New reverse genetics and transfection methods to rescue arboviruses in mosquito cells.

New reverse genetics and transfection methods to rescue arboviruses in mosquito cells.
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DOI:
10.1038/s41598-017-14522-6
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发表时间:
2017-10-25
期刊:
影响因子:
4.6
通讯作者:
Priet S
Priet S
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Atieh T;Nougairède A;Klitting R;Aubry F;Failloux AB;de Lamballerie X;Priet S

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反向遗传学是破解虫媒病毒生物学特性的重要工具。然而,尽管反向遗传学方法通常应用于脊椎动物细胞,但由于费力的分子生物学技术和围绕此类细胞转染的特定困难的结合,它们在昆虫细胞中的使用仍然不常见。为了利用脊椎动物和蚊子细胞中的反向遗传学研究,我们设计了一种改进的昆虫细胞DNA转染方案,然后证明了简单灵活的伊萨反向遗传学方法可以有效地应用于哺乳动物和蚊子细胞,在几天内产生属于黄病毒属的重组感染性正链RNA病毒(日本脑炎、黄热病、西尼罗河病毒和寨卡病毒)和甲病毒(基孔肯雅病毒)。这种方法代表了一种有效的选择,可能克服与虫媒病毒研究相关的技术问题。
Reverse genetics is a critical tool to decrypt the biological properties of arboviruses. However, whilst reverse genetics methods have been usually applied to vertebrate cells, their use in insect cells remains uncommon due to the conjunction of laborious molecular biology techniques and of specific difficulties surrounding the transfection of such cells. To leverage reverse genetics studies in both vertebrate and mosquito cells, we designed an improved DNA transfection protocol for insect cells and then demonstrated that the simple and flexible ISA (Infectious Subgenomic Amplicons) reverse-genetics method can be efficiently applied to both mammalian and mosquito cells to generate in days recombinant infectious positive-stranded RNA viruses belonging to genera Flavivirus (Japanese encephalitis, Yellow fever, West Nile and Zika viruses) and Alphavirus (Chikungunya virus). This method represents an effective option to potentially overcome technological issues related to the study of arboviruses.
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