Fig. 2.

RvD1 have no effect on normal FLSs. A Normal FLSs were incubated with RvD1 (0, 20, 50, 100 or 200 nM), and cell viability was detected by MTT assay. B Normal FLSs were incubated with RvD1 (0, 20 or 200 nM), and cell proliferation was detected by EdU assay (100 × magnification). *P < 0.05 as comparison with OA-FLS group. All experiments were repeated three times independently