Evidence map›Paper›PMID 22534535›Full record

ArticleThe Journal of allergy and clinical immunology2012

Glandular mast cells with distinct phenotype are highly elevated in chronic rhinosinusitis with nasal polyps.

Tetsuji Takabayashi, Atsushi Kato, Anju T Peters, Lydia A Suh, Roderick Carter, James Norton, Leslie C Grammer, Bruce K Tan, Rakesh K Chandra, David B Conley and 3 more

Open access · bronzeAbstract 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. Cited by 86 papers.

0numbers the graph read from it
0cells of the map it votes in
86citing papers in PubMed
4.8field-weighted citation impact, top 4% 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

86 citing papers in PubMed, 153 citations in OpenAlex.

  1. Trial
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  5. Platelets engage mast cells in a bilateral IL-33-driven feed-forward loop.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  6. Review
  7. Review
  8. Clinical and mechanistic advancements in aspirin exacerbated respiratory disease.The Journal of allergy and clinical immunology · 2025
    Review
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  15. Article
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  19. Article
  20. Mast Cells in Aspirin-Exacerbated Respiratory Disease.Current allergy and asthma reports · 2024
    Review

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

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

13 authors at 2 institutions in 2 countries.

Tetsuji TakabayashiDivision of Allergy and Immunology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA.
Atsushi Kato
Anju T Peters
Lydia A Suh
Roderick Carter
James Norton
Leslie C Grammer
Bruce K Tan
Rakesh K Chandra
David B Conley
Robert C Kern
Shigeharu Fujieda
Robert P Schleimer
Northwestern University · USUniversity of Fukui · JP

Funding

Glucocorticosteroid Action In Inflammatory DiseaseR37HL068546 · NHLBI · NORTHWESTERN UNIVERSITY AT CHICAGO · PI SCHLEIMER, ROBERT P · 2009 to 2018
$3.5M
Role of Epithelium in Immunity, Inflammation and DiseaseR01HL078860 · NHLBI · NORTHWESTERN UNIVERSITY AT CHICAGO · PI SCHLEIMER, ROBERT P · 2006 to 2013
$3.0M
Epithelial BAFF and APRIL in Airway Inflammation, Immunity and DiseaseR01AI072570 · NIAID · NORTHWESTERN UNIVERSITY AT CHICAGO · PI SCHLEIMER, ROBERT P · 2007 to 2011
$2.3M
NHLBI NIH HHS R01 HL078860NHLBI NIH HHS R01HL078860NHLBI NIH HHS R37 HL068546NHLBI NIH HHS R37HL068546-27NIAID NIH HHS R01 AI072570NIAID NIH HHS R01AI072570
6 · The paper itself

Abstract

backgroundAlthough chronic rhinosinusitis (CRS) with nasal polyps (CRSwNP) is characterized by T(H)2 inflammation, the role of mast cells is poorly understood.

objectiveThe objective of this study was to investigate the presence, localization, and phenotype of mast cells in patients with CRS.

methodsWe collected nasal tissue and nasal lavage fluid from patients with CRS and control subjects. We analyzed mRNA for the mast cell proteases tryptase, chymase, and carboxypeptidase A3 by using real-time PCR and measured mast cell protease proteins by using ELISA, immunohistochemistry, and immunofluorescence.

resultsTryptase mRNA was significantly increased in nasal polyps (NPs) from patients with CRSwNP (P< .001) compared with uncinate tissue from patients with CRS or control subjects. Tryptase protein was also elevated in NPs and in nasal lavage fluids from patients with CRSwNP. Immnohistochemistry showed increased numbers of mast cells in epithelium and glands but not within the lamina propria in NPs. The mast cells detected in the epithelium in NPs were characterized by the expression of tryptase and carboxypeptidase A3 but not chymase. Mast cells expressing all the 3 proteases were abundant within the glandular epithelium of NPs but were not found in normal glandular structures.

conclusionsHerein we demonstrated a unique localization of mast cells within the glandular epithelium of NPs and showed that mast cells in NPs have distinct phenotypes that vary by tissue location. Glandular mast cells and the diverse subsets of mast cells detected may contribute to the pathogenesis of CRSwNP.

Indexed as

AdolescentAdultCarboxypeptidases AChronic DiseaseChymasesEnzyme-Linked Immunosorbent AssayEpitheliumFemaleGene ExpressionHumansImmunohistochemistryMaleMast CellsMiddle AgedNasal Lavage FluidNasal PolypsCarboxypeptidases AChymasesCPA3 protein, humanRNA, MessengerTryptases

Identifiers

PMID22534535
PMCPMC3408832
OpenAlexW2081748056

What OpenQuestion holds

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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.