天然产物研究与开发 ›› 2024, Vol. 36 ›› Issue (增刊1): 22-27.

• 研究论文 • 上一篇    下一篇

金樱子内生真菌Diaporthe sp. JH-1的化学成分及生物活性研究

许倩倩1,张   咪2,庞良芳1,刘雅瑞1,李亮霞1,鄢家艳1,卢圆圆1*   

  1. 1华中科技大学同济医学院附属湖北省妇幼保健院药学部,武汉 430075;2中国食品药品检定研究院,北京 100050
  • 出版日期:2024-09-14 发布日期:2024-07-17
  • 基金资助:
    国家自然科学基金青年项目(31700294);湖北省自然科学基金面上项目(2021CFB490);湖北省妇幼保健院院内课题(2023SFYY006、2021SFYZ002、2021SFYY 003)

Study on chemical constituents and biological activity of the endophytic fungus Diaporthe sp. JH-1 from Rosa laevigata Michx

XU Qian-qian1,ZHANG Mi2,PANG Liang-fang1,LIU Ya-rui1,LI Liang-xia1,YAN Jia-yan1,LU Yuan-yuan1*   

  1. 1Department of Pharmacy, Maternal and Child Health Hospital of Hubei Province,Tongji Medical College,Huazhong University 
    of Science and Technology,Wuhan 430057,China;2National Institutes for Food and Drug Control,Beijing 100050,China
  • Online:2024-09-14 Published:2024-07-17

摘要: 为探究药用植物金樱子(Rosa laevigata Michx)来源内生真菌(Diaporthe sp.JH-1)的化学成分,本实验联合运用硅胶柱色谱、ODS柱色谱、凝胶柱色谱(Sephadex LH-20)、半制备型高效液相色谱(HPLC)等分离技术,高分辨质谱、核磁共振(NMR)等鉴定技术从该菌株大米固体发酵产物的乙酸乙酯提取物中分离及鉴定得到6个间座壳素类衍生物,包括diaporisoindoles A、B和E(1~3)和 diaporindenes B~D(4~6)。化合物1~6均为首次从Diaporthe sp.JH-1中分离得到。对化合物1~6进行体外抗炎活性测试,发现化合物13能显著抑制NO生成。此外,化合物13能显著抑制COX-2、PEG2的活性,其作用机制与抑制NF-κB相关。

关键词: 内生真菌, Diaporthe sp.JH-1, 间座壳素, 抗炎

Abstract:

To investigate the chemical composition of the medicinal plant Rosa laevigata Michx derived endogenous fungi (Diaporthe sp. JH-1),we used a combination of multiple approaches,including silicon,ODS and gelatin rod chromatography,semi-prepared high-performance liquid chromatography (HPLC),high-resolution mass spectrometry,and magnetic resonance imaging (NMR).As a result,six chitin derivatives,including diaporisoindoles A,B,and E (1-3),and diaporindenes B-D (4-6) were isolated and characterized.These compounds were isolated from the genus Diaporthe sp.JH-1 for the first time.In vitro anti-inflammatory activity testing of compounds 1-6 revealed significant inhibition of NO production by compounds 1 and 3.Further investigation uncovered that 1 and 3 exert strong inhibitory effect on COX-2,PEG2,and its mechanism was related to the suppression of NF-κB.

Key words: endophytic fungi, Diaporthe sp.JH-1, diaporisoindoles, anti-inflammatory

中图分类号:  R284.2