摘要
Th17细胞是新近发现的T淋巴细胞亚群。作为不同于Th1、Th2的细胞亚群,已经被证实在自身免疫病、感染、炎症等疾病中发挥重要作用。IL-21作为Th17细胞的自分泌调节因子,在Th17细胞功能的维持、抑制Th1、调节性T细胞(Treg)分化等方面发挥关键作用。Th17细胞能够自分泌产生IL-21,从而促进自身分化过程。IL-21在Th17细胞维持中的作用及潜在机制的揭示,必将为Th17细胞致病机制的探索提供新思路。
Th17 cell has recently been identified as an IL-17-producing CD4^+ Th cell, and its functions and regulatory mechanisms in immune responses have been studied extensively. Functional studies have provided evidence that Th17 cells are important for the modulation of autoimmune responses and inflammation. Murine Th17 cell differentiation is promoted by the coordinated functions of distinct cytokines including TGFβ, IL-6,IL-21 and IL-23, whereas IL-2,IL-4,IFNγ and IL-27 inhibit Th17 ceil differentiation. Th17 cell could produce IL-21 ,thus promotes auto-differentiation. IL-21 is the new target in Th17 cell-mediated diseases.
出处
《国际免疫学杂志》
CAS
北大核心
2011年第4期274-276,共3页
International Journal of Immunology
基金
国家自然科学基金青年基金(30800481)