Evidence map›Paper›PMID 9071939›Full record

ArticleGut1997

Altered expression of alpha 4 beta 7, a gut homing integrin, by circulating and mucosal T cells in colonic mucosal inflammation.

J Meenan, J Spaans, T A Grool, S T Pals, G N Tytgat, S J van Deventer

Open access · bronzeAbstract read
In one paragraph

Article in Gut, 1997. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed, 1 pooled it
2.7field-weighted citation impact, top 9% 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

40 citing papers in PubMed, 1 synthesis or guideline pooled it, 104 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Review
  5. Review
  6. Frontiers in pharmacology · 2025
    Review
  7. Article
  8. Expression of IL-7RαPediatric gastroenterology, hepatology & nutrition · 2024
    Article
  9. Review
  10. Article
  11. Article
  12. Review
  13. Article
  14. Review
  15. Article
  16. Article
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  19. Review
  20. Observational
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

6 authors at 1 institution in 1 country.

J MeenanDepartment of Experimental Internal Medicine, University of Amsterdam, The Netherlands.
J Spaans
T A Grool
S T Pals
G N Tytgat
S J van Deventer
University of Amsterdam · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND

aimsExpression of alpha 4 beta 7 on memory T lymphocytes identifies a cell population that preferentially migrates to the gut. Detection of alpha 4 beta 7 on circulating lymphocytes may permit the identification of specific subsets trafficking between the circulation and the gut in inflammatory bowel diseases. PATIENTS: Samples and clinical details were taken from patients with Crohn's disease (CD), ulcerative colitis (UC), diverticulitis/ infectious colitis, and healthy controls.

methodsPeripheral blood and lamina propria mononuclear cells were isolated. Cells were labelled with CD3, CD4, CD25, CD45RO or alpha 4 beta 7.

resultsMedian levels of circulating total memory T cells (CD4+CD45RO+) were increased in CD (p < 0.01) and UC (p < 0.05). However, the proportion of systemic gut homing T cells (CD4+CD45RO+ alpha 4 beta 7+) was decreased in CD (p < 0.05), UC (p < 0.002), and inflammatory controls (p < 0.05). Levels of activated gut homing T cells (CD4+CD25+ alpha 4 beta 7+) were increased in CD (p < 0.01) and UC (p < 0.05). For both CD4+CD45RO+ and CD4+CD25+ cells, the proportion of lymphocytes coexpressing alpha 4 beta 7 was decreased compared with controls. In small and large intestine lamina propria, expression of alpha 4 beta 7+ on CD3+ cells was extensive, although it was decreased in CD (p < 0.03), UC (p < 0.05), and inflammatory controls (p < 0.05).

conclusionsCirculating and mucosal gut homing lymphocyte populations are changed in patients with colonic inflammation. This may arise due to a dilution effect from recruited naive T cells, or from integrin down regulation. Changes in general CD4+ lymphocyte populations mask more subtle variations in those cells with gut homing potential.

Indexed as

Immunologic MemoryCD3 ComplexCD4 AntigensColitis, UlcerativeColonCrohn DiseaseHumansInflammatory Bowel DiseasesIntegrinsIntestinal MucosaIntestine, SmallLeukocyte Common AntigensReceptors, Interleukin-2T-LymphocytesCD3 ComplexCD4 Antigensintegrin alpha4beta7IntegrinsLeukocyte Common AntigensReceptors, Interleukin-2

Identifiers

PMID9071939
PMCPMC1027056
OpenAlexW2140396409

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.