Evidence map›Paper›PMID 17507491›Full record

ArticleJournal of virology2007

Direct ex vivo analyses of HLA-DR1 transgenic mice reveal an exceptionally broad pattern of immunodominance in the primary HLA-DR1-restricted CD4 T-cell response to influenza virus hemagglutinin.

Katherine A Richards, Francisco A Chaves, Frederick R Krafcik, David J Topham, Christopher A Lazarski, Andrea J Sant

Open access · greenAbstract read
In one paragraph

Article in Journal of virology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 53 papers.

0numbers the graph read from it
0cells of the map it votes in
53citing papers in PubMed
3.9field-weighted citation impact, top 6% 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

53 citing papers in PubMed, 66 citations in OpenAlex.

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  10. Protein Vaccination Directs the CD4Journal of virology · 2019
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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

6 authors at 1 institution in 1 country.

Katherine A RichardsDavid H. Smith Center for Vaccine Biology and Immunology, Aab Institute, Department of Microbiology and Immunology, University of Rochester, Rochester, NY 14642, USA.
Francisco A Chaves
Frederick R Krafcik
David J Topham
Christopher A Lazarski
Andrea J Sant
University of Rochester · US

Funding

Viral Vector CoreU19AI062627 · NIAID · VERSITI WISCONSIN, INC. · PI ECKELS, DAVID D · 2004 to 2008
$11.6M
Immunodominance in CD4 T Cell ResponsesR01AI051542 · NIAID · UNIVERSITY OF ROCHESTER · PI SANT, ANDREA JANINE · 2002 to 2012
$3.6M
NIAID NIH HHS 5U19 AI062627NIAID NIH HHS R01 AI051542NIAID NIH HHS R01 AI51542NIAID NIH HHS U19 AI062627PHS HHS R21 PA-04-119
6 · The paper itself

Abstract

The recent threat of an avian influenza pandemic has generated significant interest in enhancing our understanding of the events that dictate protective immunity to influenza and in generating vaccines that can induce heterosubtypic immunity. Although antigen-specific CD4 T cells are known to play a key role in protective immunity to influenza through the provision of help to B cells and CD8 T cells, little is known about the specificity and diversity of CD4 T cells elicited after infection, particularly those elicited in humans. In this study, we used HLA-DR transgenic mice to directly and comprehensively identify the specificities of hemagglutinin (HA)-specific CD4 T cells restricted to a human class II molecule that were elicited following intranasal infection with a strain of influenza virus that has been endemic in U.S. human populations for the last decade. Our results reveal a surprising degree of diversity among influenza virus-specific CD4 T cells. As many as 30 different peptides, spanning the entire HA protein, were recognized by CD4 T cells, including epitopes genetically conserved among H1, H2, and H5 influenza A viruses. We also compared three widely used major histocompatibility class II algorithms to predict HLA-DR binding peptides and found these as yet inadequate for identifying influenza virus-derived epitopes. The results of these studies offer key insights into the spectrum of peptides recognized by HLA-DR-restricted CD4 T cells that may be the focus of immune responses to infection or to experimental or clinical vaccines in humans.

Indexed as

Amino Acid SequenceAnimalsCD4-Positive T-LymphocytesCell LineEnzyme-Linked Immunosorbent AssayHemagglutinins, ViralHLA-DR1 AntigenMiceMice, TransgenicMolecular Sequence DataOrthomyxoviridaeSequence Homology, Amino AcidHemagglutinins, ViralHLA-DR1 Antigen

Identifiers

PMID17507491
PMCPMC1933370
OpenAlexW2130125702

What OpenQuestion holds

Textmetadata
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.