Figure 1. Identification of hUC-MSCs. (A) The morphologies of hUC-MSCs were observed under a light microscope. (B) Flow analysis revealed MSC specific surface markers, CD73, CD90, and CD14. (C–E) Osteogenesis (C), adipogenesis (D), and chondrogenesis (E) were confirmed by Alizarin Red, Oil Red, and Alcian Blue staining.