BECN1 and myocardial infarction: To explore any possible mechanisms of action behind Beclin1 haploinsufficiency-induced effect against MSCs-induced myocardial and cardiomyocyte mechanical responses, intracellular Ca2+ handling was monitored in cardiomyocytes from the area-at-risk in MI-challenged and MSC-delivered WT and BECN+/− mice.