AIM:To investigate the changes of expressions and the location of P65 and P50 in rheumatoid arthritis fibroblast-like synoviocytes(FLSs) by Danshen injection.METHODS: Fibroblast-like synovial cells obtained from synovial fluid by primary culture,and then treated with final concentrations of 0,0.2 and 0.4 mg/mL of Danshen injection for 24 h.The expressions and location of P65 and P50 were detected with immunocytochemistry and Western blot.RESULTS:Immunocytochemistry showed that in the absence of drugs under ...