Comparison of adipogenic and calcification potential of synovial MSCs pretreated with or without TNFα.

<p>(A) Experimental design. Synovial MSCs were pretreated with 25 ng/ml TNFα or without TNFα (Control) for 14 days, then the medium was changed and the cells were cultured in adipogenic medium or calcification medium for further 21 days. (B) Representative cells stained with oil red-o for adipogenesis. (C) Representative cells stained with alizarin red for calcification.