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- W3049404477 endingPage "104907" @default.
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- W3049404477 abstract "Despite the availability of a highly effective yellow fever virus (YFV) vaccine, outbreaks of yellow fever frequently occur in Africa and South America with significant mortality, highlighting the pressing need for antiviral drugs to manage future outbreaks. To support the discovery and development of antiviral drugs against YFV, we characterized a panel of rabbit polyclonal antibodies against the three YFV structural proteins and five non-structural proteins and demonstrated these antibody reagents in conjunction with viral RNA metabolic labeling, double-stranded RNA staining and membrane floatation assays as powerful tools for investigating YFV polyprotein processing, replication complex formation, viral RNA synthesis and high throughput discovery of antiviral drugs. Specifically, the proteolytic processing of the viral polyprotein can be analyzed by Western blot assays. The predominant nuclear localization of NS5 protein as well as the relationship between intracellular viral non-structural protein distribution and foci of YFV RNA replication can be revealed by immunofluorescence staining and membrane flotation assays. Using an antibody against YFV NS4B protein as an example, in-cell western and high-content imaging assays have been developed for high throughput discovery of antiviral agents. A synergistic antiviral effect of an YFV NS4B-targeting antiviral agent BDAA and a NS5 RNA-dependent RNA polymerase inhibitor (Sofosbuvir) was also demonstrated with the high-content imaging assay. Apparently, the antibody-based assays established herein not only facilitate the discovery and development of antiviral agents against YFV, but also provide valuable tools to dissect the molecular mechanism by which the antiviral agents inhibit YFV replication." @default.
- W3049404477 created "2020-08-21" @default.
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- W3049404477 date "2020-10-01" @default.
- W3049404477 modified "2023-10-12" @default.
- W3049404477 title "Development of antibody-based assays for high throughput discovery and mechanistic study of antiviral agents against yellow fever virus" @default.
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- W3049404477 doi "https://doi.org/10.1016/j.antiviral.2020.104907" @default.
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