TNF and rheumatoid arthritis: As exhibited in Figure 8C, no significant difference was observed in WTAP expression between the WT and MUT groups, and WTAP expression was substantially higher in RA-FLS + TNF-α + M0 + pcDNA3.1-WTAP + WT-circ-CBLB (the pcDNA3.1-WTAP + WT group) and RA-FLS + TNF-α + M0 + pcDNA3.1-WTAP + MUT-circ-CBLB groups (the pcDNA3.1-WTAP + MUT group) than in the WT and MUT groups, respectively.