Evidence map›Paper›PMID 21507963›Full record

ArticleJournal of virology2011

Small molecules targeting hepatitis C virus-encoded NS5A cause subcellular redistribution of their target: insights into compound modes of action.

Paul Targett-Adams, Emily J S Graham, Jenny Middleton, Amy Palmer, Stephen M Shaw, Helen Lavender, Philip Brain, Thien Duc Tran, Lyn H Jones, Florian Wakenhut and 4 more

Abstract read
In one paragraph

Article in Journal of virology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 57 papers.

0numbers the graph read from it
0cells of the map it votes in
57citing papers in PubMed
–field-weighted citation impact
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

57 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Eltrombopag is a potential target for drug intervention in SARS-CoV-2 spike protein.Infection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases · 2020
    Article
  6. Effect of P-body component Mov10 on HCV virus production and infectivity.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2020
    Article
  7. Review
  8. Advanced Hepatitis C Virus Replication PDE Models within a Realistic Intracellular Geometric Environment.International journal of environmental research and public health · 2019
    Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
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  17. Article
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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

14 authors.

Paul Targett-AdamsPfizer Global Research & Development, Sandwich, Kent CT13 9NJ, United Kingdom. paul.targett-adams@pfizer.com
Emily J S Graham
Jenny Middleton
Amy Palmer
Stephen M Shaw
Helen Lavender
Philip Brain
Thien Duc Tran
Lyn H Jones
Florian Wakenhut
Blanda Stammen
David Pryde
Chris Pickford
Mike Westby

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The current standard of care for hepatitis C virus (HCV)-infected patients consists of lengthy treatment with interferon and ribavirin. To increase the effectiveness of HCV therapy, future regimens will incorporate multiple direct-acting antiviral (DAA) drugs. Recently, the HCV-encoded NS5A protein has emerged as a promising DAA target. Compounds targeting NS5A exhibit remarkable potency in vitro and demonstrate early clinical promise, suggesting that NS5A inhibitors could feature in future DAA combination therapies. Since the mechanisms through which these molecules operate are unknown, we have used NS5A inhibitors as tools to investigate their modes of action. Analysis of replicon-containing cells revealed dramatic phenotypic alterations in NS5A localization following treatment with NS5A inhibitors; NS5A was redistributed from the endoplasmic reticulum to lipid droplets. The NS5A relocalization did not occur in cells treated with other classes of HCV inhibitors, and NS5A-targeting molecules did not cause similar alterations in the localization of other HCV-encoded proteins. Time course analysis of the redistribution of NS5A revealed that the transfer of protein to lipid droplets was concomitant with the onset of inhibition, as judged by the kinetic profiles for these compounds. Furthermore, analysis of the kinetic profile of inhibition for a panel of test molecules permitted the separation of compounds into different kinetic classes based on their modes of action. Results from this approach suggested that NS5A inhibitors perturbed the function of new replication complexes, rather than acting on preformed complexes. Taken together, our data reveal novel biological consequences of NS5A inhibition, which may help enable the development of future assay platforms for the identification of new and/or different NS5A inhibitors.

Indexed as

Antiviral AgentsCarbamatesCell Line, TumorEndoplasmic ReticulumHepacivirusHepatocytesHumansImidazolesInhibitory Concentration 50LipidsMicroscopy, ConfocalModels, MolecularPyrrolidinesRepliconRNA-Dependent RNA PolymeraseSmall Molecule LibrariesAntiviral AgentsCarbamatesdaclatasvirImidazolesLipidsNS-5 protein, hepatitis C virusPyrrolidinesRNA-Dependent RNA PolymeraseSmall Molecule LibrariesValineViral Nonstructural Proteins

Identifiers

PMID21507963
PMCPMC3126509

What OpenQuestion holds

Textmetadata
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.