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Hanioka N, Isobe T, Saito K, Nagaoka K, Mori Y, Jinno H, Ohkawara S, Tanaka-Kagawa T. Glucuronidation of tizoxanide, an active metabolite of nitazoxanide, in liver and small intestine: Species differences in humans, monkeys, dogs, rats, and mice and responsible UDP-glucuronosyltransferase isoforms in humans. Comp Biochem Physiol C Toxicol Pharmacol 2024; 283:109962. [PMID: 38889874 DOI: 10.1016/j.cbpc.2024.109962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 06/05/2024] [Accepted: 06/13/2024] [Indexed: 06/20/2024]
Abstract
Tizoxanide (TZX) is an active metabolite of nitazoxanide (NTZ) originally developed as an antiparasitic agent, and is predominantly metabolized into TZX glucuronide. In the present study, TZX glucuronidation by the liver and intestinal microsomes of humans, monkeys, dogs, rats, and mice, and recombinant human UDP-glucuronosyltransferase (UGT) were examined. The kinetics of TZX glucuronidation by the liver and intestinal microsomes followed the Michaelis-Menten or biphasic model, with species-specific variations in the intrinsic clearance (CLint). Rats and mice exhibited the highest CLint values for liver microsomes, while mice and rats were the highest for intestinal microsomes. Among human UGTs, UGT1A1 and UGT1A8 demonstrated significant glucuronidation activity. Estradiol and emodin inhibited TZX glucuronidation activities in the human liver and intestinal microsomes in a dose-dependent manner, with emodin showing stronger inhibition in the intestinal microsomes. These results suggest that the roles of UGT enzymes in TZX glucuronidation in the liver and small intestine differ extensively across species and that UGT1A1 and/or UGT1A8 mainly contribute to the metabolism and elimination of TZX in humans. This study presents the relevant and novel-appreciative report on TZX metabolism catalyzed by UGT enzymes, which may aid in the assessment of the antiparasitic, antibacterial, and antiviral activities of NTZ for the treatment of various infections.
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Affiliation(s)
- Nobumitsu Hanioka
- Department of Health Pharmacy, Yokohama University of Pharmacy, 601 Matano-cho, Totsuka-ku, Yokohama 245-0066, Japan.
| | - Takashi Isobe
- Department of Health Pharmacy, Yokohama University of Pharmacy, 601 Matano-cho, Totsuka-ku, Yokohama 245-0066, Japan
| | - Keita Saito
- School of Pharmacy, Shujitsu University, 1-6-1 Nishigawara, Naka-ku, Okayama 703-8516, Japan
| | - Kenjiro Nagaoka
- College of Pharmaceutical Sciences, Matsuyama University, 4-2 Bunkyo-cho, Matsuyama 790-8578, Japan
| | - Yoko Mori
- Division of Environmental Chemistry, Ntional Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki 210-9501, Japan
| | - Hideto Jinno
- Faculty of Pharmacy, Meijo University, 150 Yagotoyama, Tempaku-ku, Nagoya 468-8503, Japan
| | - Susumu Ohkawara
- Department of Health Pharmacy, Yokohama University of Pharmacy, 601 Matano-cho, Totsuka-ku, Yokohama 245-0066, Japan
| | - Toshiko Tanaka-Kagawa
- Department of Health Pharmacy, Yokohama University of Pharmacy, 601 Matano-cho, Totsuka-ku, Yokohama 245-0066, Japan
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Hanioka N, Isobe T, Saito K, Nagaoka K, Mori Y, Jinno H, Ohkawara S, Tanaka-Kagawa T. Hepatic glucuronidation of tetrabromobisphenol A and tetrachlorobisphenol A: interspecies differences in humans and laboratory animals and responsible UDP-glucuronosyltransferase isoforms in humans. Arch Toxicol 2024; 98:837-848. [PMID: 38182911 DOI: 10.1007/s00204-023-03659-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Accepted: 12/07/2023] [Indexed: 01/07/2024]
Abstract
Tetrabromobisphenol A (TBBPA) and tetrachlorobisphenol A (TCBPA), bisphenol A (BPA) analogs, are endocrine-disrupting chemicals predominantly metabolized into glucuronides by UDP-glucuronosyltransferase (UGT) enzymes in humans and rats. In the present study, TBBPA and TCBPA glucuronidation by the liver microsomes of humans and laboratory animals (monkeys, dogs, minipigs, rats, mice, and hamsters) and recombinant human hepatic UGTs (10 isoforms) were examined. TBBPA glucuronidation by the liver microsomes followed the Michaelis-Menten model kinetics in humans, rats, and hamsters and the biphasic model in monkeys, dogs, minipigs, and mice. The CLint values based on the Eadie-Hofstee plots were mice (147) > monkeys (122) > minipigs (108) > humans (100) and rats (98) > dogs (81) > hamsters (47). TCBPA glucuronidation kinetics by the liver microsomes followed the biphasic model in all species except for minipigs, which followed the Michaelis-Menten model. The CLint values were monkeys (172) > rats (151) > mice (134) > minipigs (104), dogs (102), and humans (100) > hamsters (88). Among recombinant human UGTs examined, UGT1A1 and UGT1A9 showed higher TBBPA and TCBPA glucuronidation abilities. The kinetics of TBBPA and TCBPA glucuronidation followed the substrate inhibition model in UGT1A1 and the Michaelis-Menten model in UGT1A9. The CLint values were UGT1A1 (100) > UGT1A9 (42) for TBBPA glucuronidation and UGT1A1 (100) > UGT1A9 (53) for TCBPA glucuronidation, and the activities at high substrate concentration ranges were higher in UGT1A9 than in UGT1A1 for both TBBPA and TCBPA. These results suggest that the glucuronidation abilities toward TBBPA and TCBPA in the liver differ extensively across species, and that UGT1A1 and UGT1A9 expressed in the liver mainly contribute to the metabolism and detoxification of TBBPA and TCBPA in humans.
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Affiliation(s)
- Nobumitsu Hanioka
- Department of Health Pharmacy, Yokohama University of Pharmacy, 601 Matano-cho, Totsuka-ku, Yokohama, 245-0066, Japan.
| | - Takashi Isobe
- Department of Health Pharmacy, Yokohama University of Pharmacy, 601 Matano-cho, Totsuka-ku, Yokohama, 245-0066, Japan
| | - Keita Saito
- School of Pharmacy, Shujitsu University, 1-6-1 Nishigawara, Naka-ku, Okayama, 703-8516, Japan
| | - Kenjiro Nagaoka
- College of Pharmaceutical Sciences, Matsuyama University, 4-2 Bunkyo-cho, Matsuyama, 790-8578, Japan
| | - Yoko Mori
- Health and Environmental Risk Division, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, 305-8506, Japan
| | - Hideto Jinno
- Faculty of Pharmacy, Meijo University, 150 Yagotoyama, Tempaku-ku, Nagoya, 468-8503, Japan
| | - Susumu Ohkawara
- Department of Health Pharmacy, Yokohama University of Pharmacy, 601 Matano-cho, Totsuka-ku, Yokohama, 245-0066, Japan
| | - Toshiko Tanaka-Kagawa
- Department of Health Pharmacy, Yokohama University of Pharmacy, 601 Matano-cho, Totsuka-ku, Yokohama, 245-0066, Japan
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Wenzel C, Lapczuk-Romanska J, Malinowski D, Ostrowski M, Drozdzik M, Oswald S. Comparative Intra-Subject Analysis of Gene Expression and Protein Abundance of Major and Minor Drug Metabolizing Enzymes in Healthy Human Jejunum and Liver. Clin Pharmacol Ther 2024; 115:221-230. [PMID: 37739780 DOI: 10.1002/cpt.3055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 09/10/2023] [Indexed: 09/24/2023]
Abstract
First pass metabolism by phase I and phase II enzymes in the intestines and liver is a major determinant of the oral bioavailability of many drugs. Several studies analyzed expressions of major drug-metabolizing enzymes (DMEs), such as CYP3A4 and UGT1A1 in the human gut and liver. However, there is still a lack of knowledge regarding other DMEs (i.e., "minor" DMEs), although several clinically relevant drugs are affected by those enzymes. Moreover, there is very limited intra-subject data on hepatic and intestinal expression levels of minor DMEs. To fill this gap of knowledge, we analyzed gene expression (quantitative real-time polymerase chain reaction) and protein abundance (targeted proteomics) of 24 clinically relevant DMEs, that is, carboxylesterases (CES), UDP-glucuronosyltransferases (UGT), and cytochrome P450 (CYP)-enzymes. We performed our analysis using jejunum and liver tissue specimens from the same 11 healthy organ donors (8 men and 3 women, aged 19-60 years). Protein amounts of all investigated DMEs, with the exception of CYP4A11, were detected in human liver samples. CES2, CYP2C18, CYP3A4, and UGT2B17 protein abundance was similar or even higher in the jejunum, and all other DMEs were found in higher amounts in the liver. Significant correlations between gene expression and protein levels were observed only for 2 of 15 jejunal, but 13 of 23 hepatic DMEs. Intestinal and hepatic protein amounts only significantly correlated for CYP3A4 and UGT1A3. Our results demonstrated a notable variability between the individuals, which was even higher in the intestines than in the liver. Our intrasubject analysis of DMEs in the jejunum and liver from healthy donors, may be useful for physiologically-based pharmacokinetic-based modeling and prediction in order to improve efficacy and safety of oral drug therapy.
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Affiliation(s)
- Christoph Wenzel
- Department of Pharmacology, University Medicine Greifswald, Greifswald, Germany
| | - Joanna Lapczuk-Romanska
- Department of Experimental and Clinical Pharmacology, Pomeranian Medical University, Szczecin, Poland
| | - Damian Malinowski
- Department of Pharmacokinetics and Therapeutic Drug Monitoring, Pomeranian Medical University, Szczecin, Poland
| | - Marek Ostrowski
- Department of Pharmacokinetics and Therapeutic Drug Monitoring, Pomeranian Medical University, Szczecin, Poland
- Department of General and Transplantation Surgery, Pomeranian Medical University, Szczecin, Poland
| | - Marek Drozdzik
- Department of Experimental and Clinical Pharmacology, Pomeranian Medical University, Szczecin, Poland
| | - Stefan Oswald
- Institute of Pharmacology and Toxicology, Rostock University Medical Center, Rostock, Germany
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Zhou Y, Dong H, Fan J, Zhu M, Liu L, Wang Y, Tang P, Chen X. Cytochrome P450 2B6 and UDP-Glucuronosyltransferase Enzyme-Mediated Clearance of Ciprofol (HSK3486) in Humans: The Role of Hepatic and Extrahepatic Metabolism. Drug Metab Dispos 2024; 52:106-117. [PMID: 38071562 DOI: 10.1124/dmd.123.001484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 11/01/2023] [Accepted: 12/06/2023] [Indexed: 12/22/2023] Open
Abstract
Ciprofol (HSK3486) is a novel intravenous agent for general anesthesia. In humans, HSK3486 mainly undergoes glucuronidation to form M4 [fraction of clearance (fCL): 62.6%], followed by the formation of monohydroxylated metabolites that further undergo glucuronidation and sulfation to produce M5-1, M5-2, M5-3, and M3 (summed fCL: 35.2%). However, the complete metabolic pathways of HSK3486 in humans remain unclear. In this study, by comparison with chemically synthesized reference standards, three monohydroxylated metabolites [M7-1, 4-hydroxylation with an unbound intrinsic clearance (CLint,u) of 2211 μl/min/mg; M7-2, ω-hydroxylation with a CLint,u of 600 μl/min/mg; and M7-3, (ω-1)-hydroxylation with a CLint,u of 78.4 μl/min/mg] were identified in human liver microsomes, and CYP2B6 primarily catalyzed their formation. In humans, M7-1 was shown to undergo glucuronidation at the 4-position and 1-position by multiple UDP-glucuronosyltransferases (UGTs) to produce M5-1 and M5-3, respectively, or was metabolized to M3 by cytosolic sulfotransferases. M7-2 was glucuronidated at the ω position by UGT1A9, 2B4, and 2B7 to form M5-2. UGT1A9 predominantly catalyzed the glucuronidation of HSK3486 (M4). The CLint,u values for M4 formation in human liver and kidney microsomes were 1028 and 3407 μl/min/mg, respectively. In vitro to in vivo extrapolation analysis suggested that renal glucuronidation contributed approximately 31.4% of the combined clearance. In addition to HSK3486 glucuronidation (M4), 4-hydroxylation (M7-1) was identified as another crucial oxidative metabolic pathway (fCL: 34.5%). Further attention should be paid to the impact of CYP2B6- and UGT1A9-mediated drug interactions and gene polymorphisms on the exposure and efficacy of HSK3486. SIGNIFICANCE STATEMENT: This research elucidates the major oxidative metabolic pathways of HSK3486 (the formation of three monohydroxylated metabolites: M7-1, M7-2, M7-3) as well as definitive structures and formation pathways of these monohydroxylated metabolites and their glucuronides or sulfate in humans. This research also identifies major metabolizing enzymes responsible for the glucuronidation (UGT1A9) and oxidation (CYP2B6) of HSK3486 and characterizes the mechanism of extrahepatic metabolism. The above information is helpful in guiding the safe use of HSK3486 in the clinic.
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Affiliation(s)
- Yufan Zhou
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China (Y.Z., L.L., Y.W., X.C.); University of Chinese Academy of Sciences, Beijing, China (Y.Z., X.C.); Haisco Pharmaceutical Group Co., Ltd., Chengdu, Sichuan Province, China (H.D., J.F., M.Z., P.T.); and MassDefect Technologies, Princeton, New Jersey (M.Z.)
| | - Hongjiao Dong
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China (Y.Z., L.L., Y.W., X.C.); University of Chinese Academy of Sciences, Beijing, China (Y.Z., X.C.); Haisco Pharmaceutical Group Co., Ltd., Chengdu, Sichuan Province, China (H.D., J.F., M.Z., P.T.); and MassDefect Technologies, Princeton, New Jersey (M.Z.)
| | - Jiang Fan
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China (Y.Z., L.L., Y.W., X.C.); University of Chinese Academy of Sciences, Beijing, China (Y.Z., X.C.); Haisco Pharmaceutical Group Co., Ltd., Chengdu, Sichuan Province, China (H.D., J.F., M.Z., P.T.); and MassDefect Technologies, Princeton, New Jersey (M.Z.)
| | - Mingshe Zhu
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China (Y.Z., L.L., Y.W., X.C.); University of Chinese Academy of Sciences, Beijing, China (Y.Z., X.C.); Haisco Pharmaceutical Group Co., Ltd., Chengdu, Sichuan Province, China (H.D., J.F., M.Z., P.T.); and MassDefect Technologies, Princeton, New Jersey (M.Z.)
| | - Lu Liu
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China (Y.Z., L.L., Y.W., X.C.); University of Chinese Academy of Sciences, Beijing, China (Y.Z., X.C.); Haisco Pharmaceutical Group Co., Ltd., Chengdu, Sichuan Province, China (H.D., J.F., M.Z., P.T.); and MassDefect Technologies, Princeton, New Jersey (M.Z.)
| | - Yongbin Wang
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China (Y.Z., L.L., Y.W., X.C.); University of Chinese Academy of Sciences, Beijing, China (Y.Z., X.C.); Haisco Pharmaceutical Group Co., Ltd., Chengdu, Sichuan Province, China (H.D., J.F., M.Z., P.T.); and MassDefect Technologies, Princeton, New Jersey (M.Z.)
| | - Pingming Tang
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China (Y.Z., L.L., Y.W., X.C.); University of Chinese Academy of Sciences, Beijing, China (Y.Z., X.C.); Haisco Pharmaceutical Group Co., Ltd., Chengdu, Sichuan Province, China (H.D., J.F., M.Z., P.T.); and MassDefect Technologies, Princeton, New Jersey (M.Z.)
| | - Xiaoyan Chen
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China (Y.Z., L.L., Y.W., X.C.); University of Chinese Academy of Sciences, Beijing, China (Y.Z., X.C.); Haisco Pharmaceutical Group Co., Ltd., Chengdu, Sichuan Province, China (H.D., J.F., M.Z., P.T.); and MassDefect Technologies, Princeton, New Jersey (M.Z.)
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Goelen J, Farrell G, McGeehan J, Titman CM, J W Rattray N, Johnson TN, Horniblow RD, Batchelor HK. Quantification of drug metabolising enzymes and transporter proteins in the paediatric duodenum via LC-MS/MS proteomics using a QconCAT technique. Eur J Pharm Biopharm 2023; 191:68-77. [PMID: 37625656 DOI: 10.1016/j.ejpb.2023.08.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 08/13/2023] [Accepted: 08/18/2023] [Indexed: 08/27/2023]
Abstract
Characterising the small intestine absorptive membrane is essential to enable prediction of the systemic exposure of oral formulations. In particular, the ontogeny of key intestinal Drug Metabolising Enzymes and Transporter (DMET) proteins involved in drug disposition needs to be elucidated to allow for accurate prediction of the PK profile of drugs in the paediatric cohort. Using pinch biopsies from the paediatric duodenum (n = 36; aged 11 months to 15 years), the abundance of 21 DMET proteins and two enterocyte markers were quantified via LC-MS/MS. An established LCMS nanoflow method was translated to enable analysis on a microflow LC system, and a new stable-isotope-labelled QconCAT standard developed to enable quantification of these proteins. Villin-1 was used to standardise abundancy values. The observed abundancies and ontogeny profiles, agreed with adult LC-MS/MS-based data, and historic paediatric data obtained via western blotting. A linear trend with age was observed for duodenal CYP3A4 and CES2 only. As this work quantified peptides on a pinch biopsy coupled with a microflow method, future studies using a wider population range are very feasible. Furthermore, this DMET ontogeny data can be used to inform paediatric PBPK modelling and to enhance the understanding of oral drug absorption and gut bioavailability in paediatric populations.
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Affiliation(s)
- Jan Goelen
- School of Pharmacy, University of Birmingham, Birmingham B15 2TT, UK; Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow G4 0RE, UK
| | - Gillian Farrell
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow G4 0RE, UK
| | | | | | - Nicholas J W Rattray
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow G4 0RE, UK
| | | | - Richard D Horniblow
- School of Biomedical Science, University of Birmingham, Birmingham B15 2TT, UK
| | - Hannah K Batchelor
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow G4 0RE, UK.
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Ahire D, Patel M, Deshmukh SV, Prasad B. Quantification of Accurate Composition and Total Abundance of Homologous Proteins by Conserved-Plus-Surrogate Peptide Approach: Quantification of UDP Glucuronosyltransferases in Human Tissues. Drug Metab Dispos 2023; 51:285-292. [PMID: 36446609 DOI: 10.1124/dmd.122.001155] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 11/01/2022] [Accepted: 11/08/2022] [Indexed: 12/02/2022] Open
Abstract
Characterization of accurate compositions and total abundance of homologous drug-metabolizing enzymes, such as UDP glucuronosyltransferases (UGTs), is important for predicting the fractional contribution of individual isoforms involved in the metabolism of a drug for applications in physiologically based pharmacokinetic (PBPK) modeling. Conventional targeted proteomics utilizes surrogate peptides, which often results in high technical and interlaboratory variability due to peptide-specific digestion leading to data inconsistencies. To address this problem, we developed a novel conserved-plus-surrogate peptide (CPSP) approach for determining the accurate compositions and total or cumulative abundance of homologous UGTs in commercially available pooled human liver microsomes (HLM), human intestinal microsomes (HIM), human kidney microsomes (HKM), and human liver S9 (HLS9) fraction. The relative percent composition of UGT1A and UGT2B isoforms in the human liver was 35:5:36:11:13 for UGT1A1:1A3:1A4:1A6:1A9 and 20:32:22:21:5 for UGT2B4:2B7:2B10:2B15:2B17. The human kidney and intestine also showed unique compositions of UGT1As and UGT2Bs. The reproducibility of the approach was validated by assessing correlations of UGT compositions between HLM and HLS9 (R2> 0.91). The analysis of the conserved peptides also provided the abundance for individual UGT isoforms included in this investigation as well as the total abundance (pmol/mg protein) of UGT1As and UGT2Bs across tissues, i.e., 268 and 342 (HLM), 21 and 92 (HIM), and 138 and 99 (HKM), respectively. The CPSP approach could be used for applications in the in-vitro-to-in-vivo extrapolation of drug metabolism and PBPK modeling. SIGNIFICANCE STATEMENT: We quantified the absolute compositions and total abundance of UDP glucuronosyltransferases (UGTs) in pooled human liver, intestine, and kidney microsomes using a novel conserved-plus-surrogate peptide (CPSP) approach. The CPSP approach addresses the surrogate peptide-specific variability in the determination of the absolute composition of UGTs. The data presented in this manuscript are applicable for the estimation of the fraction metabolized by individual UGTs towards better in vitro-to-in vivo extrapolation of UGT-mediated drug metabolism.
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Affiliation(s)
- Deepak Ahire
- Department of Pharmaceutical Sciences, Washington State University (WSU), Spokane, Washington (D.A., B.P.) and Novartis Institutes for BioMedical Research, Cambridge, Massachusetts (M.P., S.V.D.)
| | - Mitesh Patel
- Department of Pharmaceutical Sciences, Washington State University (WSU), Spokane, Washington (D.A., B.P.) and Novartis Institutes for BioMedical Research, Cambridge, Massachusetts (M.P., S.V.D.)
| | - Sujal V Deshmukh
- Department of Pharmaceutical Sciences, Washington State University (WSU), Spokane, Washington (D.A., B.P.) and Novartis Institutes for BioMedical Research, Cambridge, Massachusetts (M.P., S.V.D.)
| | - Bhagwat Prasad
- Department of Pharmaceutical Sciences, Washington State University (WSU), Spokane, Washington (D.A., B.P.) and Novartis Institutes for BioMedical Research, Cambridge, Massachusetts (M.P., S.V.D.)
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Hanioka N, Tanaka-Kagawa T, Mori Y, Ikushiro S, Jinno H, Ohkawara S, Isobe T. Regioselective Glucuronidation of Flavones at C5, C7, and C4′ Positions in Human Liver and Intestinal Microsomes: Comparison among Apigenin, Acacetin, and Genkwanin. Biol Pharm Bull 2022; 45:1116-1123. [DOI: 10.1248/bpb.b22-00160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
| | | | - Yoko Mori
- Faculty of Pharmacy, Meijo University
| | | | | | - Susumu Ohkawara
- Department of Health Pharmacy, Yokohama University of Pharmacy
| | - Takashi Isobe
- Department of Health Pharmacy, Yokohama University of Pharmacy
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Kojima A, Nadai M, Katoh M. Species and Tissue Differences in Regorafenib Glucuronidation. Xenobiotica 2022; 52:129-133. [DOI: 10.1080/00498254.2022.2055507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Ayaka Kojima
- Department of Pharmaceutics, Faculty of Pharmacy, Meijo University, Nagoya, Japan
| | - Masayuki Nadai
- Department of Pharmaceutics, Faculty of Pharmacy, Meijo University, Nagoya, Japan
| | - Miki Katoh
- Department of Pharmaceutics, Faculty of Pharmacy, Meijo University, Nagoya, Japan
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Maeda N, Fujiki J, Hasegawa Y, Ieko T, Miyasho T, Iwasaki T, Yokota H. Testicular induced corticosterone synthesis in male rats under fasting stress. Steroids 2022; 177:108947. [PMID: 34843801 DOI: 10.1016/j.steroids.2021.108947] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 11/12/2021] [Accepted: 11/16/2021] [Indexed: 11/28/2022]
Abstract
Testicular steroidogenesis is depressed by adrenal-secreted corticosterone (CORT) under stress. However, the mechanisms are not well understood. This study investigated the details of testicular steroidogenesis depression during fasting. Blood levels of adrenocorticotropic hormone secreted from the pituitary glands increased, but blood CORT was not changed in rats that fasted for 96 h, in spite of the rats being severely stressed. CORT in fasting adult male rats increased more than three times in the testis, but reduced testicular testosterone (T) and blood T levels to 5% and 2% of the control, respectively, was observed. The contents of T precursor (except PGN) were drastically reduced in the fasted-rat testes. Testicular CORT levels were elevated, but the enzymatic activity of cytochrome P45011β, which produces CORT, remained unchanged. The enzymatic activities of 3β-hydroxysteroid dehydrogenase (3β-HSD), mediating the conversion of pregnenolone to progesterone, decreased in the fasted-rat testes. Thus, fasting suppressed testicular steroidogenesis by affecting the enzyme activity of 3β-HSD in the testes and drastically reduced T and increased CORT synthesis. It can be considered that T synthesis involved in cell proliferation is suppressed due to lack of energy during fasting. Conversely, 11β-hydroxylase enzyme activity was induced and CORT synthesis is increased to cope with the fasting stress. Hence, it can be concluded that CORT synthesis in the testes plays a role in the local defense response.
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Affiliation(s)
- Naoyuki Maeda
- Laboratory of Meat Science and Technology, Department of Food Science and Human Wellness, Rakuno Gakuen University, Hokkaido 069-8501, Japan
| | - Jumpei Fujiki
- Laboratory of Veterinary Biochemistry, Department of Veterinary Medicine, Rakuno Gakuen University, Hokkaido 069-8501, Japan
| | - Yasuhiro Hasegawa
- Laboratory of Applied Biochemistry, Department of Food Science and Human Wellness, Rakuno Gakuen University, Hokkaido 069-8501, Japan
| | - Takahiro Ieko
- Laboratory of Veterinary Biochemistry, Department of Veterinary Medicine, Rakuno Gakuen University, Hokkaido 069-8501, Japan
| | - Taku Miyasho
- Laboratory of Animal Biological Responses, Department of Veterinary Science, Rakuno Gakuen University, Hokkaido 069-8501, Japan
| | - Tomohito Iwasaki
- Laboratory of Applied Biochemistry, Department of Food Science and Human Wellness, Rakuno Gakuen University, Hokkaido 069-8501, Japan
| | - Hiroshi Yokota
- Laboratory of Veterinary Biochemistry, Department of Veterinary Medicine, Rakuno Gakuen University, Hokkaido 069-8501, Japan.
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Data-independent acquisition (DIA): An emerging proteomics technology for analysis of drug-metabolizing enzymes and transporters. DRUG DISCOVERY TODAY. TECHNOLOGIES 2021; 39:49-56. [PMID: 34906325 DOI: 10.1016/j.ddtec.2021.06.006] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 04/22/2021] [Accepted: 06/21/2021] [Indexed: 01/22/2023]
Abstract
Data-independent acquisition (DIA) proteomics is a recently-developed global mass spectrometry (MS)-based proteomics strategy. In a DIA method, precursor ions are isolated into pre-defined isolation windows and fragmented; all fragmented ions in each window are then analyzed by a high-resolution mass spectrometer. DIA proteomics analysis is characterized by a broad protein coverage, high reproducibility, and accuracy, and its combination with advances in other techniques such as sample preparation and computational data analysis could lead to further improvements in assay performances. DIA technology has been increasingly utilized in various proteomics studies, including quantifying drug-metabolizing enzymes and transporters. Quantitative proteomics study of drug-metabolizing enzymes and transporters could lead to a better understanding of pharmacokinetics and pharmacodynamics and facilitate drug development. This review summarizes the application of DIA technology in proteomic analysis of drug-metabolizing enzymes and transporters.
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Mullapudi TVR, Ravi PR, Thipparapu G. UGT1A1 and UGT1A3 activity and inhibition in human liver and intestinal microsomes and a recombinant UGT system under similar assay conditions using selective substrates and inhibitors. Xenobiotica 2021; 51:1236-1246. [PMID: 34698602 DOI: 10.1080/00498254.2021.1998732] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
In vitro enzyme kinetics and inhibition data was compared for UGT1A1 and UGT1A3 isoforms under similar assay conditions using human liver microsomes (HLM), human intestinal microsomes (HIM) and recombinant UGT (rUGT) enzyme systems.UGT1A1 catalysed β-estradiol 3-β-D-glucuronide formation showed allosteric sigmoidal kinetics in all enzyme systems; while UGT1A3 catalysed CDCA 24-acyl-β-D-glucuronide formation exhibited Michaelis-Menten kinetics in HLM, substrate inhibition kinetics in HIM and rUGT systems. Corresponding Km or S50 concentrations of β-estradiol and CDCA were employed in the respective UGT inhibition studies.Atazanavir inhibited the production of β-estradiol 3-β-D-glucuronide with IC50 values of 0.54 µM and 0.16 µM in HLM and rUGT1A1, respectively. But its inhibition potential was not observed in HIM, indicating potential cross-talk with other high-affinity intestinal UGT isozymes. On the other hand, zafirlukast, a pan UGT inhibitor, exhibited moderate inhibition in HIM with an IC50 value of 16.70 µM. Lithocholic acid, inhibited the production of CDCA 24-acyl-β-D-glucuronide with IC50 values of 1.68, 1.84, and 12.42 µM in HLM, rUGT1A3, and HIM, respectively.These results indicated that HLM, HIM, and rUGTs may be used as complementary in vitro systems to evaluate hepatic and intestinal UGT mediated DDIs at the screening stage.
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Affiliation(s)
- T V Radhakrishna Mullapudi
- Department of Pharmacy, Birla Institute of Technology and Science-Pilani, Hyderabad Campus, Hyderabad, India.,Drug Metabolism and Pharmacokinetics, PharmaJen Laboratories Private Limited, A209 Technology Business Incubator, Birla Institute of Technology and Science-Pilani, Hyderabad Campus, Hyderabad, India
| | - Punna Rao Ravi
- Department of Pharmacy, Birla Institute of Technology and Science-Pilani, Hyderabad Campus, Hyderabad, India
| | - Ganapathi Thipparapu
- Drug Metabolism and Pharmacokinetics, PharmaJen Laboratories Private Limited, A209 Technology Business Incubator, Birla Institute of Technology and Science-Pilani, Hyderabad Campus, Hyderabad, India
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12
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Reddy MB, Bolger MB, Fraczkiewicz G, Del Frari L, Luo L, Lukacova V, Mitra A, Macwan JS, Mullin JM, Parrott N, Heikkinen AT. PBPK Modeling as a Tool for Predicting and Understanding Intestinal Metabolism of Uridine 5'-Diphospho-glucuronosyltransferase Substrates. Pharmaceutics 2021; 13:pharmaceutics13091325. [PMID: 34575401 PMCID: PMC8468656 DOI: 10.3390/pharmaceutics13091325] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 08/17/2021] [Accepted: 08/18/2021] [Indexed: 12/15/2022] Open
Abstract
Uridine 5′-diphospho-glucuronosyltransferases (UGTs) are expressed in the small intestines, but prediction of first-pass extraction from the related metabolism is not well studied. This work assesses physiologically based pharmacokinetic (PBPK) modeling as a tool for predicting intestinal metabolism due to UGTs in the human gastrointestinal tract. Available data for intestinal UGT expression levels and in vitro approaches that can be used to predict intestinal metabolism of UGT substrates are reviewed. Human PBPK models for UGT substrates with varying extents of UGT-mediated intestinal metabolism (lorazepam, oxazepam, naloxone, zidovudine, cabotegravir, raltegravir, and dolutegravir) have demonstrated utility for predicting the extent of intestinal metabolism. Drug–drug interactions (DDIs) of UGT1A1 substrates dolutegravir and raltegravir with UGT1A1 inhibitor atazanavir have been simulated, and the role of intestinal metabolism in these clinical DDIs examined. Utility of an in silico tool for predicting substrate specificity for UGTs is discussed. Improved in vitro tools to study metabolism for UGT compounds, such as coculture models for low clearance compounds and better understanding of optimal conditions for in vitro studies, may provide an opportunity for improved in vitro–in vivo extrapolation (IVIVE) and prospective predictions. PBPK modeling shows promise as a useful tool for predicting intestinal metabolism for UGT substrates.
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Affiliation(s)
- Micaela B. Reddy
- Early Clinical Development, Department of Clinical Pharmacology Oncology, Pfizer, Boulder, CO 80301, USA
- Correspondence: ; Tel.: +1-303-842-4123
| | - Michael B. Bolger
- Simulations Plus Inc., Lancaster, CA 93534, USA; (M.B.B.); (G.F.); (V.L.); (J.S.M.); (J.M.M.)
| | - Grace Fraczkiewicz
- Simulations Plus Inc., Lancaster, CA 93534, USA; (M.B.B.); (G.F.); (V.L.); (J.S.M.); (J.M.M.)
| | | | - Laibin Luo
- Material & Analytical Sciences, Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, CT 06877, USA;
| | - Viera Lukacova
- Simulations Plus Inc., Lancaster, CA 93534, USA; (M.B.B.); (G.F.); (V.L.); (J.S.M.); (J.M.M.)
| | - Amitava Mitra
- Clinical Pharmacology and Pharmacometrics, Janssen Research & Development, Springhouse, PA 19477, USA;
| | - Joyce S. Macwan
- Simulations Plus Inc., Lancaster, CA 93534, USA; (M.B.B.); (G.F.); (V.L.); (J.S.M.); (J.M.M.)
| | - Jim M. Mullin
- Simulations Plus Inc., Lancaster, CA 93534, USA; (M.B.B.); (G.F.); (V.L.); (J.S.M.); (J.M.M.)
| | - Neil Parrott
- Pharmaceutical Sciences, Roche Pharmaceutical Research and Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche, 4070 Basel, Switzerland;
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Wenzel C, Drozdzik M, Oswald S. Mass spectrometry-based targeted proteomics method for the quantification of clinically relevant drug metabolizing enzymes in human specimens. J Chromatogr B Analyt Technol Biomed Life Sci 2021; 1180:122891. [PMID: 34390906 DOI: 10.1016/j.jchromb.2021.122891] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 07/06/2021] [Accepted: 07/30/2021] [Indexed: 01/15/2023]
Abstract
Biotransformation by phase I and II metabolizing enzymes represents the major determinant for the oral bioavailability of many drugs. To estimate the pharmacokinetics, data on protein abundance of hepatic and extrahepatic tissues, such as the small intestine, are required. Targeted proteomics assays are nowadays state-of-the-art for absolute protein quantification and several methods for quantification of drug metabolizing enzymes have been published. However, some enzymes remain still uncovered by the analytical spectra of those methods. Therefore, we developed and validated a quantification assay for two carboxylesterases (CES-1, CES-2), 17 cytochrome P450 enzymes (CYP) (CYP1A1, CYP1A2, CYP2A6, CYP2B6, CYP2C8, CYP2C9, CYP2C18, CYP2C19, CYP2D6, CYP2E1, CYP2J2, CYP3A4, CYP3A5, CYP3A7, CYP4F2, CYP4F12, CYP4A11) and five UDP-glucuronosyltransferases (UGTs) (UGT1A1, UGT1A3, UGT2B7, UGT2B15, UGT2B17). Protein quantification was performed by analyzing proteospecific surrogate peptides after tryptic digestion with stable isotope-labelled standards. Chromatographic separation was performed on a Kinetex® 2.6 µm C18 100 Å core-shell column (100 × 2.1 mm) with a gradient elution using 0.1% formic acid and acetonitrile containing 0.1% formic acid with a flow rate of 200 µl/min. Three mass transitions were simultaneously monitored with a scheduled multiple reaction monitoring (sMRM) method for each analyte and standard. The method was partly validated according to current bioanalytical guidelines and met the criteria regarding linearity (0.1-25 nmol/L), within-day and between-day accuracy and precision as well as multiple stability criteria. Finally, the developed method was successfully applied to determine the abundance of the aforementioned enzymes in human intestinal und liver microsomes. Our work offers a new fit for purpose method for the absolute quantification of CES, CYPs and UGTs in various human tissues and can be used for the acquisition of data for physiologically based pharmacokinetic modelling.
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Affiliation(s)
- Christoph Wenzel
- Department of Pharmacology, Center of Drug Absorption and Transport, University Medicine Greifswald, Greifswald, Germany
| | - Marek Drozdzik
- Department of Experimental and Clinical Pharmacology, Pomeranian Medical University, Szczecin, Poland
| | - Stefan Oswald
- Institute of Pharmacology and Toxicology, Rostock University Medical Center, Rostock, Germany.
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14
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Takahashi RH, Forrest WF, Smith AD, Badee J, Qiu N, Schmidt S, Collier AC, Parrott N, Fowler S. Characterization of Hepatic UDP-Glucuronosyltransferase Enzyme Abundance-Activity Correlations and Population Variability Using a Proteomics Approach and Comparison with Cytochrome P450 Enzymes. Drug Metab Dispos 2021; 49:760-769. [PMID: 34187837 DOI: 10.1124/dmd.121.000474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Accepted: 06/24/2021] [Indexed: 11/22/2022] Open
Abstract
The expression of ten major drug-metabolizing UDP-glucuronosyltransferase (UGT) enzymes in a panel of 130 human hepatic microsomal samples was measured using a liquid chromatography-tandem mass spectrometry-based approach. Simultaneously, ten cytochromes P450 and P450 reductase were also measured, and activity-expression relationships were assessed for comparison. The resulting data sets demonstrated that, with the exception of UGT2B17, 10th to 90th percentiles of UGT expression spanned 3- to 8-fold ranges. These ranges were small relative to ranges of reported mean UGT enzyme expression across different laboratories. We tested correlation of UGT expression with enzymatic activities using selective probe substrates. A high degree of abundance-activity correlation (Spearman's rank correlation coefficient > 0.6) was observed for UGT1As (1A1, 3, 4, 6) and cytochromes P450. In contrast, protein abundance and activity did not correlate strongly for UGT1A9 and UGT2B enzymes (2B4, 7, 10, 15, and 17). Protein abundance was strongly correlated for UGTs 2B7, 2B10, and 2B15. We suggest a number of factors may contribute to these differences including incomplete selectivity of probe substrates, correlated expression of these UGT2B isoforms, and the impact of splice and polymorphic variants on the peptides used in proteomics analysis, and exemplify this in the case of UGT2B10. Extensive correlation analyses identified important criteria for validating the fidelity of proteomics and enzymatic activity approaches for assessing UGT variability, population differences, and ontogenetic changes. SIGNIFICANCE STATEMENT: Protein expression data allow detailed assessment of interindividual variability and enzyme ontogeny. This study has observed that expression and enzyme activity are well correlated for hepatic UGT1A enzymes and cytochromes P450. However, for the UGT2B family, caution is advised when assuming correlation of expression and activity as is often done in physiologically based pharmacokinetic modeling. This can be due to incomplete probe substrate specificities, but may also be related to presence of inactive UGT protein materials and the effect of splicing variations.
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Affiliation(s)
- Ryan H Takahashi
- Department of Drug Metabolism and Pharmacokinetics (R.H.T.) and Department of OMNI Bioinformatics (W.F.F.), Genentech, Inc., South San Francisco, California; Department of Pharmaceutics, Center for Pharmacometrics and Systems Pharmacology, University of Florida at Lake Nona, Orlando, Florida (J.B., S.S.); Pharmaceutical Research and Early Development, Roche Innovation Centre Basel, F. Hoffmann-La Roche Ltd., Basel, Switzerland (N.Q., N.P., S.F.); Faculty of Pharmaceutical Sciences, The University of British Columbia, Vancouver, British Columbia, Canada (A.D.S., A.C.C.)
| | - William F Forrest
- Department of Drug Metabolism and Pharmacokinetics (R.H.T.) and Department of OMNI Bioinformatics (W.F.F.), Genentech, Inc., South San Francisco, California; Department of Pharmaceutics, Center for Pharmacometrics and Systems Pharmacology, University of Florida at Lake Nona, Orlando, Florida (J.B., S.S.); Pharmaceutical Research and Early Development, Roche Innovation Centre Basel, F. Hoffmann-La Roche Ltd., Basel, Switzerland (N.Q., N.P., S.F.); Faculty of Pharmaceutical Sciences, The University of British Columbia, Vancouver, British Columbia, Canada (A.D.S., A.C.C.)
| | - Alexander D Smith
- Department of Drug Metabolism and Pharmacokinetics (R.H.T.) and Department of OMNI Bioinformatics (W.F.F.), Genentech, Inc., South San Francisco, California; Department of Pharmaceutics, Center for Pharmacometrics and Systems Pharmacology, University of Florida at Lake Nona, Orlando, Florida (J.B., S.S.); Pharmaceutical Research and Early Development, Roche Innovation Centre Basel, F. Hoffmann-La Roche Ltd., Basel, Switzerland (N.Q., N.P., S.F.); Faculty of Pharmaceutical Sciences, The University of British Columbia, Vancouver, British Columbia, Canada (A.D.S., A.C.C.)
| | - Justine Badee
- Department of Drug Metabolism and Pharmacokinetics (R.H.T.) and Department of OMNI Bioinformatics (W.F.F.), Genentech, Inc., South San Francisco, California; Department of Pharmaceutics, Center for Pharmacometrics and Systems Pharmacology, University of Florida at Lake Nona, Orlando, Florida (J.B., S.S.); Pharmaceutical Research and Early Development, Roche Innovation Centre Basel, F. Hoffmann-La Roche Ltd., Basel, Switzerland (N.Q., N.P., S.F.); Faculty of Pharmaceutical Sciences, The University of British Columbia, Vancouver, British Columbia, Canada (A.D.S., A.C.C.)
| | - NaHong Qiu
- Department of Drug Metabolism and Pharmacokinetics (R.H.T.) and Department of OMNI Bioinformatics (W.F.F.), Genentech, Inc., South San Francisco, California; Department of Pharmaceutics, Center for Pharmacometrics and Systems Pharmacology, University of Florida at Lake Nona, Orlando, Florida (J.B., S.S.); Pharmaceutical Research and Early Development, Roche Innovation Centre Basel, F. Hoffmann-La Roche Ltd., Basel, Switzerland (N.Q., N.P., S.F.); Faculty of Pharmaceutical Sciences, The University of British Columbia, Vancouver, British Columbia, Canada (A.D.S., A.C.C.)
| | - Stephan Schmidt
- Department of Drug Metabolism and Pharmacokinetics (R.H.T.) and Department of OMNI Bioinformatics (W.F.F.), Genentech, Inc., South San Francisco, California; Department of Pharmaceutics, Center for Pharmacometrics and Systems Pharmacology, University of Florida at Lake Nona, Orlando, Florida (J.B., S.S.); Pharmaceutical Research and Early Development, Roche Innovation Centre Basel, F. Hoffmann-La Roche Ltd., Basel, Switzerland (N.Q., N.P., S.F.); Faculty of Pharmaceutical Sciences, The University of British Columbia, Vancouver, British Columbia, Canada (A.D.S., A.C.C.)
| | - Abby C Collier
- Department of Drug Metabolism and Pharmacokinetics (R.H.T.) and Department of OMNI Bioinformatics (W.F.F.), Genentech, Inc., South San Francisco, California; Department of Pharmaceutics, Center for Pharmacometrics and Systems Pharmacology, University of Florida at Lake Nona, Orlando, Florida (J.B., S.S.); Pharmaceutical Research and Early Development, Roche Innovation Centre Basel, F. Hoffmann-La Roche Ltd., Basel, Switzerland (N.Q., N.P., S.F.); Faculty of Pharmaceutical Sciences, The University of British Columbia, Vancouver, British Columbia, Canada (A.D.S., A.C.C.)
| | - Neil Parrott
- Department of Drug Metabolism and Pharmacokinetics (R.H.T.) and Department of OMNI Bioinformatics (W.F.F.), Genentech, Inc., South San Francisco, California; Department of Pharmaceutics, Center for Pharmacometrics and Systems Pharmacology, University of Florida at Lake Nona, Orlando, Florida (J.B., S.S.); Pharmaceutical Research and Early Development, Roche Innovation Centre Basel, F. Hoffmann-La Roche Ltd., Basel, Switzerland (N.Q., N.P., S.F.); Faculty of Pharmaceutical Sciences, The University of British Columbia, Vancouver, British Columbia, Canada (A.D.S., A.C.C.)
| | - Stephen Fowler
- Department of Drug Metabolism and Pharmacokinetics (R.H.T.) and Department of OMNI Bioinformatics (W.F.F.), Genentech, Inc., South San Francisco, California; Department of Pharmaceutics, Center for Pharmacometrics and Systems Pharmacology, University of Florida at Lake Nona, Orlando, Florida (J.B., S.S.); Pharmaceutical Research and Early Development, Roche Innovation Centre Basel, F. Hoffmann-La Roche Ltd., Basel, Switzerland (N.Q., N.P., S.F.); Faculty of Pharmaceutical Sciences, The University of British Columbia, Vancouver, British Columbia, Canada (A.D.S., A.C.C.)
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15
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Wang-Lakshman L, Miao Z, Wang L, Gu H, Kagan M, Gu J, McNamara E, Walles M, Woessner R, Camenisch G, Einolf HJ, Chen J. Evaluation of the Absorption, Metabolism, and Excretion of a Single Oral 1-mg Dose of Tropifexor in Healthy Male Subjects and the Concentration Dependence of Tropifexor Metabolism. Drug Metab Dispos 2021; 49:548-562. [PMID: 33952610 DOI: 10.1124/dmd.120.000349] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Accepted: 04/06/2021] [Indexed: 12/14/2022] Open
Abstract
Tropifexor (NVP-LJN452) is a highly potent, selective, nonsteroidal, non-bile acid farnesoid X receptor agonist for the treatment of nonalcoholic steatohepatitis. Its absorption, metabolism, and excretion were studied after a 1-mg oral dose of [14C]tropifexor was given to four healthy male subjects. Mass balance was achieved with ∼94% of the administered dose recovered in excreta through a 312-hour collection period. Fecal excretion of tropifexor-related radioactivity played a major role (∼65% of the total dose). Tropifexor reached a maximum blood concentration (Cmax) of 33.5 ng/ml with a median time to reach Cmax of 4 hours and was eliminated with a plasma elimination half-life of 13.5 hours. Unchanged tropifexor was the principal drug-related component found in plasma (∼92% of total radioactivity). Two minor oxidative metabolites, M11.6 and M22.4, were observed in circulation. Tropifexor was eliminated predominantly via metabolism with >68% of the dose recovered as metabolites in excreta. Oxidative metabolism appeared to be the major clearance pathway of tropifexor. Metabolites containing multiple oxidative modifications and combined oxidation and glucuronidation were also observed in human excreta. The involvement of direct glucuronidation could not be ruled out based on previous in vitro and nonclinical in vivo studies indicating its contribution to tropifexor clearance. The relative contribution of the oxidation and glucuronidation pathways appeared to be dose-dependent upon further in vitro investigation. Because of these complexities and the instability of glucuronide metabolites in the gastrointestinal tract, the contribution of glucuronidation remained undefined in this study. SIGNIFICANCE STATEMENT: Tropifexor was found to be primarily cleared from the human body via oxidative metabolism. In vitro metabolism experiments revealed that the relative contribution of oxidation and glucuronidation was concentration-dependent, with glucuronidation as the predominant pathway at higher concentrations and the oxidative process becoming more important at lower concentrations near clinical exposure range. The body of work demonstrated the importance of carefully designed in vivo and in vitro experiments for better understanding of disposition processes during drug development.
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Affiliation(s)
- Lydia Wang-Lakshman
- Novartis Institute for BioMedical Research, East Hanover, New Jersey (L.W.-L., Z.M., L.W., H.G., M.K., H.J.E., J.C.); Novartis Institute for BioMedical Research, Cambridge, Massachusetts (J.G., E.M.); and Novartis Institute for BioMedical Research, Basel, Switzerland (M.W., R.W., G.C.)
| | - Zhuang Miao
- Novartis Institute for BioMedical Research, East Hanover, New Jersey (L.W.-L., Z.M., L.W., H.G., M.K., H.J.E., J.C.); Novartis Institute for BioMedical Research, Cambridge, Massachusetts (J.G., E.M.); and Novartis Institute for BioMedical Research, Basel, Switzerland (M.W., R.W., G.C.)
| | - Lai Wang
- Novartis Institute for BioMedical Research, East Hanover, New Jersey (L.W.-L., Z.M., L.W., H.G., M.K., H.J.E., J.C.); Novartis Institute for BioMedical Research, Cambridge, Massachusetts (J.G., E.M.); and Novartis Institute for BioMedical Research, Basel, Switzerland (M.W., R.W., G.C.)
| | - Helen Gu
- Novartis Institute for BioMedical Research, East Hanover, New Jersey (L.W.-L., Z.M., L.W., H.G., M.K., H.J.E., J.C.); Novartis Institute for BioMedical Research, Cambridge, Massachusetts (J.G., E.M.); and Novartis Institute for BioMedical Research, Basel, Switzerland (M.W., R.W., G.C.)
| | - Mark Kagan
- Novartis Institute for BioMedical Research, East Hanover, New Jersey (L.W.-L., Z.M., L.W., H.G., M.K., H.J.E., J.C.); Novartis Institute for BioMedical Research, Cambridge, Massachusetts (J.G., E.M.); and Novartis Institute for BioMedical Research, Basel, Switzerland (M.W., R.W., G.C.)
| | - Jessie Gu
- Novartis Institute for BioMedical Research, East Hanover, New Jersey (L.W.-L., Z.M., L.W., H.G., M.K., H.J.E., J.C.); Novartis Institute for BioMedical Research, Cambridge, Massachusetts (J.G., E.M.); and Novartis Institute for BioMedical Research, Basel, Switzerland (M.W., R.W., G.C.)
| | - Elizabeth McNamara
- Novartis Institute for BioMedical Research, East Hanover, New Jersey (L.W.-L., Z.M., L.W., H.G., M.K., H.J.E., J.C.); Novartis Institute for BioMedical Research, Cambridge, Massachusetts (J.G., E.M.); and Novartis Institute for BioMedical Research, Basel, Switzerland (M.W., R.W., G.C.)
| | - Markus Walles
- Novartis Institute for BioMedical Research, East Hanover, New Jersey (L.W.-L., Z.M., L.W., H.G., M.K., H.J.E., J.C.); Novartis Institute for BioMedical Research, Cambridge, Massachusetts (J.G., E.M.); and Novartis Institute for BioMedical Research, Basel, Switzerland (M.W., R.W., G.C.)
| | - Ralph Woessner
- Novartis Institute for BioMedical Research, East Hanover, New Jersey (L.W.-L., Z.M., L.W., H.G., M.K., H.J.E., J.C.); Novartis Institute for BioMedical Research, Cambridge, Massachusetts (J.G., E.M.); and Novartis Institute for BioMedical Research, Basel, Switzerland (M.W., R.W., G.C.)
| | - Gian Camenisch
- Novartis Institute for BioMedical Research, East Hanover, New Jersey (L.W.-L., Z.M., L.W., H.G., M.K., H.J.E., J.C.); Novartis Institute for BioMedical Research, Cambridge, Massachusetts (J.G., E.M.); and Novartis Institute for BioMedical Research, Basel, Switzerland (M.W., R.W., G.C.)
| | - Heidi J Einolf
- Novartis Institute for BioMedical Research, East Hanover, New Jersey (L.W.-L., Z.M., L.W., H.G., M.K., H.J.E., J.C.); Novartis Institute for BioMedical Research, Cambridge, Massachusetts (J.G., E.M.); and Novartis Institute for BioMedical Research, Basel, Switzerland (M.W., R.W., G.C.)
| | - Jin Chen
- Novartis Institute for BioMedical Research, East Hanover, New Jersey (L.W.-L., Z.M., L.W., H.G., M.K., H.J.E., J.C.); Novartis Institute for BioMedical Research, Cambridge, Massachusetts (J.G., E.M.); and Novartis Institute for BioMedical Research, Basel, Switzerland (M.W., R.W., G.C.)
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Chavan A, Burke L, Sawant R, Navarro-Gonzales P, Vargo D, Paulson SK. Effect of Moderate Hepatic Impairment on the Pharmacokinetics of Vadadustat, an Oral Hypoxia-Inducible Factor Prolyl Hydroxylase Inhibitor. Clin Pharmacol Drug Dev 2021; 10:950-958. [PMID: 33661566 DOI: 10.1002/cpdd.927] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Accepted: 01/30/2021] [Indexed: 12/17/2022]
Abstract
Vadadustat is a hypoxia-inducible factor prolyl hydroxylase inhibitor in development for the treatment of anemia of chronic kidney disease. This phase 1, open-label, parallel-group, single-dose study evaluated the pharmacokinetics of 450-mg vadadustat in adults with moderate hepatic impairment (Child-Pugh class B) vs those with normal hepatic function. Primary end points were area under the plasma concentration-time curve (AUC) from dosing to last concentration and to infinity, as well as maximum concentration (Cmax ); additional pharmacokinetic parameters included time to Cmax (Tmax ) and half-life. Safety and tolerability were also assessed. All enrolled participants (n = 16) completed the study. Demographics were similar in both groups (overall, 100% White; 62.5% female; mean age, 59.2 years). Vadadustat plasma exposure was higher in the moderate hepatic impairment group, whereas maximum concentration was similar between groups. Point estimates of the hepatic impairment : normal geometric mean ratios (90% confidence interval) for AUC from dosing to last concentration, AUC from dosing to infinity, and Cmax were 1.05 (0.82-1.35), 1.06 (0.82-1.36), and 1.02 (0.79-1.32), respectively. Mean elimination half-life was 5.8 and 7.8 hours in the normal and hepatic impairment groups, respectively. Treatment-emergent adverse events were mostly mild in severity, and vadadustat was generally well tolerated. In conclusion, moderate hepatic impairment did not significantly impact vadadustat systemic exposure, and mild hepatic impairment is unlikely to alter vadadustat exposure.
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Affiliation(s)
- Ajit Chavan
- Akebia Therapeutics, Inc., Cambridge, Massachusetts, USA
| | - Leontia Burke
- Akebia Therapeutics, Inc., Cambridge, Massachusetts, USA
| | | | | | - Dennis Vargo
- Akebia Therapeutics, Inc., Cambridge, Massachusetts, USA
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Seneviratne HK, Tillotson J, Lade JM, Bekker LG, Li S, Pathak S, Justman J, Mgodi N, Swaminathan S, Sista N, Farrior J, Richardson P, Hendrix CW, Bumpus NN. Metabolism of Long-Acting Rilpivirine After Intramuscular Injection: HIV Prevention Trials Network Study 076 (HPTN 076). AIDS Res Hum Retroviruses 2021; 37:173-183. [PMID: 33191765 DOI: 10.1089/aid.2020.0155] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
A long-acting injectable formulation of rilpivirine (RPV), a non-nucleoside reverse transcriptase inhibitor, is currently under investigation for use in human immunodeficiency virus (HIV) maintenance therapy. We previously characterized RPV metabolism after oral dosing and identified seven metabolites: four metabolites resulting from mono- or dioxygenation of the 2,6-dimethylphenyl ring itself or either of the two methyl groups located on that ring, one N-linked RPV glucuronide conjugate, and two O-linked RPV glucuronides produced via glucuronidation of mono- and dihydroxymethyl metabolites. However, as is true for most drugs, the metabolism of RPV after injection has yet to be reported. The phase II clinical trial HPTN 076 enrolled 136 HIV-uninfected women and investigated the safety and acceptability of long-acting injectable RPV for use in HIV pre-exposure prophylaxis. Through the analysis of plasma samples from 80 of these participants in the active product arm of the study, we were able to detect 2 metabolites after intramuscular injection of long-acting RPV, 2-hydroxymethyl-RPV, and RPV N-glucuronide. Of the total of 80 individuals, 72 participants exhibited detectable levels of 2-hydroxymethyl-RPV in plasma samples whereas RPV N-glucuronide was detectable in plasma samples of 78 participants. In addition, RPV N-glucuronide was detectable in rectal fluid, cervicovaginal fluid, and vaginal tissue. To investigate potential genetic variation in genes encoding enzymes relevant to RPV metabolism, we isolated genomic DNA and performed next-generation sequencing of CYP3A4, CYP3A5, UGT1A1 and UGT1A4. From these analyses, four missense variants were detected for CYP3A4 whereas one missense variant and one frameshift variant were detected for CYP3A5. A total of eight missense variants of UGT1A4 were detected, whereas two variants were detected for UGT1A1; however, these variants did not appear to account for the observed interindividual variability in metabolite levels. These findings provide insight into the metabolism of long-acting RPV and contribute to an overall understanding of metabolism after oral dosing versus injection. ClinicalTrials.gov Identifier: NCT02165202.
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Affiliation(s)
- Herana Kamal Seneviratne
- Division of Clinical Pharmacology, Department of Medicine, the Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Joseph Tillotson
- Division of Clinical Pharmacology, Department of Medicine, the Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Julie M. Lade
- Department of Pharmacology and Molecular Sciences, the Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Linda-Gail Bekker
- The Desmond Tutu HIV Centre, University of Cape Town, Cape Town, South Africa
| | - Sue Li
- Statistical Center for HIV/AIDS Research & Prevention (SCHARP), Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
| | - Subash Pathak
- Statistical Center for HIV/AIDS Research & Prevention (SCHARP), Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
| | - Jessica Justman
- ICAP at Columbia, Mailman School of Public Health, and Division of Infectious Diseases, Vagelos College of Physicians and Surgeons, Columbia University, New York, New York, USA
| | - Nyaradzo Mgodi
- University of Zimbabwe–University of California, San Francisco (UZ-UCSF) Collaborative Research Programme, Harare, Zimbabwe
| | - Shobha Swaminathan
- Department of Medicine, Rutgers New Jersey Medical School, Newark, New Jersey, USA
| | | | | | - Paul Richardson
- Department of Pathology, the Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Craig W. Hendrix
- Division of Clinical Pharmacology, Department of Medicine, the Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Namandje N. Bumpus
- Division of Clinical Pharmacology, Department of Medicine, the Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Department of Pharmacology and Molecular Sciences, the Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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Seneviratne HK, Hamlin AN, Li S, Grinsztejn B, Dawood H, Liu AY, Kuo I, Hosseinipour MC, Panchia R, Cottle L, Chau G, Adeyeye A, Rinehart AR, McCauley M, Eron JS, Cohen MS, Landovitz RJ, Hendrix CW, Bumpus NN. Identification of Novel UGT1A1 Variants Including UGT1A1 454C>A through the Genotyping of Healthy Participants of the HPTN 077 Study. ACS Pharmacol Transl Sci 2021; 4:226-239. [PMID: 33615175 PMCID: PMC7888308 DOI: 10.1021/acsptsci.0c00181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Indexed: 11/30/2022]
Abstract
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Cabotegravir (CAB) is an integrase strand-transfer inhibitor of HIV that has proven
effective for HIV treatment and prevention in a long-acting injectable formulation,
typically preceded by an oral formulation lead-in phase. Previous in
vitro studies have demonstrated that CAB is primarily metabolized via
glucuronidation by uridine diphosphate glucuronosyltransferase (UGT) 1A1 and 1A9. In
this study, we performed next-generation sequencing of genomic DNA isolated from the
HPTN 077 participants to explore the variants within UGT1A1 and
UGT1A9. Additionally, to enable correlation of
UGT1A1 and UGT1A9 genotypes with plasma
CAB-glucuronide levels, we quantified glucuronidated CAB following both oral
administration of CAB and intramuscular injection of long-acting CAB. From these
studies, 48 previously unreported variants of UGT1A1 and
UGT1A9 were detected. Notably, 5/68 individuals carried a
UGT1A1 454C>A variant that resulted in amino acid substitution
P152T, and the use of in silico tools predicted a deleterious effect of
the P152T substitution. Thus, the impact of this mutant on a range of UGT1A1 substrates
was tested using a COS-7 cell-based assay. The glucuronide conjugates of CAB,
dolutegravir, and raltegravir, were not formed in the COS-7 cells expressing the UGT1A1
P152T mutant. Further, formation of glucuronides of raloxifene and
7-ethyl-10-hydroxycamptothecin were reduced in the cells expressing the UGT1A1 P152T
mutant. Using the same approach, we tested the activities of two UGT1A9 mutants, UGT1A9
H217Y and UGT1A9 R464G, and found that these mutations were tolerated and decreased
function, respectively. These data provide insight into previously unreported genetic
variants of UGT1A1 and UGT1A9.
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Affiliation(s)
- Herana Kamal Seneviratne
- Department of Medicine, Division of Clinical Pharmacology, The Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
| | - Allyson N Hamlin
- Department of Medicine, Division of Clinical Pharmacology, The Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
| | - Sue Li
- Statistical Center for HIV/AIDS Research and Prevention, Fred Hutchinson Cancer Research Center, Seattle, Washington 98109, United States
| | - Beatriz Grinsztejn
- Evandro Chagas National Institute of Infectious Diseases, Oswaldo Cruz Foundation, Rio de Janeiro 21040-900, Brazil
| | - Halima Dawood
- Centre for the AIDS Programme of Research in South Africa, University of KwaZulu Natal, Durban 4041, South Africa
| | - Albert Y Liu
- Bridge HIV, Population Health Division, San Francisco Department of Health, San Francisco, California 94102, United States
| | - Irene Kuo
- Department of Epidemiology and Biostatistics, Milken Institute School of Public Health, George Washington University, Washington, District of Columbia 20052, United States
| | | | - Ravindre Panchia
- Perinatal HIV Research Unit, Chris Hani Baragwanath Hospital, Soweto 1864, South Africa
| | - Leslie Cottle
- Statistical Center for HIV/AIDS Research and Prevention, Fred Hutchinson Cancer Research Center, Seattle, Washington 98109, United States
| | - Gordon Chau
- Statistical Center for HIV/AIDS Research and Prevention, Fred Hutchinson Cancer Research Center, Seattle, Washington 98109, United States
| | - Adeola Adeyeye
- Division of AIDS, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, Maryland 20852, United States
| | - Alex R Rinehart
- ViiV Healthcare, Durham, North Carolina 27709, United States
| | | | - Joseph S Eron
- University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Myron S Cohen
- University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Raphael J Landovitz
- UCLA Center for Clinical AIDS Research and Education, Los Angeles, California 90035, United States
| | - Craig W Hendrix
- Department of Medicine, Division of Clinical Pharmacology, The Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
| | - Namandjé N Bumpus
- Department of Pharmacology and Molecular Sciences, The Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
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19
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Templeton I, Eichenbaum G, Sane R, Zhou J. Case Study 6: Deconvoluting Hyperbilirubinemia-Differentiating Between Hepatotoxicity and Reversible Inhibition of UGT1A1, MRP2, or OATP1B1 in Drug Development. Methods Mol Biol 2021; 2342:695-707. [PMID: 34272713 DOI: 10.1007/978-1-0716-1554-6_25] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
New molecular entities (NMEs) are evaluated using a rigorous set of in vitro and in vivo studies to assess their safety and suitability for testing in humans. Regulatory health authorities require that therapeutic and supratherapeutic doses be administered, by the intended route of administration, to two nonclinical species prior to human testing. The purpose of these studies is to identify potential target organ toxicity and to determine if the effects are reversible. Liver is a potential site for toxicity caused by orally administered NMEs due to high exposure during first pass after oral administration. A range of clinical chemistry analytes are routinely measured in both nonclinical and clinical studies to evaluate and monitor for hepatotoxicity. While bilirubin itself circulates within a wide range of concentrations in many animal species and humans, without causing adverse effects and possibly providing benefits, bilirubin is one of the few readily monitored circulating biomarkers that can provide insight into liver function. Therefore, any changes in plasma or urine bilirubin levels must be carefully evaluated. Changes in bilirubin may occur as a result of adaptive nontoxic changes or severe toxicity. Examples of adaptive nontoxic changes in liver function, which may elevate direct (conjugated) and/or indirect (unconjugated) bilirubin above baseline levels, include reversible inhibition of UGT1A1-mediated bilirubin metabolism and OATP1B1-, OATP1B3-, or MRP2-mediated transport. Alternatively, hepatocellular necrosis, hypoalbuminuria, or cholestasis may also lead to elevation of bilirubin; in some cases, these effects may be irreversible.This chapter aims to demonstrate application of enzyme kinetic principles in understanding the risk of bilirubin elevation through inhibition of multiple processes-involving both enzymes and transporters. In the sections that follow, we first provide a brief summary of bilirubin formation and disposition. Two case examples are then provided to illustrate the enzyme kinetic studies needed for risk assessment and for identifying the mechanisms of bilirubin elevation. Caveats of methods and data interpretation are discussed in these case studies. The data presented in this chapter is unpublished at the time of compilation of this book. It has been incorporated in this chapter to provide a sense of complexities in enzyme kinetics to the reader.
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Affiliation(s)
| | - Gary Eichenbaum
- Translational Science and Safety, Office of the Chief Medical Officer, Johnson & Johnson, Raritan, NJ, USA
| | - Rucha Sane
- Department of Clinical Pharmacology, Genentech Inc., South San Francisco, CA, USA
| | - Jin Zhou
- Boehringer Ingelheim Pharmaceuticals Inc., Ridgefield, CT, USA
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Zhou J, Argikar UA, Miners JO. Enzyme Kinetics of Uridine Diphosphate Glucuronosyltransferases (UGTs). Methods Mol Biol 2021; 2342:301-338. [PMID: 34272700 DOI: 10.1007/978-1-0716-1554-6_12] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Glucuronidation, catalyzed by uridine diphosphate glucuronosyltransferases (UGTs), is an important process for the metabolism and clearance of many lipophilic chemicals, including drugs, environmental chemicals, and endogenous compounds. Glucuronidation is a bisubstrate reaction that requires the aglycone and the cofactor, UDP-GlcUA. Accumulating evidence suggests that the bisubstrate reaction follows a compulsory-order ternary mechanism. To simplify the kinetic modeling of glucuronidation reactions in vitro, UDP-GlcUA is usually added to incubations in large excess. Many factors have been shown to influence UGT activity and kinetics in vitro, and these must be accounted for during experimental design and data interpretation. While the assessment of drug-drug interactions resulting from UGT inhibition has been challenging in the past, the increasing availability of UGT enzyme-selective substrate and inhibitor "probes" provides the prospect for more reliable reaction phenotyping and assessment of drug-drug interaction potential. Although extrapolation of the in vitro intrinsic clearance of a glucuronidated drug often underpredicts in vivo clearance, careful selection of in vitro experimental conditions and inclusion of extrahepatic glucuronidation may improve the predictivity of in vitro-in vivo extrapolation. Physiologically based pharmacokinetic (PBPK) modeling has also shown to be of value for predicting PK of drugs eliminated by glucuronidation.
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Affiliation(s)
- Jin Zhou
- Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, CT, USA.
| | - Upendra A Argikar
- Translational Medicine, Novartis Institutes for BioMedical Research, Inc., Cambridge, MA, USA
| | - John O Miners
- Department of Clinical Pharmacology, College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia
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21
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Hanioka N, Isobe T, Tanaka-Kagawa T, Jinno H, Ohkawara S. In vitro glucuronidation of bisphenol A in liver and intestinal microsomes: interspecies differences in humans and laboratory animals. Drug Chem Toxicol 2020; 45:1565-1569. [PMID: 33187449 DOI: 10.1080/01480545.2020.1847133] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Bisphenol A (BPA) is an endocrine-disrupting chemical, and is predominantly metabolized into glucuronide in mammals. The present study was conducted in order to examine the hepatic and intestinal glucuronidation of BPA in humans and laboratory animals such as monkeys, dogs, rats, and mice in an in vitro system using microsomal fractions. Km, Vmax, and CLint values in human liver microsomes were 7.54 µM, 17.7 nmol/min/mg protein, and 2.36 mL/min/mg protein, respectively. CLint values in liver microsomes of monkey, dogs, rats, and mice were 1.5-, 2.4-, 1.7- and 8.2-fold that of humans, respectively. In intestinal microsomes, Km, Vmax, and CLint values in humans were 39.3 µM, 0.65 nmol/min/mg protein, and 0.02 mL/min/mg protein, respectively. The relative levels of CLint in monkey, dogs, rats, and mice to that of humans were 7.0-, 12-, 34-, and 29-fold, respectively. Although CLint values were higher in liver microsomes than in intestinal microsomes in all species, and marked species difference in the ratio of liver to intestinal microsomes was observed as follows: humans, 118; monkeys, 25; dogs, 23; rats, 5.9; mice, 33. These results suggest that the functional roles of UDP-glucuronosyltransferase (UGT) enzymes expressed in the liver and intestines in the metabolism of BPA extensively differ among humans, monkeys, dogs, rats, and mice.
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Affiliation(s)
- Nobumitsu Hanioka
- Department of Health Pharmacy, Yokohama University of Pharmacy, Yokohama, Japan
| | - Takashi Isobe
- Department of Health Pharmacy, Yokohama University of Pharmacy, Yokohama, Japan
| | | | - Hideto Jinno
- Faculty of Pharmacy, Meijo University, Nagoya, Japan
| | - Susumu Ohkawara
- Department of Health Pharmacy, Yokohama University of Pharmacy, Yokohama, Japan
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22
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Niu S, Li Y, Dong W, Xia L, Shen T, Wang J, Wang Q, Zhang T, Zhang M, Liu G, Guo D, Fang Y. A Randomized Study on the Bioequivalence of Desloratadine in Healthy Chinese Subjects and the Association of Different Metabolic Phenotypes With UGT2B10 and CYP2C8 Genotypes. Curr Drug Metab 2020; 21:1031-1039. [PMID: 33109037 DOI: 10.2174/1389200221999201027143903] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 09/24/2020] [Accepted: 09/29/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Desloratadine is a drug with a phenotypic polymorphism in metabolism and has been approved for use in many countries to treat allergic diseases. CYP2C8 and UGT2B10 are metabolic enzymes, which may be involved in the metabolism of desloratadine. OBJECTIVE This study aimed to demonstrate bioequivalence between the test product (desloratadine tablet) and the reference product AERIUS (5mg), both orally administered. And the role of UGT2B10 and CYP2C8 genotypes in healthy Chinese subjects with different Desloratadine metabolic phenotypes was examined. METHODS It was a randomized, open-label, and four-sequence, single-dose crossover study conducted on 56 healthy Chinese subjects. The pharmacokinetics (PK) and safety of the test and reference Desloratadine products were compared. UGT2B10 and CYP2C8 genotypes were determined by the TaqMan assay using genomic DNA. Multiple linear regression was applied to analyze the correlation between genotypes and the metabolic ratio. RESULTS The mean serum concentration-time curves of desloratadine and 3-OH-desloratadine were similar between the test product and the reference product. For the PK similarity comparison, the 90% CIs for the geometric mean ratios of Cmax, AUC0-t, and AUC0-∞ of desloratadine and 3-OH-desloratadine of test and reference product were completely within 80-125%. None of all 56 subjects had serious adverse events. Only 2 subjects were poor-metabolizers in 56 healthy subjects. There was no significant correlation between investigated genotypes of CYP2C8 and UGT2B10 and the metabolic ratio. CONCLUSION The test desloratadine tablet was bioequivalent to the reference product. No direct relationship between CYP2C8 and UGT2B10 genotypes and desloratadine metabolic ratio was identified.
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Affiliation(s)
- Suping Niu
- Scientific Research Department, Clinical Trial Institution, Peking University People's Hospital, Beijing, China
| | - Yan Li
- Department of Pharmacy, Jincheng General Hospital, Jincheng, China
| | - Wenliang Dong
- Department of Pharmacy, Peking University People's Hospital, Beijing, China
| | - Lin Xia
- Department of Pharmacy, Peking University People's Hospital, Beijing, China
| | - Tiantian Shen
- Department of Pharmacy, Peking University People's Hospital, Beijing, China
| | - Jiaxue Wang
- Department of Pharmacy, Peking University People's Hospital, Beijing, China
| | - Qian Wang
- Nursing Department, Peking University People's Hospital, Beijing, China
| | - Tan Zhang
- Leiden Academic Center for Drug Research, Faculty of Science, Leiden University, Leiden, Netherlands
| | - Minjie Zhang
- Beijing United-Power Pharma Tech Co. Ltd. Beijing, China
| | - Gang Liu
- Department of Pharmacy, Peking University People's Hospital, Beijing, China
| | - Danjie Guo
- Scientific Research Department, Clinical Trial Institution, Peking University People's Hospital, Beijing, China
| | - Yi Fang
- Department of Pharmacy, Peking University People's Hospital, Beijing, China
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23
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Docci L, Klammers F, Ekiciler A, Molitor B, Umehara K, Walter I, Krähenbühl S, Parrott N, Fowler S. In Vitro to In Vivo Extrapolation of Metabolic Clearance for UGT Substrates Using Short-Term Suspension and Long-Term Co-cultured Human Hepatocytes. AAPS JOURNAL 2020; 22:131. [DOI: 10.1208/s12248-020-00482-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Accepted: 07/10/2020] [Indexed: 01/08/2023]
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24
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Docci L, Umehara K, Krähenbühl S, Fowler S, Parrott N. Construction and Verification of Physiologically Based Pharmacokinetic Models for Four Drugs Majorly Cleared by Glucuronidation: Lorazepam, Oxazepam, Naloxone, and Zidovudine. AAPS JOURNAL 2020; 22:128. [DOI: 10.1208/s12248-020-00513-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 09/24/2020] [Indexed: 02/07/2023]
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25
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Jiang L, Wang Z, Wang X, Wang S, Wang Z, Liu Y. Piceatannol exhibits potential food-drug interactions through the inhibition of human UDP-glucuronosyltransferase (UGT) in Vitro. Toxicol In Vitro 2020; 67:104890. [DOI: 10.1016/j.tiv.2020.104890] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Revised: 05/01/2020] [Accepted: 05/16/2020] [Indexed: 12/01/2022]
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26
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Yamane M, Igarashi F, Yamauchi T, Nakagawa T. Main contribution of UGT1A1 and CYP2C9 in the metabolism of UR-1102, a novel agent for the treatment of gout. Xenobiotica 2020; 51:61-71. [PMID: 32813611 DOI: 10.1080/00498254.2020.1812012] [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: 10/23/2022]
Abstract
UR-1102, a novel uricosuric agent for treating gout, has been confirmed to exhibit a pharmacological effect in patients. We clarified its metabolic pathway, estimated the contribution of each metabolic enzyme, and assessed the impact of genetic polymorphisms using human in vitro materials. Glucuronide, sulfate and oxidative metabolites of UR-1102 were detected in human hepatocytes. The intrinsic clearance by glucuronidation or oxidation in human liver microsomes was comparable, but sulfation in the cytosol was much lower, indicating that the rank order of contribution was glucuronidation ≥ oxidation > sulfation. Recombinant UGT1A1 and UGT1A3 showed high glucuronidation of UR-1102. We took advantage of a difference in the inhibitory sensitivity of atazanavir to the UGT isoforms and estimated the fraction metabolised (fm) with UGT1A1 to be 70%. Studies using recombinant CYPs and CYP isoform-specific inhibitors showed that oxidation was mediated exclusively by CYP2C9. The effect of UGT1A1 and CYP2C9 inhibitors on UR-1102 metabolism in hepatocytes did not differ markedly between the wild type and variants.
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Affiliation(s)
- Mizuki Yamane
- Research Division, Chugai Pharmaceutical Co., Ltd., Kamakura, Japan
| | | | | | - Toshito Nakagawa
- Research Division, Chugai Pharmaceutical Co., Ltd., Kamakura, Japan
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27
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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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Achour B, Al-Majdoub ZM, Rostami-Hodjegan A, Barber J. Mass Spectrometry of Human Transporters. ANNUAL REVIEW OF ANALYTICAL CHEMISTRY (PALO ALTO, CALIF.) 2020; 13:223-247. [PMID: 32084322 DOI: 10.1146/annurev-anchem-091719-024553] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Transporters are key to understanding how an individual will respond to a particular dose of a drug. Two patients with similar systemic concentrations may have quite different local concentrations of a drug at the required site. The transporter profile of any individual depends upon a variety of genetic and environmental factors, including genotype, age, and diet status. Robust models (virtual patients) are therefore required and these models are data hungry. Necessary data include quantitative transporter profiles at the relevant organ. Liquid chromatography with tandem mass spectrometry (LC-MS/MS) is currently the most powerful method available for obtaining this information. Challenges include sourcing the tissue, isolating the hydrophobic membrane-embedded transporter proteins, preparing the samples for MS (including proteolytic digestion), choosing appropriate quantification methodology, and optimizing the LC-MS/MS conditions. Great progress has been made with all of these, especially within the last few years, and is discussed here.
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Affiliation(s)
- Brahim Achour
- Centre for Applied Pharmacokinetic Research, School of Health Sciences, University of Manchester, Manchester M13 9PT, United Kingdom;
| | - Zubida M Al-Majdoub
- Centre for Applied Pharmacokinetic Research, School of Health Sciences, University of Manchester, Manchester M13 9PT, United Kingdom;
| | - Amin Rostami-Hodjegan
- Centre for Applied Pharmacokinetic Research, School of Health Sciences, University of Manchester, Manchester M13 9PT, United Kingdom;
- Certara, Princeton, New Jersey 08540, USA
| | - Jill Barber
- Centre for Applied Pharmacokinetic Research, School of Health Sciences, University of Manchester, Manchester M13 9PT, United Kingdom;
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Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)-Based Proteomics of Drug-Metabolizing Enzymes and Transporters. Molecules 2020; 25:molecules25112718. [PMID: 32545386 PMCID: PMC7321193 DOI: 10.3390/molecules25112718] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 06/06/2020] [Accepted: 06/08/2020] [Indexed: 12/19/2022] Open
Abstract
Liquid chromatography-tandem mass spectrometry (LC-MS/MS)-based proteomics is a powerful tool for identifying and quantifying proteins in biological samples, outperforming conventional antibody-based methods in many aspects. LC-MS/MS-based proteomics studies have revealed the protein abundances of many drug-metabolizing enzymes and transporters (DMETs) in tissues relevant to drug metabolism and disposition. Previous studies have consistently demonstrated marked interindividual variability in DMET protein expression, suggesting that varied DMET function is an important contributing factor for interindividual variability in pharmacokinetics (PK) and pharmacodynamics (PD) of medications. Moreover, differential DMET expression profiles were observed across different species and in vitro models. Therefore, caution must be exercised when extrapolating animal and in vitro DMET proteomics findings to humans. In recent years, DMET proteomics has been increasingly utilized for the development of physiologically based pharmacokinetic models, and DMET proteins have also been proposed as biomarkers for prediction of the PK and PD of the corresponding substrate drugs. In sum, despite the existence of many challenges in the analytical technology and data analysis methods of LC-MS/MS-based proteomics, DMET proteomics holds great potential to advance our understanding of PK behavior at the individual level and to optimize treatment regimens via the DMET protein biomarker-guided precision pharmacotherapy.
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Zhang H, Wolford C, Basit A, Li AP, Fan PW, Murray BP, Takahashi RH, Khojasteh SC, Smith BJ, Thummel KE, Prasad B. Regional Proteomic Quantification of Clinically Relevant Non-Cytochrome P450 Enzymes along the Human Small Intestine. Drug Metab Dispos 2020; 48:528-536. [DOI: 10.1124/dmd.120.090738] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Accepted: 03/18/2020] [Indexed: 12/24/2022] Open
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Badée J, Fowler S, de Wildt SN, Collier AC, Schmidt S, Parrott N. The Ontogeny of UDP-glucuronosyltransferase Enzymes, Recommendations for Future Profiling Studies and Application Through Physiologically Based Pharmacokinetic Modelling. Clin Pharmacokinet 2020; 58:189-211. [PMID: 29862468 DOI: 10.1007/s40262-018-0681-2] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Limited understanding of drug pharmacokinetics in children is one of the major challenges in paediatric drug development. This is most critical in neonates and infants owing to rapid changes in physiological functions, especially in the activity of drug-metabolising enzymes. Paediatric physiologically based pharmacokinetic models that integrate ontogeny functions for cytochrome P450 enzymes have aided our understanding of drug exposure in children, including those under the age of 2 years. Paediatric physiologically based pharmacokinetic models have consequently been recognised by the European Medicines Agency and the US Food and Drug Administration as innovative tools in paediatric drug development and regulatory decision making. However, little is currently known about age-related changes in UDP-glucuronosyltransferase-mediated metabolism, which represents the most important conjugation reaction for xenobiotics. Therefore, the objective of the review was to conduct a thorough literature survey to summarise our current understanding of age-related changes in UDP-glucuronosyltransferases as well as associated clinical and experimental sources of variance. Our findings indicate that there are distinct differences in UDP-glucuronosyltransferase expression and activity between isoforms for different age groups. In addition, there is substantial variability between individuals and laboratories reported for human liver microsomes, which results in part from a lack of standardised experimental conditions. Therefore, we provide a number of best practice recommendations for experimental conditions, which ultimately may help improve the quality of data used for quantitative clinical pharmacology approaches, and thus for safe and effective pharmacotherapy in children.
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Affiliation(s)
- Justine Badée
- Department of Pharmaceutics, Center for Pharmacometrics and Systems Pharmacology, University of Florida at Lake Nona, Orlando, FL, USA
| | - Stephen Fowler
- Pharmaceutical Sciences, Roche Pharma Research and Early Development, Roche Innovation Centre Basel, Grenzacherstrasse 124, 4070, Basel, Switzerland
| | - Saskia N de Wildt
- Department of Pharmacology and Toxicology, Radboud University, Nijmegen, The Netherlands.,Intensive Care and Department of Paediatric Surgery, Erasmus MC Sophia Children's Hospital, Rotterdam, The Netherlands
| | - Abby C Collier
- Faculty of Pharmaceutical Sciences, The University of British Columbia, Vancouver, BC, Canada
| | - Stephan Schmidt
- Department of Pharmaceutics, Center for Pharmacometrics and Systems Pharmacology, University of Florida at Lake Nona, Orlando, FL, USA
| | - Neil Parrott
- Pharmaceutical Sciences, Roche Pharma Research and Early Development, Roche Innovation Centre Basel, Grenzacherstrasse 124, 4070, Basel, Switzerland.
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Hanioka N, Isobe T, Tanaka-Kagawa T, Ohkawara S. Wogonin glucuronidation in liver and intestinal microsomes of humans, monkeys, dogs, rats, and mice. Xenobiotica 2020; 50:906-912. [PMID: 32005083 DOI: 10.1080/00498254.2020.1725180] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Wogonin, one of the flavonoids isolated from Scutellaria baicalensis, exhibits some beneficial bioactivities, including anti-inflammatory and anticancer effects, and is metabolized into glucuronide by UDP-glucuronosyltransferase (UGT) enzymes in humans. In the present study, wogonin glucuronidation was examined in the liver and intestinal microsomes of humans, monkeys, dogs, rats, and mice using a kinetic analysis.The kinetics of wogonin glucuronidation by liver microsomes followed the biphasic model in all species examined. CLint values (x-intercept) based on v versus V/[S] plots were rats > humans ≈ monkeys > mice > dogs. The kinetics of intestinal microsomes fit the Michaelis-Menten model for humans, monkeys, rats, and mice and the substrate inhibition model for dogs. CLint values were rats > monkeys > mice > dogs > humans. The tissue dependence of CLint values was liver microsomes > intestinal microsomes for humans, dogs, and rats, and liver microsomes ≈ intestinal microsomes for monkeys and mice.These results demonstrated that the metabolic abilities of UGT enzymes toward wogonin in the liver and intestines markedly differ among humans, monkeys, dogs, rats, and mice, and suggest that species differences are closely associated with the biological effects of wogonin.
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Affiliation(s)
- Nobumitsu Hanioka
- Department of Health Pharmacy, Yokohama University of Pharmacy, Yokohama, Japan
| | - Takashi Isobe
- Department of Health Pharmacy, Yokohama University of Pharmacy, Yokohama, Japan
| | | | - Susumu Ohkawara
- Department of Health Pharmacy, Yokohama University of Pharmacy, Yokohama, Japan
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Couto N, Al-Majdoub ZM, Gibson S, Davies PJ, Achour B, Harwood MD, Carlson G, Barber J, Rostami-Hodjegan A, Warhurst G. Quantitative Proteomics of Clinically Relevant Drug-Metabolizing Enzymes and Drug Transporters and Their Intercorrelations in the Human Small Intestine. Drug Metab Dispos 2020; 48:245-254. [PMID: 31959703 PMCID: PMC7076527 DOI: 10.1124/dmd.119.089656] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Accepted: 12/23/2019] [Indexed: 01/02/2023] Open
Abstract
The levels of drug-metabolizing enzymes (DMEs) and transporter proteins in the human intestine are pertinent to determine oral drug bioavailability. Despite the paucity of reports on such measurements, it is well recognized that these values are essential for translating in vitro data on drug metabolism and transport to predict drug disposition in gut wall. In the current study, clinically relevant DMEs [cytochrome P450 (P450) and uridine 5′-diphospho-glucuronosyltransferase (UGT)] and drug transporters were quantified in total mucosal protein preparations from the human jejunum (n = 4) and ileum (n = 12) using quantification concatemer–based targeted proteomics. In contrast to previous reports, UGT2B15 and organic anion-transporting polypeptide 1 (OATP1A2) were quantifiable in all our samples. Overall, no significant disparities in protein expression were observed between jejunum and ileum. Relative mRNA expression for drug transporters did not correlate with the abundance of their cognate protein, except for P-glycoprotein 1 (P-gp) and organic solute transporter subunit alpha (OST-α), highlighting the limitations of RNA as a surrogate for protein expression in dynamic tissues with high turnover. Intercorrelations were found within P450 [2C9-2C19 (P = 0.002, R2 = 0.63), 2C9–2J2 (P = 0.004, R2 = 0.40), 2D6-2J2 (P = 0.002, R2 = 0.50)] and UGT [1A1-2B7 (P = 0.02, R2 = 0.87)] family of enzymes. There were also correlations between P-gp and several other proteins [OST-α (P < 0.0001, R2 = 0.77), UGT1A6 (P = 0.009, R2 = 0.38), and CYP3A4 (P = 0.007, R2 = 0.30)]. Incorporating such correlations into building virtual populations is crucial for obtaining plausible characteristics of simulated individuals.
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Affiliation(s)
- Narciso Couto
- Centre for Applied Pharmacokinetic Research, University of Manchester, Manchester, United Kingdom (N.C., Z.M.A.-M., B.A., J.B., A.R.-H.); Gut Barrier Group, Inflammation and Repair, University of Manchester, Salford Royal NHS Trust, Salford, United Kingdom (S.G., P.J.D., G.C., G.W.); and Certara UK Limited (Simcyp Division), Sheffield, United Kingdom (M.D.H., A.R.-H.)
| | - Zubida M Al-Majdoub
- Centre for Applied Pharmacokinetic Research, University of Manchester, Manchester, United Kingdom (N.C., Z.M.A.-M., B.A., J.B., A.R.-H.); Gut Barrier Group, Inflammation and Repair, University of Manchester, Salford Royal NHS Trust, Salford, United Kingdom (S.G., P.J.D., G.C., G.W.); and Certara UK Limited (Simcyp Division), Sheffield, United Kingdom (M.D.H., A.R.-H.)
| | - Stephanie Gibson
- Centre for Applied Pharmacokinetic Research, University of Manchester, Manchester, United Kingdom (N.C., Z.M.A.-M., B.A., J.B., A.R.-H.); Gut Barrier Group, Inflammation and Repair, University of Manchester, Salford Royal NHS Trust, Salford, United Kingdom (S.G., P.J.D., G.C., G.W.); and Certara UK Limited (Simcyp Division), Sheffield, United Kingdom (M.D.H., A.R.-H.)
| | - Pamela J Davies
- Centre for Applied Pharmacokinetic Research, University of Manchester, Manchester, United Kingdom (N.C., Z.M.A.-M., B.A., J.B., A.R.-H.); Gut Barrier Group, Inflammation and Repair, University of Manchester, Salford Royal NHS Trust, Salford, United Kingdom (S.G., P.J.D., G.C., G.W.); and Certara UK Limited (Simcyp Division), Sheffield, United Kingdom (M.D.H., A.R.-H.)
| | - Brahim Achour
- Centre for Applied Pharmacokinetic Research, University of Manchester, Manchester, United Kingdom (N.C., Z.M.A.-M., B.A., J.B., A.R.-H.); Gut Barrier Group, Inflammation and Repair, University of Manchester, Salford Royal NHS Trust, Salford, United Kingdom (S.G., P.J.D., G.C., G.W.); and Certara UK Limited (Simcyp Division), Sheffield, United Kingdom (M.D.H., A.R.-H.)
| | - Matthew D Harwood
- Centre for Applied Pharmacokinetic Research, University of Manchester, Manchester, United Kingdom (N.C., Z.M.A.-M., B.A., J.B., A.R.-H.); Gut Barrier Group, Inflammation and Repair, University of Manchester, Salford Royal NHS Trust, Salford, United Kingdom (S.G., P.J.D., G.C., G.W.); and Certara UK Limited (Simcyp Division), Sheffield, United Kingdom (M.D.H., A.R.-H.)
| | - Gordon Carlson
- Centre for Applied Pharmacokinetic Research, University of Manchester, Manchester, United Kingdom (N.C., Z.M.A.-M., B.A., J.B., A.R.-H.); Gut Barrier Group, Inflammation and Repair, University of Manchester, Salford Royal NHS Trust, Salford, United Kingdom (S.G., P.J.D., G.C., G.W.); and Certara UK Limited (Simcyp Division), Sheffield, United Kingdom (M.D.H., A.R.-H.)
| | - Jill Barber
- Centre for Applied Pharmacokinetic Research, University of Manchester, Manchester, United Kingdom (N.C., Z.M.A.-M., B.A., J.B., A.R.-H.); Gut Barrier Group, Inflammation and Repair, University of Manchester, Salford Royal NHS Trust, Salford, United Kingdom (S.G., P.J.D., G.C., G.W.); and Certara UK Limited (Simcyp Division), Sheffield, United Kingdom (M.D.H., A.R.-H.)
| | - Amin Rostami-Hodjegan
- Centre for Applied Pharmacokinetic Research, University of Manchester, Manchester, United Kingdom (N.C., Z.M.A.-M., B.A., J.B., A.R.-H.); Gut Barrier Group, Inflammation and Repair, University of Manchester, Salford Royal NHS Trust, Salford, United Kingdom (S.G., P.J.D., G.C., G.W.); and Certara UK Limited (Simcyp Division), Sheffield, United Kingdom (M.D.H., A.R.-H.)
| | - Geoffrey Warhurst
- Centre for Applied Pharmacokinetic Research, University of Manchester, Manchester, United Kingdom (N.C., Z.M.A.-M., B.A., J.B., A.R.-H.); Gut Barrier Group, Inflammation and Repair, University of Manchester, Salford Royal NHS Trust, Salford, United Kingdom (S.G., P.J.D., G.C., G.W.); and Certara UK Limited (Simcyp Division), Sheffield, United Kingdom (M.D.H., A.R.-H.)
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Quantitative mass spectrometry-based proteomics in the era of model-informed drug development: Applications in translational pharmacology and recommendations for best practice. Pharmacol Ther 2019; 203:107397. [DOI: 10.1016/j.pharmthera.2019.107397] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Accepted: 07/29/2019] [Indexed: 02/08/2023]
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Maeda N, Okumura K, Yamaguchi K, Haeno S, Yasui Y, Kimura N, Ieko T, Miyasho T, Yokota H. Rapid prolactin induction in adult male rats after treatment with diethylstilbestrol. J Neuroendocrinol 2019; 31:e12769. [PMID: 31283846 DOI: 10.1111/jne.12769] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2018] [Revised: 06/29/2019] [Accepted: 07/03/2019] [Indexed: 12/18/2022]
Abstract
Diethylstilbestrol (DES) is a synthetic oestrogen known to disrupt the endocrine system and to cause reproductive toxicity mediated via the hypothalamic-pituitary-adrenal axis; however, its molecular mechanism of action is poorly understood. In the present study, we found that, after only 1 week of exposure to DES, blood testosterone dramatically decreased and that this decrease was associated with a strong induction of prolactin (PRL). Even with the increase in PRL, the luteinising hormone and follicle-stimulating hormone mRNAs slightly decreased. Our results show that, after 48 hours of a single dose of DES, there was a six-fold increase in PRL expression. After exploring the upstream mechanisms, we determined that dopamine, which inhibits PRL secretion in male rats, did not decrease in the pituitary gland of DES-treated rats, whereas vasoactive intestinal peptide (VIP), which mediates the acute release of PRL, was elevated. Serotonin (5-HT) increased in the brain of male rats 24 hours after a single DES treatment; however, PRL, VIP or 5-HT was not induced by DES in female rats. Our results indicate that DES induces the expression of pituitary PRL in male rats by stimulating VIP in the hypothalamus and 5-HT in the central nervous system.
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Affiliation(s)
- Naoyuki Maeda
- Laboratory of Meat Science and Technology, Department of Food Science and Human Wellness, Rakuno Gakuen University, Hokkaido, Japan
- Safety Research Institute for Chemical Compounds Co., Ltd, Sapporo, Japan
- Laboratory of Veterinary Biochemistry, Department of Veterinary Medicine, Rakuno Gakuen University, Hokkaido, Japan
- Japan Meat Science and Technology Institute, Shibuya-ku, Tokyo, Japan
| | - Kanako Okumura
- Safety Research Institute for Chemical Compounds Co., Ltd, Sapporo, Japan
- Laboratory of Veterinary Biochemistry, Department of Veterinary Medicine, Rakuno Gakuen University, Hokkaido, Japan
| | - Kousuke Yamaguchi
- Laboratory of Veterinary Biochemistry, Department of Veterinary Medicine, Rakuno Gakuen University, Hokkaido, Japan
- Graduate School of Arts and Sciences, University of Tokyo, Meguro, Tokyo, Japan
| | - Satoko Haeno
- Laboratory of Veterinary Biochemistry, Department of Veterinary Medicine, Rakuno Gakuen University, Hokkaido, Japan
| | - Yumiko Yasui
- Laboratory of Veterinary Physiology and Nutrition, Department of Veterinary Science, Rakuno Gakuen University, Hokkaido, Japan
| | - Nobuya Kimura
- Public Nutrition, Department of Food Science and Human Wellness, Rakuno Gakuen University, Hokkaido, Japan
| | - Takahiro Ieko
- Laboratory of Veterinary Biochemistry, Department of Veterinary Medicine, Rakuno Gakuen University, Hokkaido, Japan
| | - Taku Miyasho
- Laboratory of Animal Biological Responses, Department of Veterinary Science, Rakuno Gakuen University, Hokkaido, Japan
| | - Hiroshi Yokota
- Laboratory of Veterinary Biochemistry, Department of Veterinary Medicine, Rakuno Gakuen University, Hokkaido, Japan
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S-equol glucuronidation in liver and intestinal microsomes of humans, monkeys, dogs, rats, and mice. Food Chem Toxicol 2019; 131:110542. [PMID: 31163218 DOI: 10.1016/j.fct.2019.05.050] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Revised: 05/26/2019] [Accepted: 05/29/2019] [Indexed: 11/22/2022]
Abstract
S-equol, an active metabolite of the soy isoflavone daidzein, is mainly metabolized into glucuronide(s) by UDP-glucuronosyltransferase (UGT) enzymes in mammals. In the present study, S-equol glucuronidation was examined in the liver and intestinal microsomes of humans, monkeys, dogs, rats, and mice using a kinetic analysis. CLint values for 7- and 4'-glucuronidation by liver microsomes were higher than those by intestinal microsomes in all species. CLint values for total glucuronidation (sum of 7- and 4'-glucuronidation) were rats (7.6) > monkeys (5.8) > mice (4.9) > dogs (2.8) > humans (1.0) for liver microsomes, and rats (9.6) > mice (2.8) > dogs (1.3) ≥ monkeys (1.2) > humans (1.0) for intestinal microsomes, respectively. Regarding regioselective glucuronidation by liver and intestinal microsomes, CLint values were 7-glucuronidation > 4'-glucuronidation for humans, monkeys, dogs, and mice, and 4'-glucuronidation > 7-glucuronidation for rats. These results suggest that the metabolic abilities of UGT enzymes toward S-equol in the liver and intestines markedly differ among humans, monkeys, dogs, rats, and mice.
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Label-free absolute protein quantification with data-independent acquisition. J Proteomics 2019; 200:51-59. [PMID: 30880166 DOI: 10.1016/j.jprot.2019.03.005] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Revised: 02/19/2019] [Accepted: 03/06/2019] [Indexed: 02/05/2023]
Abstract
Despite data-independent acquisition (DIA) has been increasingly used for relative protein quantification, DIA-based label-free absolute quantification method has not been fully established. Here we present a novel DIA method using the TPA algorithm (DIA-TPA) for the absolute quantification of protein expressions in human liver microsomal and S9 samples. To validate this method, both data-dependent acquisition (DDA) and DIA experiments were conducted on 36 individual human liver microsome and S9 samples. The MS2-based DIA-TPA was able to quantify approximately twice as many proteins as the MS1-based DDA-TPA method, whereas protein concentrations determined by the two approaches were comparable. To evaluate the accuracy of the DIA-TPA method, we absolutely quantified carboxylesterase 1 concentrations in human liver S9 fractions using an established SILAC internal standard-based proteomic assay; the SILAC results were consistent with those obtained from DIA-TPA analysis. Finally, we employed a unique algorithm in DIA-TPA to distribute the MS signals from shared peptides to individual proteins or isoforms and successfully applied the method to the absolute quantification of several drug-metabolizing enzymes in human liver microsomes. In sum, the DIA-TPA method not only can absolutely quantify entire proteomes and specific proteins, but also has the capability quantifying proteins with shared peptides. SIGNIFICANCE: Data independent acquisition (DIA) has emerged as a powerful approach for relative protein quantification at the whole proteome level. However, DIA-based label-free absolute protein quantification (APQ) method has not been fully established. In the present study, we present a novel DIA-based label-free APQ approach, named DIA-TPA, with the capability absolutely quantifying proteins with shared peptides. The method was validated by comparing the quantification results of DIA-TPA with that obtained from stable isotope-labeled internal standard-based proteomic assays.
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Couto N, Al-Majdoub ZM, Achour B, Wright PC, Rostami-Hodjegan A, Barber J. Quantification of Proteins Involved in Drug Metabolism and Disposition in the Human Liver Using Label-Free Global Proteomics. Mol Pharm 2019; 16:632-647. [DOI: 10.1021/acs.molpharmaceut.8b00941] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Narciso Couto
- Centre for Applied Pharmacokinetic Research, University of Manchester, Stopford Building, Oxford Road, Manchester M13 9PT, U.K
- Department of Chemical and Biological Engineering, ChELSI Institute (Chemical Engineering at the Life Science Interface), University of Sheffield, Sir Robert Hadfield Building, Mappin Street, Sheffield S1 3JD, U.K
| | - Zubida M. Al-Majdoub
- Centre for Applied Pharmacokinetic Research, University of Manchester, Stopford Building, Oxford Road, Manchester M13 9PT, U.K
| | - Brahim Achour
- Centre for Applied Pharmacokinetic Research, University of Manchester, Stopford Building, Oxford Road, Manchester M13 9PT, U.K
| | - Phillip C. Wright
- Department of Chemical and Biological Engineering, ChELSI Institute (Chemical Engineering at the Life Science Interface), University of Sheffield, Sir Robert Hadfield Building, Mappin Street, Sheffield S1 3JD, U.K
| | - Amin Rostami-Hodjegan
- Centre for Applied Pharmacokinetic Research, University of Manchester, Stopford Building, Oxford Road, Manchester M13 9PT, U.K
- Simcyp Ltd. (a Certara company), 1 Concourse Way, Sheffield S1 2BJ, U.K
| | - Jill Barber
- Centre for Applied Pharmacokinetic Research, University of Manchester, Stopford Building, Oxford Road, Manchester M13 9PT, U.K
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Maharao N, Venitz J, Gerk PM. Use of generally recognized as safe or dietary compounds to inhibit buprenorphine metabolism: potential to improve buprenorphine oral bioavailability. Biopharm Drug Dispos 2019; 40:18-31. [PMID: 30520057 DOI: 10.1002/bdd.2166] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2018] [Revised: 11/01/2018] [Accepted: 11/26/2018] [Indexed: 12/23/2022]
Abstract
The present study evaluated the potential of five generally recognized as safe (GRAS) or dietary compounds (α-mangostin, chrysin, ginger extract, pterostilbene and silybin) to inhibit oxidative (CYP) and conjugative (UGT) metabolism using pooled human intestinal and liver microsomes. Buprenorphine was chosen as the model substrate as it is extensively metabolized by CYPs to norbuprenorphine and by UGTs to buprenorphine glucuronide. Chrysin, ginger extract, α-mangostin, pterostilbene and silybin were tested for their inhibition of the formation of norbuprenorphine or buprenorphine glucuronide in both intestinal and liver microsomes. Pterostilbene was the most potent inhibitor of norbuprenorphine formation in both intestinal and liver microsomes, with IC50 values of 1.3 and 0.8 μM, respectively, while α-mangostin and silybin most potently inhibited buprenorphine glucuronide formation. The equipotent combination of pterostilbene and ginger extract additively inhibited both pathways in intestinal microsomes. Since pterostilbene and ginger extract showed potent CYP and/or UGT inhibition of buprenorphine metabolism, their equipotent combination was tested to assess the presence of synergistic inhibition. However, because the combination showed additive inhibition, it was not used while performing IVIVE analysis. Based on quantitative in vitro-in vivo extrapolation, pterostilbene (21 mg oral dose) appeared to be most effective in improving the mean predicted Foral and AUC∞ PO of buprenorphine from 3 ± 2% and 340 ± 330 ng*min/ml to 75 ± 8% and 36,000 ± 25,000 ng*min/ml, respectively. At a 10-fold lower dose of pterostilbene, the predicted buprenorphine Foral approximated sublingual bioavailability (~35%) and showed a 2-4 fold reduction in the variability around the predicted AUC∞ PO of buprenorphine. These results demonstrate the feasibility of using various GRAS/dietary compounds to inhibit substantially the metabolism by CYP and UGT enzymes to achieve higher and less variable oral bioavailability. This inhibitor strategy may be useful for drugs suffering from low and variable oral bioavailability due to extensive presystemic oxidative and/or conjugative metabolism.
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Affiliation(s)
- Neha Maharao
- Department of Pharmaceutics, VCU School of Pharmacy, 410 N. 12th Street, Richmond, VA, 23298, USA
| | - Jurgen Venitz
- Department of Pharmaceutics, VCU School of Pharmacy, 410 N. 12th Street, Richmond, VA, 23298, USA
| | - Phillip M Gerk
- Department of Pharmaceutics, VCU School of Pharmacy, 410 N. 12th Street, Richmond, VA, 23298, USA
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Interpretation of Euphorbia Kansui Stir-Fried with Vinegar Treating Malignant Ascites by a UPLC-Q-TOF/MS Based Rat Serum and Urine Metabolomics Strategy Coupled with Network Pharmacology. Molecules 2018; 23:molecules23123246. [PMID: 30544627 PMCID: PMC6322356 DOI: 10.3390/molecules23123246] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 12/04/2018] [Accepted: 12/05/2018] [Indexed: 12/12/2022] Open
Abstract
Euphorbia kansui stir-fried with vinegar (V-kansui) has promising biological activities toward treating malignant ascites with reduced toxicity compared to crude kansui. But the mechanism concerning promoting the excretion of ascites has not been systematically studied. The purpose of this paper was to investigate the possible mechanism of V-kansui in treating malignant ascites, including metabolic pathways and molecular mechanism using an integrated serum and urine metabolomics coupled with network pharmacology. Serum and urine samples of rats were collected and analyzed by ultra-high-performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry (UPLC-Q-TOF/MS). A comparison with crude kansui was also made to demonstrate the feasibility of processing. Principle component analysis (PCA) and orthogonal partial least square discriminate analysis (OPLS-DA) were conducted to discriminate the groups, search important variables and reveal the possible pathways. A compound-target-metabolite network was finally constructed to identify the crucial targets to further understand the molecular mechanism. Sixteen significant metabolites contributing to the discrimination of model and control groups were tentatively screened out. They were mainly involved in the arachidonic acid metabolism, steroid hormone biosynthesis and primary bile acid to possibly reduce inflammatory and modulate the renin-angiotensin-aldosterone system to achieve treating malignant ascites. A bio-network starting from the compounds and ending in the metabolites was constructed to elucidate the molecular mechanism. HSP90AA1, ANXA2, PRDX6, PCNA, SOD2 and ALB were identified as the potential key targets that were responsible for the treatment of malignant ascites by the parameter combining the average shortest path length and betweenness centrality. The correlated 17 compounds were considered as the potential active ingredients in V-kansui. In addition, the metabolomics showed that the effect of V-kansui was almost in accordance with crude kansui. These results systematically revealed the mechanism of V-kansui against malignant ascites for the first time using metabolomics coupled with network pharmacology. V-kansui could be a promising safe and therapeutic medicine for the excretion of ascites.
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Fritz A, Busch D, Lapczuk J, Ostrowski M, Drozdzik M, Oswald S. Expression of clinically relevant drug-metabolizing enzymes along the human intestine and their correlation to drug transporters and nuclear receptors: An intra-subject analysis. Basic Clin Pharmacol Toxicol 2018; 124:245-255. [PMID: 30253071 DOI: 10.1111/bcpt.13137] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Accepted: 09/18/2018] [Indexed: 12/23/2022]
Abstract
The oral bioavailability of many drugs is highly influenced not only by hepatic but also by intestinal biotransformation. To estimate the impact of intestinal phase I and II metabolism on oral drug absorption, knowledge on the expression levels of the respective enzymes is an essential prerequisite. In addition, the potential interplay of metabolism and transport contributes to drug disposition. Both mechanisms may be subjected to coordinative regulation by nuclear receptors, leading to unwanted drug-drug interactions due to induction of intestinal metabolism and transport. Thus, it was the aim of this study to comprehensively analyse the regional expression of clinically relevant phase I and II enzymes along the entire human intestine and to correlate these data to expression data of drug transporters and nuclear receptors of pharmacokinetic relevance. Gene expression of 11 drug-metabolizing enzymes (CYP2B6, 2C8, 2C9, 2C19, 2D6, 3A4, 3A5, SULT1A, UGT1A, UGT2B7, UGT2B15) was studied in duodenum, jejunum, ileum and colon from six organ donors by real-time RT-PCR. Enzyme expression was correlated with expression data of the nuclear receptors PXR, CAR and FXR as well as drug transporters observed in the same cohort. Intestinal expression of all studied metabolizing enzymes was significantly higher in the small intestine compared to colonic tissue. CYP2B6, CYP2C9, CYP2C19, CYP2D6, CYP3A4/5, SULT1A, UGT1A and UGT2B7 expression increased from the duodenum to jejunum but was markedly lower in the ileum. In the small intestine, that is, the predominant site of drug absorption, the highest expression has been observed for CYP3A4, CYP2C9, SULT1A and UGT1A. In addition, significant correlations were found between several enzymes and PXR as well as ABC transporters in the small intestine. In conclusion, the observed substantial site-dependent intestinal expression of several enzymes may explain regional differences in intestinal drug absorption. The detected correlations between intestinal enzymes, transporters and nuclear receptors provide indirect evidence for their coordinative expression, regulation and function in the human small intestine.
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Affiliation(s)
- Anja Fritz
- Department of Clinical Pharmacology, Center of Drug Absorption and Transport, University Medicine Greifswald, Greifswald, Germany
| | - Diana Busch
- Department of Clinical Pharmacology, Center of Drug Absorption and Transport, University Medicine Greifswald, Greifswald, Germany
| | - Joanna Lapczuk
- Department of Experimental and Clinical Pharmacology, Pomeranian Medical University, Szczecin, Poland
| | - Marek Ostrowski
- Department of General and Transplantation Surgery, Pomeranian Medical University, Szczecin, Poland
| | - Marek Drozdzik
- Department of Experimental and Clinical Pharmacology, Pomeranian Medical University, Szczecin, Poland
| | - Stefan Oswald
- Department of Clinical Pharmacology, Center of Drug Absorption and Transport, University Medicine Greifswald, Greifswald, Germany
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Lv X, Zhang JB, Hou J, Dou TY, Ge GB, Hu WZ, Yang L. Chemical Probes for Human UDP-Glucuronosyltransferases: A Comprehensive Review. Biotechnol J 2018; 14:e1800002. [PMID: 30192065 DOI: 10.1002/biot.201800002] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Revised: 08/19/2018] [Indexed: 01/11/2023]
Abstract
UGTs play crucial roles in the metabolism and detoxification of both endogenous and xenobiotic compounds. The key roles of UGTs in human health have garnered great interest in the design and development of specific probes for human UGTs. However, in contrast to other human enzymes, the probe substrates for human UGTs are rarely reported, owing to the highly overlapping substrate specificities of UGTs and the lack of the integrated crystal structures of UGTs. Over the past decades, many efforts are made to develop specific probe substrates for UGTs and use them in both basic research and drug discovery. This review focuses on recent progress in the development of probe substrates for UGTs and their biomedical applications. A long list of chemical probes for UGTs, including non-fluorescent and fluorescent probes along with their structural information and kinetic parameters, are prepared and analyzed. Additionally, challenges and future directions in this field are highlighted in the final section. All information and knowledge presented in this review provide practical tools/methods for measuring UGT activities in complex biological samples, which will be very helpful for rapid screening and characterization of UGT modulators, and for exploring the relevance of UGT enzymes to human diseases.
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Affiliation(s)
- Xia Lv
- Key Laboratory of Biotechnology and Bioresources Utilization, Ministry of Education, College of Life Science, Dalian Minzu University, Dalian, 116600, China.,Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | | | - Jie Hou
- Dalian Medical University, Dalian, 116044, China
| | - Tong-Yi Dou
- School of Life Science and Medicine, Dalian University of Technology, Panjin, 124221, China
| | - Guang-Bo Ge
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Wen-Zhong Hu
- Key Laboratory of Biotechnology and Bioresources Utilization, Ministry of Education, College of Life Science, Dalian Minzu University, Dalian, 116600, China
| | - Ling Yang
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
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Lapham K, Lin J, Novak J, Orozco C, Niosi M, Di L, Goosen TC, Ryu S, Riccardi K, Eng H, Cameron KO, Kalgutkar AS. 6-Chloro-5-[4-(1-Hydroxycyclobutyl)Phenyl]-1H-Indole-3-Carboxylic Acid is a Highly Selective Substrate for Glucuronidation by UGT1A1, Relative toβ-Estradiol. Drug Metab Dispos 2018; 46:1836-1846. [DOI: 10.1124/dmd.118.083709] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Accepted: 09/05/2018] [Indexed: 12/14/2022] Open
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Hanioka N, Ohkawara S, Isobe T, Ochi S, Tanaka-Kagawa T, Jinno H. Regioselective glucuronidation of daidzein in liver and intestinal microsomes of humans, monkeys, rats, and mice. Arch Toxicol 2018; 92:2809-2817. [DOI: 10.1007/s00204-018-2265-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Accepted: 07/12/2018] [Indexed: 12/22/2022]
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Liang Z, Xu C, Dong L, Fu Y, Wu Q, Zhao J, Ye L, Cai Z, Liu M, Xia B, Tang L, Liu Z. Involvement of UDP-glucuronosyltransferases in higenamine glucuronidation and the gender and species differences in liver. Biomed Pharmacother 2018. [PMID: 28633128 DOI: 10.1016/j.biopha.2017.06.044] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
OBJECTIVES Higenamine (HG), an active ingredient of Aconite root in Chinese herbal medicine, is mainly metabolized by UDP-glucuronosyltransferases (UGT). However, the systematic glucuronidation of HG in humans remains unclear. The purpose of this study was to investigate the glucuronidation of HG. METHODS 12 recombinant human UGT (rUGT) isozymes were used to characterize the HG glucuronidation. Liver microsomes from male and female mice, rats, guinea pigs, dogs, and humans were used to determine the species and gender differences using liquid chromatography-mass spectrometry. KEY FINDINGS One monoglucuronide was detected in reactions catalyzed by rUGT1A6, rUGT1A8, rUGT1A9, also human and dog liver microsomes. UGT1A9 is the most important glucuronosyltransferase that metabolizes HG. Because carvacrol, a specific inhibitor of UGT1A9, can significantly decrease the glucuronidation of HG in Human liver microsomes and UGT1A9. HG metabolism by UGT1A9 described in Michaelis-Menten kinetics (Km=15.4 mM,Vmax=2.2 nmol/mg/min) and glucuronidation in liver microsomes were species dependent. Gender did not affect the kinetic parameters among species except in rats. CONCLUSIONS UGT1A9 is a major isoenzyme responsible for the glucuronidation of HG in Human liver microsomes (HLMs). Dog may be an appropriate animal model to evaluate HG metabolism.
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Affiliation(s)
- Zhi Liang
- Biopharmaceutics, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Chang Xu
- Biopharmaceutics, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Lingna Dong
- Biopharmaceutics, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Yile Fu
- Biopharmaceutics, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Qiong Wu
- Biopharmaceutics, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Jie Zhao
- Biopharmaceutics, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Ling Ye
- Biopharmaceutics, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Zheng Cai
- Biopharmaceutics, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Menghua Liu
- Biopharmaceutics, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Bijun Xia
- Biopharmaceutics, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Lan Tang
- Biopharmaceutics, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China.
| | - Zhongqiu Liu
- Biopharmaceutics, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China; International Institute for Translational Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, China.
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Urinary Elimination of Bile Acid Glucuronides under Severe Cholestatic Situations: Contribution of Hepatic and Renal Glucuronidation Reactions. Can J Gastroenterol Hepatol 2018; 2018:8096314. [PMID: 29850459 PMCID: PMC5925157 DOI: 10.1155/2018/8096314] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Accepted: 02/15/2018] [Indexed: 12/23/2022] Open
Abstract
Biliary obstruction, a severe cholestatic complication, causes accumulation of toxic bile acids (BAs) in liver cells. Glucuronidation, catalyzed by UDP-glucuronosyltransferase (UGT) enzymes, detoxifies cholestatic BAs. Using liquid chromatography coupled to tandem mass spectrometry, 11 BA glucuronide (-G) species were quantified in prebiliary and postbiliary stenting serum and urine samples from 17 patients with biliary obstruction. Stenting caused glucuronide- and fluid-specific changes in BA-G levels and BA-G/BA metabolic ratios. In vitro glucuronidation assays with human liver and kidney microsomes revealed that even if renal enzymes generally displayed lower KM values, the two tissues shared similar glucuronidation capacities for BAs. By contrast, major differences between the two tissues were observed when four human BA-conjugating UGTs 1A3, 1A4, 2B4, and 2B7 were analyzed for mRNA and protein levels. Notably, the BA-24G producing UGT1A3 enzyme, abundant in the liver, was not detected in kidney microsomes. In conclusion, the circulating and urinary BA-G profiles are hugely impacted under severe cholestasis. The similar BA-glucuronidating abilities of hepatic and renal extracts suggest that both the liver and kidney may contribute to the urine BA-G pool.
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Qin Z, Li S, Yao Z, Hong X, Xu J, Lin P, Zhao G, Gonzalez FJ, Yao X. Metabolic profiling of corylin in vivo and in vitro. J Pharm Biomed Anal 2018; 155:157-168. [PMID: 29631076 DOI: 10.1016/j.jpba.2018.03.047] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2017] [Revised: 03/12/2018] [Accepted: 03/22/2018] [Indexed: 12/18/2022]
Abstract
Corylin, an phenolic compound from Psoralea corylifolia, has been reported with various pharmacological properties but has poor bioavailability due to massive metabolism. In this study, twelve metabolites of corylin mainly involving in oxidation, hydration, glucuronidation and sulfation were detected in mice. Furthermore, the oxidation and hydration of corylin (M4) in human liver microsomes (HLM) and human intestine microsomes (HIM) were both efficient with high CLint (intrinsic clearance) values of 24.29 and 42.85 μL/min/mg, respectively. CYP1A1, 1B1 and 2C19 contributed most for M4 with the CLint values of 26.63, 33.09 and 132.41 μL/min/mg, respectively. Besides, M4 was strongly correlated with phenacetin-N-deacetylation (r = 0.885, p = 0.0001) and tolbutamide-4-oxidation (r = 0.727, p = 0.001) in twelve individual HLMs, respectively. In addition, corylin was efficiently glucuronidated (M7) in HLM (125.33 μL/min/mg) and in HIM (108.74 μL/min/mg). UGT1A1 contributed the most for M7 with the CLint value of 122.32 μL/min/mg. Meanwhile, M7 was significantly correlated with β-estradiol-3-O-glucuronidation (r = 0.742, p = 0.006) in twelve individual HLMs. Moreover, the metabolism of corylin showed marked species differences. Taken together, corylin was subjected to massive first-pass metabolism in liver and intestine, while CYP1A1, 1B1, 2C19 and UGT1A1 were the main contributors. Finally, the proposed metabolic pathway of corylin involed CYP and UGT isoforms were summarized, which could help to understand the metabolic fate of corylin in vivo.
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Affiliation(s)
- Zifei Qin
- College of Pharmacy, Jinan University, Guangzhou 510632, PR China; Guangdong Provincial Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou 510632, PR China; Integrated Chinese and Western Medicine Postdoctoral research station, Jinan University, Guangzhou 510632, PR China
| | - Shishi Li
- College of Pharmacy, Jinan University, Guangzhou 510632, PR China; Guangdong Provincial Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou 510632, PR China
| | - Zhihong Yao
- College of Pharmacy, Jinan University, Guangzhou 510632, PR China; Guangdong Provincial Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou 510632, PR China.
| | - Xiaodan Hong
- College of Pharmacy, Jinan University, Guangzhou 510632, PR China; Guangdong Provincial Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou 510632, PR China
| | - Jinjin Xu
- College of Pharmacy, Jinan University, Guangzhou 510632, PR China; Guangdong Provincial Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou 510632, PR China
| | - Pei Lin
- College of Pharmacy, Jinan University, Guangzhou 510632, PR China; Guangdong Provincial Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou 510632, PR China
| | - Guoping Zhao
- Integrated Chinese and Western Medicine Postdoctoral research station, Jinan University, Guangzhou 510632, PR China
| | - Frank J Gonzalez
- Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Xinsheng Yao
- College of Pharmacy, Jinan University, Guangzhou 510632, PR China; Guangdong Provincial Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou 510632, PR China; Integrated Chinese and Western Medicine Postdoctoral research station, Jinan University, Guangzhou 510632, PR China.
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Gufford BT, Robarge JD, Eadon MT, Gao H, Lin H, Liu Y, Desta Z, Skaar TC. Rifampin modulation of xeno- and endobiotic conjugating enzyme mRNA expression and associated microRNAs in human hepatocytes. Pharmacol Res Perspect 2018; 6:e00386. [PMID: 29610665 PMCID: PMC5869567 DOI: 10.1002/prp2.386] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Accepted: 01/12/2018] [Indexed: 01/06/2023] Open
Abstract
Rifampin is a pleiotropic inducer of multiple drug metabolizing enzymes and transporters. This work utilized a global approach to evaluate rifampin effects on conjugating enzyme gene expression with relevance to human xeno‐ and endo‐biotic metabolism. Primary human hepatocytes from 7 subjects were treated with rifampin (10 μmol/L, 24 hours). Standard methods for RNA‐seq library construction, EZBead preparation, and NextGen sequencing were used to measure UDP‐glucuronosyl transferase UGT, sulfonyltransferase SULT, N acetyltransferase NAT, and glutathione‐S‐transferase GST mRNA expression compared to vehicle control (0.01% MeOH). Rifampin‐induced (>1.25‐fold) mRNA expression of 13 clinically important phase II drug metabolizing genes and repressed (>1.25‐fold) the expression of 3 genes (P < .05). Rifampin‐induced miRNA expression changes correlated with mRNA changes and miRNAs were identified that may modulate conjugating enzyme expression. NAT2 gene expression was most strongly repressed (1.3‐fold) by rifampin while UGT1A4 and UGT1A1 genes were most strongly induced (7.9‐ and 4.8‐fold, respectively). Physiologically based pharmacokinetic modeling (PBPK) was used to simulate the clinical consequences of rifampin induction of CYP3A4‐ and UGT1A4‐mediated midazolam metabolism. Simulations evaluating isolated UGT1A4 induction predicted increased midazolam N‐glucuronide exposure (~4‐fold) with minimal reductions in parent midazolam exposure (~10%). Simulations accounting for simultaneous induction of both CYP3A4 and UGT1A4 predicted a ~10‐fold decrease in parent midazolam exposure with only a ~2‐fold decrease in midazolam N‐glucuronide metabolite exposure. These data reveal differential effects of rifampin on the human conjugating enzyme transcriptome and potential associations with miRNAs that form the basis for future mechanistic studies to elucidate the interplay of conjugating enzyme regulatory elements.
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Affiliation(s)
- Brandon T Gufford
- Department of Medicine Division of Clinical Pharmacology Indiana University School of Medicine Indianapolis IN
| | - Jason D Robarge
- Department of Medicine Division of Clinical Pharmacology Indiana University School of Medicine Indianapolis IN
| | - Michael T Eadon
- Department of Medicine Division of Clinical Pharmacology Indiana University School of Medicine Indianapolis IN
| | - Hongyu Gao
- Department of Medical and Molecular Genetics Indiana University School of Medicine Indianapolis IN
| | - Hai Lin
- Department of Medical and Molecular Genetics Indiana University School of Medicine Indianapolis IN
| | - Yunlong Liu
- Department of Medical and Molecular Genetics Indiana University School of Medicine Indianapolis IN
| | - Zeruesenay Desta
- Department of Medicine Division of Clinical Pharmacology Indiana University School of Medicine Indianapolis IN
| | - Todd C Skaar
- Department of Medicine Division of Clinical Pharmacology Indiana University School of Medicine Indianapolis IN
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Lv X, Zhang JB, Wang XX, Hu WZ, Shi YS, Liu SW, Hao DC, Zhang WD, Ge GB, Hou J, Yang L. Amentoflavone is a potent broad-spectrum inhibitor of human UDP-glucuronosyltransferases. Chem Biol Interact 2018; 284:48-55. [DOI: 10.1016/j.cbi.2018.02.009] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Revised: 02/03/2018] [Accepted: 02/12/2018] [Indexed: 11/25/2022]
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50
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Li Y, Fan Y, Su H, Wang Q, Li GF, Hu Y, Jiang J, Tan B, Qiu F. Metabolic characteristics of Tanshinone I in human liver microsomes and S9 subcellular fractions. Xenobiotica 2018; 49:152-160. [PMID: 29357726 DOI: 10.1080/00498254.2018.1432087] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Tanshinone I (TSI) is a lipophilic diterpene in Salvia miltiorrhiza with versatile pharmacological activities. However, metabolic pathway of TSI in human is unknown. In this study, we determined major metabolites of TSI using a preparation of human liver microsomes (HLMs) by HPLC-UV and Q-Trap mass spectrometer. A total of 6 metabolites were detected, which indicated the presence of hydroxylation, reduction as well as glucuronidation. Selective chemical inhibition and purified cytochrome P450 (CYP450) isoform screening experiments revealed that CYP2A6 was primarily responsible for TSI Phase I metabolism. Part of generated hydroxylated TSI was glucuronidated via several glucuronosyltransferase (UGT) isoforms including UGT1A1, UGT1A3, UGT1A7, UGT1A9, as well as extrahepatic expressed isoforms UGT1A8 and UGT1A10. TSI could be reduced to a relatively unstable hydroquinone intermediate by NAD(P)H: quinone oxidoreductase 1 (NQO1), and then immediately conjugated with glucuronic acid by a panel of UGTs, especially UGT1A9, UGT1A1 and UGT1A8. Additionally, NQO1 could also reduce hydroxylated TSI to a hydroquinone intermediate, which was immediately glucuronidated by UGT1A1. The study demonstrated that hydroxylation, reduction as well as glucuronidation were the major pathways for TSI biotransformation, and six metabolites generated by CYPs, NQO1 and UGTs were found in HLMs and S9 subcellular fractions.
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Affiliation(s)
- Yue Li
- a Laboratory of Clinical Pharmacokinetics , Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine , Shanghai , China
| | - Yujuan Fan
- a Laboratory of Clinical Pharmacokinetics , Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine , Shanghai , China
| | - Huizong Su
- a Laboratory of Clinical Pharmacokinetics , Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine , Shanghai , China
| | - Qian Wang
- a Laboratory of Clinical Pharmacokinetics , Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine , Shanghai , China
| | - Guo-Fu Li
- b Center for Drug Clinical Research , Shanghai University of Traditional Chinese Medicine , Shanghai , China.,c Subei People's Hospital, Yangzhou University , Yangzhou , China
| | - Yiyang Hu
- a Laboratory of Clinical Pharmacokinetics , Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine , Shanghai , China
| | - Jian Jiang
- a Laboratory of Clinical Pharmacokinetics , Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine , Shanghai , China
| | - Bo Tan
- a Laboratory of Clinical Pharmacokinetics , Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine , Shanghai , China
| | - Furong Qiu
- a Laboratory of Clinical Pharmacokinetics , Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine , Shanghai , China
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