Evidence map›Paper›PMID 32539931›Full record

ArticleeLife2020

Hepatitis C virus exploits cyclophilin A to evade PKR.

Che C Colpitts, Sophie Ridewood, Bethany Schneiderman, Justin Warne, Keisuke Tabata, Caitlin F Ng, Ralf Bartenschlager, David L Selwood, Greg J Towers

Open access · goldAbstract read
In one paragraph

Article in eLife, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
2.3field-weighted citation impact, top 11% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

24 citing papers in PubMed, 37 citations in OpenAlex.

  1. Article
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  11. Preparing for the next viral threat with broad-spectrum antivirals.The Journal of clinical investigation · 2023
    Review
  12. Article
  13. Article
  14. Article
  15. Non-Immunosuppressive Cyclophilin Inhibitors.Angewandte Chemie (International ed. in English) · 2022
    Review
  16. Viral evasion of PKR restriction by reprogramming cellular stress granules.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  17. Review
  18. Review
  19. Review
  20. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 6 institutions in 3 countries.

Che C ColpittsDepartment of Biomedical and Molecular Sciences, Queen's University, Kingston, Canada.ORCID 0000-0003-2474-1834
Sophie RidewoodDivision of Infection and Immunity, University College London, London, United Kingdom.
Bethany SchneidermanDivision of Infection and Immunity, University College London, London, United Kingdom.
Justin WarneWolfson Institute for Biomedical Research, UCL, London, United Kingdom.
Keisuke TabataDepartment of Infectious Diseases, Molecular Virology, Heidelberg University, Heidelberg, Germany.
Caitlin F NgDivision of Infection and Immunity, University College London, London, United Kingdom.
Ralf BartenschlagerDepartment of Infectious Diseases, Molecular Virology, Heidelberg University, Heidelberg, Germany.
David L SelwoodDepartment of Medicine, Imperial College London, London, United Kingdom.
Greg J TowersDivision of Infection and Immunity, University College London, London, United Kingdom.ORCID 0000-0002-7707-0264
University College London · GBGerman Cancer Research Center · DEHeidelberg University · DEImperial College London · GBQueen's University · CAWolfson Foundation · GB

Funding

Medical Research Council G0801172Medical Research Council MC_PC_12024Medical Research Council MR/S023380/1Wellcome TrustWellcome Trust 108183
6 · The paper itself

Abstract

Counteracting innate immunity is essential for successful viral replication. Host cyclophilins (Cyps) have been implicated in viral evasion of host antiviral responses, although the mechanisms are still unclear. Here, we show that hepatitis C virus (HCV) co-opts the host protein CypA to aid evasion of antiviral responses dependent on the effector protein kinase R (PKR). Pharmacological inhibition of CypA rescues PKR from antagonism by HCV NS5A, leading to activation of an interferon regulatory factor-1 (IRF1)-driven cell intrinsic antiviral program that inhibits viral replication. These findings further the understanding of the complexity of Cyp-virus interactions, provide mechanistic insight into the remarkably broad antiviral spectrum of Cyp inhibitors, and uncover novel aspects of PKR activity and regulation. Collectively, our study identifies a novel antiviral mechanism that harnesses cellular antiviral immunity to suppress viral replication.

Indexed as

Virus ReplicationCell Line, TumorCyclophilin AeIF-2 KinaseHepacivirusHumansInterferon Regulatory Factor-1RNA-Dependent RNA PolymeraseViral Nonstructural ProteinsCyclophilin AEIF2AK2 protein, humaneIF-2 KinaseInterferon Regulatory Factor-1IRF1 protein, humanNS-5 protein, hepatitis C virusRNA-Dependent RNA PolymeraseViral Nonstructural Proteinscyclophilin Ahepatitis C virusimmunologyinfectious diseaseinflammationinnate antiviral immunitymicrobiologyprotein kinase Rviral evasionvirusvirus-host interactions

Identifiers

PMID32539931
PMCPMC7297535
OpenAlexW3035130407

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.