Adenovirus membrane penetration: Tickling the tail of a sleeping dragon.

Adenovirus membrane penetration: Tickling the tail of a sleeping dragon.
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DOI:
10.1016/j.virol.2015.03.006
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发表时间:
2015-05
期刊:
影响因子:
3.7
通讯作者:
Nemerow GR
Nemerow GR
中科院分区:
医学3区
文献类型:
--
作者:
Wiethoff CM;Nemerow GR

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与几乎所有病毒病原体一样,无包膜病毒(NEV)必须在潜在的恶劣环境条件下保持其完整性,同时保持在宿主细胞内正确的时间和正确的位置进行快速分解的能力。NEV通常以这种亚稳态存在,直到它们遇到关键的细胞刺激,如膜受体、细胞内pH值降低、细胞蛋白酶消化或这些因素的组合。这些刺激触发病毒衣壳的构象变化,暴露出隔离的膜扰动蛋白。该蛋白随后以允许病毒体和伴随的核酸有效载荷进入细胞质的方式修饰细胞膜。不同的NEV采用这种进入细胞的一般途径的变化(1),然而,本综述将重点关注人类腺病毒(HAdV)进入细胞的重要新知识。
As is the case for nearly every viral pathogen, non-enveloped viruses (NEV) must maintain their integrity under potentially harsh environmental conditions while retaining the ability to undergo rapid disassembly at the right time and right place inside host cells. NEVs generally exist in this metastable state until they encounter key cellular stimuli such as membrane receptors, decreased intracellular pH, digestion by cellular proteases, or a combination of these factors. These stimuli trigger conformational changes in the viral capsid that exposes a sequestered membrane-perturbing protein. This protein subsequently modifies the cell membrane in such a way as to allow passage of the virion and accompanying nucleic acid payload into the cell cytoplasm. Different NEVs employ variations of this general pathway for cell entry (1), however this review will focus on significant new knowledge obtained on cell entry by human adenovirus(HAdV).
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