Figure 2. VEGF transfection to ADSCs delivered by lentivirus-VEGF.

(A) Approximately 95% ADSCs expressed VEGF according to the immunofluorescent observation. Scale bar = 200 µm. (B) Western-Blot analyses further demonstrated the VEGF expression in ADSCs. (C) ELISA measurement showed VEGF protein levels in the culture medium of ADSCs reached peak at 12 days and kept stable level more than 30 days.