Evidence map›Paper›PMID 17101658›Full record

ArticleInfection and immunity2007

Endogenous CD4(+) CD25(+) regulatory T cells have a limited role in the control of Trypanosoma cruzi infection in mice.

Joshua Kotner, Rick Tarleton

Open access · greenAbstract readComparative Study
In one paragraph

Article in Infection and immunity, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed, 1 pooled it
3.6field-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

47 citing papers in PubMed, 1 synthesis or guideline pooled it, 90 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Article
  5. The Blockade of Interleukin-2 During the Acute Phase ofFrontiers in cellular and infection microbiology · 2021
    Article
  6. Article
  7. Understanding CD8Trends in parasitology · 2019
    Review
  8. The Binary Classification Of Chronic Diseases.Journal of inflammation research · 2019
    Article
  9. Article
  10. Regulatory Role of CD4Journal of immunology research · 2018
    Review
  11. Limited Foxp3Frontiers in immunology · 2018
    Article
  12. Review
  13. Review
  14. Article
  15. Benznidazole affects expression of Th1, Th17 and Treg cytokines during acute experimentalThe journal of venomous animals and toxins including tropical diseases · 2017
    Article
  16. Article
  17. Article
  18. Article
  19. Review
  20. 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

2 authors at 1 institution in 1 country.

Joshua KotnerDepartment of Cellular Biology, University of Georgia, Athens, GA 30602, USA.
Rick Tarleton
University of Georgia · US

Funding

IMMUNOREGULATION IN EXPERIMENTAL CHAGAS'DISEASER01AI022070 · NIAID · UNIVERSITY OF GEORGIA (UGA) · PI TARLETON, RICK L · 1985 to 2011
$3.2M
NIAID NIH HHS R01 AI022070NIAID NIH HHS R01 AI22070
6 · The paper itself

Abstract

Infection with the protozoan parasite Trypanosoma cruzi results in a robust and multifaceted immune response that controls parasite load but is unable to completely clear infection, resulting in parasite persistence and a chronic illness known as Chagas' disease in humans. The severity of Chagas' disease is correlated with persistent parasitism of muscle, neuronal, and gut tissues. The natural immunomodulatory function of endogenous CD4(+) CD25(+) regulatory T cells (Treg cells) to limit hyperactive immune responses may be exploited by microbes to persist despite host responses. In this study, we show that Treg cells are not necessary for T. cruzi evasion of immune responses during acute or chronic infection. In vivo anti-CD25 monoclonal antibody-mediated depletion of Treg cells from mice prior to challenge with a lethal strain or prior to and during acute infection with a nonlethal strain of parasite neither improved nor worsened the outcome of immune responses: differences in parasitemia, kinetics of antigen-specific CD8(+) T-cell expansion, and CD8(+) T-cell effector function (both in vivo and ex vivo) were of similar magnitudes for both depleted and control groups. Furthermore, depletion of CD25(+) cells from chronically infected mice did not enhance immune responses of muscle-derived CD8(+) T cells, nor could FoxP3 mRNA/scurfin-expressing leukocytes be isolated from muscle tissue. Based on the results of this study, it is concluded that Treg cells do not appear to play a major role in regulating CD8(+) T-cell effector responses during the acute phase of infection or in the muscles of mice during chronic T. cruzi infection.

Indexed as

AnimalsAntibodies, MonoclonalCD4 AntigensCD8-Positive T-LymphocytesChagas DiseaseDisease Models, AnimalFemaleForkhead Transcription FactorsGene ExpressionInterleukin-2 Receptor alpha SubunitLeukocytesLymphocyte CountMiceMice, Inbred C3HMice, Inbred C57BLMusclesAntibodies, MonoclonalCD4 AntigensForkhead Transcription FactorsFoxp3 protein, mouseInterleukin-2 Receptor alpha SubunitRNA, Messenger

Identifiers

PMID17101658
PMCPMC1828478
OpenAlexW2168161870

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.