Evidence map›Paper›PMID 19447898›Full record

ArticleAmerican journal of respiratory and critical care medicine2009

Naturally occurring and inducible T-regulatory cells modulating immune response in allergic asthma.

Halvor S McGee, Devendra K Agrawal

Open access · greenAbstract readComparative Study
In one paragraph

Article in American journal of respiratory and critical care medicine, 2009. 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
4.7field-weighted citation impact, top 5% 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

42 citing papers in PubMed, 69 citations in OpenAlex.

  1. Article
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  12. Reduced CCR6Frontiers in immunology · 2021
    Article
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  16. Review
  17. Article
  18. Article
  19. Article
  20. Neutrophils induce proangiogenic T cells with a regulatory phenotype in pregnancy.Proceedings of the National Academy of Sciences of the United States of America · 2016
    Article
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

2 authors at 1 institution in 1 country.

Halvor S McGeeCenter for Clinical and Translational Science, Department of Biomedical Sciences, Creighton University School of Medicine, Omaha, Nebraska 68178, USA.
Devendra K Agrawal
Creighton University · US

Funding

FLT3-LIGAND, IMMUNOMODULATION AND THERAPY IN ASTHMAR01HL070885 · NHLBI · CREIGHTON UNIVERSITY · PI AGRAWAL, DEVENDRA K. · 2004 to 2008
$1.1M
NHLBI NIH HHS R01 HL070885
6 · The paper itself

Abstract

rationaleT-regulatory cells (Tregs) are potent immunomodulators in allergic asthma.

objectivesWe evaluated the functional effects of Tregs by adoptively transferring naturally occurring CD4(+)CD25(+) Tregs (NTregs) and CD4(+)CD25(-) inducible Tregs (iTregs) from lung and spleens of green fluorescent protein (GFP)-transgenic Balb/c mice into cockroach-sensitized and -challenged mice.

methodsGFP-labeled NTregs and iTregs were adoptively transferred into cockroach-sensitized and -challenged mice. Airway hyperresponsiveness (AHR) to methacholine was examined using a single-chamber, whole-body plethysmograph and invasive tracheostomy. MEASUREMENTS AND MAIN

resultsAdoptive transfer of either NTregs or iTregs from lung or spleen reversed airway inflammation and AHR to methacholine, and the effect lasted for at least 4 weeks. GFP-labeled iTregs up-regulated CD25 and forkhead-winged transcriptional factor box protein 3 and migrated to lymph node and lung. Lung CD4(+)CD25(+) T cells isolated from each group of recipient mice were inducible costimulatory molecule-high and programmed death (PD)-1-positive; however, higher expression of PD-1 was found in the spleen iTregs (S25(-)) and lung iTregs (L25(-)) groups. Higher levels of transforming growth factor-beta and IL-10 mRNA transcripts and bronchoalveolar lavage fluid IL-10 and INF-gamma levels were observed in lung CD4(+)CD25(+) cells from the L25(-) and S25(-) cell-recipient mice than from lung NTregs (L25(+)) and spleen NTregs (S25(+)) cell-recipient mice. Adoptive transfer of either cell type significantly reduced bronchoalveolar lavage fluid IL-4, IL-5, and IL-13 levels.

conclusionsTregs reverse AHR and airway inflammation; however iTregs that differentiated into IL-10-producing CD4(+) type 1 cells in the lung exert their suppressive activity likely by higher levels of transforming growth factor-beta, IL-10, IFN-gamma, and elevated levels of PD-1 compared with NTregs. Hence, PD-1 may be a conduit for reversing AHR by Tregs and a plausible target for treating asthma.

Indexed as

Adoptive TransferAnimalsAsthmaBronchoalveolar Lavage FluidCell ProliferationCytokinesDisease Models, AnimalEnzyme-Linked Immunosorbent AssayFemaleFlow CytometryImmune ToleranceImmunity, CellularLymphocyte ActivationMiceMice, Inbred BALB CT-Lymphocytes, RegulatoryCytokines

Identifiers

PMID19447898
PMCPMC2724714
OpenAlexW1980699161

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.