Objective The Constitutive morphogenetic protein 1 (Cop1) is an E3-ubiquitin ligase regulating stability of a broad group of targets with pleiotropic functions. Cop1 emerged as a tumour suppressor in T-cell lymphomas and in prostate cancer. During tumour formation, mitochondria are key organelles regulating cell death and proliferation. This multiplicity of functions is mirrored by the complex morphology of the organelle, resulting from the equilibrium between fusion and fission, events controlled by a set of mitochondria-shaping proteins. Fission depends on the large GTPase dynamin-related protein 1 (DRP1), essential for embryonic development and involved in the control of apoptosis and cell cycle.We found that loss of Cop1 results in increased cell death, DNA damage, mitochondrial fragmentation, and accumulation of D1, highlighting a potential connection between a tumour suppressor and mitochondrial morphology. We therefore hypothesize that Drp1-mediated regulation of mitochondrial morphology participates in tumour suppression by Cop1. To address this hypothesis, we will verify if (i) Drp1 is epistatic to Cop1 in accumulation of DNA damage and sensitivity to cell death; (ii) Drp1 is required for lymphomagenesis in Cop1h/h mice . Our project is expected to establish the role of mitochondrial morphology in Cop1 regulated tumour development. Fields of science medical and health sciencesclinical medicineoncologyprostate cancernatural sciencesbiological sciencesgeneticsDNAnatural sciencesbiological sciencesbiochemistrybiomoleculesproteinsnatural sciencesbiological sciencesdevelopmental biology Programme(s) FP7-PEOPLE - Specific programme "People" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013) Topic(s) FP7-PEOPLE-2011-IEF - Marie-Curie Action: "Intra-European fellowships for career development" Call for proposal FP7-PEOPLE-2011-IEF See other projects for this call Funding Scheme MC-IEF - Intra-European Fellowships (IEF) Coordinator UNIVERSITE DE GENEVE EU contribution € 256 364,20 Address RUE DU GENERAL DUFOUR 24 1211 Geneve Switzerland See on map Region Schweiz/Suisse/Svizzera Région lémanique Genève Activity type Higher or Secondary Education Establishments Administrative Contact Luca Scorrano (Prof.) Links Contact the organisation Opens in new window Website Opens in new window Total cost No data