天然产物研究与开发 ›› 2023, Vol. 35 ›› Issue (5): 761-765.doi: 10.16333/j.1001-6880.2023.5.004

• 研究论文 • 上一篇    下一篇

银胶菊中木脂素类成分的研究

李   华,王素娟,李红霞,张贵杰*   

  1. 桂林医学院药学院,桂林 541199
  • 出版日期:2023-05-26 发布日期:2023-05-26
  • 基金资助:
    国家自然科学基金(21967007)

Lignans from Parthenium hysterophorus Linn.

LI Hua,WANG Su-juan,LI Hong-xia,ZHANG Gui-jie*   

  1. College of Pharmacy,Guilin Medical University,Guilin 541199,China
  • Online:2023-05-26 Published:2023-05-26

摘要:

研究银胶菊Parthenium hysterophorus Linn.中木脂素类化学成分。采用硅胶、Sephadex LH-20、MCI、ODS和半制备型HPLC等色谱技术,从银胶菊地上部分的95%乙醇提取物中分离得到5个木脂素类化合物(1~5),通过波谱学数据分析,将它们的结构分别鉴定为(7S,8S,7′E)-4,9,9′-三羟基-3,5,7,3′,5′-五甲氧基-8,4′-氧新木脂素-7′-烯(1)、丁香脂素(2)、杜仲树脂酚(3)、松脂素(4)、五味子醇甲(5)。其中,化合物1为新化合物,化合物3~5为首次从银胶菊中分离得到。对所有化合物进行了体外抗神经炎症活性筛选,结果显示,化合物1对LPS激活的BV-2小胶质细胞释放NO具有显著抑制作用,IC50为21.10 ± 1.97 μmol/L,其余化合物均无活性,且所有化合物在测试浓度下均不影响细胞的存活率。

关键词: 银胶菊, 木脂素, 小胶质细胞, 抗神经炎症活性

Abstract:

To study the lignans from Parthenium hysterophorus Linn.Five lignans (1-5) were isolated from the 95% ethanol extract of the aerial parts of P. hysterophorus by silica gel,Sephadex LH-20,MCI,ODS,and preparative HPLC chromatographic techniques.Their structures were established on the basis of extensive spectroscopic analysis and comparison with the data in reported literatures.As a result,five compounds were identified as (7S,8S,7′E)-4,9,9′-trihydroxy-3,5,7,3′,5′-pentamethoxy-8,4′-oxyneolign-7′-ene (1),syringaresinol (2),medioresinol (3),pinoresinol (4),schisandrin (5).Compound 1 was a new compound,and compounds 3-5 were isolated from P. hysterophorus for the first time.All the compounds were screened for their in vitro anti-neuroinflammatory activities,and the results showed that compound 1 displayed significant activity with an IC50 value of 21.10 ± 1.97 μmol/L.The other compounds were inactive,and all the compounds didn′t affect the cell survival under the test concentrations.

Key words: Parthenium hysterophorus Linn., lignan, microglia, anti-neuroinflammatory

中图分类号:  R284.2