Fig. 1

Characterization of BM-MSC-EXOs and iPSC-MSC-EXOs. A Representative TEM images showing cup-shaped morphology of BM-MSC-EXOs and iPSC-MSC-EXOs. B The particle concentration and size distribution of BM-MSC-EXOs and iPSC-MSC-EXOs were analyzed by NTA. C Representative images of Western blotting showing the exosomal protein markers including CD9, CD63, TSG101 and HSP70 in BM-MSC-EXOs and iPSC-MSC-EXOs. D Representative immunofluorescence images demonstrating the internalization of DiI-labeled BM-MSC-EXOs or iPSC-MSC-EXOs in NMCMs. n = 3. Data are expressed as mean ± SD. *p < 0.05. ns = not significant