Evidence map›Paper›PMID 23393567›Full record

ArticlePloS one2013

TLR-2 activation induces regulatory T cells and long-term suppression of asthma manifestations in mice.

Martijn C Nawijn, Alexandre C Motta, Renée Gras, Soheila Shirinbak, Hadi Maazi, Antoon J M van Oosterhout

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
3.3field-weighted citation impact, top 8% 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

32 citing papers in PubMed, 51 citations in OpenAlex.

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  8. Review
  9. The Protective Effects of Helicobacter pylori Infection on Allergic Asthma.International archives of allergy and immunology · 2021
    Review
  10. Journal of asthma and allergy · 2021
    Article
  11. Rapid Expansion of Virus-Specific CD4International journal of molecular sciences · 2020
    Article
  12. Article
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  14. 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

6 authors at 2 institutions in 1 country.

Martijn C NawijnLaboratory of Allergology and Pulmonary Diseases, Department of Pathology and Medical Biology, University of Groningen, GRIAC Research Institute, University Medical Centre Groningen-UMCG, Groningen, The Netherlands. m.c.nawijn@umcg.nl
Alexandre C Motta
Renée Gras
Soheila Shirinbak
Hadi Maazi
Antoon J M van Oosterhout
University Medical Center Groningen · NLUniversity of Groningen · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Asthma is a chronic inflammatory disease of the airways characterized by variable airway obstruction and airway hyperresponsiveness (AHR). The T regulatory (Treg) cell subset is critically important for the regulation of immune responses. Adoptive transfer of Treg cells has been shown to be sufficient for the suppression of airway inflammation in experimental allergic asthma. Intervention strategies aimed at expanding the Treg cell population locally in the airways of sensitized individuals are therefore of high interest as a potential therapeutic treatment for allergic airway disease. Here, we aim to test whether long-term suppression of asthma manifestations can be achieved by locally expanding the Treg cell subset via intranasal administration of a TLR-2 agonist. To model therapeutic intervention aimed at expanding the endogenous Treg population in a sensitized host, we challenged OVA-sensitized mice by OVA inhalation with concomitant intranasal instillation of the TLR-2 agonist Pam3Cys, followed by an additional series of OVA challenges. Pam3Cys treatment induced an acute but transient aggravation of asthma manifestations, followed by a reduction or loss of AHR to methacholine, depending on the time between Pam3Cys treatment and OVA challenges. In addition, Pam3Cys-treatment induced significant reductions of eosinophils and increased numbers of Treg cells in the lung infiltrates. Our data show that, despite having adverse acute effects, TLR2 agonist treatment as a therapeutic intervention induces an expansion of the Treg cell population in the lungs and results in long-term protection against manifestation of allergic asthma upon subsequent allergen provocation. Our data indicate that local expansion of Tregs in allergic airway disease is an interesting therapeutic approach that warrants further investigation.

Indexed as

AnimalsAsthmaBronchoalveolar Lavage FluidEnzyme-Linked Immunosorbent AssayFlow CytometryImmunoglobulin ELipoproteinsMaleMethacholine ChlorideMiceMice, Inbred BALB CT-Lymphocytes, RegulatoryToll-Like Receptor 2Immunoglobulin ELipoproteinsMethacholine ChlorideN-palmitoyl-S-(2,3-bis(palmitoyloxy)propyl)cysteinyl-seryl-lysyl-lysyl-lysyl-lysineTlr2 protein, mouseToll-Like Receptor 2

Identifiers

PMID23393567
PMCPMC3564817
OpenAlexW2003543730

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.