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Bibliographic Record
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- Material Type
- 文書・図像類
- Author/Editor
- 中村, 典史
- Author Heading
- Publication, Distribution, etc.
- Alternative Title
- Molecular analysis on the intercellular signaling relating to the bone destruction of ameloblastoma
- Text Language Code
- jpn
- Target Audience
- 一般
- Note (General)
- 2011-2013年度科学研究費助成事業（基盤研究（C））研究成果報告書 課題番号：23592929 研究代表者：中村典史（鹿児島大学・医歯（薬）学総合研究科・教授）口腔粘膜上皮細胞由来の不死化細胞株（MOE-1）と濾胞型エナメル上皮腫細胞由来の不死化細胞株（AM-3）を作成し、既存の網状型エナメル上皮腫由来不死化細胞株AM-1と生物学的特性を比較した。AM-3はAm-1と類似の増殖態度、上皮系マーカーの発現を呈した。AM-1, AM-3はMOE-1よりMMP-2, -9の発現、Wnt関連遺伝子Wnt-5aやその受容体の発現が多かった。また、AM-3ではWnt-3a刺激によってMMP-9の発現が上昇することが観察された。これらのことから、エナメル上皮腫の局所浸潤性は、Wntシグナル経路を介したMMPの発現によって制御されていることが示唆された。Immortalized epithelial cell line derived from oral mucosa (MOE-1), as control, and immortalized ameloblastoma cell line derived from follicular-type ameloblastoma (AM-3) were established and their biological characteristics were compared to AM-1, previously established immortalized ameloblastoma cells derived from prexiform-type ameloblastoma. AM-1 and AM-3 demonstrated positive reaction to the epithelial markers and negative to the mesenchymal one maintaining the morphological characteristics of the epithelial cell. Expressions of MMP-2 and MMP-9 were significantly higher in AM-1 and AM-3 than MOE-1. Wnt-5a and Wnt signaling receptors, LRP and Frizzled, of both AM-1 and AM-3 were higher than MOE-1 in the mRNA level. Furthermore, expression and activity of MMP-9 in AM-3 increased dose- and time-dependently when stimulated with Wnt-3a protein. These results suggested that local invasiveness of ameloblastoma may be regulated by MMPs expression through the Wnt signaling pathway.