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應用基因微陣列技術探討口腔黏膜下纖維化症之基因表現

Application of DNA Microarray Technique for Gene Expression Analysis in Oral Submucous Fibrosis

摘要


口腔黏膜下纖維化症的病因目前仍是眾說紛紜,莫衷一是。近年來由於基因微陣列技術之發展,使得研究細胞內基因表現的效率增加甚多。透過此技術可以在單一的基因微陣列實驗中對於基因表現之差異作快速且整體性的觀察。本研究之目的即在探討口腔黏膜下纖維化組織與正常組織之基因表現圖譜差異,此種實驗尚未有人報告。我們以點製有7,597個人類已知基因之基因微陣列為工具,分別比較口腔黏膜下纖維化組織和正常組織的基因表現差異。結果顯示,於正常組織及口腔黏膜下纖維化組織比較中,有316個基因表現上升、28個基因表現下降,其中有54個表現增加的基因亦參與了全身其他部位纖維化之過程。其中細胞激素、細胞膜蛋白、細胞骨架、轉錄因子、胞內酵素及細胞週期相關分子等基因與纖維化可能有密切關係。經由本研究提供我們對口腔黏膜下纖維化症之致病基因的總體觀察,並對口腔黏膜下纖維化症之分子致病機轉提供新的思考方向。

並列摘要


In order to explore the molecular mechanisms of the oral submucous fibrosis, we compared the gene expression profile between the normal oral tissues and oral submucous fibrosis tissue by using cDNA microarray consisting 7597 known human genes. The results revealed significant change in 344 genes, with 316 genes being up-regulated and 28 genes being down-regulated. The list of these genes includes the categorization of membrane proteins, cytokines, cytoskeletons, transcription factors, enzymes, and cell cycle associated factors. These findings provided a large body of information regarding gene expression profiles associated with oral submucous fibrosis pathogenesis, and may also represent the potential targets for diagnostic and therapeutic utilization in oral submucous fibrosis. Further justification of these genes by screening more cases is necessary for future applications.

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