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resinaceum 的三@@類酒精萃取物,進行蛋白質水解酵素的抑 制物之篩選

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• 系統編號 RD9008-0020

• 計畫中文名稱 靈芝Ganoderma resinaceum 抑制蛋白水解酵素之抗腫瘤成分之研究

• 計畫英文名稱 Antitumor Compounds as Proteinase Inhibitor from Ganoderma resinaceum

• 主管機關 行政院國家科學委員會 • 計畫編號 NSC89-2312-B038-001

• 執行機構 台北醫學院醫學系

• 本期期間 8808 ~ 8907

• 報告頁數 9 頁 • 使用語言 中文

• 研究人員 蘇慶華 Su, Ching-Hua

• 中文關鍵字 靈芝;抗癌;蛋白酵素;三帖類;無柄靈芝

• 英文關鍵字 Ganoderma;Antitumor;Proteinase;Triterpenoid;Ganoderma resinaceum

• 中文摘要

由以前實驗證明Ganoderma resinaceum (CCRC-36147)在 65 種靈芝中,具有最豐富之三@@類類型,並於細胞實驗中證實對 HL-60 細胞具有 Apoptosis 作用。本研究延續此一結果針對 G. resinaceum 的三@@類酒精萃取物,進行蛋白質水解酵素的抑 制物之篩選。其三@@類酒精萃取物,分別做 Collagenase inhibitor assay、Chymotrypsin 抑制活性測試,並以 Hela cell line 做 細胞實驗,篩選出有效成份。每一成分別經由MPLC 及 TLC 將其粗分離,再經由 PLC 純化,找出最後最有效的單一成分。

實驗結果可知由G. resinaceum 的酒精萃取物由 MPLC 及 TLC 粗分離成 4 個部分,最有效成分為 T 組,再由 PLC 純化成 8 個成分,最有效為T-2 組,再由 T-2 組純化 T-2-1 為有效成分及再次純化出 T-2-1-1 為 T 組中單一有效成分。T-2-1-1 對細胞 存活率有明顯的抑制其存活,在流式細胞儀實驗中,看出加入T-2-1-1 其細胞碎片增加至 73.59%,且細胞型態變得比較不 規則。在in vitro assay 中,T-2-1-1 對 Collagenase 抑制其鈄率為-1.9E-6 (Negative control 為 0.86E-6)明顯有抑制效果;在 Chymotrypsin 抑制活性測式方面,T-2-1-1 其水解圈為 0.4cm (Negative control 為 0.9cm)有明顯的抑制效果。最後推測 T-2-1-1

的結構為一個27 個碳之三@@類物質。經由本研究結果證實,此一三@@類能當蛋白質水解酵素的抑制物,將大量收集,

做為腫瘤細胞之抑制物質之研究。

• 英文摘要 Previous study on survey of 65 ganoderma fruiting bodies demonstrated that alcoholic extract of G. resinaceum (CCRC-26147) enhanced apoptosis of HL-60 cell lines. The present study has focused on the proteinase inhibiton activity against collagenase and chymotrypsin of this species as well as a growth inhibitor of HeLa cell. Fruiting body (10 kg) of G. resinaceum was extracted and fractionation into four groups (C, B, M, and T) by MPLC system, in which only T fraction showed inhibitory on the assays. Then, T

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fraction was further separated into T-2, T-2-1, and T-2-1-1 by preparative TLC. All these fractions demonstrated strong inhibitory activity on collagenase, chymotrypsin and cell growth of HeLa cell line. NMR spectrum suggested T-2-1-1 was C/sub 27/

triterpenoid related to lucidenic acid in literature. The result indicated that triterpenoids in G. resinaceum could be a potential drug for the treatment of carcinoma.

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