Figure 1From: Sertoli cell-mediated differentiation of male germ cell-like cells from human umbilical cord Wharton’s jelly-derived mesenchymal stem cells in an in vitro co-culture system Morphology of cultured human umbilical cord mesenchymal stem cells (HUMSCs). (A) Primary HUMSCs on day 7 after culture. HUMSCs (black arrow) migrated out from Wharton’s jelly fragments (white arrow). (B) Fibroblast-like HUMSCs at passage 3. (Magnification 100×).Back to article page