Generation of CD105+ cells from ABB-treated hESCs. (A) The proportion of CD105+ and CD73+ cells before sorting (left) and after sorting (right) by magnetic-activated cell sorting (MACS). (B) Surface-antigen profiles of sorted cells were characterized by fluorescence-activated cell sorting (FACS) using the following antibodies: PE-CD29, PE-CD44, APC-CD90, PE-CD73, PE-HLA-ABC, PE-CD31, FITC-CD45, APC-HLA-DR, and APC-CD34.