天然产物研究与开发 ›› 2024, Vol. 36 ›› Issue (11): 1868-1873.doi: 10.16333/j.1001-6880.2024.11.007 cstr: 32307.14.1001-6880.2024.11.007

• 研究简报 • 上一篇    下一篇

链霉菌Streptomyces sp. P325的化学成分研究

唐相琴1,姜瑞金1,毕晓旭2,陈   秀1,何江波1*,王   莹1*   

  1. 1昆明学院医学院;2昆明学院农学与生命科学学院,昆明 650214
  • 出版日期:2024-11-25 发布日期:2024-11-25
  • 基金资助:
    云南省基础研究专项面上项目(202301AT070056);云南省科技厅基础研究(202401AT070029),云南省教育厅科学研究基金(2023J0832);昆明学院人才引进项目(YJL2217)

Study on the chemical constituents of Streptomyces sp. P325

TANG Xiang-qin1,JIANG Rui-jin1, BI Xiao-xu2,CHEN Xiu1,HE Jiang-bo1*,WANG Ying1*   

  1. 1 School of Medicine,Kunming University; 2College of Agronomy and Life Sciences,Kunming University,Kunming 650214,China
  • Online:2024-11-25 Published:2024-11-25

摘要:

Streptomyces sp. P325的化学成分进行研究。采用正相硅胶柱色谱、ODS反相柱色谱、凝胶柱色谱及半制备高效液相色谱等分离技术对Streptomyces sp. P325发酵产物的乙酸乙酯萃取部分进行分离纯化。从中共分离得到6个化合物,通过波谱数据分析和文献比对鉴定其结构,其中包括2个新化合物:四羟基十八碳二酸I(1)和四羟基十六碳二酸I(2),以及4个已知化合物:iso-frenolicin B(3)、(R)-7-acetyl-3,6-dihydroxy-8-propyl-3,4-dihydronaphthalen-1(2H)-one(4)、对羟基苯甲酸甲酯(5)和isonicotinaldehyde(6)。对分离得到的化合物1~6进行细胞毒活性评价。结果显示,化合物3对HepG2细胞系表现出显著的抑制活性(IC50为13.11 μmol/L),对HeLa细胞的抑制活性为中等(IC50为25.04 μmol/L)。

关键词: 链霉菌, 化学成分, 分离纯化, 结构鉴定, 细胞毒活性

Abstract:

The chemical constituents of Streptomyces sp. P325 were investigated. The ethyl acetate extract of its fermentation broth was separated and purified using various chromatography techniques,including silica gel column,ODS reverse gel column,Sephadex LH-20 column,and semipreparative HPLC.Six compounds were isolated,and their structures were identified by spectral data analysis and literature comparison,including two new compounds,tetrahydroxy-octadecanoic acid I (1) and tetrahydroxy-hexadecanedioic acid I (2),as well as four known compounds:iso-frenolicin B (3),(R)-7-acetyl-3,6-dihydroxy-8-propyl-3,4-dihydronaphthalen-1(2H)-one (4),methyl p-hydroxybenzoate (5),and isonicotinaldehyde (6).The isolated compounds 1-6 were evaluated for cytotoxic activities.The results indicated that compound 3 exhibited significant inhibitory activity against HepG2 cells with an IC50 of 13.11 μmol/L. Compound 3 showed a moderate growth inhibitory effect against Hela cells with an IC50 of 25.04 μmol/L.

Key words: Streptomyces sp., chemical constituents, separation and purification, structural identification, cytotoxic activity

中图分类号:  R284.2