SENP3 maintains the stability and function of regulatory T cells via BACH2 deSUMOylation.

SENP3 maintains the stability and function of regulatory T cells via BACH2 deSUMOylation.
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SENP3 通过 BACH2 去SUMOylation 维持调节性 T 细胞的稳定性和功能

DOI:
10.1038/s41467-018-05676-6
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发表时间:
2018-08-08
影响因子:
16.6
通讯作者:
Zou Q
Zou Q
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Yu X;Lao Y;Teng XL;Li S;Zhou Y;Wang F;Guo X;Deng S;Chang Y;Wu X;Liu Z;Chen L;Lu LM;Cheng J;Li B;Su B;Jiang J;Li HB;Huang C;Yi J;Zou Q

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调节性T(Treg)细胞对于维持免疫稳态和耐受是必不可少的,但调节Treg细胞的稳定性和功能的机制尚未完全阐明。在这里,我们表明SUMO特异性蛋白酶3(SENP 3)是Treg细胞的关键调节因子,通过控制BACH 2的SUMO化和核定位发挥作用。Treg细胞特异性缺失Senp3导致T细胞活化、自身免疫症状和增强的抗肿瘤T细胞应答。SENP 3介导的BACH 2去SUMO化可阻止BACH 2的核输出,从而抑制与CD 4 +T效应细胞分化相关的基因并稳定Treg细胞特异性基因特征。值得注意的是,由活性氧(ROS)触发的SENP 3积累参与Treg细胞介导的肿瘤免疫抑制。我们的结果不仅确定了SENP 3在通过BACH 2去SUMO化维持Treg细胞稳定性和功能中的作用,而且还阐明了SENP 3在ROS诱导的免疫耐受的调节中的功能。
Regulatory T (Treg) cells are essential for maintaining immune homeostasis and tolerance, but the mechanisms regulating the stability and function of Treg cells have not been fully elucidated. Here we show SUMO-specific protease 3 (SENP3) is a pivotal regulator of Treg cells that functions by controlling the SUMOylation and nuclear localization of BACH2. Treg cell-specific deletion ofSenp3results in T cell activation, autoimmune symptoms and enhanced antitumor T cell responses. SENP3-mediated BACH2 deSUMOylation prevents the nuclear export of BACH2, thereby repressing the genes associated with CD4+T effector cell differentiation and stabilizing Treg cell-specific gene signatures. Notably, SENP3 accumulation triggered by reactive oxygen species (ROS) is involved in Treg cell-mediated tumor immunosuppression. Our results not only establish the role of SENP3 in the maintenance of Treg cell stability and function via BACH2 deSUMOylation but also clarify the function of SENP3 in the regulation of ROS-induced immune tolerance.
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