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海洋真菌H1-04次级代谢产物抗肿瘤活性成分研究
The Studying on the Antitumor Active Components of Marine Fungus H1-04
【作者】 许晓妍;
【作者基本信息】 中国海洋大学 , 生药学, 2004, 硕士
【摘要】 本文采用小鼠乳腺癌细胞tsFT210,以细胞周期抑制、细胞凋亡诱导及细胞坏死为活性指标,对海洋真菌H1-04次级代谢产物进行了生物活性筛选。结果表明,其次级代谢产物对tsFT210细胞系具有细胞凋亡诱导和细胞坏死作用。我们采用流式细胞术结合显微镜观察细胞形态的活性测试方法对其次级代谢产物的抗肿瘤成分进行了活性追踪研究。 对H1-04分别进行了稳定性实验、萃取实验和时效曲线实验,确定了菌株的最佳发酵条件。依照预实验的结果,发酵到第6天的H1-04次级代谢产物依次用有效萃取溶剂环己烷、氯仿萃取,对得到的活性部位环己烷层和氯仿层分别采用减压硅胶柱层析、凝胶柱层析(SephadeX LH-20)、反相硅胶柱层析和反相制备高效液相(HPLC)等分离手段分离得到6个单体化合物(1,2,3,4,5,6)。利用理化性质和光谱学方法(UV、IR、MS、1D-NMR和2D-NMR)阐明了6个化合物的结构,分别为4,8-dihydroxy-1-tetralone,isosclerone(1),Terreperoxime(2),7-Hydroxy-12-methyl-1,11-bis-methylsulfanyl-9-oxa-12,14-diaza-tricyclo[9.2.2.03,8]pentadeca-3,5-diene-13,15-dione(3),Cyclo(tryptophanylprolyl)Hexahydro-3-(1H-indol-3-ylmethyl)pyrrolo[1,2-α]pyrazine-1,4-dione(4),5H,14H-Pyrrolo[1”,2”:4’,5’]pyrazino[1’,2’:1,6]pyrido[3,4-b]indole-5,14-dione,1,2,3,11,12,14a-hexahydro-12-(2-methyl-propenyl)(5),Imine derivative(6)。 流式细胞术及SRB法测试结果表明,化合物1、2和6具有显著的细胞凋亡诱导和细胞坏死作用,是H1-04次级代谢产物的主要抗肿瘤活性成分;5具有强的S期抑制作用;化合物3具有弱的细胞凋亡诱导和细胞坏死作用,并对细胞增殖具有一定的抑制作用;化合物4对细胞增殖具有一定的抑制作用。 本项研究工作首次从对tsFT210细胞具有凋亡和坏死活性的海洋真菌H1-04中分离得到新化合物2、3和6,并为从海洋真菌中提取抗肿瘤化合物提供了一定的化学和生物学参考。
【Abstract】 We have undertaken the screening for novel cell cycle inhibitors, apoptosis inducer and cytotoxic activity from the secondary metabolites of marine fungus HI-04 by use of a mouse cdc2 mutant cell line, tsFT210. The secondary metabolites of marine fungus HI-04 were successively partitioned with efficient Hexane and CHCls to yield crude active extracts. Successive purification of the active parts by silica gel, Sephadex LH-20, ODS, followed by reverse-phase high performance liquid chromatography and recrystalization, led to the isolation of six compounds 1-6.The structures of six compounds 1~6 were elucidated mainly by use of spectroscopic method (UV, IR, MS, 1D-NMR, 2D-NMR) and according to their physicochemical properties: 4,8-dihydroxy-l-tetralone,isosclerone (1), Terreperoxime (2), 7-Hydroxy-12-methyl-l,11-bis-methylsulfanyl- 9-oxa-12, 14-diaza-tricyclo[9.2.2.03, 8] pentadeca-3,5-diene-13,15-dione (3), Cyclo(tryptophany lprolyl)Hexahydro-3-(lH-indol -3-ylmethyl)pyrrolo[l,2-a]pyrazine-l,4-dione (4), 5H,14H-Pyrrolo[l",2": 4’,5’]pyrazino [1 ’,2’: 1,6]pyrido[3,4-b]indole-5,14-dione, 1,2,3,11,12,14a-hexahydro-12-(2-methyl-propenyl) (5), Imine derivative (6).Bioassay results using FCM and SRB indicated that compound 1, 2, 6 showed a strong bioactivity in apoptosis inducing and cytotoxic activity on tsFT210 cell. They are the main anticancer active compounds of HI-04. Compound 3 showed a tender bioactivity in apoptosis inducing and cytotoxic activity on tsFT210 cell. Compound 5 showed a strong bioactivity in inhibiting the cell progress at the S phase of tsFT210 cell.In summary, compounds 2, 3 and 6 were novel compounds. The activities ofcompound 2,3 and 6 were also discovered for the first time.
【Key words】 H1-04; Anticancer; Marine fungus H1-04; Isosclerone; Terreperoxime; Inline derivative;
- 【网络出版投稿人】 中国海洋大学 【网络出版年期】2005年 01期
- 【分类号】R73-3
- 【被引频次】2
- 【下载频次】299