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  5. 探討HMGA2之下游基因在大腸癌進程之調控機轉
 
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探討HMGA2之下游基因在大腸癌進程之調控機轉

Other Title
The Regulatory Mechanisms of HMGA2 Downstream Targets in Colon Cancer Tumorigenesis
Type
thesis
Date Issued
2017-06-26
Author(s)
劉厚賢
Advisor
卓爾婕
Subjects
系所名稱:藥學系(碩博士班)
Description
學位別:碩士
語文別:英文
指導教授:卓爾婕
口試委員:許惇偉;謝宜蓁
中文關鍵字:大腸直腸癌
英文關鍵字:colorectal cancers;HMGA2;WHSC1;C20orf7
Abstract
大腸直腸癌在全世界男性中發生率排行第三,女性中則排行第二名。雖然大腸直腸癌的治療有長足的進步,但對於晚期的病人來說,存活率仍然很低。因此,釐清大腸直腸癌的分子機轉是相當重要的。HMGA2是一種包含了三個AT-hook的區域的小型非組織蛋白,且有能力調控其它基因的轉錄。HMGA2在許多癌症已經被證實是一種致癌基因,但有關它下游標的與調控作用的探討非常少。
經由DNA微矩陣的分析,鑑定出和HMGA2表現呈正相關的下游基因,WHSC1以及C20orf7。我們進一步利用聚合酶連鎖反應、定量即時聚合酶鏈鎖反應和西方墨點法等實驗來確認DNA微矩陣的結果。此外,功能性的實驗結果顯示,當癌細胞中WHSC1及C20orf7的表現量下降時,都會使癌細胞的生長及活動力受到抑制。
綜合上述實驗數據,我們的結果顯示WHSC1和C20orf7的表現都有利於大腸癌細胞的生長,也推論HMGA2可能藉由調控WHSC1和C20orf7來促進大腸直腸癌的進程。在未來,持續深入探討WHSC1和C20orf7於癌細胞之調控機轉的相關研究,有潛力發展出癌症臨床生物標記或貢獻於大腸直腸癌的預防治療。
URI
https://203.71.86.71/handle/123456789/58014

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