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Hou Q, Liu Y, Xing X, Li S, Li J, Qian W, Yang C, Li H. Effects of the total flavonoid extracts and the monomers of Daphne genkwa on CYP2C8 activity. Xenobiotica 2022; 52:353-359. [PMID: 35621148 DOI: 10.1080/00498254.2022.2083531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
1. This study aimed to assess the effects of total flavonoid extracts (TFDG) and the monomers of Daphne genkwa on the CYP2C8 activity in vitro and in vivo.2. The 50% inhibitory concentration (IC50) values were used to determine the inhibitory effect of TFDG and its four monomers for the CYP2C8 activity by recombinant human CYP2C8 (RHCYP2C8) yeast microsome system in vitro, and the volume per dose index (VDI) was predicted the potential inhibition in vivo. The effects of multiple-dose administration of TFDG on the pharmacokinetic parameters of rosiglitazone in rats were evaluated.3. The IC50 values of apigenin, luteolin, hydroxy-genkwanin, genkwanin, and TFDG were 7.27μmol/L, 11.9μmol/L, 28.1μmol/L, 127μmol/L, and 13.4μg/mL, respectively. The VDI values of apigenin and TFDG were 2.15L and 6.60L. In vivo study, compared with the control group, the elimination phase half-life and mean residence time in the TFDG treatment group were significantly increased by 96.9% and 106.8% (p < 0.05), respectively.4. Apigenin showed a moderate inhibitory effect on the CYP2C8 activity in vitro, while the other three monomers were weak inhibitors. TFDG had a strong inhibitory effect on CYP2C8 in vitro and in vivo, and also inhibited the metabolism of rosiglitazone in rats.
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Affiliation(s)
- Qiaoyu Hou
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Yanzhi Liu
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Xueting Xing
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Shuo Li
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Jiaqi Li
- Department of Pharmacy, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Jiangsu, China
| | - Wen Qian
- Nanjing BRT-Biomed Company, Limited, Jiangning District, Jiangsu Province, China
| | - Changqing Yang
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Hanhan Li
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
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Wu X, Ma J, Ye Y, Lin G. Transporter modulation by Chinese herbal medicines and its mediated pharmacokinetic herb–drug interactions. J Chromatogr B Analyt Technol Biomed Life Sci 2016; 1026:236-253. [DOI: 10.1016/j.jchromb.2015.11.024] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Revised: 11/13/2015] [Accepted: 11/16/2015] [Indexed: 10/22/2022]
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Feng R, Tan XS, Wen BY, Shou JW, Fu J, He CY, Zhao ZX, Li XY, Zhu HX, Zhu P, Shi JG, Che CT, Yeung JHK, Zhang XF, Wang Y. Interaction effects on cytochrome P450 both in vitro and in vivo studies by two major bioactive xanthones from Halenia elliptica D. Don. Biomed Chromatogr 2016; 30:1953-1962. [PMID: 27228199 DOI: 10.1002/bmc.3771] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Revised: 05/11/2016] [Accepted: 05/20/2016] [Indexed: 11/07/2022]
Abstract
The major components, 1-hydroxy-2,3,5-trimethoxy-xanthone (HM-1) and 1,5-dihydroxy-2,3-dimethoxy-xanthone (HM-5) isolated from Halenia elliptica D. Don (Gentianaceae), could cause vasodilatation in rat coronary artery with different mechanisms. In this work, high-performance liquid chromatography coupled to ion trap time-of-flight mass spectrometry (LCMS-IT-TOF) was used to clarify the metabolic pathways, and CYP450 isoform involvement of HM-1 and HM-5 were also studied in rat. At the same time, in vivo inhibition effects of HM-1 and ethyl acetate extracts from origin herb were studied. Three metabolites of HM-5 were found in rat liver microsomes (RLMs); demethylation and hydroxylation were the major phase I metabolic reactions for HM-5. Multiple CYP450s were involved in metabolism of HM-1 and HM-5. The inhibition study showed that HM-5 inhibited Cyp1a2, 2c6 and 2d2 in RLMs. HM-1 inhibited activities of Cyp1a2, Cyp2c6 and Cyp3a2. In vivo experiment demonstrated that both HM-1 and ethyl acetate extracts could inhibit Cyp3a2 in rats. In conclusion, the metabolism of xanthones from the origin herb involved multiple CYP450 isoforms; in vitro, metabolism of HM-5 was similar to that of its parent drug HM-1, but their inhibition effects upon CYP450s were different; in vivo, Cyp3a2 could be inhibited by HM-1 and ethyl acetate extracts.
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Affiliation(s)
- Ru Feng
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences, Beijing, China
| | - Xiang-Shan Tan
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences, Beijing, China
| | - Bao-Ying Wen
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences, Beijing, China
| | - Jia-Wen Shou
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences, Beijing, China
| | - Jie Fu
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences, Beijing, China
| | - Chi-Yu He
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences, Beijing, China
| | - Zhen-Xiong Zhao
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences, Beijing, China
| | - Xiao-Yang Li
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences, Beijing, China
| | - Hui-Xin Zhu
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences, Beijing, China
| | - Ping Zhu
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences, Beijing, China
| | - Jian-Gong Shi
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences, Beijing, China
| | - Chun-Tao Che
- Department of Medicinal Chemistry & Pharmacognosy (MC 781) UIC College of Pharmacy, Chicago, USA
| | - John H K Yeung
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Xian-Feng Zhang
- Department of Neurosurgery, First Hospital, Jilin University, Changchun, China
| | - Yan Wang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences, Beijing, China
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Inhibitory effects of daiokanzoto (da-huang-gan-cao-tang) on p-glycoprotein. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2012; 2012:361516. [PMID: 22969825 PMCID: PMC3434426 DOI: 10.1155/2012/361516] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/12/2012] [Revised: 07/18/2012] [Accepted: 07/24/2012] [Indexed: 11/20/2022]
Abstract
We have studied the effects of various Kampo medicines on P-glycoprotein (P-gp), a drug transporter, in vitro. The present study focused on Daiokanzoto (Da-Huang-Gan-Cao-Tang), which shows the most potent inhibitory effects on P-gp among the 50 Kampo medicines studied, and investigated the P-gp inhibitory effects of Daiokanzoto herbal ingredients (rhubarb and licorice root) and their components by an ATPase assay using human P-gp membrane. Both rhubarb and licorice root significantly inhibited ATPase activity, and the effects of rhubarb were more potent than those of licorice root. The content of rhubarb in Daiokanzoto is double that in licorice root, and the inhibition patterns of Daiokanzoto and rhubarb involve both competitive and noncompetitive inhibition, suggesting that the inhibitory effects of Daiokanzoto are mainly due to rhubarb. Concerning the components of rhubarb, concentration-dependent inhibitory effects were observed for (−)-catechin gallate, (−)-epicatechin gallate, and (−)-epigallocatechin gallate. In conclusion, rhubarb may cause changes in the drug dispositions of P-gp substrates through the inhibition of P-gp. It appears that attention should be given to the interactions between these drugs and Kampo medicines containing rhubarb as an herbal ingredient.
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Eichhorn T, Efferth T. P-glycoprotein and its inhibition in tumors by phytochemicals derived from Chinese herbs. JOURNAL OF ETHNOPHARMACOLOGY 2012; 141:557-570. [PMID: 21963565 DOI: 10.1016/j.jep.2011.08.053] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2011] [Revised: 08/19/2011] [Accepted: 08/25/2011] [Indexed: 05/31/2023]
Abstract
P-glycoprotein belongs to the family of ATP-binding cassette (ABC) transporters. It functions in cellular detoxification, pumping a wide range of xenobiotic compounds, including anticancer drugs out of the cell. In cancerous cells, P-glycoprotein confers resistance to a broad spectrum of anticancer agents, a phenomenon termed multidrug resistance. An attractive strategy for overcoming multidrug resistance is to block the transport function of P-glycoprotein and thus increase intracellular concentrations of anticancer drugs to lethal levels. Efforts to identify P-glycoprotein inhibitors have led to numerous candidates, none of which have passed clinical trials with cancer patients due to their high toxicity. The search for naturally inhibitory products from traditional Chinese medicine may be more promising because natural products are frequently less toxic than chemically synthesized substances. In this review, we give an overview of molecular and clinical aspects of P-glycoprotein and multidrug resistance in the context of cancer as well as Chinese herbs and phytochemicals showing inhibitory activity towards P-glycoprotein.
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MESH Headings
- ATP Binding Cassette Transporter, Subfamily B, Member 1/antagonists & inhibitors
- ATP Binding Cassette Transporter, Subfamily B, Member 1/metabolism
- Animals
- Antineoplastic Agents, Phytogenic/adverse effects
- Antineoplastic Agents, Phytogenic/therapeutic use
- Drug Resistance, Neoplasm
- Drugs, Chinese Herbal/adverse effects
- Drugs, Chinese Herbal/therapeutic use
- Humans
- Neoplasms/drug therapy
- Neoplasms/metabolism
- Plants, Medicinal
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Affiliation(s)
- Tolga Eichhorn
- Department of Pharmaceutical Biology, Institute of Pharmacy and Biochemistry, Johannes Gutenberg University, Mainz, Germany
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Ohnishi M, Hitoshi K, Katoh M, Nadai M, Abe F, Kurono S, Saito H, Haniuda M, Hasegawa T. Effect of a Kampo preparation, byakkokaninjinto, on pharmacokinetics of ciprofloxacin and tetracycline. Biol Pharm Bull 2009; 32:1080-4. [PMID: 19483319 DOI: 10.1248/bpb.32.1080] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The effect on the bioavailability of the antimicrobial agents (ciprofloxacin and tetracycline), which are well known to form chelates with cationic metals such as calcium, was evaluated in 20 healthy male volunteers according to an open, random crossover fashion using a Kampo preparation, byakkokaninjinto (TJ-34) which contains various cationic metals including calcium. Each subject received a single oral dose of tetracycline (250 mg) alone or ciprofloxacin (200 mg) alone along with a single coadministration of one pack (3 g) of the Kampo preparation, at one-week intervals. Concentrations of the drugs in plasma and urine were analyzed by HPLC. Concomitant administration of the Kampo preparation significantly decreased the peak plasma concentration (C(max)) and area under the plasma concentration-time curves (AUC), but not time to reach C(max) (T(max)), of ciprofloxacin and tetracycline. However, the decrease in bioavailability of ciprofloxacin was slight (15%) compared with that of tetracycline (30%). The Kampo preparation significantly decreased the urinary recovery of tetracycline, but not ciprofloxacin, and it had no effect on the renal clearance of either ciprofloxacin or tetracycline. These results indicate that the Kampo preparation tested in this study reduces the extent of bioavailability of ciprofloxacin and tetracycline, but not renal excretion, by decreasing the gastrointestinal absorption due to the formation of insoluble chelates with calcium. We recommend that the dose timing of the Kampo preparation should be carefully controlled to avoid therapeutic failure especially for patients receiving the treatment with tetracycline.
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Affiliation(s)
- Masafumi Ohnishi
- Department of Pharmacy and Pharmacokinetics, Aichi Medical University School of Medicine, Aichi, Japan
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