Fig. 7

Gene expression of MSCs, PDGF-MSCs, and HO-1-MSCs after co-culture for 24 and 72 h. a, b Expression of anti-fibrotic marker HGF when co-cultured with chondrocytes and synovial cells. c, d Expression of anti-inflammatory marker TSG-6. e–h Expression of pro-chondrogenic markers FGF-2 and SOX-9. *P < 0.05 and **P < 0.01 compared to the control within the groups. ^#P < 0.05 and ^##P < 0.01 compared to the 24 h incubation within groups