Evidence map›Paper›PMID 23573812›Full record

ArticleAllergy2013

IL-13-producing BLT1-positive CD8 cells are increased in asthma and are associated with airway obstruction.

A Dakhama, M L Collins, H Ohnishi, E Goleva, D Y M Leung, R Alam, E R Sutherland, R J Martin, E W Gelfand

Abstract read
In one paragraph

Article in Allergy, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
3.5field-weighted citation impact, top 7% 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

34 citing papers in PubMed, 50 citations in OpenAlex.

  1. Trial
  2. Review
  3. Article
  4. Review
  5. Review
  6. Type-2 CD8Nature communications · 2023
    Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Observational
  12. Article
  13. Article
  14. CD8European respiratory review : an official journal of the European Respiratory Society · 2019
    Review
  15. Article
  16. Article
  17. Hypoxia enhances CD8The Journal of allergy and clinical immunology · 2019
    Article
  18. Article
  19. Leukotriene A4 Hydrolase Activation and Leukotriene B4 Production by Eosinophils in Severe Asthma.American journal of respiratory cell and molecular biology · 2019
    Article
  20. 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

9 authors at 2 institutions in 1 country.

A DakhamaDepartment of Pediatrics, National Jewish Health, Denver, CO 80014, USA. DakhamaA@NJHealth.org
M L Collins
H Ohnishi
E Goleva
D Y M Leung
R Alam
E R Sutherland
R J Martin
E W Gelfand
National Jewish Health · USUniversity of Colorado Denver · US

Funding

Signaling Memory in Chronic AsthmaP01HL036577 · NHLBI · NATIONAL JEWISH HEALTH · PI DAKHAMA, AZZEDDINE · 1986 to 2011
$18.7M
Mechanisms of steroid resistant asthmaR01AI070140 · NIAID · NATIONAL JEWISH HEALTH · PI LEUNG, DONALD YM · 2007 to 2011
$2.5M
Role of MEK1 in T cell function in asthmaR01AI091614 · NIAID · NATIONAL JEWISH HEALTH · PI ALAM, RAFEUL · 2011 to 2015
$2.0M
Mechanisms of Steroid Resistant AsthmaR56AI070140 · NIAID · NATIONAL JEWISH HEALTH · PI GOLEVA, ELENA, LEUNG, DONALD YM · 2012 to 2012
$431k
NHLBI NIH HHS HL-36577NHLBI NIH HHS P01 HL036577NIAID NIH HHS AI-070140NIAID NIH HHS R01 AI070140NIAID NIH HHS R01 AI091614NIAID NIH HHS R56 AI070140
6 · The paper itself

Abstract

backgroundThe role of CD8 T lymphocytes in the pathogenesis of asthma is not well understood. We investigated whether a subset of IL-13-producing BLT1-positive CD8 T lymphocytes are present in asthmatic airways and are associated with impaired lung function.

methodsBronchoalveolar lavage (BAL) cells were obtained from asthmatic (n = 39) and healthy control (n = 28) subjects. Cells were stimulated with phorbol ester and ionomycin in the presence of brefeldin A and stained for CD8, BLT1, and intracellular IL-13. The frequency of IL-13-producing BLT1-positive CD8 T lymphocytes was compared between the two groups and related to lung function, serum IgE levels, and reticular basement membrane (RBM) thickness.

resultsA subset of CD8 T lymphocytes expressing BLT1 and producing IL-13 were detected in the airways of all asthmatic subjects. The frequency of this subset among recovered lymphocytes was significantly higher in the airways of asthmatic subjects compared with controls (mean ± SEM: 16.2 ± 1.4 vs 5.3 ± 0.5, respectively, P < 0.001) and correlated positively with serum IgE levels and RBM thickness. More importantly, the frequency of CD8 T lymphocytes co-expressing BLT1 and IL-13 was inversely related to FEV1 and FEF[25-75] percent predicted values (P < 0.001).

conclusionsA subset of CD8 T lymphocytes expressing BLT1 and producing IL-13 is present in the airways of asthmatics. The accumulation of these cells is associated with airway obstruction, suggesting that they may play a significant pathogenic role in bronchial asthma.

Indexed as

AdolescentAdultAirway ObstructionAsthmaBronchoalveolar Lavage FluidCase-Control StudiesCD8-Positive T-LymphocytesFemaleHumansInterleukin-13MaleMiddle AgedReceptors, Leukotriene B4Respiratory Function TestsYoung AdultInterleukin-13LTB4R protein, humanReceptors, Leukotriene B4

Identifiers

PMID23573812
PMCPMC3630251
OpenAlexW2070065588

What OpenQuestion holds

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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.