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  5. 探討人類珍珠素蛋白多醣第五片段促進神經纖維生長之作用
 
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探討人類珍珠素蛋白多醣第五片段促進神經纖維生長之作用

Other Title
Studies of the effect of human perlecan domain V on promoting neurite outgrowth
Type
thesis
Date Issued
2009-06-19
Author(s)
洪愉萱
Advisor
楊維中
Subjects
系所名稱:生醫材料暨工程研究所
Description
學位別:碩士
語文別:中文
指導教授:楊維中
共同指導教授:
口試委員:李怡萱;宋俊松
中文關鍵字:硫酸肝素蛋白多醣、珍珠素 、背根神經結、 神經纖維
Abstract
基底膜(basement membrane, BM)是由第四型膠原蛋白(type IV collagen)、層黏蛋白(laminin)及蛋白多醣(proteoglycan)等物質所構成,主要功能是扮演維持上皮及內皮細胞型態與細胞附著及做為細胞生長支架(scaffold)的功能。硫酸肝素蛋白多醣(HSPG)為BM中重要的蛋白多醣類。先前研究指出HSPG具有促進神經纖維生長的功能,而珍珠素(perlecan)即屬於HSPG的一種,本研究是在探討基底膜中硫酸肝素蛋白多醣(heparan sulfate proteoglycan)珍珠素(perlecan)在神經系統所扮演的角色與功能,先前的研究中證實重組的人類珍珠素蛋白多醣第五片段(human perlecan domain V; H.Pln DV)在以laminin為基材貼覆的環境下具有促進背根神經節神經纖維生長的能力,因此本實驗主要目的是以重組基因技術(recombinant DNA technology)將perlecan domain V分成兩個含類似組成的片段(H.Pln DV-I, H.Pln DV-II)探討其對神經纖維生長之影響及作用機轉,研究結果顯示兩片段都會促進神經纖維的生長,先前文獻中顯示perlecan會與乙醯膽鹼酯酵素(AchE)有交互作用且AchE有促進神經纖維生長之作用,本研究第二部分探討perlecan與AchE的作用是否是透過perlecan domain V。結果顯示H.Pln DV, DV-I, DV-II可直接與AchE結合。推測H.Pln DV可能藉由與AchE的結合促進神經纖維的生長的。
URI
https://203.71.86.71/handle/123456789/12823
https://hdl.handle.net/11296/7r68ct
File(s)
No Thumbnail Available
Name

C0191364.pdf

Size

13.75 MB

Format

Adobe PDF

Checksum

(MD5):0a938b881b2aa8058fcf0a2b8350615f

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