Establishment of a High-Throughput Assay to Monitor Influenza A Virus RNA Transcription and Replication

Influenza A virus (IAV) poses significant threats to public health because of the recent emergence of highly pathogenic strains and wide-spread resistance to available anti-influenza drugs. Therefore, new antiviral targets and new drugs to fight influenza virus infections are needed. Although IAV RN...

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Veröffentlicht in:PloS one 2015-07, Vol.10 (7), p.e0133558-e0133558
Hauptverfasser: Wang, Zhen, Zhao, Fei, Gao, Qian, Liu, Zhenlong, Zhang, Yongxin, Li, Xiaoyu, Li, Yuhuan, Ma, Weilie, Deng, Tao, Zhang, Zhizhen, Cen, Shan
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container_issue 7
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container_title PloS one
container_volume 10
creator Wang, Zhen
Zhao, Fei
Gao, Qian
Liu, Zhenlong
Zhang, Yongxin
Li, Xiaoyu
Li, Yuhuan
Ma, Weilie
Deng, Tao
Zhang, Zhizhen
Cen, Shan
description Influenza A virus (IAV) poses significant threats to public health because of the recent emergence of highly pathogenic strains and wide-spread resistance to available anti-influenza drugs. Therefore, new antiviral targets and new drugs to fight influenza virus infections are needed. Although IAV RNA transcription/replication represents a promising target for antiviral drug development, no assay ideal for high-throughput screening (HTS) application is currently available to identify inhibitors targeting these processes. In this work, we developed a novel HTS assay to analyze the transcription and replication of IAV RNA using an A549 cell line stably expressing IAV RNA-dependent RNA polymerase (RdRp) complex, NP and a viral mini-genomic RNA. Both secreted Gaussia luciferase (Gluc) and blasticidin resistance gene (Bsd) were encoded in the viral minigenome and expressed under the control of IAV RdRp. Gluc serves as a reporter to monitor the activity of IAV RdRp, and Bsd is used to maintain the expression of all foreign genes. Biochemical studies and the statistical analysis presented herein demonstrate the high specificity, sensitivity and reproducibility of the assay. This work provides an ideal HTS assay for the identification of inhibitors targeting the function of IAV RdRp and a convenient reporting system for mechanism study of IAV RNA transcription / replication.
doi_str_mv 10.1371/journal.pone.0133558
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This is an open access article distributed under the terms of the Creative Commons Attribution License: http://creativecommons.org/licenses/by/4.0/ (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><rights>2015 Wang et al 2015 Wang et al</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c758t-1c44038c02fb05503ef356f8171233f6ec1134dd5007b10baa87d602ec851b403</citedby><cites>FETCH-LOGICAL-c758t-1c44038c02fb05503ef356f8171233f6ec1134dd5007b10baa87d602ec851b403</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC4511416/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC4511416/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,727,780,784,864,885,2102,2928,23866,27924,27925,53791,53793</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/26196128$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><contributor>Digard, Paul</contributor><creatorcontrib>Wang, Zhen</creatorcontrib><creatorcontrib>Zhao, Fei</creatorcontrib><creatorcontrib>Gao, Qian</creatorcontrib><creatorcontrib>Liu, Zhenlong</creatorcontrib><creatorcontrib>Zhang, Yongxin</creatorcontrib><creatorcontrib>Li, Xiaoyu</creatorcontrib><creatorcontrib>Li, Yuhuan</creatorcontrib><creatorcontrib>Ma, Weilie</creatorcontrib><creatorcontrib>Deng, Tao</creatorcontrib><creatorcontrib>Zhang, Zhizhen</creatorcontrib><creatorcontrib>Cen, Shan</creatorcontrib><title>Establishment of a High-Throughput Assay to Monitor Influenza A Virus RNA Transcription and Replication</title><title>PloS one</title><addtitle>PLoS One</addtitle><description>Influenza A virus (IAV) poses significant threats to public health because of the recent emergence of highly pathogenic strains and wide-spread resistance to available anti-influenza drugs. 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Therefore, new antiviral targets and new drugs to fight influenza virus infections are needed. Although IAV RNA transcription/replication represents a promising target for antiviral drug development, no assay ideal for high-throughput screening (HTS) application is currently available to identify inhibitors targeting these processes. In this work, we developed a novel HTS assay to analyze the transcription and replication of IAV RNA using an A549 cell line stably expressing IAV RNA-dependent RNA polymerase (RdRp) complex, NP and a viral mini-genomic RNA. Both secreted Gaussia luciferase (Gluc) and blasticidin resistance gene (Bsd) were encoded in the viral minigenome and expressed under the control of IAV RdRp. Gluc serves as a reporter to monitor the activity of IAV RdRp, and Bsd is used to maintain the expression of all foreign genes. Biochemical studies and the statistical analysis presented herein demonstrate the high specificity, sensitivity and reproducibility of the assay. This work provides an ideal HTS assay for the identification of inhibitors targeting the function of IAV RdRp and a convenient reporting system for mechanism study of IAV RNA transcription / replication.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>26196128</pmid><doi>10.1371/journal.pone.0133558</doi><oa>free_for_read</oa></addata></record>
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subjects Analysis
Antiviral agents
Assaying
Biochemistry
Biotechnology
Cell Line, Tumor
Cell Survival
DNA-directed RNA polymerase
Drug development
Drug resistance
Drug Resistance, Viral - genetics
Drugs
Gaussia
Gene expression
Genes, Reporter
Genetic research
Genome
Genome, Viral
Genomes
Health risks
HEK293 Cells
High-throughput screening
Humans
Immunization
Influenza
Influenza A
Influenza A virus - genetics
Influenza A virus - physiology
Influenza, Human - virology
Inhibitors
Luciferase
Luciferases - metabolism
Plasmids
Proteins
Public health
Pyrrolidinones
Replication
Reproducibility
Reproducibility of Results
Ribonucleic acid
RNA
RNA Replicase - genetics
RNA viruses
RNA, Small Interfering - metabolism
RNA, Viral - genetics
RNA-directed RNA polymerase
Sensitivity analysis
Statistical analysis
Transcription
Transcription (Genetics)
Transcription, Genetic
Viral infections
Virology
Virus replication
Virus Replication - drug effects
Viruses
title Establishment of a High-Throughput Assay to Monitor Influenza A Virus RNA Transcription and Replication
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