MYC expression and FACS analysis of hUCB-MSCs. (A) Immunostaining of c-MYC in p5 hUCB-MSCs. Nuclear localization of c-MYC is prominent. (B) MYC expression in hUCB-MSCs from p3 to p9. The expression of c-MYC is constant in hUCB-MSCs from p3 to p9. (C) FACS analysis of hUCB-MSCs. EC/EPC marker: CD31; MSC+ marker: CD29, CD44, CD73, CD90, CD105; MSC– marker: CD34, CD45; hematopoietic stem cell marker: CD31, CD34, CD133; MHC class II, leucocyte marker: HLA-DR. Scale bar represents 50 μm.