↑ miR-24, miR-26a, and miR-125a-5p in plasma (Murata et al., 2013).↑ miRNA-146a and ↓ miR-363 and miR-498 in CD4+ T cells (Li et al., 2010).↑ miR-146a in PBMCs and synovium (Niimoto et al., 2010).↑ miR-155 in PBMCs (Li et al., 2013).↓ miR-146a and miR-155 in Treg cells (Zhou et al., 2015).↑ miR-346 in RASFs (Semaan et al., 2011).↑ miR-18a in RASFs (Trenkmann et al., 2013).↓ miR-21-5p in Treg cells of RA (Dong et al., 2014).↓ miR-23b in RASFs (Zhu et al., 2012).↑ miR-126a in CD4+ T cells (Yang et al., 2015). The gene discussed is CD4; the disease is rheumatoid arthritis.