Visualizing the replication of respiratory syncytial virus in cells and in living mice.

Visualizing the replication of respiratory syncytial virus in cells and in living mice.
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可视化细胞和活小鼠中呼吸道合胞病毒的复制。

DOI:
10.1038/ncomms6104
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发表时间:
2014-10-03
影响因子:
16.6
通讯作者:
Eléouët JF
Eléouët JF
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Rameix-Welti MA;Le Goffic R;Hervé PL;Sourimant J;Rémot A;Riffault S;Yu Q;Galloux M;Gault E;Eléouët JF

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呼吸道合胞病毒(RSV)是犊牛和幼儿严重下呼吸道疾病的最重要病因,但目前没有人类疫苗,也没有有效的治疗方法。在这里,我们描述了一个重组人RSV反向遗传系统,其中红色荧光蛋白(mCherry)或萤火虫荧光素酶(Luc)基因插入RSV基因组。mCherry和Luc的表达与感染率相关,可以监测RSV在细胞培养中的增殖情况。利用生物发光成像技术可以观察到luc编码病毒在活体小鼠体内的复制过程,在感染小鼠鼻腔接种后,在其鼻部和肺部检测到生物发光。我们认为这些重组病毒是筛选抗RSV活性化合物的方便和有价值的工具,并且可以作为研究活小鼠抗病毒治疗效果的极其敏感的读数。本文的在线版本(doi:10.1038/ncomms6104)包含补充材料,可供授权用户使用。呼吸道合胞病毒(RSV)在幼儿中引起严重的呼吸道疾病。在这里,Rameix-Welti等人创建了荧光和生物发光的RSV菌株,可以实时分析病毒复制并筛选培养细胞和活体动物中的抗病毒化合物。本文的在线版本(doi:10.1038/ncomms6104)包含补充材料,可供授权用户使用。
Respiratory syncytial virus (RSV) is the most important cause of severe lower-respiratory tract disease in calves and young children, yet no human vaccine nor efficient curative treatments are available. Here we describe a recombinant human RSV reverse genetics system in which the red fluorescent protein (mCherry) or the firefly luciferase (Luc) genes are inserted into the RSV genome. Expression of mCherry and Luc are correlated with infection rate, allowing the monitoring of RSV multiplication in cell culture. Replication of the Luc-encoding virus in living mice can be visualized by bioluminescent imaging, bioluminescence being detected in the snout and lungs of infected mice after nasal inoculation. We propose that these recombinant viruses are convenient and valuable tools for screening of compounds active against RSV, and can be used as an extremely sensitive readout for studying effects of antiviral therapeutics in living mice. The online version of this article (doi:10.1038/ncomms6104) contains supplementary material, which is available to authorized users. Respiratory syncytial virus (RSV) causes severe respiratory disease in young children. Here, Rameix-Welti et al. create fluorescent and bioluminescent RSV strains that allow real-time analysis of viral replication and screening of antiviral compounds in cultured cells and in live animals. The online version of this article (doi:10.1038/ncomms6104) contains supplementary material, which is available to authorized users.
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