Surface markers of FACs from human AGM and YS. Flow cytometric analysis shows that the immunophenotypes of FACs from AGM (B) and YS (C) are uniform and identical to those of BM-derived MSCs (A). They are positive for CD105 (SH2), CD73 (SH3), CD29, CD44, CD166, and HLA-ABC, and negative for CD45, CD14, CD34, CD31, CD19, and HLA-DR.