Evidence map›Paper›PMID 17330821›Full record

ArticleEuropean journal of immunology2007

Arginase activity mediates reversible T cell hyporesponsiveness in human pregnancy.

Pascale Kropf, David Baud, Sara E Marshall, Markus Munder, Angelina Mosley, José M Fuentes, Charles R M Bangham, Graham P Taylor, Shanti Herath, Beak-San Choi and 4 more

Open access · bronzeAbstract read
In one paragraph

Article in European journal of immunology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 85 papers.

0numbers the graph read from it
0cells of the map it votes in
85citing papers in PubMed
3.1field-weighted citation impact, top 8% 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

85 citing papers in PubMed, 162 citations in OpenAlex.

  1. Trial
  2. Article
  3. Review
  4. Article
  5. Myeloid cells meet CD8Chinese journal of cancer research = Chung-kuo yen cheng yen chiu · 2024
    Article
  6. Review
  7. Article
  8. Review
  9. Review
  10. Review
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  12. Dietary modification of myeloid-derived suppressor cells (MDSC) activity in sepsis.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  13. Review
  14. Article
  15. Review
  16. Maternal DNA Methylation During Pregnancy: a Review.Reproductive sciences (Thousand Oaks, Calif.) · 2021
    Review
  17. Article
  18. Review
  19. Frontiers in cellular and infection microbiology · 2020
    Article
  20. Review

25 more citing papers are in PubMed but not listed here.

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

14 authors at 6 institutions in 3 countries.

Pascale KropfDepartment of Immunology, Faculty of Medicine, Imperial College London, London, UK.
David Baud
Sara E Marshall
Markus Munder
Angelina Mosley
José M Fuentes
Charles R M Bangham
Graham P Taylor
Shanti Herath
Beak-San Choi
Germán Soler
Tg Teoh
Manuel Modolell
Ingrid Müller
Imperial College London · GBUniversidad de Extremadura · ESHeidelberg University · DEMax Planck Institute of Immunobiology and Epigenetics · DERoyal Veterinary College · GBSt. Mary's Hospital · GB

Funding

Wellcome Trust
6 · The paper itself

Abstract

Complex regulation of T cell functions during pregnancy is required to ensure materno-fetal tolerance. Here we reveal a novel pathway for the temporary suppression of maternal T cell responses in uncomplicated human pregnancies. Our results show that arginase activity is significantly increased in the peripheral blood of pregnant women and remarkably high arginase activities are expressed in term placentae. High enzymatic activity results in high turnover of its substrate L-arginine and concomitant reduction of this amino acid in the microenvironment. Amino acid deprivation is emerging as a regulatory pathway of lymphocyte responses and we assessed the consequences of this enhanced arginase activity on T cell responses. Arginase-mediated L-arginine depletion induces down-regulation of CD3 zeta, the main signalling chain of the TCR, and functional T cell hyporesponsiveness. Importantly, this arginase-mediated T cell suppression was reversible, as inhibition of arginase activity or addition of exogenous L-arginine restored CD3 zeta chain expression and T cell proliferation. Thus, L-arginine metabolism constitutes a novel physiological mechanism contributing to the temporary suppression of the maternal immune response during human pregnancy.

Indexed as

Immune ToleranceAdultArginaseArginineCells, CulturedEnzyme ActivationFemaleHumansPlacentaPregnancyPregnancy ProteinsT-LymphocytesArginaseArgininePregnancy Proteins

Identifiers

PMID17330821
PMCPMC2699382
OpenAlexW2170122868

What OpenQuestion holds

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LicenceCC BY
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.