Evidence map›Paper›PMID 21606592›Full record

ArticleThe Journal of clinical investigation2011

Colon-specific delivery of a probiotic-derived soluble protein ameliorates intestinal inflammation in mice through an EGFR-dependent mechanism.

Fang Yan, Hanwei Cao, Timothy L Cover, M Kay Washington, Yan Shi, LinShu Liu, Rupesh Chaturvedi, Richard M Peek, Keith T Wilson, D Brent Polk

Open access · greenAbstract read
In one paragraph

Article in The Journal of clinical investigation, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 190 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
190citing papers in PubMed, 2 pooled it
46.6field-weighted citation impact, top 1% 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

190 citing papers in PubMed, 2 syntheses or guidelines pooled it, 363 citations in OpenAlex.

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  12. Pharmaceuticals (Basel, Switzerland) · 2025
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  14. American journal of physiology. Gastrointestinal and liver physiology · 2025
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130 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors at 4 institutions in 2 countries.

Fang YanDivision of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Monroe Carell Jr. Children's Hospital at Vanderbilt, Nashville, Tennessee 37232-0696, USA. fang.yan@vanderbilt.edu
Hanwei Cao
Timothy L Cover
M Kay Washington
Yan Shi
LinShu Liu
Rupesh Chaturvedi
Richard M Peek
Keith T Wilson
D Brent Polk
VA Tennessee Valley Healthcare System · USVanderbilt University · USAgricultural Research Service · USMonroe Carell Jr. Children's Hospital · US

Funding

Tumor Immunology and Microenvironment Research ProgramP30CA068485 · NCI · VANDERBILT UNIVERSITY MEDICAL CENTER · PI MATTHEW J TYSKA · 1995 to 2026
$172.8M
Translational Analysis CoreP30DK058404 · NIDDK · VANDERBILT UNIVERSITY MEDICAL CENTER · PI RICHARD M. PEEK · 2002 to 2026
$29.9M
CYTOKINE REGULATION OF INTESTINAL EPITHELIAL RESTITUTIONR01DK056008 · NIDDK · VANDERBILT UNIVERSITY · PI POLK, D BRENT · 1999 to 2020
$6.8M
Regulation of intestinal development by a Lactobacillus GG-derived proteinR01DK081134 · NIDDK · VANDERBILT UNIVERSITY MEDICAL CENTER · PI YAN, FANG · 2009 to 2023
$4.7M
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
Probiotics regulate intestinal epithelial cell homeostasisK01DK065744 · NIDDK · VANDERBILT UNIVERSITY · PI YAN, FANG · 2004 to 2008
$564k
BRCA1 and estrogen signaling during tumorigenesisZ01DK056008 · NIDDK · NATIONAL INSTITUTE OF DIABETES AND DIGESTIVE AND KIDNEY DISEASES · PI DENG, CHUXIA · 2007 to 2008
$505k
Intramural NIH HHS Z01 DK056008NCCIH NIH HHS AT004821NCCIH NIH HHS AT004821-S1NCCIH NIH HHS R01 AT004821NCI NIH HHS CA 68485NCI NIH HHS P30 CA068485NIDDK NIH HHS DK053620NIDDK NIH HHS DK065744NIDDK NIH HHS DK081134NIDDK NIH HHS K01 DK065744NIDDK NIH HHS P30 DK058404NIDDK NIH HHS P30DK058404NIDDK NIH HHS R01 DK053620NIDDK NIH HHS R01 DK056008NIDDK NIH HHS R01 DK081134
6 · The paper itself

Abstract

Probiotic bacteria can potentially have beneficial effects on the clinical course of several intestinal disorders, but our understanding of probiotic action is limited. We have identified a probiotic bacteria-derived soluble protein, p40, from Lactobacillus rhamnosus GG (LGG), which prevents cytokine-induced apoptosis in intestinal epithelial cells. In the current study, we analyzed the mechanisms by which p40 regulates cellular responses in intestinal epithelial cells and p40's effects on experimental colitis using mouse models. We show that the recombinant p40 protein activated EGFR, leading to Akt activation. Activation of EGFR by p40 was required for inhibition of cytokine-induced apoptosis in intestinal epithelial cells in vitro and ex vivo. Furthermore, we developed a pectin/zein hydrogel bead system to specifically deliver p40 to the mouse colon, which activated EGFR in colon epithelial cells. Administration of p40-containing beads reduced intestinal epithelial apoptosis and disruption of barrier function in the colon epithelium in an EGFR-dependent manner, thereby preventing and treating DSS-induced intestinal injury and acute colitis. Furthermore, p40 activation of EGFR was required for ameliorating colon epithelial cell apoptosis and chronic inflammation in oxazolone-induced colitis. These data define what we believe to be a previously unrecognized mechanism of probiotic-derived soluble proteins in protecting the intestine from injury and inflammation.

Indexed as

Administration, RectalAnimalsApoptosisBacterial ProteinsColitisDextran SulfateDrug Evaluation, PreclinicalEnzyme ActivationEpithelial CellsErbB ReceptorsHydrogelsIntestinal MucosaLacticaseibacillus rhamnosusMiceMice, Inbred C57BLMicrospheresAkt1 protein, mouseBacterial ProteinsDextran SulfateEGFR protein, mouseErbB ReceptorsHydrogelsOxazolonep40 protein, Lactobacillus rhamnosusProto-Oncogene Proteins c-aktQuinazolinesRecombinant ProteinsRTKI cpdTyrphostins

Identifiers

PMID21606592
PMCPMC3104743
OpenAlexW2112213433

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.