Fibulin-3 is associated with tumour progression and a poor prognosis in nasopharyngeal carcinomas and inhibits cell migration and invasion via suppressed AKT activity

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题名:	Fibulin-3 is associated with tumour progression and a poor prognosis in nasopharyngeal carcinomas and inhibits cell migration and invasion via suppressed AKT activity
作者:	Hwang,CF;Chien,CY;Huang,SC;Yin,YF;Huang,CC;Fang,FM;Tsai,HT;Su,LJ;Chen,CH
贡献者:	系統生物與生物資訊研究所
关键词:	EPSTEIN-BARR-VIRUS;CANCER-CELLS;BREAST-CANCER;LUNG-CANCER;EXPRESSION;METASTASIS;MOTILITY;PATHWAY;EFEMP1;LINES
日期:	2010
上传时间:	2012-03-27 18:20:30 (UTC+8)
出版者:	國立中央大學
摘要:	Nasopharyngeal carcinoma (NPC) is known for its highly metastatic character. Recent advances in diagnosis and treatment have not improved the high mortality rate that is attributable to early metastasis. Although several biomarkers correlate with metastasis and prognosis, the molecular mechanisms of NPC development and progression remain unclear. We demonstrate comprehensively that fibulin-3 is down-regulated in NPC. Loss of fibulin-3 expression is significantly correlated with advanced tumour and lymph node-metastasis stages, and indicates a poor 5-year survival rate. Functionally, fibulin-3 has the ability to suppress cell migration and invasion in NPC cancer cells by decreasing the activity of phospho-AKT. Conversely, its depletion by fibulin-3-mediated siRNAs may elevate phospho-AKT activity and significantly enhance the ability of NPC cancer cells to migrate and invade. Consistent with this negative association between fibulin-3 and phospho-AKT, their expression levels are inversely correlated in NPC specimens by immunohistochemical analysis. Thus, lower fibulin-3 expression is an important indicator of poor survival. It may also contribute to the development of new therapeutic strategies to block the PI3K/AKT pathway in NPC cancer cells. Copyright (C) 2010 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.
關聯:	JOURNAL OF PATHOLOGY
显示于类别:	[系統生物與生物資訊研究所] 期刊論文

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