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  5. 探討天然化合物作為新穎DYRK1B抑制劑治療胰臟癌之潛力
 
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探討天然化合物作為新穎DYRK1B抑制劑治療胰臟癌之潛力

Other Title
Exploring the Therapeutic Potential of Natural Compounds as Novel Inhibitors of DYRK1B in Pancreatic Cancer
Type
thesis
Date Issued
2025-06-11
Author(s)
林晏綾
Advisor
皇甫維君
Subjects
系所名稱:癌症生物學與藥物研發研究所碩士班
Publisher
癌症生物學與藥物研發研究所碩士班
Description
學位別:碩士
口試委員:潘秀玲; 許凱程; 皇甫維君
關鍵字:DYRK1B、天然化合物、胰臟癌、ROS、細胞凋亡、鐵凋亡、休眠模式
Abstract
胰臟癌因其高致死率、高侵襲性與抗藥性,成為臨床上極難治療的惡性腫瘤之一。本研究旨在評估天然化合物Fv03作為DYRK1B抑制劑的抗癌潛力,並探討其對胰臟癌細胞株PANC-1與BxPC-3之影響。結果顯示,Fv03可顯著抑制兩細胞株PANC-1與BxPC-3的增生與存活,且對 BxPC-3 的抑制效果更強。PANC-1與BxPC-3的IC₅₀分別為77.05 ± 4.01 µM與13.93 ± 0.38 µM,GI₅₀為75.80 ± 11.07 µM與9.46 ± 0.94 µM。藥物機轉上,Fv03可有效抑制DYRK1B下游調控蛋白phospho-p27表現,並在PANC-1中促進Cyclin D1表現,促使癌細胞由休眠模式重新回到細胞週期。次世代定序與 qPCR分析進一步證實 Fv03 可影響細胞週期、代謝與氧化壓力路徑,並誘導細胞凋亡與鐵凋亡相關反應,包括降低抗氧化基因SOD1表現,誘導 Caspase 3活化切割 PARP引發細胞凋亡,並上調Transferrin receptor表現,導致 ROS上升與Fe²⁺累積,加劇脂質過氧化。儘管 Fv03 對細胞週期調控效果有限,可能因其多靶點特性及癌細胞具抗氧化適應能力所致,但本研究證實Fv03可透過抑制 DYRK1B、增加氧化壓力與干擾鐵代謝,有效誘導胰臟癌細胞凋亡,展現其作為 DYRK1B 抑制劑之治療潛力,為胰臟癌標靶藥物開發提供新方向。
URI
https://203.71.86.71/handle/123456789/9469

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