Applying the TOR(C)QUE in iNKT cells: A new twist in an old tale.

Applying the TOR(C)QUE in iNKT cells: A new twist in an old tale.
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在 iNKT 细胞中应用 TOR(C)QUE:旧故事的新转折。

DOI:
10.1002/eji.201746921
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发表时间:
2017
影响因子:
5.4
通讯作者:
Kee,BarbaraL
Kee,BarbaraL
中科院分区:
医学3区
文献类型:
--
作者:
Verykokakis,Mihalis;Kee,BarbaraL

文献摘要

相似文献

哺乳动物雷帕霉素靶蛋白 (mTOR) 是 mTOR 复合物 1 (mTORC1) 和 mTORC2 的组成部分,控制 T 细胞激活、分化和记忆形成所需的机制,在 AKT 的下游和上游发挥作用。不变自然杀伤 T (iNKT) 细胞是一种独特的 T 细胞亚群,以启动状态存在,能够快速激活并产生大量细胞因子。 iNKT 细胞效应细胞分化依赖于 mTORC1 复合物;然而,iNKT 细胞对 mTORC2 的要求一直存在争议。在本期中,Sklarz 等人。 [欧元。 J.免疫学。 2017. 47: 516–526] 仔细分析了 iNKT 细胞中 mTORC2 成分 Rictor 的要求,为这个正在展开的故事提供了新的转折。作者证明,在胸腺内扩张的关键阶段,Rictor 是 iNKT 细胞增殖和存活所必需的,并且 Rictor 支持 NKT17 细胞的发育,NKT17 细胞是一个依赖于转录因子 RORγt 并在胸腺和肺中产生白细胞介素 (IL)-17 的效应器子集。产生 IL-4 的 NKT2 细胞在没有 Rictor 的情况下发育,但 iNKT 细胞的细胞毒性潜力是 Rictor 依赖性的。
The mammalian Target of Rapamycin (mTOR) protein controls the machinery necessary for T‐cell activation, differentiation, and memory formation, as a component of mTOR complex 1 (mTORC1) and mTORC2, which function both downstream and upstream of AKT. Invariant natural killer T (iNKT) cells are a unique T‐cell subset that exist in a primed state, capable of rapid activation, and produce large quantities of cytokines. iNKT‐cell effector differentiation is dependent on the mTORC1 complex; however, the requirements for mTORC2 in iNKT cells have been controversial. In this issue, Sklarz et al. [Eur. J. Immunol. 2017. 47: 516–526] provide a careful analysis of the requirements for the mTORC2 component Rictor in iNKT cells, providing a new twist in this unfolding tale. The authors demonstrate that Rictor is required for iNKT‐cell proliferation and survival during the key stage of intrathymic expansion and that Rictor supports the development of NKT17 cells, an effector subset which depends on the transcription factor RORγt and produces interleukin (IL)‐17, in both the thymus and the lung. IL‐4‐producing NKT2 cells develop in the absence of Rictor but the cytotoxic potential of iNKT cells is Rictor‐dependent.