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狼毒大戟中4种二萜类成分在大鼠肝微粒体中的代谢                                                           Δ


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        马天成   1,2* ,马玉坤 ,孙 珈 ,张金玲 ,郭丽娜 ,刘 琦 ,孙 宇 (1.齐齐哈尔医学院医药科学研究院,黑龙江
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        齐齐哈尔 161006;2.沈阳药科大学中药学院,沈阳 110016)
        中图分类号 R969.1         文献标志码 A           文章编号 1001-0408(2022)04-0465-08
        DOI  10.6039/j.issn.1001-0408.2022.04.14
        摘  要   目的 研究狼毒大戟中4种二萜类成分在大鼠肝微粒体中的代谢产物并探讨其代谢规律。方法 运用大鼠肝微粒体体外
        孵育法,将岩大戟内酯A、岩大戟内酯B、17-羟基岩大戟内酯A、17-羟基岩大戟内酯B加至由还原型烟酰胺腺嘌呤二核苷酸磷酸启
        动的大鼠肝微粒体孵育体系中,于37 ℃条件下孵育30 min,再用乙腈终止反应。以阴性组(先加乙腈再启动孵育30 min)为参考,
        采用超高效液相色谱-四极杆-飞行时间质谱联用技术,利用Analyst TF 1.7.1、PeakView 2.2、MetabolitePilot 1.5、MasterView 1.2软
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        件对其质谱裂解规律和代谢产物进行推测与鉴定。结果 4种二萜类成分在二级质谱中均易丢失H2O和CO等中性碎片。岩大戟
        内酯A和17-羟基岩大戟内酯A在肝微粒中的代谢反应主要为二羟基化、脱氢和一羟基化反应,分别鉴定出6、5个代谢产物。岩
        大戟内酯B和17-羟基岩大戟内酯B在肝微粒体中的代谢反应主要为一羟基化、水合和同分异构化反应,均鉴定出5个代谢产物。
        结论 岩大戟内酯A和17-羟基岩大戟内酯A在大鼠肝微粒体中均产生了羟基化及脱氢代谢产物,岩大戟内酯B和17-羟基岩大戟
        内酯B在大鼠肝微粒体中均产生了羟基化、水合及同分异构化代谢产物。4种二萜类成分的代谢产物均是Ⅰ相代谢产物。
        关键词 狼毒大戟;二萜类成分;超高效液相色谱-四极杆-飞行时间质谱联用技术;大鼠肝微粒体;体外代谢

        Metabolism of four diterpenoids of Euphorbia fischeriana in liver microsomes of rats
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        MA Tiancheng ,MA Yukun ,SUN Jia ,ZHANG Jinling ,GUO Lina ,LIU Qi ,SUN Yu(1. Academy of Medical
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        Sciences,Qiqihar Medical University,Heilongjiang Qiqihar 161006,China;2. College of Traditional Chinese
        Medicine,Shenyang Pharmaceutical University,Shenyang 110016,China)
        ABSTRACT   OBJECTIVE To study the metabolites of four diterpenoids of Euphorbia fischeriana in liver microsomes of rats and
        to investigate its metabolic regularity. METHODS In vitro incubation system of liver microsomes of rats was built. The jolkinolide
        A,jolkinolide B,17-hydroxyl jolkinolide A and 17-hydroxyl jolkinolide B were added into incubation system of liver microsomes
        in rats activated by reduced nicotinamide adenine dinucleotide phosphate,incubated at 37 ℃ for 30 min,and then terminated the
        reaction with acetonitrile. Taking the negative group(adding acetonitrile firstly and then starting incubation for 30 min)as the
        reference,the ultra-high performance liquid chromatography-quadrupole time-of-flight mass spectrometry was used;Anaylyst TF
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        1.7.1、PeakView 2.2,MetabolitePilot 1.5 and MasterView 1.2 software were used to speculate and identify the fragmentation law
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        of mass spectrometry and metabolites. RESULTS Four diterpenoids were easy to lose neutral fragments such as H2O and CO in
        secondary mass spectrometry. Jolkinolide A and 17-hydroxyl jolkinolide A showed similar metabolism pathway, including
        dihydroxylation,dehydrogenation,and monohydroxylation;six and five metabolites were identified respectively. Jolkinolide B and
        17-hydroxyl jolkinolide B showed similar metabolism pathway,including monohydroxylation,hydration and isomerization. Five
        metabolites were identified. CONCLUSIONS Both jolkinolide A and 17-hydroxyl jolkinolide A produce the metabolites of
        hydroxylation and dehydrogenation in liver microsomes of rats;both jolkinolide B and 17-hydroxyl jolkinolide B produce the
        metabolites of hydroxylation,hydration and isomerization in liver microsomes of rats. The metabolites of four diterpenoids are
        phase Ⅰ metabolites.
        KEYWORDS    Euphorbia fischeriana;diterpenoids;ultra-high performance liquid chromatography-quadrupole time-of-flight mass
        spectrometry;liver microsomes in rats;in vitro metabolism


           Δ 基金项目:黑龙江省普通本科高等学校青年创新人才培养计划                       狼毒大戟 Euphorbia fischeriana Steud.主要生长于
        项目(No.UNPYSCT-2018031);齐齐哈尔医学院院内科研基金项目             我国内蒙古、东北及河北等地区。其以根入药,味苦、
       (No.QMSI2019M-10)                                   辛,性平,有毒,具有泄水逐饮、破积杀虫的功效,是我国
           *博士研究生。研究方向:中药质量控制与成分分析。电话:                     传统中药材 。现代药理学研究表明,狼毒大戟具有抗
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        0452-2663371。E-mail:matiancheng2@126.com
                                                           肿瘤、抗细菌、抗真菌、抗病毒、抗癫痫等多种活性                     [2-3] 。
           # 通信作者:助理研究员,硕士生导师,博士。研究方向:天然药
        物活性成分提取分离及结构鉴定。电话:0452-2663371。E-mail:             狼毒大戟的主要成分包括二萜类、三萜类、香豆素类、酚
        zsy5811321@126.com                                 酸类、甾醇类等,其中二萜类成分为其主要的活性成


        中国药房    2022年第33卷第4期                                               China Pharmacy 2022 Vol. 33 No. 4  ·465 ·
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