HIV and HLA class I: an evolving relationship.

HIV and HLA class I: an evolving relationship.
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DOI:
10.1016/j.immuni.2012.09.005
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发表时间:
2012-09-21
期刊:
影响因子:
32.4
通讯作者:
Walker BD
Walker BD
中科院分区:
医学1区
文献类型:
--
作者:
Goulder PJ;Walker BD

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传染病疫苗的成功开发在很大程度上是在对病原体的自然免疫导致至少某些人清除的情况下实现的。艾滋病毒带来了另一个挑战,因为感染不会自然清除,免疫保护的相关性仍然不确定。然而,在艾滋病毒感染者中观察到病毒血症的部分控制和明显不同的疾病结局。在这里,我们研究了与极端结局相关的一个变量所涉及的抗病毒机制,即人类白细胞抗原I类等位基因,特别是人类白细胞抗原-B,并检查了这种调节可能发生的机制,以及这些相互作用对病毒和宿主进化的影响。到目前为止的研究为人类白细胞抗原依赖和表位依赖对病毒控制和病毒进化的影响提供了证据,并对继续寻求有效的艾滋病毒疫苗具有重要意义。
Successful vaccine development for infectious diseases has largely been achieved in settings where natural immunity to the pathogen results in clearance in at least some individuals. HIV presents an additional challenge in that natural clearance of infection does not occur, and the correlates of immune protection are still uncertain. However, partial control of viremia and markedly different outcomes of disease are observed in HIV infected persons. Here we examine the antiviral mechanisms implicated by one variable that has been consistently associated with extremes of outcome, namely HLA class I alleles, and in particular HLA-B, and examine the mechanisms by which this modulation is likely to occur, and the impact of these interactions on evolution of the virus and the host. Studies to date provide evidence for both HLA-dependent and epitope-dependent influences on viral control and viral evolution, and have important implications for the continued quest for an effective HIV vaccine.
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