Western blot analysis of IL-22Rα1 expression in FLS of PsA, RA and OA patients. Expression of IL-22Rα1 in FLS isolated from PsA (n = 5), RA (n = 5) and OA (n = 5) patients was assessed. (A) A representative western blot showing expression of IL-22Rα1 in PsA, RA and OA patients. (B) A bar diagram showing relative intensity (R.I) of IL-22Rα1 expression in FLS obtained from PsA, RA and OA patients. Results were expressed as Mean ± SEM. Non parametric test, Kruskal Wallis with Dunn's multiple comparison test was done to determine the statistical significance.