J Korean Med Sci.  2003 Feb;18(1):97-102. 10.3346/jkms.2003.18.1.97.

Eosinophil Inflammation of Nasal Polyp Tissue: Relationships with Matrix Metalloproteinases, Tissue Inhibitor of Metalloproteinase-1, and Transforming Growth Factor-beta1

Affiliations
  • 1Department of Allergy and Clinical Immunology, Ajou University School of Medicine, Suwon, Korea. hspark@madang.ajou.ac.kr
  • 2Department of Respiratory Medicine and Allergy, Soonchunhyang University Hospital, Seoul, Korea.

Abstract

Eosinophil and mast cell infiltrations are consistent findings in nasal polyp tissue. Previous studies have shown that matrix metalloproteinases (MMPs) may be involved in eosinophil infiltration in airway mucosa of asthmatic patients, and that transforming growth factor-beta1 (TGF-beta1) induces extracellular matrix deposition in nasal polyp tissue. The aim of this study was to evaluate the role of MMPs and tissue-inhibitor of metalloproteinase-1 (TIMP-1) in association with TGF-beta1, eosinophils and mast cell activation in nasal polyp tissue. Nasal polyp tissues from 20 patients who underwent polypectomies were collected and prepared into tissue homogenate. Eosinophil cationic protein (ECP) and tryptase levels were measured by CAP system (Pharmacia, Sweden). MMP-2, MMP-9, TIMP-1 and TGF-beta1 levels were measured by enzyme-liked immunosorbent assay. MMP-2 was the predominant form of MMPs, followed by MMP-9 and TIMP-1. There were significant correlations between ECP, and MMP-9, MMP-2, TGF-beta1 and tryptase, but not with TIMP-1. Significant correlations were noted between tryptase, and MMP-2, MMP-9, and TGF-beta1, but not with TIMP-1. Close correlations were noted between TGF-beta1, and MMP-9 and MMP-2, but not with TIMP-1. MMP-2, MMP-9, and TGF-beta1 may contribute to eosinophil and mast cell migrations into nasal polyp tissue.

Keyword

Nasal Polyps; Matrix Metalloproteinases; Tissue-Inhibitor of Metalloproteinase-1; Transforming Growth Factor beta; Eosinophils

MeSH Terms

Adult
Asthma/complications
Blood Proteins/analysis
Chemotaxis, Leukocyte
Eosinophilia/etiology
Eosinophilia/metabolism*
Eosinophilia/pathology
Eosinophils/physiology
Female
Gelatinase A/analysis
Gelatinase A/physiology*
Gelatinase B/analysis
Gelatinase B/physiology*
Human
Male
Mast Cells/physiology
Middle Aged
Nasal Polyps/chemistry*
Nasal Polyps/etiology
Nasal Polyps/pathology
Rhinitis/metabolism
Rhinitis/pathology
Ribonucleases*
Serine Endopeptidases/analysis
Tissue-Inhibitor of Metalloproteinase-1/analysis
Tissue-Inhibitor of Metalloproteinase-1/physiology*
Transforming Growth Factor beta/analysis
Transforming Growth Factor beta/physiology*

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