Induction of T cell anergy: integration of environmental cues and infectious tolerance.

Induction of T cell anergy: integration of environmental cues and infectious tolerance.
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DOI:
10.1016/j.coi.2010.08.005
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发表时间:
2010-10
影响因子:
7
通讯作者:
Schwartz RH
Schwartz RH
中科院分区:
医学2区
文献类型:
--
作者:
Chappert P;Schwartz RH

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无反应性是T细胞中的长期低反应性状态,其特征在于TCR信号传导和IL-2表达的主动抑制。已经描述了几种形式的无反应性,并且最近几年已经揭示了越来越多的参与淋巴细胞中该状态的诱导和主动维持的“无反应性因子”。mTOR和其他相关的代谢传感器和调节器的作用最近已经出现,在扩大我们对无能量诱导信号的看法方面特别重要。我们将讨论这些分子在调节无反应性和活化之间的选择中的作用,这是所有接受TCR刺激的T细胞所面临的决定。然后,我们将探讨无反应性的诱导和调节性T细胞的诱导之间的关系,以及负责感染耐受现象的潜在串扰。
Anergy is a state of long term hyporesponsiveness in T cells that is characterized by an active repression of TCR signaling and IL-2 expression. Several forms of anergy have been described and the last few years have brought to light an increasing number of “anergic factors” involved in the induction and the active maintenance of the state in lymphocytes. The role of mTOR and other related metabolic sensors and regulators has recently emerged as of particular importance in broadening our view of anergy-inducing signals. We will discuss the role of these molecules in regulating the choice between anergy and activation, a decision faced by all T cells undergoing TCR stimulation. We will then explore the relationship between the induction of anergy and the induction of regulatory T cells as well as the potential crosstalk responsible for the phenomenon of infectious tolerance.
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