Rudd Christopher E
Department of Pathology, Cell Signalling Section, University of Cambridge, Cambridge, UK.
Eur J Immunol. 2009 Mar;39(3):687-90. doi: 10.1002/eji.200939261.
CTLA-4 has potent regulatory effects on the threshold of T-cell signalling and, in the process, guards against the development of hyper-proliferation and autoimmunity. Despite this, the role of CTLA-4 on specific T-cell subsets has been unclear. Such studies could shed light on both the function of CTLA-4, and on the contribution of the subsets to the disease phenotype of the Ctla4(-/-) mouse. Recently, a role for this co-receptor in the function of Treg has been outlined and, in this issue of the European Journal of Immunology, the selective targeting of the T-box transcription factor Eomes by CTLA-4 in the regulation of CD8(+) cytolytic T-cell (CTL) effector function is shown. Together, these papers shed light on the role of CTLA-4 in different T-cell subsets.
细胞毒性T淋巴细胞相关抗原4(CTLA-4)对T细胞信号转导阈值具有强大的调节作用,在此过程中,可防止过度增殖和自身免疫的发生。尽管如此,CTLA-4在特定T细胞亚群中的作用仍不清楚。此类研究可能有助于阐明CTLA-4的功能,以及这些亚群对Ctla4基因敲除(-/-)小鼠疾病表型的贡献。最近,已概述了这种共受体在调节性T细胞(Treg)功能中的作用,并且在本期《欧洲免疫学杂志》中,展示了CTLA-4在调节CD8(+)细胞毒性T细胞(CTL)效应器功能时对T盒转录因子Eomes的选择性靶向作用。这些论文共同揭示了CTLA-4在不同T细胞亚群中的作用。