Lowly expressed LncRNA DANCR ameliorates the immune inflammatory response in rheumatoid arthritis (RA) by sponging miR‐134‐5p to activate its mediated Keap1‐Nrf2/ARE signaling pathway, inhibiting the release of inflammatory factors from RA‐fibroblast‐like synoviocytes and stimulating antioxidant capacity. The gene discussed is KEAP1; the disease is rheumatoid arthritis.