Establishment of replication-competent vesicular stomatitis virus-based recombinant viruses suitable for SARS-CoV-2 entry and neutralization assays.

Establishment of replication-competent vesicular stomatitis virus-based recombinant viruses suitable for SARS-CoV-2 entry and neutralization assays.
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建立适合 SARS-CoV-2 进入和中和测定的、具有复制能力的水泡性口炎病毒重组病毒

DOI:
10.1080/22221751.2020.1830715
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发表时间:
2020-12
影响因子:
13.2
通讯作者:
Zheng A
Zheng A
中科院分区:
医学2区
文献类型:
--
作者:
Li H;Zhao C;Zhang Y;Yuan F;Zhang Q;Shi X;Zhang L;Qin C;Zheng A

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基于可复制水泡性口炎病毒(VSV)的重组病毒是研究2级生物安全设施中新出现的高致病性包膜病毒的有用工具。在此,我们使用编码SARS-CoV-2刺突蛋白的可复制重组VSV(rVSV)代替原始G糖蛋白(rVSV-eGFP-SARS-CoV-2)来开发SARS-CoV-2的高通量进入检测。将S蛋白掺入回收的rVSV-eGFP-SARS-CoV-2颗粒中,其可以被恢复期COVID-19患者的血清中和。重组SARS-CoV-2也显示出与野生型病毒相似的进入特性,如细胞嗜性和pH依赖性。用rVSV-eGFP-SARS-CoV-2测定的抗体和血清中和效价与野生型病毒或假病毒测定的中和效价高度相关。因此,这是一种安全、方便的SARS-CoV-2筛查工具,可能会促进COVID-19疫苗和治疗药物的开发。
Replication-competent vesicular stomatitis virus (VSV)-based recombinant viruses are useful tools for studying emerging and highly pathogenic enveloped viruses in level 2 biosafety facilities. Here, we used a replication-competent recombinant VSVs (rVSVs) encoding the spike (S) protein of SARS-CoV-2 in place of the original G glycoprotein (rVSV-eGFP-SARS-CoV-2) to develop a high-throughput entry assay for SARS-CoV-2. The S protein was incorporated into the recovered rVSV-eGFP-SARS-CoV-2 particles, which could be neutralized by sera from convalescent COVID-19 patients. The recombinant SARS-CoV-2 also displayed entry characteristics similar to the wild type virus, such as cell tropism and pH-dependence. The neutralizing titers of antibodies and sera measured by rVSV-eGFP-SARS-CoV-2 were highly correlated with those measured by wild-type viruses or pseudoviruses. Therefore, this is a safe and convenient screening tool for SARS-CoV-2, and it may promote the development of COVID-19 vaccines and therapeutics.
DOI: 10.1016/j.virol.2019.05.009
发表时间: 2019-07-01
期刊: VIROLOGY
影响因子: 3.7
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影响因子: --
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期刊: IMMUNITY
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影响因子: 12.7
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