FIG. 3.
The colonies and morphology of human UCB EPCs. (A) Colony numbers. The colony number per 10 mL human UCB on the fifth day was 20±2 and increased to 64±5 on eighth day. (B) Colony size. The colony diameter on the fifth day was 0.90±0.74 mm and increased to 1.56±1.47 mm on the eighth day. (C) Colony of 5 days of culture with small diameter. (D) The same colony after 8 days of culture (scale bar=500 μm). (E) First passage of the UCB EPCs showed short spindle shape. (F) Second passage of the UCB EPCs (scale bar=100 μm).