Figure 1. hUC-MSCs isolated from Wharton's Jelly tissue. (A) Wharton's Jelly tissue. (B) A small number of cells crawled out of the tissue block on the 5th day, varying in morphology. Scale bar=200 μm. (C) P5 cells in the shape of vortex or shoal. Scale bar=200 μm. (D) P6 cells after cryopreservation and resuscitation. Scale bar=200 μm.