Evidence map›Paper›PMID 20061406›Full record

ArticleJournal of immunology (Baltimore, Md. : 1950)2010

Physiological numbers of CD4+ T cells generate weak recall responses following influenza virus challenge.

Paul G Thomas, Scott A Brown, Melissa Y Morris, Wen Yue, Jenny So, Cory Reynolds, Richard J Webby, Peter C Doherty

Open access · bronzeAbstract read
In one paragraph

Article in Journal of immunology (Baltimore, Md. : 1950), 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
0.3field-weighted citation impact, top 40% 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

20 citing papers in PubMed, 27 citations in OpenAlex.

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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

8 authors at 2 institutions in 2 countries.

Paul G ThomasDepartment of Immunology, St. Jude Children's Research Hospital, Memphis, TN 38105, USA. Paul.Thomas@stjude.org
Scott A Brown
Melissa Y Morris
Wen Yue
Jenny So
Cory Reynolds
Richard J Webby
Peter C Doherty
St. Jude Children's Research Hospital · USThe University of Melbourne · AU

Funding

Protective Cell-Mediated Immunity Against Lethal H5N1 Influenza A VirusesR01AI070251 · NIAID · ST. JUDE CHILDREN'S RESEARCH HOSPITAL · PI DOHERTY, PETER C · 2006 to 2010
$2.0M
Antigen-specific CD4+ T cell responses to influenzaF32AI065097 · NIAID · ST. JUDE CHILDREN'S RESEARCH HOSPITAL · PI THOMAS, PAUL GLYNDWR · 2005 to 2007
$143k
INFLUENZA PANDEMIC PREPAREDNESS IN ASIA-N01AI095357 · NIAID · ST. JUDE CHILDREN'S RESEARCH HOSPITAL · 1999 to 2003
$0k
NIAID NIH HHS AI065097NIAID NIH HHS AI70251NIAID NIH HHS F32 AI065097NIAID NIH HHS N01 AI095357NIAID NIH HHS R01 AI070251
6 · The paper itself

Abstract

Naive and recall CD4(+) T cell responses were probed with recombinant influenza A viruses incorporating the OVA OT-II peptide. The extent of OT-II-specific CD4(+) T cell expansion was greater following primary exposure, with secondary challenge achieving no significant increase in numbers, despite higher precursor frequencies. Adoptive transfer experiments with OT-II TCR-transgenic T cells established that the predominant memory set is CD62L(hi), whereas the CD62L(lo) precursors make little contribution to the recall response. Unlike the situation described by other investigators, in which the transfer of very large numbers of in vitro-activated CD4 effectors can modify the disease process, providing CD62L(hi) or CD62L(lo) OT-II-specific T cells at physiological levels neither enhanced virus clearance nor altered clinical progression. Some confounding effects of the transgenic model were observed, with decreasing primary expansion efficiency correlating with greater numbers of transferred cells. This was associated with increased levels of mRNA for the proapoptotic molecule Bim in cells recovered following high-dose transfer. However, even with very low numbers of transferred cells, memory T cells did not expand significantly following secondary challenge. A similar result was recorded in mice primed and boosted to respond to an endogenous IA(b)-restricted epitope derived from the influenza virus hemagglutinin glycoprotein. Depletion of CD8(+) T cells during secondary challenge generated an increased accumulation of OT-II-specific T cells but only at the site of infection. Taken together, significant expansion was not a feature of these secondary influenza-specific CD4 T cell responses and the recall of memory did not enhance recovery.

Indexed as

Immunologic MemoryAdoptive TransferAmino Acid SequenceAnimalsCD4 Lymphocyte CountCD4-Positive T-LymphocytesCell LineCell ProliferationCoculture TechniquesDogsFemaleHumansInfluenza A Virus, H1N1 SubtypeInfluenza A Virus, H3N2 SubtypeMiceMice, Inbred C57BLReceptors, Antigen, T-Cell

Identifiers

PMID20061406
PMCPMC2826830
OpenAlexW1585963843

What OpenQuestion holds

Textmetadata
LicenceTDM
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.