Objectif Mitochondria and mitochondrial function have gained increased attention within a wide range of clinical and scientific specialities, but exactly how mitochondria impact the rest of the cell is less well understood. Not only are mitochondria implicated in a range of rare genetic disorders, but dysfunction of mitochondria or reduced bioenergetic capacity has been associated with common diseases including cancer, heart failure, neurodegeneration and diabetes mellitus, as well as natural ageing. It is becoming increasingly clear that mitochondrial dysfunction is not only a downstream event in these conditions, but plays an important role in disease progression and pathology.S-adenosylmethionine (SAM) is the dominant methyl group donor within our cells, required for a diverse set of post-translational modifications, nucleotide methylations or the synthesis of co-factors and metabolites. Mitochondria play an important part in SAM synthesis, and mitochondrial function has recently been shown to influence cellular methylation. Approximately 30% of the cellular SAM pool is located within mitochondria, advocating a central role for mitochondria in cellular methylation. The advancements in genome sequencing techniques, unprecedented depth of modern mass spectrometry analyses and our possibility to efficiently generate model systems, provides a rare opportunity to comprehensively study the role of both SAM and mitochondria in health and disease.This project plan describes the genetic, molecular, metabolic and proteomic analysis of fruit fly and mouse models with mitochondrial dysfunction and disrupted intra-mitochondrial SAM levels to identify the mitochondrial methylome, its relevance towards other cellular functions and its impact on the epigenetic control of gene regulation. My extensive research on mitochondrial function, as well as working as a physician with patients suffering from inborn errors of metabolism gives me a unique perspective in this project. Champ scientifique medical and health sciencesclinical medicineendocrinologydiabetesmedical and health sciencesclinical medicineoncologymedical and health sciencesbasic medicinepathologymedical and health sciencesclinical medicinecardiologynatural scienceschemical sciencesanalytical chemistrymass spectrometry Mots‑clés inborn errors of metabolism mitochondria methylation S-adenosylmethionine Drosophila melanogaster mouse molecular biology proteomics mitochondrial disease metabolism bioenergetics Programme(s) H2020-EU.1.1. - EXCELLENT SCIENCE - European Research Council (ERC) Main Programme Thème(s) ERC-2016-STG - ERC Starting Grant Appel à propositions ERC-2016-STG Voir d’autres projets de cet appel Régime de financement ERC-STG - Starting Grant Institution d’accueil KAROLINSKA INSTITUTET Contribution nette de l'UE € 1 499 999,25 Adresse Nobels Vag 5 17177 Stockholm Suède Voir sur la carte Région Östra Sverige Stockholm Stockholms län Type d’activité Higher or Secondary Education Establishments Liens Contacter l’organisation Opens in new window Site web Opens in new window Participation aux programmes de R&I de l'UE Opens in new window Réseau de collaboration HORIZON Opens in new window Coût total € 1 499 999,25 Bénéficiaires (1) Trier par ordre alphabétique Trier par contribution nette de l'UE Tout développer Tout réduire KAROLINSKA INSTITUTET Suède Contribution nette de l'UE € 1 499 999,25 Adresse Nobels Vag 5 17177 Stockholm Voir sur la carte Région Östra Sverige Stockholm Stockholms län Type d’activité Higher or Secondary Education Establishments Liens Contacter l’organisation Opens in new window Site web Opens in new window Participation aux programmes de R&I de l'UE Opens in new window Réseau de collaboration HORIZON Opens in new window Coût total € 1 499 999,25