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  5. 醇溶玉米蛋白/酪蛋白鈉奈米粒子系統於小干擾RNA基因傳遞之製備與特性之應用研究
 
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醇溶玉米蛋白/酪蛋白鈉奈米粒子系統於小干擾RNA基因傳遞之製備與特性之應用研究

Other Title
Development and Characterization of Novel Delivery System for Small Interfering RNA of Integrin-Linked Kinase Based on Zein-Sodium Caseinate Nanoparticles
Type
thesis
Date Issued
2015-07-16
Author(s)
洪偉哲
Advisor
許明照
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:許明照
共同指導教授:
口試委員:林山陽;何元順
中文關鍵字:醇溶玉米蛋白;小干擾RNA;奈米載體;基因遞送
英文關鍵字:Zein;Sodium caseinate;Small interfering RNA;Gene delivery;Integrin-linked kinase
Abstract
基因治療已經成為研究的趨勢之一,小干擾RNA更是成為一個有潛力的治療方式。在本研究中利用在酸性環境下帶正電的醇溶玉米蛋白和帶負電的小干擾RNA以及酪蛋白鈉形成的奈米粒子將小干擾RNA轉染致癌細胞中,研究中使用的小干擾RNA是抑制 Integrin-linked kinase(ILK)基因,抑制此基因將抑制癌細胞的增生以及轉移和促使癌細胞的凋亡。單純的醇溶玉米蛋白奈米粒子在離子強度較高的環境下容易形成較大的粒子或是沉澱,因此加入酪蛋白鈉使得粒子能夠穩定的存在上述的環境進而達到轉染的效果。在從不同廠牌中的醇溶玉米蛋白中,利用形成的奈米粒子大小以及利用蛋白質電泳判斷甲型醇溶玉米蛋白含量來篩選使用的醇溶玉米蛋白來源。在本研究中,醇溶玉米蛋白奈米粒子搭載小干擾RNA的粒徑約為100至250奈米,為帶負電的粒子,經由螢光顯微鏡觀察由醇溶玉米蛋白轉染有螢光標記的小干擾RNA,可以發現螢光在細胞中的存在,證明此系統在細胞實驗中能夠將小干擾RNA攜帶進入細胞。研究中轉染效果利用即時聚合酶鏈式反應和商業轉染試劑TransIT TKO®比較並沒有明顯的差異,且以ILK圍標的的小干擾RNA在細胞存活率中也有明顯的抑制生長效果。
URI
https://203.71.86.71/handle/123456789/57309

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