Fig. 2.

EVs isolated from MSCs could be absorbed by cardiomyocytes and endothelial cells in vitro. (A and B) DiR-labeled EVs with various concentrations was co-cultured with cardiomyocytes and internalization of EVs was detected. (C) Confocal images showed that red fluorescence of dye Dil labeled EVs were endocytosed by HUVECs and cardiomyocytes 6 ​h and 24 ​h after incubation. Scale bar ​= ​50 ​μm. (For interpretation of the references to colour in this figure legend, the reader is referred to the Web version of this article.)