Effects of Standardized Medicinal Plant Extracts on Drug Metabolism Mediated by CYP3A4 and CYP2D6 Enzymes
作者:Clarissa Feltrin、Ingrid Vicente Farias、Louis Pergaud Sandjo、Flávio Henrique Reginatto、Cláudia Maria Oliveira Simões
DOI:10.1021/acs.chemrestox.0c00182
日期:2020.9.21
The use of medicinal plants concomitantly with conventional drugs can result in herb–drug interactions that cause fluctuations in drug bioavailability and consequent therapeutic failure and/or toxic effects. The CYP superfamily of enzymes plays an important role in herb–drug interactions. Among CYP enzymes, CYP3A4 and CYP2D6 are the most relevant since they metabolize about 50% and 30% of the drugs on the market, respectively. Thus, the main goal of this study was to evaluate the occurrence of in vitro interactions between medicinal plant extracts and drug substrates of CYP3A4 and CYP2D6 enzymes. Standardized extracts from nine medicinal plants (Bauhinia forficata, Cecropia glaziovii, Cimicifuga racemosa, Cynara scolymus, Echinacea sp., Ginkgo biloba, Glycine max, Ilex paraguariensis, and Matricaria recutita) were evaluated for their potential interactions mediated by CYP3A4 and CYP2D6 enzymes. Among the extracts tested, C. glaziovii (red embaúba) showed the most relevant inhibitory effects of CYP3A4 and CYP2D6 activity, while I. paraguariensis (yerba mate) inhibited CYP3A4 activity. Both extracts were chemically analyzed by UPLC-MS/MS, and these inhibitory effects could lead to clinically potential and relevant interactions with the drug substrates of these isoenzymes.
使用药用植物与常规药物同时进行可能导致草药-药物相互作用,从而引起药物生物利用度波动,导致治疗失败和/或毒性效应。CYP超家族酶在草药-药物相互作用中扮演着重要角色。在CYP酶中,CYP3A4和CYP2D6最为相关,因为它们分别代谢市场上约50%和30%的药物。因此,本研究的主要目标是评估药用植物提取物与CYP3A4和CYP2D6酶药物底物之间的体外相互作用。对九种药用植物(Bauhinia forficata、Cecropia glaziovii、Cimicifuga racemosa、Cynara scolymus、Echinacea sp.、Ginkgo biloba、Glycine max、Ilex paraguariensis 和 Matricaria recutita)的标准化提取物进行了评估,以探讨其通过CYP3A4和CYP2D6酶介导的潜在相互作用。在测试的提取物中,C. glaziovii(红巴西木)表现出了对CYP3A4和CYP2D6活性最显著的抑制效果,而I. paraguariensis(马黛茶)则抑制了CYP3A4的活性。这两种提取物均通过UPLC-MS/MS进行了化学分析,这些抑制效应可能导致与这些同种酶药物底质的临床潜在和相关相互作用。