Evidence map›Paper›PMID 22848704›Full record

ArticlePloS one2012

Probiotic bacteria regulate intestinal epithelial permeability in experimental ileitis by a TNF-dependent mechanism.

Daniele Corridoni, Luca Pastorelli, Benedetta Mattioli, Silviu Locovei, Dai Ishikawa, Kristen O Arseneau, Marcello Chieppa, Fabio Cominelli, Theresa T Pizarro

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 64 papers.

0numbers the graph read from it
0cells of the map it votes in
64citing papers in PubMed
6.4field-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

64 citing papers in PubMed, 113 citations in OpenAlex.

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  10. Therapeutic effects ofFrontiers in pharmacology · 2025
    Article
  11. Probiotics and the intestinal tight junction barrier function.Frontiers in cell and developmental biology · 2025
    Review
  12. Article
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  15. Article
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4 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

9 authors at 3 institutions in 2 countries.

Daniele CorridoniDivision of Gastroenterology and Liver Disease, Department of Medicine, Case Western Reserve University School of Medicine, Cleveland, Ohio, United States of America.
Luca Pastorelli
Benedetta Mattioli
Silviu Locovei
Dai Ishikawa
Kristen O Arseneau
Marcello Chieppa
Fabio Cominelli
Theresa T Pizarro
University School · USCase Western Reserve University · USGastroenterology Hospital "Saverio de Bellis" · IT

Funding

Ubiquitination Pathways Mediating Chronic Intestinal InflammationP01DK091222 · NIDDK · CASE WESTERN RESERVE UNIVERSITY · PI RODRIGUEZ-PALACIOS, ALEXANDER · 2011 to 2020
$16.5M
MECHANISMS OF EXPERIMENTAL CROHNS DISEASER01DK055812 · NIDDK · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI COMINELLI, FABIO · 1999 to 2019
$4.9M
CYTOKINES AND INFLAMMATORY BOWEL DISEASER01DK042191 · NIDDK · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI COMINELLI, FABIO, PIZARRO, THERESA TORRES · 1995 to 2022
$4.7M
CYTOKINES AND INFLAMMATORY BOWEL DISEASER37DK042191 · NIDDK · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI COMINELLI, FABIO · 1999 to 2009
$3.8M
Role of IL-18 in Crohn's Disease (CD)R01DK056762 · NIDDK · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI PIZARRO, THERESA TORRES · 2000 to 2009
$2.3M
Cytokines and Inflammatory Bowel DiseaseR56DK042191 · NIDDK · CASE WESTERN RESERVE UNIVERSITY · PI COMINELLI, FABIO · 2010 to 2010
$504k
Mechanisms of Experimental Crohn's DiseaseR56DK055812 · NIDDK · CASE WESTERN RESERVE UNIVERSITY · PI COMINELLI, FABIO, RODRIGUEZ-PALACIOS, ALEXANDER · 2021 to 2021
$403k
CYTOKINES AND INFLAMMATORY BOWEL DISEASER29DK042191 · NIDDK · UNIVERSITY OF SOUTHERN CALIFORNIA · PI COMINELLI, FABIO · 1990 to 1994
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NIDDK NIH HHS DK042191NIDDK NIH HHS DK055812NIDDK NIH HHS DK056762NIDDK NIH HHS DK091222NIDDK NIH HHS P01 DK091222NIDDK NIH HHS R01 DK042191NIDDK NIH HHS R01 DK055812NIDDK NIH HHS R01 DK056762NIDDK NIH HHS R37 DK042191NIDDK NIH HHS R56 DK042191NIDDK NIH HHS R56 DK055812
6 · The paper itself

Abstract

backgroundWe previously showed that the probiotic mixture, VSL#3, prevents the onset of ileitis in SAMP/YitFc (SAMP) mice, and this effect was associated with stimulation of epithelial-derived TNF. The aim of this study was to determine the mechanism(s) of VSL#3-mediated protection on epithelial barrier function and to further investigate the "paradoxical" effects of TNF in preventing SAMP ileitis.

methodsPermeability was evaluated in SAMP mice prior to the onset of inflammation and during established disease by measuring transepithelial electrical resistance (TEER) on ex vivo-cultured ilea following exposure to VSL#3 conditioned media (CM), TNF or VSL#3-CM + anti-TNF. Tight junction (TJ) proteins were assessed by qRT-PCR, Western blot, and confocal microscopy, and TNFRI/TNFRII expression measured in freshly isolated intestinal epithelial cells (IEC) from SAMP and control AKR mice.

resultsCulture with either VSL#3-CM or TNF resulted in decreased ileal paracellular permeability in pre-inflamed SAMP, but not SAMP with established disease, while addition of anti-TNF abrogated these effects. Modulation of the TJ proteins, claudin-2 and occludin, occurred with a significant decrease in claudin-2 and increase in occludin following stimulation with VSL#3-CM or TNF. TNF protein levels increased in supernatants of SAMP ilea incubated with VSL#3-CM compared to vehicle, while IEC-derived TNFR mRNA expression decreased in young, and was elevated in inflamed, SAMP versus AKR mice.

conclusionsOur data demonstrate that the previously established efficacy of VSL#3 in preventing SAMP ileitis is due to direct innate and homeostatic effects of TNF on the gut epithelium, modulation of the TJ proteins, claudin-2 and occludin, and overall improvement of intestinal permeability.

Indexed as

BacteriaAnimalsGene Expression RegulationHomeostasisIleitisIntestinal MucosaMicePermeabilityProbioticsReceptors, Tumor Necrosis FactorTight JunctionsTumor Necrosis Factor-alphaReceptors, Tumor Necrosis FactorTumor Necrosis Factor-alpha

Identifiers

PMID22848704
PMCPMC3405026
OpenAlexW2035314723

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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.