Evidence map›Paper›PMID 16232214›Full record

ArticleClinical and experimental immunology2005

Abrogation of IFN-gamma mediated epithelial barrier disruption by serine protease inhibition.

L E M Willemsen, J P Hoetjes, S J H van Deventer, E A F van Tol

Open access · bronzeAbstract read
In one paragraph

Article in Clinical and experimental immunology, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
1.7field-weighted citation impact, top 16% 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

26 citing papers in PubMed, 51 citations in OpenAlex.

  1. Review
  2. Proteolytic Landscapes in Gastric Pathology and Cancerogenesis.International journal of molecular sciences · 2022
    Review
  3. Review
  4. Review
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  13. International journal of clinical and experimental pathology · 2017
    Article
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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 1 institution in 1 country.

L E M WillemsenNumico Research BV, Wageningen, the Netherlands.
J P Hoetjes
S J H van Deventer
E A F van Tol
Academic Medical Center · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The intestinal barrier function is often impaired in a variety of diseases including chronic inflammatory bowel disease. Increased intestinal permeability during episodes of active disease correlates with destruction or rearrangement of the tight junction protein complex. IFN-gamma has been widely studied for its effect on barrier function and tight junction structures but its mode of action remains unclear. Since the claudin family of tight junction proteins is proposed to be involved in barrier maintenance we studied the effect of IFN-gamma on claudin expression in relation to epithelial barrier function. Cycloheximide and protease inhibitors were used to study mechanisms of IFN-gamma mediated barrier disruption. Intestinal epithelial cells were exposed to IFN-gamma and permeability was evaluated by horse radish peroxidase (HRP) and 4 kD FITC-dextran fluxes. Occludin and claudin-1, -2, -3, and -4 tight junction protein expression was determined by Western blotting. Occludin and claudin-2 protein expression was dramatically reduced after IFN-gamma exposure, which correlated with increased permeability for HRP and FITC-dextran. Interestingly, cleavage of claudin-2 was observed after incubation with IFN-gamma. Serine protease inhibitor AEBSF completely abrogated IFN-gamma mediated barrier disruption which was associated with preservation of claudin-2 expression. Moreover, IFN-gamma induced loss of barrier integrity was found to affect claudin-2 and occludin expression through different mechanisms. Since inhibition of serine protease activity abrogates IFN-gamma mediated barrier disruption this may be an important target for therapeutic intervention.

Indexed as

Blotting, WesternCell LineClaudinsDose-Response Relationship, ImmunologicEpithelial CellsHumansInterferon-gammaIntestinal MucosaMembrane ProteinsOccludinPermeabilityRecombinant ProteinsSerine EndopeptidasesSerine Proteinase InhibitorsSulfonesTight Junctions4-(2-aminoethyl)benzenesulfonylfluorideClaudinsCLDN2 protein, humanInterferon-gammaMembrane ProteinsOccludinOCLN protein, humanRecombinant ProteinsSerine EndopeptidasesSerine Proteinase InhibitorsSulfones

Identifiers

PMID16232214
PMCPMC1809518
OpenAlexW2058806398

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.