Evidence map›Paper›PMID 20018751›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2009

Mast cells regulate homeostatic intestinal epithelial migration and barrier function by a chymase/Mcpt4-dependent mechanism.

Katherine R Groschwitz, Richard Ahrens, Heather Osterfeld, Michael F Gurish, Xiaonan Han, Magnus Abrink, Fred D Finkelman, Gunnar Pejler, Simon P Hogan

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 113 papers.

0numbers the graph read from it
0cells of the map it votes in
113citing papers in PubMed
–field-weighted citation impact
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

113 citing papers in PubMed.

  1. Review
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  6. Review
  7. Pleiotropic Mucosal Innate Immune Memory in the Gastrointestinal Tract.International journal of molecular sciences · 2025
    Review
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  11. Review
  12. Review
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53 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

9 authors.

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.
Richard Ahrens
Heather Osterfeld
Michael F Gurish
Xiaonan Han
Magnus Abrink
Fred D Finkelman
Gunnar Pejler
Simon P Hogan

Funding

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
Mast Cell-Mediated Intestinal PermeabilityF30DK082113 · NIDDK · CINCINNATI CHILDRENS HOSP MED CTR · PI GROSCHWITZ, KATHERINE · 2008 to 2010
$84k
NIAID NIH HHS R01 AI073553NIAID NIH HHS R01-AI 073553NIDDK NIH HHS F30 DK082113NIDDK NIH HHS F30-DK082113NIGMS NIH HHS T32 GM063483NIGMS NIH HHS T32-GM063483
6 · The paper itself

Abstract

Altered intestinal barrier function is postulated to be a central predisposing factor to intestinal diseases, including inflammatory bowel diseases and food allergies. However, the mechanisms involved in maintaining homeostatic intestinal barrier integrity remain undefined. In this study, we demonstrate that mice deficient in mast cells (Kit(W-sh/W-sh) [Wsh]) or mast cell chymase (Mcpt4(-/-)) have significantly decreased basal small intestinal permeability compared with wild-type (WT) mice. Altered intestinal barrier function was linked to decreased intestinal epithelial cell migration along the villus/crypt axis, altered intestinal morphology, and dysregulated claudin-3 crypt expression. Remarkably, engraftment of Wsh mice with WT but not Mcpt4(-/-) mast cells restored intestinal epithelial cell migration, morphology, and intestinal epithelial barrier function. Collectively, these findings identify a mechanism by which mast cells regulate homeostatic intestinal epithelial migration and barrier function.

Indexed as

AnimalsCaco-2 CellsCell MovementChymasesClaudin-3EpitheliumHomeostasisHumansIntestine, SmallIn Vitro TechniquesJejunumMast CellsMembrane ProteinsMiceMice, Inbred C57BLMice, KnockoutChymasesClaudin-3CLDN3 protein, humanCldn3 protein, mousemast cell protease 4Membrane ProteinsRecombinant ProteinsSerine Endopeptidases

Identifiers

PMID20018751
PMCPMC2799737

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.