Evidence map›Paper›PMID 22718815›Full record

ArticleJournal of virology2012

A human CD4+ T cell epitope in the influenza hemagglutinin is cross-reactive to influenza A virus subtypes and to influenza B virus.

Jenny Aurielle B Babon, John Cruz, Francis A Ennis, Liusong Yin, Masanori Terajima

Erratum issuedAbstract read
In one paragraph

Article in Journal of virology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing 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

24 citing papers in PubMed.

  1. CD4Clinical & translational immunology · 2026
    Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Review
  9. Article
  10. Article
  11. Progress on chicken T cell immunity to viruses.Cellular and molecular life sciences : CMLS · 2019
    Review
  12. Article
  13. The Quest for a Truly Universal Influenza Vaccine.Frontiers in cellular and infection microbiology · 2019
    Review
  14. Broad-Based CD4Frontiers in immunology · 2017
    Article
  15. Review
  16. Article
  17. Article
  18. T-cell-mediated cross-strain protective immunity elicited by prime-boost vaccination with a live attenuated influenza vaccine.International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases · 2014
    Article
  19. Review
  20. Review
4 · The record

Corrections and comments

  • Erratum issued
5 · Who and what money

Authors and funding

5 authors.

Jenny Aurielle B BabonDivision of Infectious Diseases and Immunology, Department of Medicine, University of Massachusetts Medical School, Worcester, Massachusetts, USA.
John Cruz
Francis A Ennis
Liusong Yin
Masanori Terajima

Funding

Technologies for Human Cellular ImmunologyU19AI057319 · NIAID · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI LIBRATY, DANIEL H. · 2003 to 2013
$34.4M
NIAID NIH HHS U19 AI-057319NIAID NIH HHS U19 AI057319
6 · The paper itself

Abstract

The hemagglutinin protein (HA) of the influenza virus family is a major antigen for protective immunity. Thus, it is a relevant target for developing vaccines. Here, we describe a human CD4(+) T cell epitope in the influenza virus HA that lies in the fusion peptide of the HA. This epitope is well conserved in all 16 subtypes of the HA protein of influenza A virus and the HA protein of influenza B virus. By stimulating peripheral blood mononuclear cells (PBMCs) from a healthy adult donor with peptides covering the entire HA protein based on the sequence of A/Japan/305/1957 (H2N2), we generated a T cell line specific to this epitope. This CD4(+) T cell line recognizes target cells infected with influenza A virus seasonal H1N1 and H3N2 strains, a reassortant H2N1 strain, the 2009 pandemic H1N1 strain, and influenza B virus in cytotoxicity assays and intracellular-cytokine-staining assays. It also lysed target cells infected with avian H5N1 virus. We screened healthy adult PBMCs for T cell responses specific to this epitope and found individuals who had ex vivo gamma interferon (IFN-γ) responses to the peptide epitope in enzyme-linked immunospot (ELISPOT) assays. Almost all donors who responded to the epitope had the HLA-DRB1*09 allele, a relatively common HLA allele. Although natural infection or standard vaccination may not induce strong T and B cell responses to this highly conserved epitope in the fusion peptide, it may be possible to develop a vaccination strategy to induce these CD4(+) T cells, which are cross-reactive to both influenza A and B viruses.

Indexed as

Antibodies, ViralCD4-Positive T-LymphocytesCells, CulturedCross ReactionsEpitopes, T-LymphocyteHemagglutinin Glycoproteins, Influenza VirusHistocompatibility Antigens Class IHumansInfluenza A virusInfluenza A Virus, H1N1 SubtypeInfluenza A Virus, H2N2 SubtypeInfluenza A Virus, H3N2 SubtypeInfluenza B virusInfluenza, HumanLeukocytes, MononuclearAntibodies, ViralEpitopes, T-LymphocyteHemagglutinin Glycoproteins, Influenza VirusHistocompatibility Antigens Class I

Identifiers

PMID22718815
PMCPMC3416118

What OpenQuestion holds

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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.