Conference Agenda

Mitochondrial disease: past successes and future challenges

Doug Turnbull

Newcastle University, United Kingdom

The role of mtDNA variation in common and rare diseases

Patrick F. Chinnery

Cambridge-UK, United Kingdom

How mtDNA can talk with the complex landscape of nuclear encoded OXPHOS information?

José Antonio Enriquez

Spanish National Center for Cardiovascular Research (CNIC)

Understanding the pathophysiological mechanisms of mitochondrial diseases with MITOMICS through an integrated multi-OMICS approach of Mitomatcher, the French mitochondrial disease database

Sylvie Bannwarth¹, Alexandrina Bodrug², Céline Bris², MitoDiag Network³, Stéphane Tirard⁴, Silvia Bottini⁵, Marie Deprez⁷, Magalie Barth², Patrizia Bonneau², Pascal Reynier², Dominique Bonneau², Justine Labory⁵, Cécile Rouzier¹, Annabelle Chaussenot¹, Samira Ait-El-Mkadem-Saadi¹, Shahram Attarian⁶, Marco Lorenzi⁷, Véronique Paquis-Flucklinger¹, Anthony Brooks⁸, Vincent Procaccio²

¹Université Côte d’Azur, INSERM U1081, CNRS UMR7284, IRCAN, CHU de Nice, Nice, France; ²Département de Génétique, UMR CNRS 6015 INSERM 1083, CHU et Université d’Angers, Angers, France; ³Réseau français des laboratoires de diagnostic pour les maladies mitochondriales (Bordeaux, Caen, Grenoble, Lille, Lyon, Le Kremlin-Bicêtre, Pitié Salpêtrière, Necker Enfants Malades, Reims), Centres de référence pour les maladies mitochondriales (CALISSON, CARAMMEL), France; ⁴Université de Nantes, Nantes, France; ⁵Université Côte d’Azur, MDLab, Nice, France; ⁶Filière FILNEMUS, CHU La Timone, Marseille, France; ⁷INRIA, Equipe EPIONE, Nice, France; ⁸University of Leicester, Dept.Genetics, UK

Generating a complete human panmitogenome

Giulio Formenti¹, Alessandro Achilli², Hansi Weissensteiner³, Anna Olivieri², Andrea Guarracino⁴, Walther Parson^5,8, Nicola Rambaldi Migliore², Martin Bodner³, Valerio Carelli⁶, Leonardo Caporali⁶, Claudio Fiorini⁷, Danara Ormanbekova⁷, Erik Garrison⁴, Nicole Huber³

¹The Rockefeller University, United States of America; ²Department of Biology and Biotechnology “L. Spallanzani”, University of Pavia, 27100 Pavia, Italy; ³Medical University of Innsbruck, 6020 Innsbruck, Austria; ⁴Department of Genetics, Genomics and Informatics, University of Tennessee Health Science Center, Memphis, TN 38163, USA; ⁵Medical University of Innsbruck, 6020 Innsbruck, Austria; ⁶Department of Biomedical and Neuromotor Sciences (DIBINEM), University of Bologna, 40139 Bologna, Italy; ⁷IRCCS Institute of Neurological Sciences of Bologna; ⁸Forensic Science Program, The Pennsylvania State University, University Park, PA, USA

Negative selection of mitochondrial DNA mutations in the blood

Imogen Grace Franklin^1,5, Paul Milne^2,5, Jordan Childs¹, Isabel Barrow^1,3, Róisín M Boggan¹, Andrew M Schaefer^1,3, Catherine Feeney^1,3, Rhys H Thomas^1,3, Gráinne S Gorman^1,3, Conor Lawless¹, Yi Shiau Ng^1,3, Matthew Collin^2,4, Oliver M Russell^1,4, Sarah J Pickett^1,4

¹Wellcome Centre for Mitochondrial Research, Translational and Clinical Research Institute, Newcastle University, Newcastle-upon-Tyne; ²The Human Dendritic Cell Lab, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne; ³NHS Highly Specialised Service for Rare Mitochondrial Disorders, Newcastle upon Tyne NHS Foundation Trust, Newcastle upon Tyne; ⁴Equal Contributions; ⁵Equal Contributions

Parsing universal heteroplasmy in a large maternal lineage carrying the common LHON variant m.11778G>A/MT-ND4

Danara Ormanbekova¹, Claudio Fiorini¹, Leonardo Caporali², Alberto Pasti¹, Chiara Giannuzzi², Francesco Musacchia³, Diego Vozzi³, Milton N Moraes-Filho⁴, Solange R Salomao⁵, Adriana Berezovsky⁵, Alfredo A Sadun⁶, Stefano Gustincich³, Patrick F Chinnery⁷, Valerio Carelli^1,2

¹Azienda USL di Bologna - IRCCS Istituto delle Scienze Neurologiche di Bologna, Italy; ²Department of Biomedical and Neuromotor Sciences (DIBINEM), University of Bologna, Bologna, Italy; ³Istituto Italiano di Tecnologia – IIT, Genova, Italy; ⁴Instituto de Olhos de Colatina, Colatina, Espírito Santo, Brazil; ⁵Departamento de Oftalmologia e Ciências Visuais, Escola Paulista de Medicina, Universidade Federal de São Paulo (UNIFESP), São Paulo, São Paulo, Brazil; ⁶Doheny Eye Institute, Los Angeles, CA, USA; Department of Ophthalmology, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA; ⁷Medical Research Council Mitochondrial Biology Unit, Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK

PNPLA3, MBOAT7 and TM6SF2 modify mitochondrial dynamics in NAFLD patients: dissecting the role of cell-free circulating mtDNA and copy number

Miriam Longo¹, Erika Paolini^1,2, Marica Meroni¹, Michela Ripolone¹, Laura Napoli¹, Giada Tria¹, Marco Maggioni¹, Maurizio Maggio¹, Anna Ludovica Fracanzani^1,3, Paola Dongiovanni¹

¹Fondazione IRCCS Cà Granda Ospedale Policlinico, Italy; ²Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Italy; ³Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Italy

Initiation of mitochondrial DNA replication in mammalian cells.

Maria Falkenberg

Gothenburg University, Sweden

Regulation of mitochondrial gene expression in disease

Aleksandra Filipovska

University of Western Australia, Australia

Mitochondrial translation termination at non-canonical stop codons

Annika Krüger¹, Cristina Remes², Dmitrii Igorevich Shiriaev¹, Yong Liu¹, Henrik Spåhr¹, Rolf Wibom¹, Ilian Atanassov³, Minh Duc Nguyen¹, Barry S. Cooperman², Joanna Rorbach^1,3

¹Karolinska Institutet, Stockholm, Sweden; ²University of Pennsylvania, Pennsylvania, USA; ³Max-Planck-Institute for Biology of Ageing, Cologne, Germany

Pathological variants in TOP3A cause distinct disorders of mitochondrial and nuclear genome stability

Direnis Erdinc¹, Alejandro Rodríguez-Luis^2,3, Mahmoud R. Fassad^2,4, Sarah Mackenzie⁵, Christopher M. Watson^6,7, Sebastian Valenzuela¹, Xie Xie¹, Katja E. Menger^2,3, Kate Sergeant⁸, Kate Craig^2,9, Sila Hopton^2,9, Gavin Falkous^2,9, Joanna Poulton¹⁰, Hector Garcia-Moreno¹¹, Paola Giunti¹¹, Carlos A. de Moura Aschoff¹², Jonas A. Morales Saute^12,13,14, Amelia J. Kirby¹⁵, Camilo Toro¹⁶, Lynne Wolfe¹⁶, Danica Novacic¹⁶, Lior Greenbaum^17,18,19, Aviva Eliyahu^17,19, Ortal Barel²⁰, Yair Anikster^19,21, Robert McFarland^2,4, Gráinne S. Gorman^2,4, Andrew M. Schaefer^2,9, Claes M. Gustafsson^1,22, Robert W. Taylor^2,4,9, Maria Falkenberg¹, Thomas J Nicholls¹

¹Department of Medical Biochemistry and Cell Biology, University of Gothenburg, P.O. Box 440, SE-405 30 Gothenburg, Sweden; ²Wellcome Centre for Mitochondrial Research, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, NE2 4HH, UK; ³Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, NE2 4HH, UK; ⁴Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, NE2 4HH, UK; ⁵The Newcastle Upon Tyne Hospitals NHS Foundation Trust, Newcastle Upon Tyne, UK; ⁶North East and Yorkshire Genomic Laboratory Hub, Central Lab, St. James's University Hospital, Leeds, UK; ⁷Leeds Institute of Medical Research, University of Leeds, St. James's University Hospital, Leeds, UK; ⁸Oxford Genetics Laboratories, Oxford University Hospitals NHS Foundation Trust, Oxford, UK; ⁹NHS Highly Specialised Service for Rare Mitochondrial Disorders, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, NE1 4LP, UK; ¹⁰Nuffield Department of Women’s & Reproductive Health, The Women's Centre, University of Oxford, Oxford, UK; ¹¹Ataxia Centre, Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, Queen Square, London WC1N 3BG, UK; ¹²Medical Genetics Service, Hospital de Clínicas de Porto Alegre (HCPA), Porto Alegre, Brazil; ¹³Department of Internal Medicine, Universidade Federal do Rio Grande do Sul - Porto Alegre, Brazil; ¹⁴Graduate Program in Medicine: Medical Sciences, Universidade Federal do Rio Grande do Sul - Porto Alegre, Brazil; ¹⁵Department of Pediatrics, Wake Forest School of Medicine, Winston-Salem, NC 27101, USA; ¹⁶Undiagnosed Diseases Program, National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland, USA; ¹⁷The Danek Gertner Institute of Human Genetics, Sheba Medical Center, Tel Hashomer, Israel; ¹⁸The Joseph Sagol Neuroscience Center, Sheba Medical Center, Tel Hashomer, Israel; ¹⁹The Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel; ²⁰Genomics Unit, The Center for Cancer Research, Sheba Medical Center, Israel; ²¹Metabolic Disease Unit, Edmond and Lily Safra Children's Hospital, Sheba Medical Center, Tel Hashomer, Israel; ²²Department of Clinical Chemistry, Sahlgrenska University Hospital, Gothenburg, Sweden

The role of replicative exonucleases in mitochondrial DNA replication and degradation

Christian D Gonzalez, Nadee Nissanka, Carlos T Moraes

University of Miami Miller School of Medicine, United States of America

Processing of mitochondrial RNA in health and disease: the role of FASTKD5.

Hana Antonicka¹, James B. Gibson², Eric A. Shoubridge¹

¹The Neuro & McGill University, Montreal, Quebec, Canada; ²Dell School of Medicine, University of Texas at Austin, Austin, TX, USA

Mechanisms of mtDNA maintenance and segregation in the female germline

Laura Kremer¹, Lyuba Bozhilova^2,3, Diana Rubalcava-Garcia¹, Roberta Filograna¹, Mamta Upadhyay¹, Camilla Koolmeister¹, Patrick Chinnery^2,3, Nils-Göran Larsson¹

¹Karolinska Institutet, Stockholm, Sweden; ²MRC Mitochondrial Biology Unit, Cambridge, United Kingdom; ³Department of Clinical Neurosciences, University of Cambridge, United Kingdom

The human Mitochondrial mRNA Structurome reveals Mechanisms of Gene Expression in Physiology and Pathology

Antoni Barrientos¹, Conor Moran¹, Amir Brivanlou², Flavia Fontanesi¹, Silvi Rouskin²

¹University of Miami, United States of America; ²Harvard Medical School, United States of America

The role of mitochondria in neuromuscular diseases

Rita Horvath

Cambridge-UK, United Kingdom

Innovative approaches for the molecular diagnosis of mitochondrial disorders

Holger Prokisch

Technical University Munich Institute of Human Genetics

Specialist multidisciplinary input maximises rare disease diagnoses from whole genome sequencing

William L Macken^1,2, Micol Falabella¹, Caroline McKittrick¹, Chiara Pizzamiglio^1,2, Rebecca Ellmers³, Kelly Eggleton³, Cathy E. Woodward^2,3, Yogen Patel^2,3, Robyn Labrum^2,3, Genomics England Research Consortium⁹, Rahul Phadke⁴, Mary M. Reilly¹, Catherine DeVille⁵, Anna Sarkozy⁴, Emma Footitt⁶, James Davison^6,7, Shamima Rahman^6,8, Henry Houlden¹, Enrico Bugiardini^1,2, Rosaline Quinlivan^1,2,4, Michael G. Hanna^1,2, Jana Vandrovcova¹, Robert D.S. Pitceathly^1,2

¹Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, London, UK; ²NHS Highly Specialised Service for Rare Mitochondrial Disorders, Queen Square Centre for Neuromuscular Diseases, The National Hospital for Neurology and Neurosurgery, London, UK; ³Neurogenetics Unit, Rare and Inherited Disease Laboratory, North Thames Genomic Laboratory Hub, London, UK; ⁴Dubowitz Neuromuscular Centre, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK; ⁵Department of Neurosciences, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK; ⁶Metabolic Unit, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK; ⁷National Institute for Health and Care Research Great Ormond Street Hospital Biomedical Research Centre, London, UK; ⁸Mitochondrial Research Group, UCL Great Ormond Street Institute of Child Health, London, UK; ⁹Genomics England, One Canada Square London, UK

Biallelic variants in MCAT in an infant with lactic acidosis, lipoylation disorder, and early death

Melanie T. Achleitner¹, Maja Hempel^2,3, Konstantinos Tsiakas⁴, René G. Feichtinger¹, Saskia B. Wortmann^1,5, René Santer⁴, Johannes A. Mayr¹

¹University Children's Hospital, Paracelsus Medical University, Salzburg, Austria; ²Institute of Human Genetics, University Medical Center Eppendorf, Hamburg, Germany; ³Current address: Institute of Human Genetics, University Hospital Heidelberg, Heidelberg, Germany; ⁴Department of Pediatrics, University Medical Center Eppendorf, Hamburg, Germany; ⁵Amalia Children’s Hospital, Radboudumc, Nijmegen, The Netherlands.

Biallelic PTPMT1 variants impair cardiolipin metabolism and cause mitochondrial myopathy and developmental regression

Micol Falabella¹, Chiara Pizzamiglio^1,2, Luis Carlos Tabara³, Ece Sonmezler⁴, Benjamin Munro⁵, William L. Macken^1,2, Shanti Lu¹, Lisa Tilokani³, Padraig J. Flannery^6,7, Nina Patel^7,8, Simon A. S. Pope^7,8, Simon J. R. Heales^7,8, Jana Vandrovcova¹, Henry Houlden¹, Robert W. Taylor⁹, Cathy E. Woodward⁶, Robyn Labrum⁶, Genomics England Research Consortium¹⁰, Semra Hiz¹¹, Maha S. Zaki¹², Efstathia Chronopoulou¹³, Germaine Pierre¹³, Reza Maroofian¹, Michael G. Hanna^1,2, Yavuz Oktay^4,14,15, Rita Horvath⁵, Julien Prudent³, Robert D. S. Pitceathly^1,2

¹Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, London, UK; ²NHS Highly Specialised Service for Rare Mitochondrial Disorders, Queen Square Centre for Neuromuscular Diseases, The National Hospital for Neurology and Neurosurgery, London, UK; ³Medical Research Council Mitochondrial Biology Unit, University of Cambridge, Cambridge UK; ⁴Izmir International Biomedicine and Genome Institute, Dokuz Eylül University, Izmir, Turkey; ⁵Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK; ⁶Neurogenetics Unit, Rare and Inherited Disease Laboratory, North Thames Genomic Laboratory Hub, London, UK; ⁷Genetics and Genomic Medicine, UCL Great Ormond Street Institute of Child Health, London, UK; ⁸Neurometabolic Unit, The National Hospital for Neurology and Neurosurgery, London, UK; ⁹Wellcome Centre for Mitochondrial Research, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK; NHS Highly Specialised Service for Rare Mitochondrial Disorders of Adults and Children, Newcastle University, Newcastle upon Tyne, UK; ¹⁰Genomics England, London, UK; ¹¹Izmir Biomedicine and Genome Center, Dokuz Eylul University Health Campus, Izmir, Turkey; ¹²Clinical Genetics Department, Human Genetics and Genome Research Division, National Research Centre, Cairo, Egypt; ¹³Department of Inherited Metabolic Disease, Division of Women's and Children's Services, University Hospitals Bristol NHS Foundation Trust, Bristol, UK; ¹⁴Izmir Biomedicine and Genome Center, Izmir, Turkey; ¹⁵Department of Medical Biology, Faculty of Medicine, Dokuz Eylül University, Izmir Turkey

Heterozygous missense variants in NUTF2 (nuclear transport factor 2) gene, mapping at the OPA8 locus, cause Dominant Optic Atrophy

Agnese Macaluso¹, Alessandra Maresca¹, Concetta Valentina Tropeano¹, Maria Antonietta Capristo¹, Flavia Palombo¹, Leonardo Caporali¹, Claudio Fiorini¹, Danara Ormanbekova¹, Chiara La Morgia¹, Piero Barboni^2,3, Cristina Villaverde^4,5, Carmen Ayuso^4,5, Maria Esther Gallardo^6,5, Majida Charif⁷, Sylvie Gerber⁸, Patrizia Amati-Bonneau⁷, Guy Lanaers^7,9, Jean-Michel Rozet⁷, Bernd Wissinger¹⁰, Valerio Carelli^1,11, Valentina Del Dotto¹¹

¹IRCCS - Istituto delle Scienze Neurologiche di Bologna, Programma di Neurogenetica - Bologna (Italy); ²Studio Oculistico d'Azeglio - Bologna (Italy); ³Department of Ophthalmology, University Vita-Salute, IRCCS Ospedale San Raffaele - Milano (Italy); ⁴Department of Genetics & Genomics, Instituto de Investigación Sanitaria - Fundación Jiménez Díaz University Hospital - Universidad Autónoma de Madrid (IIS-FJD-UAM) - Madrid (Spain); ⁵Center for Biomedical Network Research on Rare Diseases (CIBERER), ISCIII - Madrid (Spain); ⁶Grupo de investigación traslacional con células iPS, Instituto de Investigación Sanitaria Hospital 12 de Octubre (i+12), Madrid, Spain; Centro de Investigación Biomédica en Red (CIBERER) - Madrid (Spain); ⁷Université d’Angers, MitoLab team, UMR CNRS 6015 - INSERM U1083, Unité MitoVasc - Angers (France); ⁸Laboratory of Genetics in Ophthalmology (LGO), INSERM UMR1163, Institute of Genetic Diseases, Imagine and Paris Descartes University - Paris (France); ⁹Departments of Biochemistry and Genetics, University Hospital Angers - Angers (France); ¹⁰Molecular Genetics Laboratory, Institute for Ophthalmic Research, Center for Ophthalmology, University of Tübingen, Tübingen, Germany; ¹¹Depart. of Biomedical and NeuroMotor Sciences (DIBINEM), University of Bologna - Bologna (Italy)

Southern African paediatric patients with King Denborough syndrome are exclusively associated with an autosomal recessive STAC3 variant: is this a highly prevalent secondary mitochondrial disease in this African population?

Francois Hendrikus van der Westhuizen¹, Maryke Schoonen¹, Michelle Bisschoff¹, Ronel Human², Elsa Lubbe², Malebo Nonyane², Armand Vorster¹, Karin Terburgh¹, Robert McFarland³, Robert Taylor³, Mahmoud Fassad³, Krutik Patel³, Wilson Lindsay⁴, Michael Hanna⁴, Jana Vandrovcova⁴, The ICGNMD Consortium⁵, Izelle Smuts²

¹Human Metabolomics, North-West University, Potchefstroom, South Africa; ²Department of Paediatrics, Steve Biko Academic Hospital, University of Pretoria, Pretoria, South Africa; ³Wellcome Centre for Mitochondrial Research, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, United Kingdom; ⁴Centre for Neuromuscular Diseases, UCL Queen Square Institute of Neurology, London, United Kingdom; ⁵https://www.ucl.ac.uk/genomic-medicine-neuromuscular-diseases/global-contributor-list

AK3, adenylate kinase isozyme 3, is a new gene associated with PEO and multiple mtDNA deletions

Alessia Nasca¹, Andrea Legati¹, Teresa Ciavattini¹, Nadia Zanetti¹, Eleonora Lamantea¹, Javier Ramón², Ramon Martí², Maria Antonietta Maioli³, Costanza Lamperti¹, Holger Prokisch^4,5, Daniele Ghezzi^1,6

¹Fondazione IRCCS Istituto Neurologico Besta, Italy; ²Vall d'Hebron Research Institute, Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Autonomous University of Barcelona, Barcelona, Spain; ³Centro Sclerosi Multipla, P.O. Binaghi, ASL Cagliari, Italy; ⁴Technical University of Munich, School of Medicine, Institute of Human Genetics, 81675 Munich, Germany; ⁵Institute of Neurogenomics, Helmholtz Zentrum München, 85764 Munich, Germany; ⁶Department of Pathophysiology and Transplantation (DEPT), University of Milan, Italy

Guanylate kinase 1 deficiency: a novel and potentially treatable form of mitochondrial DNA depletion/deletions syndrome

Agustin Hidalgo-Gutierrez¹, Jonathan Shintaku¹, Eliana Barriocanal-Casado¹, Russ Saneto², Javier Ramon^4,7, Gloria Garrabou^4,5, Frederic Tort^3,4, Jose Cesar Milisenda⁶, Laura Gort^3,4, Alba Pesini¹, Saba Tadesse¹, Mary-Claire King⁸, Ramon Marti^4,7, Antonia Ribes^3,4, Michio Hirano¹

¹Department of Neurology, Columbia University Irving Medical Center, New York, NY, USA; ²Seattle Children’s Hospital, Seattle, WA, USA; ³Section of Inborn Errors of Metabolism-IBC. Department of Biochemistry and Molecular Genetics. Hospital Clinic de Barcelona-IDIBAPS, Barcelona.; ⁴Biomedical Network Research Centre on Rare Diseases (CIBERER), Instituto de Salud Carlos III, Barcelona; ⁵Muscle Research and Mitochondrial Function Lab, Cellex - IDIBAPS. Faculty of Medicine and Health Science - University of Barcelona (UB), Barcelona.; ⁶Department of Internal Medicine, Hospital Clínic of Barcelona.; ⁷Vall d’Hebron Research Institute, Autonomous University of Barcelona, Barcelona, Spain.; ⁸Department of Genome Sciences, University of Washington, Seattle, WA, U.S.A.

Metabolic adaptations of respiratory chain organization and function

Erika Fernandez-Vizarra^1,2

¹Department of Biomedical Sciences, University of Padova, Italy; ²Veneto Institute of Molecular Medicine, Padova, Italy

Pluripotent stem cells and brain organoids for drug discovery of mitochondrial diseases

Alessandro Prigione

Heinrich Heine University, Düsseldorf, Germany

High-throughput single cell analysis reveals progressive mitochondrial DNA mosaicism developing throughout life

Angelos Glynos^1,2, Lyuba V. Bozhilova^1,2, Michele Frison^1,2, Stephen P. Burr^1,2, James B. Stewart³, Patrick F. Chinnery^1,2

¹Department of Clinical Neurosciences, School of Clinical Medicine, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK; ²Medical Research Council Mitochondrial Biology Unit, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK; ³Biosciences Institute, Faculty of Medical Sciences, Wellcome Centre for Mitochondrial Research, Newcastle University, Newcastle upon Tyne, UK

A coordinated multiorgan metabolic response contributes to human mitochondrial myopathy.

Guido Primiano³, Nneka Southwell¹, Viraj Nadkarni¹, Emelie Beattie¹, Maria Lucia Valentino⁴, Valerio Carelli⁴, Serenella Servidei³, Giovanni Manfredi¹, Qiuying Chen², Marilena D'Aurelio¹

¹Weill Cornell Medicine, Brain and Mind Research Institute, New York, NY; ²Weill Cornell Medicine, Department of Pharmacology, New York, NY; ³Fondazione Policlinico Universitario A. Gemelli, IRCCS, Rome, Italy; Dipartimento di Neuroscienze, Università Cattolica del Sacro Cuore, Rome, Italy; ⁴IRCCS, Institute of Neurological Sciences of Bologna, Bellaria Hospital, Bologna, Italy; Department of Biomedical and NeuroMotor Sciences (DIBINEM), University of Bologna, Bologna, Italy

Succinylation as a novel pathogenic mechanism in a children's mitochondrial brain disease

Pieti Elonkirjo¹, Tuomas Kukkonen¹, Juan Liu², Jason W. Locasale², Sami Jalil¹, Birgit Schilling³, Eric Verdin^3,4, Marco Reidelbach⁵, Outi Haapanen⁵, Vivek Sharma^5,6, Elsebet Oestergaard⁷, Rosalba Carrozzo⁸, Berge Minassian^9,10, Anu Suomalainen¹

¹STEMM, Faculty of Medicine, University of Helsinki, 00290 Helsinki, Finland; ²Department of Pharmacology and Cancer Biology, Duke University School of Medicine, Durham, NC, USA; ³Buck Institute for Research on Aging, Novato, CA 94945, USA; ⁴Gladstone Institutes and University of California, San Francisco, CA 94158, USA; ⁵Department of Physics, University of Helsinki, Finland; ⁶HiLIFE Institute of Biotechnology, University of Helsinki, Finland; ⁷Department of Clinical Genetics, Copenhagen University Hospital Rigshospitalet, 2100 Copenhagen, Denmark; ⁸Unit of Cellular Biology and Mitochondrial Diseases, “Bambino Gesù” Children's Hospital, IRCCS, Rome, Italy; ⁹Program in Genetics and Genome Biology, The Hospital for Sick Children, Institute of Medical Science University of Toronto, Toronto, Ontario, Canada; ¹⁰Division of Neurology, Department of Pediatrics, University of Texas Southwestern, Dallas, TX, USA

The levels and activation state of the pyruvate dehydrogenase complex modulate the SCAFI-dependent organization of the mitochondrial respiratory chain

Sandra Lopez-Calcerrada¹, Ana Sierra-Magro¹, Erika Fernández-Vizarra², Cristina Ugalde^1,3

¹Instituto de Investigación Hospital 12 de Octubre, Madrid 28041, Spain; ²Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy; ³Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), U723, Madrid, Spain

Oxphos deficiency indicates novel functions for the mitochondrial protein import subunit tim50

Jordan J Crameri¹, Catherine S Palmer¹, David Coman², David A Stroud¹, David R Thorburn^3,4,5, Ann E Frazier^3,4, Diana Stojanovski¹

¹Department of Biochemistry and Pharmacology and the Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Parkville, Victoria, 3010, Australia; ²Queensland Children’s Hospital, Department of Metabolic Medicine, South Brisbane, Brisbane, Queensland, 4001, Australia; ³Murdoch Children’s Research Institute, Royal Children’s Hospital, Melbourne, Victoria, 3052, Australia; ⁴Department of Paediatrics, University of Melbourne, Melbourne, Victoria, 3052, Australia; ⁵Victorian Clinical Genetics Services, Royal Children’s Hospital, Melbourne, Victoria, 3052, Australia

Microproteins in metabolic regulation

Jiemin Nah¹, Baptiste Kerouanton¹, David Robinson², Kyle Dunlap³, Pooja Sridnivasan¹, Sonia Chothani¹, Greg Ducker³, Owen Rackham⁴, David Stroud², Lena Ho¹

¹Duke-NUS Medical School, Singapore; ²University of Melbourne, Australia; ³University of Utah, USA; ⁴University of Southampton, UK

Recessive MECR pathogenic variants cause a LHON-like optic neuropathy

Claudio Fiorini¹, Andrea Degiorgi², Maria Lucia Cascavilla³, Concetta Valentina Tropeano¹, Chiara La Morgia^1,4, Marco Battista³, Danara Ormanbekova¹, Flavia Palombo¹, Michele Carbonelli⁴, Francesco Bandello³, Valerio Carelli^1,4, Alessandra Maresca¹, Piero Barboni³, Enrico Baruffini², Leonardo Caporali⁴

¹IRCCS Istituto delle Scienze Neurologiche di Bologna, Italy; ²Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parma, Italy; ³Department of Ophthalmology, University Vita-Salute, IRCCS Ospedale San Raffaele, Milan, Italy; ⁴Department of Biomedical and NeuroMotor Sciences (DIBINEM), University of Bologna, Italy

Variants in ATP5F1B are associated with dominantly inherited dystonia

Alessia Nasca¹, Niccolò Mencacci², Federica Invernizzi¹, Michael Zech³, Andrea Legati¹, Giovanna Zorzi¹, Holger Prokisch³, Steven Lubbe², Barbara Garavaglia¹, Daniele Ghezzi^1,4

¹Fondazione IRCCS Istituto Neurologico Besta, Milan, Italy; ²Northwestern University, Feinberg School of Medicine, Chicago, USA; ³Helmholtz Zentrum München, Technical University of Munich, Munich, Germany; ⁴Università di Milano, Milan, Italy

Toward clinical implementation of quantitative proteomics in the detection of mitochondrial disorders

Daniella H Hock¹, Liana N Semcesen¹, Nikeisha J Caruana^1,2, Sumudu Amarasekera^1,3, Teresa Zhao^1,3,4, Ann E Frazier^1,3, Shabnam Bakhshalizadeh^1,3, Megan Ball^1,3,4, Tegan Stait^3,4, Jessie Jacobsen^5,6, Emma Glamuzina^5,6, Bryony Ryder^5,6, Johan L K Van Hove⁷, Elena Tucker^1,3, Andrew Sinclair^1,3,4, Cas Simons^8,9, Alison G Compton^1,3,4, John Christodoulou^1,3,4, David R Thorburn^1,3,4, David A Stroud^1,3,4

¹University of Melbourne, Parkville, Australia; ²Victoria University, Footscray, Australia; ³Murdoch Children’s Research Institute, Melbourne, Australia; ⁴Victorian Clinical Genetics Services, Melbourne, Australia; ⁵National Metabolic Service Auckland City Hospital, Auckland, New Zealand; ⁶Starship Children's Hospital, Auckland, New Zealand; ⁷University of Colorado, Aurora, United States of America; ⁸Centre for Population Genomics, Melbourne, Australia; ⁹Garvan Institute of Medical Research, Sydney, Australia

A DNM2-related myopathy mimicking a primary mitochondrial disorder

Ignazio Giuseppe Arena¹, Rosalba Carrozzo², Mattia Porcino¹, Alba Migliorato³, Carmelo Rodolico¹, Olimpia Musumeci¹

¹Unit of Neurology and Neuromuscular Disorders, Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy.; ²Department of Neurosciences, Unit of Muscular and Neurodegenerative Disorders, Laboratory of Molecular Medicine, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy; ³Unit of Neurology and Neuromuscular Disorders, Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy.

Assessing the association of mitochondrial DNA genes with Primary Mitochondrial Disease using the ClinGen Clinical Validity Framework

Elizabeth M. McCormick¹, James T. Peterson¹, Julie P. Taylor², Krista Bluske², Amanda R. Clause², Anjana Chandrasekhar², Josh Lowry², Alison J. Coffey², Xiaowu Gai^3,4, Marni J. Falk^1,5, Zarazuela Zolkipli-Cunningham^1,5, Shamima Rahman⁶

¹Mitochondrial Medicine Frontier Program, Division of Human Genetics, Department of Pediatrics, Children’s Hospital of Philadelphia, Philadelphia, PA; ²Illumina Laboratory Services, Illumina Inc., San Diego, CA; ³Center for Personalized Medicine, Department of Pathology & Laboratory Medicine, Children's Hospital Los Angeles, Los Angeles, CA; ⁴Keck School of Medicine, University of Southern California, Los Angeles, CA; ⁵Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA; ⁶Genetics and Genomic Medicine, UCL Great Ormond Street Institute of Child Health, London, United Kingdom

Functional characterisation of the m.8424T>C MT-ATP8 variant using quantitative proteomics

Liana Semcesen¹, Nikeisha Caruana^1,2, Daniella Hock¹, Alison Compton^1,3,4, Zornitza Stark^1,4,5, John Christodoulou^1,3,4, David Thorburn^1,3,4, David Stoud^1,3,4

¹University of Melbourne, Parkville, Australia; ²Victoria University, Footscray, Australia; ³Murdoch Children’s Research Institute, Melbourne, Australia; ⁴Victorian Clinical Genetics Services, Melbourne, Australia; ⁵Australian Genomics, Melbourne, Australia

COX18 variants cause isolated Complex IV deficiency associated with neonatal hypertrophic cardiomyopathy, myopathy and axonal sensory neuropathy

Dario Ronchi¹, Megi Meneri^1,2, Francesca Magri², Francesca Menni², Manuela Garbellini², Maria Francesca Bedeschi², Robertino Dilena², Valeria Cecchetti², Irene Picciolli², Francesca Furlan², Valentina Polimeni², Sabrina Salani², Laura Pezzoli², Francesco Fortunato¹, Matteo Bellini³, Sara Antognozzi², Daniela Piga², Michela Ripolone², Simona Zanotti², Laura Napoli², Patrizia Ciscato², Monica Sciacco², Giovanna Mangili³, Fabio Mosca², Stefania Corti^1,2, Maria Iascone³, Giacomo Pietro Comi^1,2

¹Dino Ferrari Center, University of Milan, Italy; ²IRCCS Cà Granda Ospedale Maggiore Policlinico Milan, Italy; ³ASST Papa Giovanni XXIII, Bergamo, Italy

Severe mitochondrial encephalomyopathy caused by de novo variants in OPA1

Daria Diodato¹, Michela Di Nottia², Alessandra Torraco², Teresa Rizza², Claudia Nesti³, Enrico Baruffini³, Diego Martinelli⁴, Margherita Verardo¹, Adele D'Amico¹, Filippo Maria Santorelli⁵, Enrico Bertini¹, Rosalba Carrozzo²

¹Muscular and Neurodegenerative Disorders Unit, Children Hospital Bambino Gesù; ²Cellular biology and mitochondrial diseases diagnostics, Children Hospital Bambino Gesù; ³Department of Chemistry Life Sciences and Environmental Sustainability, University of Parma; ⁴Metabolism Division, Children Hospital Bambino Gesù, Rome; ⁵Molecular Medicine, IRCCS Stella Maris, Pisa

Bi-allelic TEFM variants are associated with a treatable mitochondrial myopathy

Alessandra Torraco¹, Guido Primiano^2,3, Anastasia Altobelli¹, Teresa Rizza¹, Michela Di Nottia¹, Rosalba Carrozzo¹, Serenella Servidei^2,3

¹Unit of Cellular Biology and Diagnosis of Mitochondrial Disease, Bambino Gesù Children’s Hospital, IRCCS, Rome Italy.; ²Dipartimento di Neuroscienze, Organi di Senso e Torace, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy.; ³Dipartimento Di Neuroscienze, Università Cattolica del Sacro Cuore, Rome, Italy.

TOMM40L as a new causative gene for autosomal recessive mitochondrial disease.

Francisco Javier Cotrina Vinagre¹, María Elena Rodríguez García¹, Lucía Del Pozo Filiú¹, Elena Martín Hernández^2,3, Francisco Martínez Azorín^1,3

¹Laboratorio de Enfermedades Mitocondriales. Instituto de Investigación Hospital 12 de Octubre (i+12), E-28041 Madrid, Spain.; ²Unidad Pediátrica de Enfermedades Raras, Enfermedades Mitocondriales y Metabólicas Hereditarias, Hospital 12 de Octubre, E-28041, Madrid, Spain.; ³Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), U723, E-28041 Madrid, Spain.

A primary cardiological phenotype caused by an inherited mtDNA single deletion: a case report from an Italian pedigree

Piervito Lopriore¹, Christiane Neuhofer^2,3, Vincenzo Montano¹, Adriana Meli¹, Annalisa Lo Gerfo⁴, Giulia Cecchi⁴, Maria Adelaide Caligo⁴, Riccardo Berutti^2,3, Robert Kopajtich^2,3, Gabriele Siciliano¹, Holger Prokisch^2,3, Michelangelo Mancuso¹

¹Department of Clinical and Experimental Medicine, Neurological Institute, University of Pisa, Pisa, Italy; ²Institute of Human Genetics, Klinikum rechts der Isar, School of Medicine, Technical University of Munich, Munich, Germany; ³Institute of Neurogenomics, Computational Health Center, Helmholtz Zentrum München, Neuherberg, Germany; ⁴Laboratory of Molecular Genetics, Azienda Ospedaliero-Universitaria Pisana, Pisa, Italy

Genetic characterization of a large cohort of Spanish patients with TK2 deficiency. A founder effect of two TK2 variants partially contributes to a higher prevalence of the disorder in Spain.

Cristina Domínguez-González^1,2, Pablo Serrano-Lorenzo^1,2, Alberto Blázquez^1,2, Juan Francisco Quesada-Espinosa¹, Jorge Amigo Lechuga³, Pablo Mínguez^2,4, Carmen Ayuso^2,4, Elena García-Arumí⁵, Nuria Muelas^2,6, Teresa Jaijo⁶, Andrés Nascimento⁷, Beatriz Galán-Rodriguez⁸, Carmen Paradas^8,9, Joaquín Arenas^1,2, Ángel Carracedo^2,3, Ramon Martí^2,5, Miguel A. Martin^1,2

¹Hospital Universitario 12 de Octubre, imas12 Research Institute, Madrid, Spain; ²Spanish Network for Biomedical Research in Rare Diseases (CIBERER); ³Fundación Galega de Medicina Xenómica, Santiago de Compostela, Spain; ⁴Instituto de Investigación Sanitaria, Hospital Universitario FundaciónJiménez Díaz, Madrid, Spain; ⁵Research Group on Neuromuscular and Mitochondrial Diseases, Vall d’Hebron Research Institute, Autonomous University of Barcelona, Barcelona; ⁶Hospital Universitari I Politècnic La Fe, Neuromuscular and Ataxias Research Group, Instituto de Investigación Sanitaria La Fe, Valencia; ⁷Sant Joan de Déu Research Institute, Sant Joan de Déu Hospital, Barcelona, Spain.; ⁸Instituto de Biomedicina de Sevilla, Hospital U. Virgen del Rocío, Sevilla, Spain.; ⁹Center for Biomedical Network Research on Neurodegenerative Disorders (CIBERNED)

HSD17B10 interacts with CBR4 to form human mitochondrial 3-ketoacyl-acyl carrier protein reductase 2 (KAR2) in the mitochondrial fatty acid synthesis pathway

Ali Julfiker Md Masud, Guangyu Jiang, Kaija J Autio, J Kalervo Hiltunen, Alexander J Kastaniotis

Faculty of Biochemistry and Molecular Medicine, University of Oulu, Finland

Novel atypical variants causing pyruvate dehydrogenase complex deficiency

Helene Bruhn^1,2, Karin Naess^1,2, Sofia Ygberg^2,3, Nicole Lesko^2,4, Rolf Wibom^1,2, Anna Wedell^2,4, Anna Wredenberg^1,2

¹Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden; ²Centre of inherited metabolic diseases, Karolinska University Hospital, Stockholm, Sweden; ³Neuropediatric Unit, Dept of Women’s, and Children's Health, Karolinska Institutet, Stockholm, Sweden; ⁴Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden

Novel genetic discoveries detected using diagnostic OMICSs in patients suspected to suffer from multiple acyl-CoA dehydrogenation deficiency

Signe Mosegaard^1,11, Mirjana Gusic^2,3, Yasuhiko Ago⁴, Xiao Yue⁴, Vincente Yépez^3,5, Julien Gagneur^3,5, Robert Kopajtich³, Dmitrii Smirnov³, Sarah Stenton², Robert Barski⁶, Mark Sharrard⁷, Stanley H. Korman⁸, Jolanta Sykut-Cegielska⁹, Anibh M. Das¹⁰, Helle H. Nygaard¹¹, Margrethe Kjeldsen¹¹, Yusof Rahman¹², Skadi Beblo¹³, Mirian C. H. Janssen¹⁴, Eva Morava¹⁵, Leo A. J. Kluijtmans¹⁶, Alexander Asamoah¹⁷, Emma Buckley¹⁸, Isaque Qureshi¹⁸, Godfrey T. Gillett¹⁹, Ole H. Larsen²⁰, Niels Gregersen¹¹, Toshiyuki Fukao^4,21, Hideo Sasai⁴, Simon Olpin²², Holger Prokisch^2,3, Rikke K. J. Olsen¹¹

¹Laboratory Genetic Metabolic Diseases, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam Gastroenterology, Endocrinology, and Metabolism, Amsterdam Cardiovascular Sciences, Amsterdam, The Netherlands; ²Institute of Neurogenomics, Helmholtz Zentrum München, Germany; ³Institute of Human Genetics, School of Medicine, Technical University Munich, München, Germany.; ⁴Department of Pediatrics, Graduate School of Medicine, Gifu University Hospital, Gifu, Japan.; ⁵Department of Informatics, Technical University of Munich, Garching, Germany.; ⁶Department of Biochemical Genetics, St James's University Hospital, Leeds, UK.; ⁷Department of Pediatrics, Sheffield Children's Hospital, Sheffield, UK.; ⁸Department of Pediatrics, Shaare Zedek Medical Center, Jerusalem, Israel.; ⁹Department of Inborn Errors of Metabolism and Paediatrics, The Institute of Mother and Child, Warsaw, Poland.; ¹⁰Department of Pediatrics, Hannover Medical School, Hannover, Germany.; ¹¹Research Unit for Molecular Medicine, Aarhus University and Aarhus University Hospital, Aarhus, Denmark.; ¹²Center for Inherited Metabolic Disorders, Guy’s & St Thomas’ Hospital NHS Foundation Trust, London, UK.; ¹³University Hospital for Children and Adolescents, University of Leipzig, Leipzig, Germany.; ¹⁴Department of Internal Medicine, Radboud University Medical Center, Nijmegen, The Netherlands.; ¹⁵Department of Clinical Genomics, Mayo Clinic, Rochester, Minnesota, USA; ¹⁶Translational Metabolic Laboratory, Department of Laboratory Medicine, Radboud University Medical Center, Nijmegen, Netherlands.; ¹⁷UofL Physicians Novak Center for Children's Health, Louisville, USA.; ¹⁸Nottingham Children’s Hospital, Nottingham University Hospitals NHS Trust, Queen's Medical Centre, Nottingham, UK; ¹⁹Sheffield Teaching Hospitals NHS Trust, University of Sheffield, Sheffield, UK; ²⁰Department of Molecular Medicine, Aarhus University Hospital, Aarhus, Denmark.; ²¹Clinical Genetics Center, Gifu University Hospital, Gifu, Japan.; ²²Department of Clinical Chemistry, Sheffield Children’s Hospital, Sheffield, UK.

The Australian genomics mitochondrial flagship: a national program delivering mitochondrial diagnoses

David Thorburn^1,2,3, Naomi Baker^2,3, Shanti Balasubramaniam⁴, Stephanie Best⁵, Kaustuv Bhattacharya⁴, Kristen Boggs⁴, Sarah Borrie⁶, Drago Bratkovic⁶, Jeffrey Braithwaite⁵, Alessandra Bray⁴, Jo Burke⁷, David Coman^8,9, Alison Compton^1,2, Mark Cowley¹⁰, Martin Delatycki^2,3, Michelle de Silva^1,2,3, Carolyn Ellaway⁴, Michael Fahey¹¹, Janice Fletcher¹², Leah Frajman^1,2, Ann Frazier^1,2, Velimer Gayeskiv⁹, Roula Ghaoui¹², Himanshu Goel¹³, Ilias Goranitis², Daniella Hock², Denise Howting¹⁴, Matilda Jackson⁶, Maina Kava¹⁵, Sarah King-SMith⁶, Nicole Lake^1,16, Phillipa Lamont^15,17, Joy Lee^2,18, Janet Long⁵, Mandi MacShane¹⁵, Ellenore Martin⁴, Jim McGill⁸, Sean Murray¹⁹, Julie Panetta¹¹, Liza Phillips²⁰, Michael Quinn²¹, Rocio Rius^1,2, Michael Ryan²², Nicholas Smith⁶, David Stroud^1,2,3, Michel Tchan²³, Melanie Tom²¹, Matthew Wallis⁷, Tyson Ware²⁴, AnneMarie Welch¹, Christine Wools¹¹, Eunice Wu², John Christodoulou^1,2,3

¹Murdoch Children's Research Institute, Melbourne, Australia; ²University of Melbourne, Melbourne, Australia; ³Victorian Clinical Genetics Services, Melbourne,; ⁴Sydney Children’s Hospitals Network, Westmead, Australia; ⁵Macquarie University, Sydney, Australia; ⁶Women’s and Children’s Hospital, Adelaide, Australia; ⁷Tasmanian Clinical Genetics Service, Hobart, Australia; ⁸Queensland Children’s Hospital, Brisbane, Australia; ⁹Wesley Hospital, Brisbane, Australia; ¹⁰Garvan Institute, Sydney, Australia; ¹¹Royal Melbourne Hospital, Melbourne, Australia; ¹²Royal Adelaide Hospital, Adelaide, Australia; ¹³John Hunter Hospital, Newcastle, Australia; ¹⁴Harry Perkins Institute of Medical Research, Perth, Australia; ¹⁵Perth Children’s Hospital, Perth, Australia; ¹⁶Yale School of Medicine, New Haven, CT, USA; ¹⁷Royal Perth Hospital, Perth, Australia; ¹⁸Royal Children’s Hospital, Melbourne, Australia; ¹⁹Mito Foundation, Sydney, Australia; ²⁰Mater Hospital, Brisbane, Australia; ²¹Genetic Health Queensland, Brisbane, Australia; ²²Monash University, Melbourne, Australia; ²³Westmead Hospital, Westmead, Australia; ²⁴Royal Hobart Hospital, Hobart, Australia

A new family with a case of severe early-onset muscle fatigue and a peculiar maternally inherited painful swelling in chewing muscles associated with homoplasmic m.15992A>T mutation in mitochondrial tRNAPro

Irene Bruno¹, Elena Ghirigato², Mirko Baglivo³, Francesca Terenzi², Nadia Zanetti³, Massimo Zeviani¹, Eleonora Lamantea³

¹Institute for Maternal and Child Health IRCCS Burlo Garofolo, Trieste, Italy; ²Department of Medicine, Surgery, and Health Sciences, University of Trieste, Trieste, Italy; ³Unit of Medical Genetics and Neurogenetics, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy.

A novel MT-ATP6 variant associated with complicated ataxia in two unrelated Italian patients: case report and functional studies. 

Daniele Sala¹, Silvia Marchet¹, Lorenzo Nanetti¹, Andrea Legati¹, Caterina Mariotti¹, Eleonora Lamantea¹, Daniele Ghezzi^1,2, Alessia Catania¹, Costanza Lamperti¹

¹Unit of Medical Genetics and Neurogenetics, Fondazione IRCCS Istituto Neurologico Carlo Besta; ²Department of Pathophysiology and Transplantation (DEPT), University of Milan

Biallelic pathogenic variants of PARS2 cause Developmental and Epileptic Encephalopathy with Spike-and-Wave Activation in Sleep

Laura Licchetta¹, Carlotta Stipa¹, Raffaella Minardi¹, Margherita Santucci^1,2, Lucia Di Giorgi^2,3, Martina Soldà¹, Valerio Carelli^1,2, Francesca Bisulli^1,2

¹IRCCS, Istituto delle Scienze Neurologiche di Bologna, Italy; ²Department of Biomedical and Neuromotor Sciences, University of Bologna, Italy; ³Department of Biomedicine, Neuroscience and Advanced Diagnostics, University of Palermo, Italy.

Novel KARS1 mutation causes early-onset lethal cardiomyopathy

Sara Casalini¹, Silvia Buratti¹, Chiara Panicucci¹, Maria Elena Derchi¹, Marco Scaglione¹, Claudia Nesti², Monica Traverso¹, Francesca Madia¹, Michela Di Nottia³, Chiara Fiorillo¹, Valeria Capra¹, Filippo Maria Santorelli², Andrea Moscatelli¹, Rosalba Carrozzo³, Claudio Bruno¹

¹IRCCS Istituto Giannina Gaslini, Genoa; ²IRCCS Fondazione Stella Maris, Calambrone (PI); ³IRCCS Ospedale Bambin Gesù, Rome

The ER-MITO (Emilia Romagna-Mitochondrial) project: prevalence and genetics of Chronic Progressive External Ophthalmoplegia (CPEO) in an Italian region

Maria Lucia Valentino^1,2, Leonardo Caporali¹, Chiara La Morgia^1,2, Flavia Palombo¹, Martina Romagnoli¹, Cristina Fonti¹, Alessandra Maresca¹, Rocco Liguori^1,2, Corrado Zenesini¹, Roberto D'Alessandro¹, Valerio Carelli^1,2

¹IRCCS Institute of Neurological Sciences of Bologna, Italy; ²Department of Biomedical and Neuromotor Sciences, University of Bologna, Italy

UCHL1 missense and loss-of-function variants as an emerging cause of autosomal dominant optic atrophy (ADOA)

Claudio Fiorini¹, Giada Capirossi^1,2, Eleonora Pizzi¹, Federico Sadun³, Maria Lucia Cascavilla⁴, Chiara La Morgia^1,2, Marco Battista⁴, Piero Barboni⁴, Danara Ormanbekova¹, Valentina Del Dotto², Flavia Palombo¹, Valerio Carelli^1,2, Alessandra Maresca¹, Leonardo Caporali²

¹IRCCS Istituto delle Scienze Neurologiche di Bologna, Italy; ²Department of Biomedical and NeuroMotor Sciences (DIBINEM), University of Bologna, Italy; ³Ospedale Oftalmico Roma, Rome, Italy; ⁴Department of Ophthalmology, University Vita-Salute, IRCCS Ospedale San Raffaele, Milan, Italy

Mitochondrial dysfunction in patients with early-onset UFM1-linked encephalopathy

Samira Ait El Mkadem - Saadi^1,2, Cécile Rouzier^1,2, Annabelle Chaussenot^1,2, Konstantina Fragaki^1,2, Sylvie Bannwarth^1,2, Julien Neveu³, Aline Cano³, Brigitte Chabrol³, Véronique Paquis-Flucklinger^1,2

¹National Centre for Mitochondrial Diseases, Nice Teaching Hospital (CHU de Nice), Department of Medical Genetics, Nice, France; ²Université Côte d'Azur, CHU, Inserm, CNRS, IRCAN, France; ³APHM, La Timone Hospital, Department of Neuropediatrics, Marseille, France

A novel dominant variant in the ISCU gene is associated with mitochondrial myopathy

Joanna Rusecka^1,2, Dominika Szczęśniak^2,3, Magdalena Kacprzak², Damian Loska², Kamila Czerska², Agnieszka Sobczyńska-Tomaszewska²

¹Maria Sklodowska-Curie, Medical Academy in Warsaw, Poland; ²MedGen Medical Center, Warsaw, Poland; ³Institute of Psychiatry and Neurology, Warsaw, Poland

Expanding the spectrum of clinical presentations associated with COA8 pathogenic

Sara Antognozzi¹, Magi Meneri^1,2, Francesca Magri¹, Manuela Garbellini¹, Sabrina Salani¹, Francesco Fortunato², Michela Ripolone¹, Simona Zanotti¹, Patrizia Ciscato¹, Monica Sciacco¹, Stefania Corti^1,2, Giacomo Pietro Comi^1,2, Dario Ronchi²

¹IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy; ²Dino Ferrari Center, University of Milan, Milan, Italy

A novel mitochondrial DNA variant, m.14430A>C, in MT-ND6 as the likely cause of Leigh syndrome with mitochondrial complex I deficiency.

Surita Meldau^1,2, Gillian T M Riordan^1,3, Sally Ackermann⁴, Sharika Raga^1,3,6, Careni Spencer^1,5, George F Van der Watt^1,2, Kashief Khan², Francois H Van der Westhuizen⁷

¹University of Cape Town, Cape Town, South Africa; ²National Health Laboratory Sevices, South Africa; ³Red Cross War Memorial Children's Hospital, Cape Town, South Africa; ⁴Constantiaberg Mediclinic, Cape Town, South Africa; ⁵Grootte Schuur Hospital, Cape Town, South Africa; ⁶Neuroscience Institute, University of Cape Town, Cape Town, South Africa; ⁷Human Metabolomics, North-West University, Potchefstroom, South Africa

Leigh syndrome and Fanconi renotubular syndrome are the main clinical phenotype due to mutations in NDUFAF6 gene.

Teresa Rizza¹, Alessandra Torraco¹, Michela Di Nottia¹, Daniela Verrigni¹, Anastasia Altobelli¹, Diego Martinelli¹, Daria Diodato¹, Stephanie Efthymiou², Carlo Dionisi-Vici¹, Enrico Bertini¹, Reza Maroofian², Agnes Rotig³, Rosalba Carrozzo¹

¹Bambino Gesù Children Hospital, Italy; ²UCL Queen Square Institute of Neurology; ³Université Paris Descartes, Sorbonne Paris Cité

Mitochondrial encephalomyopathy associated with the m.618T>C in MT-TF

Aryane Silva Coutinho², Tainara Zappia Tessaro¹, Rodrigo Fonseca Vilanova¹, Celia Harumi Tengan²

¹Hospital Municipal Dr. José de Carvalho, Brazil; ²Escola Paulista de Medicina, Universidade Federal de São Paulo, Brazil

TWNK in Parkinson's disease: a Movement Disorder and Mitochondrial Disease Center perspective study

Marco Percetti^1,2,3, Giulia Franco^3,4, Edoardo Monfrini^3,4, Leonardo Caporali⁵, Raffaella Minardi⁵, Chiara La Morgia⁵, Maria Lucia Valentino^5,6, Rocco Liguori^5,6, Ilaria Palmieri⁷, Donatella Ottaviani⁸, Maria Vizziello³, Dario Ronchi³, Federica Di Berardino⁹, Antoniangela Cocco^10,11, Bertil Macao¹², Maria Falkenberg¹², Giacomo Pietro Comi^3,4, Alberto Albanese¹¹, Bruno Giometto⁸, Enza Maria Valente^7,13, Valerio Carelli^5,6, Alessio Di Fonzo^3,4

¹School of Medicine and Surgery and Milan Center for Neuroscience, University of Milan-Bicocca.; ²Foundation IRCCS San Gerardo dei Tintori, Monza; ³Dino Ferrari Center, Neuroscience Section, Department of Pathophysiology and Transplantation, University of Milan, Milan 20122, Italy; ⁴Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Neurology Unit, Milan, Italy; ⁵IRCCS Istituto delle Scienze Neurologiche di Bologna, Bologna, Italy; ⁶Unit of Neurology, Department of Biomedical and NeuroMotor Sciences (DIBINEM), University of Bologna, Bologna, Italy; ⁷Neurogenetics Research Center, IRCCS Mondino Foundation, Pavia, Italy; ⁸Neurology Unit, Rovereto Hospital, Azienda Provinciale per i Servizi Sanitari (APSS) di Trento, Trento, Italy; ⁹Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Audiology Unit, Milan, Italy; ¹⁰University of Milan, Milan, Italy; ¹¹Department of Neurology, Istituto di Ricovero e Cura a Carattere Scientifico Humanitas, Research Hospital, Milan, Italy; ¹²Department of Medical Biochemistry and Cell Biology, University of Gothenburg, P.O. Box 440, SE 405 30 Gothenburg, Sweden; ¹³Department of Molecular Medicine, University of Pavia, Pavia, Italy.

Novel pathogenic MT-ND3 variant causing a particular MELAS phenotype

Lucile Riera-Navarro¹, Cécile Rouzier¹, Samira Saadi Ait-El-Mkadem¹, Konstantina Fragaki^1,2, Sylvie Bannwarth^1,2, Pierre Thomas³, Luisa Villa⁴, Véronique Paquis Flucklinger^1,2, Annabelle Chaussenot¹

¹CHU de Nice, France; ²Université Côte d'Azur, CNRS, INSERM, IRCAN; ³Service de Neurologie- Hôpital Pasteur 2, CHU de Nice; ⁴Centre de référence des Maladies neuromusculaires

Mitochondrial molecular genetic findings in the South African diagnostic setting

Surita Meldau^1,2, Elizabeth Patricia Owen^1,2, Kashief Khan², Gillian Tracy Riordan³

¹University of Cape Town, Cape Town, South Africa; ²National Health Laboratory Sevices, South Africa; ³Red Cross War Memorial Children's Hospital, Cape Town, South Africa

Known genes, new genes and new phenotypes in inherited mitochondrial eye diseases

Neringa Jurkute^1,2,3, Gavin Arno^1,2,4, Patrick Yu-Wai-Man^1,2,5,6, Andrew R Webster^1,2

¹Moorfields Eye Hospital NHS Foundation Trust, London, UK; ²Institute of Ophthalmology, University College London, London, UK; ³The National Hospital for Neurology and Neurosurgery, University College London Hospitals NHS Foundation Trust, London, UK; ⁴North Thames Genomic Laboratory Hub, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK; ⁵John van Geest Centre for Brain Repair and MRC Mitochondrial Biology Unit, Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK; ⁶Cambridge Eye Unit, Addenbrooke’s Hospital, Cambridge University Hospitals, Cambridge, UK

LHON spectrum disorder: new phenotypes and genotypes

Marco Battista¹, Leonardo Caporali², Enrico Borrelli¹, Giorgio Lari¹, Alice Galzignato³, Claudio Fiorini², Paolo Nucci⁴, Francesco Bandello¹, Maria Lucia Cascavilla¹, Valerio Carelli^2,5, Piero Barboni¹

¹San Raffaele Hospital, Italy; ²IRCCS Istituto delle Scienze Neurologiche di Bologna, UOC Clinica Neurologica (Bologna, Italy); ³Studio Oculistico d’Azeglio (Bologna, Italy); ⁴Department of Clinical Science and Community Health, University of Milan, (Milan, Italy); ⁵Unit of Neurology, Department of Biomedical and Neuromotor Sciences (DIBINEM), University of Bologna (Bologna, Italy)

Chronic asymmetric progressive external ophthalmoplegia without eyelid weakness

Jae Ho Jung

Seoul National University Hospital, Korea, Republic of (South Korea)

Bayesian inference enables discovery of functional effects of heteroplasmic mitochondrial mutations in the developing brain

Aidan Scott Marshall, Yue Nie, Nick.S Jones, Patrick.F Chinnery

Imperial College London, United Kingdom

Cell lineage-specific mitochondrial gene expression is established in the early embryo, prior to organ maturation

Stephen P. Burr^1,2, Florian Klimm^1,2,3, Angelos Glynos^1,2, Malwina Prater^1,2,4, James B. Stewart^5,6, Patrick F. Chinnery^1,2, Michele Frison^1,2

¹Department of Clinical Neurosciences, School of Clinical Medicine, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK; ²Medical Research Council Mitochondrial Biology Unit, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK; ³Novo Nordisk Research Centre Oxford, Innovation Building, University of Oxford, Old Road Campus, Oxford, UK; ⁴Functional Genomics Centre, Milner Therapeutics Institute, Jeffrey Cheah Biomedical Centre, Cambridge Biomedical Campus, Cambridge, UK; ⁵Max Planck Institute for Biology of Ageing, Cologne, Germany; ⁶Biosciences Institute, Faculty of Medical Sciences, Wellcome Centre for Mitochondrial Research, Newcastle University, Newcastle upon Tyne, UK

Identifying mitochondrial methyltransferases using unbiased proteome-ligand profiling

Alissa Wilhalm¹, David Moore¹, Florian Rosenberger¹, Anna Wedell², Christoph Freyer¹, Anna Wredenberg^1,2

¹Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden, Sweden; ²Centre of Inherited metabolic diseases, Karolinska University Hospital, Stockholm, Sweden

Engineering mitochondrial aminoacyl-tRNA synthetases as a tool to investigate mitochondrial protein synthesis

Christin A Albus, Ellyn N Willsher, Syeda Z Akthar, Robert N Lightowlers, Zofia MA Chrzanowska-Lightowlers

Newcastle University, United Kingdom

Short-read NGS for the screening of structural and copy number alterations in mtDNA as powerful diagnostic tool.

Christiane Neuhofer^1,2, Rossella Izzo³, Riccardo Berutti^1,2, Martin Pavlov², Eleonora Lamantea³, Elisabeth Graf¹, Costanza Lamperti³, Thomas Klopstock⁴, Holger Prokisch^1,2, Daniele Ghezzi^3,5, Andrea Legati³

¹Institute of Human Genetics, Klinikum rechts der Isar, School of Medicine, Technical University of Munich, (Munich, Germany); ²Institute of Neurogenomics, Helmholtz Zentrum München (Neuherberg, Germany); ³Fondazione IRCCS Istituto Neurologico Carlo Besta (Milan, Italy); ⁴Department of Neurology, Friedrich-Baur-Institute, LMU Hospital, Ludwig Maximilians University (Munich, Germany); ⁵Department of Pathophysiology and Transplantation, University of Milan (Milan, Italy)

Ethical dilemmas and diagnostic uplifts; primary mitochondrial disease the era of first line whole genome sequencing

William L. Macken^1,2, Rachel L. Horton^3,4, Michael G. Hanna^1,2, Anneke M. Lucassen^3,4, Robert D.S. Pitceathly^1,2

¹UCL Queen Square Institute of Neurology, United Kingdom; ²NHS Highly Specialised Service for Rare Mitochondrial Disorders, Queen Square Centre for Neuromuscular Diseases, The National Hospital for Neurology and Neurosurgery, London, UK.; ³Centre for Personalised Medicine, and Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK; ⁴Clinical Ethics, Law and Society, Faculty of Medicine, University of Southampton, Southampton, UK

Analysis of mitochondrial metabolism using 13C-labeled mass isotopologue analysis and mass spectrometry as a new approach for the diagnostics of mitochondrial disorders

Liesbeth T. Wintjes¹, Arno van Rooij¹, Sacha Hendriks¹, Coby M. Laarakkers¹, Richard J.T. Rodenburg^1,2

¹Department of Genetics, Translational Metabolic Laboratory, Radboudumc, Nijmegen, The Netherlands.; ²Department of Pediatrics, Radboud Centre for Mitochondrial Medicine, Radboudumc, Nijmegen, The Netherlands

Subcellular metabolomics: a pipeline for compartment-specific metabolic investigations in a mouse model of Leigh syndrome

Gunter van der Walt, Jason Elferink, Zander Lindeque, Shayne Mason, Roan Louw

North-West University, South Africa

High‐content screening for modulators of mitochondria‐ER contact sites and identification of their protein targets

Tomas Knedlik¹, Federica Dal Bello¹, Marta Giacomello^1,2

¹Department of Biology, University of Padova, Italy; ²Department of Biomedical Sciences, University of Padova, Italy

A novel Approach to assess the pathogenicity of mtDNA Variants

Omar Tutakhel, Frans van den Brandt, Kai Francke, Hatice Nur Ozhan, Frans Maas, Daan Panneman, Liesbeth Wintjes, Roel Smeets, Dirk Lefeber, Bert van den Heuvel, Richard J. Rodenburg

RadboudUMC, Translational Metabolic Laboratory, Dept of Pediatrics, Nijmegen, The Netherlands

At the core of the apoptotic foci

Hector Flores-Romero, Aida Peña Blanco, Lisa Hohorst, Jonas Aufdermauer, Shashank Dadsena, Cristiana Zollo, Rodrigo Cuevas-Arenas, Ana J. Garcia-Saez.

CECAD, Germany

Clinical utility of ultra-rapid genomic testing for infants and children with a suspected mitochondrial disorder

John Christodoulou^1,2,3,4, Sophie Bouffler⁵, Chirag Patel⁶, Sarah Sandaradura^4,7, Meredith Wilson^4,7,8, Jason Pinner^8,9, Matthew Hunter^10,11, Christopher Barnett^12,13,14, Mathew Wallis^15,16, Benjamin Kamien¹⁷, Tiong Tan^1,2,3, Mary-Louise Freckmann¹⁸, Karin Kassahn^13,14, Tony Roscioli^19,20,21, Alison Compton^1,2,3, David Thorburn^1,2,3, Sebastian Lunke^1,2,3,5, Zornitza Stark^1,2,3,5

¹Murdoch Children's Research Institute, Melbourne, Australia; ²University of Melbourne, Melbourne, Australia; ³Victorian Clinical Genetics Services, Murdoch Children's Research Institute, Melbourne, Australia; ⁴University of Sydney, Sydney, Australia; ⁵Australian Genomics, Melbourne, Australia; ⁶Genetic Health Queensland, Royal Brisbane and Women’s Hospital, Brisbane, Australia; ⁷Sydney Children’s Hospitals Network – Westmead, Sydney, Australia; ⁸Sydney Children’s Hospitals Network – Randwick, Sydney, Australia; ⁹University of New South Wales, Sydney, Australia; ¹⁰Monash Genetics, Monash Health, Melbourne, Australia; ¹¹Department of Paediatrics, Monash University, Melbourne, Australia; ¹²Paediatric and Reproductive Genetics Unit, Women’s and Children’s Hospital, North Adelaide, Australia; ¹³Adelaide Medical School, The University of Adelaide, Adelaide, Australia; ¹⁴Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, Australia; ¹⁵Tasmanian Clinical Genetics Service, Tasmanian Health Service, Hobart, Australia; ¹⁶School of Medicine and Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia; ¹⁷Genetic Services of Western Australia, Perth, Australia; ¹⁸Department of Clinical Genetics, The Canberra Hospital, Canberra, Australia; ¹⁹Centre for Clinical Genetics, Sydney Children's Hospital, Sydney, NSW, Australia; ²⁰Randwick Genomics Laboratory, NSW Health Pathology, Prince of Wales Hospital, Sydney, Australia; ²¹Neuroscience Research Australia (NeuRA) and Prince of Wales Clinical School, UNSW, Sydney, Australia

Contribution of RNA-seq to diagnosis and determination of functional impact of candidate variants in 45 patients suspected of mitochondrial disease.

Gerard Muñoz-Pujol¹, Olatz Ugarteburu¹, Blai Morales¹, Judit García-Villoria¹, Laura Gort¹, Vicente A. Yépez², Julien Gagneur², Mirjana Gusic², Holger Prokisch², Marc Dabad³, Anna Esteve-Codina³, Antonia Ribes¹, Frederic Tort¹

¹Secció d'Errors Congènits del Metabolisme-IBC, Servei de Bioquímica i Genètica Molecular, Hospital Clínic de Barcelona, IDIBAPS, CIBERER, Barcelona, Spain; ²Institute of Human Genetics, School of Medicine, Technical University of Munich, Munich, Germany; ³CNAG-CRG, Centre for Genomic Regulation, Barcelona Institute of Science and Technology and Universitat Pompeu Fabra, Barcelona, Spain

Dynamics of NAD and glutathione metabolites in blood during aging, in disease and upon supplementation with NAD-booster

Liliya Euro^1,2, Kimmo Haimilahti¹, Sonja Jansson^1,2, Jana Buzkova^1,2, Anu Suomalainen-Wartiovaara^1,3

¹University of Helsinki, Finland; ²NADMED Ltd, Finland; ³HUS Diagnostic Centre, Finland

Enzymatic assay for UDP-GlcNAc and its application in the parallel assessment of substrate availability and protein O-GlcNAcylation

Marc Sunden^1,2, Divya Upadhyay^1,2, Rishi Banerjee^1,2, Nina Sipari³, Vineta Fellman^1,2,4, Jukka Kallijarvi^1,2, Janne Purhonen^1,2

¹Folkhalsan Research Center, Finland; ²Stem Cells and Metabolism Research Program, Faculty of Medicine, University of Helsinki, Finland; ³Viikki Metabolomics Unit, University of Helsinki, Finland; ⁴Children’s Hospital, Helsinki University Hospital, Finland

Genetic testing for mitochondrial disease: The United Kingdom best practice guidelines

Eleni Mavraki^1,2, Robyn Labrum³, Kate Sergeant⁴, Charlotte L Alston^1,2, Cathy Woodward³, Conrad Smith⁴, Charlotte V Y Knowles^1,2, Yogen Patel³, Philip Hodsdon⁴, Jack P Baines^1,2, Emma L Blakely^1,2, James Polke³, Robert W Taylor^1,2, Carl Fratter⁴

¹NHS Highly Specialised Service for Rare Mitochondrial Disorders, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK; ²Wellcome Centre for Mitochondrial Research, Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK; ³Neurogenetics Unit, National Hospital for Neurology and Neurosurgery, Queen Square, London, UK; ⁴Oxford Genetics Laboratories, Oxford University Hospitals NHS Foundation Trust, Oxford, UK

Identification of uncharacterized genes involved in mitochondrial OXPHOS function and integrity.

Marcos Javier Zamora Dorta, Sara Laine Menéndez, David Abia Holgado, Eduardo Balsa Martínez

Centro de Biología Molecular Severo Ochoa, Spain

Investigating the role of mito-nuclear genetic variation in determining m.3243A>G variant heteroplasmy

Alia K. Saeed¹, Róisín M. Boggan¹, Imogen G. Franklin¹, Charlotte L. Alston^1,2, Emma L. Blakely^1,2, Boriana Büchner³, Enrico Bugiardini⁴, Kevin Colclough⁵, Gráinne S. Gorman¹, Catherine Feeney¹, Michael G. Hanna⁴, Andrew T. Hattersley⁶, Thomas Klopstock^3,7,8, Cornelia Kornblum⁹, Michelangelo Mancuso¹⁰, Yi Shiau Ng¹, Kashyap A. Patel⁶, Robert D. S. Pitceathly⁴, Chiara Pizzamiglio⁴, Holger Prokisch^11,12, Jochen Schäfer¹³, Andrew M. Schaefer¹, Maggie H. Shepherd⁶, Annemarie Thaele¹⁴, Doug M. Turnbull¹, Cathy E. Woodward¹⁵, Heather J. Cordell¹⁶, Robert McFarland¹, Robert W. Taylor^1,2, Gavin H. Hudson¹, Sarah J. Pickett¹

¹Wellcome Centre for Mitochondrial Research and Institute for Translational and Clinical Research, Newcastle University, Newcastle upon Tyne, UK; ²NHS Highly Specialised Mitochondrial Diagnostic Laboratory, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK; ³Department of Neurology, Friedrich-Baur-Institute, University Hospital of the Ludwig-Maximilians-University (LMU Klinikum), Munich, Germany; ⁴Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology and The National Hospital for Neurology and Neurosurgery, London, UK; ⁵Exeter Genomics Laboratory, Royal Devon and Exeter NHS Foundation Trust, Exeter, UK; ⁶Institute of Biomedical and Clinical Science, University of Exeter Medical School, Exeter, UK; ⁷Munich Cluster for Systems Neurology (SyNergy), Munich, Germany; ⁸German Center for Neurodegenerative Diseases (DZNE), Munich, Germany; ⁹Department of Neurology, University Hospital Bonn, Bonn, Germany; ¹⁰Neurological Institute of Pisa, Italy; ¹¹Institute of Human Genetics, School of Medicine, Technische Universität München, München, Germany; ¹²Institute of Neurogenomics, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany; ¹³Department of Neurology, Universitätsklinikum Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany; ¹⁴Department of Neurology, Martin-Luther-University Halle-Wittenberg, 06120 Halle (Saale), Germany; ¹⁵Neurogenetics Unit, The National Hospital for Neurology and Neurosurgery, London, UK; ¹⁶Population Health Sciences Institute, Newcastle University, UK

Mitochondrial DNA depletion and deletion analysis using smMIPs

Maaike Brink^1,2, Sanne van Kraaij^1,2, Sanne Sweegers^1,2, Roel Smeets^1,2, Richard Rodenburg^1,2,3

¹Translational Metabolic Laboratory, Radboudumc, Nijmegen, The Netherlands; ²Radboud Center for Mitochondrial Medicine (RCMM), Radboudumc, Nijmegen, The Netherlands; ³Department of Pediatrics, Radboudumc, Nijmegen, The Netherlands

Ultrastructure of mitochondria in 3D from volume electron microscopy

Chenhao Wang^1,2, Leif Østergaard^3,4, Stine Hasselholt^3,4, Jon Sporring^1,2

¹Department of Computer Science, University of Copenhagen, Denmark; ²Center for Quantification of Imaging Data from MAX IV; ³Department of Clinical Medicine, Aarhus University, Denmark; ⁴Center of Functionally Integrative Neuroscience

Visualizing ATP dynamics in living mice

Masamichi Yamamoto, Jungmi Choi

National Cerebral and Cardiovascular Center, Japan

Applying sodium carbonate extraction mass spectrometry to investigate defects in the mitochondrial respiratory chain

David Robert Lindsay Robinson¹, Daniella Hock¹, Linden Muellner-Wong^1,2, Roopingsam Kugapreethan¹, Boris Reljic^1,3, Elliot Surgenor^3,4, Carlos Rodrigues^1,5, Nikeisha Caruana^1,6, David Stroud^1,2

¹Department of Biochemistry and Pharmacology, University of Melbourne, Melbourne, Australia; ²Murdoch Children's Research Institute, The Royal Children's Hospital, Melbourne, Australia; ³Department of Biochemistry and Molecular Biology, Monash University, Melbourne,Australia; ⁴The Walter and Eliza Hall Institute of Medical Research, Melbourne, Australia; ⁵Baker Heart and Diabetes Institute, Melbourne, Australia; ⁶Institute for Health and Sport (IHES), Victoria University, Melbourne, Australia

Global analysis of protein methylation in the mitochondrial compartment of cancer cells: a proteomic approach

Ayusi Mondal^1,2, Alessandro Vai^1,2, Silvia Pedretti^1,3, Marianna Maniaci¹, Nico Mitro^1,3, Tiziana Bonaldi^1,4

¹Department of Experimental Oncology, European Institute of Oncology (IEO), IRCCS Milano, Italy; ²European School of Molecular Medicine (SEMM); ³Department of Pharmacological and Biomolecular Sciences, University of Milan, Italy; ⁴Department of Oncology and Hematology-Oncology, University of Milan, Milan, Italy

MITODIAG : The French network of diagnostic laboratories for mitochondrial diseases

Cécile Rouzier¹, Emmanuelle Pion², Céline Bris³, Patrizia Bonneau³, Valérie Desquiret³, Jean-Paul Bonnefont⁴, Pauline Gaignard⁵, Elise Lebigot⁵, Samira Ait-El-Mkadem Saadi¹, Sylvie Bannwarth¹, Konstantina Fragaki¹, Benoit Rucheton⁶, Marie-Laure Martin-Negrier⁷, Aurélien Trimouille⁷, Cécile Acquaviva-Bourdain⁸, Cécile Pagan⁸, Anne-Sophie Lebre⁹, Gaelle Hardy¹⁰, Stéphane Allouche¹¹, Pascal Reynier³, Mireille Cossee¹², Sharam Attarian¹³, Véronique Paquis-Flucklinger¹, Vincent Procaccio³

¹Service de génétique médicale, Centre de référence des maladies mitochondriales, CHU Nice, Université Cote d’Azur, CNRS, INSERM, IRCAN, Nice; ²Filnemus, laboratoire de génétique moléculaire, CHU Montpellier; ³Service de génétique, Institut de Biologie en santé, Centre National de référence Maladies Neurodégénératives et Mitochondriales, CHU Angers; ⁴Fédération de génétique médicale, Service de génétique moléculaire du GH Necker-enfants malades, Hôpital Necker-Enfants Malades, Paris; ⁵Laboratoire de Biochimie, Pôle BPP, CHU Paris Sud, Hôpital Bicêtre-le Kremlin Bicêtre, Paris; ⁶Pôle de biologie et pathologie, CHU Bordeaux; ⁷Unité fonctionnelle d’histologie moléculaire, Service de pathologie, CHU Bordeaux-GU Pellegrin, Bordeaux; ⁸Service de biochimie et biologie moléculaire Grand Est, UM Maladies Héréditaires du Métabolisme, Centre de biologie et pathologie Est, CHU Lyon HCL, GH Est, Lyon; ⁹Laboratoire de génétique, Hématologie et Immunologie, CHU Reims; ¹⁰Laboratoire de génétique moléculaire: maladies héréditaires et oncologie, Service de biochimie, biologie moléculaire et toxicologie environnementale, CHU Grenoble et des Alpes, Institut de biologie et pathologie, Grenoble; ¹¹Service de biochimie, Pôle Biologie, Pharmacie et Hygiène, CHU Caen, Hôpital de la Côte de Nacre, Caen; ¹²Laboratoire de Génétique Moléculaire, CHU Montpellier, PhyMedExp, Université de Montpellier, INSERM, CNRS, Montpellier; ¹³Filnemus, Assistance Publique Hôpitaux Marseille, Service de Neurologie, Hôpital La Timone, Marseille

Multiomic mitochondrial and metabolic screening reveals potential biomarkers in inclusion body myositis

Judith Cantó Santos^1,2,3, Laura Valls Roca^1,2,3, Ester Tobías^1,2,3, Clara Oliva⁴, Francesc Josep García-García^1,2,3, Mariona Guitart Mampel^1,2,3, Félix Andújar Sánchez^1,2,3, Laia Farré Tarrats^1,2,3, Joan Padrosa^1,2,3, Raquel Aránega^1,2,3, Pedro J. Moreno Lozano^1,2,3, José César Milisenda^1,2,3, Rafael Artuch⁴, Josep M. Grau Junyent^1,2,3, Glòria Garrabou^1,2,3

¹Hereditary Metabolic Diseases and Muscular Diseases Lab, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS) and Faculty of Medicine and Health Sciences, University of Barcelona, Barcelona, Spain; ²Department of Internal Medicine, Hospital Clinic of Barcelona, Barcelona, Spain; ³CIBERER— Spanish Biomedical Research Centre in Rare Diseases, Madrid, Spain; ⁴Department of Clinical Biochemistry, Institut de Recerca Sant Joan de Déu; Esplugues de Llobregat, Barcelona, Spain

Network analysis of protein-protein interactions identifies intermediate filaments as a novel mitochondrial dynamics related structure

Irene M.G.M. Hemel, Carlijn Steen, Michiel Adriaens, Mike Gerards

Maastricht Centre for Systems Biology (MaCSBio), Maastricht University, The Netherlands

Establishment of mitochondrial proline metabolic disorder patient-derived induced pluripotent stem cells as a new cellular model for aging associated disease study

Yu-Wen Huang, Tsung-Han Lee, Dar-Shong Lin

Mackay Memorial Hospital, Taiwan

Mitochondrial disorders unraveled by NGS technologies

Yulia Itkis¹, Tatiana Krylova¹, Natalia Pechatnikova², Ekaterina Zakharova¹

¹Research centre for medical genetics, Russian Federation; ²Morozov's Moscow City Child Clinical Hospital, Moscow, Russia

Incorporation of exogenous mitochondria into cells and their effects on the cells

Hisashi Ohta^1,2, Yosif El-Darawish^1,2, Masae Takeda^1,2, Takahiro Shibata^1,2, Keiichi Sakakibara^1,2, Rick Tsai¹, Masashi Suganuma¹

¹LUCA Science, Japan; ²Biological Drug Development based DDS technology, Hokkaido Univ.

Mitochondrial encapsulation technology for mitochondrial transplantation therapy

Yonghui Wang^1,2, Oliver Koivisto^1,2, Chang Liu^1,2, Hongbo Zhang^1,2

¹Pharmaceutical Sciences Laboratory, Åbo Akademi University, Finland; ²Turku Bioscience Centre, University of Turku and Åbo Akademi University

Inhibition of mtDNA transcription in liver reverses diet-induced obesity and hepatosteatosis in the mouse

Shan Jiang¹, Taolin Yuan¹, Laura Kremer¹, Florian Schober², Fynn Hansen², Diana Rubalcava-Gracia¹, Mara Mennuni¹, Roberta Filograna¹, David Alsina¹, Jelena Misic¹, Patrick Giavalisco³, Matthias Mann², Nils-Göran Larsson¹

¹Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Sweden; ²Max-Planck Institute of Biochemistry, Martinsried, Germany; ³Metabolomics Core Facility, Max Planck Institute for Biology of Ageing, Cologne, Germany

The mitochondrial phenotype of Leigh syndrome SURF1 mutant patient-derived fibroblasts and recovery using small molecules

Rachel M Hughes¹, Laura M Ellis¹, Naomi Hartopp¹, Emily Mossman¹, Gauri Bhosale², Annachiara Gandini², Alessandro Pristera², Christopher Doe², Scott P Allen¹, Oliver Bandmann¹, Laura Ferraiuolo¹, Pamela J Shaw¹, Heather J Mortiboys¹

¹Sheffield Institute for Translational Neuroscience, University of Sheffield, United Kingdom; ²Nanna Therapeutics, Cambridge, United Kingdom

Knockout of Complex III subunit Uqcrh decreases respiratory capacity and impairs cardiac contractile function independent of mitochondrial ROS production

Nadine Spielmann^1,9, Christina Schenkl^2,9, Tímea Komlódi^3,4, Patricia da Silva-Buttkus¹, Estelle Heyne², Jana Rohde¹, Oana V. Amarie¹, Birgit Rathkolb^1,5,6, Erich Gnaiger³, Torsten Doenst², Helmut Fuchs¹, Valérie Gailus-Durner¹, Martin Hrabě de Angelis^1,6,7,9, Marten Szibor^2,8,9

¹Institute of Experimental Genetics, German Mouse Clinic, Helmholtz Center Munich, German Research Center for Environmental Health, Germany; ²Jena University Hospital, Friedrich-Schiller University of Jena, Germany; ³Oroboros Instruments, Innsbruck, Austria; ⁴Department of Biochemistry and Molecular Biology, Semmelweis University Budapest, Hungary; ⁵Institute of Molecular Animal Breeding and Biotechnology, Gene Center, Ludwig-Maximilians-Universität München, Germany; ⁶Member of German Center for Diabetes Research (DZD), Germany; ⁷Chair of Experimental Genetics Experimental Genetics, School of Life Science Weihenstephan, Technische Universität München, Germany; ⁸BioMediTech & Tampere University Hospital, Faculty of Medicine and Health Technology, Tampere University, Finland; ⁹Contributed equally

Molecular insights into the role of complex V deficiency in heart development, function and disease

Mario Pavez-Giani^1,2, Karen an der Brügge¹, Till Stephan⁴, Felix Lange⁴, Jakob Fell^1,2, Alessandro Prigione³, Stefan Jakobs⁴, Lukas Cyganek^1,2

¹Stem Cell Unit, Clinic for Cardiology and Pneumology, University Medical Center Göttingen, Göttingen, Germany; ²German Center for Cardiovascular Research (DZHK), partner site Göttingen, Germany; ³Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, Heinrich Heine University, Düsseldorf, Germany; ⁴Research Group Mitochondrial Structure and Dynamics, Department of NanoBiophotonics, Max Planck Institute for Multidisciplinary Sciences, Göttingen, Germany

Establishing mammalian cell models for research of NDUFS1-associated diseases

Lena Jentsch¹, Laura Schröter², Natascia Ventura^1,2

¹Heinrich Heine University Düsseldorf, Germany; ²IUF- Leibniz Research Institute for Environmental Medicine

A neuronal model of mtDNA disease reveals a compensatory reprogramming of the electron transfer chain during neuronal maturation

Shane Thomas Bell¹, Rebeca Acín-Pérez², Iffath Ghouri¹, Orian Shirihai², Robert Lightowlers¹, Oliver Russell¹

¹Wellcome Centre for Mitochondrial Research, Newcastle University, United Kingdom; ²Metabolism Theme, David Geffen School of Medicine, University of California, Los Angeles (UCLA), CA, USA

Development of mutant mtDNA-targeted TALENs and their application to iPSC-based mitochondrial disease model.

Naoki Yahata, Ryuji Hata

Fujita Health University School of Medicine, Japan

Deficits in mitochondrial oxidative phosphorylation enhance SARS-CoV-2 replication

Yentli E. Soto Albrecht^1,2, Ryan Morrow¹, Arnold Olali¹, Devin Kenney^3,4, Prasanth Potluri¹, Deborah Murdock¹, Alessia Angelin¹, Florian Douam^3,4, Douglas C. Wallace^1,2

¹Children's Hospital of Philadelphia, USA; ²University of Pennsylvania, USA; ³Boston University, USA; ⁴National Emerging Infectious Diseases Laboratories, Boston, USA

Metabolic analysis of mouse sarcopenic skeletal muscle identifies new strategies to increase lifespan in C. elegans

Steffi M Jonk¹, Vicki Chrysostomou², James R Tribble¹, Jonathan G Crowston^2,3,4, Peter Swoboda¹, Pete A Williams¹

¹Karolinska Institutet, Sweden; ²Centre for Vision Research Duke-NUS & Singapore National Eye Centre, Singapore; ³Save Sight Institute at the University of Sydney, Australia; ⁴The University of Melbourne, Australia.

Delineating mitochondrial pathology using a genome-wide CRISPR/Cas9 activation screen

Yasmin Tang¹, Angela Pyle¹, Krutik Patel¹, Robert McFarland^1,2, Robert W. Taylor^1,2, Monika Oláhová¹

¹Wellcome Centre for Mitochondrial Research, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, NE2 4HH; ²NHS Highly Specialised Rare Mitochondrial Disorders Service, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, NE2 4HH

Cancer and cellular senescence – two complementary stress models to study turnover and quality control of mitochondrial respiratory complexes.

Hanna Salmonowicz^1,2, Mahdi S Mahdi^1,2, Deepti Mudartha¹, Szymon Gorgon^1,2, Stadnik Dorota^1,2, Remigiusz Serwa^1,2, Karolina Szczepanowska^1,2

¹IMol Polish Academy of Sciences, Poland; ²ReMedy International Research Agenda

Proteotoxicity induced mitochondrial integrated stress response in CHCHD10-linked adult-onset spinal muscular atrophy

Sandra Harjuhaahto¹, Bowen Hu¹, Jouni Kvist¹, Fuping Zhang^2,3, Tomas Zárybnický², Kimmo Haimilahti⁴, Eija Pirinen⁴, Emilia Kuuluvainen², Ville Hietakangas^2,5, Satu Kuure^2,3, Manu Jokela^6,7, Emil Ylikallio^1,8, Henna Tyynismaa¹

¹Stem Cells and Metabolism Research Program, Faculty of Medicine, University of Helsinki; ²Helsinki Institute of Life Science HiLIFE, University of Helsinki; ³Genetically Modified Rodents Unit, Laboratory Animal Center, University of Helsinki; ⁴Research Program for Clinical and Molecular Metabolism, Faculty of Medicine, University of Helsinki; ⁵Faculty of Biological and Environmental Sciences, University of Helsinki; ⁶Division of Clinical Neurosciences, Turku University Hospital and University of Turku; ⁷Department of Neurology, Neuromuscular Research Center, Tampere University Hospital and Tampere University; ⁸Clinical Neurosciences, Neurology, Helsinki University Hospital

Protective role of mitochondrial stress signaling and fragmentation in mitochondrial cardiomyopathy

Sofia Ahola, Lilli Pazurek, Fiona Mayer, Hendrik Nolte, Thomas Langer

Max Planck Institute for Biology of Ageing, Cologne, Germany

The Italian reappraisal on the most frequent genetic defects in hereditary optic neuropathies and the global top 10

Claudio Fiorini¹, Danara Ormanbekova¹, Flavia Palombo¹, Alberto Pasti¹, Michele Carbonelli², Giulia Amore², Martina Romagnoli², Pietro D'Agati², Maria Lucia Valentino^1,2, Piero Barboni³, Maria Lucia Cascavilla³, Anna Maria De Negri⁴, Federico Sadun⁵, Arturo Carta⁶, Francesco Testa⁷, Vittoria Petruzzella⁸, Silvana Guerriero⁸, Stefania Bianchi Marzoli⁹, Valerio Carelli^1,2, Chiara La Morgia^1,2, Leonardo Caporali²

¹IRCCS Istituto di Scienze Neurologiche di Bologna, Programma di Neurogenetica, Bologna, Italy; ²Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy; ³Department of Ophthalmology, University Vita-Salute, IRCCS Ospedale San Raffaele, Milan, Italy; ⁴Azienda Ospedaliera San Camillo-Forlanini, Rome, Italy; ⁵Ospedale Oftalmico Roma, Rome, Italy; ⁶Ophthalmology Unit, University Hospital of Parma, Parma, Italy; ⁷Eye Clinic, Multidisciplinary Department of Medical, Surgical and Dental Sciences, University of Campania Luigi Vanvitelli, Naples, Italy; ⁸Department of Translational Biomedicine and Neuroscience (DiBraiN), University of Bari Aldo Moro, Bari, Italy; ⁹Neuroophthalmology Service and Ocular Electrophysiology laboratory, Department of Ophthalmology, IRCCS Istituto Auxologico Italiano, Milan, Italy

Aberrant ER-mitochondria communication in human mitochondrial disease

Eric A. Schon¹, Khushbu Kabra¹, Patricia Morcillo¹, Delfina Larrea¹, Estela Area-Gomez^1,2, Orhan Akman¹

¹Columbia University, USA; ²Centro de Investigaciones Biológicas “Margarita Salas”, Madrid, Spain

Mitochondrial F0F1-ATP synthase conditions the responsiveness of mitochondria to fission

Charlène Lhuissier¹, Julien Cassereau³, Valérie Desquiret-Dumas², Guy Lenaers¹, Naïg Gueguen², Arnaud Chevrollier¹

¹MITOVASC Université d'Angers, France; ²Departments of Biochemistry and Molecular Biology, University Hospital Angers, Angers, France; ³Laboratoire de Neurobiologie et Neuropathologie, Centre Hospitalier Universitaire d'Angers, Angers, France

A screening method for mitochondrial disorders by high-resolution respirometry

Kersti Tepp¹, Kairit Joost², Natalja Timohhina¹, Marju Puurand¹, Tuuli Kaambre¹

¹National Institute of Chemical Physics and Biophysics, Estonia; ²Clinic of Internal Medicine, East-Tallinn Central Hospital, Estonia

AK3, adenylate kinase isozyme 3, is a new gene associated with PEO and multiple mtDNA deletions

Alessia Nasca¹, Andrea Legati¹, Teresa Ciavattini¹, Nadia Zanetti¹, Eleonora Lamantea¹, Javier Ramón², Ramon Martí², Maria Antonietta Maioli³, Costanza Lamperti¹, Holger Prokisch^4,5, Daniele Ghezzi^1,6

¹Fondazione IRCCS Istituto Neurologico Besta, Italy; ²Vall d'Hebron Research Institute, Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Autonomous University of Barcelona, Barcelona, Spain; ³Centro Sclerosi Multipla, P.O. Binaghi, ASL Cagliari, Italy; ⁴Technical University of Munich, School of Medicine, Institute of Human Genetics, 81675 Munich, Germany; ⁵Institute of Neurogenomics, Helmholtz Zentrum München, 85764 Munich, Germany; ⁶Department of Pathophysiology and Transplantation (DEPT), University of Milan, Italy

Heterozygous missense variants in NUTF2 (nuclear transport factor 2) gene, mapping at the OPA8 locus, cause Dominant Optic Atrophy

Agnese Macaluso¹, Alessandra Maresca¹, Concetta Valentina Tropeano¹, Maria Antonietta Capristo¹, Flavia Palombo¹, Leonardo Caporali¹, Claudio Fiorini¹, Danara Ormanbekova¹, Chiara La Morgia¹, Piero Barboni^2,3, Cristina Villaverde^4,5, Carmen Ayuso^4,5, Maria Esther Gallardo^6,5, Majida Charif⁷, Sylvie Gerber⁸, Patrizia Amati-Bonneau⁷, Guy Lanaers^7,9, Jean-Michel Rozet⁷, Bernd Wissinger¹⁰, Valerio Carelli^1,11, Valentina Del Dotto¹¹

¹IRCCS - Istituto delle Scienze Neurologiche di Bologna, Programma di Neurogenetica - Bologna (Italy); ²Studio Oculistico d'Azeglio - Bologna (Italy); ³Department of Ophthalmology, University Vita-Salute, IRCCS Ospedale San Raffaele - Milano (Italy); ⁴Department of Genetics & Genomics, Instituto de Investigación Sanitaria - Fundación Jiménez Díaz University Hospital - Universidad Autónoma de Madrid (IIS-FJD-UAM) - Madrid (Spain); ⁵Center for Biomedical Network Research on Rare Diseases (CIBERER), ISCIII - Madrid (Spain); ⁶Grupo de investigación traslacional con células iPS, Instituto de Investigación Sanitaria Hospital 12 de Octubre (i+12), Madrid, Spain; Centro de Investigación Biomédica en Red (CIBERER) - Madrid (Spain); ⁷Université d’Angers, MitoLab team, UMR CNRS 6015 - INSERM U1083, Unité MitoVasc - Angers (France); ⁸Laboratory of Genetics in Ophthalmology (LGO), INSERM UMR1163, Institute of Genetic Diseases, Imagine and Paris Descartes University - Paris (France); ⁹Departments of Biochemistry and Genetics, University Hospital Angers - Angers (France); ¹⁰Molecular Genetics Laboratory, Institute for Ophthalmic Research, Center for Ophthalmology, University of Tübingen, Tübingen, Germany; ¹¹Depart. of Biomedical and NeuroMotor Sciences (DIBINEM), University of Bologna - Bologna (Italy)

Southern African paediatric patients with King Denborough syndrome are exclusively associated with an autosomal recessive STAC3 variant: is this a highly prevalent secondary mitochondrial disease in this African population?

Francois Hendrikus van der Westhuizen¹, Maryke Schoonen¹, Michelle Bisschoff¹, Ronel Human², Elsa Lubbe², Malebo Nonyane², Armand Vorster¹, Karin Terburgh¹, Robert McFarland³, Robert Taylor³, Mahmoud Fassad³, Krutik Patel³, Wilson Lindsay⁴, Michael Hanna⁴, Jana Vandrovcova⁴, The ICGNMD Consortium⁵, Izelle Smuts²

¹Human Metabolomics, North-West University, Potchefstroom, South Africa; ²Department of Paediatrics, Steve Biko Academic Hospital, University of Pretoria, Pretoria, South Africa; ³Wellcome Centre for Mitochondrial Research, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, United Kingdom; ⁴Centre for Neuromuscular Diseases, UCL Queen Square Institute of Neurology, London, United Kingdom; ⁵https://www.ucl.ac.uk/genomic-medicine-neuromuscular-diseases/global-contributor-list

Long-read NGS for detection of mitochondrial DNA large-scale deletions and complex rearrangements

Chiara Frascarelli¹, Nadia Zanetti¹, Alessia Nasca¹, Rossella Izzo¹, Costanza Lamperti¹, Eleonora Lamantea¹, Daniele Ghezzi^1,2, Andrea Legati¹

¹Fondazione IRCCS Istituto Neurologico Carlo Besta (Milan, Italy); ²University of Milan (Milan, Italy)

Quantification of all 12 canonical ribonucleotides by real-time fluorogenic in vitro transcription

Janne Purhonen^1,2, Jukka Kallijarvi^1,2

¹Folkhalsan Research Center, Finland; ²Stem Cells and Metabolism Research Program, Faculty of Medicine, University of Helsinki

Quantifying mitochondrial proteome remodeling during macrophage polarization

Joan Blanco-Fernandez, Manfredo Quadroni, Alexis A. Jourdain

University of Lausanne, Switzerland

Mitochondrial injury in warm ischemia studied by high-resolution respirometry

Alba Timón-Gómez, Luiza HD Cardoso, Eleonora Baglivo, Carolina Doerrier, Erich Gnaiger

Oroboros Instruments GmBH, Austria

MitoCluster: integrated phenotyping and mouse model generation platform for mitochondrial disease and dysfunction

Micol Falabella¹, Patrick F. Chinnery², Laura C. Greaves³, Michael G. Hanna^1,4, Thomas M. Keane⁵, Robert McFarland³, Michal Minczuk², Owen J. Sansom^6,7, James B. Stewart³, Michelle Stewart⁸, Lydia Teboul⁸, Keira Turner², Jelle van den Ameele², Carlo Viscomi⁹, Sara Wells⁸, Alexander J. Whitworth², Robert D. S. Pitceathly^1,4

¹Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, London, UK; ²Medical Research Council Mitochondrial Biology Unit, University of Cambridge, Cambridge UK; ³Wellcome Centre for Mitochondrial Research, Faculty of Medical Sciences, Newcastle University, UK; ⁴NHS Highly Specialised Service for Rare Mitochondrial Disorders, Queen Square Centre for Neuromuscular Diseases, The National Hospital for Neurology and Neurosurgery, London, UK; ⁵European Molecular Biology Laboratory, European Bioinformatics Institute, Wellcome Genome Campus, Hinxton, UK; ⁶Cancer Research UK Beatson Institute, Glasgow, UK; ⁷Institute of Cancer Sciences, University of Glasgow, Glasgow, UK; ⁸Mary Lyon Centre MRC Harwell, UK; ⁹University of Padua, Italy

Decoding the regulatory principles of mitochondrial DNA: packaging, expression, and impact on cellular metabolism

L. Stirling Churchman

Harvard Medical School, United States of America

Mechanisms of mitochondrial RNA biogenesis in health and disease

Hauke Hillen^1,2

¹Department of Cellular Biochemistry, University Medical Center Göttingen, Germany; ²Research Group Structure and Function of Molecular Machines, Max-Planck-Institute for Multidisciplinary Sciences Göttingen, Germany

Disruption of mitochondrial function induces cell lineage-specific compensatory transcriptional responses during early embryonic development

Stephen P. Burr^1,2, Florian Klimm^1,2,3, Angelos Glynos^1,2, Malwina Prater^1,2,4, Maria Falkenberg⁵, Michal Minczuk², James B. Stewart^6,7, Patrick F Chinnery^1,2

¹Department of Clinical Neurosciences, School of Clinical Medicine, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK; ²Medical Research Council Mitochondrial Biology Unit, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK; ³Novo Nordisk Research Centre Oxford, Innovation Building, University of Oxford, Old Road Campus, Oxford, UK; ⁴Functional Genomics Centre, Milner Therapeutics Institute, Jeffrey Cheah Biomedical Centre, Cambridge Biomedical Campus, Cambridge, UK; ⁵Department of Medical Biochemistry and Cell Biology, University of Gothenburg, PO Box 440, Gothenburg 405 30, Sweden; ⁶Max Planck Institute for Biology of Ageing, Cologne, Germany; ⁷Biosciences Institute, Faculty of Medical Sciences, Wellcome Centre for Mitochondrial Research, Newcastle University, Newcastle upon Tyne, UK

Single-cell multi-omics reveals dynamics of purifying selection of pathogenic mitochondrial DNA across human immune cells

Caleb A. Lareau^1,2,3,4,5, Sonia M. Dubois⁵, Frank A. Buquicchio¹, Yu-Hsin Hsieh^6,7, Kopal Garg^4,5, Pauline Kautz^6,7,8, Lena Nitsch^6,7,9, Samantha D. Praktiknjo^6,7, Patrick Maschmeyer^6,7, Jeffrey M. Verboon^4,5, Jacob C. Gutierrez¹, Yajie Yin¹, Evgenij Fiskin⁴, Wendy Luo⁴, Eleni Mimitou^10,17, Christoph Muus^4,11, Rhea Malhotra⁴, Sumit Parikh¹², Mark D. Fleming¹³, Lena Oevermann¹⁴, Johannes Schulte¹⁴, Cornelia Eckert¹⁴, Anshul Kundaje^3,15, Peter Smibert^10,18, Ansuman T. Satpathy^1,2, Aviv Regev^4,16,19, Vijay Sankaran^4,5, Suneet Agarwal⁵, Leif S. Ludwig^4,5,6,7

¹Department of Pathology, Stanford University, Stanford, CA 94305, USA; ²Parker Institute of Cancer Immunotherapy, San Francisco, CA 94129, USA; ³Department of Genetics, Stanford University, Stanford, CA 94305, USA; ⁴Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; ⁵Division of Hematology / Oncology, Boston Children’s Hospital and Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02115, USA; ⁶Berlin Institute of Health at Charité – Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany; ⁷Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin Institute for Medical Systems Biology (BIMSB), 10115 Berlin, Germany; ⁸Institute of Biotechnology, Technische Universität Berlin, Berlin, Germany; ⁹Department of Biology, Chemistry, Pharmacy, Freie Universität Berlin, Berlin, Germany; ¹⁰Technology Innovation Lab, New York Genome Center, New York, NY 10013, USA; ¹¹Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02134, USA; ¹²Center for Pediatric Neurosciences, Mitochondrial Medicine, Cleveland Clinic, Cleveland, OH 44195, USA; ¹³Department of Pathology, Boston Children’s Hospital, Harvard Medical School, Boston, MA 02115, USA; ¹⁴Department of Pediatric Oncology, Charité-Universitätsmedizin Berlin, Campus Virchow Klinikum, 13353 Berlin, Germany; ¹⁵Department of Computer Science, Stanford University, Stanford, CA 94305, USA; ¹⁶Department of Biology and Koch Institute, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; ¹⁷Current address: Immunai, New York, NY 10114, USA; ¹⁸Current address: 10x Genomics, San Francisco, CA 94111, USA; ¹⁹Current address: Genentech, San Francisco, CA 94080, USA

Quantifying mitochondrial proteome remodeling during macrophage polarization

Joan Blanco-Fernandez, Manfredo Quadroni, Alexis A. Jourdain

University of Lausanne, Switzerland

Quantification of all 12 canonical ribonucleotides by real-time fluorogenic in vitro transcription

Janne Purhonen^1,2, Jukka Kallijarvi^1,2

¹Folkhalsan Research Center, Finland; ²Stem Cells and Metabolism Research Program, Faculty of Medicine, University of Helsinki

Long-read NGS for detection of mitochondrial DNA large-scale deletions and complex rearrangements

Chiara Frascarelli¹, Nadia Zanetti¹, Alessia Nasca¹, Rossella Izzo¹, Costanza Lamperti¹, Eleonora Lamantea¹, Daniele Ghezzi^1,2, Andrea Legati¹

¹Fondazione IRCCS Istituto Neurologico Carlo Besta (Milan, Italy); ²University of Milan (Milan, Italy)

Maintenance on mitochondrial complexes ensures bioenergetic function in differentiated cells

Ilka Wittig¹, Julian Heidler¹, Heiko Giese², Ralf P. Brandes¹

¹Institute for Cardiovascular Physiology, Goethe University Frankfurt, Germany; ²Molecular Bioinformatics, Goethe University, Frankfurt, Germany

Investigating pathogenicity and tissue-specificity of mitochondrial aminoacyl-tRNA synthetase defects AARS2, EARS2 and RARS2 in neurons

Oliver Podmanicky, Fei Gao, Denisa Hathazi, Rita Horvath

Department of Clinical Neurosciences, University of Cambridge, United Kingdom

Mutations in Coq2 leads to severe developmental delay and early death in both zebrafish and mouse

Julia Corral-Sarasa¹, Sergio López-Herrador², Juan M. Martínez-Gálvez^1,3, Pilar González-García², Laura Jiménez-Sánchez¹, Mª Elena Díaz-Casado^1,2, Luis C. López^1,2

¹Ibs.Granada, Granada, Spain; ²Physiology Department, Biomedical Research Center, University of Granada, Granada, Spain; ³Biofisika Institute (CSIC,UPV-EHU) and Department of Biochemistry and Molecular Biology, University of Basque Country, Leioa, Spain

Pathogenic variants of the mitochondrial metallochaperone SCO1 result in a severe, combined COX and copper deficiency that causes a dilated cardiomyopathy in the murine heart.

Sampurna Ghosh¹, Scot C. Leary¹, Paul A. Cobine²

¹University of Saskatchewan, Canada; ²Auburn University

Tissue-specific adaptation of stress responses upon COX10 deficiency

Lea Isermann^1,2, Milica Popovic^1,2, Ming Yang^1,2, Christian Frezza^1,2, Aleksandra Trifunovic^1,2

¹CECAD Research Center, Germany; ²Institute for Mitochondrial Diseases and Aging, Medical Faculty, University of Cologne

Using iPSC-derived neurons to unravel the pathomechanisms of Leber’s hereditary optic neuropathy

Camille Peron¹, Alessandra Maresca², Angelo Iannielli^3,4, Alberto Danese⁵, Simone Patergnani⁵, Danara Ormanbekova², Andrea Cavaliere¹, Carlotta Giorgi⁵, Paolo Pinton^5,6, Vania Broccoli^3,4, Valerio Carelli^2,7, Valeria Tiranti¹

¹Unit of Medical Genetics and Neurogenetics, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milano, Italy; ²IRCCS Istituto delle Scienze Neurologiche di Bologna, Programma di Neurogenetica, Bologna, Italy; ³Division of Neuroscience, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), San Raffaele Scientific Institute, via Olgettina 60, 20132, Milan, Italy; ⁴National Research Council (CNR), Institute of Neuroscience, Milan, Italy; ⁵Department of Medical Sciences, Laboratory for Technologies of Advanced Therapies, University of Ferrara, 44121 Ferrara, Italy; ⁶Maria Cecilia Hospital, GVM Care & Research, 48033, Cotignola, Ravenna, Italy; ⁷Department of Biomedical and Neuromotor Sciences (DIBINEM), University of Bologna, Bologna, Italy

Stem cell modelling of mitochondrial disease-linked cardiomyopathy

Ann E. Frazier^1,2, Yau Chung Low^1,2, Cameron L. McKnight^1,2, Linden Muellner-Wong^1,3, Hayley L. Pointer¹, Nikeisha Caruana³, Jordan J. Crameri³, Luke E. Formosa⁴, Yilin Kang³, Thomas D. Jackson³, Alison G. Compton^1,2,5, Michael T. Ryan⁴, Andrew G. Elefanty^1,2,6, Enzo R. Porrello^1,6,7,8, David A. Stroud^1,3,5, David A. Elliott^1,2,6,7, Diana Stojanovski³, David R. Thorburn^1,2,5

¹Murdoch Children’s Research Institute, The Royal Children's Hospital, Melbourne, VIC, Australia; ²Department of Paediatrics, The University of Melbourne, Melbourne, VIC, Australia; ³Department of Biochemistry and Pharmacology and The Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Melbourne, VIC, Australia; ⁴Department of Biochemistry and Molecular Biology, Monash Biomedicine Discovery Institute, Monash University, Melbourne, VIC, Australia; ⁵Victorian Clinical Genetics Services, The Royal Children’s Hospital, Melbourne, VIC, Australia; ⁶The Novo Nordisk Foundation Center for Stem Cell Medicine (reNEW), Murdoch Children's Research Institute, Melbourne, VIC, Australia; ⁷Melbourne Centre for Cardiovascular Genomics and Regenerative Medicine, The Royal Children's Hospital, Melbourne, VIC, Australia; ⁸Department of Anatomy and Physiology, School of Biomedical Sciences, The University of Melbourne, Melbourne, VIC, Australia

Biochemical and computational approaches to dissect the effect of MT-CYB pathogenic mutations on respiratory chain activity and assembly

Gaia Tioli, Francesco Musiani, Luisa Iommarini, Anna Maria Porcelli, Anna Maria Ghelli

Department of Pharmacy and Biotechnology, University of Bologna, Italy

Exploring the assembly and maintenance of mitochondrial complex I by complexome profiling-based approaches

Alfredo Cabrera-Orefice^1,2, Ilka Wittig¹

¹Institute for Cardiovascular Physiology, Goethe University Frankfurt, Germany; ²Radboud Institute for Molecular Life Sciences, Radboudumc, Nijmegen, The Netherlands

Functional involvement of actin-binding Gelsolin on mitochondrial Oxphos dysfunction

María Illescas, Ana Peñas, Cristina Ugalde

Fundación Hospital 12 de Octubre, Spain

In vivo role of respiratory complex I NDUFA10 subunit in dNTP homeostasis

Andrea Férriz Gordillo¹, David Molina-Granada^1,2, Javier Ramón^1,2, Izaskun Izagirre-Urizar¹, Marina Singla-Manau¹, Maria Jesús Melià^1,2, Antoni Ruiz-Vicaria¹, Javier Torres-Torronteras^1,2, Mònica Zamora³, Michael T. Ryan⁴, Cristina Ugalde^2,5, Josep Antoni Villena⁶, Ramon Martí^1,2, Yolanda Cámara^1,2

¹Research Group on Neuromuscular and Mitochondrial Disorders, Vall d’Hebron Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Spain; ²Biomedical Network Research Centre on Rare Diseases (CIBERER), Instituto de Salud Carlos III, Madrid, Spain; ³BCNatal | Fetal Medicine Research Center (Hospital Clínic and Hospital Sant Joan de Déu), University of Barcelona, Barcelona 08028, Spain. and Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), University of Barcelona, Barcelona 08036, Spain.; ⁴Department of Biochemistry and Molecular Biology, Monash Biomedicine Discovery Institute, Monash University, Melbourne, Australia; ⁵Instituto de Investigación, Hospital Universitario 12 de Octubre, Avda. de Córdoba s/n, 28041 Madrid, Spain.; ⁶Laboratory of Metabolism and Obesity, Vall d'Hebron - Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Spain; CIBERDEM, CIBER on Diabetes and Associated Metabolic Diseases, Instituto de Salud Carlos III, Barcelona, Spain

Modeling POLRMT pathogenic variants in the mouse

David Alsina^1,2, Roberta Filograna^1,2, Rodolfo García-Villegas^1,2, Camilla Koolmeister^1,2, Nils-Göran Larsson^1,2,3

¹Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden; ²Max Planck Institute Biology of Ageing - Karolinska Institutet Laboratory, Karolinska Institutet, Stockholm, Sweden; ³Centre for Inherited Metabolic Diseases, Karolinska University Hospital, Stockholm, Sweden

The role of the CCR4 family member ANGEL1 in the expression of mitochondrial-targeted proteins

Kai Chang¹, Paula Clemente¹, Joyce Noble¹, Björn Reinius¹, Anna Wedell^1,2, Christoph Freyer^1,2, Anna Wredenberg^1,2

¹Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden; ²Centre for Inherited Metabolic Diseases, Karolinska University Hospital, Stockholm, Sweden

Tissue-specific bioenergetics in mouse models of mitochondrial disease

Valeria Balmaceda¹, Timea Komoldi², Massimo Zeviani¹, Erich Gnaiger³, Anthony L. Moore⁴, Erika Fernandez Vizarra¹, Carlo Viscomi¹

¹Università di Padova; ²Semmelweis University; ³Universität Innsbruck; ⁴University of Sussex

Yeast as a tool to investigate variants in mtARS genes associated with mitochondrial diseases

Sonia Figuccia¹, Camilla Ceccatelli Berti¹, Andrea Legati², Rossella Izzo², Alessia Nasca², Daniele Ghezzi^2,3, Paola Goffrini¹

¹Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parma, Italy; ²Unit of Medical Genetics and Neurogenetics, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy; ³Department of Medical Physiopathology and Transplantation, University of Milan, Milan, Italy

A mutation in mouse mt-Atp6 gene induces respiration defects and opposed effects on the cell tumorigenic phenotype

Raquel Moreno-Loshuertos¹, Nieves Movilla¹, Joaquín Marco-Brualla², Ruth Soler-Agesta¹, Patricia Ferreira¹, José Antonio Enríquez³, Patricio Fernández-Silva¹

¹University of Zaragoza, Spain; ²University of Zaragoza, Peaches Biotech Group, Spain; ³Fundación Centro Nacional de Investigaciones Cardiovasculares Carlos III, Spain

A systemic Muscle-WAT crosstalk progressively depletes protein and fat stores aggravating mitochondrial myopathy.

Nneka Southwell¹, Guido Primiano³, Emelie Beattie¹, Nicola Rizzardi¹, Serenella Servidei³, Giovanni Manfredi¹, Qiuying Chen², Marilena D'Aurelio¹

¹Weill Cornell Medicine, Brain and Mind Research Institute, New York, NY; ²Weill Cornell Medicine, Department of Pharmacology, New York, NY; ³Fondazione Policlinico Universitario A. Gemelli, IRCCS, Rome, Italy; Dipartimento di Neuroscienze, Università Cattolica del Sacro Cuore, Rome, Italy.

A novel mitochondrial assembly factor RTN4IP1 has an essential role in the final stages of Complex I assembly

Monika Oláhová^1,2, Jack J. Collier^1,3, Rachel M. Guerra⁴, Juliana Heidler⁵, Kyle Thompson¹, Robert N. Lightowlers¹, Zofia M.A. Chrzanowska-Lightowlers¹, Ilka Wittig⁵, David J. Pagliarini⁴, Robert W. Taylor¹

¹Wellcome Centre for Mitochondrial Research, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK; ²Department of Applied Sciences, Faculty of Health & Life Sciences, Northumbria University, Newcastle upon Tyne, UK; ³Department of Neurology and Neurosurgery, Montreal Neurological Institute, McGill University, Montreal, QC, Canada; ⁴Department of Cell Biology and Physiology, Washington University School of Medicine, St. Louis, MO 63110, USA; ⁵Functional Proteomics Group, Institute for Cardiovascular Physiology, Goethe University Frankfurt, 60590, Frankfurt am Main, Germany

ETFDH supports OXPHOS efficiency in skeletal muscle by regulating coenzyme Q homeostasis

Beñat Salegi Ansa¹, Juan Cruz Herrero Martín¹, José M. Cuezva^1,2,3,4, Laura Formentini^1,2,3,4

¹Department of Molecular Biology, Centro de Biología Molecular "Severo Ochoa" (CBMSO-UAM-CSIC), Madrid, Spain; ²Instituto Universitario de Biología Molecular (IUBM), Autonomous University of Madrid, Madrid, Spain; ³Centro de Investigación Biomédica en red de Enfermedades Raras (CIBERER), ISCIII, Madrid, Spain; ⁴Instituto de Investigación Hospital 12 de octubre, i+12, Universidad Autónoma de Madrid, Madrid, Spain

Metabolic rewiring as an adaptive mechanism in COX null cells

Guillermo Puertas-Frias^1,2, Kristýna Čunátová^1,2, Petr Pecina¹, Marek Vrbacký¹, Lukáš Alán¹, Tomáš Čajka³, Josef Houštěk¹, Tomáš Mráček¹, Alena Pecinová¹

¹Department of Bioenergetics, Institute of Physiology, Czech Academy of Sciences, Prague, Czech Republic; ²Faculty of Science, Charles University, 12800 Prague, Czech Republic; ³Laboratory of Translational Metabolomics, Institute of Physiology, Czech Academy of Sciences, Prague, Czech Republic

Metabolic rewiring due to progressive increase in mtDNA mutation heteroplasmy reveals markers of disease severity

Karin Terburgh¹, Marianne Venter¹, Jeremie Z Lindeque¹, Emi Ogasawara², Mirian C H Janssen³, Jan A M Smeitink³, Kazuto Nakada⁴, Roan Louw¹

¹North-West University, South Africa; ²Osaka University, Japan; ³Radboud University Medical Center, Netherlands; ⁴University of Tsukuba, Japan

Novel or rare AIFM1 pathogenic variants: their impact on mitochondrial metabolism and clinical manifestation in eight patients, including 3 girls

Tereza Rakosnikova¹, Jan Kulhanek¹, Martin Reboun¹, Hana Stufkova¹, Lenka Dvorakova¹, Dagmar Grecmalova², Pavlina Plevova², Tomas Honzik¹, Hana Hansikova¹, Jiri Zeman¹, Marketa Tesarova¹

¹Department of Pediatrics and Inherited Metabolic Disorders, First Faculty of Medicine, Charles University and General University Hospital in Prague; ²Institute of Molecular and Clinical Pathology and Medical Genetics, University Hospital Ostrava

Pathological molecular mechanisms underlying COA8 loss of function

Kristyna Cunatova^1,2, Michele Brischigliaro^1,2, Alfredo Cabrera-Orefice³, Cinzia Franchin¹, Jimin Pei⁴, Marco Roverso⁵, Sara Bogialli⁵, Qian Cong⁴, Giorgio Arrigoni¹, Susanne Arnold^3,6, Carlo Viscomi^1,2, Massimo Zeviani^2,7, Erika Fernández-Vizarra^1,2

¹Department of Biomedical Sciences, University of Padova, Padova, Italy; ²Veneto Institute of Molecular Medicine, Padova, Italy; ³Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands; ⁴University of Texas Southwestern Medical Center, Dallas, TX, USA; ⁵Department of Chemical Sciences, University of Padova, Padova, Italy; ⁶Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Cologne, Germany; ⁷Department of Neurosciences, University of Padova, Padova, Italy

Retinal pathophysiology characterisation of the novel mitochondrial heteroplasmy mouse model

Lucia Luengo-Gutierrez¹, Keira Turner¹, James B Stewart², Patrick Yu-Wai-Man¹, Michal Minczuk¹

¹University of Cambridge, United Kingdom; ²Newcastle University, United Kingdom

Impaired spermatogenesis driven by mitochondrial dysfunction and ferroptosis in primary spermatocytes in a mouse model of Leigh syndrome

Enrico Radaelli¹, Charles-Antoine Assenmacher¹, Esha Banerjee¹, Florence Manero², Salim Khiati³, Anais Girona³, Guillermo Lopez-Lluch⁴, Placido Navas⁴, Marco Spinazzi^3,5

¹University of Pennsylvania,USA; ²University of Angers, SFR ICAT, SCIAM, 49000 Angers, France; ³MITOLAB, University of Angers, INSERM U1083, France; ⁴Pablo de Olavide University, Spain; ⁵Neuromuscular Reference Center CHU Angers, France

Mitophagy dysfunction in mitochondrial myopathy and therapy by mitophagy activator CAP1902

Takayuki Mito¹, Amy E. Vincent², Julie Faitg², Kathleen Rodgers³, Kevin Gaffney³, Thomas G. McWilliams¹, Orian Shirihai⁴, Anu Suomalainen¹

¹STEMM Research Program, Biomedicum Helsinki, Faculty of Medicine, University of Helsinki, Helsinki, Finland; ²Wellcome Centre for Mitochondrial Research, Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK; ³Department of Pharmacology, Center for Innovations in Brain Science, University of Arizona, Tucson, AZ, USA; ⁴Department of Medicine, Endocrinology, and Department of Molecular and Medical Pharmacology, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA

Mtfp1 controls oxidative phosphorylation and cell death in liver disease

Cecilia Patitucci¹, Juan Diego Hernández-Camacho¹, Elodie Vimont¹, Etienne Kornobis², Thibault Chaze³, Quentin Giai Gianetto^3,4, Mariette Matondo³, Anastasia Gazi⁵, Ivan Nemanyy⁶, Daniella Hock⁷, Erminia Donnarumma¹, Timothy Wai¹

¹Institut Pasteur, Mitochondrial Biology Group, CNRS UMR 3691, Université Paris Cité, Paris, France.; ²Institut Pasteur, Biomics Technological Platform, Université Paris Cité, Paris, France.; ³Institut Pasteur, Bioinformatics and Biostatistics Hub, Université Paris Cité, Paris, France.; ⁴Institut Pasteur, Proteomics Core Facility, MSBio UtechS, UAR CNRS 2024, Université Paris Cité, Paris, France.; ⁵Institut Pasteur Ultrastructural Bio Imaging, UTechS, Université Paris Cité, Paris, France.; ⁶Platform for Metabolic Analyses, SFR Necker, INSERM US24/CNRS UMS 3633, Paris, France.; ⁷Department of Biochemistry and Pharmacology, Bio21 Molecular Science and Biotechnology Institute, University of Melbourne, Parkville, Australia.

Non-canonical function of succinate dehydrogenase assembly factor 2 (SDHAF2) during OXPHOS dysfunction

Kugapreethan Roopasingam¹, Joanna Sacharz¹, Tegan Stait², Yau chung Low^2,3, Ann E. Frazier^2,3, David P. De souza⁴, David R. Thorburn^2,3,5, David A. Stroud^1,3,5

¹Department of Biochemistry and Pharmacology, Bio21 Molecular Science and Biotechnology Institute, University of Melbourne, Parkville, VIC, Australia; ²Murdoch Children's Research Institute, Royal Children's Hospital, Parkville, VIC, Australia; ³Department of Paediatrics, University of Melbourne, Parkville, VIC, Australia; ⁴Metabolomics Australia, Bio21 Molecular Science and Biotechnology Institute, University of Melbourne, Parkville, VIC, Australia; ⁵Victorian Clinical Genetics Services, Royal Children's Hospital, Parkville, VIC, Australia

NUAK1-dependent metabolic underpinnings of adult muscle stem cells

Ha-My Ly, Caroline Brun, Géraldine Meyer-Dihet, Julien Courchet, Rémi Mounier

Physiopathology and Genetics of Neurons and Muscles Laboratory, Institut NeuroMyoGène, Lyon, France

A novel approach to measure complex V ATP hydrolysis in frozen cell lysates and tissue homogenates

Lucia Fernandez del Rio^1,2, Cristiane Benincá^1,2, Frankie Villalobos^1,2, Cynthia Shu^1,2, Linsey Stiles^1,2,3, Marc Liesa^1,2,4,5, Ajit S. Divakaruni^2,3, Rebeca Acin-Perez^1,2, Orian S. Shirihai^1,2,3,4

¹Department of Medicine, Endocrinology, David Geffen School of Medicine, University of California, Los Angeles, CA, 90095 USA; ²Metabolism Theme, David Geffen School of Medicine, University of California, Los Angeles, CA, 90095, USA; ³Department of Molecular and Medical Pharmacology, University of California, Los Angeles, CA, 90095, USA; ⁴Molecular & Cellular Integrative Physiology, University of California, Los Angeles, CA, 90095, USA.; ⁵Institut de Biologia Molecular de Barcelona, IBMB-CSIC, Barcelona, Catalonia, 08028, Spain

OxPhos defects cause cell-autonomous and whole-body signs of hypermetabolism in cells and in patients with mitochondrial diseases

Gabriel Sturm¹, Karan Kalpita¹, Anna S Monzel¹, Balaji Santhanam¹, Tanja Taivassalo², Céline Bris³, Atif Towheed¹, Albert Higgins-Chen⁴, Meagan McManus⁵, Andres Cardenas⁶, Jue Lin⁷, Elissa Epel⁷, Shamima Rahman⁸, Jon Vissing⁹, Bruno Grassi¹⁰, Morgan Levine¹¹, Steve Horvath¹¹, Ronald G Haller¹², Guy Lenaers³, Douglas C Wallace⁵, Marie-Pierre St-Onge¹, Saeed Tavasoie¹, Vincent Procaccio³, Brett A Kaufman¹³, Erin L Seifert¹⁴, Michio Hirano¹, Martin Picard¹

¹Columbia University Irving Medical Center, United States of America; ²University of Florida, United States of America; ³Angers University, UMR CNRS 6015 - INSERM U1083, MitoVasc Institute, Angers, France; ⁴Yale University, United States of America; ⁵University of Pennsylvania, United States of America; ⁶Stanford University, United States of America; ⁷University of California San Francisco, United States of America; ⁸Great Ormond Street Hospital for Children NHS Foundation Trust, London, United Kingdom; ⁹University of Copenhagen, Denmark; ¹⁰University of Udine, Italy; ¹¹Altos labs, United States of America; ¹²University of Texas Southwestern Medical Center, United States of America; ¹³University of Pittsburgh, United States of America; ¹⁴Thomas Jefferson University, United States of America

Dysfunction of mitochondrial chaperone HSP60 triggers disruption of mitochondrial pathways activating multiple regulatory responses

Cagla Cömert¹, Paula Fernandez-Guerra¹, Kasper Kjær-Sørensen², Jakob Hansen³, Jesper Just^4,5, Jasper Carlsen¹, Lisbeth Schmidt-Laursen², Johan Palmfeldt¹, Peter Bross¹

¹Research Unit for Molecular Medicine, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark; ²Department of Molecular Biology and Genetics, Aarhus University, Aarhus, Denmark; ³Department of Forensic Medicine, Aarhus University, Aarhus, Denmark; ⁴Department of Molecular Medicine, Aarhus University Hospital, Aarhus, Denmark; ⁵Center of Functionally Integrative Neuroscience, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark

Generation of iPSCs derived neural progenitors and cardiomyocytes as cellular models to study the pathophysiology of Pearson Syndrome

Chiara Fasano¹, Luca Sala^2,3, Camille Peron¹, Andrea Cavaliere¹, Maria Nicol Colombo¹, Valeria Tiranti¹

¹Unit of Medical genetics and Neurogenetics, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy; ²Istituto Auxologico Italiano IRCCS, Center for Cardiac Arrhythmias of Genetic Origin and Laboratory of Cardiovascular Genetics, Milan, Italy; ³Department of Biotechnology and Biosciences, University of Milano - Bicocca, Milan, Italy

High aerobic exercise capacity predicts increased mitochondrial response to exercise training

Estelle Heyne¹, Susanne Zeeb¹, Luren G Koch², Steven L Britton³, Torsten Doenst¹, Michael Schwarzer¹

¹Department of Cardiothoracic Surgery, University Hospital of Friedrich-Schiller-University Jena, Germany; ²Department of Physiology and Pharmacology, University of Toledo, Toledo, OH, United States; ³Department of Anesthesiology, University of Michigan, Ann Arbor, MI, United States

Investigating the role of LONP1 in heart and skeletal muscle metabolism

Franziska Baumann¹, Dieu Hien Rozsivalova¹, Katharina Senft¹, Simon Geißen², Aleksandra Trifunovic³

¹Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), 50931 Cologne, Germany; ²Department III of Internal Medicine, Heart Center, University Hospital of Cologne, 50931 Cologne, Germany; ³Center for Molecular Medicine Cologne (CMMC), 50931 Cologne, Germany

Mitochondrial dysfunction promotes liver fibrosis through the ACOT2-MCT6-OXCT1 axis.

Xiaoshan Zhou¹, Sophie Curbo¹, Wei Wang², Xinling Li², Jingyi Yan¹, Yu Lei¹, Raoul Kuiper³, Ujjwal Noegi¹, Anna Karlsson¹

¹Karolinska Institutet, Sweden; ²Zhengzhou University, China; ³Norwegian Veterinary Institute, Norway

PNC2 (SLC25A36) deficiency associated with the hyperinsulinism/hyperammonemia syndrome

Francesco Massimo Lasorsa¹, Deborah Fratantonio², Maher A. Shahroor³, Vito Porcelli¹, Bassam Abu-Libdeh³, Orly Elpeleg⁴, Luigi Palmieri¹

¹Università degli Studi di Bari Aldo Moro, Italy; ²Libera Università Mediterranea Giuseppe Degennaro, Italy; ³Department of Pediatrics and Genetics, Al Makassed Hospital and Al-Quds University, Palestine.; ⁴Department of Genetics, Hadassah, Hebrew University Medical Center, Israel

Cultured neurons with CoQ10 deficiency reveal alterations of lipid metabolism

Alba Pesini¹, Eliana Barriocanal-Casado¹, Giacomo Monzio-Compagnoni², Kleiner Giulio¹, Agustin Hidalgo-Gutierrez¹, Mohammed Bakkali³, Yashpal Singh Chhonker⁴, Saba Tadesse¹, Delfina Larrea¹, Daryl J Murry⁴, Caterina Mariotti⁵, Barbara Castellotti⁵, Luis Carlos Lopez³, Alesio Di Fonzo², Estela Area-Gomez¹, Catarina Quinzii¹

¹Department of Neurology, Columbia University Irving Medical Center, New York, NY, 10032, United States; ²IRCCS Foundation Ca' Granda Ospedale Maggiore Policlinico, Dino Ferrari Center, Neuroscience Section, Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy; ³Institute of Biotechnology, Biomedical Research Center (CIBM), Health Science Technological Park (PTS), University of Granada, Armilla, Granada, 18100, Spain; ⁴Department of Pharmacy Practice and Science, College of Pharmacy, University of Nebraska Medical Center, 986145 Nebraska Medical Center, Omaha, NE; ⁵Unita` di Genetica delle Malattie Neurodegenerative e Metaboliche, Fondazione IRCCS Istituto Neurologico "Carlo Besta", Milan, 20126, Italy

An engineered variant of MECR reductase reveals indispensability of long-chain acyl-ACPs for mitochondrial respiration

M. Tanvir Rahman¹, M. Kristian Koski², Joanna Panecka-Hofman^3,4, Werner Schmitz⁵, Alexander J. Kastaniotis¹, Rebecca C. Wade^4,6, Rik K. Wierenga¹, J. Kalervo Hiltunen¹, Kaija J. Autio¹

¹Faculty of Biochemistry and Molecular Medicine, University of Oulu, Finland; ²Biocenter Oulu, University of Oulu, Oulu, Finland; ³Faculty of Physics, University of Warsaw, Warsaw, Poland; ⁴Molecular and Cellular Modeling Group, Heidelberg Institute for Theoretical Studies (HITS), Heidelberg, Germany; ⁵Department of Biochemistry and Molecular Biology, University of Würzburg, Würzburg, Germany; ⁶Zentrum für Molekulare Biologie (ZMBH), DKFZ-ZMBH Alliance and Interdisciplinary Center for Scientific Computing (IWR), Heidelberg University, Heidelberg, Germany

Antibiotics directly affect mitochondrial respiration

Judith Sailer¹, Sabine Schmitt², Hans Zischka^1,3, Erich Gnaiger²

¹Technische Universität München, Germany; ²Oroboros Instruments GmbH, Innsbruck, Austria; ³Helmholtz Zentrum München, Germany

Can transmission of mitochondria over the species barrier promote climate change adaptation?

Kateryna Gaertner¹, Craig Michell², Riikka Tapanainen², Steffi Goffart², Sina Saari¹, Manu Soininmäki², Eric Dufour¹, Jaakko Pohjoismäki²

¹Tampere University, Finland; ²University of Eastern Finland

Developing an in vitro model to study the impact of the m.3243A>G mutation in iPSC-derived myofibers

Gabriel E. Valdebenito, Anitta R. Chacko, Michael R. Duchen

University College London, United Kingdom

Discordant phenotype in fibroblast cell lines generated from the same MELAS patient

Monica Moresco¹, Valentina Concetta Tropeano¹, Valentina Del Dotto², Mariantonietta Capristo¹, Claudio Fiorini¹, Danara Ormanbekova¹, Chiara La Morgia^1,2, Maria Lucia Valentino^1,2, Valerio Carelli^1,2, Alessandra Maresca¹

¹IRCCS Istituto delle Scienze Neurologiche di Bologna, Italy; ²Department of Biomedical and Neuromuscular Sciences (DIBINEM), University of Bologna

Generation of a novel CoQ deficient mouse model to elucidate the role of COQ4

Eliana Barriocanal Casado, Agustin Hidalgo-Gutierrez, Alba Pesini, Catarina M Quinzii

Department of Neurology, Columbia University Irving Medical Center, New York, New York, USA.

Perivascular adipose tissue remodeling impairs mitochondrial function in thermoneutral-housed rats

Amy C Keller¹, Melissa M Henckel¹, Leslie A Knaub¹, Greg B Pott¹, Georgia James², Jane E-B Reusch¹

¹University of Colorado/Rocky Mountain Regional VA Medical Center, United States of America; ²Cornell College, United States of America

Temporal analysis of mitochondrial complexome profiling coupled to multi-omics analysis unveils implications of CIV remodelling in postnatal heart development

Milica Popovic, Aleksandra Trifunovic

University of Cologne, Germany

Mitochondrial dysfunction in immune cells leads to distinct transcriptome profile and improved immune competence in Drosophila

Yuliya Basikhina¹, Laura Vesala^1,2, Tea Tuomela¹, Emilia Siukola¹, Anssi Nurminen¹, Pedro F. Vale³, Tiina S. Salminen¹

¹Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland; ²Department of Molecular Biology, Umeå University, Umeå, Sweden; ³Institute of Evolutionary Biology, School of Biological Sciences, University of Edinburgh, United Kingdom

Molecular mechanisms of extraocular muscle manifestation in mitochondrial myopathy

Swagat Pradhan, Takayuki Mito, Thomas McWilliams, Nahid Khan, Anu Suomalainen

STEMM, Faculty of Medicine, University of Helsinki, 00290 Helsinki, Finland

Redox metabolites and transporters: Differential expression and ratios in specific Ndufs4 knockout mice organs.

Jeremie Zander Lindeque, Marthinus Theodorus Jooste, Daneël Nel, Belinda Fouché, Marianne Venter

Human Metabolomics, North-West University, South Africa

What makes folding of a mitochondrial protein dependent on the HSP60/HSP10 chaperone complex?

Peter Bross, Cagla Cömert, Paula Fernandez-Guerra, Johan Palmfeldt

Aarhus University and Aarhus University Hospital, Denmark

OXPHOS composition is altered in the FXNI151F mouse model of Friedreich Ataxia in a progressive and a tissue-specific way

Maria Pazos-Gil, Marta Medina-Carbonero, Arabela Sanz-Alcázar, Marta Portillo-Carrasquer, Fabien Delaspre, Elisa Cabiscol, Joaquim Ros, Jordi Tamarit

Dept. Ciències Mèdiques Bàsiques, Fac. Medicina, Universitat de Lleida. IRB Lleida.

Disease causing-Mfn2 mutations alter mitochondrial fusion and fission dynamics and metabolism.

Daniel Lagos^1,2, Nicolas Perez², Pamela R. de Santiago², Diego Troncoso², Benjamin Cartes-Saavedra², Rita Horvath¹, Veronica Eisner²

¹Department of Clinical Neurosciences, School of Clinical Medicine, University of Cambridge, Cambridge, UK.; ²School of Biological Sciences, Department of Cellular and Molecular Biology, Pontificia Universidad Catolica de Chile, Santiago, Chile.

Dissecting the mitochondrial disease-associated ATAD3 gene cluster and its pathogenic variants

Linden Muellner-Wong^1,2, Ann E. Frazier^2,3, Eric Hanssen⁴, Tegan Stait^2,3,5, Alice J. Sharpe⁶, Danielle L. Rudler^7,8,9, Shuai Nie¹⁰, Luke E. Formosa⁶, Michael T. Ryan⁶, Aleksandra Filipovska^7,8,9, David R. Thorburn^2,3,5, David A. Stroud^1,2,5

¹Department of Biochemistry and Pharmacology, Bio21 Molecular Science and Biotechnology Institute, University of Melbourne, Parkville, Victoria,Australia; ²Murdoch Children's Research Institute, Royal Children's Hospital, Melbourne, Victoria, Australia; ³Department of Paediatrics, University of Melbourne, Melbourne, Victoria, Australia; ⁴Ian Holmes Imaging Centre, Bio21 Molecular Science and Biotechnology Institute, University of Melbourne, Melbourne, Victoria, Australia; ⁵Victorian Clinical Genetics Services, Royal Children's Hospital, Melbourne, Victoria, Australia; ⁶Department of Biochemistry and Molecular Biology, Monash Biomedicine Discovery Institute, Monash University, Melbourne, Victoria, Australia; ⁷Harry Perkins Institute of Medical Research and The University of Western Australia Centre for Medical Research, QEII Medical Centre, Nedlands, Western Australia, Australia; ⁸ARC Centre of Excellence in Synthetic Biology, QEII Medical Centre and University of Western Australia, Nedlands, Western Australia, Australia; ⁹Telethon Kids Institute, Northern Entrance, Perth Children's Hospital, 15 Hospital Avenue, Nedlands, Western Australia, Australia; ¹⁰Mass Spectrometry and Proteomics Facility, Bio21 Molecular Science and Biotechnology Institute, University of Melbourne, Victoria, Australia

Dynamics of adenine nucleotides in colorectal cancer clinical material

Sten Miller^1,2, Leenu Reinsalu^1,2, Marju Puurand¹, Natalja Timohhina¹, Kersti Tepp¹, Igor Sevchuk¹, Indrek Reile¹, Heiki Vija¹, Vahur Valvere³, Jelena Bogovskaja³, Tuuli Käämbre¹

¹National Institute of Chemical Physics and Biophysics, Estonia; ²Tallinn University of Technology, Estonia; ³North Estonia Medical Centre

The role of SURF1 protein in cytochrome c oxidase biogenesis

Maria Jose Saucedo Rodriguez¹, Petr Pecina¹, Kristýna Čunátová¹, Marek Vrbacký¹, Alena Pecinová¹, Roman Sobotka², Carlo Viscomi³, Massimo Zeviani⁴, Tomáš Mráček¹, Josef Houštěk¹

¹Institute of Physiology of the Czech Academy of Sciences, Czech Republic; ²Institute of Microbiology, Czech Academy of Sciences, Trebon, Czech Republic; ³Departement of Biomedical Sciences, University of Padova, Padova, Italy; ⁴Departement of Neurosciences, University of Padova, Padova, Italy

Depicting inclusion body myositis using a patient-derived fibroblast model

Judith Cantó Santos^1,2,3, Laura Valls Roca^1,2,3, Ester Tobías^1,2,3, Francesc Josep García García^1,2,3, Mariona Guitart Mampel^1,2,3, Félix Andújar Sánchez^1,2,3, Anna Esteve Codina^4,5, Beatriz Martín Mur⁴, Mercedes Casado^3,6, Rafael Artuch^3,6, Estel Solsona Vilarrasa^7,8, José Carlos Fernández Checa^7,8, Carmen García Ruiz^7,8, Carles Rentero⁹, Carlos Enrich⁹, Pedro Juan Moreno Lozano^1,2,3, José César Milisenda^1,2,3, Francesc Cardellach^1,2,3, Josep Maria Grau Junyent^1,2,3, Glòria Garrabou^1,2,3

¹Laboratory of Inherited Metabolic Disorders and Muscle Disease, Centre de Recerca Biomèdica CELLEX - Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS) and Faculty of Medicine and Health Sciences, University of Barcelona, Barcelona, Spain; ²Department of Internal Medicine, Hospital Clinic of Barcelona, Barcelona, Spain; ³CIBERER— Spanish Biomedical Research Centre in Rare Diseases, Madrid, Spain; ⁴CNAG-CRG, Centre for Genomic Regulation, Barcelona Institute of Science and Technology, Barcelona, Spain; ⁵Universitat Pompeu Fabra (UPF), Barcelona, Spain; ⁶Department of Clinical Biochemistry, Institut de Recerca Sant Joan de Déu; Esplugues de Llobregat, Barcelona, Spain; ⁷Department of Cell Death and Proliferation, Institute of Biomedical Research of Barcelona (IIBB-CSIC), Liver Unit-HCB-IDIBAPS, Barcelona, Spain; ⁸CIBEREHD-Spanish Biomedical Research Centre in Hepatic and Digestive Diseases, Madrid, Spain; ⁹Department of Biomedicine, Cell Biology Unit, CELLEX-IDIBAPS, Faculty of Medicine and Health Sciences, University of Barcelona, Barcelona, Spain

Effect of physiological cell culture media on cell viability and NRF2 activation

Anton Terasmaa, Rutt Taba, Marie Põlluaed, Tuuli Käämbre

National Institute of Chemical and Biological Physics, Estonia

Genetic and functional characterization of a new patient with COX4I1 deficiency

Frederic Tort¹, Olatz Ugarteburu¹, Gerard Muñoz-Pujol¹, María Unceta², Ainhoa García², Arantza Arza², Javier de las Heras², Antonia Ribes¹, Laura Gort¹

¹Hospital Clinic, IDIBAPS, CIBERER, Barcelona, Spain; ²Hospital Universitario de Cruces, Spain

Application of the Escherichia coli Model System to Study the Human Polyribonucleotide Phosphorylase

Roberto Pizzoccheri, Federica Anna Falchi, Andrea Alloni, Francesca Forti, Sarah Sertic, Giulio Pavesi, Federica Briani

Università degli Studi di Milano, Italy

Phase two biotransformation is highly affected by mitochondrial disease: considerations for pharmacological therapies.

Marianne Venter, Belinda Fouché, Louis Mostert, Zander Lindeque, Rencia van der Sluis

Human Metabolomics, North-West University, South Africa

Mitochondrial phenotyping of fibroblasts from Kearns Sayre’s patients to model the disease

Laura Valls-Roca^1,2,3, Judith Cantó-Santos^1,2,3, Ester Tobías^1,2,3, Francesc Josep García-García^1,2,3, Félix Andújar-Sánchez^1,2, Laia Farré-Tarrats^1,2, Cristina Núñez de Arenas^3,6, Rocío Garrido-Moraga⁵, Joan Padrosa^1,2, Raquel Aránega^1,2, Pedro J. Moreno-Lozano^1,2,3, José César Milisenda^1,2, Mar O’Callaghan^3,4, Teresa García-Silva^3,5, Montserrat Morales-Conejo^3,5, Rafael Artuch^3,4, Miguel Ángel Martín^3,5, José M. Cuezva^3,6, Josep M. Grau-Junyent^1,2,3, Mariona Guitart-Mampel^1,2,3, Glòria Garrabou^1,2,3

¹Laboratory of Inherited Metabolic Disorders and Muscle Disease, Centre de Recerca Biomèdica CELLEX - Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Faculty of Medicine and Health Sciences - Universitat de Barcelona (UB); Barcelona, Spain.; ²Internal Medicine Department - Hospital Clínic de Barcelona; Barcelona, Spain.; ³CIBERER—Spanish Biomedical Research Centre in Rare Diseases; Madrid, Spain.; ⁴Hospital Sant Joan de Déu (HSJdD) de Barcelona, Barcelona, Spain.; ⁵Grupo de Enfermedades Mitocondriales, Instituto de Investigación Hospital 12 de Octubre (imas12). Madrid. Spain.; ⁶Centro de Biología Molecular S.O., Universidad Autónoma de Madrid (UAM); Madrid, Spain.

Effect of various mutations in the GTPase and middle domain of Drp1 on the mitochondrial network, nucleoids, and peroxisomes

Nikol Volfová¹, Aleš Hnízda¹, Lukáš Alán², Robert Dobrovolný¹, Jakub Sikora¹, Jana Křížová¹, Lucie Zdražilová¹, Hana Hansíková¹, Jiří Zeman¹, Markéta Tesařová¹

¹Department of Paediatrics and Inherited Metabolic Disorders, Charles University and General University Hospital in Prague, Prague, Czech Republic; ²Institute of Physiology, The Czech Academy of Sciences, Prague, Czech Republic

Importance of human ClpXP protease for mitochondrial function

Daniela Burska, Jana Tesarova, Jana Krizova, Nikol Volfova, Hana Hansikova, Jiri Zeman, Lukas Stiburek

First Faculty of Medicine, Charles University; and General University Hospital in Prague

Ketogenic diet mitigates the pathogenic phenotype in TMEM70 deficient animal models

Aleksandra Marković¹, Petr Pecina¹, Alena Pecinová¹, Marek Vrbacký¹, Jana Mikešová¹, Hana Nuskova¹, Kateřina Tauchmannová¹, Otto Kučera³, Zuzana Cervinkova³, Radislav Sedláček², Josef Houštěk¹, Tomáš Mráček¹

¹Institute of Physiology of the Czech Acad. Sci., Prague, Czech Republic; ²Institute of Molecular Genetics of the Czech Acad. Sci., Prague, Czech Republic; ³Faculty of Medicine, Charles University, Hradec Kralove, Czech Republic

Mutation in Coq5 leads to CoQ10 deficiency, developmental delay and early death in zebrafish

Sergio López-Herrador¹, Julia Corral-Sarasa², Macarena Gil¹, Yaco Morillas¹, Luis C. López^1,2, Mª. Elena Díaz-Casado^1,2

¹Physiology Department, Biomedical Research Center, University of Granada, Granada, Spain; ²Ibs.Granada, Granada, Spain

Omega-3 supplementation effects on mitochondrial and metabolic profile in a rabbit model of intrauterine growth restriction

Félix Andújar-Sánchez^1,2,3, Mariona Guitart-Mampel^1,2,3, Míriam Illa^3,4, Ester Tobías^1,2,3, Laura Valls-Roca^1,2,3, Judith Cantó-Santos^1,2,3, Laia Farré-Tarrats^1,2,3, Clara Oliva^3,5, Francesc Cardellach^1,2,3, Rafael Artuch^3,5, Fàtima Crispi^3,4, Glòria Garrabou^1,2,3, Francesc J García-García^1,2,3

¹Inherited metabolic diseases and muscular disorders Lab, Cellex - Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Faculty of Medicine and Health Science - University of Barcelona (UB), 08036 Barcelona, Spain; ²Internal Medicine Unit, Medicine Department, Hospital Clínic of Barcelona, 08036 Barcelona, Spain; ³Biomedical Network Research Centre on Rare Diseases (CIBERER), Instituto de Salud Carlos III, 28029 Madrid, Spain; ⁴BCNatal—Barcelona Centre for Maternal-Foetal and Neonatal Medicine (Hospital Clínic and Hospital Sant Joan de Déu), IDIBAPS, University of Barcelona, 08036 Barcelona, Spain; ⁵Department of Clinical Biochemistry, Institut de Recerca de Sant Joan de Deu, Esplugues de Llobregat, 08036 Barcelona, Spain

Redundant and divergent roles of COQ8A and COQ8B in cell metabolism.

Agata Valentino¹, Elisa Baschiera¹, Iolanda Spera², Luna Laera², Valentina Giorgio³, Alessandra Castegna², Leonardo Salviati¹, Maria Andrea Desbats¹

¹Clinical Genetics Unit, Department of Women and Children’s Health, University of Padova and “Fondazione Istituto di Ricerca Pediatrica Città Della Speranza”, 35127 Padova, Italy.; ²Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari Aldo Moro, 70121 Bari, Italy; ³Department of Biomedical and Neuromotor Sciences, University of Bologna, I-40126 Bologna, Italy.

Loss of CHCHD8 (COA4) caused mitochondrial respiratory Complex IV deficiency

Taku Amo, Yuga Hikage

National Defense Academy, Japan

Delving into the phenotypic heterogeneity of Coenzyme Q biosynthesis defects

Ariadna Crespo-González¹, María del Mar Blanquer-Rosselló^1,2, Laura García-Corzo^1,2, Carmine Staiano^1,2, María Chacón¹, Ana Belén Cortés-Rodríguez³, Estefanía Sanabria-Reinoso¹, María Almuedo-Castillo¹, Miguel Ángel Moreno-Mateos^1,2, Gloria Brea-Calvo^1,2

¹Centro Andaluz de Biología del Desarrollo/Universidad Pablo de Olavide-CSIC-JA, Seville, Spain; ²CIBERER, Instituto de Salud Carlos III, Madrid, Spain; ³Laboratorio de Fisiopatología Celular y Bioenergética, Seville, Spain.

Investigating the impact of mtDNA point mutations on mitochondrial function and bioenergetics using patient fibroblasts and hiPSC derived neuronal models

Anitta Rose Chacko, Gabriel Esteban Valdebenito, Michael R Duchen

University College London, United Kingdom

Human COQ10A and COQ10B genes are essential for Coenzyme Q function in mitochondrial respiration

Elisa Baschiera¹, Carlo Viscomi¹, Maria Andrea Desbats², Placido Navas³, Leonardo Salviati^1,2

¹University of Padova, Italy; ²Isituto di Ricerca Pediatrica - Cittá della Speranza, Italy; ³Pablo de Olavide University, Sevilla, Spain

The use of β-RA in leptin-deficient mice reveals novel mechanisms of this compound for the treatment of obesity

Sara Torres-Rusillo¹, Sergio López-Herrador¹, Pilar González-García¹, Mª. Elena Díaz-Casado^1,2, Laura Jiménez-Sánchez², Julia Corral-Sarasa², Julio Ruiz-Travé¹, Luis C. López^1,2

¹Physiology Department, Biomedical Research Center, University of Granada, Granada, Spain; ²Ibs.Granada, Granada, Spain

Oocyte-specific mitofusin 2 knockout enhances the metabolic disfunction of offspring born to obese mothers

Jaiane Santana da Paz, Angélica Camargo dos Santos, Lindomar Oliveira Alves, Julio Cesar Valerio Roncato, Renan Omete Ferreira, Victória Hass Gonçalves, Mirela Souza Cáceres, Marcos Roberto Chiaratti

Federal University of Sao Carlos, Brazil

Off-target effects of etomoxir: inhibition of mitochondrial Complex I and fatty acid oxidation

Timea Komlódi^1,2, Filomena SG Silva³, Ana I Duarte^3,4,5, Débora Mena^3,5,6, Luiz F Garcia-Souza¹, Marina Makrecka-Kuka⁷, Guida Bento³, Luís F Grilo^3,5,6, Paulo J Oliveira³, Erich Gnaiger¹

¹Oroboros Instruments, Innsbruck, Austria; ²Dept Biochem, Semmelweis Univ, Budapest, Hungary; ³CNC-Center Neurosci and Cell Biol, Univ Coimbra, Portugal; ⁴IIUC-Inst Interdisciplinary Research, Univ Coimbra, Portugal; ⁵CIBB-Center for Innovative Biomed Biotechnol, Univ Coimbra, Portugal; ⁶PDBEB-PhD Programme in Exp Biol Biomed, IIUC, Univ Coimbra, Portugal; ⁷Lab Pharmaceut Pharmacol, Latvian Inst Organic Synthesis, Riga, Latvia

Mitochondrial alterations in sirtuin1 heterozygous mice fed high fat diet and melatonin

Alessandra Stacchiotti^1,2, Francesca Arnaboldi¹, Gaia Favero³, Aleksandra Korac⁴, Maria Monsalve⁵, Rita Rezzani³

¹Dept Biomedical Sciences for Health, University of Milan, Milan, Italy; ²Laboratorio Morfologia Umana Applicata, IRCCS Policlinico San Donato, Milan, Italy; ³Dept Clinical and Experimental Sciences, University of Brescia, Brescia, Italy; ⁴Center for Electron Microscopy, University of Belgrade, Belgrade, Serbia; ⁵Instituto de Investigaciones Biomedicas “Alberto Sols” (CSIC-UAM), Madrid, Spain

Microproteins in metabolic regulation

Jiemin Nah¹, Baptiste Kerouanton¹, David Robinson², Kyle Dunlap³, Pooja Sridnivasan¹, Sonia Chothani¹, Greg Ducker³, Owen Rackham⁴, David Stroud², Lena Ho¹

¹Duke-NUS Medical School, Singapore; ²University of Melbourne, Australia; ³University of Utah, USA; ⁴University of Southampton, UK

Oxphos deficiency indicates novel functions for the mitochondrial protein import subunit tim50

Jordan J Crameri¹, Catherine S Palmer¹, David Coman², David A Stroud¹, David R Thorburn^3,4,5, Ann E Frazier^3,4, Diana Stojanovski¹

¹Department of Biochemistry and Pharmacology and the Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Parkville, Victoria, 3010, Australia; ²Queensland Children’s Hospital, Department of Metabolic Medicine, South Brisbane, Brisbane, Queensland, 4001, Australia; ³Murdoch Children’s Research Institute, Royal Children’s Hospital, Melbourne, Victoria, 3052, Australia; ⁴Department of Paediatrics, University of Melbourne, Melbourne, Victoria, 3052, Australia; ⁵Victorian Clinical Genetics Services, Royal Children’s Hospital, Melbourne, Victoria, 3052, Australia

The levels and activation state of the pyruvate dehydrogenase complex modulate the SCAFI-dependent organization of the mitochondrial respiratory chain

Sandra Lopez-Calcerrada¹, Ana Sierra-Magro¹, Erika Fernández-Vizarra², Cristina Ugalde^1,3

¹Instituto de Investigación Hospital 12 de Octubre, Madrid 28041, Spain; ²Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy; ³Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), U723, Madrid, Spain

Development of a yeast model to characterize OPA1 mutations associated with different neuromuscular disorders

Cristina Calderan¹, Marco Marchi¹, Mara Doimo¹, Maria Andrea Desbats¹, Geppo Sartori², Leonardo Salviati¹

¹Clinical Genetics Unit, Department of Women’s and Children’s Health, University of Padua, and Istituto di Ricerca Pediatrica (IRP) Città della Speranza, Padua, Italy; ²Department of Biomedical Sciences, University of Padua, Padua, Italy

An ultra-special family with an ultra-rare condition: three children with mithochondrial complex III deficiency due to homozygous mutations in Lyrm7

Francesca Manzoni, Titia Anita Wischmeijer, Elisa Boni, Lucio Parmeggiani, Andrea Bordugo, Francesca Pellegrini

Bolzano Hospital, Italy

Fuels and drivers of smouldering brain disease

Stefano Pluchino, Luca Peruzzotti-Jametti, Alexandra Nicaise

University of Cambridge, United Kingdom

Immunometabolisms at the crossroad between inflammation and aging

Maria Mittelbrunn

CSIC- Consejo Superior de Investigaciones Cientificas, Spain

Dissecting the role of type I interferon signaling in microglial response in a mouse model of mitochondrial disease

Melania González-Torres^1,2, Patrizia Bianchi¹, Patricia Prada-Dacasa¹, Joaquín Fernández-Irigoyen³, Enrique Santamaría³, Mariona Arberola⁴, Elisenda Sanz^1,2, Albert Quintana^1,2

¹Institute of Neurosciences, Autonomous University of Barcelona, Barcelona, Spain; ²Department of Cell Biology, Physiology and Immunology, Autonomous University of Barcelona, Barcelona, Spain; ³Clinical Neuroproteomics Unit, Navarrabiomed, Complejo Hospitalario de Navarra (CHN), Universidad Pública de Navarra (UPNA), Pamplona, Spain; ⁴Centro de Análisis Genómico, CNAG-CRG, Barcelona, Spain

The contribution of cell free-mitochondrial DNA in the pathogenesis of MELAS syndrome

Alessandra Maresca¹, Monica Moresco¹, Valentina Del Dotto², Concetta Valentina Tropeano¹, Mariantonietta Capristo¹, Claudio Fiorini¹, Danara Ormanbekova¹, Alessandro Rapone², Maria Lucia Valentino^1,2, Chiara La Morgia^1,2, Valerio Carelli^1,2

¹IRCCS Istituto delle Scienze Neurologiche di Bologna, Programma di Neurogenetica, Italy; ²Department of Biomedical and NeuroMotor Sciences, University of Bologna, Italy

A novel role for the mitochondrial topoisomerase TOP1MT in mediating mtDNA release and cGAS-STING activation

Iman Al Khatib¹, Yves Pommier², Phillip West³, William Gibson⁴, Tim Shutt¹

¹University of Calgary, Canada; ²National Institutes of Health; ³Texas A&M University; ⁴University of British Columbia

Impaired inflammatory response to lipopolysaccharide in fibroblasts from patients with long-chain fatty acid oxidation disorders

Signe Mosegaard^1,2, Krishna Twayana³, Simone Denis¹, Jeffrey Kroon⁴, Bauke Schomakers⁵, Michel van Weeghel⁵, Riekelt Houtkooper¹, Rikke Olsen², Christian Holm³

¹Laboratory Genetic Metabolic Diseases, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands; ²Research Unit for Molecular Medicine, Department of Clinical Medicine, Aarhus University and Aarhus University Hospital, Aarhus, Denmark; ³Department of Biomedicine, Aarhus Research Center for Innate Immunology, Aarhus University, Aarhus, Denmark; ⁴Department of Experimental Vascular Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands; ⁵Core Facility Metabolomics, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands

Fumarate induces mtDNA release via mitochondrial-derived vesicles and drives innate immunity

Vincent Paupe¹, Vincent Zecchini², Christian Frezza^2,3, Julien Prudent¹

¹Medical Research Council, MBU,University of Cambridge, UK; ²Medical Research Council Cancer Unit,University of Cambridge, UK; ³CECAD Research Centre, University of Cologne, Cologne, Germany

Free cytosolic-mitochondrial DNA triggers a potent type-I Interferon response in Kearns–Sayre patients counteracted by mofetil mycophenolate

Michela Di Nottia¹, Ivan Caiello², Alessandra Torraco¹, Martina Zoccola¹, Fabrizio De Benedetti², Carlo Dionisi-Vici³, Enrico Bertini⁴, Diego Martinelli³, Rosalba Carrozzo¹

¹Unit of Cellular Biology and Diagnosis of Mitochondrial Diseases, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy; ²Division of Rheumatology, Bambino Gesù Children’s Hospital, IRCCS, Rome, Italy; ³Division of Metabolism, Bambino Gesù Children’s Hospital, IRCCS, Rome, Italy; ⁴Research Unit of Muscular and Neurodegenerative Disorders, Bambino Gesù Children’s Hospital, IRCCS, Rome, Italy

Destructuring of mitochondrial cristae in the initiation of CHCHD10-related neurodegeneration

Véronique Paquis-Flucklinger^1,2

¹IRCAN, UMR 7284/INSERM U1081/UCA, Nice, France; ²Reference Center for mitochondrial diseases, Universitary hospital, Nice, France

Convergence of mitochondrial and lysosomal dysfunction in Parkinson’s disease

Lena F Burbulla

Ludwig Maximilian University (LMU) Munich, Germany

Development of cortical organoids to model m.3243A>G disease and understand cell specificity

Denisa Hathazi, Yu Nie, Camilla Lions, Juliane Müller, George Gibbons, Patrick Chinnery, Andras Lakatos, Rita Horvath

University of Cambridge, United Kingdom

Brain and brainstem-specific mitochondrial diversity associated with vulnerability to neurodegeneration in mitochondrial diseases

Anna S. Monzel¹, Masashi Fujita², Ayelet M. Rosenberg¹, Eugene V. Mosharov^3,6, Jack Devine¹, David A. Bennett^4,5, Vilas Menon², Philip L. De Jager², Martin Picard^1,6,7

¹Division of Behavioral Medicine, Department of Psychiatry, Columbia University Irving Medical Center, New York NY, USA; ²Center for Translational & Computational Neuroimmunology, Department of Neurology and the Taub Institute for Research on Alzheimer’s Disease and the Aging Brain, Columbia University Irving Medical Center, New York NY, USA; ³Division of Molecular Therapeutics, Department of Psychiatry, Columbia University Irving Medical Center, New York NY, USA; ⁴Rush Alzheimer's Disease Center, Rush University Medical Center, Chicago, IL, USA; ⁵Department of Neurological Sciences, Rush University Medical Center, Chicago, IL, USA; ⁶New York State Psychiatric Institute, New York NY, USA; ⁷Department of Neurology, Columbia University Irving Medical Center, New York NY, USA

Mitochondrial DNA mutations exacerbate motor and behavioural deficits in a mouse model of Parkinson’s disease

Michael J Keogh^1,2, Yu Nie^2,3, Zoe Golder^2,3, Malwina Prater^2,3, Nils-Goran Larsson⁴, Andrew Blamire^1,5, Chris Morris¹, Patrick F Chinnery^2,3

¹Clinical and Translational Research Institute, Centre for Life, Newcastle University, UK, NE3 1BZ; ²Department of Clinical Neuroscience, University of Cambridge, UK, CB2 0QQ; ³Medical Research Council Mitochondrial Biology Unit, University of Cambridge, UK, CB2 0QQ; ⁴Division of Molecular Metabolism, Biomedicum, floor 9D, Solnavägen 9, Karlolinska Institute, 171 65 Stockholm, Sweden; ⁵Newcastle Magnetic Resonance Centre, Campus for Ageing and Vitality, Newcastle University, NE4 5PL

Macromolecular crowding: A novel player in mitochondrial physiology and disease

Elianne P Bulthuis¹, Cindy EJ Dieteren¹, Jesper Bergmans¹, Job Berkhout¹, Jori A Wagenaars¹, Els MA van de Westerlo¹, Emina Podhumljak¹, Mark A Hink², Laura FB Hesp¹, Hannah S Rosa³, Afshan N Malik³, Mariska Kea-te Lindert¹, Peter HGM Willems¹, Han JGE Gardeniers⁴, Wouter K den Otter⁴, Merel JW Adjobo-Hermans¹, Werner JH Koopman^1,5

¹Radboud University Medical Center, The Netherlands; ²University of Amsterdam, The Netherlands; ³King's College, London, UK; ⁴University of Twente, The Netherlands; ⁵Wageningen University, The Netherlands

Preserved motor function and striatal innervation despite severe degeneration of dopamine neurons upon mitochondrial dysfunction

Thomas Paß¹, Roy Chowdury², Julien Prudent², Yu Nie³, Patrick Chinnery³, Markus Aswendt⁴, Heike Endepols⁵, Bernd Neumaier⁵, Trine Riemer⁶, Bent Brachvogel⁶, Rudi Wiesner⁷

¹Center for Physiology and Pathophysiology, Faculty of Medicine and University Hospital Cologne, Germany; ²Medical Research Council Mitochondrial Biology Unit, University of Cambridge, UK; ³Medical Research Council Mitochondrial Biology Unit and Department of Clinical Neurosciences, Cambridge Biomedical Campus, University of Cambridge, UK; ⁴Department of Neurology, Faculty of Medicine and University Hospital Cologne, Germany; ⁵Institute of Radiochemistry and Experiment Molecular Imaging, Faculty of Medicine and University Hospital of Cologne, Germany; ⁶Department of Pediatrics and Adolescent Medicine, Experimental Neonatology, Faculty of Medicine and University Hospital Cologne, Germany; ⁷Center for Physiology and Pathophysiology, Faculty of Medicine and University Hospital Cologne; Cologne Excellence Cluster on Cellular Stress Responses in Aging-associated Diseases (CECAD) and Center for Molecular Medicine Cologne, University of Cologne, Germany

The mitochondrial DNA depletion syndrome protein FBXL4 mediates the degradation of the mitophagy receptors BNIP3 and NIX to suppress mitophagy

Keri-Lyn Kozul¹, Giang Thanh Nguyen-Dien^1,2, Yi Cui¹, Prajakta Gosavi Kulkarni¹, Michele Pagano^3,4, Brett M. Collins⁵, Robert Taylor^6,7, Mathew J.K. Jones⁸, Julia K. Pagan^1,5,8

¹School of Biomedical Sciences, Faculty of Medicine, University of Queensland, Brisbane, Australia; ²Department of Biotechnology, School of Biotechnology, Viet Nam National University-International University, Ho Chi Minh City, Vietnam; ³Department of Biochemistry and Molecular Pharmacology, New York University Grossman School of Medicine, New York, USA; ⁴Perlmutter Cancer Center, New York University Grossman School of Medicine, New York, USA; ⁵The University of Queensland, Institute for Molecular Bioscience, Brisbane, Australia; ⁶Wellcome Centre for Mitochondrial Research, Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK; ⁷NHS Highly Specialised Service for Rare Mitochondrial Disorders, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK; ⁸The University of Queensland Diamantina Institute, Faculty of Medicine, The University of Queensland, Brisbane, Australia

Transcriptional regulation of mitochondrial stress responses

Aleksandra Trifunovic

University of Cologne, Germany

Mitochondrial DNA mutations in ageing and cancer - what's the connection?

Anna Smith¹, Julia Whitehall¹, Shivam Karadkar¹, Pedro Silva-Pinheiro², Conor Lawless¹, Michal Minczuk², Doug Turnbull¹, Owen Sansom³, Laura Greaves¹

¹Wellcome Centre for Mitochondrial Research, Newcastle University, United Kingdom; ²MRC Mitochondrial Biology Unit, Cambridge, United Kingdom; ³CRUK Beatson Institute, Glasgow, United Kingdom

Mitochondrial complex III deficiency drives c-MYC overexpression and illicit cell cycle entry leading to senescence and segmental progeria

Janne Purhonen^1,2, Rishi Banerjee^1,2, Vilma Wanne^1,2, Nina Sipari³, Matthias Mörgelin^4,5, Vineta Fellman^1,2,6,7, Jukka Kallijärvi^1,2

¹Folkhälsan Research Center, Finland; ²Stem Cells and Metabolism Research Program, Faculty of Medicine, University of Helsinki, Finland; ³Viikki Metabolomics Unit, University of Helsinki, Finland; ⁴Division of Infection Medicine, Department of Clinical Sciences, Lund University, Sweden; ⁵Colzyx AB, Lund, Sweden; ⁶Department of Clinical Sciences, Lund, Pediatrics, Lund University, Sweden; ⁷Children’s Hospital, Helsinki University Hospital, Finland

A genetic deficiency screen in vivo reveals rescue mechanisms of mitochondrial dysfunction

Najla El Fissi¹, Florian Rosenberger², Kai Chang¹, Thomas Benedict Barton-Owen³, Zoe Golder³, Matthias Mann², Patrick Chinnery³, Anna Wedell¹, Christoph Freyer¹, Anna Wredenberg¹

¹Karolinska Institutet, Sweden; ²Max-Planck Institute of Biochemistry, Germany; ³University of Cambridge, Cambridge Biomedical Campus, UK

Heterochromatin Protein 1 controls gene expression and longevity in response to mitochondrial dysfunction

Patricia de la Cruz Ruiz¹, Hayat Heluani Gahete^1,2, María de los Angeles Ortega De La Torre², María Jesús Rodríguez Palero^1,2, Cristina Ayuso García¹, Shinya Ohta³, Peter Askjaer¹, Marta Artal-Sanz^1,2

¹Andalusian Centre for Developmental Biology (CABD). CSIC-Universidad Pablo de Olavide-Junta de Andalucía. Carretera de Utrera Km 1, 41013 Sevilla, Spain.; ²Department of Molecular Biology and Biochemical Engineering, Universidad Pablo de Olavide. Carretera de Utrera Km 1, 41013 Seville, Spain; ³Department of Biochemistry, Medical School, Kochi University, Kohasu, Oko-cho, Nankoku, Kochi 783-8505, Japan.

High fat diet ameliorates the mitochondrial cardiomyopathy of CHCHD10 mutant mice

Hibiki Kawamata, Nneka Southwell, Nicole Sayles, Giovanni Manfredi

Weill Cornell Medicine, United States of America

Functional characterisation of the human mitochondrial disaggregase, CLPB

Megan J Baker¹, Alexander J Anderson¹, Catherine S Palmer¹, David R Thorburn^2,3, Ann E Frazier², Diana Stojanovski¹

¹Department of Biochemistry and Pharmacology, The Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Parkville VIC 3010, Australia; ²Murdoch Children’s Research Institute, Royal Children’s Hospital and Department of Paediatrics, The University of Melbourne, Parkville VIC 3052, Australia; ³Victorian Clinical Genetics Services, Royal Children’s Hospital, Melbourne, Parkville VIC 3052, Australia

The mitochondrial inhibitor IF1 has a dual role in cancer

Martina Grandi¹, Cristina Gatto¹, Simone Fabbian², Natascia Tiso³, Francesco Argenton³, Massimo Bellanda², Giancarlo Solaini¹, Valentina Giorgio*¹, Alessandra Baracca*¹

¹Department of Biomedical and Neuromotor Sciences, University of Bologna; ²Department of Chemical Science, University of Padova; ³Department of Biology, University of Padova, Padova

Evaluating functional mobility and endurance in adults with Primary Mitochondrial Myopathy (PMM); insights concerning gait protocol and outcome measure selection.

Lisa Alcock^1,2, Alaa Abouhajar³, Theophile Bigirumurame⁴, Penny Bradley⁵, Philip Brown⁶, Laura Brown⁷, Ian Campbell⁵, Silvia Del Din^1,2, Julie Faitg⁷, Gavin Falkous⁷, Gráinne S. Gorman^2,7,8, Heather Hunter⁶, Rachel Lakey³, Robert McFarland^7,8, Jane Newman^2,7,8, Lynn Rochester^1,2,6, Vicky Ryan⁴, Hesther Smith⁵, Alison Steel³, Renae J. Stefanetti^2,7, Huizhong Su^2,7, Robert W. Taylor^2,7,8, Naomi J.P. Thomas^2,7,8, Helen Tuppen^2,7, Amy E. Vincent⁷, Charlotte Warren^2,7, Gillian Watson³

¹Translational and Clinical Research Institute, Newcastle University, UK; ²National Institute for Health and Care Research (NIHR) Newcastle Biomedical Research Centre (BRC), Newcastle University and The Newcastle upon Tyne Hospitals NHS Foundation Trust, UK; ³Newcastle Clinical Trials Unit, Newcastle University, UK; ⁴Population Health Sciences Institute, Newcastle University, UK; ⁵Pharmacy Directorate, The Newcastle upon Tyne Hospitals NHS Foundation Trust, UK; ⁶The Newcastle upon Tyne Hospitals NHS Foundation Trust, UK; ⁷Wellcome Centre for Mitochondrial Research, Translational and Clinical Research Institute, Newcastle University, UK; ⁸NHS Highly Specialised Service for Rare Mitochondrial Disorders, The Newcastle upon Tyne Hospitals NHS Foundation Trust, UK

Natural variability in protein expression of oxidative deficiency markers in single muscle fibres and tissue homogenate mitochondrial genetics in m.3243A>G-related myopathy

Tiago Bernardino Gomes^1,2, Charlotte Warren¹, Valeria Di Leo¹, Jordan Childs^1,3, Grainne Gorman^1,2, Doug M Turnbull¹, Amy E Vincent¹

¹Wellcome Centre for Mitochondrial Research, Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, United Kingdom; ²NHS Highly Specialised Service for Rare Mitochondrial Disorders, Newcastle upon Tyne, United Kingdom; ³Centre for Doctoral Training in Cloud Computing and Big Data, Newcastle upon Tyne, United Kingdom

Retrospective natural history of mitochondrial deoxyguanosine kinase deficiency: a worldwide cohort of 197 patients

E. Manzoni^1,2, P. Gaignard³, L.D. Schlieben^4,5, S. Carli¹, M. Hirano⁶, D. Ronchi⁷, E. Gonzales⁸, M. Shimura⁹, K. Murayama⁹, Y. Okazaki¹⁰, I. Baric¹¹, D. Ramadza¹¹, D. Karall¹², J. Mayr¹³, D. Martinelli¹⁴, C. La Morgia^15,16, G.A. Primiano^17,18, R. Santer¹⁹, S. Servidei^17,18, C. Bris²⁰, A. Cano²¹, F. Furlan²², S. Gasperini²³, N. Laborde²⁴, C. Lamperti²⁵, D. Lenz²⁶, M. Mancuso²⁷, F. Menni²², O. Musumeci²⁸, V. Nesbitt²⁹, E. Procopio³⁰, C. Rouzier³¹, C. Staufner²⁶, J.W. Taanman³², G. Tal³³, C. Ticci³⁰, V. Carelli^15,16, V. Procaccio²⁰, H. Prokisch^4,5, C. Garone^1,2

¹Department of Medical and Surgical Sciences, Alma Mater Studiorum University of Bologna; ²IRCCS Istituto delle Scienze Neurologiche, Neuropsichiatria dell’età pediatrica, Bologna; ³Department of Biochemistry, Bicêtre Hospital, Reference Center for Mitochondrial Disease, University of Paris-Saclay, Assistance Publique-Hôpitaux de Paris, France; ⁴School of Medicine, Institute of Human Genetics, Technical University of Munich,Germany; ⁵Institute of Neurogenomics, Computational Health Center, Helmholtz Zentrum München, Neuherberg, Germany; ⁶H. Houston Merritt Neuromuscular Research Center, Department of Neurology, Columbia University Irving Medical Center, New York, NY, USA; ⁷Dino Ferrari Center, Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy; ⁸Pediatric Hepatology and Pediatric Liver Transplantation Unit, Bicêtre Hospital, Reference Center for Mitochondrial Disease, University of Paris-Saclay, Assistance Publique-Hôpitaux de Paris, Paris, France; ⁹Center for Medical Genetics, Department of Metabolism, Chiba Children's Hospital, 579-1 Heta-cho, Midori-ku, Chiba, 266-000, Japan; ¹⁰Diagnostics and Therapeutic of Intractable Diseases, Intractable Disease Research Center, Graduate School of Medicine, Juntendo University, Hongo 2-1-1, Bunkyo-ku, Tokyo, 113-8421, Japan; ¹¹Department of Pediatrics, University Hospital Centre Zagreb, Zagreb, Croatia; ¹²Clinic for Pediatrics, Division of Inherited Metabolic Disorders, Medical University of Innsbruck, 6020 Innsbruck, Austria; ¹³University Children's Hospital, Paracelsus Medical University (PMU), 5020 Salzburg, Austria; ¹⁴Division of Metabolism, Bambino Gesù Children's Hospital IRCCS, Rome, Italy; ¹⁵Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy; ¹⁶IRCCS Istituto di Scienze Neurologiche di Bologna, Programma di Neurogenetica, Bologna, Italy; ¹⁷Dipartimento di Neuroscienze, Organi di Senso e Torace, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy.; ¹⁸Dipartimento Di Neuroscienze, Università Cattolica del Sacro Cuore, Rome, Italy.; ¹⁹Department of Pediatrics, University Medical Center Hamburg Eppendorf, Hamburg, Germany; ²⁰MitoLab, UMR CNRS 6015 - INSERM U1083, MitoVasc Institute , Angers University Hospital, Angers, France; ²¹Centre de référence des maladies héréditaires du métabolisme, CHU la Timone Enfants, Marseille, France; ²²Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Regional Clinical Center for expanded newborn screening, Milan, Italy; ²³Department of Pediatrics, Fondazione IRCCS San Gerardo dei Tintori, 20900 Monza, Italy.; ²⁴Unité de Gastroentérologie, Hépatologie, Nutrition et Maladies Héréditaires du Métabolisme, Hôpital des Enfants, CHU de Toulouse, Toulouse, France; ²⁵Division of Medical Genetics and Neurogenetics, Fondazione IRCCS Neurological Institute "C. Besta", Milan, Italy; ²⁶Division of Neuropaediatrics and Paediatric Metabolic Medicine, Center for Paediatric and Adolescent Medicine, University Hospital Heidelberg, Heidelberg, Germany; ²⁷Department of Clinical and Experimental Medicine, Neurological Institute, University of Pisa & AOUP, Italy; ²⁸Unit of Neurology and Neuromuscular Disorders, Department of Clinical and experimental Medicine, University of Messina, Italy; ²⁹Department of Paediatrics, Medical Sciences Division, Oxford University, Oxford OX3 9DU, UK; ³⁰Metabolic Unit, Meyer Children's Hospital IRCCS, Florence, Italy; ³¹Centre de référence des Maladies Mitochondriales, Service de Génétique Médicale, CHU de Nice, Université Côte d’Azur, CNRS, INSERM, IRCAN, Nice, France; ³²Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, University College London, London, United Kingdom; ³³Metabolic Clinic, Ruth Rappaport Children's Hospital, Rambam Health Care Campus, Haifa, Israel

Tissue, molecular and metabolic changes in the liver of patients with Mitochondrial Neurogastrointestinal Encephalomyopathy

Elisa Boschetti¹, Leonardo Caporali¹, Irene Neri¹, Claudio Fiorini², Danara Ormanbekova², Valeria Righi³, Roberto D'Angelo², Carolina Malagelada⁴, Roberta Costa¹, Giovanna Cenacchi¹, Rita Rinaldi², Antonietta D'Errico⁵, Maria Lucia Tardio⁵, Stefano Ratti¹, Roberto De Giorgio⁶, Valerio Carelli^1,2, Lucia Manzoli¹

¹Department of Biomedical and NeuroMotor Sciences (DIBINEM), University of Bologna, Bologna, Italy; ²IRCCS Istituto delle Scienze Neurologiche di Bologna. Italy; ³Department of Life Quality Studies (QuVI), University of Bologna, Bologna, Italy; ⁴University Hospital Vall d'Hebron. Barcelona. Spain; ⁵IRCCS St. Orsola. Bologna. Italy; ⁶Department of Translational Medicine, University of Ferrara, Ferrara, Italy

Phenotyping mtDNA-related diseases in childhood: a cohort study of 150 patients

Anna Ardisssone, Giulia Ferrera, Costanza Lamperti, Valeria Tiranti, Daniele Ghezzi, Isabella Moroni, Eleonora Lamantea

Fondazione IRCCS Besta, Milan Italy

Carrier frequency of pathogenic and likely pathogenic variants in POLG in Eastern Norway

Linda Mathisen¹, Erle Kristensen^2,3, Siren Berland⁴, Helle Høyer⁵, Ying Sheng¹, Trine Prescott⁵, Shamima Rahman^6,7, Laurence A. Bindoff^3,8,9, Omar Hikmat^3,10

¹Department of Medical Genetics, Oslo University Hospital, Oslo, Norway; ²Department of Medical Biochemistry, Oslo University Hospital, Oslo, Norway; ³Department of Clinical Medicine (K1), University of Bergen, Bergen, Norway; ⁴Department of Medical Genetics, Haukeland University Hospital, Bergen, Norway; ⁵Department of Medical Genetics, Telemark Hospital Trust, Skien, Norway; ⁶Metabolic Unit, Great Ormond Street Hospital, London, UK.; ⁷Mitochondrial Research Group, Genetics and Genomic Medicine Department, UCL Great Ormond Street Institute of Child Health, London, UK.; ⁸Department of Neurology, Haukeland University Hospital, Bergen, Norway; ⁹Nasjonal kompetansetjeneste for medfødte stoffskiftesykdommer, Oslo University Hospital, Oslo, Norway; ¹⁰Department of Pediatrics, Haukeland University Hospital, Bergen, Norway

Exercise testing and measurement of habitual physical activities in m.3243A>G-related Mitochondrial Disease

Renae J Stefanetti^1,2, Sarah J Charman¹, Alasdair P Blain¹, Alexandra Bright^1,2, Robert McFarland^1,2, Yi Shiau Ng^1,2, Gráinne S Gorman^1,2

¹Wellcome Centre for Mitochondrial Research. Clinical and Translational Research Institute. Faculty of Medical Sciences, Newcastle University, Newcastle Upon Tyne, United Kingdom; ²NHS Highly Specialised Service for Rare Mitochondrial Disorders of Adults and Children, Newcastle upon Tyne Hospitals NHS Foundation Trust

Leber’s hereditary optic neuropathy in females.

Giulia Amore¹, Martina Romagnoli², Michele Carbonelli¹, Chiara La Morgia^1,3, Valerio Carelli^1,2

¹Dipartimento di Scienze Biomediche e Neuromotorie, University of Bologna, Italy; ²IRCCS Istituto delle Scienze Neurologiche di Bologna, Programma di Neurogenetica, Bologna, Italy; ³IRCCS Istituto delle Scienze Neurologiche di Bologna, UOC Clinica Neurologica, Bologna, Italy

Non-invasive tool for mitochondrial diseases diagnostics

Zuzana Korandová^1,2, Eliška Koňaříková¹, Petr Pecina¹, Alena Pecinová¹, Josef Houštěk¹, Hana Hansíková², Tomáš Honzík², Tomáš Mráček¹

¹Laboratory of Bioenergetics, Institute of Physiology of the Czech Academy of Sciences, Prague, Czech Republic; ²1st Faculty of medicine, Charles University, Prague, Czech Republic

Obstetric history of women with m.3243A>G – a retrospective cohort study

Petra Kuikka, Hilkka Nikkinen, Kari Majamaa, Mika Henrik Martikainen

University of Oulu and Oulu University Hospital, Finland

Clustering analysis with optical coherence tomography data in Leber hereditary optic neuropathy (LHON) patients by non-negative matrix factorization unsupervised learning technique

Martina Romagnoli¹, Michele Carbonelli², Giulia Amore², Pietro D’Agati³, Piero Barboni^4,5, Leonardo Caporali¹, Claudio Fiorini¹, Valerio Carelli^1,2, Chiara La Morgia^2,3

¹IRCCS Istituto delle Scienze Neurologiche di Bologna, Programma di Neurogenetica - Bologna (Italy); ²Dipartimento di Scienze Biomediche e Neuromotorie, Università di Bologna - Bologna (Italy); ³IRCCS Istituto delle Scienze Neurologiche di Bologna, UOC Clinica Neurologica - Bologna (Italy); ⁴Department of Ophthalmology, University Vita-Salute, IRCCS Ospedale San Raffaele – Milan (Italy); ⁵Studio Oculistico d’Azeglio - Bologna (Italy)

Leigh syndrome global patient registry - cure mito foundation

Sophia Zilber¹, Kasey Woleben², Danielle Boyce³, Kevin Freiert⁴, Courtney Boggs⁵, Souad Messahel⁶, Melinda Burnworth⁷, Titilola Afolabi⁸, Saima Kayani⁹

¹Cure Mito Foundation, United States of America; ²Cure Mito Foundation, United States of America; ³Cure Mito Foundation, United States of America; Johns Hopkins University School of Medicine; ⁴Cure Mito Foundation, United States of America; ⁵Cure Mito Foundation, United States of America; ⁶Perot Foundation Neuroscience Transla-tional Research Center (PNTRC), The University of Texas Southwestern Medical Center O'Donnell Brain Institute; ⁷Midwestern University College of Pharmacy; ⁸Midwestern University College of Pharmacy; ⁹Cure Mito Foundation; The University of Texas Southwestern Medical Center

Mitochondrial ATP synthase deficiency and its relationship with the urea cycle

Barbara Siri¹, Diego Martinelli¹, Giorgia Olivieri¹, Sara Cairoli², Bianca Goffredo², Alessandra Torraco³, Rosalba Carrozzo³, Carlo Dionisi-Vici¹

¹Division of Metabolism, Department of Pediatric Subspecialties, Bambino Gesù Children's Hospital, Rome, Italy; ²Laboratory of Metabolic Diseases, Bambino Gesù Children's Hospital, IRCCS, 00146 Rome, Italy; ³Unit of Muscular and Neurodegenerative Disorders, Laboratory of Molecular Medicine, Bambino Gesù Children’s Hospital, IRCCS, Rome, Italy

Quantifying ataxia in adult patients with primary mitochondrial disease

Jane Newman^1,2,3,4, Lisa Alcock^2,4, Harry Ingledew¹, Silvia Del Din^2,4, Aye-Myat Moe^1,2,3,4, Yi Shiau Ng^1,2,3,4

¹Wellcome Centre for Mitochondrial Research, Newcastle University, United Kingdom; ²NIHR Newcastle Biomedical Research Centre, Newcastle University; ³NHS Highly Specialised Service for Rare Mitochondrial Disorders, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK; ⁴Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK

Retrospective natural history study of MTRFR/C12orf65-related disorders

Catarina Olimpio¹, Emma Harrison², Chloe Seikus², Allison Moore³, Heather Biggs², Rita Horvath²

¹East Anglian Medical Genetics Service, Cambridge University Hospitals NHS Foundation Trust, Cambridge, United Kingdom; ²Department of Clinical Neurosciences, University of Cambridge, Cambridge, United Kingdom (add-tr.mitoteam@nhs.net); ³Hereditary Neuropathy Foundation, New York, NY, USA (https://www.hnf-cure.org/)

Correlation of mitochondrial respiration in platelets, peripheral blood mononuclear cells and muscle fibres

Emil Westerlund^1,2, Sigurður E. Marelsson^1,3, Michael Karlsson⁴, Fredrik Sjövall^1,5, Imen Chamkha¹, Eleonor Åsander Frostner¹, Johan Lundgren⁶, Vineta Fellman⁶, Erik A. Eklund⁶, Katarina Steding-Ehrenborg⁷, Niklas Darin⁸, Gesine Paul⁹, Magnus J. Hansson¹, Johannes K. Ehinger^1,10, Eskil Elmér¹

¹Lund University, Sweden; ²A&E Department, Kungälv Hospital, Kungälv, Sweden; ³Children's Medical Center, Landspitali-The National University Hospital of Iceland, Reykjavík, Iceland; ⁴Department of Neurosurgery, Rigshospitalet, Copenhagen, Denmark; ⁵Skåne University Hospital, Department of Intensive- and perioperative Care, Malmö, Sweden; ⁶Department of Pediatrics, Skåne University Hospital, Lund University, Lund, Sweden; ⁷Clinical Physiology, Department of Clinical Sciences Lund, Lund University, Skåne University Hospital, Lund, Sweden; ⁸Department of Pediatrics, The Queen Silvia Children’s Hospital, University of Gothenburg, Gothenburg, Sweden; ⁹Lund University, Department of Clinical Sciences Lund, Translational Neurology Group and Wallenberg Center for Molecular Medicine, Lund, Sweden; ¹⁰Lund University, Skåne University Hospital, Department of Clinical Sciences Lund, Otorhinolaryngology, Head and Neck Surgery, Lund, Sweden

Epidemiology and the natural history of POLG disease in Norway

Erle Kristensen^1,2, Linda Mathisen³, Siren Berland⁴, Claus Klingenberg^5,6, Eylert Brodtkorb^7,8, Magnhild Rasmussen^9,10, Trine Tangeraas¹¹, Yngve Thomas Bliksrud¹, Shamima Rahman^12,13, Laurence Bindoff^11,14, Omar Hikmat^2,15

¹Department of Medical Biochemistry, Oslo University Hospital, Norway; ²Department of Clinical Medicine (K1), University of Bergen, Norway; ³Department of Medical Genetics, Oslo University Hospital, Norway; ⁴Department of Medical Genetics, Haukeland University Hospital, Norway; ⁵Paediatric Research Group, Department of Clinical Medicine, UiT The Artic University of Norway, Norway; ⁶Department of Paediatrics, University Hospital of North Norway, Norway; ⁷Department of Neurology, St. Olav’s Hospital, University Hospital, Norway; ⁸Department of Neuroscience and Movement Science, Faculty of Medicine, Norwegian University of Science and Technology, Norway; ⁹Unit for Congenital and Hereditary Neuromuscular Conditions (EMAN), Department of Neurology, Oslo University Hospital, Norway; ¹⁰Department of Clinical Neurosciences for Children, Oslo University Hospital, Norway; ¹¹Norwegian National Unit for Newborn Screening, Division of Paediatric and Adolescent Medicine, Oslo University Hospital, Norway. European Reference Network for Hereditary Metabolic Disorders; ¹²Metabolic Unit, Great Ormond Street Hospital, London, UK. European Reference Network for Hereditary Metabolic Disorders; ¹³Mitochondrial Research Group, Genetics and Genomic Medicine Department, UCL Great Ormond Street Institute of Child Health, UK; ¹⁴Department of Neurology, Haukeland University Hospital, Norway; ¹⁵Department of Pediatrics, Haukeland University Hospital, Norway

The evolving phenotypic profile of cardiomyopathy in patients with Barth syndrome

Carolyn Taylor¹, Hilary J. Vernon², Hani N. Sabbah³, David Brown⁴, Anthony Abbruscato⁴, Jim Carr⁴

¹Medical University of South Carolina, Charleston, SC, United States of America; ²Department of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, United States of America; ³Henry Ford Hospital, Detroit, MI, United States of America; ⁴Stealth BioTherapeutics, Inc, Needham, MA, United States of America

True or false mitochondrial disorder?

Agnes Rotig^1,3, Giulia Barcia^1,2,3, Zahra Assouline^2,3, Arnold Munnich¹, Claire-Marine Dufeu-Bérat^2,3, Nathalie Boddaert^1,2, Manuel Schiff^1,3, Jean-Paul Bonnefont^1,2,3

¹INSERM UMR1163, Université Sorbonne Paris Cité, Institut Imagine, 75015 Paris, France; ²Departments of Pediatric and Genetics, Hôpital Necker-Enfants-Malades, Paris, France; ³CARAMMEL reference center for mitochondrial diseases

An automated processing pipeline to perform probabilistic tractography of the anterior optic pathway applied to Leber’s hereditary optic neuropathy.

Giovanni Sighinolfi^1,2, Laura Ludovica Gramegna¹, Chiara La Morgia², Alessandro Carrozzi¹, Cristiana Fiscone^1,2, Claudia Testa^2,3, Raffaele Lodi^1,2, Valerio Carelli^1,2, Caterina Tonon^1,2, David Neil Manners¹

¹Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy; ²IRCCS Istituto delle Scienze Neurologiche di Bologna, Italy; ³Department of Physics and Astronomy, University of Bologna, Bologna, Italy

Natural history of Pearson syndrome: various clinical courses with changes in clinical phenotypes

Ayami Yoshimi¹, Sarah Grünert², Aron Fisch¹, Miriam Erlacher¹, Arndt Borkhardt³, Holger Cario⁴, Daniela Karall⁵, Charlotte Niemeyer¹

¹Department of Paediatrics and Adolescent Medicine, Division of Paediatric Haematology and Oncology, Medical Center, Faculty of Medicine, University of Freiburg, Germany; ²Department of General Paediatrics, Adolescent Medicine and Neonatology, Faculty of Medicine, University Medical Center, University of Freiburg, Freiburg, Germany; ³Department of Paediatric Oncology, Haematology and Clinical Immunology, Medical Faculty, Heinrich Heine University, Duesseldorf, Germany; ⁴Department of Paediatrics and Adolescent Medicine, University Medical Center Ulm, Ulm, Germany; ⁵Medical University of Innsbruck, Clinic for Paediatrics, Inherited Metabolic Disorders, Innsbruck, Austria

Phenotype and natural history of pantothenate kinase-associated neurodegeneration (PKAN)

Vassilena Iankova¹, Ivan Karin¹, Boriana Büchner¹, Thomas Klopstock^1,2,3

¹Department of Neurology With Friedrich Baur Institute, University Hospital of Ludwig-Maximilians-Universität München, Munich, Germany; ²German Center for Neurodegenerative Diseases (DZNE), Munich, Germany; ³Munich Cluster for Systems Neurology, Munich, Germany

RARS2 disease’s morbidity and mortality correlate with the severity of brain involvement

R Restuccia^1,2, L Licchetta^3,4, S Resciniti¹, F Ferraresi¹, E Santi¹, L Di Vito^3,4, R Minardi⁴, E Ricci², V Di Pisa², F Palombo⁴, F Bisulli^3,4, DM Cordelli^1,2, P Tinuper^3,4, V Carelli^3,4, C Garone^1,2

¹Department of Medical and Surgical Sciences, Alma Mater Studiorum University of Bologna, Bologna, Italy; ²IRCCS Istituto delle Scienze Neurologiche di Bologna, Neuropsichiatria dell’età pediatrica, Bologna, Italy; ³Dipartimento di Scienze Biomediche e Neuromotorie, Alma Mater Studiorum University of Bologna, Bologna, Italy; ⁴IRCCS Istituto delle Scienze Neurologiche di Bologna, Programma di Neurogenetica, Bologna, Italy

A new non-invasive diagnostic method for detection of pathogenic mitochondrial DNA variants using faecal-derived DNA samples.

Charlotte Warren¹, Isabel Barrow^1,2, Helen Tuppen¹, Laura Brown¹, Clare Massarella¹, David Houghton¹, Laura Greaves¹, Robert McFarland^1,2, Gráinne Gorman^1,2

¹Wellcome Centre for Mitochondrial Research, Translational and Clinical Research Institute; NIHR Newcastle Biomedical Research Centre, Newcastle University, Newcastle upon Tyne NE2 4HH, UK; ²Department of Neurosciences, NHS Highly Specialised Service for Rare Mitochondrial Disorders, Newcastle upon Tyne NE2 4HH, UK

Complex V assembly intermediates in human muscle from patient with suspected mitochondrial disease - Potential insights into disease mechanisms.

Amanda Lam^1,2,3, Robert Winter^1,2,3, Simon Heales^1,2,4

¹Neurometabolic Unit, NHNN, University College London Hospitals; ²Chemical Pathology Laboratory, Great Ormond Street Hospital for Children; ³Queen Square Institute of Neurology, University College London; ⁴Great Ormond Street Institute of Child Health, University College London

Prolonged gastrointestinal transit times in mitochondrial disease – a case control study

Simone Rask Nielsen^1,2, Anne-Marie Wegeberg^2,3, Donghua Liao^2,3, Asbjørn Mohr Drewes^2,3, Inge Søkilde Pedersen^2,4, Anja Lisbeth Frederiksen^1,2, Christina Brock^2,3

¹Dept. of Clinical Genetics, Aalborg University Hospital, Aalborg, Denmark; ²Dept.of Clinical Medicine, Aalborg University, Aalborg, Denmark; ³Mech-Sense, Dept. of Gastroenterology, Aalborg University Hospital, Aalborg, Denmark; ⁴Dept. of Molecular Diagnostics, Aalborg University Hospital, Aalborg, Denmark

Rethinking mitochondrial diabetes: a multifaceted disease entity

Chiara Pizzamiglio^1,2, Niki Margari³, Iwona Skorupinska², Antonio Borges Neves³, Danna Nitzani³, Michael G. Hanna^1,2, Umasuthan Srirangalingam³, Robert D.S. Pitceathly^1,2

¹Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, London, UK; ²NHS Highly Specialised Service for Rare Mitochondrial Disorders, Queen Square Centre for Neuromuscular Diseases, The National Hospital for Neurology and Neurosurgery, London, UK; ³Endocrinology Department, University College London Hospital, London, UK

Therapeutic intervention in Leber Hereditary Optic Neuropathy: later is better?

Martina Romagnoli¹, Giulia Amore², Pietro D’Agati³, Piero Barboni^4,5, Valerio Carelli^1,2, Chiara La Morgia^2,3, Michele Carbonelli²

¹IRCCS Istituto delle Scienze Neurologiche di Bologna, Programma di Neurogenetica - Bologna (Italy); ²Dipartimento di Scienze Biomediche e Neuromotorie, Università di Bologna - Bologna (Italy); ³IRCCS Istituto delle Scienze Neurologiche di Bologna, UOC Clinica Neurologica - Bologna (Italy); ⁴Department ofOphthalmology, University Vita-Salute, IRCCS Ospedale San Raffaele – Milan (Italy); ⁵Studio Oculistico d’Azeglio - Bologna (Italy)

Neurofilament light chain – an emerging biomarker in mitochondrial disease

Alessandra Maresca¹, Valerio Carelli^1,2, Monica Moresco¹, Chiara La Morgia^1,2, Maria Lucia Valentino^1,2, Laurence Bindoff³, Kristin Varhaug^4,5

¹IRCCS Istituto delle Scienze Neurologiche di Bologna, Bologna, Italy.; ²Department of Biomedical and Neuromotor Sciences, University of Bologna,; ³Department of Clinical Medicine (K1), University of Bergen, Bergen, Norway; ⁴Dept. of Neurology, Haukeland University Hospital, Norway; ⁵Neuro-SysMed - Centre of Excellence for Experimental Therapy in Neurology, Departments of Neurology and Clinical Medicine, Bergen, Norway

Assessing the role of mtdsRNA as a trigger for neuroinflammation in a mouse model of Leigh syndrome

Mònica Girona¹, Melania González-Torres¹, Patricia Prada-Dacasa¹, Patrizia Bianchi¹, Elisenda Sanz^1,2, Albert Quintana^1,2

¹Institute of Neurosciences, Autonomous University of Barcelona, Barcelona, Spain; ²Department of Cell Biology, Physiology and Immunology, Autonomous University of Barcelona, Barcelona, Spain

Concerted cell-specific neuronal programs drive neurodegeneration in Leigh Syndrome

Albert Quintana

Universitat Autònoma de Barcelona, Spain

Parkinson’s disease genes converge at the mitochondria-lysosome interface to promote inflammatory cell death

Jack Collier, Mai Nguyen, Sidong Huang, Heidi McBride

McGill University, Canada

[18F]ROStrace PET as a biomarker of mitochondria-induced neuroinflammation in the prodromal phase of Parkinson’s disease mouse models

Yi Zhu¹, Anthony Young², Neha Kohli¹, Josh Jose¹, Nisha Patel¹, Hsaioju Lee², Shihong Li², Guilong Tian², Eric Marsh¹, Michael Robinson¹, Robert Doot², Douglas Wallace¹, Robert Mach², Meagan Joy McManus¹

¹Children's Hospital of Philadelphia, United States of America; ²University of Pennsylvania, United States of America

Modulation of immune cell activation and differentiation by mitochondrial nicotinamide adenine dinucleotide levels

Aurea Oliva Herrero^1,2, Andrea Alonso Gomez^1,2, Javier Traba^1,2

¹Instituto Universitario de Biología Molecular – UAM (IUBM-UAM), Departamento de Biología Molecular, Universidad Autónoma de Madrid, 28049 Madrid, Spain; ²Centro de Biología Molecular Severo Ochoa, Consejo Superior de Investigaciones Científicas - Universidad Autónoma de Madrid (CSIC-UAM), 28049 Madrid, Spain

MtDNA replication stress and innate immune signalling

Dusanka Milenkovic, Amir Bahat, Eileen Cors, Mabel Barnett, Thomas Langer

Max Planck Institute for Biology of Ageing, Germany

Inflammatory cardiomyopathy and heart failure caused by impaired inner membrane integrity

Erminia Donnarumma¹, Michael Kohlhaas², Elodie Vimont¹, Marcio Ribeiro¹, Etienne Kornobis³, Thibault Chaze⁴, Mariette Matondo⁴, Christoph Maack², Timothy Wai¹

¹Institut Pasteur, Mitochondrial Biology Group, CNRS UMR 3691, Université Paris Cité, Paris, France; ²Department of Translational Research, Comprehensive Heart Failure Center (CHFC), Medical Clinic 1, University ClinicWürzburg,Würzburg, Germany; ³Institut Pasteur, Biomics Technological Platform, Université Paris Cité, Paris, France; ⁴Institut Pasteur, Proteomics Core Facility, MSBio UtechS, UAR CNRS 2024, Université Paris Cité, Paris, France

Lack of SIRT3 results in a constitutive IFNbeta release and protects against viral infection

Carolina Meroño Ortega^1,2, Yara Cuesta Valero^1,2, Marta Pascual Fernández^1,2, Natalia García Acosta^1,2, Javier Traba Domínguez^1,2

¹Instituto Universitario de Biología Molecular – UAM (IUBM-UAM), Departamento de Biología Molecular, Universidad Autónoma de Madrid, 28049 Madrid, Spain; ²Centro de Biología Molecular Severo Ochoa, Consejo Superior de Investigaciones Científicas - Universidad Autónoma de Madrid (CSIC-UAM), 28049 Madrid, Spain

Mitochondrial DNA variation alters cell-mediated and humoral innate immune responses

Tiina Susanna Salminen¹, Laura Vesala¹, Yuliya Basikhina¹, Megan Kutzer², Tea Tuomela¹, Katy Monteith², Ryan Lucas², Arun Prakash², Pedro Vale²

¹Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland; ²Institute of Evolutionary Biology, School of Biological Sciences, University of Edinburgh, UK

Iron homeostasis in mitochondria is critical for the survival of T cells

Ajay Kumar, Chenxian Yee, Afia Nkansah, Thomas Decoville, Emily Yarosz, Garrett Forgo, Young-Ah Seo, Thomas Sanderson, Cheong-Hee Chang

University of Michigan, United States of America

Inflammatory conditions, redox status and c-miRNAs as potential predictors of vascular damage in type 2 diabetes mellitus patients.

Iryna Rusanova Rusanova^1,2,3, Ayauly Duisenbek⁴, Gabriela C. Lopez-Armas⁵, José M. Aguilar Benítez⁶, María D. Avilés-Pérez^3,7, Arailym Yessenbekova⁴, Nurzhanyat Ablaikhanova⁴, Germaine Escames^2,3,8, Darío Acuña-Castroviejo^2,3,8

¹Department of Biochemistry and Molecular Biology I, Faculty of Science, University of Granada, Spain; ²Institute of Biotechnology, Biomedical Research Center, Health Sciences Technology Park, University of Granada, Granada, Spain; ³Centro de Investigación Biomédica en Red Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto de Investigación Biosanitaria (Ibs), Granada, San Cecilio University Hospital, Granada, Spain; ⁴Department of Biophysics, Biomedicine and Neuroscience, Al-Farabi Kazakh National University, Almaty, Kazakhstan; ⁵Departamento de Investigación y Extensión, Centro de Enseñanza Técnica Industrial; Guadalajara, Jalisco, México; ⁶Hospital de Alcalá la Real, Andalucia, Spain; ⁷Endocrinology and Nutrition Unit, Instituto de Investigación Biosanitaria de Granada (Ibs.GRANADA), University Hospital Clínico San Cecilio, Granada, Spain.; ⁸Department of Physiology, Faculty of Medicine, University of Granada.

Loss of pathogenic mitochondrial tRNA mutations during the development of adaptive immune responses

Jingdian Zhang^1,2, Camilla Koolmeister^1,2, Jinming Han³, Roberta Filograna^1,2, Martin Engvall⁴, Anna Wredenberg^1,2,4, Gunilla B. Karlsson Hedestam⁵, Xaquin Castro Dopico⁵, Joanna Rorbach^1,2

¹Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm 17165, Sweden; ²Max Planck Institute Biology of Ageing-Karolinska Institutet Laboratory, Karolinska Institutet, Stockholm 17165, Sweden.; ³Applied Immunology and Immunotherapy, Department of Clinical Neuroscience, Center for Molecular Medicine, Karolinska University Hospital, Stockholm 17176, Sweden; ⁴Center for Inherited Metabolic Diseases, Karolinska University Hospital, Stockholm 17164, Sweden.; ⁵Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm 17177, Sweden.

Role of mitochondrial dynamics in abdominal aortic aneurysm

Alexis Richard¹, Alicia Baptista-Vicente¹, Maroua Eid^1,2, Agnès Toutain-Barbelivien¹, Linda Grimaud¹, Bertrand Toutain¹, Clément Tetaud¹, Daniel Henrion¹, Olivier Fouquet^1,2, Laurent Loufrani¹

¹UMR CNRS 6015, INSERM U1083, MitoVasc Institute, CarMe Team, University of Angers, France; ²CHU of Angers, France

Between benefit and harm – the effect of antibiotics-induced mitochondrial stress on innate immune responses

Tilman Tietz, Laura Vesala, Tea Tuomela, Mahmudul H. Tanvir, Tiina S. Salminen

Tampere University, Finland

Mitochondrial thermo-profiles of diverse cell lines show reduction of thermo-stability at pathophysiological conditions

Mügen Terzioglu¹, Kristo Veeroja¹, Toni Montanen¹, Maria Carretero-Junquera², Tiina Susanna Salminen¹, Takeharu Nagai³, Howard Jacobs¹

¹Tampere University, Finland; ²University of Copenhagen; ³Osaka University

Mitochondrial thermogenesis and thermal adaptation in fibroblasts

Kateryna Gaertner¹, Mügen Terzioglu¹, Riikka Tapanainen², Jaakko Pohjoismäki², Eric Dufour¹, Sina Saari¹

¹Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland; ²Department of Environmental and Biological Sciences, University of Eastern Finland, Joensuu, Finland

Effects of SIRT1 modulators in a pregnancy-induced mouse model of primary mitochondrial cardiomyopathy

Nicole M. Sayles^1,2, Gabriella Casalena², Holly E. Holmes³, Ryan W. Dellinger³, Hibiki Kawamata², Giovanni Manfredi²

¹Neuroscience Graduate Program, Will Cornell Graduate School of Medical Sciences, 1300 York Ave, New York, NY 10065, USA; ²Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, 407 East 61st Street, New York, NY 10065, USA.; ³Elysium Health New York, New York, NY 10013, USA

A common genetic variant of a mitochondrial RNA processing enzyme predisposes to insulin resistance

Giulia Rossetti^1,2,3, Judith Ermer^1,2,3, Maike Stentenbach^1,2,3, Stefan Siira^1,2,3, Tara Richman^1,2,3, Dusanka Milenkovic⁴, Kara Perks^1,2,3, Laetitia Hughes^1,2,3, Emma Jamieson⁵, Gulibaikelamu Xiafukaiti⁶, Natalie Ward⁷, Satoru Takahashi⁶, Nicola Gray⁸, Helena Viola⁹, Livia Hool^9,10, Oliver Rackham^1,2,11,12, Aleksandra Filipovska^1,2,3,13,

¹Harry Perkins Institute of Medical Research, Nedlands, Western Australia 6009, Australia; ²ARC Centre of Excellence in Synthetic Biology, QEII Medical Centre, Nedlands, Western Australia 6009, Australia; ³Centre for Medical Research, The University of Western Australia, QEII Medical Centre, Nedlands, Western Australia 6009, Australia.; ⁴Max Planck Institute for Biology of Ageing, D-50931 Cologne, Germany; ⁵Faculty of Health and Medical Sciences, Medical School, The Rural Clinical School of Western Australia, The University of Western Australia, Bunbury, Western Australia 6230, Australia; ⁶Department of Anatomy and Embryology, Faculty of Medicine, Laboratory Animal Resource Center (LARC), and Transborder Medical Research Center, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan; ⁷Dobney Hypertension Centre, Medical School, The University of Western Australia, Perth, Western Australia, Australia; ⁸Australian National Phenome Centre, Centre for Computational and Systems Medicine, Health Futures Institute, Murdoch University, Harry Perkins Building, Perth, Western Australia 6150, Australia; ⁹School of Human Sciences (Physiology), The University of Western Australia, Crawley, Western Australia 6009, Australia.; ¹⁰Victor Chang Cardiac Research Institute, Darlinghurst, Sydney, New South Wales 2010, Australia.; ¹¹Curtin Medical School, Curtin University, Bentley, Western Australia 6102, Australia; ¹²Curtin Health Innovation Research Institute, Curtin University, Bentley, Western Australia 6102, Australia.; ¹³Telethon Kids Institute, Northern Entrance, Perth Children's Hospital, 15 Hospital Avenue, Nedlands, Western Australia, Australia.

Metformin enhanced the Effect of Ketogenic Diet and low Dose of Cyclophosphamide in MYCN-amplified Neuroblastoma

Luca Catalano¹, Sepideh Aminzadeh-Gohari¹, Daniela Weber¹, Julia Tevini¹, Thapa Maheshwor², Rodolphe Poupardin³, Sophia Derdak⁴, Victoria Stefan¹, William Smiles¹, Barbara Kofler¹

¹Paracelsus Medical University, Austria; ²Shuzhao Li Lab The Jackson Laboratory for Genomic Medicine, Farmington, USA; ³Spinal Cord Injury and Tissue Regeneration Center Salzburg (SCI-TReCS), Cell Therapy Institute; ⁴Core Facilities, Medical University of Vienna, Vienna, Austria

Respiratory complex I deficiency triggers integrated stress response upon metabolic challenge

Sara Milioni^1,2, Manuela Sollazzo¹, Claudia Zanna³, Ivana Kurelac², Monica De Luise², Luigi D'Angelo¹, Erika Fernandez-Vizarra⁴, Anna Ghelli¹, Giuseppe Gasparre², Anna Maria Porcelli¹, Luisa Iommarini¹

¹University of Bologna, Department of Pharmacy and Biotechnology, Italy; ²University of Bologna, Department of Medical and Surgical Sciences, Italy; ³University of Bologna, Department of Biomedical and Neuromotor Sciences, Italy; ⁴University of Padua, Department of Biomedical Sciences, Italy

Stress responses in a novel mitochondrial myopathy mouse model

Sukru Anil Dogan

Bogazici University, Turkey

The multifaceted role of GDF15 in mitochondrial muscle disease and its synergistic action with FGF21

Anastasiia Marmyleva¹, Nahid Khan¹, Liliya Euro^1,2, Sonja Jansson^1,2, Harding Luan³, Anu Suomalanen^1,2

¹University of Helsinki, Finland; ²Nadmed Ltd, Helsinki, Finland; ³NGM Biopharmaceuticals, South San Francisco, CA 94080, USA

Red 630 light transcranial LED therapy (RL-TCLT) stimulates bioenergetic mitochondrial function, enhancing neuronal arborization and reducing hippocampal memory loss in aged SAMP8 mice.

Claudia Jara¹, Italo Fuentes¹, Matías Lira^1,2, Debora Buendía³, Cheril Tapia-Rojas^1,2

¹Neurobiology of Aging Lab, CEBICEM, Universidad San Sebastián, Chile; ²Centro Ciencia & Vida, Fundación Ciencia & Vida, Chile.; ³Escuela de Ingeniería Civil Biomédica, Universidad de Valparaíso, Chile.

The mitokine GDF15 correlates with differentially dietary fat intake in pregnancies with intrauterine growth restriction

Mariona Guitart-Mampel^1,2,3, Sara Castro-Barquero⁴, Ana María Ruiz-Leon⁵, Judith Cantó-Santos^1,2,3, Laura Valls-Roca^1,2,3, Laia Farré-Tarrats^1,2,3, Félix Andújar-Sánchez^1,2,3, Lina Youssef^3,4, Laura Garcia-Otero^3,4, Kilian Vellvé^3,4, Ana Sandra Hernández^3,4, Ester Tobias^1,2,3, Rosa Casas⁵, Fàtima Crispi^3,4, Eduard Gratacós^3,4, Francesc Cardellach^1,2,3, Francesc Josep García-García^1,2,3, Glòria Garrabou^1,2,3

¹Inherited metabolic diseases and muscular disorders Lab, Cellex - Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Faculty of Medicine and Health Science - University of Barcelona (UB), 08036 Barcelona, Spain; ²Internal Medicine Unit, Hospital Clínic of Barcelona, 08036 Barcelona, Spain; ³Biomedical Network Research Centre on Rare Diseases (CIBERER), Instituto de Salud Carlos III, 28029 Madrid, Spain; ⁴BCNatal—Barcelona Centre for Maternal-Foetal and Neonatal Medicine (Hospital Clínic and Hospital Sant Joan de Déu), IDIBAPS, University of Barcelona, 08036 Barcelona, Spain; ⁵Medicine Department, Faculty of Medicine. CIBEROBN Obesity and Nutrition Physiopathology. Institut de Recerca en Nutrició i Seguretat Alimentaria (INSA-UB). University of Barcelona, Barcelona, Spain. Fundación Dieta Mediterránea, Barcelona, Spain,

Telomerase is crucial for mitochondrial function in human cardiomyocytes

Shambhabi Chatterjee^1,2,3, Megan Leach-Mehrwald¹, Cheng-Kai Huang¹, Ke Xiao^1,3, Dongchao Lu¹, Thomas Thum^1,2,3, Christian Bär^1,2,3

¹Institute of Molecular and Translational Therapeutic Strategies (IMTTS), Hannover Medical School, Hannover, Germany; ²REBIRTH Center for Translational Regenerative Medicine, Hannover Medical School, Hannover, Germany; ³Fraunhofer Institute for Toxicology and Experimental Medicine, Hannover, Germany

Drug repositioning as a mitochondrial-targeted therapeutic approach for neurodegenerations associated with OPA1 mutations

Valentina Del Dotto¹, Serena J. Aleo¹, Alessandra Maresca², Anna Ghelli³, Michela Rugolo³, Anna Maria Porcelli³, Enrico Baruffini⁴, Alessandra Baracca¹, Valerio Carelli^1,2, Claudia Zanna¹

¹Dept. Biomedical and NeuroMotor Sciences (DIBINEM), University of Bologna, Italy; ²IRCCS Istituto delle Scienze Neurologiche di Bologna, Programma di Neurogenetica, Bologna, Italy; ³Dept. Pharmacy and Biotechnology (FABIT), University of Bologna, Italy; ⁴Dept. Chemistry, Life Science and Environmental Sustainability, University of Parma, Italy

Mitochondria hormesis delays aging and associated diseases in C. elegans impacting on key ferroptosis players

Alfonso Schiavi¹, Eva Salveridou¹, Vanessa Brinkmann¹, Anjumara Shaik¹, Ralph Menzel², Sumana Kalyanasundaram³, Ståle Nygård³, Hilde Nilsen³, Natascia Ventura^1,4

¹Leibniz Research Institute for Environmental Medicine (IUF), Düsseldorf, Germany; ²Humboldt-Universität zu Berlin, Berlin, Germany; ³Institute of Clinical Medicine, Department of Clinical Molecular Biology, University of Oslo, Norway; ⁴Institute of Clinical Chemistry and Laboratory Diagnostic, Medical Faculty, Heinrich Heine University of Düsseldorf, Germany

Cross-talk between mitochondria and immunoproteasomes upon mitochondrial dysfunction

Vyshnavi Tallapaneni, Agnieszka Chacinska

IMol Polish Academy of Sciences, Warsaw, Poland

Diagnostic examination of kinase inhibitors by bioenergetic profiling of cancer cell models reveals off-target drug effects

Omar Torres-Quesada^1,2, Sophie Strich², Andreas Feichtner^2,3, Selina Schwaighofer³, Carolina Doerrier⁴, Sabine Schmitt⁴, Erich Gnaiger⁴, Eduard Stefan^2,3

¹Division of Medical Biochemistry, Medical University of Innsbruck, Innrain 80/82, 6020 Innsbruck, Austria; ²Tyrolean Cancer Research Institute (TKFI), Innrain 66, 6020 Innsbruck, Austria.; ³Institute of Biochemistry and Center for Molecular Biosciences, University of Innsbruck, Innrain 80/82, 6020 Innsbruck, Austria; ⁴Oroboros Instruments, Schoepfstrasse 18, 6020 Innsbruck, Austria

Leukemia cells undergo metabolic remodeling and become vulnerable to mitochondrial translation inhibition

Eva Nyvltova, Priyanka Maiti, Tyler A. Cunningham, Paola Manara, Matthew D. Wiefels, Jonathan H. Schatz, Antoni Barrientos, Flavia Fontanesi

University of Miami, United States of America

Metabolic reprogramming of bone-marrow mesenchymal stem cells leads to impaired bone formation in m.3243A>G carriers

Paula Fernandez Guerra^1,2, Ahmed Sayed^1,2, Pernille Kjær^1,2, Tina K. Nielsen^1,2, Nicholas Ditzel^1,2, Simone K. Terp³, Charlotte Ejersted¹, Jesper S. Thomsen⁴, Herma Renkema⁵, Jan Smeitink^5,6, John Vissing⁷, Per H. Andersen⁸, Kent Søe^9,10,11, Thomas L. Andersen^9,10,12, Moustapha Kassem^1,2, Morten Frost^1,2,13, Anja L. Frederiksen¹⁴

¹Dept. of Endocrinology, Odense University Hospital (OUH), Odense, Denmark; ²The Molecular Endocrinology & Stem Cell Research Unit (KMEB), Molecular Endocrinology, University of Southern (SDU), Denmark; ³Dept. of Molecular Diagnostics, Aalborg University Hospital, Aalborg; ⁴Department of Biomedicine, Aarhus University, Aarhus, Denmark; ⁵Khondrion BV, Nijmegen, The Netherlands; ⁶Radboud Center for Mitochondrial Medicine, Radboud University Medical Center, Nijmegen, The Netherlands; ⁷Dept. of Neurology, Rigshospitalet, Copenhagen, Denmark; ⁸Dept. of Endocrinology, Hospital of Southwest, Esbjerg, Denmark; ⁹Dept. of Clinical Research, SDU, Denmark; ¹⁰Clinical Cell Biology, Dept. of Pathology, OUH, Denmark; ¹¹Dept. of Molecular Medicine, SDU, Denmark; ¹²Dept. of Forensic Medicine, AU, Denmark; ¹³Steno Diabetes Centre Odense, OUH, Denmark; ¹⁴Dept. of Clinical Genetics, Aalborg University Hospital, Denmark

Nucleus Associated Mitochondria (NAM) drive a cholesterol-mediated mechanism of Temozolomide resistance in glioblastoma cells

Daniela Strobbe¹, Mardja Bueno², Claudia De Vitis³, Danilo Faccenda⁴, Krenare Bruqi¹, Elena Romano¹, Gurtej K Dhoot⁴, Ivi J Bistrot⁵, Fabio Klamt⁵, Luana S Lenz², Eduardo Cremonese Filippi-Chiela^2,11, Pietro Ivo D'Urso⁶, Imogen Lally⁷, Laura Falasca⁸, Rita Mancini³, Federico Roncaroli⁹, Guido Lenz², Michelangelo Campanella^4,10

¹Department of Biology, University of Rome Tor Vergata, 00133, Rome, Italy; ²Department of Biophysics, and Centre of Biotechnology, Universida de Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil; ³Department of Clinical and Molecular Medicine, University of Rome La Sapienza, 00198 Rome, Italy; ⁴Department of Comparative Biomedical Sciences, The Royal Veterinary College, University of London; ⁵Department of Biochemistry, Universidade Federal do Rio Grandedo Sul (UFRGS), Porto Alegre, RS, Brazil; ⁶Department of Neurosurgery, Manchester Academic Health Science Centre, Northern Care Alliance, Salford UK; ⁷Department of Cellular Pathology, Northern Care Alliance, Salford UK; ⁸Laboratory of Electron Microscopy, Department of Epidemiology and Preclinical Research National Institute for Infectious Diseases Lazzaro Spallanzani-IRCCS, Rome, Italy; ⁹Geoffrey Jefferson Brain Research Centre, Division of Neuroscience, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK; ¹⁰UCL Consortium for Mitochondrial Research, University College London, WC1 6BT, London, UK; ¹¹Experimental Research Center, Hospital de Clínicas de Porto Alegre, Porto Alegre 90035-903, Rio Grande do Sul, Brazil

Upregulation of COX4-2 via HIF-1α and replicative stress and impaired nuclear DNA damage response in mitochondrial COX4-1 deficiency

Liza Douiev (Charpak), Chaya Miller, Ann Saada (Reisch)

Hadassah Medical Center and Hebrew University of Jerusalem, Israel

Analysis of mitochondrial function using novel detection reagents

Yasuka Komatsu¹, Masaki Murai¹, Naoko Yamamoto¹, Masakazu Nakakubo¹, Munetaka Ishiyama¹, Toshitada Yoshihara²

¹DOJINDO LABORATORIES; ²Gunma University

Mitochondrial dynamics in cancer cells: relationship between the F1Fo-ATPase inhibitor IF1 and the mitochondrial the fusion-fission machinery

Claudia Zanna, Silvia Grillini, Riccardo Righetti, Valentina Del Dotto, Giancarlo Solaini, Alessandra Baracca

Department of Biomedical and Neuromotor Sciences, University of Bologna

Melatonin overcomes resistance to CDDP treatment associated with the overexpression of the ATP-driven transmembrane efflux pumps

Alba López Rodríguez^1,2,3, César Rodríguez Santana^1,2,3, Laura Martínez Ruíz^1,2,3, Javier Florido Ruiz^1,2,3, Germaine Escames Rosa^1,2,3

¹Institute of Biotechnology; ²Biomedical Research Centre; ³University of Granada, Spain

Therapeutic capacity of exercise and melatonin against inflammation and mitochondrial dysfunction in the iMS-Bmal1-/- model of sarcopenia.

Yolanda Ramírez Casas^1,2, José Fernández Martínez^1,2, Paula Aranda Martínez^1,2, Germaine Escames Rosa^1,2,3, Darío Acuña Castroviejo^1,2,3

¹Departamento de Fisiología, Facultad de Medicina, Centro de Investigación Biomédica (CIBM), Universidad de Granada, Granada, Spain.; ²Instituto de Investigación Biosanitaria de Granada (Ibs.Granada), Granada, Spain.; ³Centro de Investigación Biomédica en Red de Fragilidad y Envejecimiento Saludable (CIBERfes), Madrid, Spain.

Astrocytic CREB neuroprotection in experimental traumatic brain injury is associated with regulation of energetics and lipid metabolism: role of lactate

Irene Fernández González¹, Abel Eraso Pichot², Mariona Jové³, Manel Portero Otin³, Levi Wood⁴, Mercé Giralt¹, Juan Manuel Hidalgo¹, Luis Pardo^1,5, Arantxa Golbano¹, Roser Masgrau¹, Elena Galea^1,6, Elisenda Sanz¹, Albert Quintana¹

¹Universitat Autònoma de Barcelona, Institut de Neurociències, Bellaterra, Spain; ²Neurocentre Magendie, Inserm U1215, Bordeaux, France; ³Universitat de Lleida, Institut de Recerca Biomèdica, Lleida, Spain; ⁴Georgia Institute of Technology, Georgia, United States of America; ⁵Beatson Institute for Cancer Research, Glasgow, United Kingdom; ⁶ICREA, Barcelona, Spain

ROS induced mitochondrial hormesis partially protects from SGAs mitochondrial toxicity and cardiovascular disease.

Maria Monsalve¹, Laura Doblado¹, Gaurangkumar Patel¹, Salvador Pérez², Antonio Martínez³, Susana Cadenas⁴, Juan Sastre², Francisco Abad Santos³, Ángel Luis García-Villalón⁵, Miriam Granado⁵

¹Instituto de Investigaciones Biomédicas Alberto Sols, Spain; ²Universidad de Valencia; ³Instituto de Investigación Sanitaria La Princesa; ⁴CBMSO; ⁵Universidad Autónoma de Madrid

Mitochondrial metabolism in breast cancer and cancer-associated adipose tissue

Aleksandra Jankovic¹, Tamara Zakic¹, Marta Budnar Soskic¹, Biljana Srdic Galic², Aleksandra Korac³, Bato Korac^1,3

¹Institute for Biological Research "Sinisa Stankovic"- National Institute of Republic of Serbia, University of Belgrade, Serbia; ²Faculty of Medicine, University of Novi Sad, Novi Sad, Serbia; ³Faculty of Biology, University of Belgrade, Belgrade, Serbia

Reorganization of the energy metabolism: from colon polyps to colorectal cancer

Tuuli Käämbre¹, Leenu Reinsalu¹, Egle Rebane-Klemm Rebane-Klemm¹, Igor Shevchuk¹, Vahur Valvere², Jelena Bogovskaja², Marju Puurand¹

¹National Institute of Chemical Physics and Biophysics, Estonia; ²North Estonia Medical Centre, Oncology and Haematology Clinic, Tallinn, Estonia

Role of NcoR1 and PGC-1 for mitochondrial dysfunction in skeletal muscle of ovariectomized mice

Jiyun Ahn, Tae Youl Ha

Korea Food Research Institute, Korea, Republic of (South Korea)

Melatonin drives apoptosis in head and neck cancer by increasing mitochondrial ROS generated via reverse electron transport

Laura Martinez Ruiz^1,2,3, Javier Florido^1,2,3, César Rodríguez Santana^1,2, Alba López Rodríguez^1,2, Germaine Escames^1,2,3

¹Institute of Biotechnology, Biomedical Research Center, Health Sciences Technology Park, University of Granada, Granada, Spain; ²Department of Physiology, Faculty of Medicine, University of Granada, Granada, Spain; ³Centro de Investigación Biomédica en Red Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto de Investigación Biosanitaria (Ibs), Granada, San Cecilio University Hospital, Granada, Spain

Differences in life expectancy of rats with inherited high and low exercise capacity correlate with mitochondrial function in skeletal muscle

Estelle Heyne¹, Lauren G. Koch², Steven L. Britton³, Torsten Doenst¹, Michael Schwarzer¹

¹University Hospital of Friedrich-Schiller-University Jena, Germany; ²The University of Toledo, Toledo, OH; ³University of Michigan, Ann Arbor, MI

Modulation of the activity of human mitochondrial protease complex ClpXP as potential therapeutic strategy for cancer

Francesca Rizzo, Morena Miciaccia, Antonella Cormio, Savina Ferorelli, Maria Grazia Perrone, Antonio Scilimati, Paola Loguercio Polosa

University of Bari "Aldo Moro", Italy

Mitochondrial respiratory function in peripheral blood cells across the human life span

Eleonor Åsander Frostner¹, Johannes Ehinger^1,2, Emil Westerlund^1,3, Michael Karlsson⁴, Gesine Paul⁵, Fredrik Sjövall^1,6, Eskil Elmér¹

¹Lund University, Department of Clinical Sciences Lund, Mitochondrial Medicine, Lund, Sweden; ²Lund University, Skåne University Hospital, Department of Clinical Sciences Lund, Otorhinolaryngology, Head and Neck Surgery, Lund, Sweden; ³A&E Department, Kungälv Hospital, Kungälv, Sweden; ⁴Department of Neurosurgery, Rigshospitalet, Copenhagen, Denmark; ⁵Lund University, Department of Clinical Sciences Lund, Translational Neurology Group and Wallenberg Center for Molecular Medicine, Lund, Sweden; ⁶Skåne University Hospital, Department of Intensive- and perioperative Care, Malmö, Sweden

Diagnostic value of urine organic acid analysis for primary mitochondrial disorders

Tatiana Krylova, Marina Kurkina, Polina Baranova, Polina Tsygankova, Yulia Itkis, Ekaterina Zakharova

Research Centre for Medical Genetics, Russian Federation

Exercise and melatonin counteract Bmal1 loss-dependent sarcopenia in mouse skeletal muscle by improving mitochondrial ultrastructure and function

José Fernández-Martínez^1,2, Yolanda Ramírez-Casas^1,2, Paula Aranda-Martínez^1,2, Germaine Escames^1,2,3, Darío Acuña-Castroviejo^1,2,3

¹Departamento de Fisiología, Facultad de Medicina, Centro de Investigación Biomédica (CIBM), Universidad de Granada, Granada, Spain.; ²Instituto de Investigación Biosanitaria de Granada (Ibs.Granada), Granada, Spain.; ³Centro de Investigación Biomédica en Red de Fragilidad y Envejecimiento Saludable (CIBERfes), Madrid, Spain.

Uncovering the OXPHOS complexes' interdependence mechanism

Kristýna Čunátová¹, Marek Vrbacký¹, Guillermo Puertas-Frias¹, Josef Houštěk¹, Jiří Neužil², Alena Pecinová¹, Petr Pecina¹, Tomáš Mráček¹

¹Laboratory of Bioenergetics, Institute of Physiology, Czech Academy of Sciences, Czech Republic; ²Laboratory of Molecular Therapy of Cancer, Institute of Biotechnology, Czech Academy of Sciences, Vestec, Czech Republic

Challenging the norm – outcome measure selection for evaluating therapeutic response in patients with Primary Mitochondrial Myopathy after 12 weeks of treatment with REN001, a novel PPARδ agonist.

Lisa Alcock^1,2, Renae J. Stefanetti^2,3, Oliver Russell^2,3, Alisdair P. Blain^2,3, Jane Newman^2,3,4, Naomi J.P. Thomas^2,3,4, Charlotte Warren^2,3, Huizhong Su^2,3, Philip Brown⁵, David Houghton^2,3, Heather Hunter⁵, Helen Tuppen^2,3, Gavin Falkous⁴, Robert W. Taylor^2,3,4, Albert Z. Lim^2,3,4, Yi Shiau Ng^2,3,4, Catherine Feeney^2,3,4, Iwona Skorupinska⁶, Louise Germain⁷, Enrico Bugiardini⁶, Michael G. Hanna⁶, Robert McFarland^2,3,4, Robert D.S. Pitceathly^6,7, Lynn Rochester^1,2,5, Gráinne S. Gorman^2,3,4

¹Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, UK; ²National Institute for Health and Care Research (NIHR) Newcastle Biomedical Research Centre (BRC), Newcastle University and The Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK; ³Wellcome Centre for Mitochondrial Research, Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, UK; ⁴NHS Highly Specialised Service for Rare Mitochondrial Disorders, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK; ⁵The Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK; ⁶Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology and The National Hospital for Neurology and Neurosurgery, London, UK; ⁷NHS Highly Specialised Service for Rare Mitochondrial Disorders, Queen Square Centre for Neuromuscular Diseases, The National Hospital for Neurology and Neurosurgery, London, UK

Indirect comparison of lenadogene nolparvovec gene therapy versus natural history in m.11778G>A MT-ND4 Leber hereditary optic neuropathy patients

Nancy J. Newman¹, Mark L. Moster², Valerio Carelli³, Patrick Yu-Wai-Man⁴, Valerie Biousse¹, Prem S. Subramanian⁵, Catherine Vignal-Clermont⁶, An-Guor Wang⁷, Sean P. Donahue⁸, Bart P. Leroy⁹, Robert C. Sergott², Thomas Klopstock¹⁰, Alfredo A. Sadun¹¹, Gema Rebolleda Fernández¹², Bart K. Chwalisz¹³, Rudrani Banik¹⁴, Magali Taiel¹⁵, José-Alain Sahel¹⁶

¹Departments of Ophthalmology, Neurology and Neurological Surgery, Emory University School of Medicine, Atlanta, GA, USA; ²Departments of Neurology and Ophthalmology, Wills Eye Hospital and Thomas Jefferson University, Philadelphia, PA, USA; ³IRCCS Istituto delle Scienze Neurologiche di Bologna, Programma di Neurogenetica, Bologna, Italy; ⁴Cambridge Centre for Brain Repair and MRC Mitochondrial Biology Unit, Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK; ⁵Sue Anschutz-Rodgers University of Colorado Eye Center, University of Colorado School of Medicine, Aurora, CO, USA; ⁶Department of Neuro Ophthalmology and Emergencies, Rothschild Foundation Hospital, Paris, France; ⁷Department of Ophthalmology, Taipei Veterans General Hospital, National Yang Ming Chiao Tung University, Taipei, Taiwan; ⁸Department of Ophthalmology, Neurology, and Pediatrics, Vanderbilt University, and Vanderbilt Eye Institute, Vanderbilt University Medical Center, Nashville, TN, USA; ⁹Department of Ophthalmology and Center for Medical Genetics, Ghent University Hospital, and Department of Head & Skin, Ghent University, Ghent, Belgium; ¹⁰Department of Neurology, Friedrich-Baur-Institute, University Hospital, Ludwig-Maximilians-University Munich, Munich, Germany; ¹¹Doheny Eye Institute, UCLA School of Medicine, Los Angeles, CA, USA; ¹²Department of Ophthalmology, Alcala University, Madrid, Spain; ¹³Department of Ophthalmology, Massachusetts Eye & Ear, Harvard Medical School, Boston, MA, USA; ¹⁴Department of Ophthalmology, Icahn School of Medicine at Mount Sinai, New York, NY, USA; ¹⁵GenSight Biologics, Paris, France; ¹⁶Sorbonne Université, INSERM, CNRS, Institut de la Vision, Paris, France

The mitochondrial stress, brain imaging, and epigenetics study (MiSBIE)

Caroline Trumpff¹, Anna S Monzel¹, Catherine Kelly¹, Kris Engelstad¹, Shufang Li¹, Kalpita Karan¹, Gabriel Sturm¹, Jeremy Michelson¹, Mangesh Kurade¹, Vincenzo Lauriola¹, Sophia Tepler¹, Grace Liu¹, Peter Shapiro¹, Robert-Paul Juster², Stephanie Assuras¹, Richard Sloan¹, Michel Thiebaut de Schotten³, Tor Wager⁴, Michio Hirano¹, Martin Picard¹

¹Columbia University Irving Medical Center, United States of America; ²Université de Montréal, Canada; ³Université de Bordeaux, France; ⁴Dartmouth College, Uniter States of America

Free cytosolic-mitochondrial DNA triggers a potent type-I Interferon response in Kearns–Sayre patients counteracted by mofetil mycophenolate

Michela Di Nottia¹, Ivan Caiello², Alessandra Torraco¹, Martina Zoccola¹, Fabrizio De Benedetti², Carlo Dionisi-Vici³, Enrico Bertini⁴, Diego Martinelli³, Rosalba Carrozzo¹

¹Unit of Cellular Biology and Diagnosis of Mitochondrial Diseases, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy; ²Division of Rheumatology, Bambino Gesù Children’s Hospital, IRCCS, Rome, Italy; ³Division of Metabolism, Bambino Gesù Children’s Hospital, IRCCS, Rome, Italy; ⁴Research Unit of Muscular and Neurodegenerative Disorders, Bambino Gesù Children’s Hospital, IRCCS, Rome, Italy

Fumarate induces mtDNA release via mitochondrial-derived vesicles and drives innate immunity

Vincent Paupe¹, Vincent Zecchini², Christian Frezza^2,3, Julien Prudent¹

¹Medical Research Council, MBU,University of Cambridge, UK; ²Medical Research Council Cancer Unit,University of Cambridge, UK; ³CECAD Research Centre, University of Cologne, Cologne, Germany

Impaired inflammatory response to lipopolysaccharide in fibroblasts from patients with long-chain fatty acid oxidation disorders

Signe Mosegaard^1,2, Krishna Twayana³, Simone Denis¹, Jeffrey Kroon⁴, Bauke Schomakers⁵, Michel van Weeghel⁵, Riekelt Houtkooper¹, Rikke Olsen², Christian Holm³

¹Laboratory Genetic Metabolic Diseases, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands; ²Research Unit for Molecular Medicine, Department of Clinical Medicine, Aarhus University and Aarhus University Hospital, Aarhus, Denmark; ³Department of Biomedicine, Aarhus Research Center for Innate Immunology, Aarhus University, Aarhus, Denmark; ⁴Department of Experimental Vascular Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands; ⁵Core Facility Metabolomics, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands

Functional characterisation of the human mitochondrial disaggregase, CLPB

Megan J Baker¹, Alexander J Anderson¹, Catherine S Palmer¹, David R Thorburn^2,3, Ann E Frazier², Diana Stojanovski¹

¹Department of Biochemistry and Pharmacology, The Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Parkville VIC 3010, Australia; ²Murdoch Children’s Research Institute, Royal Children’s Hospital and Department of Paediatrics, The University of Melbourne, Parkville VIC 3052, Australia; ³Victorian Clinical Genetics Services, Royal Children’s Hospital, Melbourne, Parkville VIC 3052, Australia

High fat diet ameliorates the mitochondrial cardiomyopathy of CHCHD10 mutant mice

Hibiki Kawamata, Nneka Southwell, Nicole Sayles, Giovanni Manfredi

Weill Cornell Medicine, United States of America

The mitochondrial inhibitor IF1 has a dual role in cancer

Martina Grandi¹, Cristina Gatto¹, Simone Fabbian², Natascia Tiso³, Francesco Argenton³, Massimo Bellanda², Giancarlo Solaini¹, Valentina Giorgio*¹, Alessandra Baracca*¹

¹Department of Biomedical and Neuromotor Sciences, University of Bologna; ²Department of Chemical Science, University of Padova; ³Department of Biology, University of Padova, Padova

Tractography of the anterior optic pathway provides biomarkers of pathological change in Leber’s Hereditary Optic Neuropathy

David Neil Manners^2,4, Giovanni Sighinolfi^1,2, Laura Ludovica Gramegna¹, Chiara La Morgia², Alessandro Carrozzi¹, Cristiana Fiscone^1,2, Claudia Testa^2,3, Raffaele Lodi^1,2, Valerio Carelli^1,2, Caterina Tonon^1,2

¹Department of Biomedical and Neuromotor Sciences, University of Bologna, Italy; ²IRCCS Instituto delle Scienze Neurologiche di Bologna, Bologna, Italy; ³Department of Physics and Astronomy, University of Bologna, Italy; ⁴Department of Life Quality Studies, University of Bologna

A novel role of Keap1/PGAM5 complex: ROS sensor for inducing mitophagy

Akbar Zeb¹, Vinay Choubey¹, Ruby Gupta¹, Malle Kuum¹, Dzhamilja Safiulina¹, Annika Vaarmann¹, Nana Gogichaishvili¹, Mailis Liiv¹, Ivar Ilves¹, Kaido Tämm¹, Vladimir Veksler², Allen Kaasik¹

¹University of Tartu, Estonia; ²University Paris-Saclay, INSERM UMR-S, France

Optimising interventional trials: how natural history studies and digital technologies can drive innovation

Gráinne Gorman¹, Michelangelo Mancuso²

¹Wellcome Centre for Mitochondrial Research, Newcastle University, Newcastle upon Tyne, United Kingdom; ²University of Pisa, Italy

Identifying circulating biomarkers to monitor mitochondrial disease severity

Rohit Sharma

Massachusetts General Hospital, United States of America

National mitochondrial disease registry in England: linking genetics with routinely collected healthcare data

Katherine R Schon^1,2, Peter Stilwell³, Jeanette Aston³, Robert D S Pitceathly⁴, Michael G Hanna⁴, Carl Fratter⁵, Rita Horvath¹, Mary Bythell³, Steven A Hardy³, Patrick F Chinnery^1,2

¹Department of Clinical Neurosciences, School of Clinical Medicine, University of Cambridge, Cambridge, UK; ²Medical Research Council Mitochondrial Biology Unit, University of Cambridge, Cambridge, UK; ³National Disease Registration Service, NHS Digital, Leeds, UK; ⁴Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology and The National Hospital for Neurology and Neurosurgery, London, UK; ⁵NHS Highly Specialised Services for Rare Mitochondrial Disorders – Oxford Centre, Oxford University Hospitals NHS Foundation Trust, Oxford, UK

Status epilepticus in POLG disease

Omar Hikmat^1,2, Karin Naess^3,4, Martin Engvall^3,5, Claus Klingenberg^6,7, Magnhild Rasmussen^8,9,10, Eylert Brodtkorb^11,12, Elsebet Ostergaard¹³, I.F.M de Coo¹⁴, Leticia Pias-Peleteiro¹⁵, Pirjo Isohanni^16,17, Johanna Uusimaa^18,19, Kari Majamaa^20,21, Mikko Kärppä^20,21, Juan Dario Ortigoza-Escobar^22,23, Trine Tangeraas^24,25, Siren Berland²⁶, Rita Horvath²⁷, Niklas Darin²⁸, Shamima Rahman^25,29,30, Laurence A. Bindoff^2,31

¹Department of Paediatrics and Adolescent Medicine, Haukeland University Hospital, Norway; ²Department of Clinical Medicine (K1), University of Bergen, Norway; ³Centre for Inherited Metabolic Diseases, Karolinska University Hospital, Stockholm, Sweden; ⁴Department of Neuropediatrics, Astrid Lindgren Childrens Hospital, Karolinska University Hospital, Stockholm, Sweden; ⁵Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden; ⁶Department of Paediatric and Adolescent Medicine, University Hospital of North Norway, Tromso, Norway; ⁷Paediatric Research Group, Department of Clinical Medicine, UiT- The Arctic University of Norway, Tromso, Norway; ⁸Women and Children's Division, Department of Clinical Neurosciences for Children, Oslo University Hospital, Oslo, Norway and Unit for Congenital and Hereditary Neuromuscular Disorders, Department of Neurology, Oslo University Hospital, Oslo, Norway; ⁹Department of Neurology, Oslo University Hospital, Oslo, Norway; ¹⁰Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway; ¹¹Department of Neuroscience and Movement Science, Norwegian University of Science and Technology, Trondheim, Norway; ¹²Department of Neurology and Clinical Neurophysiology, St. Olav's University Hospital, Trondheim, Norway; ¹³Department of Clinical Genetics, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark; ¹⁴Facultiy of Health, Medicine and Life Sciences, Department of Toxicology, , University of Maastricht, Maastricht, The Netherlands; ¹⁵Neurometabolic Disorders Unit, Department of Child Neurology/ Department of Genetics and Molecular Medicine, Sant Joan de Déu Children´s Hospital, Barcelona, Spain; ¹⁶Department of Pediatric Neurology, Children's Hospital and Pediatric Research Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland; ¹⁷Stem Cells and Metabolism Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland.; ¹⁸Research Unit of Clinical Medicine, University of Oulu, Oulu, Finland; ¹⁹Department of Pediatric Neurology, Clinic for Children and Adolescents and Medical Research Center, Oulu University Hospital, Oulu, Finland; ²⁰Research Unit of Clinical Medicine, Neurology, and Medical Research Center Oulu, Oulu University hospital and university of Oulu, Oulu Finland; ²¹Neurocenter , Oulu University Hospital ,Oulu Finland; ²²Movement Disorders Unit, Institut de Recerca Sant Joan de Déu, CIBERER-ISCIII, Barcelona, Spain; ²³European Reference Network for Rare Neurological Diseases (ERN-RND), Barcelona, Spain; ²⁴Norwegian national Unit for Newborn Screening, Division of Pediatric and adolescent Medicine, Oslo University Hospital, Oslo, Norway; ²⁵European Reference Network for Hereditary Metabolic Disorder; ²⁶Department of Medical Genetics, Haukeland University Hospital, Bergen, Norway; ²⁷Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK; ²⁸Department of Pediatrics, Institute of Clinical Sciences, University of Gothenburg, Queen Silvia Children's Hospital, Sahlgrenska University Hospital, Gothenburg, Sweden; ²⁹Mitochondrial Research Group, UCL Great Ormond Street Institute of Child Health, London, UK; ³⁰Metabolic Unit, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK; ³¹Department of Neurology, Haukeland University Hospital, 5021 Bergen, Norway

Challenging the norm – outcome measure selection for evaluating therapeutic response in patients with Primary Mitochondrial Myopathy after 12 weeks of treatment with REN001, a novel PPARδ agonist.

Lisa Alcock^1,2, Renae J. Stefanetti^2,3, Oliver Russell^2,3, Alisdair P. Blain^2,3, Jane Newman^2,3,4, Naomi J.P. Thomas^2,3,4, Charlotte Warren^2,3, Huizhong Su^2,3, Philip Brown⁵, David Houghton^2,3, Heather Hunter⁵, Helen Tuppen^2,3, Gavin Falkous⁴, Robert W. Taylor^2,3,4, Albert Z. Lim^2,3,4, Yi Shiau Ng^2,3,4, Catherine Feeney^2,3,4, Iwona Skorupinska⁶, Louise Germain⁷, Enrico Bugiardini⁶, Michael G. Hanna⁶, Robert McFarland^2,3,4, Robert D.S. Pitceathly^6,7, Lynn Rochester^1,2,5, Gráinne S. Gorman^2,3,4

¹Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, UK; ²National Institute for Health and Care Research (NIHR) Newcastle Biomedical Research Centre (BRC), Newcastle University and The Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK; ³Wellcome Centre for Mitochondrial Research, Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, UK; ⁴NHS Highly Specialised Service for Rare Mitochondrial Disorders, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK; ⁵The Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK; ⁶Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology and The National Hospital for Neurology and Neurosurgery, London, UK; ⁷NHS Highly Specialised Service for Rare Mitochondrial Disorders, Queen Square Centre for Neuromuscular Diseases, The National Hospital for Neurology and Neurosurgery, London, UK

Indirect comparison of lenadogene nolparvovec gene therapy versus natural history in m.11778G>A MT-ND4 Leber hereditary optic neuropathy patients

Nancy J. Newman¹, Mark L. Moster², Valerio Carelli³, Patrick Yu-Wai-Man⁴, Valerie Biousse¹, Prem S. Subramanian⁵, Catherine Vignal-Clermont⁶, An-Guor Wang⁷, Sean P. Donahue⁸, Bart P. Leroy⁹, Robert C. Sergott², Thomas Klopstock¹⁰, Alfredo A. Sadun¹¹, Gema Rebolleda Fernández¹², Bart K. Chwalisz¹³, Rudrani Banik¹⁴, Magali Taiel¹⁵, José-Alain Sahel¹⁶

¹Departments of Ophthalmology, Neurology and Neurological Surgery, Emory University School of Medicine, Atlanta, GA, USA; ²Departments of Neurology and Ophthalmology, Wills Eye Hospital and Thomas Jefferson University, Philadelphia, PA, USA; ³IRCCS Istituto delle Scienze Neurologiche di Bologna, Programma di Neurogenetica, Bologna, Italy; ⁴Cambridge Centre for Brain Repair and MRC Mitochondrial Biology Unit, Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK; ⁵Sue Anschutz-Rodgers University of Colorado Eye Center, University of Colorado School of Medicine, Aurora, CO, USA; ⁶Department of Neuro Ophthalmology and Emergencies, Rothschild Foundation Hospital, Paris, France; ⁷Department of Ophthalmology, Taipei Veterans General Hospital, National Yang Ming Chiao Tung University, Taipei, Taiwan; ⁸Department of Ophthalmology, Neurology, and Pediatrics, Vanderbilt University, and Vanderbilt Eye Institute, Vanderbilt University Medical Center, Nashville, TN, USA; ⁹Department of Ophthalmology and Center for Medical Genetics, Ghent University Hospital, and Department of Head & Skin, Ghent University, Ghent, Belgium; ¹⁰Department of Neurology, Friedrich-Baur-Institute, University Hospital, Ludwig-Maximilians-University Munich, Munich, Germany; ¹¹Doheny Eye Institute, UCLA School of Medicine, Los Angeles, CA, USA; ¹²Department of Ophthalmology, Alcala University, Madrid, Spain; ¹³Department of Ophthalmology, Massachusetts Eye & Ear, Harvard Medical School, Boston, MA, USA; ¹⁴Department of Ophthalmology, Icahn School of Medicine at Mount Sinai, New York, NY, USA; ¹⁵GenSight Biologics, Paris, France; ¹⁶Sorbonne Université, INSERM, CNRS, Institut de la Vision, Paris, France

The mitochondrial stress, brain imaging, and epigenetics study (MiSBIE)

Caroline Trumpff¹, Anna S Monzel¹, Catherine Kelly¹, Kris Engelstad¹, Shufang Li¹, Kalpita Karan¹, Gabriel Sturm¹, Jeremy Michelson¹, Mangesh Kurade¹, Vincenzo Lauriola¹, Sophia Tepler¹, Grace Liu¹, Peter Shapiro¹, Robert-Paul Juster², Stephanie Assuras¹, Richard Sloan¹, Michel Thiebaut de Schotten³, Tor Wager⁴, Michio Hirano¹, Martin Picard¹

¹Columbia University Irving Medical Center, United States of America; ²Université de Montréal, Canada; ³Université de Bordeaux, France; ⁴Dartmouth College, Uniter States of America

SARM1 deletion delays cerebellar but not spinal cord degeneration in an enhanced mouse model of SPG7 deficiency

Carolina Montoro^1,2, Hendrik Nolte³, Thibaut Molinie^1,2, Giovanna Evangelista^1,2, Simon Tröder², Esther Barth^1,2, Branko Zeivnik², Thomas Langer^2,3, Elena Rugarli^1,2,4

¹Institute for Genetics, University of Cologne, Cologne 50931, Germany; ²Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), Cologne 50931, Germany; ³Max Planck Institute for Biology of Ageing, Cologne 50931, Germany; ⁴Center for Molecular Medicine (CMMC), University of Cologne, Cologne 50931, Germany

Pathobiology of cerebellar degeneration in the Harlequin mouse, a proteomic and system biology approach

Miguel Fernández de la Torre¹, Carmen Fiuza-Luces¹, Sara Laine-Menéndez¹, Aitor Delmiro^1,2,3, Joaquín Arenas^1,2, Miguel A Martín^1,2,4, Alejandro Lucía^5,6, María Morán^1,2

¹Mitochondrial and Neuromuscular Diseases Laboratory, Instituto de Investigación Sanitaria Hospital ‘12 de Octubre’ (‘imas12’), Madrid, Spain; ²Spanish Network for Biomedical Research in Rare Diseases (CIBERER), U723, Spain.; ³Servicio de Bioquímica Clínica. Hospital Universitario ‘12 de Octubre’. Madrid, Spain; ⁴Servicio de Genética. Hospital Universitario ‘12 de Octubre’. Madrid, Spain; ⁵Faculty of Sports Sciences, European University of Madrid, Madrid, Spain; ⁶Spanish Network for Biomedical Research in Fragility and Healthy Aging (CIBERFES), Madrid, Spain

The role of mitochondrial transcriptional processes in the aetiology of Parkinson’s disease

Aine Fairbrother-Browne^1,2,3, Ana Luisa Gil-Martínez^3,5, Mina Ryten^2,3,4, Alan Hodgkinson¹

¹Department of Medical and Molecular Genetics, School of Basic and Medical Biosciences, King’s College London, London, United Kingdom; ²Department of Genetics and Genomic Medicine Research & Teaching, UCL GOS Institute of Child Health, London, WC1N 1EH, UK; ³Department of Neurodegenerative Disease, Queen Square Institute of Neurology, UCL, London WC1N 3BG, UK; ⁴NIHR Great Ormond Street Hospital Biomedical Research Centre, University College London, London, WC1N 1EH, UK; ⁵Department of Information and Communications Engineering Faculty of Informatics, Espinardo Campus, University of Murcia, Murcia, 30100, Spain

Towards a unitary hypothesis of Alzheimer disease pathogenesis

Eric A. Schon¹, Delfina Larrea¹, Jorge Montesinos^1,2, Marta Pera¹, Mark Tambini¹, Estela Area-Gomez^1,2

¹Columbia University, USA; ²Centro de Investigaciones Biológicas “Margarita Salas”, Madrid, Spain

An experimental protocol for in vivo imaging of brain mitochondrial properties with multiphoton microscopy

Renata Couto, Miguel Remondes, Vanessa A. Morais

Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal

Exploiting hiPSCs-derived astrocytes from CoPAN patients as cell model to study iron accumulation.

Anna Cozzi¹, Paolo Santambrogio¹, Maddalena Ripamonti^1,2, Chiara Cavestro³, Alicia Rubbio⁴, Ivano Di Meo³, Valeria Tiranti³, Sonia Levi^1,2

¹San Raffaele Scientific Institute; ²Vita-Salute San Raffaele, Italy; ³Fondazione IRCCS Istituto Neurologico Carlo Besta; ⁴Institute of Neuroscience National Research Council

Secondary mitochondrial impairment in muscle of pediatric patients unrelated to the genes diagnosed by WES: are these mitochondrial diseases?

Flavia Palombo¹, Mariantonietta Capristo¹, Claudio Fiorini¹, Concetta Valentina Tropeano¹, Valentina Del Dotto^1,2, Leonardo Caporali¹, Maria Lucia Valentino^1,2, Veronica Di Pisa³, Gaetano Cantalupo⁴, Marco Seri^5,6, Duccio Maria Cordelli^3,5, Caterina Garone^3,5, Valerio Carelli^1,2

¹IRCCS Istituto delle Scienze Neurologiche di Bologna, Programma di Neurogenetica, Bologna, Italy; ²Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy; ³IRCCS Istituto delle Scienze Neurologiche di Bologna, UOC di Neuropsichiatria dell'Età Pediatrica, Bologna, Italy; ⁴Child Neuropsychiatry Unit, Department of Surgical Sciences, Dentistry, Gynecology and Pediatrics, University of Verona, Verona, Italy; ⁵Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy; ⁶Medical Genetics Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy

In vitro 2D and 3D neuronal model generation of MERRF disease to test therapeutic strategies

Giada Capirossi^1,2, Valentina Del Dotto², Mariantonietta Capristo¹, Giulia Sacchetti¹, Claudio Fiorini¹, Leonardo Caporali², Chiara La Morgia^1,2, Annalinda Pisano³, Carla Giordano³, Giulia D'Amati³, Alessandro Prigione⁴, Alessandra Maresca¹, Valerio Carelli^1,2

¹IRCCS Istituto delle Scienze Neurologiche di Bologna, Programma di Neurogenetica, Bologna, Italy; ²Department of Biomedical and Neuromotor Sciences (DIBINEM), University of Bologna, Bologna, Italy; ³Department of Radiological, Oncological and Pathological Sciences, Sapienza, University of Rome, Rome, Italy; ⁴Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, Heinrich Heine University, Düsseldorf, Germany

Molecular mechanism of human mitochondrial chaperonin and its mutation in neurodegenerative disease

Lingling Chen

Indiana University, United States of America

Nucleus-associated mitochondria (NAM) control neuronal Ca2+ signalling and gene expression

Danilo Faccenda^1,3, Radha Desai², Eva Sidlauskaite³, Steven Lynham⁴, Jill Richardson², Michelangelo Campanella^3,5

¹University of Hertfordshire, Department of Clinical, Pharmaceutical and Biological Science, Hatfield, United Kingdom; ²Discovery Research MRL UK, MSD, LBIC, London, United Kingdom; ³William Harvey Research Institute, Queen Mary University of London, London, United Kingdom; ⁴Proteomics Facility, Centre of Excellence for Mass Spectrometry, King’s College London, London, United Kingdom; ⁵University of Padua, Department of Biomedical Sciences, Padua, Italy

Autophagy controls the pathogenicity of OPA1 mutations in ADOA plus

Paola Zanfardino¹, Alessandro Amati¹, Easter Petracca¹, Filippo M. Santorelli², Vittoria Petruzzella¹

¹Department of Translational Biomedicine and Neuroscience (DiBraiN), University of Bari Aldo Moro, Bari, Italy; ²Molecular Medicine for Neurodegenerative and Neuromuscular Diseases Unit, IRCCS Fondazione Stella Maris, Pisa, Italy

Investigating the function of CHCHD2-CHCHD10 complexes in mitochondria

Kevin McAvoy¹, Nicole Sayles¹, Nneka Southwell¹, Anna Stepanova¹, Alba Pessini², Catarina Quinzii², Giovanni Manfredi¹

¹Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA; ²Department of Neurology, Columbia University Medical Center, New York, NY, USA