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  5. 合成以吲哚為基礎之氮-羥基肉桂酸醯胺作為組蛋白去乙醯酶抑制劑
 
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合成以吲哚為基礎之氮-羥基肉桂酸醯胺作為組蛋白去乙醯酶抑制劑

Other Title
Synthesis of Indole-Based N-Hydroxycinnamide as Inhibitors of Histone Deacetylase
Type
thesis
Date Issued
2011-06-16
Author(s)
李欣穎
Advisor
黃偉展
Subjects
系所名稱:生藥學研究所
Description
學位別:碩士
語文別:中文
指導教授:黃偉展
共同指導教授:
口試委員:張崇毅;忻凌偉;林若凱
中文關鍵字:組蛋白去乙醯酶抑制劑;癌症;合成;吲哚肉桂酸醯胺
Abstract
組蛋白去乙醯酶抑制劑為目前癌症標靶治療研究發展趨勢之一,其化學結構主要分為三部份:與鋅產生螯合之基團、疏水性鏈長以及疏水性辨認部位。本研究主要合成以吲哚為基礎之氮-羥基肉桂酸醯胺作為組蛋白去乙醯酶抑制劑。

以氮-羥基肉桂酸醯胺為模板,在不同之取代位向藉由不同碳鏈長度結合不同取代基之吲哚環,合成系列化合物6a-6i、6j-6k及10、15,以子宮頸癌細胞萃取之組蛋白去乙醯酶(HeLa nuclear HDAC)測試其活性,其中抑制活性最好之化合物6e、6l、6n,對於第一與第六型(HDAC-1, -6)組蛋白去乙醯酶之抑制活性與SAHA相當,而在第四及第八型(HDAC-4, -8)組蛋白去乙醯酶抑制活性中,均顯示較SAHA強之活性;而抑制活性最差之化合物6a、6b、6c,對於第一與第四型(HDAC-1, -4)組蛋白去乙醯酶之抑制效果亦均較SAHA差,而對於第八型(HDAC 8)組蛋白去乙醯酶之抑制活性則較SAHA強20倍以上,有潛力發展為選擇性第八型組蛋白去乙醯酶抑制劑。

在細胞抑制實驗中,化合物6n (GI50=0.13 μM)對於PC3細胞之抑制效果明顯強於SAHA (GI50=0.61 μM),證實以吲哚為基礎之氮-羥基肉桂酸醯胺之化合物6n具有發展為有效組蛋白去乙醯酶抑制劑抗癌藥物之潛力。
URI
https://203.71.86.71/handle/123456789/13460

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