Bioactive components of Glycyrrhiza uralensis mediate drug functions and properties through regulation of CYP450 enzymes
Open Access
- 16 June 2014
- journal article
- Published by Spandidos Publications in Molecular Medicine Reports
- Vol. 10 (3), 1355-1362
- https://doi.org/10.3892/mmr.2014.2331
Abstract
Glycyrrhiza uralensis (G. uralensis) is a common medicinal plant that has mainly been used to modulate the pharmaceutical activity of herbal medicines. Although G. uralensis has been shown to affect the expression and activity of the key metabolic enzyme cytochrome P450 (CYP450), the detailed mechanism of this process has yet to be elucidated. The present study aimed to elucidate the effects of bioactive components of G. uralensis on different isoforms of CYP450 and determine the ability of these components to modulate drug properties. In the present study, mRNA levels of CYP1A2, CYP2D6, CYP2E1, and CYP3A4 were investigated by quantitative polymerase chain reaction (qPCR) in HepG2 cells following treatment with the major bioactive compounds of G. uralensis. The activity of CYP450 enzymes was investigated in human liver microsomes using the cocktail probe drug method, and the metabolites of specific probes were detected by UPLC‑MS/MS. The effects of G. uralensis on CYP450 were assessed using bioinformatics network analysis. Several compounds from G. uralensis had various effects on the expression and activity of multiple CYP450 isoforms. The majority of the compounds analysed the inhibited expression of CYP2D6 and CYP3A4. Several CYP isoforms were differentially modulated depending on the specific compound and dose tested. In conclusion, the present study suggested that G. uralensis influenced the expression and activity of CYP450 enzymes. Therefore, caution should be taken when G. uralensis is co‑administered with drugs that are known to be metabolized by CYP450. This study contributed to the knowledge of the mechanisms by which this medicinal plant, commonly known as licorice, modulates drug efficacy.Keywords
This publication has 34 references indexed in Scilit:
- Phytomonitoring and Phytoremediation of Agrochemicals and Related Compounds Based on Recombinant Cytochrome P450s and Aryl Hydrocarbon Receptors (AhRs)Journal of Agricultural and Food Chemistry, 2010
- Importance of CYP1A1 and CYP1B1 in bioactivation of benzo[a]pyrene in human lung cell linesToxicology Letters, 2009
- Repression of Activated Aryl Hydrocarbon Receptor–Induced Transcriptional Activation by 5α-Dihydrotestosterone in Human Prostate Cancer LNCaP and Human Breast Cancer T47D CellsJournal of Pharmacological Sciences, 2009
- Metabolic interactions of agrochemicals in humansPest Management Science, 2008
- Induction of Cytochrome P450 3A by the Ginkgo biloba Extract and Bilobalides in Human and Rat Primary HepatocytesDrug Metabolism Letters, 2008
- The importance of cytochrome P450 2B6 in the human metabolism of environmental chemicalsPharmacology & Therapeutics, 2007
- An in vivo and in vitro comparison of CYP gene induction in mice using liver slices and quantitative RT-PCRToxicology in Vitro, 2006
- Quantitative PCR assay for cytochromes P450 2B and 3A induction in rat precision-cut liver slices: Correlation study with induction in vivoJournal of Pharmacological and Toxicological Methods, 2005
- Cytochrome P450 enzymes in the heartThe Lancet, 2000
- P450 superfamily: update on new sequences, gene mapping, accession numbers and nomenclaturePharmacogenetics, 1996