A Rab-centric perspective of bacterial pathogen-occupied vacuoles.

A Rab-centric perspective of bacterial pathogen-occupied vacuoles.
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DOI:
10.1016/j.chom.2013.08.010
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发表时间:
2013-09-11
影响因子:
30.3
通讯作者:
Roy CR
Roy CR
中科院分区:
医学1区
文献类型:
--
作者:
Sherwood RK;Roy CR

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产生和维持支持细菌复制的专门细胞器的能力是许多细胞内病原体的重要毒力特性。生活在膜结合的空泡中提出了固有的挑战,包括需要将质膜衍生的细胞器改造成一种新的结构,该结构将扩展并提供必需的营养物质以支持复制,同时还使空泡避免靶向细菌在溶酶体中破坏的膜转运途径。很明显,病原菌使用不同的策略来完成这些任务。宿主Rab GTP酶与病原体占据的空泡相关联的动力学提供了对不同细菌操纵宿主膜运输的机制的深入了解。在这篇综述中,我们强调了一些细菌用来维持病原体占据的空泡的策略,专注于Rab蛋白参与这些新的细胞器的生物发生和维护。
The ability to create and maintain a specialized organelle that supports bacterial replication is an important virulence property for many intracellular pathogens. Living in a membrane-bound vacuole presents inherent challenges including the need to remodel a plasma membrane-derived organelle into a novel structure that will expand and provide essential nutrients to support replication, while also having the vacuole avoid membrane transport pathways that target bacteria for destruction in lysosomes. It is clear that pathogenic bacteria use different strategies to accomplish these tasks. The dynamics by which host Rab GTPases associate with pathogen-occupied vacuoles provides insight into the mechanisms used by different bacteria to manipulate host membrane transport. In this review we highlight some of the strategies bacteria use to maintain a pathogen-occupied vacuole by focusing on the Rab proteins involved in biogenesis and maintenance of these novel organelles.
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