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  5. YAP 促進大腸直腸癌細胞上皮間質轉換以及腫瘤侵犯性
 
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YAP 促進大腸直腸癌細胞上皮間質轉換以及腫瘤侵犯性

Other Title
Elevation of YAP Promoting Epithelial-Mesenchymal Transition and Tumor Aggressiveness in Colorectal Cancer
Type
thesis
Date Issued
2017-06-28
Author(s)
凌祥曦
Advisor
林政緯
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:林政緯
口試委員:吳漢忠;何元順
中文關鍵字:大腸癌腸癌;YAP1;EMT;轉移;LBH589
英文關鍵字:Colon cancer;YAP1;EMT;Metastasis;LBH589
Abstract
大腸直腸癌是世界上第三常被診斷出的惡性腫瘤,在大腸癌直腸癌進展的過程中,腫瘤的轉移是造成大腸直腸癌預後惡化的主要原因之一。因此尋找潛在的轉移生物標記有利於大腸直腸癌患者的治療以及預後之改善。Yes-associated protein (YAP)最早被發現在調控器官發展中扮演重要的角色,最近則被發現在許多惡性腫瘤中有高度表現並誘導 epithelial-mesenchymal transition (EMT)相關基因表現的傾向。然而,YAP 在大腸直腸癌中是否會造成腫瘤轉移以及其機制並不是很清楚。因此我們希望去釐清 YAP 在其中所扮演的角色。為了評估 YAP 在大腸癌的影響,我們建立了一株轉移型大腸癌細胞株HCT-116LM。比起親代的HCT-116,HCT-116LM 確實展現出更強的細胞移動能力。不管是在細胞模式還是臨床資料我們也都觀察到 YAP 確實在大腸直腸癌中高度表現以及與 EMT signature 具有正相關性。此外我們還發現 YAP 能誘導 Glucose transporter 3(Glut3)的表現,進一步促進腫瘤
EMT 的現象與癌幹細胞特性的獲得。接著我們還發現 LBH589,一種廣效的 histone deacetylase inhibitor,具有潛力去標靶 YAP 並抑制 YAP 所誘發的 EMT 基因之表現。總結,YAP 在大腸直腸癌進展以及轉移的過程中扮演極重要的角色,可以作為癌症治療中的標靶對象。
URI
https://203.71.86.71/handle/123456789/57892

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