天然产物研究与开发 ›› 2023, Vol. 35 ›› Issue (4): 656-661.doi: 10.16333/j.1001-6880.2023.4.013

• 开发研究 • 上一篇    下一篇

荷叶中的生物碱及其对5-HT2A和5-HT2C受体的激动作用研究

王   豪1,2,刘艳芳2,王   委3,芮海云1,董好岩1*   

  1. 1泰州学院江苏省手性医药化学品生物制造重点实验室;2泰州新药创制服务中心,泰州 225300;3中国科学院大连化学物理研究所,大连 116023
  • 出版日期:2023-04-24 发布日期:2023-04-24
  • 基金资助:
    江苏省高校自然科学基金面上项目(18KJB350011)

Alkaloids from leaves of Nelumbo nucifera Gaertn. and their agonistic activities on 5-HT2A and 5-HT2C receptors

WANG Hao1,2,LIU Yan-fang2,WANG Wei3,RUI Hai-yun1,DONG Hao-yan1*   

  1. 1Jiangsu Key Laboratory of Chiral Pharmaceuticals Biosynthesis,Taizhou University;2 Center for Novel Drug Development of Taizhou,Taizhou 225300,China;3Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian 116023,China 
  • Online:2023-04-24 Published:2023-04-24

摘要:

对荷叶中的生物碱进行了分离、鉴定和调脂减肥活性研究。本研究结合传统酸提碱沉法与现代高效液相色谱制备技术,从荷叶中分离、纯化到11个生物碱,分别被鉴定为N-氧基原荷叶碱(1)、原荷叶碱(2)、莲碱(3)、降氧化北美黄连次碱(4)、荜茇宁(5)、巴婆碱(6)、O-去甲基荷叶碱(7)、N-去甲基荷叶碱(8)、荷叶碱(9)、衡州乌药碱(10)和亚美罂粟碱(11),其中,化合物145为首次从荷叶中分得。测试所得化合物对5-HT2A和5-HT2C受体的激动作用,结果表明11个生物碱对5-HT2A受体均具有一定的激动作用,进一步揭示了荷叶调脂减肥的可能药效基础和作用机理。

关键词: 荷叶, 生物碱, 5-羟色胺受体, 调脂, 减肥

Abstract:

The alkaloids in leaves of Nelumbo nucifera Gaertn.were isolated,identified and evaluated for their lipid-regulating activities on receptors 5-HT2A and 5-HT2C in this study.Eleven alkaloids were isolated and purified from lotus leaves by combining the traditional acid extraction and alkali precipitation method with modern high-performance liquid chromatography techniques,and were identified as pronuciferine N-oxide (1),pronuciferine (2),roemerine (3),noroxyhydrastinine (4),piperlonguminine (5),asimilobine (6),O-nornuciferine (7),N-nornuciferine (8),nuciferine (9),coclaurine (10) and armepavine (11),respectively.Among them,compounds 1,4 and 5 were obtained from the title plant for the first time.It is revealed that all alkaloids possessed interesting agonistic activities on 5-HT2A receptor by an MTT assay on HEK 293 cell lines,which implied the potential chemical substance and pharmacological mechanism of the lipid-regulating activities of lotus leaves.

Key words: leaves of Nelumbo nucifera Gaertn., alkaloid, 5-HT receptor, lipid-regulating activity, weight loss

中图分类号:  R284.1