“…Rheumatoid arthritis (RA), a chronic systemic autoimmune inflammatory disease, has a high global prevalence of 0.5–1.0%. , Existing systematic medication has been subjected to low distribution in the inflamed joint area, poor bioavailability, and severe side effects. , Though several biologics, such as tumor necrosis factor-α (TNF-α) inhibitors, have certain curative effects, 30–50% of patients still suffer poor efficacy or do not respond to the treatment. , Thus, it is essential to explore new therapeutic agents and strategies. , Inflammation-associated macrophages, including the proinflammatory M1 phenotype and the anti-inflammatory M2 phenotype, are closely associated with early inflammation and correlated with the severity of RA. − M1 macrophages in inflamed synovial tissue can promote the expression of various proinflammatory factors, such as interleukin-1 (IL-1), TNF-α, IL-6, IL-18, and hypoxia inducible factor-1α (HIF-1α), which is also positively correlated with the generation of reactive oxygen species (ROS). − Thus, scavenging ROS, alleviating hypoxia, reducing neovascularization, and reprogramming macrophages can be an effective strategy for RA treatment. − …”