Evidence map›Paper›PMID 25838982›Full record

ArticleTissue barriers2015

Claudin-2 as a mediator of leaky gut barrier during intestinal inflammation.

J Luettig, R Rosenthal, C Barmeyer, J D Schulzke

Open access · bronzeAbstract read
In one paragraph

Article in Tissue barriers, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 174 papers.

0numbers the graph read from it
0cells of the map it votes in
174citing papers in PubMed
10.2field-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

174 citing papers in PubMed, 258 citations in OpenAlex.

  1. Trial
  2. Article
  3. mSphere · 2026
    Article
  4. Review
  5. Review
  6. Article
  7. Article
  8. Article
  9. Temporal transcriptomic profiling identifies core regulators in cytokine-induced gut barrier disruption in differentiated Caco-2 cells.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2026
    Article
  10. Article
  11. Review
  12. Metabolite mimicry identifies butyrate analogs with select protective functions in the intestinal mucosa.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  13. Review
  14. Article
  15. Review
  16. Article
  17. Article
  18. Age-Related Transcriptomic Changes in the Vermiform Appendix.International journal of molecular sciences · 2025
    Article
  19. Article
  20. Article

114 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

4 authors at 3 institutions in 3 countries.

J LuettigInstitute of Clinical Physiology; Department of Gastroenterology; Charité ; Berlin, Germany.
R RosenthalInstitute of Clinical Physiology; Department of Gastroenterology; Charité ; Berlin, Germany.
C BarmeyerInstitute of Clinical Physiology; Department of Gastroenterology; Charité ; Berlin, Germany.
J D SchulzkeInstitute of Clinical Physiology; Department of Gastroenterology; Charité ; Berlin, Germany.
Charité - Universitätsmedizin Berlin · DECzech Academy of Sciences, Institute of Physiology · CZIstituto di Fisiologia Clinica · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The epithelial tight junction determines the paracellular water and ion movement in the intestine and also prevents uptake of larger molecules, including antigens, in an uncontrolled manner. Claudin-2, one of the 27 mammalian claudins regulating that barrier function, forms a paracellular channel for small cations and water. It is typically expressed in leaky epithelia like proximal nephron and small intestine and provides a major pathway for the paracellular transport of sodium, potassium, and fluid. In intestinal inflammation (Crohn's disease, ulcerative colitis), immune-mediated diseases (celiac disease), and infections (HIV enteropathy), claudin-2 is upregulated in small and large intestine and contributes to diarrhea via a leak flux mechanism. In parallel to that upregulation, other epithelial and tight junctional features are altered and the luminal uptake of antigenic macromolecules is enhanced, for which claudin-2 may be partially responsible through induction of tight junction strand discontinuities.

Indexed as

AP, activator proteinCARD15, caspase recruitment domain-containing protein 15celiac diseaseclaudin-2Crohn's diseaseDSS, dextran sodium sulfateECL, extracellular loopERK, extracellular-regulated kinasegp, glycoproteinHIVHIV, human immunodeficiency virusHNF, hepatocyte nuclear factorIBD, inflammatory bowel diseaseIFN, interferonIFNγIL, interleukininflammatory bowel diseaseJAM, junctional adhesion moleculeJNK, c-jun N-terminal kinaseLPS, lipopolysaccharidesMAPK, mitogen-activated protein kinaseMDCK, Madine Darby canine kidneyMLC, myosin light chainNFκB, nuclear factor kappa BNOD2, nucleotide-binding oligomerization domain-containing protein 2PI3K, phosphatidyl-inositol-3-kinaseRho, ras homologROCK, Rho kinaseSTAT, signal transducers and activators of transcriptionTat, trans-activator of transcriptionTEER, transepithelial electrical resistancetight junctionTJ, tight junctionTNBS, 2,4,6-trinitrobenzene sulfonic acidTNF, tumor necrosis factorTNFαulcerative colitisVpr, viral protein r; ZO, zonula occludens

Identifiers

PMID25838982
PMCPMC4372021
OpenAlexW2100093202

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.