YTHDF2 and rheumatoid arthritis: Yao et al. assessed the mRNA expression of YTHDF2 in PBMC from both RA patients and the control group, the association between the mRNA expression of YTHDF2 and the host inflammatory levels, and the correlation between YTHDF2 mRNA expression in PBMC and the mRNA of the pro-inflammatory cytokines in these cells [122].