Fig. 5
From: Embryonic stem cell-derived extracellular vesicles promote the recovery of kidney injury
ESC-EVs also promote angiogenesis in vitro. a Scratch assay of HUVECs treated with EVs. Scale bar represents 100 μm. b Quantification of the migration ratio of HUVECs in each group. c Immunostaining analysis for Ki67 in HUVECs treated with EVs for 24 h. Scale bar represents 100 μm. d Quantification of Ki67-positive HUVECs in each group. e Real-time qPCR analysis of angiogenic factor-related genes in HUVECs treated with EVs for 24 h. f Optical images of tube formation of HUVECs in each group. Scale bar represents 100 μm. g Quantitative evaluation of the tube length in each group. The data are presented as mean ± SEM. (n = 3; *P < 0.05 versus PBS, **P < 0.01 versus PBS)