细胞膜色谱法筛选川芎-白芷中5-HT受体激动剂的研究  

A cell membrane chromatography method for screening 5-HT receptor agonists from drug pair of Chuanxiong Rhizoma and Angelicae Dahuricae Radix

作　　者：杜晖 吕楠[2] 黄洁 邓梅 

机构地区：[1]西安市食品药品检验所,陕西西安710054 [2]西安交通大学医学部,陕西西安710061

出　　处：《中国中药杂志》2015年第3期490-494,共5页China Journal of Chinese Materia Medica

基　　金：陕西省中医药管理局科研项目(13-ZY005)

摘　　要：偏头痛是临床的常见病和多发病，研究表明，5-羟色胺（5-HT）受体在偏头痛的发病中起重要作用。实验通过大鼠纹状体组织制备得到色谱固定相，并利用细胞膜色谱与液相色谱的离线联用来特异性地识别川芎-白芷药对中可与固定相上受体相互作用的配体，发现了欧前胡素是其中潜在的活性成分。以不同浓度（2．42×10--4．84×10～mol·L-1）的5-HT10受体激动剂舒马普坦为模型药物，记录样品在模型中的容量因子，测得欧前胡素与5-HT10受体作用的平衡解离常数为（4．59±0．33）×10-5mol·L-1，并采用硝酸甘油致大鼠偏头痛模型验证其药理活性。该研究为体外快速有效地研究药物与受体之间的相互作用提供了一种新方法。Migraine is one of the common and frequently encountered diseases. The study proves that 5-hydroxytrypta,nine （5-HT） receptor, plays an important role in the occurrence of migraine. Rat striatum was used for preparation of the cell membrane stationary phase （CMSP） in our experiments. The cell membrane chromatography （CMC）-offline-HPLC system was applied to specifically recog- nize the components from the drug pair of Chuanxiong Rhizoma and Angelicae Dahuricae Radix, which interact with the receptors on CMSP. The dissociation equilibrium constant （KD） was measured in a rat striatum/CMC system, performed by continuously pumping sumatriptan, a 5-HTjD agonist, ranging from 2.42 × 10-s to 4.84×0-7 mol · L-1 through a CMC column, and the capacity factors （k＇） were recorded. The Ko value obtained from the model was （4.59± 0.33） ×10-6 mol· L-1 for imperatorin, and the rat model of migraine induced by nitrogXycerin was applied to validate the pharmacological effects of the drug pair. The results indicated that the CMC method could be a quick and efficient way for characterizing the drug-receptor interactions in vitro.

关 键 词：川芎 白芷 纹状体 细胞膜色谱 5-羟色胺受体 偏头痛 

分 类 号：R284[医药卫生—中药学] R285.5[医药卫生—中医学]