Figure 3. Phoenixin-20 repressed the inflammation in TNF-α-treated RA-FLSs. RA-FLSs were stimulated with TNF-α (10 ng/mL) with or without Phoenixin-20 (10, 20 nM) for 24 h. (A) mRNA level of IL-1β, IL-6, and IL-8. (B) Protein level of IL-1β, IL-6, and IL-8 (※P < 0.01 vs. vehicle group; #, ##, P < 0.05, 0.01 vs. TNF-α group, N = 6).