Evidence map›Paper›PMID 21887300›Full record

ArticlePloS one2011

A weak neutralizing antibody response to hepatitis C virus envelope glycoprotein enhances virus infection.

Keith Meyer, Arup Banerjee, Sharon E Frey, Robert B Belshe, Ranjit Ray

Open access · goldAbstract readClinical Trial, Phase I
In one paragraph

Article in PloS one, 2011. 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
1.8field-weighted citation impact, top 15% 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, 26 citations in OpenAlex.

  1. Hepatitis C virus modifiedJournal of virology · 2025
    Article
  2. Emerging and Pandemic Pathogens: Lessons Learned From a Clinical Research Network.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2025
    Review
  3. Article
  4. Article
  5. Article
  6. Mouse Models for Studying HCV Vaccines and Therapeutic Antibodies.Methods in molecular biology (Clifton, N.J.) · 2019
    Article
  7. Structural flexibility at a major conserved antibody target on hepatitis C virus E2 antigen.Proceedings of the National Academy of Sciences of the United States of America · 2016
    Article
  8. Article
  9. Immunopathogenesis of Hepatitis C Virus Infection.Gastroenterology clinics of North America · 2015
    Review
  10. Review
  11. Antigenic cooperation among intrahost HCV variants organized into a complex network of cross-immunoreactivity.Proceedings of the National Academy of Sciences of the United States of America · 2015
    Article
  12. Review
  13. Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. 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

5 authors at 1 institution in 1 country.

Keith MeyerDepartment of Internal Medicine, Saint Louis University, St. Louis, Missouri, United States of America.
Arup Banerjee
Sharon E Frey
Robert B Belshe
Ranjit Ray
Saint Louis University · US

Funding

QUALITATIVE NATURE OF ANTIBODIES TO HCV GLYCOPROTEIN SUBUNIT VACCINE IN HUMANSR01AI068769 · NIAID · SAINT LOUIS UNIVERSITY · PI RAY, RANJIT · 2006 to 2009
$1.3M
EVALUATION OF CONTROL MEASURES AGAINST DISEASES OTHER THAN AIDS-266025464N01AI025464 · NIAID · SAINT LOUIS UNIVERSITY · PI CHAPLESKI, ELIZABETH · 2003 to 2006
–
NIAID NIH HHS AI068769NIAID NIH HHS N01 AI025464NIAID NIH HHS N01-AI-25464NIAID NIH HHS R01 AI068769
6 · The paper itself

Abstract

We have completed a phase 1 safety and immunogenicity trial with hepatitis C virus (HCV) envelope glycoproteins, E1 and E2, with MF59 adjuvant as a candidate vaccine. Neutralizing activity to HCV genotype 1a was detected in approximately 25% of the vaccinee sera. In this study, we evaluated vaccinee sera from poor responders as a potential source of antibody dependent enhancement (ADE) of HCV infection. Sera with poor neutralizing activity enhanced cell culture grown HCV genotype 1a or 2a, and surrogate VSV/HCV pseudotype infection titer, in a dilution dependent manner. Surrogate pseudotypes generated from individual HCV glycoproteins suggested that antibody to the E2 glycoprotein; but not the E1 glycoprotein, was the principle target for enhancing infection. Antibody specific to FcRII expressed on the hepatic cell surface or to the Fc portion of Ig blocked enhancement of HCV infection by vaccinee sera. Together, the results from in vitro studies suggested that enhancement of viral infectivity may occur in the absence of a strong antibody response to HCV envelope glycoproteins.

Indexed as

Immunity, HumoralAntibodies, NeutralizingAntibody-Dependent EnhancementHepacivirusHepatitis CHepatitis C AntibodiesHumansPolysorbatesSqualeneViral Envelope ProteinsViral Hepatitis VaccinesAntibodies, NeutralizingE1 protein, Hepatitis C virusglycoprotein E2, Hepatitis C virusHepatitis C AntibodiesMF59 oil emulsionPolysorbatesSqualeneViral Envelope ProteinsViral Hepatitis Vaccines

Identifiers

PMID21887300
PMCPMC3161815
OpenAlexW2019240070

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.