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  5. 骨橋蛋白調控子宮內膜細胞的移行及入侵功能
 
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骨橋蛋白調控子宮內膜細胞的移行及入侵功能

Other Title
Osteopontin-modulated endometrial cell migration and invasion
Type
thesis
Date Issued
2010-01-07
Author(s)
謝怡娟
Advisor
高淑慧
Subjects
系所名稱:醫學科學研究所
Description
學位別:碩士
語文別:中文
指導教授:高淑慧
共同指導教授:
口試委員:曾啟瑞;陳玫潔;趙湘台;李進成
中文關鍵字:子宮內膜異位症;骨橋蛋白;移行作用;入侵作用
Abstract
子宮內膜異位症(Endometriosis)是婦產科常見的疾病,好發於生育年齡的年輕女性會伴隨不孕症狀。此症發現在子宮腔以外出現相似子宮內膜腺體上皮細胞(glandular epithelium)及基質細胞(stromal cell)的生長,在臨床及體外試驗指出子宮內膜細胞具有入侵功能及轉移生長能力,但目前發病過程及機轉仍不清楚。近期有研究指出患有子宮內膜異位病患的血漿及子宮內膜異位組織皆有表現大量骨橋蛋白(osteopontin, OPN)。OPN為細胞外間質組成的成份,OPN可與細胞表面的接受器交互作用,並且具有調節細胞貼附、移行、分化、存活、免疫及血管新生等功能。本實驗室先前發現在患有子宮內膜異位症的患者,產生異位組織的OPN表現增加。OPN添加培養子宮內膜細胞,觀察到細胞移行及入侵能力會隨著濃度及時間增加而明顯增強。本研究為了釐清OPN是藉由何種分子機制調控細胞移行。我們建構了攜帶OPN基因及OPN siRNA的載體,並且選殖轉染子宮內膜HEC-1A細胞,進行OPN over-expression及knockdown實驗。並且以Scratch wound healing assay, matrigel invasion assay, MTS assay及 gelatin-zymography 方法分析細胞移行、入侵、增生及MMP 活性。並且以Wortmannin (PI3K抑制劑), caffeic acid phenethyl ester (CAPE, NF-kB抑制劑)及anti-αvβ3抗體探究OPN所調控的訊息路徑。結果發現OPN所引發產生細胞移行、入侵、及MMP 活化及actin重塑(remodeling)是經由αvβ3 integrin進而活化PI3K/NF-kB的訊息路徑。並且發現OPN可以透過活化PI3K/NF-kB的訊息分子使細胞增生。另一方面,我們發現OPN會增加ATP生成可能與供應細胞移行能量有關。以IVIS非侵入性活體影像偵測系統偵測小鼠活體內子宮內膜異位生長細胞情形,我們發現OPN會增加及延長活體內冷光表現。未來藉由釐清其分子調控機轉尋求出以抑制OPN作用的抑制劑,再應用於治療子宮內膜異位症。
URI
https://203.71.86.71/handle/123456789/13284

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