Phosphatidylserine vesicles enable efficient en bloc transmission of enteroviruses.

Phosphatidylserine vesicles enable efficient en bloc transmission of enteroviruses.
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DOI:
10.1016/j.cell.2015.01.032
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发表时间:
2015-02-12
期刊:
影响因子:
64.5
通讯作者:
Altan-Bonnet N
Altan-Bonnet N
中科院分区:
生物学1区
文献类型:
--
作者:
Chen YH;Du W;Hagemeijer MC;Takvorian PM;Pau C;Cali A;Brantner CA;Stempinski ES;Connelly PS;Ma HC;Jiang P;Wimmer E;Altan-Bonnet G;Altan-Bonnet N

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A central paradigm within virology is that each viral particle largely behaves as an independent infectious unit. Here we demonstrate that clusters of enteroviral particles are packaged within phosphatidylserine (PS) lipid-enriched vesicles that are non-lytically released from cells and provide greater infection efficiency than free single viral particles. We show that vesicular PS lipids are co-factors to the relevant enterovirus receptors in mediating subsequent infectivity and transmission, in particular to primary human macrophages. We demonstrate that clustered packaging of viral particles within vesicles enables multiple viral RNA genomes to be collectively transferred into single cells. This study reveals a novel mode of viral transmission, where enteroviral genomes are transmitted from cell-to-cell en bloc in membrane-bound PS vesicles instead of single independent genomes. This has implications for facilitating genetic cooperativity among viral quasispecies as well as enhancing viral replication.
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