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中国药学(英文版) ›› 2014, Vol. 23 ›› Issue (6): 385-392.DOI: 10.5246/jcps.2014.06.052

• 【研究论文】 • 上一篇    下一篇

中药黄连中小檗碱类主要成分抗阿尔茨海默病的多靶点体外活性研究

胡莹1, 杨雁芳1, 杨文志2, 张英涛1*   

  1. 1. 北京大学医学部 药学院 天然药物学系, 北京 100191
    2. 中国科学院 上海药物研究所 中药现代化研究中心, 上海 201203  
  • 收稿日期:2014-03-29 修回日期:2014-05-09 出版日期:2014-06-28 发布日期:2014-05-15
  • 通讯作者: Tel.: 86-10-82801559

In vitro studies on the multi-target anti-Alzheimer activities of berberine-like alkaloids from Coptidis Rhizoma

Ying Hu1, Yanfang Yang1, Wenzhi Yang2, Yingtao Zhang1*   

  1. 1. School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, China 
    2. Shanghai Research Center for Modernization of Traditional Chinese Medicine, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
  • Received:2014-03-29 Revised:2014-05-09 Online:2014-06-28 Published:2014-05-15
  • Contact: Tel.: 86-10-82801559

摘要:

黄连为著名的清热泻火中药, 体外活性筛选发现, 黄连甲醇提取物能够通过抑制Aβ42聚集、乙酰胆碱酯酶(AChE)β分泌酶(BACE1)的活性而表现出多靶点的体外抗阿尔茨海默病作用。HPLC分析及单体成分的体外活性验证表明, 小檗碱类生物碱成分既是黄连的主要成分同时亦是其有效成分。黄连的上述体外药理活性能够通过6个主要生物碱的标准品混合物得到完整再现。分子对接研究表明, 小檗碱类生物碱可以通过疏水效应、芳香堆积和静电相互作用等直接结合于Aβ42AChEBACE1的活性位点。

关键词: 黄连, 阿尔茨海默病, β淀粉样肽, 乙酰胆碱酯酶, β分泌酶

Abstract:

Coptidis Rhizoma, a well known heat-clearing Chinese Materia Medica, exhibited multi-target anti-Alzheimer effects in vitro through inhibition of Aβ42 aggregation, AChE, and BACE1. Six berberine-like alkaloids were found to be the major active constituents of Coptidis Rhizoma by HPLC analysis along with activity assays. A standard combination of the six major alkaloids was demonstrated to fully reproduce the in vitroeffects of Coptidis Rhizoma. Molecular docking studies revealed that berberine-like alkaloids could directly bind at the active sites of Aβ42, AChE, and BACE1 through hydrophobic interactions, aromatic stacking, and electrostatic interactions.

Key words: Coptidis Rhizoma, Alzheimer’s disease, Amyloid β, AChE, BACE1

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