Deubiquitinases as pivotal regulators of T cell functions.

Deubiquitinases as pivotal regulators of T cell functions.
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去泛素酶作为 T 细胞功能的关键调节因子

DOI:
10.1007/s11684-018-0651-y
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发表时间:
2018-08
影响因子:
8.1
通讯作者:
Sun SC
Sun SC
中科院分区:
医学1区
文献类型:
--
作者:
Yang XD;Sun SC

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T细胞有效地应答外来抗原以介导针对感染的免疫应答,但对自身组织具有耐受性。T细胞活化的缺陷与严重的免疫缺陷相关,而异常的T细胞活化有助于多种自身免疫性和炎性疾病的发病机制。一种新兴的调节T细胞活化和耐受性的机制是泛素化,这是一种可逆的蛋白质修饰过程,由泛素化酶和去泛素化酶(DUB)反向调节。DUB是异肽酶,其切割多聚泛素链并从靶蛋白去除泛素,从而控制泛素信号传导的幅度和持续时间。现在公认DUB是T细胞应答的关键调节剂,并且在免疫学病症和癌症的治疗中用作操纵免疫应答的潜在治疗靶标。本文就DUBs在T细胞中的功能研究进展作一综述。
T cells efficiently respond to foreign antigens to mediate immune responses against infections but are tolerant to self-tissues. Defect in T cell activation is associated with severe immune deficiencies, whereas aberrant T cell activation contributes to the pathogenesis of diverse autoimmune and inflammatory diseases. An emerging mechanism that regulates T cell activation and tolerance is ubiquitination, a reversible process of protein modification that is counter-regulated by ubiquitinating enzymes and deubiquitinases (DUBs). DUBs are isopeptidases that cleave polyubiquitin chains and remove ubiquitin from target proteins, thereby controlling the magnitude and duration of ubiquitin signaling. It is now well recognized that DUBs are crucial regulators of T cell responses and serve as potential therapeutic targets for manipulating immune responses in the treatment of immunological disorders and cancer. This review will discuss the recent progresses regarding the functions of DUBs in T cells.
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