NLRC5/CITA: A Key Player in Cancer Immune Surveillance.

NLRC5/CITA: A Key Player in Cancer Immune Surveillance.
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DOI:
10.1016/j.trecan.2016.12.003
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发表时间:
2017-01
期刊:
影响因子:
18.4
通讯作者:
Kobayashi KS
Kobayashi KS
中科院分区:
医学1区
文献类型:
--
作者:
Yoshihama S;Vijayan S;Sidiq T;Kobayashi KS

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癌细胞需要逃避免疫监视才能成功生长。MHC I类分子的缺失被描述为许多癌症中的主要免疫逃避策略。MHC I类反式激活因子(CITA)NLRC 5是MHC I类基因的关键转录辅激活因子。最近的遗传学研究表明,NLRC 5是癌症免疫逃避机制的主要靶点。由启动子甲基化、拷贝数丢失或体细胞突变引起的NLRC 5表达或活性降低与MHC I类表达缺陷、细胞毒性T细胞活化受损和患者预后不良相关。本文就NLRC 5在肿瘤免疫逃避中的作用及未来的研究展望作一综述。
Cancer cells need to escape immune surveillance for successful tumor growth. Loss of MHC class I has been described as a major immune evasion strategy in many cancers. MHC class I transactivator (CITA), NLRC5, has found to be a key transcription coactivator of MHC class I genes. Recent genetic studies revealed that NLRC5 is a major target for cancer immune evasion mechanism. The reduced expression or activity of NLRC5 caused by promoter methylation, copy number loss, or somatic mutations is associated with defective MHC class I expression, impaired cytotoxic T cell activation and poor patient prognosis. Here we review the role of NLRC5 in cancer immune evasion and the future prospects for cancer research.
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