(+)RNA viruses rewire cellular pathways to build replication organelles.

(+)RNA viruses rewire cellular pathways to build replication organelles.
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DOI:
10.1016/j.coviro.2012.09.006
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发表时间:
2012-12
影响因子:
5.9
通讯作者:
van Kuppeveld FJ
van Kuppeveld FJ
中科院分区:
医学2区
文献类型:
--
作者:
Belov GA;van Kuppeveld FJ

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► (+)RNA 病毒使用保守机制构建膜复制复合体。 ► 几乎所有 (+)RNA 病毒都会主动改变脂质合成。 ► 分泌途径成分有助于许多 (+)RNA 病毒的复制。 ► 被劫持的宿主因子被整合到未感染细胞中未发现的网络中。 ► 复制细胞器的膜组成与预先存在的膜不同。正链 RNA [(+)RNA] 病毒的复制机制表现出显着程度的保守性。 (+)RNA病毒对基因组复制的细胞膜的普遍需求,以及具有相似结构的膜复制细胞器的形成,表明它们针对真核生物中保守的膜代谢的基本控制机制。最近,在理解复制细胞器发育中被劫持的关键宿主因子和途径的作用方面取得了重大进展。此外,电子断层扫描研究为它们的超微结构提供了新的线索。总的来说,这些研究揭示了复制膜空间组织的意外复杂性,并表明 (+)RNA 病毒主动改变细胞膜组成以构建其复制细胞器。
► (+)RNA viruses use conserved mechanisms to build membranous replication complexes. ► Virtually all (+)RNA viruses actively modify lipid synthesis. ► Secretory pathway components contribute to replication of many (+)RNA viruses. ► Hijacked host factors are integrated into networks not found in uninfected cells. ► Membrane composition of replication organelles differs from pre-existing membranes. Positive-strand RNA [(+)RNA] viruses show a significant degree of conservation of their mechanisms of replication. The universal requirement of (+)RNA viruses for cellular membranes for genome replication, and the formation of membranous replication organelles with similar architecture, suggest that they target essential control mechanisms of membrane metabolism conserved among eukaryotes. Recently, significant progress has been made in understanding the role of key host factors and pathways that are hijacked for the development of replication organelles. In addition, electron tomography studies have shed new light on their ultrastructure. Collectively, these studies reveal an unexpected complexity of the spatial organization of the replication membranes and suggest that (+)RNA viruses actively change cellular membrane composition to build their replication organelles.
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