Evidence map›Paper›PMID 24670427›Full record

ArticleMucosal immunology2014

Targeted colonic claudin-2 expression renders resistance to epithelial injury, induces immune suppression, and protects from colitis.

R Ahmad, R Chaturvedi, D Olivares-Villagómez, T Habib, M Asim, P Shivesh, D B Polk, K T Wilson, M K Washington, L Van Kaer and 2 more

Open access · bronzeAbstract read
In one paragraph

Article in Mucosal immunology, 2014. 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
5.8field-weighted citation impact, top 4% 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, 156 citations in OpenAlex.

  1. Trial
  2. Article
  3. Article
  4. Tight Junction Defects in Aganglionic and Ganglionic Colon in Children With Hirschsprung Disease.Laboratory investigation; a journal of technical methods and pathology · 2026
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  19. Protective Capacity ofPharmaceuticals (Basel, Switzerland) · 2024
    Article
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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

12 authors at 3 institutions in 1 country.

R AhmadDepartment of Surgery, Vanderbilt University School of Medicine, Nashville, Tennessee, USA.
R ChaturvediDepartment of Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee, USA.
D Olivares-VillagómezDepartment of Pathology, Microbiology and Immunology, Vanderbilt University School of Medicine, Nashville, Tennessee, USA.
T HabibBadger Technical Services, Vicksburg, Mississippi, USA.
M AsimDepartment of Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee, USA.
P ShiveshUniversity of Southern California & Children's Hospital Los Angeles, Los Angeles, California, USA.
D B PolkUniversity of Southern California & Children's Hospital Los Angeles, Los Angeles, California, USA.
K T Wilson1] Department of Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee, USA [2] Department of Pathology, Microbiology and Immunology, Vanderbilt University School of Medicine, Nashville, Tennessee, USA [3] Department of Cancer Biology, Vanderbilt University School of Medicine, Nashville, Tennessee, USA.
M K WashingtonDepartment of Pathology, Microbiology and Immunology, Vanderbilt University School of Medicine, Nashville, Tennessee, USA.
L Van KaerDepartment of Pathology, Microbiology and Immunology, Vanderbilt University School of Medicine, Nashville, Tennessee, USA.
P Dhawan1] Department of Surgery, Vanderbilt University School of Medicine, Nashville, Tennessee, USA [2] Department of Cancer Biology, Vanderbilt University School of Medicine, Nashville, Tennessee, USA [3] The Veterans Affair Medical Center, Nashville, Tennessee, USA.
A B Singh1] Department of Surgery, Vanderbilt University School of Medicine, Nashville, Tennessee, USA [2] Department of Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee, USA.
Vanderbilt University · USChildren's Hospital of Los Angeles · USUniversity of Southern California · US

Funding

Tumor Immunology and Microenvironment Research ProgramP30CA068485 · NCI · VANDERBILT UNIVERSITY MEDICAL CENTER · PI Jin Chen · 1995 to 2026
$172.8M
Translational Analysis CoreP30DK058404 · NIDDK · VANDERBILT UNIVERSITY MEDICAL CENTER · PI RICHARD M. PEEK · 2002 to 2026
$29.9M
Role of Iron and B-Catenin Activation in Gastric CarcinogenesisP01CA116087 · NCI · VANDERBILT UNIVERSITY MEDICAL CENTER · PI TIMOTHY L COVER · 2009 to 2026
$27.5M
CYTOKINE REGULATION OF INTESTINAL EPITHELIAL RESTITUTIONR01DK056008 · NIDDK · VANDERBILT UNIVERSITY · PI POLK, D BRENT · 1999 to 2020
$6.8M
Immunomodulatory effects of arginine supplementation in colitis and colon cancerR01AT004821 · NCCIH · VANDERBILT UNIVERSITY MEDICAL CENTER · PI WILSON, KEITH T. · 2008 to 2017
$4.0M
HPYLORI INDUCED DNA DAMAGE AND IMMUNE DYSREGULATIONR01DK053620 · NIDDK · VANDERBILT UNIVERSITY MEDICAL CENTER · PI WILSON, KEITH T. · 1997 to 2014
$3.4M
Targeted chemoprevention of gastric carcinogenesis in high risk populationsR01CA190612 · NCI · VANDERBILT UNIVERSITY MEDICAL CENTER · PI MORGAN, DOUGLAS, WILSON, KEITH T. · 2014 to 2018
$3.0M
Role of Claudin-2 in Inflammatory Diseases and Colon CancerR01DK088902 · NIDDK · VANDERBILT UNIVERSITY · PI SINGH, AMAR B · 2011 to 2015
$1.7M
Regulation of Claudin-1 mediated Colon Tumor Progression and MetastasisR01CA124977 · NCI · VANDERBILT UNIVERSITY · PI DHAWAN, PUNITA · 2007 to 2011
$1.6M
Role of claudin-1 in colon tumor progression and metastasisR21CA119005 · NCI · VANDERBILT UNIVERSITY · PI DHAWAN, PUNITA · 2006 to 2007
$229k
Role of Claudin-1 in Colon CancerI01BX002086 · VA · VETERANS HEALTH ADMINISTRATION · PI DHAWAN, PUNITA · 2013 to 2022
–
Arginine Availability and Metabolism in the Immune Evasion of H. pyloriI01BX001453 · VA · VETERANS HEALTH ADMINISTRATION · PI WILSON, KEITH T. · 2012 to 2019
–
BLRD VA I01 BX001453BLRD VA I01 BX002086NCCIH NIH HHS R01 AT004821NCI NIH HHS CA124977NCI NIH HHS P01 CA116087NCI NIH HHS P30 CA068485NCI NIH HHS P30CA68485NCI NIH HHS R01 CA124977NCI NIH HHS R01 CA190612NCI NIH HHS R21 CA119005NIDDK NIH HHS DK088902NIDDK NIH HHS P30 DK058404NIDDK NIH HHS P30DK058404NIDDK NIH HHS R01 DK053620NIDDK NIH HHS R01 DK056008NIDDK NIH HHS R01 DK088902
6 · The paper itself

Abstract

Expression of claudin-2, a tight junction protein, is highly upregulated during inflammatory bowel disease (IBD) and, due to its association with epithelial permeability, has been postulated to promote inflammation. Notably, claudin-2 has also been implicated in the regulation of intestinal epithelial proliferation. However, precise role of claudin-2 in regulating colonic homeostasis remains unclear. Here, we demonstrate, using Villin-Claudin-2 transgenic mice, that increased colonic claudin-2 expression augments mucosal permeability as well as colon and crypt length. Most notably, despite leaky colon, Cl-2TG mice were significantly protected against experimental colitis. Importantly, claudin-2 expression increased colonocyte proliferation and provided protection against colitis-induced colonocyte death in a PI-3Kinase/Bcl-2-dependent manner. However, Cl-2TG mice also demonstrated marked suppression of colitis-induced increases in immune activation and associated signaling, suggesting immune tolerance. Accordingly, colons from naive Cl-2TG mice harbored significantly increased numbers of regulatory (CD4(+)Foxp3(+)) T cells than WT littermates. Furthermore, macrophages isolated from Cl-2TG mouse colon exhibited immune anergy. Importantly, these immunosuppressive changes were associated with increased synthesis of the immunoregulatory cytokine TGF-β by colonic epithelial cells in Cl-2TG mice compared with WT littermates. Taken together, our findings reveal a critical albeit complex role of claudin-2 in intestinal homeostasis by regulating epithelial permeability, inflammation and proliferation and suggest novel therapeutic opportunities.

Indexed as

Gene Expression RegulationImmunity, InnateImmunity, MucosalAnimalsCaco-2 CellsClaudinsColitisHumansIntestinal MucosaMiceMice, TransgenicT-Lymphocytes, RegulatoryClaudinsCLDN2 protein, humanCldn2 protein, mouse

Identifiers

PMID24670427
PMCPMC4221190
OpenAlexW1977683874

What OpenQuestion holds

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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.