Chemical Genomics Identifies the PERK-Mediated Unfolded Protein Stress Response as a Cellular Target for Influenza Virus Inhibition.
Identifieur interne : 000B91 ( Main/Exploration ); précédent : 000B90; suivant : 000B92Chemical Genomics Identifies the PERK-Mediated Unfolded Protein Stress Response as a Cellular Target for Influenza Virus Inhibition.
Auteurs : Sara Landeras-Bueno [Espagne] ; Yolanda Fernández [Espagne] ; Ana Falc N [Espagne] ; Juan Carlos Oliveros [Espagne] ; Juan Ortín [Espagne]Source :
- mBio [ 2150-7511 ] ; 2016.
Descripteurs français
- KwdFr :
- Acétates (pharmacologie), Grippe humaine (enzymologie), Grippe humaine (génétique), Grippe humaine (physiopathologie), Grippe humaine (virologie), Humains, Phosphorylation, Protéines virales (génétique), Protéines virales (métabolisme), Quinoléines (pharmacologie), Réplication virale (), Réponse aux protéines mal repliées (), Virus de la grippe A (), Virus de la grippe A (génétique), Virus de la grippe A (physiologie), eIF-2 Kinase (génétique), eIF-2 Kinase (métabolisme).
- MESH :
- enzymologie : Grippe humaine.
- génétique : Grippe humaine, Protéines virales, Virus de la grippe A, eIF-2 Kinase.
- métabolisme : Protéines virales, eIF-2 Kinase.
- pharmacologie : Acétates, Quinoléines.
- physiologie : Virus de la grippe A.
- physiopathologie : Grippe humaine.
- virologie : Grippe humaine.
- Humains, Phosphorylation, Réplication virale, Réponse aux protéines mal repliées, Virus de la grippe A.
English descriptors
- KwdEn :
- Acetates (pharmacology), Humans, Influenza A virus (drug effects), Influenza A virus (genetics), Influenza A virus (physiology), Influenza, Human (enzymology), Influenza, Human (genetics), Influenza, Human (physiopathology), Influenza, Human (virology), Phosphorylation, Quinolines (pharmacology), Unfolded Protein Response (drug effects), Viral Proteins (genetics), Viral Proteins (metabolism), Virus Replication (drug effects), eIF-2 Kinase (genetics), eIF-2 Kinase (metabolism).
- MESH :
- chemical , genetics : Viral Proteins, eIF-2 Kinase.
- chemical , metabolism : Viral Proteins, eIF-2 Kinase.
- chemical , pharmacology : Acetates, Quinolines.
- drug effects : Influenza A virus, Unfolded Protein Response, Virus Replication.
- enzymology : Influenza, Human.
- genetics : Influenza A virus, Influenza, Human.
- physiology : Influenza A virus.
- physiopathology : Influenza, Human.
- virology : Influenza, Human.
- Humans, Phosphorylation.
Abstract
Influenza A viruses generate annual epidemics and occasional pandemics of respiratory disease with important consequences for human health and the economy. Therefore, a large effort has been devoted to the development of new anti-influenza virus drugs directed to viral targets, as well as to the identification of cellular targets amenable to anti-influenza virus therapy. Here we have addressed the identification of such potential cellular targets by screening collections of drugs approved for human use. We reasoned that screening with a green fluorescent protein-based recombinant replicon system would identify cellular targets involved in virus transcription/replication and/or gene expression and hence address an early stage of virus infection. By using such a strategy, we identified Montelukast (MK) as an inhibitor of virus multiplication. MK inhibited virus gene expression but did not alter viral RNA synthesis in vitro or viral RNA accumulation in vivo The low selectivity index of MK prevented its use as an antiviral, but it was sufficient to identify a new cellular pathway suitable for anti-influenza virus intervention. By deep sequencing of RNA isolated from mock- and virus-infected human cells, treated with MK or left untreated, we showed that it stimulates the PERK-mediated unfolded protein stress response. The phosphorylation of PERK was partly inhibited in virus-infected cells but stimulated in MK-treated cells. Accordingly, pharmacological inhibition of PERK phosphorylation led to increased viral gene expression, while inhibition of PERK phosphatase reduced viral protein synthesis. These results suggest the PERK-mediated unfolded protein response as a potential cellular target to modulate influenza virus infection.
DOI: 10.1128/mBio.00085-16
PubMed: 27094326
Affiliations:
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Le document en format XML
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<front><div type="abstract" xml:lang="en">Influenza A viruses generate annual epidemics and occasional pandemics of respiratory disease with important consequences for human health and the economy. Therefore, a large effort has been devoted to the development of new anti-influenza virus drugs directed to viral targets, as well as to the identification of cellular targets amenable to anti-influenza virus therapy. Here we have addressed the identification of such potential cellular targets by screening collections of drugs approved for human use. We reasoned that screening with a green fluorescent protein-based recombinant replicon system would identify cellular targets involved in virus transcription/replication and/or gene expression and hence address an early stage of virus infection. By using such a strategy, we identified Montelukast (MK) as an inhibitor of virus multiplication. MK inhibited virus gene expression but did not alter viral RNA synthesis in vitro or viral RNA accumulation in vivo The low selectivity index of MK prevented its use as an antiviral, but it was sufficient to identify a new cellular pathway suitable for anti-influenza virus intervention. By deep sequencing of RNA isolated from mock- and virus-infected human cells, treated with MK or left untreated, we showed that it stimulates the PERK-mediated unfolded protein stress response. The phosphorylation of PERK was partly inhibited in virus-infected cells but stimulated in MK-treated cells. Accordingly, pharmacological inhibition of PERK phosphorylation led to increased viral gene expression, while inhibition of PERK phosphatase reduced viral protein synthesis. These results suggest the PERK-mediated unfolded protein response as a potential cellular target to modulate influenza virus infection.</div>
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