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He L, Chen C, Duan S, Li Y, Li C, Yao X, Gonzalez FJ, Qin Z, Yao Z. Inhibition of estrogen sulfation by Xian-Ling-Gu-Bao capsule. J Steroid Biochem Mol Biol 2023; 225:106182. [PMID: 36152789 DOI: 10.1016/j.jsbmb.2022.106182] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 09/07/2022] [Accepted: 09/18/2022] [Indexed: 02/01/2023]
Abstract
Xian-Ling-Gu-Bao capsule (XLGB) is a widely prescribed traditional Chinese medicine used for the treatment of osteoporosis. However, it significantly elevates levels of serum estrogens. Here we aimed to assess the dominant contributors of sulfotransferase (SULT) enzymes to the sulfation of estrogens and identify the effective inhibitors of this pathway in XLGB. First, estrone, 17β-estradiol, and estriol underwent sulfation in human liver S9 extracts. Phenotyping reactions and enzyme kinetics assays revealed that SULT1A1, 1A2, 1A3, 1C4, 1E1, and 2A1 all participated in estrogen sulfation, with SULT1E1 and 1A1 as the most important contributors. The incubation system for these two active enzymes were optimized with Tris-HCl buffer, DL-Dithiothreitol (DTT), MgCl2, adenosine 3'-phosphate 5'-phosphosulfate (PAPS), protein concentration, and incubation time. Then, 29 compounds in XLGB were selected to investigate their inhibitory effects and mechanisms against SULT1E1 and 1A1 through kinetic modelling. Moreover, in silico molecular docking was used to validate the obtained results. And finally, the prenylated flavonoids (isobavachin, neobavaisoflavone, etc.) from Psoralea corylifolia L., prenylated flavanols (icariside II) from Epimedium brevicornu Maxim., tanshinones (dihydrotanshinone, tanshinone II-A,) from Salvia miltiorrhiza Bge., and others (corylifol A, corylin) were identified as the most potent inhibitors of estrogen sulfation. Taken together, these findings provide insights into the understanding regioselectivity of estrogen sulfation and identify the effective components of XLGB responsible for the promotion of estrogen levels.
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Affiliation(s)
- Liangliang He
- College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Chanjuan Chen
- College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Shuyi Duan
- Department of Pharmacology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Yang Li
- College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Chuan Li
- State key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Xinsheng Yao
- College of Pharmacy, Jinan University, Guangzhou 510632, China; International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development Ministry of PR China, Jinan University, Guangzhou 510632, China
| | - Frank J Gonzalez
- Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Zifei Qin
- College of Pharmacy, Jinan University, Guangzhou 510632, China; Department of Pharmacology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China.
| | - Zhihong Yao
- College of Pharmacy, Jinan University, Guangzhou 510632, China; State key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China; International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development Ministry of PR China, Jinan University, Guangzhou 510632, China.
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Liu J, Shi Y, Wu C, Hong B, Peng D, Yu N, Wang G, Wang L, Chen W. Comparison of Sweated and Non-Sweated Ethanol Extracts of Salvia miltiorrhiza Bge. (Danshen) Effects on Human and rat Hepatic UDP-Glucuronosyltransferase and Preclinic Herb-Drug Interaction Potential Evaluation. Curr Drug Metab 2022; 23:473-483. [PMID: 35585828 DOI: 10.2174/1389200223666220517115845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 02/16/2022] [Accepted: 03/08/2022] [Indexed: 11/22/2022]
Abstract
BACKGROUND The ethanol of Danshen (DEE) preparation has been widely used to treat cardiac-cerebral disease and cancer. Sweating is one of the primary processing methods of Danshen, which greatly influenced its quality and pharmacological properties. Sweated and non-sweated DEE preparation combining with various synthetic drugs, adding up the possibility of herbal-drug interactions. OBJECTIVE This study explored the effects of sweated and non-sweated DEE on human and rat hepatic UGT enzymes expression and activity and proposed a potential mechanism. METHODS The expression of two processed DEE on rat UGT1A, UGT2B and nuclear receptors including pregnane X receptor (PXR), constitutive androstane receptor (CAR), and peroxisome proliferator-activated receptor α (PPARα) were investigated after intragastric administration in rats by Western blot. Enzyme activity of DEE and its active ingredients (Tanshinone I, Cryptotanshinone, and Tanshinone I) on UGT isoenzymes was evaluated by quantifying probe substrate metabolism and metabolite formation in vitro using Ultra Performance Liquid Chromatography. RESULTS The two processed DEE (5.40 g/kg) improved UGT1A (P<0.01) and UGT2B (P<0.05) protein expression, and the non-sweated DEE (2.70 g/kg) upregulated UGT2B expression protein (P<0.05), compared with the CMCNa group. On day 28, UGT1A protein expression was increased (P<0.05) both in two processed DEE groups, meanwhile the non-sweated DEE significantly enhanced UGT2B protein expression (P<0.05) on day 21, compared with the CMCNa group. The process underlying this mechanism involved with the activation of nuclear receptors CAR, PXR, and PPARα; In vitro, sweated DEE (0-80 μg/mL) significantly inhibited the activity of human UGT1A7 (P<0.05) and rat UGT1A1, 1A8, and 1A9 (P<0.05). Non-sweated DEE (0-80 μg/mL) dramatically suppressed the activity of human UGT1A1, 1A3, 1A6, 1A7, 2B4, and 2B15, and rat UGT1A1, 1A3, 1A7, and 1A9 (P<0.05); Tanshinone I (0-1 μM) inhibited the activity of human UGT1A3, 1A6, and 1A7 (P<0.01) and rat UGT1A3, 1A6, 1A7, and 1A8 (P<0.05). Cryptotanshinone (0-1 μM) remarkably inhibited the activity of human UGT1A3 and 1A7 (P<0.05) and rat UGT1A7, 1A8, and 1A9 (P<0.05). Nonetheless, Tanshinone IIA (0-2 μM) is not a potent UGT inhibitor both in humans and rats; Additionally, there existed significant differences between two processed DEE in expression of PXR, and the activity of human UGT1A1, 1A3, 1A6, and 2B15 and rat UGT1A3 and 2B15 (P<0.05). CONCLUSION The effects of two processed DEE on hepatic UGT enzyme expression and activity were different. Accordingly, the combined usage of related UGTs substrates with DEE and its monomer components preparations may call for caution, depending on the drug's exposure-response relationship and dose adjustment. Besides, it is vital to pay attention to the distinction between sweated and non-sweated Danshen in clinic, which exerted an important influence on its pharmacological activity.
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Affiliation(s)
- Jie Liu
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, Anhui, 230012, China.,Anhui Province Key Laboratory of Chinese Medicinal Formula, Hefei, Anhui,230012, China.,Institute of Traditional Chinese Medicine Resources Protection and Development, Anhui Academy of Chinese Medicine, Hefei, Anhui, 230012, China.,Anhui Province Key Laboratory of Traditional Chinese Medicine Decoction Pieces of New Manufacturing Technology, Anhui Hefei 230012, China
| | - Yun Shi
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, Anhui, 230012, China.,Anhui Province Key Laboratory of Chinese Medicinal Formula, Hefei, Anhui,230012, China.,Institute of Traditional Chinese Medicine Resources Protection and Development, Anhui Academy of Chinese Medicine, Hefei, Anhui, 230012, China
| | - Chengyuan Wu
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, Anhui, 230012, China.,Anhui Province Key Laboratory of Chinese Medicinal Formula, Hefei, Anhui,230012, China.,Institute of Traditional Chinese Medicine Resources Protection and Development, Anhui Academy of Chinese Medicine, Hefei, Anhui, 230012, China
| | - Bangzhen Hong
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, Anhui, 230012, China.,Anhui Province Key Laboratory of Chinese Medicinal Formula, Hefei, Anhui,230012, China.,Institute of Traditional Chinese Medicine Resources Protection and Development, Anhui Academy of Chinese Medicine, Hefei, Anhui, 230012, China
| | - Daiyin Peng
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, Anhui, 230012, China.,Anhui Province Key Laboratory of Chinese Medicinal Formula, Hefei, Anhui,230012, China.,Institute of Traditional Chinese Medicine Resources Protection and Development, Anhui Academy of Chinese Medicine, Hefei, Anhui, 230012, China
| | - Nianjun Yu
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, Anhui, 230012, China.,Anhui Province Key Laboratory of Chinese Medicinal Formula, Hefei, Anhui,230012, China.,Institute of Traditional Chinese Medicine Resources Protection and Development, Anhui Academy of Chinese Medicine, Hefei, Anhui, 230012, China
| | - Guokai Wang
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, Anhui, 230012, China.,Anhui Province Key Laboratory of Chinese Medicinal Formula, Hefei, Anhui,230012, China.,Institute of Traditional Chinese Medicine Resources Protection and Development, Anhui Academy of Chinese Medicine, Hefei, Anhui, 230012, China
| | - Lei Wang
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, Anhui, 230012, China.,Anhui Province Key Laboratory of Chinese Medicinal Formula, Hefei, Anhui,230012, China.,Anhui Province Key Laboratory of Traditional Chinese Medicine Decoction Pieces of New Manufacturing Technology, Anhui Hefei 230012, China
| | - Weidong Chen
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, Anhui, 230012, China.,Anhui Province Key Laboratory of Chinese Medicinal Formula, Hefei, Anhui,230012, China.,Institute of Traditional Chinese Medicine Resources Protection and Development, Anhui Academy of Chinese Medicine, Hefei, Anhui, 230012, China.,Anhui Province Key Laboratory of Traditional Chinese Medicine Decoction Pieces of New Manufacturing Technology, Anhui Hefei 230012, China
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3
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Xing H, Yang J, Ren K, Qin Z, Wang P, Zhang X, Yao Z, Gonzalez FJ, Yao X. Investigation on the metabolic characteristics of isobavachin in Psoralea corylifolia L. (Bu-gu-zhi) and its potential inhibition against human cytochrome P450s and UDP-glucuronosyltransferases. J Pharm Pharmacol 2020; 72:1865-1878. [PMID: 32750744 DOI: 10.1111/jphp.13337] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 06/09/2020] [Accepted: 06/21/2020] [Indexed: 01/16/2023]
Abstract
OBJECTIVES Isobavachin is a phenolic with anti-osteoporosis activity. This study aimed to explore its metabolic fates in vivo and in vitro, and to investigate the potential drug-drug interactions involving CYPs and UGTs. METHODS Metabolites of isobavachin in mice were first identified and characterized. Oxidation and glucuronidation study were performed using liver and intestine microsomes. Reaction phenotyping, activity correlation analysis and relative activity factor approaches were employed to identify the main CYPs and UGTs involved in isobavachin metabolism. Through kinetic modelling, inhibition mechanisms towards CYPs and UGTs were also explored. KEY FINDINGS Two glucuronides (G1 - G2) and three oxidated metabolites (M1 - M3) were identified in mice. Additionally, isobavachin underwent efficient oxidation and glucuronidation by human liver microsomes and HIM with CLint values from 5.53 to 148.79 μl/min per mg. CYP1A2, 2C19 contributed 11.3% and 17.1% to hepatic metabolism of isobavachin, respectively, with CLint values from 8.75 to 77.33 μl/min per mg. UGT1As displayed CLint values from 10.73 to 202.62 μl/min per mg for glucuronidation. Besides, significant correlation analysis also proved that CYP1A2, 2C19 and UGT1A1, 1A9 were main contributors for the metabolism of isobavachin. Furthermore, mice may be the appropriate animal model for predicting its metabolism in human. Moreover, isobavachin exhibited broad inhibition against CYP2B6, 2C9, 2C19, UGT1A1, 1A9, 2B7 with Ki values from 0.05 to 3.05 μm. CONCLUSIONS CYP1A2, 2C19 and UGT1As play an important role in isobavachin metabolism. Isobavachin demonstrated broad-spectrum inhibition of CYPs and UGTs.
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Affiliation(s)
- Han Xing
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Jing Yang
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Kaidi Ren
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Zifei Qin
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Guangdong Provincial Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, China
| | - Peile Wang
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Xiaojian Zhang
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Zhihong Yao
- Guangdong Provincial Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, China.,College of Pharmacy, Jinan University, Guangzhou, China
| | - Frank J Gonzalez
- Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Xinsheng Yao
- Guangdong Provincial Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, China.,College of Pharmacy, Jinan University, Guangzhou, China
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Gao L, Qin Z, Zhang B, Yin Z, Zhang X, Yang J. An investigation of the metabolic activity, isozyme contribution, species differences and potential drug–drug interactions of PI-103, and the identification of efflux transporters for PI-103-O-glucuronide in HeLa1A9 cells. RSC Adv 2020; 10:9610-9622. [PMID: 35497201 PMCID: PMC9050161 DOI: 10.1039/c9ra09906a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Accepted: 12/30/2019] [Indexed: 01/06/2023] Open
Abstract
PI-103 is a phosphatidylinositol 3-kinase inhibitor that includes multiple receptor affinity modifications, and it is also a therapeutic drug candidate primarily for human malignant tumors. However, its metabolic fate and potential drug–drug interactions involving human cytochrome P450 (CYP) and UDP-glucuronosyltransferases (UGT) enzymes remain unknown. In this study, our results demonstrated that the intrinsic clearance (CLint) values of oxidated metabolite (M1) in human liver microsomes (HLM) and human intestine microsomes (HIM) were 3.10 and 0.08 μL min−1 mg−1, respectively, while PI-103 underwent efficient glucuronidation with CLint values of 15.59 and 211.04 μL min−1 mg−1 for mono-glucuronide (M2) by HLM and HIM, respectively. Additionally, reaction phenotyping results indicated that CYP1A1 (51.50 μL min−1 mg−1), 1A2 (46.96 μL min−1 mg−1), and UGT1A1 (18.80 μL min−1 mg−1), 1A7 (8.52 μL min−1 mg−1), 1A8 (8.38 μL min−1 mg−1), 1A9 (34.62 μL min−1 mg−1), 1A10 (107.01 μL min−1 mg−1) were the most important contributors for the oxidation and glucuronidation of PI-103. Chemical inhibition assays also suggest that CYP1A2 and UGT1A1, 1A9 play a predominant role in the metabolism of PI-103 in HLM. Significant activity correlations were detected between phenacetin-N-deacetylation and M1 (r = 0.760, p = 0.004) as well as β-estradiol-3-O-glucuronide and M2 (r = 0.589, p = 0.044), and propofol-O-glucuronidation and M2 (r = 0.717, p = 0.009). Furthermore, the metabolism of PI-103 revealed marked species differences, and dogs, rats, mice and mini-pigs were not the appropriate animal models. Gene silencing of breast cancer resistance protein (BCRP) or multidrug resistance-associated protein (MRPs) transporter results indicated that M2 was mainly excreted by BCRP, MRP1 and MRP4 transporters. Moreover, PI-103 displayed broad-spectrum inhibition towards human CYPs and UGTs isozymes with IC50 values ranging from 0.33 to 6.89 μM. Among them, PI-103 showed potent non-competitive inhibitory effects against CYP1A2, 2C19, 2E1 with IC50 and Ki values of less than 1 μM. In addition, PI-103 exhibited moderate non-competitive inhibition against UGT1A7, 2B7, and moderate mixed-type inhibition towards CYP2B6, 2C9 and UGT1A3. Their IC50 and Ki values were 1.16–6.89 and 0.56–5.64 μM, respectively. In contrast, PI-103 could activate the activity of UGT1A4 in a mechanistic two-site model with a Ki value of 13.76 μM. Taken together, PI-103 was subjected to significant hepatic and intestinal metabolism. CYP1A1, 1A2 and UGT1A1, 1A7, 1A8, 1A9, 1A10 were the main contributing isozymes, whereas BCRP, MRP1 and MRP4 contributed most to the efflux excretion of M2. Meanwhile, PI-103 had a potent and broad-spectrum inhibitory effect against human CYPs and UGTs isozymes. These findings could improve understanding of the metabolic fates and efflux transport of PI-103. The inhibited human CYP and UGT activities could trigger harmful DDIs when PI-103 is co-administered with clinical drugs primarily cleared by these CYPs or UGTs isoforms. Additional in vivo studies are required to evaluate the clinical significance of the data presented herein. Metabolic activity and disposition characteristics of PI-103.![]()
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Affiliation(s)
- Li Gao
- Department of Pharmacy
- The First Affiliated Hospital of Zhengzhou University
- Zhengzhou 450052
- China
- Henan Key Laboratory of Precision Clinical Pharmacy
| | - Zifei Qin
- Department of Pharmacy
- The First Affiliated Hospital of Zhengzhou University
- Zhengzhou 450052
- China
- Henan Key Laboratory of Precision Clinical Pharmacy
| | - Beibei Zhang
- Department of Pharmacy
- The First Affiliated Hospital of Zhengzhou University
- Zhengzhou 450052
- China
- Henan Key Laboratory of Precision Clinical Pharmacy
| | - Zhao Yin
- Department of Pharmacy
- The First Affiliated Hospital of Zhengzhou University
- Zhengzhou 450052
- China
- Henan Key Laboratory of Precision Clinical Pharmacy
| | - Xiaojian Zhang
- Department of Pharmacy
- The First Affiliated Hospital of Zhengzhou University
- Zhengzhou 450052
- China
- Henan Key Laboratory of Precision Clinical Pharmacy
| | - Jing Yang
- Department of Pharmacy
- The First Affiliated Hospital of Zhengzhou University
- Zhengzhou 450052
- China
- Henan Key Laboratory of Precision Clinical Pharmacy
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5
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Simulation-Based Analysis of the Impact of Renal Impairment on the Pharmacokinetics of Highly Metabolized Compounds. Pharmaceutics 2019; 11:pharmaceutics11030105. [PMID: 30832339 PMCID: PMC6471170 DOI: 10.3390/pharmaceutics11030105] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 02/25/2019] [Accepted: 02/27/2019] [Indexed: 12/17/2022] Open
Abstract
Renal impairment (RI) is a highly prevalent disease which can alter the pharmacokinetics (PK) of xenobiotics, including those that are predominately metabolized. The expression and activity of drug metabolizing enzymes (DMEs) and protein binding of compounds has been demonstrated to be affected in RI. A simulation based approach allows for the characterization of the impact of changes in these factors on the PK of compounds which are highly metabolized and allows for improved prediction of PK in RI. Simulations with physiologically based pharmacokinetic (PBPK) modeling was utilized to define the impact of these factors in PK in RI for a model substrate, nifedipine. Changes in fraction unbound and DME expression/activity had profound effects on PK in RI. Increasing fraction unbound and DME expression resulted in a reduction in exposure of nifedipine, while the reduction of DME activity resulted in an increase in exposure. In vitro and preclinical data were utilized to inform simulations for nifedipine, sildenafil and zidovudine. Increasing fraction unbound and changes in the expression/activity of DMEs led to improved predictions of PK. Further characterization of the impact of RI on these factors is warranted in order to better inform a priori predictions of PK in RI.
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Kala S, Watson B, Zhang JG, Papp E, Guzman Lenis M, Dennehy M, Cameron DW, Harrigan PR, Serghides L. Improving the clinical relevance of a mouse pregnancy model of antiretroviral toxicity; a pharmacokinetic dosing-optimization study of current HIV antiretroviral regimens. Antiviral Res 2018; 159:45-54. [PMID: 30236532 DOI: 10.1016/j.antiviral.2018.09.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 09/05/2018] [Accepted: 09/14/2018] [Indexed: 12/16/2022]
Abstract
Animal models can be useful tools for the study of HIV antiretroviral (ARV) safety/toxicity in pregnancy and the mechanisms that underlie ARV-associated adverse events. The utility and translatability of animal model-based ARV safety/toxicity data is improved if ARVs are tested in clinically relevant concentrations. The objective of this work was to improve the clinical relevance of our mouse pregnancy model of ARV toxicity, by determining the doses of currently prescribed ARV regimens that would yield human therapeutic plasma concentrations. Pregnant mice were administered increasing doses of ARV combinations by oral gavage, followed by measurement of drug concentrations in the maternal plasma and amniotic fluid. Concentrations of ten different ARVs in maternal plasma and amniotic fluid samples of pregnant mice are presented, with dosing optimization to yield human pregnancy-relevant plasma drug concentrations. We have proposed optimal dosing for different regimen component drugs to achieve human therapeutic plasma levels, so that a clinically relevant standard dosing is established. A review of related ARV pharmacokinetic studies in (pregnant/non-pregnant) rodents and human pregnancy is also shown. We hope these data will inform and encourage the use of mouse pregnancy models in the study of ARV safety/toxicity.
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Affiliation(s)
- Smriti Kala
- Toronto General Hospital Research Institute, University Health Network (UHN), Toronto, Canada
| | - Birgit Watson
- British Columbia Centre for Excellence in HIV/AIDS, Vancouver, Canada
| | - Jeremy Guijun Zhang
- Clinical Investigation Unit at the Ottawa Hospital Research Institute, Ottawa, Canada; Department of Medicine, University of Ottawa at the Ottawa Hospital / Research Institute, Ottawa, Canada
| | - Eszter Papp
- Toronto General Hospital Research Institute, University Health Network (UHN), Toronto, Canada
| | - Monica Guzman Lenis
- Toronto General Hospital Research Institute, University Health Network (UHN), Toronto, Canada
| | - Michelle Dennehy
- Clinical Investigation Unit at the Ottawa Hospital Research Institute, Ottawa, Canada; Department of Medicine, University of Ottawa at the Ottawa Hospital / Research Institute, Ottawa, Canada
| | - D William Cameron
- Clinical Investigation Unit at the Ottawa Hospital Research Institute, Ottawa, Canada; Department of Medicine, University of Ottawa at the Ottawa Hospital / Research Institute, Ottawa, Canada
| | - P Richard Harrigan
- Division of AIDS, Department of Medicine, University of British Columbia, Vancouver Canada
| | - Lena Serghides
- Toronto General Hospital Research Institute, University Health Network (UHN), Toronto, Canada; Department of Immunology and Institute of Medical Sciences, University of Toronto, Toronto, Canada; Women's College Research Institute, Women's College Hospital, Toronto, Canada.
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7
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You BH, Gong EC, Choi YH. Inhibitory Effect of Sauchinone on UDP-Glucuronosyltransferase (UGT) 2B7 Activity. Molecules 2018; 23:molecules23020366. [PMID: 29425147 PMCID: PMC6017115 DOI: 10.3390/molecules23020366] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Revised: 02/05/2018] [Accepted: 02/07/2018] [Indexed: 01/03/2023] Open
Abstract
Herb-drug interaction (HDI) limits clinical application of herbs and drugs, and inhibition of herbs towards uridine diphosphate (UDP)-glucuronosyltransferases (UGTs) has gained attention as one of the important reasons to cause HDIs. Sauchinone, an active lignan isolated from aerial parts of Saururus chinensis (Saururacease), possesses anti-oxidant, anti-inflammatory, and anti-viral activities. In pharmacokinetics of sauchinone, sauchinone is highly distributed to the liver, forming extensive metabolites of sauchinone via UGTs in the liver. Thus, we investigated whether sauchinone inhibited UGTs to explore potential of sauchinone-drug interactions. In human liver microsomes (HLMs), sauchinone inhibited activities of UGT1A1, 1A3, 1A6, and 2B7 with IC50 values of 8.83, 43.9, 0.758, and 0.279 μM, respectively. Sauchinone also noncompetitively inhibited UGT1A6 and 2B7 with Ki values of 1.08 and 0.524 μM, respectively. In in vivo interaction study using mice, sauchinone inhibited UGT2B7-mediated zidovudine metabolism, resulting in increased systemic exposure of zidovudine when sauchinone and zidovudine were co-administered together. Our results indicated that there is potential HDI between sauchinone and drugs undergoing UGT2B7-mediated metabolism, possibly contributing to the safe use of sauchinone and drug combinations.
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Affiliation(s)
- Byoung Hoon You
- College of Pharmacy and Intergrated Research Institute for Drug Development, Dongguk University-Seoul, 32 Dongguk-lo, Ilsandong-gu, Goyang, Gyonggi-do 10326, Korea.
| | - Eun Chae Gong
- College of Pharmacy and Intergrated Research Institute for Drug Development, Dongguk University-Seoul, 32 Dongguk-lo, Ilsandong-gu, Goyang, Gyonggi-do 10326, Korea.
| | - Young Hee Choi
- College of Pharmacy and Intergrated Research Institute for Drug Development, Dongguk University-Seoul, 32 Dongguk-lo, Ilsandong-gu, Goyang, Gyonggi-do 10326, Korea.
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8
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Wang F, Miao MX, Sun BB, Wang ZJ, Tang XG, Chen Y, Zhao KJ, Liu XD, Liu L. Acute liver failure enhances oral plasma exposure of zidovudine in rats by downregulation of hepatic UGT2B7 and intestinal P-gp. Acta Pharmacol Sin 2017; 38:1554-1565. [PMID: 28770824 DOI: 10.1038/aps.2017.54] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Accepted: 04/05/2017] [Indexed: 12/12/2022] Open
Abstract
HIV infection is often associated with liver failure, which alters the pharmacokinetics of many drugs. In this study we investigated whether acute liver failure (ALF) altered the pharmacokinetics of the first-line anti-HIV agent zidovudine (AZT), a P-gp/BCRP substrate, in rats. ALF was induced in rats by injecting thioacetamide (TAA, 300 mg·kg-1·d-1, ip) for 2 days. On the second day after the last injection of TAA, the pharmacokinetics of AZT was investigated following both oral (20 mg/kg) and intravenous (10 mg/kg) administration. ALF significantly increased the plasma concentrations of AZT after both oral and intravenous doses of AZT, but without affecting the urinary excretion of AZT. AZT metabolism was studied in rat hepatic microsomes in vitro, which revealed that hepatic UGT2B7 was the main enzyme responsible for the formation of AZT O-glucuronide (GAZT); ALF markedly impaired AZT metabolism in hepatic microsomes, which was associated with the significantly decreased hepatic UGT2B7 expression. Intestinal absorption of AZT was further studied in rats via in situ single-pass intestinal perfusion. Intestinal P-gp function and intestinal integrity were assessed with rhodamine 123 and FD-70, respectively. We found that ALF significantly downregulated intestinal P-gp expression, and had a smaller effect on intestinal BCRP. Further studies showed that ALF significantly increased the intestinal absorption of both rhodamine 123 and AZT without altering intestinal integrity, thus confirming an impairment of intestinal P-gp function. In conclusion, ALF significantly increases the oral plasma exposure of AZT in rats, a result partly attributed to the impaired function and expression of hepatic UGT2B7 and intestinal P-gp.
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Barnette DA, Johnson BP, Pouncey DL, Nshimiyimana R, Desrochers LP, Goodwin TE, Miller GP. Stereospecific Metabolism of R- and S-Warfarin by Human Hepatic Cytosolic Reductases. Drug Metab Dispos 2017; 45:1000-1007. [PMID: 28646078 PMCID: PMC5539582 DOI: 10.1124/dmd.117.075929] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2017] [Accepted: 06/06/2017] [Indexed: 01/10/2023] Open
Abstract
Coumadin (rac-warfarin) is the most commonly used anticoagulant in the world; however, its clinical use is often challenging because of its narrow therapeutic range and interindividual variations in response. A critical contributor to the uncertainty is variability in warfarin metabolism, which includes mostly oxidative but also reductive pathways. Reduction of each warfarin enantiomer yields two warfarin alcohol isomers, and the corresponding four alcohols retain varying levels of anticoagulant activity. Studies on the kinetics of warfarin reduction have often lacked resolution of parent-drug enantiomers and have suffered from coelution of pairs of alcohol metabolites; thus, those studies have not established the importance of individual stereospecific reductive pathways. We report the first steady-state analysis of R- and S-warfarin reduction in vitro by pooled human liver cytosol. As determined by authentic standards, the major metabolites were 9R,11S-warfarin alcohol for R-warfarin and 9S,11S-warfarin alcohol for S-warfarin. R-warfarin (Vmax 150 pmol/mg per minute, Km 0.67 mM) was reduced more efficiently than S-warfarin (Vmax 27 pmol/mg per minute, Km 1.7 mM). Based on inhibitor phenotyping, carbonyl reductase-1 dominated R-and S-warfarin reduction, followed by aldo-keto reductase-1C3 and then other members of that family. Overall, the carbonyl at position 11 undergoes stereospecific reduction by multiple enzymes to form the S alcohol for both drug enantiomers, yet R-warfarin undergoes reduction preferentially. This knowledge will aid in assessing the relative importance of reductive pathways for R- and S-warfarin and factors influencing levels of pharmacologically active parent drugs and metabolites, thus impacting patient dose responses.
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Affiliation(s)
- Dustyn A Barnette
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, Little Rock (D.A.B., D.L.P., G.P.M.), Department of Chemistry, University of Central Arkansas, Conway (B.P.J.), and Department of Chemistry, Hendrix College, Conway (R.N., L.P.D., T.E.G.), Arkansas
| | - Bryce P Johnson
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, Little Rock (D.A.B., D.L.P., G.P.M.), Department of Chemistry, University of Central Arkansas, Conway (B.P.J.), and Department of Chemistry, Hendrix College, Conway (R.N., L.P.D., T.E.G.), Arkansas
| | - Dakota L Pouncey
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, Little Rock (D.A.B., D.L.P., G.P.M.), Department of Chemistry, University of Central Arkansas, Conway (B.P.J.), and Department of Chemistry, Hendrix College, Conway (R.N., L.P.D., T.E.G.), Arkansas
| | - Robert Nshimiyimana
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, Little Rock (D.A.B., D.L.P., G.P.M.), Department of Chemistry, University of Central Arkansas, Conway (B.P.J.), and Department of Chemistry, Hendrix College, Conway (R.N., L.P.D., T.E.G.), Arkansas
| | - Linda P Desrochers
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, Little Rock (D.A.B., D.L.P., G.P.M.), Department of Chemistry, University of Central Arkansas, Conway (B.P.J.), and Department of Chemistry, Hendrix College, Conway (R.N., L.P.D., T.E.G.), Arkansas
| | - Thomas E Goodwin
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, Little Rock (D.A.B., D.L.P., G.P.M.), Department of Chemistry, University of Central Arkansas, Conway (B.P.J.), and Department of Chemistry, Hendrix College, Conway (R.N., L.P.D., T.E.G.), Arkansas
| | - Grover P Miller
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, Little Rock (D.A.B., D.L.P., G.P.M.), Department of Chemistry, University of Central Arkansas, Conway (B.P.J.), and Department of Chemistry, Hendrix College, Conway (R.N., L.P.D., T.E.G.), Arkansas
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10
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Yao Z, Li S, Qin Z, Hong X, Dai Y, Wu B, Ye W, Gonzalez FJ, Yao X. Characterization of human UDP-glucuronosyltransferases responsible for glucuronidation and inhibition of norbakuchinic acid, a primary metabolite of hepatotoxicity and nephrotoxicity component bakuchiol inPsoralea corylifolia L. RSC Adv 2017. [DOI: 10.1039/c7ra10376j] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Norbakuchinic acid (NBKA) is the most abundant metabolite of bakuchiol (a hepatotoxicity and nephrotoxicity component inPsoralea corylifoliaL.) in plasma and urine.
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Affiliation(s)
- Zhihong Yao
- College of Pharmacy
- Jinan University
- Guangzhou 510632
- P. R. China
- Guangdong Provincial Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research
| | - Shishi Li
- College of Pharmacy
- Jinan University
- Guangzhou 510632
- P. R. China
| | - Zifei Qin
- College of Pharmacy
- Jinan University
- Guangzhou 510632
- P. R. China
- Guangdong Provincial Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research
| | - Xiaodan Hong
- College of Pharmacy
- Jinan University
- Guangzhou 510632
- P. R. China
- Guangzhou Research and Creativity Biotechnology Co. Ltd
| | - Yi Dai
- College of Pharmacy
- Jinan University
- Guangzhou 510632
- P. R. China
- Guangdong Provincial Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research
| | - Baojian Wu
- College of Pharmacy
- Jinan University
- Guangzhou 510632
- P. R. China
- Guangdong Provincial Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research
| | - Wencai Ye
- College of Pharmacy
- Jinan University
- Guangzhou 510632
- P. R. China
- Guangdong Provincial Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research
| | - Frank J. Gonzalez
- Laboratory of Metabolism
- Center for Cancer Research
- National Cancer Institute
- National Institutes of Health
- Bethesda
| | - Xinsheng Yao
- College of Pharmacy
- Jinan University
- Guangzhou 510632
- P. R. China
- Guangdong Provincial Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research
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Dong D, Quan E, Yuan X, Xie Q, Li Z, Wu B. Sodium Oleate-Based Nanoemulsion Enhances Oral Absorption of Chrysin through Inhibition of UGT-Mediated Metabolism. Mol Pharm 2016; 14:2864-2874. [DOI: 10.1021/acs.molpharmaceut.6b00851] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Dong Dong
- International
Ocular Surface Research Center and Institute of Ophthalmology, Jinan University Medical School, Guangzhou, China
| | - Enxi Quan
- Division
of Pharmaceutics, College of Pharmacy, Jinan University, Guangzhou, China
| | - Xue Yuan
- Division
of Pharmaceutics, College of Pharmacy, Jinan University, Guangzhou, China
| | - Qian Xie
- Division
of Pharmaceutics, College of Pharmacy, Jinan University, Guangzhou, China
| | - Zhijie Li
- International
Ocular Surface Research Center and Institute of Ophthalmology, Jinan University Medical School, Guangzhou, China
| | - Baojian Wu
- Division
of Pharmaceutics, College of Pharmacy, Jinan University, Guangzhou, China
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12
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Xin H, Qi XY, Wu JJ, Wang XX, Li Y, Hong JY, He W, Xu W, Ge GB, Yang L. Assessment of the inhibition potential of Licochalcone A against human UDP-glucuronosyltransferases. Food Chem Toxicol 2016; 90:112-22. [DOI: 10.1016/j.fct.2016.02.007] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2015] [Revised: 01/24/2016] [Accepted: 02/05/2016] [Indexed: 01/19/2023]
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13
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Xiao W, Lu MH. Comparison of the inhibition capability of oleanolic acid and betulinic acid towards drug-metabolizing enzymes. Afr Health Sci 2015; 15:1011-5. [PMID: 26957994 DOI: 10.4314/ahs.v15i3.40] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Human UDP-glucuronosyltransferases (UGTs) are important membrane proteins located in endoplasmic reticulum, and play important roles in metabolism of a variety of endogenous and exogenous compounds. AIMS To determine the influence of subtle difference in the structure of oleanolic acid and betulinic acid towards the inhibition towards the activity of UGT isoforms. METHODS In vitro glucuronidation of 4-methylumbelliferone (4-MU) reaction was employed as the probe reaction to determine the inhibition of these two compounds towards UGTs' activity. RESULTS The inhibition of capability of oleanolic acid towards UGT1A6 and UGT1A8 were higher than betulinic acid. However, no significant difference was observed for the inhibition of oleanolic acid and betulinic acid towards UGT1A7. Furthermore, concentration-dependent behaviour was determined for the inhibition of oleanolic acid and betulinic acid towards UGT1A6 and UGT1A8. At various concentrations of oleanolic acid and betulinic acid, the inhibition of oleanolic acid towards UGT1A6 and UGT1A8 was higher than betulinic acid. CONSLUSION Given that UGT1A6 and UGT1A8 play key role in the the inhibition of oleanolic acid towards UGT1A6 and UGT1A8 will induce drug-drug interaction and the risk of diseases.
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Affiliation(s)
- Wei Xiao
- Department of Infectious Diseases, Xiangya Hospital of Central South University, Changsha, Hu'nan 410008, China
| | - Meng-Hou Lu
- Department of Infectious Diseases, Xiangya Hospital of Central South University, Changsha, Hu'nan 410008, China
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14
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Sun H, Zhou X, Zhang X, Wu B. Decreased Expression of Multidrug Resistance-Associated Protein 4 (MRP4/ABCC4) Leads to Reduced Glucuronidation of Flavonoids in UGT1A1-Overexpressing HeLa Cells: The Role of Futile Recycling. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:6001-6008. [PMID: 26066637 DOI: 10.1021/acs.jafc.5b00983] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
In this study, the role of futile recycling (or deglucuronidation) in the disposition of two flavonoids (i.e., genistein and apigenin) was explored using UGT1A1-overexpressing HeLa cells (or HeLa1A1 cells). Glucuronidation of the flavonoids by HeLa1A1 cell lysate followed the substrate inhibition kinetics (Vmax = 0.10 nmol/min/mg, Km = 0.54 μM, and Ksi = 2.0 μM for genistein; Vmax = 0.19 nmol/min/mg, Km = 0.56 μM, and Ksi = 3.7 μM for apigenin). Glucuronide was efficiently generated and excreted after incubation of the cells with the aglycone (at doses of 1.25-20 nmol). The excretion rates were 0.40-0.69 and 0.84-1.1 nmol/min/mg protein for genistein glucuronide (GG) and apigenin glucuronide (AG), respectively. Furthermore, glucuronide excretion and total glucuronidation were significantly reduced in MRP4 knocked-down as compared to control cells. The alterations were well characterized by a two-compartment pharmacokinetic model incorporating the process of futile recycling (defined by a first-order rate constant, Kde). The derived Kde values were 15 and 25 h(-1) for GG and AG, respectively. This was well consistent with the in vitro observation that AG was subjected to more efficient futile recycling compared to GG. In conclusion, futile recycling was involved in cellular glucuronidation, accounting for transporter-dependent glucuronidation of flavonoids.
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Affiliation(s)
- Hua Sun
- Division of Pharmaceutics, College of Pharmacy, Jinan University, 601 Huangpu Avenue West, Guangzhou 510632, China
| | - Xiaotong Zhou
- Division of Pharmaceutics, College of Pharmacy, Jinan University, 601 Huangpu Avenue West, Guangzhou 510632, China
| | - Xingwang Zhang
- Division of Pharmaceutics, College of Pharmacy, Jinan University, 601 Huangpu Avenue West, Guangzhou 510632, China
| | - Baojian Wu
- Division of Pharmaceutics, College of Pharmacy, Jinan University, 601 Huangpu Avenue West, Guangzhou 510632, China
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