Figure 1: The picture and surface markers of human umbilical mesenchymal stem cells (hUC-MSCs). (A) In vitro, hUC-MSCs were fibroblast-like, and the viability was 92%. (B) The hUC-MSCs were positive for CD105, CD73, CD90 and negative for CD34, CD45, CD14, CD79, HLA-DR according to flow cytometric analysis.