Fig. 1. COMP-Ang1 enhances tube formation and migration of hCB-EPCs. (A, C) COMP-Ang1 promoted tube formation, more in EPCs than in HUVECs. COMP-Ang1 (C.A1, 200 ng/mL) was incubated for 24 h (A) followed by densitometric analyses (C). Scale bar, 100 µm. All values are the means±SEM. ****p <0.0001, **p <0.01. (B) COMP-Ang1 promoted the number of EPC incorporated HUVECs. CFSE-labeled EPCs were incorporated on DiI-labeled HUVECs. COMP-Ang1 (200 ng/mL) was incubated for 24 h. Scale bar, 100 µm. (D, E) COMP-Ang1 promoted cell migration in EPCs better than that in HUVECs. COMP-Ang1 (200 ng/mL) was incubated for 24 h. Scale bar, 50 µm.
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