FGL1 and rheumatoid arthritis: In addition, miR-150-5p (Chen et al., 2018), circFBXW7 (Chang and Kan, 2021), fibrinogen-like protein 1 (FGL1) (Xu et al., 2022), miR-146a, and miR-155 (Tavasolian et al., 2020) modulate the therapeutic effect of MSC-exosomes in RA.