Evidence map›Paper›PMID 15937291›Full record

ArticleAmerican journal of respiratory and critical care medicine2005

Oligoclonal CD4+ T cells in the lungs of patients with severe emphysema.

Andrew K Sullivan, Philip L Simonian, Michael T Falta, John D Mitchell, Gregory P Cosgrove, Kevin K Brown, Brian L Kotzin, Norbert F Voelkel, Andrew P Fontenot

Open access · greenAbstract read
In one paragraph

Article in American journal of respiratory and critical care medicine, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
55citing papers in PubMed, 2 pooled it
8.5field-weighted citation impact, top 2% 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

55 citing papers in PubMed, 2 syntheses or guidelines pooled it, 152 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Article
  5. Lung NR3C1Communications biology · 2025
    Article
  6. Review
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  9. Nutrients · 2023
    Article
  10. Review
  11. Review
  12. Article
  13. Article
  14. Review
  15. How Do Innate Immune Cells Contribute to Airway Remodeling in COPD Progression?International journal of chronic obstructive pulmonary disease · 2020
    Review
  16. Article
  17. Article
  18. Review
  19. Article
  20. Microarray analysis of long non-coding RNAs in COPD lung tissue.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2015
    Article
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 1 institution in 1 country.

Andrew K SullivanDepartment of Medicine, University of Colorado Health Sciences Center, Denver, Colorado 80262, USA.
Philip L Simonian
Michael T Falta
John D Mitchell
Gregory P Cosgrove
Kevin K Brown
Brian L Kotzin
Norbert F Voelkel
Andrew P Fontenot
National Jewish Health · US

Funding

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 HL02005NHLBI NIH HHS HL62410NHLBI NIH HHS K08 HL089766
6 · The paper itself

Abstract

rationaleWithin the lungs of patients with severe emphysema, inflammation continues despite smoking cessation. Foci of T lymphocytes in the small airways of patients with emphysema have been associated with disease severity. Whether these T cells play an important role in this continued inflammatory response is unknown.

objectiveThe aim of this study was to determine if T cells recruited to the lungs of subjects with severe emphysema contain oligoclonal T-cell populations, suggesting their accumulation in response to antigenic stimuli.

methodsLung T-cell receptor (TCR) Vbeta repertoire from eight patients with severe emphysema and six control subjects was evaluated at the time of tissue procurement (ex vivo) and after 2 weeks of culture with interleukin 2 (in vitro). Junctional region nucleotide sequencing of expanded TCR-Vbeta subsets was performed.

resultsNo significantly expanded TCR-Vbeta subsets were identified in ex vivo samples. However, T cells grew from all emphysema (n = 8) but from only one of the control lung samples (n = 6) when exposed to interleukin 2 (p = 0.0013). Within the cultured cells, seven major CD4-expressing TCR-Vbeta subset expansions were identified from five of the patients with emphysema. These expansions were composed of oligoclonal populations of T cells that had already been expanded in vivo.

conclusionSevere emphysema is associated with inflammation involving T lymphocytes that are composed of oligoclonal CD4+ T cells. These T cells are accumulating in the lung secondary to conventional antigenic stimulation and are likely involved in the persistent pulmonary inflammation characteristic of severe emphysema.

Indexed as

AdultAgedCD4-Positive T-LymphocytesClone CellsFemaleHumansLungMaleMiddle AgedPulmonary EmphysemaReceptors, Antigen, T-Cell, alpha-betaReceptors, Antigen, T-Cell, alpha-beta

Identifiers

PMID15937291
PMCPMC2718531
OpenAlexW2168591827

What OpenQuestion holds

Textmetadata
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.