Increased tissue inhibitor of metalloproteinase-1 expression and inhibition of gelatinase A activity in buccal mucosal fibroblasts by arecoline as possible mechanisms for oral submucous fibrosis

doi:10.1016/S1368-8375(01)00045-8

中山醫學大學機構典藏 CSMUIR > 口腔醫學院 > 牙醫學系暨碩士班 > 期刊論文 > Item 310902500/18392

Please use this identifier to cite or link to this item: https://ir.csmu.edu.tw:8080/ir/handle/310902500/18392

Title:	Increased tissue inhibitor of metalloproteinase-1 expression and inhibition of gelatinase A activity in buccal mucosal fibroblasts by arecoline as possible mechanisms for oral submucous fibrosis
Authors:	Chang, Y.-C.;Yang, S.-F.;Tai, K.-W.;Chou, M.-Y.;Hsieh, Y.-S.
Keywords:	Arecoline;Buccal mucosal fibroblasts;Matrix metalloproteinases;Oral submucous fibrosis;Tissue inhibitors of metalloproteinases
Date:	2002
Issue Date:	2017-08-14T08:50:36Z (UTC)
ISSN:	1368-8375
Abstract:	Oral submucous fibrosis (OSF) is a pre-malignant fibrotic lesion of the mouth in areca quid chewers. It is probably a consequence of disturbances in the hemeostatic equilibrium between synthesis and degradation of extracellular matrix molecules (ECM). To date, there has been little research about the role of tissue inhibitors of metalloproteinase (TIMPs) and matrix metalloproteinases (MMPs) in the pathogenesis of OSF. In the present study, we examined the activity of TIMPs from cells cultured from OSF and normal buccal mucosa. OSF specimens were found to have higher TIMP-1 expression than normal buccal mucosal fibroblasts (BMFs) by Western blots. To verify whether arecoline, a major areca nut alkaloid, could affect TIMP or MMP production by human BMFs, Western blots and gelatine zymography were used. Arecoline was found to elevate TIMP-1 expression at the concentration level under 20 μg/ml in a dose-dependent manner. The amount of TIMP-1 was about 2.7 fold at a concentration level of 10 μg/ml compared with control. From gelatin zymograms, the main gelatinolytic proteinase secreted by the human BMFs was MMP-2, and only minimal amounts of MMP-9 could be detectable from zymogram. In addition, arecoline was found to inhibit MMP-2 secretion and production at the concentration level of 40 μg/ml. The gelatinolytic activity of MMP-2 was about 54% at a concentration level of 80 μg/ml compared with control. Taken together, it was found that arecoline acted not only as an inhibitor on gelatinolytic activity of MMP-2, but also a stimulator for TIMP-1 activity. These synergistic effects may contribute to the ECM components accumulation in the areca quid associated OSF. © 2002 Elsevier Science Ltd. All rights reserved.
URI:	http://dx.doi.org/10.1016/S1368-8375(01)00045-8 https://www.scopus.com/inward/record.uri?eid=2-s2.0-0036178708&doi=10.1016%2fS1368-8375%2801%2900045-8&partnerID=40&md5=9cd677d39ebc1195b06073b530b33a07 https://ir.csmu.edu.tw:8080/ir/handle/310902500/18392
Relation:	Oral Oncology 38 (2) ,195-200
Appears in Collections:	[牙醫學系暨碩士班] 期刊論文

Files in This Item:

There are no files associated with this item.

Loading...