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    題名: 口服卵磷脂自乳化微米乳劑藥物傳遞系統包載irinotecan及rapamycin在胰臟癌治療的協同作用之研究
    Studies on synergistic combination effects of irinotecan/rapamycin-loaded oral lecithin-based self-microemulsifying drug delivery system in pancreatic cancer
    作者: 劉又瑄
    Liu, Yu-Hsuan
    貢獻者: 藥學系(碩博士班)
    何秀娥
    許明照
    關鍵詞: 愛萊諾迪肯;雷帕黴素;水飛薊素;合併治療;卵磷脂自乳化微米乳劑藥物傳遞系統
    irinotecan;rapamycin;silymarin;combination therapy;lecithin-based self-microemulsifying drug delivery system
    日期: 2019-07-11
    上傳時間: 2020-02-17 13:28:56 (UTC+8)
    摘要: 近年來,不同類型的癌症合併治療策略已成為癌症治療的趨勢。在這些合併治療策略中,以合併兩種或多種藥物之組合最為常見。本研究之目的為開發一種以卵磷脂為基底之口服型自乳化微米乳劑藥物傳遞系統(lecithin-based self-microemulsifying drug delivery system, LSMEDDS),同時包載愛萊諾迪肯(irinotecan)及雷帕黴素(rapamycin),以胰臟癌為研究目標,評估兩種藥物於胰臟癌治療的協同效應。
    研究結果證實, LSMEDDS 可成功同時包載愛萊諾迪肯與雷帕黴素,平均粒徑小於 200 nm ,放置室溫一個月可保持均勻之乳劑,藥物含量保有 90 % 以上,安定性佳。在體外藥物釋放試驗中,LSMEDDS 提高愛萊諾迪肯及雷帕黴素的溶解度與藥物釋放, 15分鐘即可達80 % 以上的藥物釋放。體外細胞試驗中亦發現愛萊諾迪肯及雷帕黴素以 1 : 1 合併使用時,具有強烈的協同作用(CI < 1.0)。在腫瘤抑制研究中, 以LSMEDDS包載10 mg/kg 愛萊諾迪肯、 10 mg/kg 雷帕黴素、 20 mg/kg 水飛薊素(silymarin)之藥物組合(LSMEDDSir10/ra10/sily20)對人類胰腺癌細胞 Mia PaCa-2 的腫瘤抑制率明顯高於其他組別,投予藥物後第 12 天腫瘤僅剩下 15.3 mm3,所有實驗動物皆未發現明顯副作用。藥物動力學試驗中證實 LSMEDDSir10/ra10 與 LSMEDDSir10/ra10/sily20 之藥物組合可提高愛萊諾迪肯與 雷帕黴素之血中最高濃度(Cmax)約 5 ~ 10 倍,藥物濃度對時間之曲線下面積(AUC0→∞)提升約 2.5 ~ 4 倍,成功增加其口服生體可用率。綜合以上結果,本研究成功開發以卵磷脂為基底之口服型自乳化微米乳劑藥物傳遞系統,同時包載愛萊諾迪肯及雷帕黴素可達明顯的協同作用,降低副作用,提升胰臟癌的治療效果,是一種具有潛力的化療藥物組合。
    In recent years, the combination of different types of cancer therapy has emerged as an advanced strategy for cancer treatment. In these combination therapies, oral anticancer drugs are more convenient and effective. The purpose of this study is developing an irinotecan/rapamycin-loaded oral lecithin-based self-microemulsifying drug delivery system (LSMEDDS) to evaluate the synergistic combination effects in pancreatic cancer.
    LSMEDDS loaded irinotecan and rapamycin in the ratio 1:1 (LSMEDDSir10/ra10) had better drug release profile and smaller particle size (<200 nm) compare to drug powder. It also showed strong synergistic effect (CI < 1.0) in the cell viability and combination effect studies. In the tumor inhibition study, the antitumor activity of LSMEDDSir10/ra10/sily20 against Mia PaCa-2 (human pancreatic cancer cells) was significantly increased than the other groups. The area under curve (AUC0→∞) and maximum concentration (Cmax) of irinotecan was significantly improved when administered with rapamycin and silymarin compared to control group.
    Based on the results of this study, we successfully developed the irinotecan/rapamycin-loaded oral lecithin-based self-microemulsifying drug delivery system (LSMEDDS) to achieve efficiently therapy in pancreatic cancer.
    描述: 碩士
    指導教授:何秀娥
    共同指導教授:許明照
    委員:林山陽
    委員:林宏糧
    委員:謝堅銘
    資料類型: thesis
    顯示於類別:[藥學系] 博碩士論文

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