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Cell surface expression of four mesenchymal surface markers (CD44, CD73, CD90, and CD105), two mesenchymal negative markers (CD11b, CD271), and one chondrocyte surface marker (CD151). SMSCs were isolated from patient #5. The results of the FACS analysis of synovial SMSCs are shown. The red line indicates the binding of the specific antibody. The black line indicates the isotypic control. SMSCs, synovial mesenchymal stem cells; FACS, fluorescence-activated cell sorting.
