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  5. 探討Biochanin A及Hesperitin藥物對於內生性CBF1所媒介的Notch訊息路徑之調控作用
 
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探討Biochanin A及Hesperitin藥物對於內生性CBF1所媒介的Notch訊息路徑之調控作用

Other Title
Effects of the biochanin A and hesperitin on the control of endogenous CBF1-dependent Notch signal pathway
Type
thesis
Date Issued
2007-06-25
Author(s)
王智民
Advisor
葉添順
Subjects
系所名稱:細胞及分子生物研究所
Description
學位別:碩士
語文別:中文
指導教授:葉添順
共同指導教授:李宏謨
口試委員:謝秀梅;林敬哲;陳彥州
中文關鍵字:Notch訊息傳導;CBF1;biochanin A;hesperitin
Abstract
Notch蛋白是一個穿膜受體,結構上具有高度的保留性,與其ligands進行特異性結合後,被活化的Notch受體藉由CBF1所媒介與非CBF1媒介的兩種路徑將訊息傳遞下去。過去的研究指出,Notch訊息傳導在許多細胞發展中扮演著重要的角色,包含「維持幹細胞不分化」、「決定細胞命運」,「癌化作用」與「抑制腫瘤生成」的能力。本實驗室先前構築了帶有四個野生型CBF1-response elements的luciferase報導質體 (pCBF1-RE-Luc),轉染此質體到K562細胞建立成一個穩定的K562/CBF1-RE-Luc細胞株。藉由報導基因分析,可評估不同藥物對於細胞中內生性Notch訊息傳導路徑的影響,本實驗室發現biochanin A與hesperitin可以活化內生性Notch訊息傳導路徑。
本論文的研究得知結果顯示,biochanin A與hesperitin可活化K562細胞的內生性Notch訊息傳導,並且這些活化現象都具有劑量與時間依賴效應。但是,然而這兩種藥物對於K562細胞中內生性Notch1 mRNA表現與細胞週期的分布並沒有明顯的影響。在生物功能方面,biochanin A與hesperitin可能經由Notch訊息傳導的活化,抑制了K562細胞群落的形成,除此之外,這兩種藥物均明顯促進K562細胞往紅血球分化。biochanin A與hesperitin對於CBF1所媒介之內生性Notch訊息傳導的分子調控機制仍有許多問題尚未釐清,需要更多的實驗與研究來討論。
URI
https://203.71.86.71/handle/123456789/12035
https://hdl.handle.net/11296/5cwtfj
File(s)
No Thumbnail Available
Name

C0183585.pdf

Size

6.29 MB

Format

Adobe PDF

Checksum

(MD5):93be802aea1e5dad7d0406b9c1ea7d82

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