Evidence map›Paper›PMID 18203140›Full record

ArticleEuropean journal of immunology2008

Mannose-capped lipoarabinomannan- and prostaglandin E2-dependent expansion of regulatory T cells in human Mycobacterium tuberculosis infection.

Ankita Garg, Peter F Barnes, Sugata Roy, María F Quiroga, Shiping Wu, Verónica E García, Stephan R Krutzik, Steven E Weis, Ramakrishna Vankayalapati

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in European journal of immunology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 56 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
56citing papers in PubMed, 1 pooled it
4.7field-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

56 citing papers in PubMed, 1 synthesis or guideline pooled it, 110 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Trial
  4. Trial
  5. Review
  6. Core fucosylation and its roles in gastrointestinal glycoimmunology.World journal of gastrointestinal oncology · 2023
    Review
  7. Review
  8. Modulation of the Response toFrontiers in microbiology · 2022
    Review
  9. Frontiers in immunology · 2022
    Article
  10. eLife · 2021
    Article
  11. Article
  12. The Involvement ofFrontiers in microbiology · 2021
    Article
  13. Review
  14. Immunology ofMicrobiology spectrum · 2019
    Review
  15. Review
  16. Control of TNature communications · 2018
    Article
  17. Review
  18. Article
  19. Review
  20. Frequency of Circulating CD4Frontiers in immunology · 2018
    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 4 institutions in 2 countries.

Ankita GargCenter for Pulmonary and Infectious Disease Control, University of Texas Health Center, Tyler, TX 75708-3154, USA.
Peter F Barnes
Sugata Roy
María F Quiroga
Shiping Wu
Verónica E García
Stephan R Krutzik
Steven E Weis
Ramakrishna Vankayalapati
The University of Texas Health Science Center at Tyler · USUniversity of Buenos Aires · ARUniversity of California, Los Angeles · USUniversity of North Texas · US

Funding

Regulation of IFN-gamma production in human tuberculosisR01AI063514 · NIAID · UNIVERSITY OF TEXAS HLTH CTR AT TYLER · PI BARNES, PETER F. · 2005 to 2009
$1.3M
The role of NK cells in human M. Tuberculosis infectionR01AI054629 · NIAID · UNIVERSITY OF TEXAS HLTH CTR AT TYLER · PI VANKAYALAPATI, RAMAKRISHNA · 2005 to 2009
$1.3M
NIAID NIH HHS AI 054629NIAID NIH HHS AI 063514NIAID NIH HHS R01 AI054629NIAID NIH HHS R01 AI063514
6 · The paper itself

Abstract

We evaluated the role of regulatory T cells (CD4(+) CD25(+) Foxp3(+) cells, Tregs) in human Mycobacterium tuberculosis infection. Tregs were expanded in response to M. tuberculosis in healthy tuberculin reactors, but not in tuberculin-negative individuals. The M. tuberculosis mannose-capped lipoarabinomannan (ManLAM) resulted in regulatory T cell expansion, whereas the M. tuberculosis 19-kDa protein and heat shock protein 65 had no effect. Anti-IL-10 and anti-TGF-beta alone or in combination, did not reduce expansion of Tregs. In contrast, the cyclooxygenase enzyme-2 inhibitor NS398 significantly inhibited expansion of Tregs, indicating that prostaglandin E2 (PGE2) contributes to Treg expansion. Monocytes produced PGE2 upon culturing with heat-killed M. tuberculosis or ManLAM, and T cells from healthy tuberculin reactors enhanced PGE2 production by monocytes. Expanded Tregs produced significant amounts of TGF-beta and IL-10 and depletion of Tregs from PBMC of these individuals increased the frequency of M. tuberculosis-responsive CD4(+) IFN-gamma cells. Culturing M. tuberculosis-expanded Tregs with autologous CD8(+) cells decreased the frequency of IFN-gamma(+)cells. Freshly isolated PBMC from tuberculosis patients had increased percentages of Tregs, compared to healthy tuberculin reactors. These findings demonstrate that Tregs expand in response to M. tuberculosis through mechanisms that depend on ManLAM and PGE2.

Indexed as

Cell ProliferationAntigens, BacterialCells, CulturedDinoprostoneGrowth InhibitorsHumansLipopolysaccharidesLymphocyte ActivationMannoseMonocytesMycobacterium tuberculosisT-Lymphocytes, RegulatoryTuberculosisAntigens, BacterialDinoprostoneGrowth InhibitorslipoarabinomannanLipopolysaccharidesMannose

Identifiers

PMID18203140
PMCPMC2955512
OpenAlexW2050875299

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.