Mechanisms of HIV protein degradation into epitopes: implications for vaccine design.

Mechanisms of HIV protein degradation into epitopes: implications for vaccine design.
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DOI:
10.3390/v6083271
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发表时间:
2014-08-21
期刊:
Viruses
影响因子:
--
通讯作者:
Le Gall S
Le Gall S
中科院分区:
其他
文献类型:
--
作者:
Rucevic M;Boucau J;Dinter J;Kourjian G;Le Gall S

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HIV来源的蛋白降解为MHC-I或MHC-II所显示的表位是导致启动HIV特异性免疫反应和识别受感染细胞的第一个事件。尽管关于参与蛋白质降解的多肽酶有丰富的信息,但我们对HIV感染过程中的表位呈现的了解仍然有限。在这里,我们回顾了目前关于HIV蛋白降解的数据,这些数据将表位产生和免疫优势、病毒进化和受损的表位呈现联系在一起。我们认为,深入了解HIV抗原在相关原代细胞中的处理和提呈,可以用来识别导致HIV蛋白质组中高效或低效表位递呈的信号,并改进免疫原的设计,以有效地识别所有感染的细胞。
The degradation of HIV-derived proteins into epitopes displayed by MHC-I or MHC-II are the first events leading to the priming of HIV-specific immune responses and to the recognition of infected cells. Despite a wealth of information about peptidases involved in protein degradation, our knowledge of epitope presentation during HIV infection remains limited. Here we review current data on HIV protein degradation linking epitope production and immunodominance, viral evolution and impaired epitope presentation. We propose that an in-depth understanding of HIV antigen processing and presentation in relevant primary cells could be exploited to identify signatures leading to efficient or inefficient epitope presentation in HIV proteomes, and to improve the design of immunogens eliciting immune responses efficiently recognizing all infected cells.
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