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  2. .TMU Publications / 北醫出版品(教師升等著作 / 教學實踐 / 學位論文)
  3. .博碩士學位論文
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  5. 甘胺酸螯合鐵透過抑制低氧誘導因子-1 alpha反轉人類惡性膠質瘤細胞的上皮間質細胞轉移
 
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甘胺酸螯合鐵透過抑制低氧誘導因子-1 alpha反轉人類惡性膠質瘤細胞的上皮間質細胞轉移

Other Title
Ferrous glycinate reverses epithelial mesenchymal transition by suppression of hypoxia-induced factor-1 alpha in human U87 glioma cells
Type
thesis
Date Issued
2016-06-27
Author(s)
林鈺璇
Advisor
李宏謨
Subjects
系所名稱:醫學檢驗暨生物技術學系所
Description
學位別:碩士
語文別:中文
指導教授:李宏謨
共同指導教授:
口試委員:高淑慧;王祥光
中文關鍵字:低氧誘導因子-1 alpha;甘胺酸螯合鐵;人類惡性膠質瘤細胞;上皮間質細胞轉移
英文關鍵字:HIF-1 alpha;ferrous glycinate;human U87 glioma cells;EMT
Abstract
過去有許多研究證實低氧誘導因子-1 alpha (HIF-1 alpha) 與癌症的代謝、轉移、侵襲和抗藥性有密切的相關。本篇研究發現在人類惡性膠質瘤中,甘胺酸螯合鐵 (ferrous glycinate) 可以透過增進與VHL的結合而促進低氧誘導因子-1的降解。甘胺酸螯合鐵透過減少HIF-1的堆積,可減少腦瘤細胞中的侵襲及轉移,也減少了基質金屬蛋白酶2和9 (matrix metalloproteinase-2/9, MMP-2/9) 的分泌。在蛋白層面,甘胺酸螯合鐵也減少了腦瘤細胞的轉錄因子扭轉蛋白 (twist) ,及其下游的波形蛋白 (vimentin) 之表現量減少,進而減少了會誘導上皮間質細胞轉移的現象。此外,甘胺酸螯合鐵亦可減少膠質細胞未分化狀態的巢蛋白 (nestin) ,並同時增加已分化的膠質原纖維酸蛋白 (glial fibrillary acidic protein, GFAP) ,促進其膠質瘤的分化。因此甘胺酸螯合鐵可能可以反轉上皮間質細胞轉移的現象,但與骨橋蛋白 (osteopontin, OPN) 和節點 (nodal) 關聯性不大。另外,我們發現甘胺酸螯合鐵調控HIF-1 alpha的機制並無改善華堡效應的結果,而合併使用甘胺酸螯合鐵及腦瘤的第二線治療用藥:卡莫司汀 (carmustine, BCNU) 及 (temolozomide, TMZ) ,對於改善腦瘤細胞對其所產生抗藥性問題的幫助也並不大。綜合以上結果,甘胺酸螯合鐵可能可以改善人類惡性膠質瘤細胞的上皮間質細胞轉移的現象。
URI
https://203.71.86.71/handle/123456789/57621

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