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  5. 補中益氣湯對受放射線傷害之乳癌及幹細胞存活相關因子表現之比較研究
 
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補中益氣湯對受放射線傷害之乳癌及幹細胞存活相關因子表現之比較研究

Other Title
Influences of Traditional Chinese Bu Zong Yi Chi Tang (BY-Tang) on the Survival Factors of Gamma-Ray Irradiated Breast Cancer and Normal Tissue Stem Cells
Type
thesis
Date Issued
2008-07-03
Author(s)
簡偉倫
Advisor
施子弼
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:施子弼
共同指導教授:黃惠美
口試委員:李安榮;何元順;余慧敏
中文關鍵字:補中益氣湯;乳癌;幹細胞;放射線治療
Abstract
根據之前研究結果指出,漢方補益中藥對於照射放射線後或經化學藥物處理之正常幹細胞/前驅細胞具有保護功效。本實驗目的在探討此補益中藥在保護正常幹細胞的同時,是否同樣可促使受放射線壓力之乳癌細胞死亡。實驗進行上,取 MCF-7、MDA-MB-231 兩乳癌細胞株,乳癌檢體細胞(BCAC)及正常人體間質幹細胞(PLA),在照射放射線(900 ray)前後分別加入250 μg/ml之補中益氣湯 (BY-Tang) 觀察存活細胞數、表面分子及基因、蛋白表現上之變化異同作探討。結果指出,放射線及補中益氣湯處理可促使正常間質幹細胞生長,相對的減少乳癌細胞及乳癌細胞株之存活細胞數。在細胞表面分子之表現上,可以觀察到加入補中益氣湯有降低 MDA-MB-231 早期細胞 AC 133 標誌之比例。其可能相對的減低了癌症幹細胞的存在,減低癌細胞的攻擊性。
基因表現上,使用 RT-PCR 及 Real-time PCR array 觀察了前驅細胞基因、細胞週期基因、細胞凋亡基因、致癌基因及腫瘤轉移基因,補中益氣湯會促使 MCF-7 及 MDA-MB-231 之細胞週期抑制基因 P27 及MDA-MB-231細胞修補暨凋亡基因 P53 、 BCAC 之抑制癌細胞生長基因 PNN、BCAC 及 MDA-MB-231 之抑制癌細胞轉移基因 BRMS1、MCF-7 及 MDA-MB-231 之免疫暨發炎基因 CTSL1 的表現量大幅上升,同時抑制 MCF-7 之癌細胞轉移基因 CHD4 表現,但卻不影響 PLA 之基因表現。
在 cytokine array 分析上,補中益氣湯會促使 BCAC、MCF-7、MDA-MB-231 之許多免疫相關蛋白(如IL-1α、IL-1β、M-CSF、MDC、MIG、TRAIL-R3)及癌症生長抑制蛋白(如GRO、TNF-α、TIMP-1)表現。因此,顯示補中益氣湯可在不傷害 PLA 的同時,達成輔助抑制乳癌細胞之生長及惡化,特別是在帶有 estrogen receptor 之 MCF-7 上,更有顯著影響,具有輔助癌症病患之功效。
URI
https://203.71.86.71/handle/123456789/12699
https://hdl.handle.net/11296/k97gh3
File(s)
No Thumbnail Available
Name

C0187221.pdf

Size

10.3 MB

Format

Adobe PDF

Checksum

(MD5):197f7540592fabc8de552810229a8bc6

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