Evidence map›Paper›PMID 20107020›Full record

ArticleThe Journal of general virology2010

Virological footprint of CD4+ T-cell responses during chronic hepatitis C virus infection.

Vicki M Fleming, Gillian Harcourt, Eleanor Barnes, Paul Klenerman

Open access · hybridAbstract read
In one paragraph

Article in The Journal of general virology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
2.1field-weighted citation impact, top 13% 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

18 citing papers in PubMed, 30 citations in OpenAlex.

  1. Review
  2. Review
  3. Review
  4. Adaptive Immune Response against Hepatitis C Virus.International journal of molecular sciences · 2020
    Review
  5. Review
  6. Article
  7. Review
  8. Review
  9. Review
  10. CD4Future virology · 2013
    Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Update on hepatitis C virus-specific immunity.Current opinion in HIV and AIDS · 2011
    Review
  17. Article
  18. Adaptive immunity to the hepatitis C virus.Advances in virus research · 2010
    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

4 authors at 2 institutions in 1 country.

Vicki M FlemingPeter Medawar Building for Pathogen Research, Nuffield Department of Clinical Medicine, University of Oxford, South Parks Road, Oxford, UK. vicki.fleming@ndm.ox.ac.uk
Gillian Harcourt
Eleanor Barnes
Paul Klenerman
University of Oxford · GBMedawar Building for Pathogen Research · GB

Funding

Medical Research Council G108/601Wellcome Trust
6 · The paper itself

Abstract

Human and animal model evidence suggests that CD4+ T cells play a critical role in the control of chronic hepatitis C virus (HCV) infection. However, despite their importance, the mechanism behind the failure of such populations in chronic disease is not understood and the contribution of viral mutation is not known. To address this, this study defined the specificity and virological footprint of CD4+ T cells in chronic infection. CD8+ T-cell-depleted peripheral blood mononuclear cells from 61 HCV genotype 1-infected patients were analysed against a panel of peptides covering the HCV genotype 1 core--a region where CD4+ T-cell responses may be reproducibly obtained. In parallel, the core region and E2 protein were sequenced. Gamma interferon-secreting CD4+ T-cell responses directed against multiple epitopes were detected in 53% of individuals, targeting between one and four peptides in the HCV core. Viral sequence evaluation revealed that these CD4+ T-cell responses were associated with mutants in 2/21 individuals. In these two cases, the circulating sequence variant was poorly recognized by host CD4+ T cells. Bioinformatics analyses revealed no overall evidence of selection in the target epitopes and no differences between the groups with and without detectable CD4+ T-cell responses. It was concluded that sustained core peptide-specific CD4+ T-cell responses may be reproducibly measured during chronic HCV infection and that immune escape may occur in specific instances. However, overall the virological impact of such responses is limited and other causes for CD4+ T-cell failure in HCV must be sought.

Indexed as

AdultAgedAnimalsCD4-Positive T-LymphocytesEpitopesHepacivirusHepatitis C, ChronicHumansInterferon-gammaLymphocyte DepletionMaleMiddle AgedMolecular Sequence DataRNA, ViralSequence Analysis, DNAViral Core ProteinsEpitopesglycoprotein E2, Hepatitis C virusInterferon-gammanucleocapsid protein, Hepatitis C virusRNA, ViralViral Core ProteinsViral Envelope Proteins

Identifiers

PMID20107020
PMCPMC3052717
OpenAlexW2105898459

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.