Fig. 4.
The effects of TNF-α and MTX on OA FLS and RA FLS. a-b The effects of TNF-α and MTX on the proliferation of OA FLS and RA FLS. c The effects of TNF-α and MTX on the migration of OA FLS and RA FLS. d The effects of MTX on apoptosis of OA FLS and RA FLS. e-f The effects of TNF-α and MTX on the mRNA expression of pro-inflammatory genes in OA FLS and RA FLS. e-f The effects of TNF-α and MTX on the protein expression of IL-1 and IL-6 in OA FLS and RA FLS. i The effects of TNF-α and MTX on IL-6 production from OA FLS and RA FLS. Each bar in the figure represents the mean ± SEM of triplicates. Scale bar=500 μm. *P < 0.05 and ** P < 0.01