Evidence map›Paper›PMID 20345998›Full record

ArticleClinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology2010

Mast cells protect against airway Mycoplasma pneumoniae under allergic conditions.

N M Michels, H W Chu, S C LaFasto, S R Case, M N Minor, R J Martin

Abstract read
In one paragraph

Article in Clinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing 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

7 citing papers in PubMed, 8 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Mast Cells in Lung Homeostasis: Beyond Type I Hypersensitivity.Current respiratory medicine reviews · 2014
    Article
  5. Article
  6. Mycoplasma pneumoniae CARDS toxin induces pulmonary eosinophilic and lymphocytic inflammation.American journal of respiratory cell and molecular biology · 2012
    Article
  7. Review
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.

N M MichelsNational Jewish Health, 1400 Jackson Street, Denver, CO 80206, USA.
H W Chu
S C LaFasto
S R Case
M N Minor
R J Martin
National Jewish Health · USUniversity of Colorado Denver · US

Funding

The Effect of Mycoplasma on Chronic AsthmaP01HL073907 · NHLBI · NATIONAL JEWISH HEALTH · PI CHU, HONG W · 2004 to 2008
$10.3M
NHLBI NIH HHS P01HL0703907NHLBI NIH HHS P01 HL073907
6 · The paper itself

Abstract

backgroundInfection with Mycoplasma pneumoniae (Mp) in asthma can occur both acutely and chronically with an associated Th2 inflammatory response and/or increased numbers of bronchial mast cells. Mast cells have previously been shown to promote mycoplasma clearance in mice; however, it is unknown whether mast cells would aid Mp clearance under allergic conditions.

objectiveOur aim was to determine the impact of allergic inflammation on mast cell-mediated lung Mp clearance. Furthermore, as we have previously demonstrated an essential role for IL-6 in lung Mp clearance we also investigated the role of mast cell-derived IL-6.

methodsMast cell-deficient (WBB6F1/J-Kit(W)/Kit(W-v)) mice were challenged with ovalbumin to induce airway inflammation before Mp infection. The role of mast cell-derived IL-6 in bacterial clearance was further investigated by reconstitution of mast cell-deficient mice with IL-6(-/-) mast cells.

resultsAllergic mast cell-deficient mice exhibited increased lung Mp burden compared with control littermates. Intravenous adoptive transfer of wild-type and IL-6(-/-) mast cells significantly improved Mp clearance in mast cell-deficient mice. Acutely after Mp infection, allergen-challenged mast cell-deficient mice had increased levels of the pro-inflammatory cytokines IL-6 and TNF-alpha in the bronchoalveolar lavage (BAL) fluid. The total number of neutrophils was also increased in mast cell-deficient mice.

conclusionsOur results establish that mast cells aid host defense against Mp in an allergic setting and that while IL-6 is necessary for lung Mp clearance, mast cell-derived IL-6 is not required.

Indexed as

Immunity, InnateMycoplasma pneumoniaeAnimalsAsthmaHost-Pathogen InteractionsHypersensitivityInterleukin-6LungMaleMast CellsMiceMice, Inbred C57BLMice, KnockoutPneumonia, MycoplasmaInterleukin-6

Identifiers

PMID20345998
PMCPMC2895012
OpenAlexW1539277968

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.