Fig. 2From: Interleukin (IL)-25 suppresses IL-22-induced osteoclastogenesis in rheumatoid arthritis via STAT3 and p38 MAPK/IκBα pathwayThe suppressive effect of IL-25 on RANKL expression in RA synovial fibroblasts. RA synovial fibroblasts were pre-treated with IL-25 and then cultured with 10 ng/ml IL-22 for 72 h. a RANKL mRNA level was quantified by real-time PCR. b RANKL protein levels were determined by ELISA. **P < 0.01 and ***P < 0.001Back to article page