Evidence map›Paper›PMID 20971830›Full record

ArticleAmerican journal of respiratory and critical care medicine2011

IL-9 governs allergen-induced mast cell numbers in the lung and chronic remodeling of the airways.

Jennifer Kearley, Jonas S Erjefalt, Cecilia Andersson, Ebony Benjamin, Carla P Jones, Annette Robichaud, Sophie Pegorier, Yambasu Brewah, Timothy J Burwell, Leif Bjermer and 5 more

Abstract readComparative Study
In one paragraph

Article in American journal of respiratory and critical care medicine, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 113 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
113citing papers in PubMed, 1 pooled it
9.7field-weighted citation impact, top 1% 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

113 citing papers in PubMed, 1 synthesis or guideline pooled it, 210 citations in OpenAlex.

  1. Pooled it
  2. Trial
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  5. IL-9R/Arg1 pathway promotes polyamine metabolism in human airway macrophages.The Journal of allergy and clinical immunology · 2026
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  17. The World according to IL-9.Journal of immunology (Baltimore, Md. : 1950) · 2023
    Article
  18. Article
  19. Development of Adaptive Immunity and Its Role in Lung Remodeling.Advances in experimental medicine and biology · 2023
    Article
  20. Article

53 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

15 authors at 4 institutions in 4 countries.

Jennifer KearleyDepartment of Respiratory, Inflammation, and Autoimmunity, MedImmune LLC, Gaithersburg, MD 20878, USA.
Jonas S Erjefalt
Cecilia Andersson
Ebony Benjamin
Carla P Jones
Annette Robichaud
Sophie Pegorier
Yambasu Brewah
Timothy J Burwell
Leif Bjermer
Peter A Kiener
Roland Kolbeck
Clare M Lloyd
Anthony J Coyle
Alison A Humbles
Institute of Neuroimmunology of the Slovak Academy of Sciences · SKLund University · SELung Institute · USThe Quebec Population Health Research Network · CA

Funding

Medical Research Council G1000758Wellcome Trust 057704Wellcome Trust 087618
6 · The paper itself

Abstract

rationaleIL-9 is a pleiotropic cytokine that has multiple effects on structural as well as numerous hematopoietic cells, which are central to the pathogenesis of asthma.

objectivesThe contribution of IL-9 to asthma pathogenesis has thus far been unclear, due to conflicting reports in the literature. These earlier studies focused on the role of IL-9 in acute inflammatory models; here we have investigated the effects of IL-9 blockade during chronic allergic inflammation.

methodsMice were exposed to either prolonged ovalbumin or house dust mite allergen challenge to induce chronic inflammation and airway remodeling. MEASUREMENTS AND MAIN

resultsWe found that IL-9 governs allergen-induced mast cell (MC) numbers in the lung and has pronounced effects on chronic allergic inflammation. Anti-IL-9 antibody-treated mice were protected from airway remodeling with a concomitant reduction in mature MC numbers and activation, in addition to decreased expression of the profibrotic mediators transforming growth factor-β1, vascular endothelial growth factor, and fibroblast growth factor-2 in the lung. Airway remodeling was associated with impaired lung function in the peripheral airways and this was reversed by IL-9 neutralization. In human asthmatic lung tissue, we identified MCs as the main IL-9 receptor expressing population and found them to be sources of vascular endothelial growth factor and fibroblast growth factor-2.

conclusionsOur data suggest an important role for an IL-9-MC axis in the pathology associated with chronic asthma and demonstrate that an impact on this axis could lead to a reduction in chronic inflammation and improved lung function in patients with asthma.

Indexed as

AllergensAnalysis of VarianceAnimalsAsthmaBiomarkersBiopsy, NeedleBronchoalveolar Lavage FluidCytokinesDisease Models, AnimalFemaleHumansInterleukin-9LungMast CellsMiceMice, Inbred BALB CAllergensBiomarkersCytokinesInterleukin-9OvalbuminRNA, Messenger

Identifiers

PMID20971830
PMCPMC3385369
OpenAlexW2161677751

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.