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論文種別 原著 
記述言語 英文 
表題 Emdogain stimulates matrix degradation by osteoblasts 
掲載誌名 Journal of Dental Research  (ISSN:00220345/15440591)
巻(号):頁 87(8):782-787
著者・共著者名 Goda S, Inoue H, Kaneshita Y, Nagano Y, Ikeo T, Iida J, Domae N 
発行年月 2008/08 
概要 Emdogain has been used clinically for periodontal regeneration, although the underlying molecular mechanisms are not clear at present. In this study, we hypothesized that Emdogain stimulated degradation of type I collagen via osteoblasts. We showed that Emdogain enhanced cell-mediated degradation of type I collagen in an MMP-dependent manner. Although MG-63 cells spontaneously produced a zymogen form of MMP-1, treatment with Emdogain significantly induced the generation of the active form of this enzyme. We demonstrated that MMP-3 was produced from MG63 cells in response to Emdogain in a MEK1/2-dependent manner. Concomitantly, blocking of MEK1/2 activation by U0126 significantly inhibited the generation of the active form of MMP-1 without affecting the total production of this collagenase. These results suggest that Emdogain facilitates tissue regeneration through the activation of the collagenase, MMP-1, that degrades matrix proteins in bone tissue microenvironments. 
DOI