Cutting Edge: Activation of STING in T Cells Induces Type I IFN Responses and Cell Death.

Cutting Edge: Activation of STING in T Cells Induces Type I IFN Responses and Cell Death.
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最前沿:T 细胞中 STING 的激活可诱导 I 型 IFN 反应和细胞死亡。

DOI:
10.4049/jimmunol.1601999
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发表时间:
2017-07-15
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
通讯作者:
Poltorak A
Poltorak A
中科院分区:
其他
文献类型:
--
作者:
Larkin B;Ilyukha V;Sorokin M;Buzdin A;Vannier E;Poltorak A

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STING 最初被描述为细胞内细菌和病毒 DNA 的传感器,也是先天免疫细胞中一个有前途的佐剂靶点;最近,STING 还被证明可以检测内源性 DNA,并在肿瘤免疫和自身免疫性疾病的发展中发挥作用。迄今为止,STING 已在巨噬细胞和树突状细胞中进行了研究。在这里,我们提供了 T 细胞中 STING 激活的第一个证据,其中 STING 激动剂不仅引发 IFN-I 产生和 ISG 表达,反映先天细胞的反应,而且还能够激活细胞应激和死亡途径。我们的结果表明,可能有必要重新评估基于 STING 激动剂的疗法,以确定对 T 细胞区室可能产生的影响。相反,STING 对 T 细胞的影响有可能用于治疗应用。
STING was initially described as a sensor of intracellular bacterial and viral DNA and a promising adjuvant target in innate immune cells; more recently STING has also been shown to detect endogenous DNA and play a role in tumor immunity and autoimmune disease development. Thus far STING has been studied in macrophages and dendritic cells. Here, we provide the first evidence of STING activation in T cells, in which STING agonists not only provoke IFN-I production and ISG expression, mirroring the response of innate cells, but are also capable of activating cell stress and death pathways. Our results suggest a reevaluation of STING agonist-based therapies may be necessary to identify possible effects on the T cell compartment. Conversely, the effects of STING on T cells could potentially be harnessed for therapeutic applications.
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