Expression of Matrix Metalloproteinase-2/-9 in Nasal Polyp and Antrochoanal Polyp.
- Author:
Jin Young KIM
1
;
Jin Hyoung CHUN
;
Hyun Jeong HONG
;
Hae Young KIM
;
Hyun Su KIM
;
Hye Rim PARK
Author Information
1. Department of Otorhinolaryngology-Head & Neck Surgery, College of Medicine, Hallym University, Anyang, Korea. entkjy@hallym.or.kr
- Publication Type:Original Article
- Keywords:
Nasal polyp;
Antrochoanal polyp;
MMP-2;
MMP-9
- MeSH:
Endothelium;
Immunohistochemistry;
Inflammation;
Matrix Metalloproteinase 2;
Mucous Membrane;
Nasal Polyps*;
Polyps*;
Turbinates
- From:Korean Journal of Otolaryngology - Head and Neck Surgery
2006;49(8):786-790
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
BACKGROUND AND OBJECTIVES: Nasal polyp (NP) and antrochoanal polyp (ACP) are soft tissue masses, featuring chronic inflammation and tissue remodeling. To elucidate the mechanism of tissue remodeling, we investigated the expressions of matrix metalloproteinase-2 (MMP-2) and MMP-9 in ACP and NP and compared them with normal inferior turbinate mucosa. SUBJECTS AND METHOD: Nasal samples, obtained from controls (n=10), from ACP (n=10) and from NP (n=13), were analysed by immunohistochemistry. MMP-2/-9 expression was identified in epithelial, endothelial, gland, inflammatory cells. We assessed MMP-2/-9 immunoreactivity of ACP and NP in comparison with the normal inferior turbinate. The number of immunostained inflammatory cells were determined. RESULTS: In ACP, compared with controls, the MMP-2 expression was increased in vessel endothelium, while the MMP-9 expression was increased in vessel endothelium and inflammatory cells. In NP, compared with controls, increased expression of MMP-9 was observed in gland and inflammatory cells. CONCLUSION: ACP showed increased expression of MMP-2/-9, while NP showed increased expression of MMP-9. It is concluded that MMP-2/-9 in ACP and MMP-9 in NP may play a role in tissue remodeling.
