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  5. 透明質酸共聚物在關節軟骨組織工程之應用
 
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透明質酸共聚物在關節軟骨組織工程之應用

Type
thesis
Date Issued
2012-06-19
Author(s)
陳紋姍
Advisor
許秀蘊
Subjects
系所名稱:藥學研究所
Publisher
藥學研究所
Description
學位別:碩士
語文別:中文
指導教授:許秀蘊
共同指導教授:孫瑞昇
口試委員:林峯輝;蔡東湖;何意
中文關鍵字:透明質酸;軟骨組織工程
Abstract
退化性關節炎(Osteoarthritis)是關節軟骨常見的疾病,由於軟骨組織無血管、神經及淋巴支配的組織,因此受損的軟骨組織之自我修復能力相當有限。軟骨組織工程的基本概念是將細胞取出,並於適合的基材及環境下進行體外培養後,再植入體內,希望透過這樣的方式,獲得近似於天然的軟骨組織,修補軟骨受損部位。組織工程中所使用的水膠,其功能在於提供細胞初期貼附,而水膠必需具有生物相容性、生物可降解性及適合的力學特性與表面化學特性,促使細胞生長,進而形成組織。
透明質酸牽涉的生理或病理功能十分廣泛,其可藉由調控細胞生長、分化、附著與移動的程度,而影響胚胎發育(embryogenesis)、發炎反應(inflammation)、傷口癒合(wound healing)、血管新生(angiogenesis)及腫瘤形成(tumor formation)等
本研究目的是製備水膠提供未來軟骨組織工程之應用。注射水膠可完全充滿不規則手術的缺陷,減少了種植遷移的風險,並最大限度地減少手術缺陷,由於溶液凝膠狀態轉變。本研究,提出準備通過化學氧化透明質酸/己二酸二酰肼(oxi-HA/ADH)注射水膠在生理條件下交聯的方法。傅里葉變換紅外光譜和三硝基苯磺酸法被用來確認透明質酸氧化。注射oxi-HA/ADH凝膠可以保持至少4週,40%的降解率與凝膠樣的狀態。希望,可以幫助oxi-HA/ADH凝膠軟骨細胞合成Ⅱ型膠原和aggrecan mRNA的基因表現,且可以抑制IL-1β和MMPs的mRNA表現的即時定量反轉錄聚合酶連鎖反應分析結果,並藉由細胞活性及細胞毒性實驗顯示出良好的生物相容性。
URI
https://203.71.86.71/handle/123456789/11211

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