中山醫學大學機構典藏 CSMUIR:Item 310902500/11332
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    題名: Increased plasminogen activator inhibitor-1/tissue type plasminogen activator ratio in oral submucous fibrosis.
    作者: Yang, SF
    Hsieh, YS
    Tsai, CH
    Chen, YJ
    Chang, YC
    貢獻者: 中山醫學大學
    日期: 2007
    上傳時間: 2015-07-15T10:22:27Z (UTC)
    ISSN: 1354-523X
    摘要: Abstract
    OBJECTIVE:
    Plasminogen activators and their inhibitors are thought to be key participants in the balance of proteolytic and antiproteolytic activities that regulate extracellular matrix (ECM) turnover. However, little is known about the expression of plasminogen/plasmin system at the site of oral submucous fibrosis (OSF).
    METHODS:
    We compared the activities of tissue type plasminogen activator (t-PA) and plasminogen activator inhibitor-1 (PAI-1) between fibroblasts derived from normal buccal mucosa and OSF by using an enzyme-linked immunosorbent assay. Furthermore, arecoline, a major areca nut alkaloid, was challenged with normal buccal mucosal fibroblasts (BMFs) to elucidate whether the activities of t-PA and PAI-1 could be affected by arecoline.
    RESULTS:
    Both t-PA and PAI-1 were found to be increased in OSF than in BMFs (P < 0.01). In addition, there was a statistically significant difference in PAI-1/t-PA ratio between OSF and BMF (P < 0.01). The addition of arecoline upregulated not only PAI-1, but also t-PA in BMFs (P < 0.05). In addition, the ratio between PAI-1 and t-PA was found to be significantly increased by a linear regression assay (P < 0.01).
    CONCLUSION:
    These results suggest that OSF caused by areca quid chewing may be the result of an imbalance in the plasminogen/plasmin system, the net result of which is increased deposition of ECM.
    URI: https://ir.csmu.edu.tw:8080/ir/handle/310902500/11332
    http://dx.doi.org/10.1111/j.1601-0825.2006.01272.x
    關聯: Oral Dis. 2007 Mar;13(2):234-8
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