Knockdown of deleterious miRNA in progenitor cell–derived small extracellular vesicles enhances tissue repair in myocardial infarction

Authors: Hyun-Ji Park, Jessica R. Hoffman, Milton E. Brown, Sruti Bheri, Olga Brazhkina, Young Hoon Son, Michael E. Davis

Published: 2023-03-03

DOI: 10.1126/sciadv.abo4616

Source: Full article


Abstract

Small extracellular vesicles (sEVs) play a critical role in cardiac cell therapy by delivering molecular cargo and mediating cellular signaling. Among sEV cargo molecule types, microRNA (miRNA) is particularly potent and highly heterogeneous. However, not all miRNAs in sEV are beneficial. Two previous studies using computational modeling identified miR-192-5p and miR-432-5p as potentially deleterious in cardiac function and repair. Here, we show that knocking down miR-192-5p and miR-432-5p in cardiac c-kit