Pathways of antigen processing.

Pathways of antigen processing.
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DOI:
10.1146/annurev-immunol-032712-095910
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发表时间:
2013
影响因子:
29.7
通讯作者:
Cresswell P
Cresswell P
中科院分区:
医学1区
文献类型:
--
作者:
Blum JS;Wearsch PA;Cresswell P

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T细胞对抗原提呈细胞的识别依赖于它们与主要组织相容性复合体I类(MHC-I)和II类(MHC-II)分子结合的一系列多肽的表达。病原体或转化细胞的抗原转化为MHC-I和MHC-II结合的多肽对于增强保护性T细胞反应至关重要,而类似的自身蛋白处理对于建立和维持耐受性是必要的。细胞使用各种机制来获得蛋白质抗原,从胞浆中的翻译到内吞作用主题的变化,并在获得后将其降解。在这篇综述中,我们重点介绍了MHC-I和MHC-II的生物合成和组装方面,这些方面已经进化到与这些途径相交并对产生的多肽进行采样。
T cell recognition of antigen presenting cells depends on their expression of a spectrum of peptides bound to Major Histocompatibility Complex class I (MHC-I) and class II (MHC-II) molecules. Conversion of antigens from pathogens or transformed cells into MHC-I and MHC-II-bound peptides is critical for mounting protective T cell responses, and similar processing of self proteins is necessary to establish and maintain tolerance. Cells use a variety of mechanisms to acquire protein antigens, from translation in the cytosol to variations on the theme of endocytosis, and to degrade them once acquired. In this review we highlight the aspects of MHC-I and MHC-II biosynthesis and assembly that have evolved to intersect these pathways and sample the peptides that are produced.
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发表时间: 2005-01-01
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