IGF1 and myocardial infarction: Another study focusing on myocardial infarction (MI) designed a synthetic cell‐mimicking microparticle (CMMP) recapitulating cardiac stem cell (CSC) functions in tissue repair (Figure 9C,D).110 Here, they loaded the CSC secretome (mainly VEGF, IGF‐1, and HGF) inside the PLGA core and cloaked CSC membrane fragments on the surface.