An urgent need in cardiovascular medicine is to develop novel therapeutic tools and approaches to restore proper function of diseased hearts and to regenerate cardiac muscle after injury. Regenerative therapies, either by transplantation of stem cells or stem cell-derived differentiated cells into the defective organ or by promoting endogenous regenerative processes, are an important goal of cardiovascular research. In order to translate successfully these concepts into patient care, several fundamental research questions have to be answered. One core activity of this group is to address such questions with state-of-the-art methods. Among others, these techniuqes are applicated: generation, culture and differentiation of human pluripotent stem cells; genetic modification (CRISPR/Cas System); optical physiological characterization of cardiomyocytes (Calcium imaging, membrane potential imaging, second messenger imaging); 3D culture of iPS-derived cardiomyocytes; gene expression analysis (RNAseq, single-cell RNAseq); molecular cloning and cell injection into murine embryos.