Figure 4. IL21 promotes chondrocyte apoptosis by regulating the expression of miR-361-5p. (A) Plots of apoptosis results of HC-1 cells after co-treatment with IL21 or IL21 and miR-361-5p. (B) The apoptosis rate of HC-1 cells after co-treatment with IL21 or IL21 and miR-361-5p. N = 8; **P < 0.01, NC vs. IL21, IL21+miR-NC vs. IL21+miR-361-5p.