Fig. 1: Isolation and identification of MSC-Exos.

A The morphology of MSC-Exos was observed by TEM (scale bar=100 nm). Representative images from one experiment out of three are shown. B Representative results of NTA of MSC-Exos from three independent experiments. C Western blot analysis of exosomal protein markers (CD9, CD63 and TSG101) and an endoplasmic reticulum marker (calnexin) in MSC-Exos.