To clarify whether miR-26a-5p promoted the activation of PI3K-AKT pathway in RA-FLS, protein expression of AKT and p-AKT levels were analyzed in cell lysates by western blotting at 48 h after transfection with miR-26a-5p mimic, mimic NC, miR-26a-5p inhibitor, and inhibitor NC. Here, AKT1 is linked to rheumatoid arthritis.