Evidence map›Paper›PMID 25378637›Full record

ArticleThe Journal of infectious diseases2015

Effect of influenza A(H5N1) vaccine prepandemic priming on CD4+ T-cell responses.

Jennifer L Nayak, Katherine A Richards, Hongmei Yang, John J Treanor, Andrea J Sant

Abstract read
In one paragraph

Article in The Journal of infectious diseases, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.

0numbers the graph read from it
0cells of the map it votes in
42citing 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

42 citing papers in PubMed.

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  14. Robust hepatitis B vaccine-reactive T cell responses in failed humoral immunity.Molecular therapy. Methods & clinical development · 2021
    Article
  15. Immunity to Influenza Infection in Humans.Cold Spring Harbor perspectives in medicine · 2021
    Review
  16. Article
  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

5 authors.

Jennifer L NayakDivision of Infectious Diseases, Department of Pediatrics.
Katherine A RichardsDavid H. Smith Center for Vaccine Biology and Immunology, Department of Microbiology and Immunology.
Hongmei YangDepartment of Biostatistics and Computational Biology.
John J TreanorDivision of Infectious Diseases, Department of Medicine, University of Rochester Medical Center, New York.
Andrea J SantDavid H. Smith Center for Vaccine Biology and Immunology, Department of Microbiology and Immunology.

Funding

Translational Molecular Pediatric ResearchK12HD068373 · NICHD · UNIVERSITY OF ROCHESTER · PI SCHOR, NINA F · 2011 to 2015
$2.0M
Selective priming of HA-specific CD4 T cells in influenza heterosubtypic immunityK08AI106954 · NIAID · UNIVERSITY OF ROCHESTER · PI NAYAK, JENNIFER L. · 2013 to 2016
$677k
NIAID NIH HHS 1K08AI106954NIAID NIH HHS HHSN266200700008CNIAID NIH HHS K08 AI106954NICHD NIH HHS 1K12HD068373-01NICHD NIH HHS K12 HD068373
6 · The paper itself

Abstract

introductionPrevious priming with avian influenza vaccines results in more rapid and more robust neutralizing antibody responses upon revaccination, but the role CD4(+) T cells play in this process is not currently known.

methodsHuman subjects previously enrolled in trials of inactivated influenza A(H5N1) vaccines and naive subjects were immunized with an inactivated subunit influenza A/Indonesia/5/05(H5N1) vaccine. Neutralizing antibody responses were measured by a microneutralization assay, and hemagglutinin (HA)-specific and nucleoprotein (NP)-specific CD4(+) T-cell responses were quantified using interferon γ enzyme-linked immunosorbent spot assays.

resultsWhile vaccination induced barely detectable CD4(+) T-cell responses specific for HA in the previously unprimed group, primed subjects had readily detectable HA-specific memory CD4(+) T cells at baseline and mounted a more robust response to HA-specific epitopes after vaccination. There were no differences between groups when conserved NP-specific CD4(+) T-cell responses were examined. Interestingly, neutralizing antibody responses following revaccination were significantly higher in individuals who mounted a CD4(+) T-cell response to the H5 HA protein, a correlation not observed for NP-specific responses.

conclusionsThese findings suggest that prepandemic vaccination results in an enriched population of HA-specific CD4(+) T cells that are recruited on rechallenge with a drifted vaccine variant and contribute to more robust and more rapid neutralizing antibody responses.

Indexed as

CD4-Positive T-LymphocytesFemaleHumansImmunization ScheduleInfluenza A Virus, H5N1 SubtypeInfluenza, HumanInfluenza VaccinesMaleMiddle AgedPandemicsInfluenza Vaccinesavian influenzaCD4+ T cellsH5N1influenzainfluenza vaccinepandemic influenza

Identifiers

PMID25378637
PMCPMC4425838

What OpenQuestion holds

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Registered trials

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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.