The role of the T cell in autoimmune inflammation.

The role of the T cell in autoimmune inflammation.
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DOI:
10.1186/ar1703
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发表时间:
2005
影响因子:
4.9
通讯作者:
Schulze-Koops H
Schulze-Koops H
中科院分区:
医学2区
文献类型:
--
作者:
Skapenko A;Leipe J;Lipsky PE;Schulze-Koops H

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T细胞,特别是CD4+ T细胞,已经涉及介导自身免疫性炎症的许多方面。然而,目前的证据表明,CD4+ T细胞在类风湿性炎症的发展中所起的作用超过了驱动慢性自身免疫反应的激活的促炎性辅助性T细胞(Th)1效应细胞。具有调节能力的CD4+ T细胞亚群,如CD25+调节性T(Treg)细胞和Th2细胞,已经被鉴定,并且最近的观察表明,在类风湿性关节炎中,这些调节性T细胞的功能严重受损。因此,在类风湿性关节炎中,有缺陷的调节机制可能会导致外周耐受性的破坏,之后有害的Th1驱动的免疫反应演变并进展为慢性炎症。在这里,我们回顾了功能异常和不同的T细胞亚群的类风湿性炎症的贡献。
T cells, in particular CD4+ T cells, have been implicated in mediating many aspects of autoimmune inflammation. However, current evidence suggests that the role played by CD4+ T cells in the development of rheumatoid inflammation exceeds that of activated proinflammatory T-helper (Th)1 effector cells that drive the chronic autoimmune response. Subsets of CD4+ T cells with regulatory capacity, such as CD25+ regulatory T (Treg) cells and Th2 cells, have been identified, and recent observations suggest that in rheumatoid arthritis the function of these regulatory T cells is severely impaired. Thus, in rheumatoid arthritis, defective regulatory mechanisms might allow the breakdown of peripheral tolerance, after which the detrimental Th1-driven immune response evolves and proceeds to chronic inflammation. Here, we review the functional abnormalities and the contribution of different T cell subsets to rheumatoid inflammation.
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