PECULIARITIES OF BLOOD CYTOKINE SPECTRUM IN THE PATIENTS WITH REACTIVE ARTHRITIS DUE TO ETIOLOGY, INFLAMMATION ACTIVITY AND PRESENCE OF HLA-B27 ANTIGEN

The aim of our study was to investigate the cytokine profile due to the etiology, inflammation activity, and presence of HLA-B27 antigen in the patients with reactive arthritis. The study showed a direct dependence of IL-4, IL-6 and the TNF-α on the degree of activity of ReA with chronic pyelonephritis. The presence of HLA-B27 antigen in the patients with reactive arthritis and chronic pyelonephritis accompanied by an increasing of proinflammatory cytokines such as IL-1β, IL-6, PNP-α, IL-1R in comparison with the HLA-B27-negative patients. The results of study demonstrated that maximum serum levels of IL-6 and IFN-γ in the patients with reactive arthritis that occurred on the background of acute urogenital infection were significantly higher than in the other etiological cases of reactive arthritis.