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  5. 卵巢亮細胞癌中腫瘤抑制基因SFRP基因啟動子甲基化之分析
 
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卵巢亮細胞癌中腫瘤抑制基因SFRP基因啟動子甲基化之分析

Other Title
Analysis of the methylation status of the SFRP genes in ovarian clear cell carcinoma
Type
thesis
Date Issued
2009-06-30
Author(s)
蘇立欣
Advisor
張淑芬
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:張淑芬
共同指導教授:
口試委員:何志明;胡孟君;陳瑞明;黃彥華
中文關鍵字:卵巢亮細胞癌;SFRP5;細胞生長速度;細胞移行
Abstract
腫瘤抑制基因啟動子高度甲基化是造成基因不正常表現的機制之一。SFRPs (secreted frizzled-related proteins) 是細胞外的分子能拮抗Wnt訊息傳遞。本研究針對在台灣發生率佔卵巢癌12%的卵巢亮細胞癌探討SFRP基因群啟動子甲基化的情形以了解此種癌症形成的分子機制。結果顯示SFRP5基因啟動子甲基化在卵巢亮細胞癌檢體中的比例為42% (5/12) ,在卵巢亮細胞癌細胞株的比例為100% (5/5) ,但於良性卵巢囊腫檢體的比例為0% (0/15) ,漿液性卵巢癌檢體的比例為20% (3/15) 。而SFRP1啟動子只有在40% (2/5) 的卵巢亮細胞癌細胞株呈現甲基化的情形,於卵巢亮細胞癌檢體、良性卵巢囊腫檢體及漿液性卵巢癌檢體SFRP1啟動子都是沒有甲基化。以正常淋巴球細胞中的SFRP5表現量為基準,在測試的卵巢亮細胞癌細胞株中有80% (4/5) 有SFRP5的表現。且以去甲基藥物5’-aza-2’-deoxycytidine (5-aza-dC) 處理十五天後,SFRP5的mRNA在卵巢亮細胞癌細胞株中有60% (3/5) 會上升。SFRP1在卵巢亮細胞癌細胞株有40% (2/5) 是沒有表現,但在去甲基藥物處理十五天後,SFRP1的表現量並無差異。此外,實驗結果也顯示加入去甲基藥物,可以抑制卵巢亮細胞癌細胞株的生長速度 (cell proliferation) 及移行能力 (migration) 。
URI
https://203.71.86.71/handle/123456789/12998
https://hdl.handle.net/11296/4t4324
File(s)
No Thumbnail Available
Name

C0191331.pdf

Size

8.28 MB

Format

Adobe PDF

Checksum

(MD5):a632e3887e75c1eddd83c3870c9b8d6c

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