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  5. 探討Sunitinib對Paclitaxel與Nocodazole在人類乳癌細胞所引發細胞凋亡的影響
 
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探討Sunitinib對Paclitaxel與Nocodazole在人類乳癌細胞所引發細胞凋亡的影響

Other Title
Effects of Sunitinib on Paclitaxel and Nocodazole-induced apoptosis in human breast carcinoma cells
Type
thesis
Date Issued
2011-07-01
Author(s)
邱立婷
Advisor
陳彥州
Subjects
系所名稱:醫學科學研究所
Description
學位別:碩士
語文別:中文
指導教授:陳彥州
共同指導教授:
口試委員:葉添順;何元順
中文關鍵字:sunitinib,paclitaxel,nocodazole,乳癌,細胞凋亡
Abstract
Sunitinib (SUT),是目前臨床上常被用來做為抗血管新生與細胞增生的酪胺酸激酶接受器抑制劑(receptor tyrosine kinase inhibitor,RTKI)類藥物之一。然而,隨著近期不少科學家的研究顯示,SUT與其他化療藥物合併使用可能可以減少使用單一藥物所產生的抗藥性,且可能達到更好的治療癌症效果。故本篇主要是要研究SUT與兩個抗細胞有絲分裂藥物(antimitotic drugs, AMDs)-Paclitaxel (PTX) 與Nocodazole (NOC) ,分別合併使用後對乳癌細胞是否有藥物的協同作用以達到更好的治療效果,並且進一步探討其兩個藥物合併使用所互相影響的分子機轉。而在本篇的研究結果顯示,在人類乳癌細胞株MDA-MB-231,SUT與PTX或與NOC合併使用後,與只使用單一藥物處理組別相比有促進其癌細胞死亡的情形; 然而,在人類乳癌細胞株MCF-7中則發現藥物合併使用後,癌細胞存活率較單獨使用PTX或NOC反而有提升的現象。藉由偵測去氧核醣核酸(DNA)片段化與細胞凋亡(apoptosis)相關蛋白的表現,進一步證實SUT對於在MDA-MB-231與MCF-7兩株細胞株之間有著不同藥物合併的效果。並且也發現在MCF-7細胞株共同使用SUT與PTX或NOC後,會影響原本PTX或NOC所誘導細胞停滯在細胞週期G2/M 時期,而進而降低了細胞走向細胞凋亡,而這樣的結果可能與SUT會干擾抑制G2/M時期調節蛋白的表現有關。在此篇結果顯示,SUT合併使用PTX或NOC在不同種乳癌細胞有不同的治療效果,這樣的發現可以提供做為臨床上治療乳癌患者的參考依據。
 
URI
https://203.71.86.71/handle/123456789/13571

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