VIM and rheumatoid arthritis: By Western Blot, HFLS-RA cells demonstrated a similar pattern of expression to fluorescent IHC with higher expression of vimentin in treatments with Mφ-SN compared to direct antigens (p<0.05 for Mφ-SNFIB-CIT, Mφ-SNFIB-MAA-CIT; Figures 5C, D).