Th17/Treg cells regulated by interleukin 6 in the pathogenesis of chronic rhinosinusitis with nasal polyps

To be investigated whether Th17/Treg cells regulated by Interleukin-6 in the pathogenesis of chronic rhinosinusitis with nasal polyps. The distributions of Th17 and Treg cells in peripheral blood mononuclear cells (PBMCs) and tissues got from 46 CRSwNP patients and 14 controls were evaluated. Th17 and Treg cells and cells-related cytokines in serum were assessed in means of cytometric bead array (CBA) multiplex assays and enzyme-linked immunosorbent assays (ELISAs). Spleen cells were isolated from spleen of 20 normal BALB/c mice (male), isolated and purified with CD4 antibody immunomagnetic bead kit. CD4+ cells were divided into three groups, including TGF-β1, TGF-β1+ IL-6 and control (PBS). Treg and Th17 cells and cells related cytokines were detected by flow cytometry (FCM) after collecting spleen cells. The level of IL‐10 and IL‐17 in supernatant was measured by ELISA. Th17/Treg ratio and the level of IL-6 in both ECRSwNP (P