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  5. 曼氏血吸蟲之蟲卵抗原蛋白質體學分析及血吸蟲誘發之肝纖維化藥物開發
 
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曼氏血吸蟲之蟲卵抗原蛋白質體學分析及血吸蟲誘發之肝纖維化藥物開發

Other Title
Proteomic Analysis of Schistosoma mansoni Egg Antigens and Drug Development for Schistosomiasis-induced Liver Fibrosis
Type
thesis
Date Issued
2024-07-05
Author(s)
陳盈州
Advisor
鄭柏青
Subjects
系所名稱:醫學科學研究所博士班
Publisher
醫學科學研究所博士班
Description
學位別:博士
關鍵字:曼氏血吸蟲; 可溶性蟲卵抗原; 肝臟星狀細胞; 肝纖維化; 脂質奈米顆粒; 第一型轉化生長因子β受體
論文公開日期:2024-07-26
Abstract
血吸蟲病被世界衛生組織列為第二重大熱帶疾病,感染曼氏血吸蟲之後,蟲卵堆積在宿主肝臟造成的發炎反應是導致慢性血吸蟲病的主因,嚴重後果會引起宿主的肝纖維化。已知蟲卵製造的可溶性蟲卵抗原(SEA)會誘發宿主產生以Th2主導的免疫反應,我們從感染曼氏血吸蟲後第8週、第10週和第12週的小鼠肝臟分離出SEA,分別鑑定到76種、86種和57種蛋白質,利用差異化蛋白質體學的方式分析與肝臟星狀細胞活化相關的蛋白質,且確認SEA能誘導人類周邊血單核細胞(PBMC)分泌TGF-β接著刺激人類肝臟星狀細胞株(LX-2)纖維化;並開發脂質奈米顆粒(LNP)藥物,其攜帶之siRNA可調降細胞的Type I TGF-β Receptor(TGFβRI)表達,藉由控制粒徑介於50-100 nm可以達到肝臟蓄積的效果。本研究的成果證實了不同時期的蟲卵SEA蛋白組成有差異,以致誘導宿主肝纖維化的能力有差別,並搜尋到可能與纖維化相關的蛋白質14-3-3 epsilon、CDCP1、MATE1和MICOS值得更進一步的研究釐清;在藥物開發方面,我們設計的LNP-siTGFRI藥物應用在治療血吸蟲病肝纖維化的疾病小鼠,可以達到藥物蓄積肝臟的目的,有效緩解血吸蟲病肝纖維化的肉芽腫病癥,且無明顯的生物毒性,提供一個新的策略來治療血吸蟲感染相關的肝臟損傷疾病。
URI
https://203.71.86.71/handle/123456789/9703

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