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  5. Quercetin合併irinotecan/SN-38對人類胃癌細胞增生及轉移相關因子之影響:體內及體外實驗
 
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Quercetin合併irinotecan/SN-38對人類胃癌細胞增生及轉移相關因子之影響:體內及體外實驗

Other Title
Effects of quercetin combined with irinotecan/SN-38 on proliferation and metastasis-associated factors of human gastric cancer cells: in vivo and in vitro studies
Type
thesis
Date Issued
2015-07-08
Author(s)
雷慶萱
Advisor
葉松鈴
Subjects
系所名稱:保健營養學研究所
Description
學位別:碩士
語文別:中文
指導教授:葉松鈴
共同指導教授:
口試委員:蔡帛蓉;陳玉華
中文關鍵字:胃癌;槲皮素;Irinotecan;SN-38;循環內皮細胞;上皮間質轉化
英文關鍵字:Gastric cancer;Quercetin;Irinotecan;SN-38;Circulating endothelial cells (CEC);Epithelial-mesenchymal transition (EMT)
Abstract
化學治療對於大多數胃癌病人來說仍然是重要的,irinotecan (CPT-11)為胃癌之第一線化療藥物,其屬於DNA topoisomerase I抑制劑。然而,病人對於單一化療藥物之反應率(response rate)較低,數種化療藥物合併使用雖能提高反應率,但卻不一定會延長病人之存活時間,這些都是胃癌化療所面臨的挑戰。槲皮素(quercetin)為廣泛存在於蔬菜水果中的類黃酮物質,其對於某些抗癌藥物之效能具有加強效果,因此,本研究透過細胞與動物實驗,探討合併quercetin與irinotecan/SN-38 (活化型態之irinotecan)對於人類胃癌細胞株AGS之治療效果。從細胞實驗結果發現,合併給予quercetin及SN-38的組別與單獨給予SN-38的組別相比,其細胞存活率及細胞凋亡比例沒有顯著差異。在AGS異種移植小鼠模式中發現,血液循環內皮前趨細胞(circulating endothelial progenitors, CEPs)的比例在各組間沒有顯著差異,而合併給予quercetin及irinotecan的組別,其血液中循環內皮細胞(circulating endothelial cells, CECs)的比例高於單獨給予irinotecan的組別;腫瘤組織中Tie2的單核球細胞(Tie2-expressing monocytes, TEMs)之比例在單獨給予irinotecan的組別顯著上升,而合併給予quercetin及irinotecan的組別則對TEMs有負向調節的作用;此外,腫瘤組織中 COX-2、TGF-β 及EMT相關分子 (ITGβ6和vimentin) 之基因表現量在合併給予quercetin及irinotecan的組別皆顯著低於單獨給予irinotecan的組別。總結來說,本研究結果顯示,quercetin有助於提升irinotecan及SN-38在人類胃癌細胞AGS 中的作用效果。
URI
https://203.71.86.71/handle/123456789/57102

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