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  5. 藥用真菌烏靈參及牛樟芝之活性成分研究
 
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藥用真菌烏靈參及牛樟芝之活性成分研究

Other Title
Bioactive Constituents from Medicinal Fungi Xylaria spp. and Antrodia cinnamomea
Type
thesis
Date Issued
2017-01-09
Author(s)
卓霆宇
Advisor
陳美全
李宗徽
Subjects
系所名稱:生藥學研究所
Description
學位別:碩士
語文別:中文
指導教授:陳美全
共同指導教授:李宗徽
口試委員:郭悅雄;蕭哲志;李慶國
中文關鍵字:烏靈參;牛樟芝;一氧化氮生成;細胞毒性
英文關鍵字:Xylaria spp.;Wu Ling Sen;Antrodia cinnamomea;NO production;cytotoxicity;antroquinonol
Abstract
炭角菌屬 (Xylaria) 真菌能夠產出結構類型豐富及多樣生物活性的二次代謝物,少數生長於白蟻巢中的炭角菌在中國做為藥用真菌稱「烏靈參」。牛樟芝 (Antrodia cinnamomea) 為台灣特有之藥用真菌,antroquinonol A為菌絲體分離出活性成分具有抑制多種癌細胞生長的作用,並已進入臨床試驗,本研究利用固態醱酵分離出20個antroquinonol類似物,並探討其抗癌活性之構效關係。
本研究利用抑制一氧化氮合成酶或抑制癌細胞生長的活性分析平台來篩選具有抗發炎活性或細胞毒性的藥用真菌,以活性顯著Xylaria acuminatilongissima YMJ623、X. fimbriata YMJ491及X. ochraceostroma YMJ401進行其活性成分研究,透過液態醱酵大量培養進行化合物之分離、純化,計獲得28個化合物,其中包含3個benzofuran類新化合物acumifurans A‒C (1‒3),7個isoprenyl phenolic ether類新化合物fimbriethers A‒G (4‒10),1個depside類新化合物xylaphenolester (11) 及16個已知化合物。A. cinnamomea IFS006透過固態醱酵培養進行化合物之分離、純化,計獲得30個化合物其中包含12個meroterpenoid類新化合物antroquinonol L (12) 和antroquinonols N‒X (13‒23) 以及18個已知化合物。在生物活性方面,化合物26對於RAW264.7細胞產生之一氧化氮具有些微的抑制活性,其在100 μM濃度下之Emax為42.98%,化合物21、22、43與47對於A549細胞株具有顯著的毒殺活性,其GI50分別為8.23、7.11、9.85、5.73 μM,化合物11對於PC-3細胞株具有顯著的毒殺活性,其GI50為5.80 μM。
URI
https://203.71.86.71/handle/123456789/57760

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