Immunophenotypic profile of mMSCs and GFPTgMSCs. A. Stem cells (P10 or lower) were incubated with antibodies for CD106, Sca-1, CD34, CD11b, or CD45 and assayed by FACS. Each antibody was tested individually and with isotype controls. B. Representative plots are shown with percentages corresponding to the average profile of all cell types. Red plot lines: isotype control; green plot: stem cells.