Figure 2. The impact of Phoenixin-20 on the cell viability of RA-FLSs. The cell viability of RA-FLSs was measured with CCK-8 following treatment with 0, 1, 2, 10, 20, 100, and 200 nM Phoenixin-20 (※P < 0.01 vs. vehicle group; #, ##, P < 0.05, 0.01 vs. TNF-α group, N = 6).