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树豆酮酸A对人肝微粒体中5种常见细胞色素P450酶的体外抑制
作用研究
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陈 瑞 ,周 维 ,张 丽 ,朱高峰 ,黄 静 ,汤 磊 (1.贵州省化学合成药物研发利用工程技术研究中心,
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贵阳 550004;2.贵州医科大学药学院,贵阳 550004)
中图分类号 R285.5 文献标志码 A 文章编号 1001-0408(2021)02-0195-06
DOI 10.6039/j.issn.1001-0408.2021.02.12
摘 要 目的:研究树豆酮酸A对人肝微粒体中的5种细胞色素P450 (CYP)酶的体外抑制作用。方法:采用Cocktail探针药物法,
在人肝微粒体中加入 50.0、15.0、5.0、1.5、0.5、0.15、0.05 μmol/L 的树豆酮酸 A,与混合探针药物[包含非那西丁、右美沙芬、奥美拉
唑、睾酮、甲苯磺丁脲(分别为CYP1A2、CYP2D6、CYP2C19、CYP3A4、CYP2C9的探针药物)]共同孵育60 min。在另设空白组和
阳性对照组[α-萘黄铜、奎尼丁、(+)-N-3-苄基香酚、酮康唑、磺胺苯吡唑(分别为CYP1A2、CYP2D6、CYP2C19、CYP3A4、CYP2C9
的特异性抑制剂)]的基础上,以葛根素为内标,采用超高效液相色谱-质谱联用法(UPLC-MS/MS)分析相应代谢产物(对乙酰氨基
酚、右啡烷、5-羟基奥美拉唑、6β-羟基睾酮、羟基甲苯磺丁脲)的含量。以ACQUITY UPLC BEH C18为色谱柱,以0.01%甲酸水溶
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液-0.01%甲酸乙腈为流动相(梯度洗脱),柱温为40 ℃,流速为0.4 mL/min,进样量为2 μL;采用电喷雾电离源,以多反应监测模式
进行正负离子扫描,数据采集范围为m/z 100~1 200,碰撞气为氩气,雾化气为氮气,锥孔气流量为50 L/h,脱溶剂气流量为800 L/h,
正、负离子模式下毛细管电压分别为 2.0、1.5 kV,离子源温度分别为 120、110 ℃,脱溶剂的温度分别为 400、450 ℃。使用 Graph-
pad Prism 5.0 软件进行非线性回归分析并计算半数抑制浓度(IC50 )。结果:上述各代谢产物检测浓度的线性范围分别为 0.26~
8.35、0.36~34.56、0.10~3.09、3.67~117.37、0.15~4.88 μmol/L(R >0.99),定量下限分别为0.26、0.36、0.10、3.67、0.15 μmol/L。阳
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性对照组特异性抑制剂对人肝微粒体中 CYP1A2、CYP2D6、CYP2C19、CYP3A4、CYP2C9 酶的 IC50均在文献报道的可接受范围
内。树豆酮酸A对人肝微粒体中CYP1A2、CYP2D6、CYP3A4酶的IC50值均大于50 μmol/L,对CYP2C9、CYP2C19酶的IC50值分别
为4.94、18.00 μmol/L。结论:树豆酮酸A对人肝微粒体中CYP1A2、CYP2D6、CYP3A4酶没有抑制作用,对CYP2C9、CYP2C19酶
有一定的抑制作用。
关键词 树豆酮酸A;人肝微粒体;细胞色素P450酶;Cocktail探针药物法;超高效液相色谱-质谱联用法;特异性抑制剂;抑制作用
Inhibitory Effects of Cajanonic Acid A on 5 Kinds of Common CYP450 Enzyme in Human Liver
Microsomes in vitro
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CHEN Rui ,ZHOU Wei ,ZHANG Li ,ZHU Gaofeng ,HUANG Jing ,TANG Lei (1.Guizhou Provincial
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Engineering Technology Research Center for Chemical Drug R&D,Guiyang 550004,China;2. College of
Pharmacy,Guizhou Medical University,Guiyang 550004,China)
ABSTRACT OBJECTIVE:To study the inhibitory effects of cajanonic acid A on 5 kinds of cytochrome P450(CYP)enzyme,in
human liver microsomes in vitro. METHODS:By Cocktail probe substrate method,50.0,15.0,5.0,1.5,0.5,0.15,0.05 μmol/L
cajanonic acid A were added into liver microsomes, and incubated with mixed probe substrates [including phenacetin,
dextromethorphan,omeprazole,testosterone and toluenesulfonbutylurea (probe substrates of CYP1A2,CYP2D6,CYP2C19,
CYP3A4,CYP2C9,respectively)]. On the basis of setting up blank group and positive control group [ α-naphthalene brass,
quinidine,(+)-N-3-benzyl vanillin,ketoconazole and sulfabendazole (specific inhibitors of CYP1A2,CYP2D6,CYP2C19,
CYP3A4,CYP2C9,respectively)],using puerarin as internal standard,UPLC-MS/MS method was adopted to determine the
contents of corresponding metabolites (acetaminophen, dextrophane, 5-hydroxy omeprazole, 6 β-hydroxytestosterone,
hydroxytolbutamide). The determination was performed on ACQUITY UPLC BEH C18 column,with mobile phase consisted of
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0.01% formic acid aqueous solution-0.01% acetonitrile formic acid(gradient elution)at the flow rate of 0.4 mL/min. The column
temperature was 40 ℃,and the sample size was 2 μL. An electrospray ionization source was used to conduct positive and negative
ion scanning in the multiple reaction monitoring mode. The data acquisition range was m/z 100-1 200,the collision gas was argon,
the atomized gas was nitrogen,the gas flow rate of the cone hole was 50 L/h,the desorption gas flow rate was 800 L/h,the
capillary voltage under positive and negative mode was 2.0,
Δ 基金项目:国家自然科学基金资助项目(No.81660573);贵州省
1.5 kV,and the ion source temperature was 120 ℃,110 ℃,
科技计划项目(No.黔科合支撑〔2017〕2842,No.黔科合支撑〔2017〕2839)
respectively. The desolvent temperature were 400 ℃ and
*讲师,硕士。研究方向:药动学与药物质量控制。电话:
0851-86908318。E-mail:464268222@qq.com 450 ℃ , respectively. Non linear regression analysis was
# 通信作者:教授,博士生导师,博士。研究方向:药物研发设计、 performed by using Graphpad Prism 5.0 software and IC50 was
合成与药动学。电话:0851-86908318。E-mail:2317972657@qq.com calculated. RESULTS:The linear ranges of above metabolifes
中国药房 2021年第32卷第2期 China Pharmacy 2021 Vol. 32 No. 2 ·195 ·