Roles of BTLA in Immunity and Immune Disorders.

Roles of BTLA in Immunity and Immune Disorders.
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DOI:
10.3389/fimmu.2021.654960
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发表时间:
2021
影响因子:
7.3
通讯作者:
Xiong H
Xiong H
中科院分区:
医学2区
文献类型:
--
作者:
Ning Z;Liu K;Xiong H

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B和T淋巴细胞衰减因子(BTLA)是最重要的共信号分子之一。它属于CD 28超家族,在结构和功能方面与程序性细胞死亡-1(PD-1)和细胞毒性T淋巴细胞相关抗原-4(CTLA-4)相似。BTLA可在大多数淋巴细胞中检测到,并通过抑制B和T细胞活化和增殖诱导免疫抑制。BTLA配体,疱疹病毒进入介体(HVEM),不属于经典的B7家族。相反,它是肿瘤坏死因子受体(TNFR)超家族的成员。BTLA与HVEM的关联直接桥接了CD 28和TNFR家族,并介导了广泛而强大的免疫效应。近年来,大量研究发现BTLA参与了肿瘤、炎症性疾病、自身免疫性疾病、感染性疾病、移植排斥等多种病理生理过程。本文就BTLA在免疫中的作用进行综述,并对BTLA在各种免疫疾病中的作用进行总结。
B and T lymphocyte attenuator (BTLA) is one of the most important cosignaling molecules. It belongs to the CD28 superfamily and is similar to programmed cell death-1 (PD-1) and cytotoxic T lymphocyte associated antigen-4 (CTLA-4) in terms of its structure and function. BTLA can be detected in most lymphocytes and induces immunosuppression by inhibiting B and T cell activation and proliferation. The BTLA ligand, herpesvirus entry mediator (HVEM), does not belong to the classic B7 family. Instead, it is a member of the tumor necrosis factor receptor (TNFR) superfamily. The association of BTLA with HVEM directly bridges the CD28 and TNFR families and mediates broad and powerful immune effects. Recently, a large number of studies have found that BTLA participates in numerous physiopathological processes, such as tumor, inflammatory diseases, autoimmune diseases, infectious diseases, and transplantation rejection. Therefore, the present work aimed to review the existing knowledge about BTLA in immunity and summarize the diverse functions of BTLA in various immune disorders.
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