Evidence map›Paper›PMID 23306080›Full record

ArticleAmerican journal of physiology. Gastrointestinal and liver physiology2013

Chymase-mediated intestinal epithelial permeability is regulated by a protease-activating receptor/matrix metalloproteinase-2-dependent mechanism.

Katherine R Groschwitz, David Wu, Heather Osterfeld, Richard Ahrens, Simon P Hogan

Open access · greenAbstract read
In one paragraph

Article in American journal of physiology. Gastrointestinal and liver physiology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed
3.1field-weighted citation impact, top 8% 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

42 citing papers in PubMed, 76 citations in OpenAlex.

  1. Review
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  7. Role of Mast Cells in Eosinophilic Gastrointestinal Diseases.Immunology and allergy clinics of North America · 2024
    Review
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  20. Mast Cell Chymase and Kidney Disease.International journal of molecular sciences · 2020
    Review
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

5 authors at 2 institutions in 1 country.

Katherine R GroschwitzDivision of Allergy and Immunology, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH 45229, USA.
David Wu
Heather Osterfeld
Richard Ahrens
Simon P Hogan
Cincinnati Children's Hospital Medical Center · USUniversity of Cincinnati · US

Funding

Stem Cell/Organoid and Genome Editing CoreP30DK078392 · NIDDK · CINCINNATI CHILDRENS HOSP MED CTR · PI Theresa Alenghat · 2007 to 2026
$24.4M
Medical Scientist Training ProgramT32GM063483 · NIGMS · UNIVERSITY OF CINCINNATI · PI KHURANA HERSHEY, GURJIT K. · 2002 to 2022
$6.7M
Interleukin-9 In Experimental Intestinal AnaphylaxisR01AI073553 · NIAID · CINCINNATI CHILDRENS HOSP MED CTR · PI HOGAN, SIMON PATRICK · 2008 to 2011
$1.5M
Eosinophil:M2 Macrophage:CCL11 Axis in Experimental Colitis and Pediatric CorticoR01DK090119 · NIDDK · CINCINNATI CHILDRENS HOSP MED CTR · PI HOGAN, SIMON PATRICK · 2012 to 2015
$1.3M
Mast Cell-Mediated Intestinal PermeabilityF30DK082113 · NIDDK · CINCINNATI CHILDRENS HOSP MED CTR · PI GROSCHWITZ, KATHERINE · 2008 to 2010
$84k
NIAID NIH HHS R01-AI-073553NIDDK NIH HHS F30-DK-082113NIDDK NIH HHS P30 DK078392NIDDK NIH HHS R01 DK090119NIDDK NIH HHS T30-DK-078392NIGMS NIH HHS T32-GM-063483
6 · The paper itself

Abstract

Mast cells regulate intestinal barrier function during disease and homeostasis. Secretion of the mast cell-specific serine protease chymase regulates homeostasis. In the present study, we employ in vitro model systems to delineate the molecular pathways involved in chymase-mediated intestinal epithelial barrier dysfunction. Chymase stimulation of intestinal epithelial (Caco-2 BBe) cell monolayers induced a significant reduction in transepithelial resistance, indicating decreased intestinal epithelial barrier function. The chymase-induced intestinal epithelial barrier dysfunction was characterized by chymase-induced protease-activated receptor (PAR)-2 activation and matrix metalloproteinase (MMP)-2 expression and activation. Consistent with this observation, in vitro analysis revealed chymase-induced PAR-2 activation and increased MAPK activity and MMP-2 expression. Pharmacological and small interfering RNA-mediated antagonism of PAR-2 and MMP-2 significantly attenuated chymase-stimulated barrier dysfunction. Additionally, the chymase/MMP-2-mediated intestinal epithelial dysfunction was associated with a significant reduction in the tight junction protein claudin-5, which was partially restored by MMP-2 inhibition. Finally, incubation of Caco-2 BBe cells with chymase-sufficient, but not chymase-deficient, bone marrow-derived mast cells decreased barrier function, which was attenuated by the chymase inhibitor chymostatin. Collectively, these results suggest that mast cell/chymase-mediated intestinal epithelial barrier function is mediated by PAR-2/MMP-2-dependent pathways.

Indexed as

AnimalsBone Marrow CellsCaco-2 CellsChymasesClaudin-5Fluorescent Antibody TechniqueHumansIntestinal MucosaLentivirusMast CellsMatrix Metalloproteinase 2MiceMice, Inbred C57BLMice, KnockoutPermeabilityReceptor, PAR-2ChymasesClaudin-5Matrix Metalloproteinase 2Receptor, PAR-2

Identifiers

PMID23306080
PMCPMC3602679
OpenAlexW2137077583

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.