Specific markers of the AMSCs. Specific markers of the AMSCs are similar with BMSCs. Several surface markers of AMSCs were detected by RT-PCR and immunofluorescence. A, RT-PCR analysis exhibited that the AMSCs expressed CD29, CD44, Oct-4, CD71, Rex-1, CD90, and CD73. and GAPDH was used as an internal control; B, Immunofluorescence exhibited that the expression of CD44, CD29, CD71, Oct-4, CD73 and CD90 were positive. Scale bar, 50μm.