Evidence map›Paper›PMID 21925467›Full record

ArticleGastroenterology2011

Gut-tropic T cells that express integrin α4β7 and CCR9 are required for induction of oral immune tolerance in mice.

Barbara Cassani, Eduardo J Villablanca, Francisco J Quintana, Paul E Love, Adam Lacy-Hulbert, William S Blaner, Tim Sparwasser, Scott B Snapper, Howard L Weiner, J Rodrigo Mora

Abstract read
In one paragraph

Article in Gastroenterology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 105 papers.

0numbers the graph read from it
0cells of the map it votes in
105citing papers in PubMed
6.5field-weighted citation impact, top 3% 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

105 citing papers in PubMed, 195 citations in OpenAlex.

  1. Trial
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  7. Transport functions of intestinal lymphatic vessels.Nature reviews. Gastroenterology & hepatology · 2025
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  12. Observational
  13. Mechanisms and functions of intestinal vascular specialization.The Journal of experimental medicine · 2024
    Review
  14. GPR43 stimulation on TCRαβJournal of neuroinflammation · 2023
    Article
  15. Article
  16. Review
  17. Review
  18. Review
  19. Review
  20. Article

45 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

10 authors at 5 institutions in 2 countries.

Barbara CassaniGastrointestinal Unit, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA.
Eduardo J Villablanca
Francisco J Quintana
Paul E Love
Adam Lacy-Hulbert
William S Blaner
Tim Sparwasser
Scott B Snapper
Howard L Weiner
J Rodrigo Mora
Harvard University · USCenter for Experimental and Clinical Infection Research · DEColumbia University · USEunice Kennedy Shriver National Institute of Child Health and Human Development · USMassachusetts General Hospital · US

Funding

Genes and signals controlling mammalian hematopoiesis.ZIAHD001803 · NICHD · EUNICE KENNEDY SHRIVER NATIONAL INSTITUTE OF CHILD HEALTH & HUMAN DEVELOPMENT · PI LOVE, PAUL E · 2009 to 2025
$36.9M
Pilot & Feasibility ProgramP30DK043351 · NIDDK · MASSACHUSETTS GENERAL HOSPITAL · PI RAYMOND T CHUNG · 1991 to 2026
$35.3M
The function of T Bet in EAEP01NS038037 · NINDS · BRIGHAM AND WOMEN'S HOSPITAL · PI WEINER, HOWARD L · 2000 to 2010
$12.8M
Virus discovery in cutaneous T cell lymphomaP30AR042689 · NIAMS · BRIGHAM AND WOMEN'S HOSPITAL · PI KUPPER, THOMAS S. · 1994 to 2010
$6.8M
Reassessing the Physiological Role of Gut-Specific Lymphocyte Homing: ImplicationDP2OD006512 · OD · MASSACHUSETTS GENERAL HOSPITAL · PI MORA, JORGE RODRIGO · 2009 to 2009
$2.7M
Central Nervous System Autoimmunity and Immunoregulation in the ZebrafishR00AI075285 · NIAID · BRIGHAM AND WOMEN'S HOSPITAL · PI QUINTANA, FRANCISCO J. · 2010 to 2011
$496k
NCCDPHP CDC HHS DP2 2009A054301NIAID NIH HHS AI435801NIAID NIH HHS R00 AI075285NIAID NIH HHS R00 AI075285-02NIAMS NIH HHS P30 AR042689NIDDK NIH HHS P30 DK043351NIH HHS DP2 OD006512NINDS NIH HHS NS38037NINDS NIH HHS P01 NS038037
6 · The paper itself

Abstract

BACKGROUND &

aimsInduction of oral immune tolerance (OT) blocks proinflammatory responses to orally administered antigens and might be used to treat autoimmune conditions. We investigated whether gut-tropic T cells that express the integrin α4β7 and the chemokine receptor CCR9 are required for OT.

methodsSkin delayed-type hypersensitivity and experimental autoimmune encephalomyelitis were used to monitor OT in mice. To assess the role of receptors that mediate localization of lymphocytes to the gut (gut-homing receptors) in induction of OT, we studied CCR9(-/-) and β7(-/-) mice and also blocked the α4β7 ligand MAdCAM-1 in wild-type mice. We used DEREG and Scurfy mice to assess the role of Foxp3(+) regulatory T cells (Treg) and IL-10(-/-) and IL-10Rβ(-/-) mice to examine the role of interleukin (IL)-10 in induction of OT.

resultsOT could not be induced in CCR9(-/-) or β7(-/-) mice, or when MAdCAM-1 was blocked in wild-type mice, indicating that gut-homing receptors are required for oral tolerization. Consistent with the role of all-trans retinoic acid in inducing gut-homing T cells, OT could not be induced in mice depleted of vitamin A. OT was rescued in CCR9(-/-) mice following adoptive transfer of wild-type T cells, but not CCR9(-/-) or β7(-/-) T cells. Gut-homing T cells are therefore necessary and sufficient to induce OT. Wild-type Treg and IL-10 were required to restore OT to CCR9(-/-) mice, indicating that homing and functional differentiation of IL-10-producing Treg in the gut is required for OT. Conversely, transfer of CCR9(-/-) or β7(-/-) T cells to wild-type mice partially inhibited OT.

conclusionsExpression of CCR9 and α4β7 on T cells and their subsequent localization to the gut is required for induction of OT in mice. Therapies designed to block gut-homing receptors might, under some conditions, interfere with normal tolerogenic mechanisms in the intestinal mucosa.

Indexed as

AnimalsCell MovementEncephalomyelitis, Autoimmune, ExperimentalHypersensitivity, DelayedImmune ToleranceIntegrinsInterleukin-10Intestinal MucosaMiceMouth MucosaReceptors, CCRT-Lymphocytes, RegulatoryCC chemokine receptor 9integrin alpha4beta7IntegrinsInterleukin-10Receptors, CCR

Identifiers

PMID21925467
PMCPMC3222333
OpenAlexW2002368408

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Registered trials

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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.