摘要
Extracellular vesicles(EVs)generated from mesenchymal stem cells(MSCs)play an essential role in modulating cell–cell communication and tissue regeneration.The clinical translation of EVs is constrained by the poor yield of EVs.Extrusion has recently become an effective technique for producing a large scale of nanovesicles(NVs).In this study,we systematically compared MSC NVs(from extrusion)and EVs(from natural secretion).Proteomics and RNA sequencing data revealed that NVs resemble MSCs more closely than EVs.Additionally,microRNAs in NVs are related to cardiac repair,fibrosis repression,angiogenesis.Lastly,intravenous delivery of MSC NVs improved heart repair and cardiac function in a mouse model of myocardial infarction.
基金
NC State University,the National Natural Science Foundation of China(No.82200276)
the Grant of Key Research and Development Program of Hebei Province(No.203777117D)
the Key Project of Hebei Provincial Health Commission(Nos.20201159 and 20180224)
the Natural Science Foundation of Hebei Province(Nos.H2021206399 and H2022206295)。
