Objetivo Myocardial infarction (MI) leading to ischemic heart disease is the most common cause of death worldwide. In mammals, MI results in the in the replacement of the damaged myocardium with a scar. However, other animals, such as teleost fish have a remarkable capacity to regenerate damaged tissue replacing it with newly formed tissue. Recently, a zebrafish model of MI has been established. Cryoinjury (CI) of 25% of the ventricle leads to massive cell death and the deposition of fibrotic tissue. While in mammals cardiac fibrosis is irreversible, in the zebrafish the scar regresses and the injured area is replaced by new cardiomyocytes. Although the regenerative capacity of the zebrafish heart was described a decade ago, little is known about its molecular mechanisms.The aim of this project is to analyse the fate of myofibroblast during cardiac regeneration in the zebrafish. Only few apoptotic myofibroblasts are detected after CI leaving several questions unanswered as to what happens to these cells.Another important aspect is to understand the molecular mechanisms behind cardiac regeneration in a MI-model in zebrafish. We will test if cardiac regeneration is accomplished by the re-expression of developmentally active genes. We will study the role of the transcription factor tbx1 (involved in cardiac development in zebrafish as well as in humans), which has been identified in a recent screen performed in the host group. We will also analyse the function of molecules secreted from the epicardium. This mesothelial layer has been recently shown to play a pivotal role during cardiac repair and, given its accessibility, poses an attractive target for therapeutic intervention.In sum, this project will characterize how in zebrafish mechanisms driving cardiomyocyte proliferation and scar formation are outbalanced to allow cardiac regeneration and propose that the findings may ultimately contribute to future therapies for the improvement of human cardiovascular health. Ámbito científico natural sciencesbiological scienceszoologymammalogy Programa(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) Tema(s) FP7-PEOPLE-2012-IEF - Marie-Curie Action: "Intra-European fellowships for career development" Convocatoria de propuestas FP7-PEOPLE-2012-IEF Consulte otros proyectos de esta convocatoria Régimen de financiación MC-IEF - Intra-European Fellowships (IEF) Coordinador CENTRO NACIONAL DE INVESTIGACIONES CARDIOVASCULARES CARLOS III (F.S.P.) Aportación de la UE € 173 370,60 Dirección CALLE MELCHOR FERNANDEZ ALMAGRO 3 28029 Madrid España Ver en el mapa Región Comunidad de Madrid Comunidad de Madrid Madrid Tipo de actividad Research Organisations Contacto administrativo Oficina De Proyectos Enlaces Contactar con la organización Opens in new window Sitio web Opens in new window Coste total Sin datos
