Simple reverse genetics systems for Asian and African Zika viruses.

Simple reverse genetics systems for Asian and African Zika viruses.
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DOI:
10.1038/srep39384
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发表时间:
2016-12-19
期刊:
影响因子:
4.6
通讯作者:
Nougairède A
Nougairède A
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Atieh T;Baronti C;de Lamballerie X;Nougairède A

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寨卡病毒(ZIKV)是一种重新出现的病原体的典型例子,最近在太平洋岛屿和美洲引起了大规模爆发,与先天性疾病和神经系统并发症有关。破译这种蚊媒病原体的自然历史、生态学和病理生理学需要有效的反向遗传学工具。在目前的研究中,使用无菌的“感染性亚基因组扩增子”(伊萨)方法,我们通过非营利的欧洲病毒档案馆收集,为ZIKV生成并提供给科学界两个简单而有效的反向遗传学系统。一种是基于属于爆发谱系的亚洲ZIKV毒株(法属波利尼西亚2013)。第二个是根据低传代ZIKV非洲株的序列设计的(Dakar 1984)。使用伊萨程序,我们在数天内衍生出野生型和多种特异性工程化的ZIKV(谱系内和谱系间嵌合体)。由于它们基于低传代ZIKV毒株,这些工程化病毒提供了理想的工具来研究在ZIKV的不同进化时间尺度中观察到的遗传变化的影响以及ZIKV感染的病理生理学。
Zika virus (ZIKV), a typical example of a re‐emerging pathogen, recently caused large outbreaks in Pacific islands and the Americas, associated with congenital diseases and neurological complications. Deciphering the natural history, ecology and pathophysiology of this mosquito-borne pathogen requires effective reverse genetics tools. In the current study, using the bacterium-free ‘Infectious Subgenomic Amplicons’ (ISA) method, we generated and made available to the scientific community via the non-profit European Virus Archive collection, two simple and performing reverse genetics systems for ZIKV. One is based on an Asian ZIKV strain belonging to the outbreak lineage (French Polynesia 2013). The second was designed from the sequence of a low-passaged ZIKV African strain (Dakar 1984). Using the ISA procedure, we derived wild-type and a variety of specifically engineered ZIKVs in days (intra- and inter-lineage chimeras). Since they are based on low-passaged ZIKV strains, these engineered viruses provide ideal tools to study the effect of genetic changes observed in different evolutionary time-scales of ZIKV as well as pathophysiology of ZIKV infections.
DOI: 10.1126/science.aaf5036
发表时间: 2016-04-15
期刊: Science (New York, N.Y.)
影响因子: --
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期刊: The Journal of general virology
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发表时间: 2016-09
期刊: mSphere
影响因子: 4.8
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发表时间: 2016-12-15
期刊: The New England journal of medicine
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发表时间: 2014-06-05
期刊: Genome announcements
影响因子: --
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