“…Although iPSC technology is currently unable to regenerate all cell types for specific customized cell therapies, it has indeed paved the path for providing tailored cells for disease modelling and drug screening [ 10 ]. In cardiovascular regenerative medicine, iPSC technology has enabled to provide CMs [ 11 , 12 ], but with the current differentiation methods they are mostly immature and heterogenous, creating related problems such as arrhythmogenicity, immunogenicity, and poor engraftment. Direct transplant of pluripotent stem cell (PSC)-derived CMs into the infarcted myocardium has shown limited therapeutic benefit in large animal models, mainly due to insufficient retention potential of transplanted cells for the long term, low engraftment rate, potential immunological reactions, risk of tumour induction, and inadequate electrical and mechanical coupling [ 13 , 14 ].…”