摘要
一株来源于海泥的放线菌S1001发酵产物具有致细胞坏死活性,本文采用溶剂萃取、硅胶柱层析及制备HPLC等分离手段对该菌株发酵产物的活性部位进行了活性追踪分离,共分离得到8个化合物,通过理化性质及波谱学手段,鉴定其结构分别为4,,5,7-三羟基异黄酮(1),4-(2,4-二羟基苯酰胺基)苯甲酸(2),环(甘氨酸-丙氨酸)(3),环(甘氨酸-脯氨酸)(4),环(亮氨酸-酪氨酸)(5),环(缬氨酸-亮氨酸)(6),环(缬氨酸-异亮氨酸)(7),环(苯丙氨酸-甘氨酸)(8),并用SRB法初步评价了化合物1~8的抗肿瘤活性,结果表明化合物4、5和7在10μmol/L浓度时对K562细胞表现出了一定的抑制活性。
To explore the antitumor active component in fermentation of a marine derived actinomyeete S1001, 8 compounds were isolated and purified by using solvent extraction, silica gel column and preparative HPLC. The separation procedure was traced by a bioassay using tsFT210 cell lines. By means of physico-chem ieal properties and spectral analyses, the structures of compounds were determined as: 4', 5, 7-trihydroxy- isoflavone (1), 4-(2,4-dihydroxybenzamido) benzoic acid (2), cyclo-(Gly-Ala) (3), cyclo-(Gly-Pro) (4), cyelo-(Leu-Tyr) (S), cyclo-(Val-Leu) (6), cyclo-(Val-Ile) (7), cyclo-(Phe-Gly) (8), respectively. The antitumor activities of these compounds were assayed by the SRB method against K562 cell line. Compounds 4, 5 and 7 showed eytotoxieity at the concentration of 10μmol/L.
出处
《中国抗生素杂志》
CAS
CSCD
北大核心
2006年第1期36-38,62,共4页
Chinese Journal of Antibiotics
基金
国家863计划(2003A624020)
国家自然科学基金(No.30472136&30470196)
山东省和青岛市自然科学基金(No.Z2001C01&04-2-JZ-81)
关键词
海洋放线菌
次级代谢产物
异黄酮
环二肽
抗肿瘤活性
Marine actinomycete
Secondary metabolites
Isoflavone
Cyclodipeptides
Antitumot activity