Evidence map›Paper›PMID 9014812›Full record

ArticleImmunology1996

Microbial colonization influences composition and T-cell receptor V beta repertoire of intraepithelial lymphocytes in rat intestine.

L Helgeland, J T Vaage, B Rolstad, T Midtvedt, P Brandtzaeg

Abstract read
In one paragraph

Article in Immunology, 1996. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
1.4field-weighted citation impact, top 18% 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

34 citing papers in PubMed, 122 citations in OpenAlex.

  1. Review
  2. Review
  3. Review
  4. Recent advances on immunity and hypertension: the new cells on the kidney block.American journal of physiology. Renal physiology · 2025
    Review
  5. Review
  6. Intraepithelial Lymphocytes of the Intestine.Annual review of immunology · 2024
    Review
  7. Review
  8. Review
  9. Review
  10. Article
  11. Review
  12. Review
  13. Novel players in coeliac disease pathogenesis: role of the gut microbiota.Nature reviews. Gastroenterology & hepatology · 2015
    Review
  14. Review
  15. Review
  16. Review
  17. Gut-liver axis: role of inflammasomes.Journal of clinical and experimental hepatology · 2013
    Review
  18. Article
  19. Article
  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

5 authors at 3 institutions in 3 countries.

L HelgelandLaboratory for Immunohistochemistry and Immunopathology (LIIPAT), University of Oslo, Norway.
J T Vaage
B Rolstad
T Midtvedt
P Brandtzaeg
University of Oslo · NOInstitute of Pathology and Genetics · BEKarolinska Institutet · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Studies in mice have shown that the composition of intestinal intraepithelial lymphocytes (IEL) may be markedly altered by gut microbial colonization. Such modulation was studied in a rat model by the use of germ-free and conventionalized animals from which IEL from the small intestine were isolated and analysed by flow cytometry. Conventionalization caused expansion as well as phenotypic alterations of T-cell receptor (TCR) alpha/beta + IEL in that the proportions of CD4+ and CD8 alpha beta + TCR alpha/beta + cells were increased, while the double negative (CD4- CD8-) fraction was reduced. microbial colonization also influenced the TCR V beta repertoire of CD8+ IEL in that the proportions of V beta 8.2+ and V beta 10+ cells were increased, whereas V beta 8.5+ and V beta 16+ cells were relatively decreased. Moreover, conventionalization influenced the levels of TCR cell surface expression in the same V beta subsets. Three-colour flow-cytometric analysis demonstrated that skewing of the V beta repertoire was most pronounced in the CD8 alpha alpha + subset, although the numerical increase of IEL mainly included the CD8 alpha beta + subset. In contrast to IEL, the TCR V beta repertoire in mesenteric lymph nodes was unchanged after intestinal colonization. These results confirm that TCR alpha/beta + IEL subpopulations respond dynamically to the microbial gut flora and suggest that their V beta repertoire can be shaped by luminal microbial antigens.

Indexed as

AnimalsCD4-Positive T-LymphocytesCD8-Positive T-LymphocytesFlow CytometryGerm-Free LifeImmunity, MucosalIntestinal MucosaLymphocyte ActivationMaleMesenteryRatsRats, Inbred StrainsReceptors, Antigen, T-Cell, alpha-betaT-LymphocytesReceptors, Antigen, T-Cell, alpha-beta

Identifiers

PMID9014812
PMCPMC1456593
OpenAlexW2040231886

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.