Evidence map›Paper›PMID 24662742›Full record

ArticlePloS one2014

Interleukin-6 modulation of intestinal epithelial tight junction permeability is mediated by JNK pathway activation of claudin-2 gene.

Rana Al-Sadi, Dongmei Ye, Michel Boivin, Shuhong Guo, Mariam Hashimi, Lisa Ereifej, Thomas Y Ma

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 155 papers.

0numbers the graph read from it
0cells of the map it votes in
155citing papers in PubMed
9.7field-weighted citation impact, top 2% 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

155 citing papers in PubMed, 257 citations in OpenAlex.

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  5. The gut-lung axis in early life: microbiome-associated mechanisms and clinical relevance.European respiratory review : an official journal of the European Respiratory Society · 2026
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  11. Frontiers in microbiology · 2026
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95 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

7 authors at 2 institutions in 1 country.

Rana Al-SadiDepartment of Internal Medicine, University of New Mexico School of Medicine, Albuquerque, New Mexico, United States of America; Albuquerque Veterans Affairs Medical Center, Albuquerque, New Mexico, United States of America.
Dongmei YeDepartment of Internal Medicine, University of New Mexico School of Medicine, Albuquerque, New Mexico, United States of America.
Michel BoivinDepartment of Internal Medicine, University of New Mexico School of Medicine, Albuquerque, New Mexico, United States of America.
Shuhong GuoDepartment of Internal Medicine, University of New Mexico School of Medicine, Albuquerque, New Mexico, United States of America; Albuquerque Veterans Affairs Medical Center, Albuquerque, New Mexico, United States of America.
Mariam HashimiDepartment of Internal Medicine, University of New Mexico School of Medicine, Albuquerque, New Mexico, United States of America.
Lisa EreifejDepartment of Internal Medicine, University of New Mexico School of Medicine, Albuquerque, New Mexico, United States of America.
Thomas Y MaDepartment of Internal Medicine, University of New Mexico School of Medicine, Albuquerque, New Mexico, United States of America; Albuquerque Veterans Affairs Medical Center, Albuquerque, New Mexico, United States of America.
University of New Mexico · USRaymond G. Murphy VA Medical Center · US

Funding

Interleukin-1 Beta Modulation of Intestinal Tight Junction BarrierR01DK081429 · NIDDK · UNIVERSITY OF NEW MEXICO HEALTH SCIS CTR · PI MA, THOMAS Y · 2009 to 2012
$1.4M
NIDDK NIH HHS R01 DK081429NIDDK NIH HHS R0 1-DK-81429-03
6 · The paper itself

Abstract

Defective intestinal epithelial tight junction (TJ) barrier has been shown to be a pathogenic factor in the development of intestinal inflammation. Interleukin-6 (IL-6) is a pleiotropic, pro-inflammatory cytokine which plays an important role in promoting inflammatory response in the gut and in the systemic circulation. Despite its key role in mediating variety inflammatory response, the effect of IL-6 on intestinal epithelial barrier remains unclear. The purpose of this study was to investigate the effect of IL-6 on intestinal epithelial TJ barrier and to delineate the intracellular mechanisms involved using in-vitro (filter-grown Caco-2 monolayers) and in-vivo model (mouse intestinal perfusion) systems. Our results indicated that IL-6 causes a site-selective increase in Caco-2 intestinal epithelia TJ permeability, causing an increase in flux of small-sized molecules having molecular radius <4 Å. The size-selective increase in Caco-2 TJ permeability was regulated by protein-specific increase in claudin-2 expression. The IL-6 increase in TJ permeability required activation of JNK signaling cascade. The JNK pathway activation of AP-1 resulted in AP-1 binding to its binding sequence on the claudin-2 promoter region, leading to promoter activation and subsequent increase in claudin-2 gene transcription and protein synthesis and TJ permeability. Our in-vivo mouse perfusion showed that IL-6 modulation of mouse intestinal permeability was also mediated by AP-1 dependent increase in claudin-2 expression. In conclusion, our studies show for the first time that the IL-6 modulation of intestinal TJ permeability was regulated by JNK activation of AP-1 and AP-1 activation of claudin-2 gene.

Indexed as

AnimalsCaco-2 CellsClaudin-2HumansInterleukin-6Intestinal MucosaIntracellular SpaceJNK Mitogen-Activated Protein KinasesMAP Kinase Signaling SystemMicePermeabilityTight JunctionsTranscriptional ActivationTranscription Factor AP-1Claudin-2Interleukin-6JNK Mitogen-Activated Protein KinasesTranscription Factor AP-1

Identifiers

PMID24662742
PMCPMC3963839
OpenAlexW2126506597

What OpenQuestion holds

Textmetadata
LicenceCC0
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.