研究生: |
陳世昌 |
---|---|
論文名稱: |
以微脂粒劑型包覆水溶性抗癌藥物Irinotecan之探討 |
指導教授: |
朱一民
I-Ming Chu |
口試委員: | |
學位類別: |
碩士 Master |
系所名稱: |
工學院 - 化學工程學系 Department of Chemical Engineering |
論文出版年: | 2001 |
畢業學年度: | 89 |
語文別: | 中文 |
論文頁數: | 63 |
中文關鍵詞: | 微脂粒 、pH梯度 、抗癌藥物 |
外文關鍵詞: | Irinotecan, remote loading |
相關次數: | 點閱:77 下載:0 |
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Irinotecan (CPT-11)為一種有效的抗癌藥物,目前臨床上被應用於直腸癌的治療。但因為Irinotecan在血液中的生理pH值環境下,易行水解反應,而失去抗癌活性 ; 並且會有嚴重的副作用(如延遲性腹瀉)產生,造成臨床上極大的困擾。因此本研究之目的,即在不改變藥物任何化學結構下,以微脂粒包覆Irinotecan,來改進現今所使用的給藥方式。
本研究是利用實驗室所發展的各種微脂粒配方,以建立pH梯度的方式,將藥物載入微脂粒中。在進行藥物包覆時,探討不同操作條件對包覆效率的影響,實驗結果發現,在1ml、脂質濃度15mM(包覆檸檬酸液濃度為500mM)的微脂粒溶液、在加入1ml、1000mM的氫氧化鈉溶液(產生的pH值為3.8)及1ml、1mg/ml Irinotecan的條件下,對於EPC/Cholesterol(1 : 0.3 ;莫耳比)與EPC/Cholesterol/ DSPE-PEG-2000微脂粒(1 : 0.3 : 0.05;莫耳比)而言,包覆效率都可達95%以上。
利用改變微脂粒組成(如添加負電脂質)或包覆dextran sulfate於微脂粒的內水相中等方法,都能減緩在37℃水浴下藥物的釋放速率。
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