Cited by 96Inflammatory Bowel DiseaseMast cells and histamineProtease and Inhibitor Mechanisms

The DOI matches its Crossref record; 28 of the 29 references it cites were found in a registry or an index.

Expression of Protease-Activated Receptor 2 in Ulcerative Colitis

Abstract

Although tryptase released from mast cells might play a key role in the pathogenesis of ulcerative colitis (UC), the role of protease-activated receptor 2 (PAR2), tryptase receptor, remains unclear in the pathogenesis of this disease. The expressions of PAR2 and tumor necrosis factor (TNF) alpha in nine UC tissues and nine normal tissues were examined by immunohistochemistry. TNF-alpha levels secreted from human leukemic mast cell line (HMC-1) after the treatment of PAR2 agonists were also measured by enzyme-linked immunosorbent assay. The PAR2 and TNF-alpha proteins were more significantly detectable in UC tissues than in normal tissues. Furthermore, 65.2% of PAR2+ cells and 66.4% of TNF-alpha+ cells in UC tissues were tryptase-positive cells. In other words, 60.6% and 46.3% of tryptase-positive cells in UC tissues were PAR2+ cells and TNF-alpha+ cells, respectively. A chi2 analysis showed correlation (p < 0.007) between PAR2 and TNF-alpha in tryptase-positive mast cells. Moreover, PAR2 agonists significantly induced the TNF-alpha secretion from HMC-1. These results indicate that the activation of the mast cells through PAR2 may be involved in the pathogenesis of UC.

Overview

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Crossref · 10.1097/00054725-200307000-00002

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28 of 28 references verified0 citation errors · 0 not checkable

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Citations

Cites

Research works printed but not linked: 5

  1. Braegger, 1994, Ann Allergy, 72, 135
  2. Macfarlane, 2001, Pharmacol Rev, 53, 245
  3. Bischoff, 1999, Gut, 44, 643, 10.1136/gut.44.5.643 · DOI
  4. Duche, 1999, Presse Med, 28, 1955
  5. He, 1998, J Pharmacol Exp Ther, 286, 289

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Metadata

Authors
Kim, J.-A., Choi, S.-C., Yun, K.-J., Kim, D.-K., Han, M.-K., Seo, G.-S., Yeom, J.-J., Kim, T.-H., Nah, Y.-H., & Lee, Y.-M.
Affiliations
  • Wonkwang University (KR)
  • Jeonbuk National University (KR)
Corresponding author
Han, Myung-Kwan
Venue
Inflammatory Bowel Diseases
Published
2003-07
Volume
9
Issue
4
Pages
224-229
ISSN
1078-0998 (ISSN-L)
OpenAlex
W2065903707
Cited by
96
References
29
Citations by year
2026: 2 · 2025: 1 · 2024: 3 · 2023: 2 · 2022: 2 · 2021: 4 · 2020: 2 · 2019: 3 · 2018: 2 · 2017: 1 · 2016: 3 · 2015: 1 · 2014: 9 · 2013: 1 · 2012: 4
FWCI
3.88
Type
journal article
Language
en
Open access
closed
Locations
  • Inflammatory Bowel Diseases (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Gastroenterology › Inflammatory Bowel Disease
  • Life Sciences › Immunology and Microbiology › Immunology › Mast cells and histamine
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Protease and Inhibitor Mechanisms
Keywords
protease-activated receptor 2, ulcerative colitis
MeSH terms
Colitis, Ulcerative, Gene Expression Regulation, Humans, Immunohistochemistry, Leukemia, Macrophages, Mast Cells, Tumor Cells, Cultured, Tumor Necrosis Factor-alpha, Receptors, Thrombin, Receptor, PAR-2

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