Objective:To investigate the role of T help 17 cells(Th17)and STAT3-VEGF pathway in pathogenesis of psoriasis.Methods:A total of 50 cases of psoriasis guinea pigs and 20 normal guinea pigs were selected.The ratio of T...Objective:To investigate the role of T help 17 cells(Th17)and STAT3-VEGF pathway in pathogenesis of psoriasis.Methods:A total of 50 cases of psoriasis guinea pigs and 20 normal guinea pigs were selected.The ratio of Th17/IL-17 cell in peripheral blood were detected by flow cytometric analysis;STAT3 and VEGF concentrations were measured hy immunohistochemistry and Western blot.Results:The expression of Th17 in peripheral blood were significantly increased in psoriasis[(1.76±0.88)%]compared with controls[(0.48±0.27)%](P<0.05).Th17 related cytokine STAT3 and VEGF were significantly increased in psoriasis compared with controls(P<0.05),and were positively correlated the expression of Th17.Conclusions:The expressions of Th17,STAT3 and VEGF are elevated in psoriasis,which suggests Th17 cells have a potential role in the pathogenesis of psoriasis by STAT3-VEGF pathway.展开更多
白塞病是一种慢性复发性、与免疫相关的系统性变异性血管炎,其常见眼部表现为葡萄膜炎。T细胞免疫异常在白塞病发病中尤为显著。辅助性T细胞17(T help cell 17,Th17)/调节性T淋巴细胞(T regular cell,Treg)平衡能维持内环境稳态和免疫耐...白塞病是一种慢性复发性、与免疫相关的系统性变异性血管炎,其常见眼部表现为葡萄膜炎。T细胞免疫异常在白塞病发病中尤为显著。辅助性T细胞17(T help cell 17,Th17)/调节性T淋巴细胞(T regular cell,Treg)平衡能维持内环境稳态和免疫耐受,若失衡将导致多种自身免疫病,如白塞病葡萄膜炎。雷帕霉素靶蛋白(mammalian target of rapamycin,mTOR)参与调控T细胞生长发育,通过调控炎症通路促进Th17细胞分化和抑制Treg增殖,从而介导Th17/Treg失衡。近来,mTOR通过介导Th17/Treg失衡参与白塞病葡萄膜炎发病受到关注。本文就mTOR介导Th17/Treg失衡参与BD葡萄膜炎发病机制作一综述。展开更多
基金supported by Guangdong Medical Research Project(NoB2012240)
文摘Objective:To investigate the role of T help 17 cells(Th17)and STAT3-VEGF pathway in pathogenesis of psoriasis.Methods:A total of 50 cases of psoriasis guinea pigs and 20 normal guinea pigs were selected.The ratio of Th17/IL-17 cell in peripheral blood were detected by flow cytometric analysis;STAT3 and VEGF concentrations were measured hy immunohistochemistry and Western blot.Results:The expression of Th17 in peripheral blood were significantly increased in psoriasis[(1.76±0.88)%]compared with controls[(0.48±0.27)%](P<0.05).Th17 related cytokine STAT3 and VEGF were significantly increased in psoriasis compared with controls(P<0.05),and were positively correlated the expression of Th17.Conclusions:The expressions of Th17,STAT3 and VEGF are elevated in psoriasis,which suggests Th17 cells have a potential role in the pathogenesis of psoriasis by STAT3-VEGF pathway.
文摘炎性关节病包括一大类以外周关节炎为主要表现的风湿性疾病,如类风湿关节炎(rheumatoid arthritis,RA)、脊柱关节病(spondyloarthropathy,SpA)及其相关的关节炎,如强直性脊柱炎(ankylosingspondylitis,AS)、银屑病关节炎(psoriaticarthritis,PsA)和炎症性肠病关节炎等。免疫细胞在他们的发病过程中起了重要作用。近年又发现了一种以分泌IL-17为主的辅助性T细胞17(Thelpcell 17,Th17),其介导炎症反应。调节性T细胞(regulatory T cells,Treg)是一类具有免疫抑制作用的T细胞亚群。Th17与Treg细胞在分化过程中是密切相关的,多种细胞因子参与了他们的发育分化过程,Th17/Treg细胞的平衡对维持正常免疫应答、防止自身免疫性疾病具有重要意义。
文摘白塞病是一种慢性复发性、与免疫相关的系统性变异性血管炎,其常见眼部表现为葡萄膜炎。T细胞免疫异常在白塞病发病中尤为显著。辅助性T细胞17(T help cell 17,Th17)/调节性T淋巴细胞(T regular cell,Treg)平衡能维持内环境稳态和免疫耐受,若失衡将导致多种自身免疫病,如白塞病葡萄膜炎。雷帕霉素靶蛋白(mammalian target of rapamycin,mTOR)参与调控T细胞生长发育,通过调控炎症通路促进Th17细胞分化和抑制Treg增殖,从而介导Th17/Treg失衡。近来,mTOR通过介导Th17/Treg失衡参与白塞病葡萄膜炎发病受到关注。本文就mTOR介导Th17/Treg失衡参与BD葡萄膜炎发病机制作一综述。