miR-590-3p Overexpression Improves the Efficacy of hiPSC-CMs for Myocardial Repair

JACC Basic Transl Sci. 2024 Feb 7;9(5):557-573. doi: 10.1016/j.jacbts.2023.11.005. eCollection 2024 May.

Abstract

Recent evidence demonstrates that low engraftment rates limit the efficacy of human induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs) for cardiac repair after myocardial infarction. In this study, we attempted to overcome this limitation by enhancing the proliferative capacity of transplanted hiPSC-CMs. We found that miR-590-3p overexpression increased the proliferative capacity of hiPSC-CMs. miR-590-3p overexpression increased the number of engrafted cells and had a higher efficacy for myocardial repair than control cells. Moreover, we confirmed the safety of using miR-590-3p-overexpressing hiPSC-CMs in pig hearts. These results indicated that miR-590-3p overexpression stimulated hiPSC-CM cell cycle re-entry to induce cell proliferation and increased the therapeutic efficacy in MI.

Keywords: cell cycle; human induced pluripotent stem cells; miR-590-3p; myocardial infarction.