Evidence map›Paper›PMID 22503792›Full record

ArticleGastroenterology2012

Mutations that alter use of hepatitis C virus cell entry factors mediate escape from neutralizing antibodies.

Isabel Fofana, Samira Fafi-Kremer, Patric Carolla, Catherine Fauvelle, Muhammad Nauman Zahid, Marine Turek, Laura Heydmann, Karine Cury, Juliette Hayer, Christophe Combet and 11 more

Open access · greenAbstract read
In one paragraph

Article in Gastroenterology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed
5.2field-weighted citation impact, top 4% 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

50 citing papers in PubMed, 73 citations in OpenAlex.

  1. Trial
  2. Human monoclonal antibody MBL-HCV1 delays HCV viral rebound following liver transplantation: a randomized controlled study.American journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons · 2013
    Trial
  3. Article
  4. Article
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  7. Review
  8. Review
  9. Tight Junction Proteins and the Biology of Hepatobiliary Disease.International journal of molecular sciences · 2020
    Review
  10. Article
  11. The Role of ApoE in HCV Infection and Comorbidity.International journal of molecular sciences · 2019
    Review
  12. Review
  13. Article
  14. Article
  15. Article
  16. Review
  17. Review
  18. Article
  19. Article
  20. Limited naturally occurring escape in broadly neutralizing antibody epitopes in hepatitis C glycoprotein E2 and constrained sequence usage in acute infection.Infection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases · 2017
    Article
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

21 authors at 8 institutions in 3 countries.

Isabel Fofana *Inserm, U748, Strasbourg, France.
Samira Fafi-Kremer *Inserm, U748, Strasbourg, France.
Patric Carolla *Inserm, U748, Strasbourg, France.
Catherine FauvelleInserm, U748, Strasbourg, France.
Muhammad Nauman ZahidInserm, U748, Strasbourg, France.
Marine TurekInserm, U748, Strasbourg, France.
Laura HeydmannInserm, U748, Strasbourg, France.
Karine CuryInserm, U748, Strasbourg, France.
Juliette HayerBases Moléculaires et Structurales des Systèmes Infectieux, UMR 5086, Centre National de la Recherche Scientifique, Université de Lyon, Institut de Biologie et Chimie des Proteines, Lyon, France.
Christophe CombetBases Moléculaires et Structurales des Systèmes Infectieux, UMR 5086, Centre National de la Recherche Scientifique, Université de Lyon, Institut de Biologie et Chimie des Proteines, Lyon, France.
François-Loïc CossetUniversité de Lyon, Université Claude Bernard Lyon1, IFR 128, Inserm U758; Ecole Normale Supérieure de Lyon, 69364 Lyon, France.
Thomas PietschmannDivision of Experimental Virology, TWINCORE, Centre for Experimental and Clinical Infection Research, a joint venture between the Medical School Hannover and the Helmholtz Centre for Infection Research, Hannover, Germany.
Marie-Sophie HietThe Department of Infectious Diseases, Molecular Virology, Heidelberg University, Heidelberg, Germany.
Ralf BartenschlagerThe Department of Infectious Diseases, Molecular Virology, Heidelberg University, Heidelberg, Germany.
François HabersetzerInserm, U748, Strasbourg, France.
Michel DoffoëlInserm, U748, Strasbourg, France.
Zhen-Yong KeckDepartment of Pathology, Stanford University School of Medicine, Stanford, California.
Steven K H FoungDepartment of Pathology, Stanford University School of Medicine, Stanford, California.
Mirjam B ZeiselInserm, U748, Strasbourg, France.
Françoise Stoll-KellerInserm, U748, Strasbourg, France.
Thomas F BaumertInserm, U748, Strasbourg, France.
Inserm · FRUniversité de Strasbourg · FRHeidelberg University · DEStanford University · USStructural and Molecular Basis of Infectious Systems · FRCenter for Experimental and Clinical Infection Research · DEÉcole Normale Supérieure de Lyon · FRHôpitaux Universitaires de Strasbourg · FR

Funding

Neutralizing Antibodies to Hepatitis CR01HL079381 · NHLBI · STANFORD UNIVERSITY · PI FOUNG, STEVEN · 2004 to 2008
$2.8M
B Cell Immunity to Hepatitis C VirusR56AI081903 · NIAID · STANFORD UNIVERSITY · PI FOUNG, STEVEN · 2009 to 2009
$406k
NHLBI NIH HHS HL079381NHLBI NIH HHS R01 HL079381NIAID NIH HHS AI081903NIAID NIH HHS R56 AI081903
6 · The paper itself

Abstract

BACKGROUND &

aimsThe development of vaccines and other strategies to prevent hepatitis C virus (HCV) infection is limited by rapid viral evasion. HCV entry is the first step of infection; this process involves several viral and host factors and is targeted by host-neutralizing responses. Although the roles of host factors in HCV entry have been well characterized, their involvement in evasion of immune responses is poorly understood. We used acute infection of liver graft as a model to investigate the molecular mechanisms of viral evasion.

methodsWe studied factors that contribute to evasion of host immune responses using patient-derived antibodies, HCV pseudoparticles, and cell culture-derived HCV that express viral envelopes from patients who have undergone liver transplantation. These viruses were used to infect hepatoma cell lines that express different levels of HCV entry factors.

resultsBy using reverse genetic analyses, we identified altered use of host-cell entry factors as a mechanism by which HCV evades host immune responses. Mutations that alter use of the CD81 receptor also allowed the virus to escape neutralizing antibodies. Kinetic studies showed that these mutations affect virus-antibody interactions during postbinding steps of the HCV entry process. Functional studies with a large panel of patient-derived antibodies showed that this mechanism mediates viral escape, leading to persistent infection in general.

conclusionsWe identified a mechanism by which HCV evades host immune responses, in which use of cell entry factors evolves with escape from neutralizing antibodies. These findings advance our understanding of the pathogenesis of HCV infection and might be used to develop antiviral strategies and vaccines.

Indexed as

Virus InternalizationAntibodies, NeutralizingCell Line, TumorHepacivirusHepatitis CHumansMaleMutationTransplantsAntibodies, Neutralizing

Identifiers

PMID22503792
PMCPMC5295797
OpenAlexW2095807247

What OpenQuestion holds

Textmetadata
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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.