Evidence map›Paper›PMID 16487250›Full record

ArticleClinical and experimental immunology2006

T cell-mediated oral tolerance is intact in germ-free mice.

K L W Walton, J A Galanko, R Balfour Sartor, N C Fisher

Open access · greenAbstract read
In one paragraph

Article in Clinical and experimental immunology, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
0.8field-weighted citation impact, top 30% 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

19 citing papers in PubMed, 36 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Review
  6. Intestinal Macromolecular Transport Supporting Adaptive Immunity.Cellular and molecular gastroenterology and hepatology · 2019
    Review
  7. Review
  8. Review
  9. Article
  10. Review
  11. Review
  12. Oral tolerance to food protein.Mucosal immunology · 2012
    Review
  13. Article
  14. Oral tolerance.Immunological reviews · 2011
    Review
  15. Article
  16. Article
  17. Review
  18. Article
  19. Oral tolerance.Immunological reviews · 2005
    Review
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

4 authors at 2 institutions in 1 country.

K L W WaltonDepartment of Medicine, SPIRE Program, Centre for Gastrointestinal Biology of Disease, Univeristy of North Carolina, Chapel Hill, NC 27599-7032, USA. kristen_williams@med.unc.edu
J A Galanko
R Balfour Sartor
N C Fisher
Spire Corporation (United States) · USUniversity of North Carolina at Chapel Hill · US

Funding

SEEDING POSTDOCTORAL INNOVATORS IN RESEARCH &EDUCATIONK12GM000678 · NIGMS · UNIV OF NORTH CAROLINA CHAPEL HILL · PI DONALD T LYSLE, Kathryn Joanna Reissner · 1999 to 2026
$30.9M
PILOT AND FEASIBILITY STUDIESP30DK034987 · NIDDK · UNIV OF NORTH CAROLINA CHAPEL HILL · PI ANTHONY BLIKSLAGER · 1985 to 2026
$30.5M
Colitis Induced by immune responses to luminal bacteria-mouseR01DK053347 · NIDDK · UNIV OF NORTH CAROLINA CHAPEL HILL · PI SARTOR, RYAN B · 1998 to 2012
$4.6M
NIAID NIH HHS AI 0411579NIDDK NIH HHS P30 DK034987NIDDK NIH HHS P30 DK 34987NIDDK NIH HHS R01 DK053347NIDDK NIH HHS R01 DK 53347NIGMS NIH HHS GM 00978NIGMS NIH HHS K12 GM000678
6 · The paper itself

Abstract

Commensal enteric bacteria stimulate innate immune cells and increase numbers of lamina propria and mesenteric lymph node (MLN) T and B lymphocytes. However, the influence of luminal bacteria on acquired immune function is not understood fully. We investigated the effects of intestinal bacterial colonization on T cell tolerogenic responses to oral antigen compared to systemic immunization. Lymphocytes specific for ovalbumin-T cell receptor (OVA-TCR Tg(+)) were transplanted into germ-free (GF) or specific pathogen-free (SPF) BALB/c mice. Recipient mice were fed OVA or immunized subcutaneously with OVA peptide (323-339) in complete Freund's adjuvant (CFA). Although the efficiency of transfer was less in GF recipients, similar proportions of cells from draining peripheral lymph node (LN) or MLN were proliferating 3-4 days later in vivo in GF and SPF mice. In separate experiments, mice were fed tolerogenic doses of OVA and then challenged with an immunogenic dose of OVA 4 days later. Ten days after immunization, lymphocytes were restimulated with OVA in vitro to assess antigen-specific proliferative responses. At both high and low doses of OVA, cells from both SPF and GF mice fed OVA prior to immunization had decreased proliferation compared to cells from control SPF or GF mice. In addition, secretion of interferon (IFN)-gamma and interleukin (IL)-10 by OVA-TCR Tg(+) lymphocytes was reduced in both SPF and GF mice fed OVA compared to control SPF or GF mice. Unlike previous reports indicating defective humoral responses to oral antigen in GF mice, our results indicate that commensal enteric bacteria do not enhance the induction of acquired, antigen-specific T cell tolerance to oral OVA.

Indexed as

Immune ToleranceAdministration, OralAdoptive TransferAnimalsCells, CulturedEnterobacteriaceaeGerm-Free LifeImmunity, MucosalInjections, SubcutaneousInterferon-gammaIntestinal MucosaLymphocyte ActivationLymphocyte TransfusionMiceMice, Inbred BALB COvalbuminInterferon-gammaOvalbuminReceptors, Antigen, T-Cell

Identifiers

PMID16487250
PMCPMC1809622
OpenAlexW1973230063

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.