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  5. 天然化合物蓽茇醯胺結合明膠奈米粒子做為頭頸癌輔助治療提升治療效益
 
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天然化合物蓽茇醯胺結合明膠奈米粒子做為頭頸癌輔助治療提升治療效益

Other Title
Natural compound Piperlongumine combined with Gelatin Nanoparticles as a supportive therapeutic strategy for Head and Neck cancer to improve therapeutic outcome
Type
thesis
Date Issued
2023-07-17
Author(s)
郭竣
Advisor
陳盈汝 ; 曾靖孋
Subjects
系所名稱:生醫材料暨組織工程研究所碩士班
Description
學位別:碩士
語文別:中文
口試委員:曾靖孋 TSENG, CHING-LI;陳奕平 CHEN, YI-PING;陳盈汝 CHEN, YIN-JU;楊凱強 YANG, KAI-CHIANG;楊自森 YANG, TZU-SEN
授權範圍:網際網路,開放日期為2023-08-01
Abstract
頭頸癌為十大癌症之一,根據台灣衛福部的統計,2013年的死亡人數統計癌症死亡人數為5萬1927人,佔總死亡人數的24.9%。癌症治療對於正常細胞或組織造成傷害並且存在副作用及抗藥性問題,使得患者感到不適間接影響生活品質。因此,尋找輔助藥物提升治療效益並改善副作用是重要的。研究顯示,具疏水性的天然化合物蓽茇醯胺(Piperlongumine, PL),具有抗癌、抗發炎、抗血管生成等特性,並且能提升癌細胞的放射性敏感度。因此,以PL做為治療的輔助策略,將有助於提升治療效益。由於PL為疏水性藥物難以被直接利用且以及維持長期效益,使得其PL傳遞能力和治療效率面臨困境。奈米粒子作為藥物載體用於癌症治療已被大量研究和使用,將藥物結合奈米粒子能夠改善疏水藥物的低水溶性、具有藥物緩釋能力以及高滲透長治療效應等優勢,提升治療效益。因此,研究使用天然抗癌藥物蓽茇醯胺PL,結合明膠奈米粒子 (Gelatin nanoparticles, GNP),合成PL明膠奈米粒子(GNP-PL)。研究GNP-PL及PL,在低藥物濃度條件下對細胞活性以及放射敏感度治療效率之差異及影響。奈米粒子特性透過動態光散射粒徑分析儀分析奈米粒子的粒徑大小分佈、電位分析以及聚合物分散性指數,包覆率分析以高效液相層析儀進行,奈米粒子型態以穿透式電子顯微鏡分析。細胞活性分析以WST-8進行,放射線敏感性分析透過細胞群落形成試驗分析。結果顯示GNP-PL平均粒徑大小84.47 ± 0.9749 nm、平均界達電位24.9 ± 0.3559 mV及平均PDI值0.1738 ± 0.01539 ; 細胞活性實驗中,GNP-PL組別均表現出比PL組別有效的抑制口腔癌細胞活性能力但對於正常纖維母細胞幾乎不受影響,於放射性實驗中GNP-PL組別比PL組別有更好提升癌細胞放射性敏感度之治療效率。低濃度PL包覆於奈米粒子有助於抑制癌細胞生長且維持長時間的藥效,增加放射線敏感性, GNP-PL奈米粒子未來將有助於作為頭頸癌輔助治療之新策略以提升治療效益。
URI
https://handle.ncl.edu.tw/11296/5rmg92
https://203.71.86.71/handle/123456789/10038

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