Evidence map›Paper›PMID 22502799›Full record

ArticleThe Journal of allergy and clinical immunology2012

Mast cell TNF receptors regulate responses to Mycoplasma pneumoniae in surfactant protein A (SP-A)-/- mice.

Bethany J Hsia, Julie G Ledford, Erin N Potts-Kant, Vinayak S Nikam, Njira L Lugogo, W Michael Foster, Monica Kraft, Soman N Abraham, Jo Rae Wright

RetractedOpen access · greenAbstract read
In one paragraph

Article in The Journal of allergy and clinical immunology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It has been retracted, and should not be counted. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
0.5field-weighted citation impact, top 36% 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

13 citing papers in PubMed, 22 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. The Immune Modulatory Role of Surfactants inJournal of inflammation research · 2025
    Review
  5. CC16 Deficiency in the Context of Early-LifeInfection and immunity · 2022
    Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Hyperoxia treatment of TREK-1/TREK-2/TRAAK-deficient mice is associated with a reduction in surfactant proteins.American journal of physiology. Lung cellular and molecular physiology · 2017
    Article
  12. Article
  13. Key mediators in the immunopathogenesis of allergic asthma.International immunopharmacology · 2014
    Review
4 · The record

Corrections and comments

  • Correction · 2015-11-20Error by Third Party · Error in Data · Falsification/Fabrication of Data · Investigation by Company/Institution · Legal Reasons and/or Threats · Misconduct - Official Investigation(s) and/or Finding(s) · Misconduct by Author · Results Not Reproducible · Unreliable Data · Unreliable Results and/or Conclusions · · EN Potts-Kant named for misconduct; EN Potts-Kant aka EN Potts;
  • Commented on by
5 · Who and what money

Authors and funding

9 authors at 2 institutions in 1 country.

Bethany J HsiaDepartment of Cell Biology, Duke University Medical Center, Durham, NC 27710, USA.
Julie G Ledford
Erin N Potts-Kant
Vinayak S Nikam
Njira L Lugogo
W Michael Foster
Monica Kraft
Soman N Abraham
Jo Rae Wright
Duke Medical Center · USDuke University Hospital · US

Funding

Surfactant Protein-A Regulation of Innate Immunityin AsthmaP01AI081672 · NIAID · DUKE UNIVERSITY · PI SUNDY, JOHN S · 2009 to 2013
$7.4M
The role of SP-A in Mp-induced exacerbations during allergic airway disease.K99HL111151 · NHLBI · DUKE UNIVERSITY · PI LEDFORD, JULIE GUNNELLS · 2012 to 2013
$201k
Role of Surfactant in Mycoplasma Pulmonary Infection and ExacerbationF32HL091642 · NHLBI · DUKE UNIVERSITY · PI LEDFORD, JULIE GUNNELLS · 2008 to 2010
$149k
NHLBI NIH HHS F32 HL091642NHLBI NIH HHS F32-HL091642NHLBI NIH HHS K99 HL111151NIAID NIH HHS P01 AI081672NIAID NIH HHS P01-AI81672
6 · The paper itself

Abstract

backgroundMycoplasma pneumoniae (Mp) frequently colonizes the airways of patients with chronic asthma and likely contributes to asthma exacerbations. We previously reported that mice lacking surfactant protein A (SP-A) have increased airway hyperresponsiveness (AHR) during M pneumoniae infection versus wild-type mice mediated by TNF-α. Mast cells (MCs) have been implicated in AHR in asthma models and produce and respond to TNF-α.

objectiveDetermine the contribution of MC/TNF interactions to AHR in airways lacking functional SP-A during Mp infection.

methodsBronchoalveolar lavage fluid was collected from healthy and asthmatic subjects to examine TNF-α levels and M pneumoniae positivity. To determine how SP-A interactions with MCs regulate airway homeostasis, we generated mice lacking both SP-A and MCs (SP-A(-/-)Kit(W-sh/W-sh)) and infected them with M pneumoniae.

resultsOur findings indicate that high TNF-α levels correlate with M pneumoniae positivity in human asthmatic patients and that human SP-A inhibits M pneumoniae-stimulated transcription and release of TNF-α by MCs, implicating a protective role for SP-A. MC numbers increase in M pneumoniae-infected lungs, and airway reactivity is dramatically attenuated when MCs are absent. Using SP-A(-/-)Kit(W-sh/W-sh) mice engrafted with TNF-α(-/-) or TNF receptor (TNF-R)(-/-) MCs, we found that TNF-α activation of MCs through the TNF-R, but not MC-derived TNF-α, leads to augmented AHR during M pneumoniae infection when SP-A is absent. Additionally, M pneumoniae-infected SP-A(-/-)Kit(W-sh/W-sh) mice engrafted with TNF-α(-/-) or TNF-R(-/-) MCs have decreased mucus production compared with that seen in mice engrafted with wild-type MCs, whereas burden was unaffected.

conclusionOur data highlight a previously unappreciated but vital role for MCs as secondary responders to TNF-α during the host response to pathogen infection.

Indexed as

AnimalsAsthmaBronchial HyperreactivityBronchoalveolar Lavage FluidCells, CulturedHumansLungMast CellsMiceMice, Inbred C57BLMice, KnockoutMycoplasma pneumoniaePneumonia, MycoplasmaPulmonary Surfactant-Associated Protein AReceptors, Tumor Necrosis FactorTumor Necrosis Factor-alphaPulmonary Surfactant-Associated Protein AReceptors, Tumor Necrosis FactorTumor Necrosis Factor-alpha

Identifiers

PMID22502799
PMCPMC3578696
OpenAlexW1995934333

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.