Evidence map›Paper›PMID 19414809›Full record

ArticleJournal of immunology (Baltimore, Md. : 1950)2009

IL-17A-expressing T cells are essential for bacterial clearance in a murine model of hypersensitivity pneumonitis.

Philip L Simonian, Christina L Roark, Fabian Wehrmann, Allison M Lanham, Willi K Born, Rebecca L O'Brien, Andrew P Fontenot

Open access · bronzeAbstract read
In one paragraph

Article in Journal of immunology (Baltimore, Md. : 1950), 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed
4.0field-weighted citation impact, top 6% 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

50 citing papers in PubMed, 95 citations in OpenAlex.

  1. How experimental models have unlocked hidden mechanisms of hypersensitivity pneumonitis.European respiratory review : an official journal of the European Respiratory Society · 2026
    Review
  2. Article
  3. Review
  4. Article
  5. The function of γδ T cells in humoral immune responses.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2023
    Review
  6. Review
  7. Protein Phosphatase 2A: Role in T Cells and Diseases.Journal of immunology research · 2023
    Review
  8. Article
  9. Chronic Occupational Mold Exposure Drives Expansion ofJournal of fungi (Basel, Switzerland) · 2021
    Article
  10. Article
  11. The Roles of Immune Cells in the Pathogenesis of Fibrosis.International journal of molecular sciences · 2020
    Review
  12. Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Phosphatase PP2A is essential for TProceedings of the National Academy of Sciences of the United States of America · 2019
    Article
  18. Review
  19. Review
  20. Innate T Cells Govern Adipose Tissue Biology.Journal of immunology (Baltimore, Md. : 1950) · 2018
    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

7 authors at 2 institutions in 1 country.

Philip L SimonianDepartment of Medicine, University of Colorado Denver, Aurora, CO 80045, USA. philip.simonian@ucdenver.edu
Christina L Roark
Fabian Wehrmann
Allison M Lanham
Willi K Born
Rebecca L O'Brien
Andrew P Fontenot
National Jewish Health · USUniversity of Colorado Denver · US

Funding

T Cells in Beryllium Sensitization and DiseaseP01ES011810 · NIEHS · UNIVERSITY OF COLORADO DENVER · PI NEWMAN, LEE S · 2002 to 2013
$14.0M
PATHOGENIC T CELLS IN CHRONIC BERYLLIUM DISEASER01HL062410 · NHLBI · UNIVERSITY OF COLORADO DENVER · PI FONTENOT, ANDREW P. · 1998 to 2017
$5.7M
Regulatory Role of Gama-Delta T cells in the Development of Pulmonary FibrosisK08HL089766 · NHLBI · UNIVERSITY OF COLORADO DENVER · PI SIMONIAN, PHILIP LEVON · 2007 to 2011
$662k
NHLBI NIH HHS HL62410NHLBI NIH HHS HL89766NHLBI NIH HHS K08 HL089766NHLBI NIH HHS R01 HL062410NIEHS NIH HHS ES011810NIEHS NIH HHS P01 ES011810
6 · The paper itself

Abstract

Hypersensitivity pneumonitis (HP) is an inflammatory lung disease characterized by a diffuse mononuclear cell infiltrate in the lung that can progress to pulmonary fibrosis with chronic exposure to an inhaled Ag. We previously reported that C57BL/6 mice repeatedly exposed to the ubiquitous microorganism Bacillus subtilis develop mononuclear infiltrates in the lung that contain Vgamma6/Vdelta1(+) gammadelta T cells. In the absence of this T cell subset, mice treated with B. subtilis had significantly increased collagen deposition in the lung, suggesting a regulatory role for Vgamma6/Vdelta1(+) gammadelta T cells. To further investigate the role of Vgamma6/Vdelta1(+) gammadelta T cells in B. subtilis-induced lung fibrosis, we exposed transgenic Vgamma6/Vdelta1 mice to this microorganism and found decreased collagen content in the lung compared with wild-type C57BL/6 mice. Cytokine analysis of lung homogenates from wild-type C57BL/6 mice demonstrated increased IL-17A concentrations with repeated exposure to B. subtilis. In the absence of IL-17 receptor signaling, IL-17ra(-/-) mice had delayed clearance of B. subtilis with increased lung inflammation and fibrosis. Although IL-17A was predominantly expressed by Vgamma6/Vdelta1(+) T cells, a compensatory increase in IL-17A expression by CD4(+) T cells was seen in the absence of gammadelta T cells that resulted in similar levels of IL-17A in the lungs of TCRdelta(-/-) and wild-type C57BL/6 mice. In combination, our data suggest an important role for IL-17A-expressing T lymphocytes, both gammadelta and alphabeta T cells, in eliminating this microorganism that prevents excessive inflammation and eventual lung fibrosis in this murine model of B. subtilis-induced hypersensitivity pneumonitis.

Indexed as

Alveolitis, Extrinsic AllergicAnimalsBacillus subtilisCollagenCytokinesDisease Models, AnimalDisease ProgressionEnzyme-Linked Immunosorbent AssayFlow CytometryFluorescent Antibody TechniqueGram-Positive Bacterial InfectionsInterleukin-17MiceMice, Inbred C57BLMice, TransgenicPulmonary FibrosisCollagenCytokinesIl17ra protein, mouseInterleukin-17Receptors, Interleukin-17

Identifiers

PMID19414809
PMCPMC2766088
OpenAlexW2142316043

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.