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Leung C, Liu J, Cunico K, Johnson K, Yan Z, Cai J. An Integrated Hepatocyte Stability Assay for Simultaneous Metabolic Stability Assessment and Metabolite Profiling. Drug Metab Dispos 2024; 52:377-389. [PMID: 38438166 DOI: 10.1124/dmd.123.001618] [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: 11/28/2023] [Revised: 02/28/2024] [Accepted: 02/29/2024] [Indexed: 03/06/2024] Open
Abstract
The determination of metabolic stability is critical for drug discovery programs, allowing for the optimization of chemical entities and compound prioritization. As such, it is common to perform high-volume in vitro metabolic stability experiments early in the lead optimization process to understand metabolic liabilities. Additional metabolite identification experiments are subsequently performed for a more comprehensive understanding of the metabolic clearance routes to aid medicinal chemists in the structural design of compounds. Collectively, these experiments require extensive sample preparation and a substantial amount of time and resources. To overcome the challenges, a high-throughput integrated assay for simultaneous hepatocyte metabolic stability assessment and metabolite profiling was developed. This assay platform consists of four parts: 1) an automated liquid-handling system for sample preparation and incubation, 2) a liquid chromatography and high-resolution mass spectrometry-based system to simultaneously monitor the parent compound depletion and metabolite formation, 3) an automated data analysis and report system for hepatic clearance assessment; and 4) streamlined autobatch processing for software-based metabolite profiling. The assay platform was evaluated using eight control compounds with various metabolic rates and biotransformation routes in hepatocytes across three species. Multiple sample preparation and data analysis steps were evaluated and validated for accuracy, repeatability, and metabolite coverage. The combined utility of an automated liquid-handling instrument, a high-resolution mass spectrometer, and multiple streamlined data processing software improves the process of these highly demanding screening assays and allows for simultaneous determination of metabolic stability and metabolite profiles for more efficient lead optimization during early drug discovery. SIGNIFICANCE STATEMENT: Metabolic stability assessment and metabolite profiling are pivotal in drug discovery to fully comprehend metabolic liabilities for chemical entity optimization and lead selection. Process of these assays can be repetitive and resource demanding. Here, we developed an integrated hepatocyte stability assay that combines automation, high-resolution mass spectrometers, and batch-processing software to improve and combine the workflow of these assays. The integrated approach allows simultaneous metabolic stability assessment and metabolite profiling, significantly accelerating screening and lead optimization in a resource-effective manner.
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Affiliation(s)
- Christian Leung
- Department of Drug Metabolism and Pharmacokinetics, Genentech, Inc., South San Francisco, California
| | - Joyce Liu
- Department of Drug Metabolism and Pharmacokinetics, Genentech, Inc., South San Francisco, California
| | - Katherine Cunico
- Department of Drug Metabolism and Pharmacokinetics, Genentech, Inc., South San Francisco, California
| | - Kevin Johnson
- Department of Drug Metabolism and Pharmacokinetics, Genentech, Inc., South San Francisco, California
| | - Zhengyin Yan
- Department of Drug Metabolism and Pharmacokinetics, Genentech, Inc., South San Francisco, California
| | - Jingwei Cai
- Department of Drug Metabolism and Pharmacokinetics, Genentech, Inc., South San Francisco, California
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Izat N, Bolleddula J, Abbasi A, Cheruzel L, Jones RS, Moss D, Ortega-Muro F, Parmentier Y, Peterkin VC, Tian DD, Venkatakrishnan K, Zientek MA, Barber J, Houston JB, Galetin A, Scotcher D. Challenges and Opportunities for In Vitro-In Vivo Extrapolation of Aldehyde Oxidase-Mediated Clearance: Toward a Roadmap for Quantitative Translation. Drug Metab Dispos 2023; 51:1591-1606. [PMID: 37751998 DOI: 10.1124/dmd.123.001436] [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: 06/22/2023] [Revised: 08/25/2023] [Accepted: 08/28/2023] [Indexed: 09/28/2023] Open
Abstract
Underestimation of aldehyde oxidase (AO)-mediated clearance by current in vitro assays leads to uncertainty in human dose projections, thereby reducing the likelihood of success in drug development. In the present study we first evaluated the current drug development practices for AO substrates. Next, the overall predictive performance of in vitro-in vivo extrapolation of unbound hepatic intrinsic clearance (CLint,u) and unbound hepatic intrinsic clearance by AO (CLint,u,AO) was assessed using a comprehensive literature database of in vitro (human cytosol/S9/hepatocytes) and in vivo (intravenous/oral) data collated for 22 AO substrates (total of 100 datapoints from multiple studies). Correction for unbound fraction in the incubation was done by experimental data or in silico predictions. The fraction metabolized by AO (fmAO) determined via in vitro/in vivo approaches was found to be highly variable. The geometric mean fold errors (gmfe) for scaled CLint,u (mL/min/kg) were 10.4 for human hepatocytes, 5.6 for human liver cytosols, and 5.0 for human liver S9, respectively. Application of these gmfe's as empirical scaling factors improved predictions (45%-57% within twofold of observed) compared with no correction (11%-27% within twofold), with the scaling factors qualified by leave-one-out cross-validation. A road map for quantitative translation was then proposed following a critical evaluation on the in vitro and clinical methodology to estimate in vivo fmAO In conclusion, the study provides the most robust system-specific empirical scaling factors to date as a pragmatic approach for the prediction of in vivo CLint,u,AO in the early stages of drug development. SIGNIFICANCE STATEMENT: Confidence remains low when predicting in vivo clearance of AO substrates using in vitro systems, leading to de-prioritization of AO substrates from the drug development pipeline to mitigate risk of unexpected and costly in vivo impact. The current study establishes a set of empirical scaling factors as a pragmatic tool to improve predictability of in vivo AO clearance. Developing clinical pharmacology strategies for AO substrates by utilizing mass balance/clinical drug-drug interaction data will help build confidence in fmAO.
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Affiliation(s)
- Nihan Izat
- Centre for Applied Pharmacokinetic Research, The University of Manchester, Manchester, UK (N.I., Ji.B., J.B.H., A.G., D.S.); EMD Serono Research & Development Institute, Inc., Billerica, Massachusetts (Ja.B., K.V.); Amgen Inc., South San Francisco, California (A.A.); Genentech, Inc., South San Francisco, California (L.C., R.S.J.); Janssen Pharmaceutical Companies of Johnson & Johnson, Beerse, Belgium (D.M.); GSK R&D, Tres Cantos, Madrid, Spain (F.O.M.); Technologie Servier, Orléans, France (Y.P.); AbbVie Inc., North Chicago, Illinois (V.C.P.); Eli Lilly and Company, Indianapolis, Indiana (D.-D.T.); and Takeda Pharmaceuticals Limited, San Diego, California (M.A.Z.)
| | - Jayaprakasam Bolleddula
- Centre for Applied Pharmacokinetic Research, The University of Manchester, Manchester, UK (N.I., Ji.B., J.B.H., A.G., D.S.); EMD Serono Research & Development Institute, Inc., Billerica, Massachusetts (Ja.B., K.V.); Amgen Inc., South San Francisco, California (A.A.); Genentech, Inc., South San Francisco, California (L.C., R.S.J.); Janssen Pharmaceutical Companies of Johnson & Johnson, Beerse, Belgium (D.M.); GSK R&D, Tres Cantos, Madrid, Spain (F.O.M.); Technologie Servier, Orléans, France (Y.P.); AbbVie Inc., North Chicago, Illinois (V.C.P.); Eli Lilly and Company, Indianapolis, Indiana (D.-D.T.); and Takeda Pharmaceuticals Limited, San Diego, California (M.A.Z.)
| | - Armina Abbasi
- Centre for Applied Pharmacokinetic Research, The University of Manchester, Manchester, UK (N.I., Ji.B., J.B.H., A.G., D.S.); EMD Serono Research & Development Institute, Inc., Billerica, Massachusetts (Ja.B., K.V.); Amgen Inc., South San Francisco, California (A.A.); Genentech, Inc., South San Francisco, California (L.C., R.S.J.); Janssen Pharmaceutical Companies of Johnson & Johnson, Beerse, Belgium (D.M.); GSK R&D, Tres Cantos, Madrid, Spain (F.O.M.); Technologie Servier, Orléans, France (Y.P.); AbbVie Inc., North Chicago, Illinois (V.C.P.); Eli Lilly and Company, Indianapolis, Indiana (D.-D.T.); and Takeda Pharmaceuticals Limited, San Diego, California (M.A.Z.)
| | - Lionel Cheruzel
- Centre for Applied Pharmacokinetic Research, The University of Manchester, Manchester, UK (N.I., Ji.B., J.B.H., A.G., D.S.); EMD Serono Research & Development Institute, Inc., Billerica, Massachusetts (Ja.B., K.V.); Amgen Inc., South San Francisco, California (A.A.); Genentech, Inc., South San Francisco, California (L.C., R.S.J.); Janssen Pharmaceutical Companies of Johnson & Johnson, Beerse, Belgium (D.M.); GSK R&D, Tres Cantos, Madrid, Spain (F.O.M.); Technologie Servier, Orléans, France (Y.P.); AbbVie Inc., North Chicago, Illinois (V.C.P.); Eli Lilly and Company, Indianapolis, Indiana (D.-D.T.); and Takeda Pharmaceuticals Limited, San Diego, California (M.A.Z.)
| | - Robert S Jones
- Centre for Applied Pharmacokinetic Research, The University of Manchester, Manchester, UK (N.I., Ji.B., J.B.H., A.G., D.S.); EMD Serono Research & Development Institute, Inc., Billerica, Massachusetts (Ja.B., K.V.); Amgen Inc., South San Francisco, California (A.A.); Genentech, Inc., South San Francisco, California (L.C., R.S.J.); Janssen Pharmaceutical Companies of Johnson & Johnson, Beerse, Belgium (D.M.); GSK R&D, Tres Cantos, Madrid, Spain (F.O.M.); Technologie Servier, Orléans, France (Y.P.); AbbVie Inc., North Chicago, Illinois (V.C.P.); Eli Lilly and Company, Indianapolis, Indiana (D.-D.T.); and Takeda Pharmaceuticals Limited, San Diego, California (M.A.Z.)
| | - Darren Moss
- Centre for Applied Pharmacokinetic Research, The University of Manchester, Manchester, UK (N.I., Ji.B., J.B.H., A.G., D.S.); EMD Serono Research & Development Institute, Inc., Billerica, Massachusetts (Ja.B., K.V.); Amgen Inc., South San Francisco, California (A.A.); Genentech, Inc., South San Francisco, California (L.C., R.S.J.); Janssen Pharmaceutical Companies of Johnson & Johnson, Beerse, Belgium (D.M.); GSK R&D, Tres Cantos, Madrid, Spain (F.O.M.); Technologie Servier, Orléans, France (Y.P.); AbbVie Inc., North Chicago, Illinois (V.C.P.); Eli Lilly and Company, Indianapolis, Indiana (D.-D.T.); and Takeda Pharmaceuticals Limited, San Diego, California (M.A.Z.)
| | - Fatima Ortega-Muro
- Centre for Applied Pharmacokinetic Research, The University of Manchester, Manchester, UK (N.I., Ji.B., J.B.H., A.G., D.S.); EMD Serono Research & Development Institute, Inc., Billerica, Massachusetts (Ja.B., K.V.); Amgen Inc., South San Francisco, California (A.A.); Genentech, Inc., South San Francisco, California (L.C., R.S.J.); Janssen Pharmaceutical Companies of Johnson & Johnson, Beerse, Belgium (D.M.); GSK R&D, Tres Cantos, Madrid, Spain (F.O.M.); Technologie Servier, Orléans, France (Y.P.); AbbVie Inc., North Chicago, Illinois (V.C.P.); Eli Lilly and Company, Indianapolis, Indiana (D.-D.T.); and Takeda Pharmaceuticals Limited, San Diego, California (M.A.Z.)
| | - Yannick Parmentier
- Centre for Applied Pharmacokinetic Research, The University of Manchester, Manchester, UK (N.I., Ji.B., J.B.H., A.G., D.S.); EMD Serono Research & Development Institute, Inc., Billerica, Massachusetts (Ja.B., K.V.); Amgen Inc., South San Francisco, California (A.A.); Genentech, Inc., South San Francisco, California (L.C., R.S.J.); Janssen Pharmaceutical Companies of Johnson & Johnson, Beerse, Belgium (D.M.); GSK R&D, Tres Cantos, Madrid, Spain (F.O.M.); Technologie Servier, Orléans, France (Y.P.); AbbVie Inc., North Chicago, Illinois (V.C.P.); Eli Lilly and Company, Indianapolis, Indiana (D.-D.T.); and Takeda Pharmaceuticals Limited, San Diego, California (M.A.Z.)
| | - Vincent C Peterkin
- Centre for Applied Pharmacokinetic Research, The University of Manchester, Manchester, UK (N.I., Ji.B., J.B.H., A.G., D.S.); EMD Serono Research & Development Institute, Inc., Billerica, Massachusetts (Ja.B., K.V.); Amgen Inc., South San Francisco, California (A.A.); Genentech, Inc., South San Francisco, California (L.C., R.S.J.); Janssen Pharmaceutical Companies of Johnson & Johnson, Beerse, Belgium (D.M.); GSK R&D, Tres Cantos, Madrid, Spain (F.O.M.); Technologie Servier, Orléans, France (Y.P.); AbbVie Inc., North Chicago, Illinois (V.C.P.); Eli Lilly and Company, Indianapolis, Indiana (D.-D.T.); and Takeda Pharmaceuticals Limited, San Diego, California (M.A.Z.)
| | - Dan-Dan Tian
- Centre for Applied Pharmacokinetic Research, The University of Manchester, Manchester, UK (N.I., Ji.B., J.B.H., A.G., D.S.); EMD Serono Research & Development Institute, Inc., Billerica, Massachusetts (Ja.B., K.V.); Amgen Inc., South San Francisco, California (A.A.); Genentech, Inc., South San Francisco, California (L.C., R.S.J.); Janssen Pharmaceutical Companies of Johnson & Johnson, Beerse, Belgium (D.M.); GSK R&D, Tres Cantos, Madrid, Spain (F.O.M.); Technologie Servier, Orléans, France (Y.P.); AbbVie Inc., North Chicago, Illinois (V.C.P.); Eli Lilly and Company, Indianapolis, Indiana (D.-D.T.); and Takeda Pharmaceuticals Limited, San Diego, California (M.A.Z.)
| | - Karthik Venkatakrishnan
- Centre for Applied Pharmacokinetic Research, The University of Manchester, Manchester, UK (N.I., Ji.B., J.B.H., A.G., D.S.); EMD Serono Research & Development Institute, Inc., Billerica, Massachusetts (Ja.B., K.V.); Amgen Inc., South San Francisco, California (A.A.); Genentech, Inc., South San Francisco, California (L.C., R.S.J.); Janssen Pharmaceutical Companies of Johnson & Johnson, Beerse, Belgium (D.M.); GSK R&D, Tres Cantos, Madrid, Spain (F.O.M.); Technologie Servier, Orléans, France (Y.P.); AbbVie Inc., North Chicago, Illinois (V.C.P.); Eli Lilly and Company, Indianapolis, Indiana (D.-D.T.); and Takeda Pharmaceuticals Limited, San Diego, California (M.A.Z.)
| | - Michael A Zientek
- Centre for Applied Pharmacokinetic Research, The University of Manchester, Manchester, UK (N.I., Ji.B., J.B.H., A.G., D.S.); EMD Serono Research & Development Institute, Inc., Billerica, Massachusetts (Ja.B., K.V.); Amgen Inc., South San Francisco, California (A.A.); Genentech, Inc., South San Francisco, California (L.C., R.S.J.); Janssen Pharmaceutical Companies of Johnson & Johnson, Beerse, Belgium (D.M.); GSK R&D, Tres Cantos, Madrid, Spain (F.O.M.); Technologie Servier, Orléans, France (Y.P.); AbbVie Inc., North Chicago, Illinois (V.C.P.); Eli Lilly and Company, Indianapolis, Indiana (D.-D.T.); and Takeda Pharmaceuticals Limited, San Diego, California (M.A.Z.)
| | - Jill Barber
- Centre for Applied Pharmacokinetic Research, The University of Manchester, Manchester, UK (N.I., Ji.B., J.B.H., A.G., D.S.); EMD Serono Research & Development Institute, Inc., Billerica, Massachusetts (Ja.B., K.V.); Amgen Inc., South San Francisco, California (A.A.); Genentech, Inc., South San Francisco, California (L.C., R.S.J.); Janssen Pharmaceutical Companies of Johnson & Johnson, Beerse, Belgium (D.M.); GSK R&D, Tres Cantos, Madrid, Spain (F.O.M.); Technologie Servier, Orléans, France (Y.P.); AbbVie Inc., North Chicago, Illinois (V.C.P.); Eli Lilly and Company, Indianapolis, Indiana (D.-D.T.); and Takeda Pharmaceuticals Limited, San Diego, California (M.A.Z.)
| | - J Brian Houston
- Centre for Applied Pharmacokinetic Research, The University of Manchester, Manchester, UK (N.I., Ji.B., J.B.H., A.G., D.S.); EMD Serono Research & Development Institute, Inc., Billerica, Massachusetts (Ja.B., K.V.); Amgen Inc., South San Francisco, California (A.A.); Genentech, Inc., South San Francisco, California (L.C., R.S.J.); Janssen Pharmaceutical Companies of Johnson & Johnson, Beerse, Belgium (D.M.); GSK R&D, Tres Cantos, Madrid, Spain (F.O.M.); Technologie Servier, Orléans, France (Y.P.); AbbVie Inc., North Chicago, Illinois (V.C.P.); Eli Lilly and Company, Indianapolis, Indiana (D.-D.T.); and Takeda Pharmaceuticals Limited, San Diego, California (M.A.Z.)
| | - Aleksandra Galetin
- Centre for Applied Pharmacokinetic Research, The University of Manchester, Manchester, UK (N.I., Ji.B., J.B.H., A.G., D.S.); EMD Serono Research & Development Institute, Inc., Billerica, Massachusetts (Ja.B., K.V.); Amgen Inc., South San Francisco, California (A.A.); Genentech, Inc., South San Francisco, California (L.C., R.S.J.); Janssen Pharmaceutical Companies of Johnson & Johnson, Beerse, Belgium (D.M.); GSK R&D, Tres Cantos, Madrid, Spain (F.O.M.); Technologie Servier, Orléans, France (Y.P.); AbbVie Inc., North Chicago, Illinois (V.C.P.); Eli Lilly and Company, Indianapolis, Indiana (D.-D.T.); and Takeda Pharmaceuticals Limited, San Diego, California (M.A.Z.)
| | - Daniel Scotcher
- Centre for Applied Pharmacokinetic Research, The University of Manchester, Manchester, UK (N.I., Ji.B., J.B.H., A.G., D.S.); EMD Serono Research & Development Institute, Inc., Billerica, Massachusetts (Ja.B., K.V.); Amgen Inc., South San Francisco, California (A.A.); Genentech, Inc., South San Francisco, California (L.C., R.S.J.); Janssen Pharmaceutical Companies of Johnson & Johnson, Beerse, Belgium (D.M.); GSK R&D, Tres Cantos, Madrid, Spain (F.O.M.); Technologie Servier, Orléans, France (Y.P.); AbbVie Inc., North Chicago, Illinois (V.C.P.); Eli Lilly and Company, Indianapolis, Indiana (D.-D.T.); and Takeda Pharmaceuticals Limited, San Diego, California (M.A.Z.)
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Patel M, Riede J, Bednarczyk D, Poller B, Deshmukh SV. Simplifying the Extended Clearance Concept Classification System (EC3S) to Guide Clearance Prediction in Drug Discovery. Pharm Res 2023; 40:937-949. [PMID: 36859748 DOI: 10.1007/s11095-023-03482-4] [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] [Received: 10/18/2022] [Accepted: 02/10/2023] [Indexed: 03/03/2023]
Abstract
PURPOSE The Extended Clearance Concept Classification System was established as a development-stage tool to provide a framework for identifying fundamental mechanism(s) governing drug disposition in humans. In the present study, the applicability of the EC3S in drug discovery has been investigated. In its current format, the EC3S relies on low-throughput hepatocyte uptake data, which are not frequently generated in a discovery setting. METHODS A relationship between hepatocyte uptake clearance and MDCK permeability was first established along with intrinsic clearance from human liver microsomes. The performance of this approach was examined by categorizing 64 drugs into EC3S classes and comparing the predicted major elimination pathway(s) to that observed in humans. As an extension of the work, the ability of the simplified EC3S to predict human systemic clearance based on intrinsic clearance generated using in-vitro metabolic systems was evaluated. RESULTS The assessment enabled the use of MDCK permeability and unscaled unbound intrinsic clearance to generate cut-off criteria to categorize compounds into four EC3S classes: Class 12ab, 2cd, 34ab, and 34cd, with major elimination mechanism(s) assigned to each class. The predictivity analysis suggested that systemic clearance could generally be predicted within threefold for EC3S class 12ab and 34ab compounds. For classes 2cd and 34cd, systemic clearance was poorly predicted using in-vitro systems explored in this study. CONCLUSION Collectively, our simplified classification approach is expected to facilitate the identification of mechanism(s) involved in drug elimination, faster resolution of in-vitro to in-vivo disconnects, and better design of mechanistic pharmacokinetic studies in drug discovery.
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Affiliation(s)
- Mitesh Patel
- Pharmacokinetic Sciences, Novartis Institutes for BioMedical Research, Inc., 250 Massachusetts Avenue 2A/242, Cambridge, MA, 02139, USA
| | - Julia Riede
- Pharmacokinetic Sciences, Novartis Institutes for BioMedical Research, Basel, Switzerland
| | - Dallas Bednarczyk
- Pharmacokinetic Sciences, Novartis Institutes for BioMedical Research, Inc., 250 Massachusetts Avenue 2A/242, Cambridge, MA, 02139, USA
| | - Birk Poller
- Pharmacokinetic Sciences, Novartis Institutes for BioMedical Research, Basel, Switzerland
| | - Sujal V Deshmukh
- Pharmacokinetic Sciences, Novartis Institutes for BioMedical Research, Inc., 250 Massachusetts Avenue 2A/242, Cambridge, MA, 02139, USA.
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Gajula SNR, Nathani TN, Patil RM, Talari S, Sonti R. Aldehyde oxidase mediated drug metabolism: an underpredicted obstacle in drug discovery and development. Drug Metab Rev 2022; 54:427-448. [PMID: 36369949 DOI: 10.1080/03602532.2022.2144879] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Aldehyde oxidase (AO) has garnered curiosity as a non-CYP metabolizing enzyme in drug development due to unexpected consequences such as toxic metabolite generation and high metabolic clearance resulting in the clinical failure of new drugs. Therefore, poor AO mediated clearance prediction in preclinical nonhuman species remains a significant obstacle in developing novel drugs. Various isoforms of AO, such as AOX1, AOX3, AOX3L1, and AOX4 exist across species, and different AO activity among humans influences the AO mediated drug metabolism. Therefore, carefully considering the unique challenges is essential in developing successful AO substrate drugs. The in vitro to in vivo extrapolation underpredicts AO mediated drug clearance due to the lack of reliable representative animal models, substrate-specific activity, and the discrepancy between absolute concentration and activity. An in vitro tool to extrapolate in vivo clearance using a yard-stick approach is provided to address the underprediction of AO mediated drug clearance. This approach uses a range of well-known AO drug substrates as calibrators for qualitative scaling new drugs into low, medium, or high clearance category drugs. So far, in vivo investigations on chimeric mice with humanized livers (humanized mice) have predicted AO mediated metabolism to the best extent. This review addresses the critical aspects of the drug discovery stage for AO metabolism studies, challenges faced in drug development, approaches to tackle AO mediated drug clearance's underprediction, and strategies to decrease the AO metabolism of drugs.
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Affiliation(s)
- Siva Nageswara Rao Gajula
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research (NIPER)-Hyderabad, Balanagar, Telangana, India
| | - Tanaaz Navin Nathani
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research (NIPER)-Hyderabad, Balanagar, Telangana, India
| | - Rashmi Madhukar Patil
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research (NIPER)-Hyderabad, Balanagar, Telangana, India
| | - Sasikala Talari
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research (NIPER)-Hyderabad, Balanagar, Telangana, India
| | - Rajesh Sonti
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research (NIPER)-Hyderabad, Balanagar, Telangana, India
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Toselli F, Golding M, Nicolaï J, Gillent E, Chanteux H. Drug clearance by aldehyde oxidase: can we avoid clinical failure? Xenobiotica 2022; 52:890-903. [PMID: 36170034 DOI: 10.1080/00498254.2022.2129519] [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: 01/19/2023]
Abstract
Despite increased awareness of aldehyde oxidase (AO) as a major drug-metabolising enzyme, predicting the pharmacokinetics of its substrates remains challenging. Several drug candidates have been terminated due to high clearance, which were subsequently discovered to be AO substrates. Even retrospective extrapolation of human clearance, from models more sensitive to AO activity, often resulted in underprediction.The questions of the current work thus were: Is there an acceptable degree of in vitro AO metabolism that does not result in high in vivo human clearance? And, if so, how can this be predicted?We built an in vitro/in vivo correlation using known AO substrates, combining multiple in vitro parameters to calculate the blood metabolic clearance mediated by AO (CLbAO). This value was compared with observed blood clearance (CLb-obs), establishing cut-off CLbAO values, to discriminate between low and high CLb-obs. The model was validated using additional literature compounds, and CLb-obs was predicted in the correct category.This simple, categorical, semi-quantitative yet multi-factorial model is readily applicable in drug discovery. Further, it is valuable for high-clearance compounds, as it predicts the CLb group, rather than an exact CLb value, for the substrates of this poorly-characterised enzyme.
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Affiliation(s)
| | | | - Johan Nicolaï
- Development Science, UCB Biopharma, Braine-l'Alleud, Belgium
| | - Eric Gillent
- Development Science, UCB Biopharma, Braine-l'Alleud, Belgium
| | - Hugues Chanteux
- Development Science, UCB Biopharma, Braine-l'Alleud, Belgium
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6
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Rendić SP, Crouch RD, Guengerich FP. Roles of selected non-P450 human oxidoreductase enzymes in protective and toxic effects of chemicals: review and compilation of reactions. Arch Toxicol 2022; 96:2145-2246. [PMID: 35648190 PMCID: PMC9159052 DOI: 10.1007/s00204-022-03304-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 04/26/2022] [Indexed: 12/17/2022]
Abstract
This is an overview of the metabolic reactions of drugs, natural products, physiological compounds, and other (general) chemicals catalyzed by flavin monooxygenase (FMO), monoamine oxidase (MAO), NAD(P)H quinone oxidoreductase (NQO), and molybdenum hydroxylase enzymes (aldehyde oxidase (AOX) and xanthine oxidoreductase (XOR)), including roles as substrates, inducers, and inhibitors of the enzymes. The metabolism and bioactivation of selected examples of each group (i.e., drugs, “general chemicals,” natural products, and physiological compounds) are discussed. We identified a higher fraction of bioactivation reactions for FMO enzymes compared to other enzymes, predominately involving drugs and general chemicals. With MAO enzymes, physiological compounds predominate as substrates, and some products lead to unwanted side effects or illness. AOX and XOR enzymes are molybdenum hydroxylases that catalyze the oxidation of various heteroaromatic rings and aldehydes and the reduction of a number of different functional groups. While neither of these two enzymes contributes substantially to the metabolism of currently marketed drugs, AOX has become a frequently encountered route of metabolism among drug discovery programs in the past 10–15 years. XOR has even less of a role in the metabolism of clinical drugs and preclinical drug candidates than AOX, likely due to narrower substrate specificity.
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Affiliation(s)
| | - Rachel D Crouch
- College of Pharmacy and Health Sciences, Lipscomb University, Nashville, TN, 37204, USA
| | - F Peter Guengerich
- Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, TN, 37232-0146, USA
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7
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Uno Y, Uehara S, Yamazaki H. Drug-oxidizing and conjugating non-cytochrome P450 (non-P450) enzymes in cynomolgus monkeys and common marmosets as preclinical models for humans. Biochem Pharmacol 2021; 197:114887. [PMID: 34968483 DOI: 10.1016/j.bcp.2021.114887] [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] [Received: 10/14/2021] [Revised: 12/06/2021] [Accepted: 12/06/2021] [Indexed: 02/06/2023]
Abstract
Many drug oxidations and conjugations are mediated by a variety of cytochromes P450 (P450) and non-P450 enzymes in humans and non-human primates. These non-P450 enzymes include aldehyde oxidases (AOX), carboxylesterases (CES), flavin-containing monooxygenases (FMO), glutathione S-transferases (GST), arylamine N-acetyltransferases (NAT),sulfotransferases (SULT), and uridine 5'-diphospho-glucuronosyltransferases (UGT) and their substrates include both endobiotics and xenobiotics. Cynomolgus macaques (Macaca fascicularis, an Old-World monkey) are widely used in preclinical studies because of their genetic and physiological similarities to humans. However, many reports have indicated the usefulness of common marmosets (Callithrix jacchus, a New World monkey) as an alternative non-human primate model. Although knowledge of the drug-metabolizing properties of non-P450 enzymes in non-human primates is relatively limited, new research has started to provide an insight into the molecular characteristics of these enzymes in cynomolgus macaques and common marmosets. This mini-review provides collective information on the isoforms of non-P450 enzymes AOX, CES, FMO, GST, NAT, SULT, and UGT and their enzymatic profiles in cynomolgus macaques and common marmosets. In general, these non-P450 cynomolgus macaque and marmoset enzymes have high sequence identities and similar substrate recognitions to their human counterparts. However, these enzymes also exhibit some limited differences in function between species, just as P450 enzymes do, possibly due to small structural differences in amino acid residues. The findings summarized here provide a foundation for understanding the molecular mechanisms of polymorphic non-P450 enzymes and should contribute to the successful application of non-human primates as model animals for humans.
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Affiliation(s)
- Yasuhiro Uno
- Joint Faculty of Veterinary Medicine, Kagoshima University, Kagoshima-city, Kagoshima 890-8580, Japan
| | - Shotaro Uehara
- Showa Pharmaceutical University, Machida, Tokyo 194-8543, Japan
| | - Hiroshi Yamazaki
- Showa Pharmaceutical University, Machida, Tokyo 194-8543, Japan.
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8
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Cai J, Yan Z. Re-Examining the Impact of Minimal Scans in Liquid Chromatography-Mass Spectrometry Analysis. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2021; 32:2110-2122. [PMID: 34190546 DOI: 10.1021/jasms.1c00073] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Liquid chromatography-mass spectrometry (LC-MS) is one of the most widely used analytical tools. High analysis volumes and sample complexity often demand more informative LC-MS acquisition schemes to improve efficiency and throughput without compromising data quality, and such a demand has been always hindered by the prerequisite that a minimum of 13-20 MS scans (data points) across an analyte peak are required for accurate quantitation. The current study systematically re-evaluated and compared the impact of different scan numbers on quantitation analysis using both triple quadrupoles mass spectrometry (TQMS) and high-resolution mass spectrometry (HRMS). Contrary to the 13-20 minimal scan prerequisite, the data obtained from a group of eight commercial drugs in the absence and presence of biological matrices suggest that 6 scans per analyte peak are sufficient to achieve highly comparable quantitation results compared to that obtained using 10 and 20 scans, respectively. The fewer minimal scan prerequisite is presumably attributed to an improved LC system and advanced column technology, better MS detector, and more intelligent peak detection and integration algorithms leading to a more symmetric peak shape and smaller peak standard deviation. As a result, more informative acquisition schemes can be broadly set up for higher throughput and more data-rich LC-MS/MS analysis as demonstrated in a hepatocyte clearance assay in which fewer MS scans executed on HRMS led to broader metabolite coverage without compromising data quality in hepatic clearance assessment. The demonstrated acquisition scheme would substantially increase the throughput, robustness, and richness of the nonregulatory analysis, which can be broadly applied in diverse fields including pharmaceutical, environmental, forensic, toxicological, and biotechnological.
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Affiliation(s)
- Jingwei Cai
- Department of Drug Metabolism and Pharmacokinetics, Genentech, Inc., South San Francisco, California 94080, United States
| | - Zhengyin Yan
- Department of Drug Metabolism and Pharmacokinetics, Genentech, Inc., South San Francisco, California 94080, United States
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9
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Kozminski KD, Selimkhanov J, Heyward S, Zientek MA. Contribution of Extrahepatic Aldehyde Oxidase Activity to Human Clearance. Drug Metab Dispos 2021; 49:743-749. [PMID: 34162687 DOI: 10.1124/dmd.120.000313] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Accepted: 06/10/2021] [Indexed: 11/22/2022] Open
Abstract
Aldehyde oxidase (AOX) is a soluble, cytosolic enzyme that metabolizes various N-heterocyclic compounds and organic aldehydes. It has wide tissue distribution with highest levels found in liver, kidney, and lung. Human clearance projections of AOX substrates by in vitro assessments in isolated liver fractions (cytosol, S9) and even hepatocytes have been largely underpredictive of clinical outcomes. Various hypotheses have been suggested as to why this is the case. One explanation is that extrahepatic AOX expression contributes measurably to AOX clearance and is at least partially responsible for the often observed underpredictions. Although AOX expression has been confirmed in several extrahepatic tissues, activities therein and potential contribution to overall human clearance have not been thoroughly studied. In this work, the AOX enzyme activity using the S9 fractions of select extrahepatic human tissues (kidney, lung, vasculature, and intestine) were measured using carbazeran as a probe substrate. Measured activities were scaled to a whole-body clearance using best-available parameters and compared with liver S9 fractions. Here, the combined scaled AOX clearance obtained from the kidney, lung, vasculature, and intestine is very low and amounted to <1% of liver. This work suggests that AOX metabolism from extrahepatic sources plays little role in the underprediction of activity in human. One of the notable outcomes of this work has been the first direct demonstration of AOX activity in human vasculature. SIGNIFICANCE STATEMENT: This work demonstrates aldehyde oxidase (AOX) activity is measurable in a variety of extrahepatic human tissues, including vasculature, yet activities and potential contributions to human clearance are relatively low and insignificant when compared with the liver. Additionally, the modeling of the tissue-specific in vitro kinetic data suggests that AOX may be influenced by the tissue it resides in and thus show different affinity, activity, and modified activity over time.
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Affiliation(s)
- Kirk D Kozminski
- Takeda Pharmaceuticals Limited, San Diego, California (K.D.K., J.S., M.A.Z.); and BioIVT, Baltimore, Maryland (S.H.)
| | - Jangir Selimkhanov
- Takeda Pharmaceuticals Limited, San Diego, California (K.D.K., J.S., M.A.Z.); and BioIVT, Baltimore, Maryland (S.H.)
| | - Scott Heyward
- Takeda Pharmaceuticals Limited, San Diego, California (K.D.K., J.S., M.A.Z.); and BioIVT, Baltimore, Maryland (S.H.)
| | - Michael A Zientek
- Takeda Pharmaceuticals Limited, San Diego, California (K.D.K., J.S., M.A.Z.); and BioIVT, Baltimore, Maryland (S.H.)
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10
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Abstract
The heterocyclic compounds are the building blocks for the synthesis of the different biologically
active compounds in the organic chemistry. Heterocyclic compounds have versatile synthetic
applicability and biological activity. Pyrazole carboxylic acid derivatives are significant scaffold
structures in heterocyclic compounds due to biologic activities such as antimicrobial, anticancer, inflammatory,
antidepressant, antifungal anti-tubercular and antiviral, etc. The aim of this mini-review
is an overview synthesis of pyrazole carboxylic acid derivatives and their biologic applications. The
summarized literature survey presents biological activities of pyrazole carboxylic acid derivatives
and their various synthetic methods in detail. This mini-review can be a guide to many scientists in
medicinal chemistry.
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Affiliation(s)
- Adnan Cetin
- Department of Sciences, Faculty of Education, University of Mus Alparslan, Mus, Turkey
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11
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Zhang Y, Yang Y, Shen G, Mao X, Jiao M, Lin Y. Identification and Characterization of Aldehyde Oxidase 5 in the Pheromone Gland of the Silkworm (Lepidoptera: Bombycidae). JOURNAL OF INSECT SCIENCE (ONLINE) 2020; 20:6029056. [PMID: 33295983 PMCID: PMC7724976 DOI: 10.1093/jisesa/ieaa132] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Indexed: 06/12/2023]
Abstract
Aldehyde oxidases (AOXs) are a subfamily of cytosolic molybdo-flavoenzymes that play critical roles in the detoxification and degradation of chemicals. Active AOXs, such as AOX1 and AOX2, have been identified and functionally analyzed in insect antennae but are rarely reported in other tissues. This is the first study to isolate and characterize the cDNA that encodes aldehyde oxidase 5 (BmAOX5) in the pheromone gland (PG) of the silkworm, Bombyx mori. The size of BmAOX5 cDNA is 3,741 nucleotides and includes an open reading frame, which encodes a protein of 1,246 amino acid residues. The theoretical molecular weight and isoelectric point of BmAOX5 are approximately 138 kDa and 5.58, respectively. BmAOX5 shares a similar primary structure with BmAOX1 and BmAOX2, containing two [2Fe-2S] redox centers, a FAD-binding domain, and a molybdenum cofactor (MoCo)-binding domain. RT-PCR revealed BmAOX5 to be particularly highly expressed in the PG (including ovipositor) of the female silkworm moth, and the expression was further confirmed by in situ hybridization, AOX activity staining, and anti-BmAOX5 western blotting. Further, BmAOX5 was shown to metabolize aromatic aldehydes, such as benzaldehyde, salicylaldehyde, and vanillic aldehyde, and fatty aldehydes, such as heptaldehyde and propionaldehyde. The maximum reaction rate (Vmax) of benzaldehyde as substrate was 21 mU and Km was 1.745 mmol/liter. These results suggested that BmAOX5 in the PG could metabolize aldehydes in the cytoplasm for detoxification or participate in the degradation of aldehyde pheromone substances and odorant compounds to identify mating partners and locate suitable spawning sites.
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Affiliation(s)
- Yandi Zhang
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
- Biological Science Research Center, Southwest University, Chongqing, China
| | - Yu Yang
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
- Biological Science Research Center, Southwest University, Chongqing, China
| | - Guanwang Shen
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
- Biological Science Research Center, Southwest University, Chongqing, China
- Chongqing Key Laboratory of Sericulture Science, Chongqing, China
- Chongqing Engineering and Technology Research Center for Novel Silk Materials, Chongqing, China
| | - Xueqin Mao
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
- Biological Science Research Center, Southwest University, Chongqing, China
| | - Mengyao Jiao
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
- Biological Science Research Center, Southwest University, Chongqing, China
| | - Ying Lin
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
- Biological Science Research Center, Southwest University, Chongqing, China
- Chongqing Key Laboratory of Sericulture Science, Chongqing, China
- Chongqing Engineering and Technology Research Center for Novel Silk Materials, Chongqing, China
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12
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Abbasi A, Joswig-Jones CA, Jones JP. Site-Directed Mutagenesis at the Molybdenum Pterin Cofactor Site of the Human Aldehyde Oxidase: Interrogating the Kinetic Differences Between Human and Cynomolgus Monkey. Drug Metab Dispos 2020; 48:1364-1371. [PMID: 33020066 DOI: 10.1124/dmd.120.000187] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 09/25/2020] [Indexed: 11/22/2022] Open
Abstract
The estimation of the drug clearance by aldehyde oxidase (AO) has been complicated because of this enzyme's atypical kinetics and species and substrate specificity. Since human AO (hAO) and cynomolgus monkey AO (mAO) have a 95.1% sequence identity, cynomolgus monkeys may be the best species for estimating AO clearance in humans. Here, O6-benzylguanine (O6BG) and dantrolene were used under anaerobic conditions, as oxidative and reductive substrates of AO, respectively, to compare and contrast the kinetics of these two species through numerical modeling. Whereas dantrolene reduction followed the same linear kinetics in both species, the oxidation rate of O6BG was also linear in mAO and did not follow the already established biphasic kinetics of hAO. In an attempt to determine why hAO and mAO are kinetically distinct, we have altered the hAO V811 and F885 amino acids at the oxidation site adjacent to the molybdenum pterin cofactor to the corresponding alanine and leucine in mAO, respectively. Although some shift to a more monkey-like kinetics was observed for the V811A mutant, five more mutations around the AO cofactors still need to be investigated for this purpose. In comparing the oxidative and reductive rates of metabolism under anaerobic conditions, we have come to the conclusion that despite having similar rates of reduction (4-fold difference), the oxidation rate in mAO is more than 50-fold slower than hAO. This finding implies that the presence of nonlinearity in AO kinetics is dependent upon the degree of imbalance between the rates of oxidation and reduction in this enzyme. SIGNIFICANCE STATEMENT: Although they have as much as 95.1% sequence identity, human and cynomolgus monkey aldehyde oxidase are kinetically distinct. Therefore, monkeys may not be good estimators of drug clearance in humans.
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Affiliation(s)
- Armina Abbasi
- Department of Chemistry, Washington State University, Pullman, Washington
| | | | - Jeffrey P Jones
- Department of Chemistry, Washington State University, Pullman, Washington
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13
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De Sousa Mendes M, L. Orton A, Humphries HE, Jones B, Gardner I, Neuhoff S, Pilla Reddy V. A Laboratory-Specific Scaling Factor to Predict the In Vivo Human Clearance of Aldehyde Oxidase Substrates. Drug Metab Dispos 2020; 48:1231-1238. [DOI: 10.1124/dmd.120.000082] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 07/22/2020] [Indexed: 11/22/2022] Open
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14
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Uehara S, Yoneda N, Higuchi Y, Yamazaki H, Suemizu H. Human Aldehyde Oxidase 1–Mediated Carbazeran Oxidation in Chimeric TK-NOG Mice Transplanted with Human Hepatocytes. Drug Metab Dispos 2020; 48:580-586. [DOI: 10.1124/dmd.120.091090] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Accepted: 04/10/2020] [Indexed: 01/20/2023] Open
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15
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Manevski N, King L, Pitt WR, Lecomte F, Toselli F. Metabolism by Aldehyde Oxidase: Drug Design and Complementary Approaches to Challenges in Drug Discovery. J Med Chem 2019; 62:10955-10994. [PMID: 31385704 DOI: 10.1021/acs.jmedchem.9b00875] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Aldehyde oxidase (AO) catalyzes oxidations of azaheterocycles and aldehydes, amide hydrolysis, and diverse reductions. AO substrates are rare among marketed drugs, and many candidates failed due to poor pharmacokinetics, interspecies differences, and adverse effects. As most issues arise from complex and poorly understood AO biology, an effective solution is to stop or decrease AO metabolism. This perspective focuses on rational drug design approaches to modulate AO-mediated metabolism in drug discovery. AO biological aspects are also covered, as they are complementary to chemical design and important when selecting the experimental system for risk assessment. The authors' recommendation is an early consideration of AO-mediated metabolism supported by computational and in vitro experimental methods but not an automatic avoidance of AO structural flags, many of which are versatile and valuable building blocks. Preferably, consideration of AO-mediated metabolism should be part of the multiparametric drug optimization process, with the goal to improve overall drug-like properties.
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Affiliation(s)
- Nenad Manevski
- UCB Celltech , 208 Bath Road , Slough SL13WE , United Kingdom
| | - Lloyd King
- UCB Celltech , 208 Bath Road , Slough SL13WE , United Kingdom
| | - William R Pitt
- UCB Celltech , 208 Bath Road , Slough SL13WE , United Kingdom
| | - Fabien Lecomte
- UCB Celltech , 208 Bath Road , Slough SL13WE , United Kingdom
| | - Francesca Toselli
- UCB BioPharma , Chemin du Foriest 1 , 1420 Braine-l'Alleud , Belgium
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16
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Cheshmazar N, Dastmalchi S, Terao M, Garattini E, Hamzeh-Mivehroud M. Aldehyde oxidase at the crossroad of metabolism and preclinical screening. Drug Metab Rev 2019; 51:428-452. [DOI: 10.1080/03602532.2019.1667379] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Narges Cheshmazar
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Medicinal Chemistry, School of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Siavoush Dastmalchi
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Medicinal Chemistry, School of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mineko Terao
- Laboratory of Molecular Biology, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milano, Italy
| | - Enrico Garattini
- Laboratory of Molecular Biology, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milano, Italy
| | - Maryam Hamzeh-Mivehroud
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Medicinal Chemistry, School of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
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17
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Dalvie D, Di L. Aldehyde oxidase and its role as a drug metabolizing enzyme. Pharmacol Ther 2019; 201:137-180. [PMID: 31128989 DOI: 10.1016/j.pharmthera.2019.05.011] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Accepted: 03/27/2019] [Indexed: 11/29/2022]
Abstract
Aldehyde oxidase (AO) is a cytosolic enzyme that belongs to the family of structurally related molybdoflavoproteins like xanthine oxidase (XO). The enzyme is characterized by broad substrate specificity and marked species differences. It catalyzes the oxidation of aromatic and aliphatic aldehydes and various heteroaromatic rings as well as reduction of several functional groups. The references to AO and its role in metabolism date back to the 1950s, but the importance of this enzyme in the metabolism of drugs has emerged in the past fifteen years. Several reviews on the role of AO in drug metabolism have been published in the past decade indicative of the growing interest in the enzyme and its influence in drug metabolism. Here, we present a comprehensive monograph of AO as a drug metabolizing enzyme with emphasis on marketed drugs as well as other xenobiotics, as substrates and inhibitors. Although the number of drugs that are primarily metabolized by AO are few, the impact of AO on drug development has been extensive. We also discuss the effect of AO on the systemic exposure and clearance these clinical candidates. The review provides a comprehensive analysis of drug discovery compounds involving AO with the focus on developmental candidates that were reported in the past five years with regards to pharmacokinetics and toxicity. While there is only one known report of AO-mediated clinically relevant drug-drug interaction (DDI), a detailed description of inhibitors and inducers of AO known to date has been presented here and the potential risks associated with DDI. The increasing recognition of the importance of AO has led to significant progress in predicting the site of AO-mediated metabolism using computational methods. Additionally, marked species difference in expression of AO makes it is difficult to predict human clearance with high confidence. The progress made towards developing in vivo, in vitro and in silico approaches for predicting AO metabolism and estimating human clearance of compounds that are metabolized by AO have also been discussed.
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Affiliation(s)
- Deepak Dalvie
- Drug Metabolism and Pharmacokinetics, Celgene Corporation, 10300, Campus Point Drive, San Diego, CA 92121, USA.
| | - Li Di
- Pharmacokinetics, Dynamics and Metabolism, Pfizer Worldwide Research and Development, Groton, CT 06340, UK
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18
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Affiliation(s)
- Christine Beedham
- Honorary Senior Lecturer, Faculty of Life Sciences, School of Pharmacy and Medical Sciences, University of Bradford, Bradford, UK
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19
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Adusumalli S, Jamwal R, Obach RS, Ryder TF, Leggio L, Akhlaghi F. Role of Molybdenum-Containing Enzymes in the Biotransformation of the Novel Ghrelin Receptor Inverse Agonist PF-5190457: A Reverse Translational Bed-to-Bench Approach. Drug Metab Dispos 2019; 47:874-882. [PMID: 31182423 DOI: 10.1124/dmd.119.087015] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2019] [Accepted: 05/28/2019] [Indexed: 12/29/2022] Open
Abstract
(R)-2-(2-methylimidazo[2,1-b]thiazol-6-yl)-1-(2-(5-(6-methylpyrimidin-4-yl)-2,3-dihydro-1H-inden-1-yl)-2,7-diazaspiro[3.5]nonan-7-yl)ethan-1-one (PF-5190457) was identified as a potent and selective inverse agonist of the ghrelin receptor [growth hormone secretagogue receptor 1a (GHS-R1a)]. The present translational bed-to-bench work characterizes the biotransformation of this compound in vivo and then further explores in vitro metabolism in fractions of human liver and primary hepatocytes. Following oral administration of PF-5190457 in a phase 1b clinical study, hydroxyl metabolites of the compound were observed, including one that had not been observed in previously performed human liver microsomal incubations. PF-6870961 was biosynthesized using liver cytosol, and the site of hydroxylation was shown to be on the pyrimidine using nuclear magnetic resonance spectroscopy. The aldehyde oxidase (AO) inhibitor raloxifene and the xanthine oxidase inhibitor febuxostat inhibited the formation of PF-6870961 in human liver cytosol, suggesting both enzymes were involved in the metabolism of the drug. However, greater inhibition was observed with raloxifene, indicating AO is a dominant enzyme in the biotransformation. The intrinsic clearance of the drug in human liver cytosol was estimated to be 0.002 ml/min per milligram protein. This study provides important novel information at three levels: 1) it provides additional new information on the recently developed novel compound PF-5190457, the first GHS-R1a blocker that has moved to development in humans; 2) it provides an example of a reverse translational approach where a discovery in humans was brought back, validated, and further investigated at the bench level; and 3) it demonstrates the importance of considering the molybdenum-containing oxidases during the development of new drug entities. SIGNIFICANCE STATEMENT: PF-5190457 is a novel ghrelin receptor inverse agonist that is currently undergoing clinical development for treatment of alcohol use disorder. PF-6870961, a major hydroxyl metabolite of the compound, was observed in human plasma, but was absent in human liver microsomal incubations. PF-6870961 was biosynthesized using liver cytosol, and the site of hydroxylation on the pyrimidine ring was characterized. Inhibitors of aldehyde oxidase and xanthine oxidase inhibited the formation of PF-6870961 in human liver cytosol, suggesting both enzymes were involved in the metabolism of the drug. This information is important for patient selection in subsequent clinical studies.
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Affiliation(s)
- Sravani Adusumalli
- Clinical Pharmacokinetics Research Laboratory, Department of Biomedical and Pharmaceutical Sciences, University of Rhode Island, Kingston, Rhode Island (S.A., R.J., F.A.); Department of Pharmacokinetics, Dynamics, and Metabolism, Pfizer, Inc., Groton, Connecticut (R.S.O., T.F.R.); Section on Clinical Psychoneuroendocrinology and Neuropsychopharmacology, National Institute on Alcohol Abuse and Alcoholism Division of Intramural Clinical and Biological Research and National Institute on Drug Abuse Intramural Research Program, Bethesda, Maryland (L.L.); Medication Development Program, National Institute on Drug Abuse Intramural Research Program, Baltimore, Maryland (L.L.); and Center for Alcohol and Addiction Studies, Department of Behavioral and Social Sciences, Brown University, Providence, Rhode Island (L.L.)
| | - Rohitash Jamwal
- Clinical Pharmacokinetics Research Laboratory, Department of Biomedical and Pharmaceutical Sciences, University of Rhode Island, Kingston, Rhode Island (S.A., R.J., F.A.); Department of Pharmacokinetics, Dynamics, and Metabolism, Pfizer, Inc., Groton, Connecticut (R.S.O., T.F.R.); Section on Clinical Psychoneuroendocrinology and Neuropsychopharmacology, National Institute on Alcohol Abuse and Alcoholism Division of Intramural Clinical and Biological Research and National Institute on Drug Abuse Intramural Research Program, Bethesda, Maryland (L.L.); Medication Development Program, National Institute on Drug Abuse Intramural Research Program, Baltimore, Maryland (L.L.); and Center for Alcohol and Addiction Studies, Department of Behavioral and Social Sciences, Brown University, Providence, Rhode Island (L.L.)
| | - R Scott Obach
- Clinical Pharmacokinetics Research Laboratory, Department of Biomedical and Pharmaceutical Sciences, University of Rhode Island, Kingston, Rhode Island (S.A., R.J., F.A.); Department of Pharmacokinetics, Dynamics, and Metabolism, Pfizer, Inc., Groton, Connecticut (R.S.O., T.F.R.); Section on Clinical Psychoneuroendocrinology and Neuropsychopharmacology, National Institute on Alcohol Abuse and Alcoholism Division of Intramural Clinical and Biological Research and National Institute on Drug Abuse Intramural Research Program, Bethesda, Maryland (L.L.); Medication Development Program, National Institute on Drug Abuse Intramural Research Program, Baltimore, Maryland (L.L.); and Center for Alcohol and Addiction Studies, Department of Behavioral and Social Sciences, Brown University, Providence, Rhode Island (L.L.)
| | - Tim F Ryder
- Clinical Pharmacokinetics Research Laboratory, Department of Biomedical and Pharmaceutical Sciences, University of Rhode Island, Kingston, Rhode Island (S.A., R.J., F.A.); Department of Pharmacokinetics, Dynamics, and Metabolism, Pfizer, Inc., Groton, Connecticut (R.S.O., T.F.R.); Section on Clinical Psychoneuroendocrinology and Neuropsychopharmacology, National Institute on Alcohol Abuse and Alcoholism Division of Intramural Clinical and Biological Research and National Institute on Drug Abuse Intramural Research Program, Bethesda, Maryland (L.L.); Medication Development Program, National Institute on Drug Abuse Intramural Research Program, Baltimore, Maryland (L.L.); and Center for Alcohol and Addiction Studies, Department of Behavioral and Social Sciences, Brown University, Providence, Rhode Island (L.L.)
| | - Lorenzo Leggio
- Clinical Pharmacokinetics Research Laboratory, Department of Biomedical and Pharmaceutical Sciences, University of Rhode Island, Kingston, Rhode Island (S.A., R.J., F.A.); Department of Pharmacokinetics, Dynamics, and Metabolism, Pfizer, Inc., Groton, Connecticut (R.S.O., T.F.R.); Section on Clinical Psychoneuroendocrinology and Neuropsychopharmacology, National Institute on Alcohol Abuse and Alcoholism Division of Intramural Clinical and Biological Research and National Institute on Drug Abuse Intramural Research Program, Bethesda, Maryland (L.L.); Medication Development Program, National Institute on Drug Abuse Intramural Research Program, Baltimore, Maryland (L.L.); and Center for Alcohol and Addiction Studies, Department of Behavioral and Social Sciences, Brown University, Providence, Rhode Island (L.L.)
| | - Fatemeh Akhlaghi
- Clinical Pharmacokinetics Research Laboratory, Department of Biomedical and Pharmaceutical Sciences, University of Rhode Island, Kingston, Rhode Island (S.A., R.J., F.A.); Department of Pharmacokinetics, Dynamics, and Metabolism, Pfizer, Inc., Groton, Connecticut (R.S.O., T.F.R.); Section on Clinical Psychoneuroendocrinology and Neuropsychopharmacology, National Institute on Alcohol Abuse and Alcoholism Division of Intramural Clinical and Biological Research and National Institute on Drug Abuse Intramural Research Program, Bethesda, Maryland (L.L.); Medication Development Program, National Institute on Drug Abuse Intramural Research Program, Baltimore, Maryland (L.L.); and Center for Alcohol and Addiction Studies, Department of Behavioral and Social Sciences, Brown University, Providence, Rhode Island (L.L.)
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20
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Abbasi A, Paragas EM, Joswig-Jones CA, Rodgers JT, Jones JP. Time Course of Aldehyde Oxidase and Why It Is Nonlinear. Drug Metab Dispos 2019; 47:473-483. [PMID: 30787100 DOI: 10.1124/dmd.118.085787] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Accepted: 02/15/2019] [Indexed: 12/11/2022] Open
Abstract
Many promising drug candidates metabolized by aldehyde oxidase (AOX) fail during clinical trial owing to underestimation of their clearance. AOX is species-specific, which makes traditional allometric studies a poor choice for estimating human clearance. Other studies have suggested using half-life calculated by measuring substrate depletion to measure clearance. In this study, we proposed using numerical fitting to enzymatic pathways other than Michaelis-Menten (MM) to avoid missing the initial high turnover rate of product formation. Here, product formation over a 240-minute time course of six AOX substrates-O6-benzylguanine, N-(2-dimethylamino)ethyl)acridine-4-carboxamide, zaleplon, phthalazine, BIBX1382 [N8-(3-Chloro-4-fluorophenyl)-N2-(1-methyl-4-piperidinyl)-pyrimido[5,4-d]pyrimidine-2,8-diamine dihydrochloride], and zoniporide-have been provided to illustrate enzyme deactivation over time to help better understand why MM kinetics sometimes leads to underestimation of rate constants. Based on the data provided in this article, the total velocity for substrates becomes slower than the initial velocity by 3.1-, 6.5-, 2.9-, 32.2-, 2.7-, and 0.2-fold, respectively, in human expressed purified enzyme, whereas the K m remains constant. Also, our studies on the role of reactive oxygen species (ROS), such as superoxide and hydrogen peroxide, show that ROS did not significantly alter the change in enzyme activity over time. Providing a new electron acceptor, 5-nitroquinoline, did, however, alter the change in rate over time for mumerous compounds. The data also illustrate the difficulties in using substrate disappearance to estimate intrinsic clearance.
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Affiliation(s)
- Armina Abbasi
- Department of Chemistry, Washington State University, Pullman, Washington
| | - Erickson M Paragas
- Department of Chemistry, Washington State University, Pullman, Washington
| | | | - John T Rodgers
- Department of Chemistry, Washington State University, Pullman, Washington
| | - Jeffrey P Jones
- Department of Chemistry, Washington State University, Pullman, Washington
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21
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Katyayan KK, Hui YH. An evaluation of metabolite profiling of six drugs using dried blood spot. Xenobiotica 2019; 49:1458-1469. [DOI: 10.1080/00498254.2019.1572938] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
| | - Yu-Hua Hui
- Drug Disposition, Eli Lilly and Company, Indianapolis, IN, USA
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22
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Mota C, Coelho C, Leimkühler S, Garattini E, Terao M, Santos-Silva T, Romão MJ. Critical overview on the structure and metabolism of human aldehyde oxidase and its role in pharmacokinetics. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2018.04.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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23
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Oesch F, Fabian E, Landsiedel R. Xenobiotica-metabolizing enzymes in the skin of rat, mouse, pig, guinea pig, man, and in human skin models. Arch Toxicol 2018; 92:2411-2456. [PMID: 29916051 PMCID: PMC6063329 DOI: 10.1007/s00204-018-2232-x] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Accepted: 05/29/2018] [Indexed: 12/26/2022]
Abstract
Studies on the metabolic fate of medical drugs, skin care products, cosmetics and other chemicals intentionally or accidently applied to the human skin have become increasingly important in order to ascertain pharmacological effectiveness and to avoid toxicities. The use of freshly excised human skin for experimental investigations meets with ethical and practical limitations. Hence information on xenobiotic-metabolizing enzymes (XME) in the experimental systems available for pertinent studies compared with native human skin has become crucial. This review collects available information of which—taken with great caution because of the still very limited data—the most salient points are: in the skin of all animal species and skin-derived in vitro systems considered in this review cytochrome P450 (CYP)-dependent monooxygenase activities (largely responsible for initiating xenobiotica metabolism in the organ which provides most of the xenobiotica metabolism of the mammalian organism, the liver) are very low to undetectable. Quite likely other oxidative enzymes [e.g. flavin monooxygenase, COX (cooxidation by prostaglandin synthase)] will turn out to be much more important for the oxidative xenobiotic metabolism in the skin. Moreover, conjugating enzyme activities such as glutathione transferases and glucuronosyltransferases are much higher than the oxidative CYP activities. Since these conjugating enzymes are predominantly detoxifying, the skin appears to be predominantly protected against CYP-generated reactive metabolites. The following recommendations for the use of experimental animal species or human skin in vitro models may tentatively be derived from the information available to date: for dermal absorption and for skin irritation esterase activity is of special importance which in pig skin, some human cell lines and reconstructed skin models appears reasonably close to native human skin. With respect to genotoxicity and sensitization reactive-metabolite-reducing XME in primary human keratinocytes and several reconstructed human skin models appear reasonably close to human skin. For a more detailed delineation and discussion of the severe limitations see the Conclusions section in the end of this review.
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Affiliation(s)
- F Oesch
- Institute of Toxicology, Johannes Gutenberg-University, Obere Zahlbacherstr. 67, 55131, Mainz, Germany
| | - E Fabian
- Experimental Toxicology and Ecology, GV/TB, Z470, BASF SE, Carl-Bosch-Str. 38, 67056, Ludwigshafen, Germany
| | - Robert Landsiedel
- Experimental Toxicology and Ecology, GV/TB, Z470, BASF SE, Carl-Bosch-Str. 38, 67056, Ludwigshafen, Germany.
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24
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Dick RA. Refinement of In Vitro Methods for Identification of Aldehyde Oxidase Substrates Reveals Metabolites of Kinase Inhibitors. Drug Metab Dispos 2018; 46:846-859. [DOI: 10.1124/dmd.118.080960] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Accepted: 03/30/2018] [Indexed: 01/08/2023] Open
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Hosogi J, Ohashi R, Maeda H, Fujita K, Ushiki J, Kuwabara T, Yamamoto Y, Imamura T. An iminium ion metabolite hampers the production of the pharmacologically active metabolite of a multikinase inhibitor KW-2449 in primates: irreversible inhibition of aldehyde oxidase and covalent binding with endogenous proteins. Biopharm Drug Dispos 2018; 39:164-174. [DOI: 10.1002/bdd.2123] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2017] [Revised: 02/01/2018] [Accepted: 02/06/2018] [Indexed: 02/05/2023]
Affiliation(s)
- Jun Hosogi
- Translational Research Unit; Research and Development Division, Kyowa Hakko Kirin Co., Ltd; 1188 Shimotogari, Nagaizumi-cho, Sunto-gun Shizuoka 411-8731 Japan
| | - Rui Ohashi
- Translational Research Unit; Research and Development Division, Kyowa Hakko Kirin Co., Ltd; 1188 Shimotogari, Nagaizumi-cho, Sunto-gun Shizuoka 411-8731 Japan
| | - Hiroshi Maeda
- Translational Research Unit; Research and Development Division, Kyowa Hakko Kirin Co., Ltd; 1188 Shimotogari, Nagaizumi-cho, Sunto-gun Shizuoka 411-8731 Japan
| | - Kazuhiro Fujita
- Translational Research Unit; Research and Development Division, Kyowa Hakko Kirin Co., Ltd; 1188 Shimotogari, Nagaizumi-cho, Sunto-gun Shizuoka 411-8731 Japan
| | - Junko Ushiki
- Translational Research Unit; Research and Development Division, Kyowa Hakko Kirin Co., Ltd; 1188 Shimotogari, Nagaizumi-cho, Sunto-gun Shizuoka 411-8731 Japan
| | - Takashi Kuwabara
- Translational Research Unit; Research and Development Division, Kyowa Hakko Kirin Co., Ltd; 1188 Shimotogari, Nagaizumi-cho, Sunto-gun Shizuoka 411-8731 Japan
| | - Yorihiro Yamamoto
- School of Bioscience and Biotechnology; Tokyo University of Technology; 1404-1 Katakura-cho, Hachioji Tokyo 192-0983 Japan
| | - Toru Imamura
- School of Bioscience and Biotechnology; Tokyo University of Technology; 1404-1 Katakura-cho, Hachioji Tokyo 192-0983 Japan
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26
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Paragas E, Humphreys SC, Min J, Joswig-Jones CA, Leimkühler S, Jones JP. ecoAO: A Simple System for the Study of Human Aldehyde Oxidases Role in Drug Metabolism. ACS OMEGA 2017; 2:4820-4827. [PMID: 28884164 PMCID: PMC5579547 DOI: 10.1021/acsomega.7b01054] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Accepted: 08/09/2017] [Indexed: 06/07/2023]
Abstract
Although aldehyde oxidase (AO) is an important hepatic drug-metabolizing enzyme, it remains understudied and is consequently often overlooked in preclinical studies, an oversight that has resulted in the failure of multiple clinical trials. AO's preclusion to investigation stems from the following: (1) difficulties synthesizing metabolic standards due to the chemospecificity and regiospecificity of the enzyme and (2) significant inherent variability across existing in vitro systems including liver cytosol, S9 fractions, and primary hepatocytes, which lack specificity and generate discordant expression and activity profiles. Here, we describe a practical bacterial biotransformation system, ecoAO, addressing both issues simultaneously. ecoAO is a cell paste of MoCo-producing Escherichia coli strain TP1017 expressing human AO. It exhibits specific activity toward known substrates, zoniporide, 4-trans-(N,N-dimethylamino)cinnamaldehyde, O6-benzylguanine, and zaleplon; it also has utility as a biocatalyst, yielding milligram quantities of synthetically challenging metabolite standards such as 2-oxo-zoniporide. Moreover, ecoAO enables routine determination of kcat and V/K, which are essential parameters for accurate in vivo clearance predictions. Furthermore, ecoAO has potential as a preclinical in vitro screening tool for AO activity, as demonstrated by its metabolism of 3-aminoquinoline, a previously uncharacterized substrate. ecoAO promises to provide easy access to metabolites with the potential to improve pharmacokinetic clearance predictions and guide drug development.
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Affiliation(s)
- Erickson
M. Paragas
- Department
of Chemistry, Washington State University, 99164-4630 Pullman, Washington, United States
| | - Sara C. Humphreys
- Department
of Chemistry, Washington State University, 99164-4630 Pullman, Washington, United States
| | - Joshua Min
- Department
of Chemistry, Washington State University, 99164-4630 Pullman, Washington, United States
| | - Carolyn A. Joswig-Jones
- Department
of Chemistry, Washington State University, 99164-4630 Pullman, Washington, United States
| | - Silke Leimkühler
- Department
of Molecular Enzymology, Institute of Biochemistry and Biology, University of Potsdam, Karl-Liebknecht-Straße 24-25, 14476 Potsdam, Germany
| | - Jeffrey P. Jones
- Department
of Chemistry, Washington State University, 99164-4630 Pullman, Washington, United States
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27
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Tu Y, Zhang Z, Wang T, Ke J, Zhao J. A Regioselective Approach to Trisubstituted Pyrazoles via Palladium-Catalyzed Oxidative Sonogashira-Carbonylation of Arylhydrazines. Org Lett 2017. [DOI: 10.1021/acs.orglett.7b01447] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yongliang Tu
- Key Laboratory of Chemical
Biology of Jiangxi Province, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, 330022, Jiangxi, P. R. China
| | - Zhenming Zhang
- Key Laboratory of Chemical
Biology of Jiangxi Province, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, 330022, Jiangxi, P. R. China
| | - Tao Wang
- Key Laboratory of Chemical
Biology of Jiangxi Province, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, 330022, Jiangxi, P. R. China
| | - Jiamei Ke
- Key Laboratory of Chemical
Biology of Jiangxi Province, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, 330022, Jiangxi, P. R. China
| | - Junfeng Zhao
- Key Laboratory of Chemical
Biology of Jiangxi Province, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, 330022, Jiangxi, P. R. China
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28
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Uehara S, Uno Y, Okamoto E, Inoue T, Sasaki E, Yamazaki H. Molecular Cloning and Characterization of Marmoset Aldehyde Oxidase. Drug Metab Dispos 2017; 45:883-886. [DOI: 10.1124/dmd.117.076042] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Accepted: 05/03/2017] [Indexed: 11/22/2022] Open
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29
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Crouch RD, Hutzler JM, Daniels JS. A novel in vitro allometric scaling methodology for aldehyde oxidase substrates to enable selection of appropriate species for traditional allometry. Xenobiotica 2017; 48:219-231. [PMID: 28281401 DOI: 10.1080/00498254.2017.1296208] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
1. Failure to predict human pharmacokinetics of aldehyde oxidase (AO) substrates using traditional allometry has been attributed to species differences in AO metabolism. 2. To identify appropriate species for predicting human in vivo clearance by single-species scaling (SSS) or multispecies allometry (MA), we scaled in vitro intrinsic clearance (CLint) of five AO substrates obtained from hepatic S9 of mouse, rat, guinea pig, monkey and minipig to human in vitro CLint. 3. When predicting human in vitro CLint, average absolute fold-error was ≤2.0 by SSS with monkey, minipig and guinea pig (rat/mouse >3.0) and was <3.0 by most MA species combinations (including rat/mouse combinations). 4. Interspecies variables, including fraction metabolized by AO (Fm,AO) and hepatic extraction ratios (E) were estimated in vitro. SSS prediction fold-errors correlated with the animal:human ratio of E (r2 = 0.6488), but not Fm,AO (r2 = 0.0051). 5. Using plasma clearance (CLp) from the literature, SSS with monkey was superior to rat or mouse at predicting human CLp of BIBX1382 and zoniporide, consistent with in vitro SSS assessments. 6. Evaluation of in vitro allometry, Fm,AO and E may prove useful to guide selection of suitable species for traditional allometry and prediction of human pharmacokinetics of AO substrates.
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Affiliation(s)
- Rachel D Crouch
- a Department of Pharmacology , Vanderbilt University School of Medicine , Nashville , TN , USA and
| | - J Matthew Hutzler
- b Q2 Solutions, Bioanalytical and ADME Labs , Indianapolis , IN , USA
| | - J Scott Daniels
- a Department of Pharmacology , Vanderbilt University School of Medicine , Nashville , TN , USA and
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30
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Miyamoto M, Iwasaki S, Chisaki I, Nakagawa S, Amano N, Hirabayashi H. Comparison of predictability for human pharmacokinetics parameters among monkeys, rats, and chimeric mice with humanised liver. Xenobiotica 2017; 47:1052-1063. [DOI: 10.1080/00498254.2016.1265160] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Maki Miyamoto
- Drug Metabolism and Pharmacokinetics Research Laboratories, Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Japan
| | - Shinji Iwasaki
- Drug Metabolism and Pharmacokinetics Research Laboratories, Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Japan
| | - Ikumi Chisaki
- Drug Metabolism and Pharmacokinetics Research Laboratories, Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Japan
| | - Sayaka Nakagawa
- Drug Metabolism and Pharmacokinetics Research Laboratories, Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Japan
| | - Nobuyuki Amano
- Drug Metabolism and Pharmacokinetics Research Laboratories, Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Japan
| | - Hideki Hirabayashi
- Drug Metabolism and Pharmacokinetics Research Laboratories, Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Japan
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31
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Argikar UA, Potter PM, Hutzler JM, Marathe PH. Challenges and Opportunities with Non-CYP Enzymes Aldehyde Oxidase, Carboxylesterase, and UDP-Glucuronosyltransferase: Focus on Reaction Phenotyping and Prediction of Human Clearance. AAPS JOURNAL 2016; 18:1391-1405. [PMID: 27495117 DOI: 10.1208/s12248-016-9962-6] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2016] [Accepted: 07/13/2016] [Indexed: 01/28/2023]
Abstract
Over the years, significant progress has been made in reducing metabolic instability due to cytochrome P450-mediated oxidation. High-throughput metabolic stability screening has enabled the advancement of compounds with little to no oxidative metabolism. Furthermore, high lipophilicity and low aqueous solubility of presently pursued chemotypes reduces the probability of renal excretion. As such, these low microsomal turnover compounds are often substrates for non-CYP-mediated metabolism. UGTs, esterases, and aldehyde oxidase are major enzymes involved in catalyzing such metabolism. Hepatocytes provide an excellent tool to identify such pathways including elucidation of major metabolites. To predict human PK parameters for P450-mediated metabolism, in vitro-in vivo extrapolation using hepatic microsomes, hepatocytes, and intestinal microsomes has been actively investigated. However, such methods have not been sufficiently evaluated for non-P450 enzymes. In addition to the involvement of the liver, extrahepatic enzymes (intestine, kidney, lung) are also likely to contribute to these pathways. While there has been considerable progress in predicting metabolic pathways and clearance primarily mediated by the liver, progress in characterizing extrahepatic metabolism and prediction of clearance has been slow. Well-characterized in vitro systems or in vivo animal models to assess drug-drug interaction potential and intersubject variability due to polymorphism are not available. Here we focus on the utility of appropriate in vitro studies to characterize non-CYP-mediated metabolism and to understand the enzymes involved followed by pharmacokinetic studies in the appropriately characterized surrogate species. The review will highlight progress made in establishing in vitro-in vivo correlation, predicting human clearance and avoiding costly clinical failures when non-CYP-mediated metabolic pathways are predominant.
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Affiliation(s)
- Upendra A Argikar
- Analytical Sciences and Imaging, Novartis Institutes for Biomedical Research, Inc., Cambridge, Massachusetts, USA
| | - Philip M Potter
- Department of Chemical Biology and Therapeutics, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - J Matthew Hutzler
- Q2 Solutions, Bioanalytical and ADME Labs, Indianapolis, Indiana, USA
| | - Punit H Marathe
- Department of Metabolism and Pharmacokinetics, Bristol-Myers Squibb, Princeton, New Jersey, USA.
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32
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Ballard TE, Wang S, Cox LM, Moen MA, Krzyzewski S, Ukairo O, Obach RS. Application of a Micropatterned Cocultured Hepatocyte System To Predict Preclinical and Human-Specific Drug Metabolism. ACTA ACUST UNITED AC 2015; 44:172-9. [PMID: 26608083 DOI: 10.1124/dmd.115.066688] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Accepted: 11/19/2015] [Indexed: 01/09/2023]
Abstract
Laboratory animal models are the industry standard for preclinical risk assessment of drug candidates. Thus, it is important that these species possess profiles of drug metabolites that are similar to those anticipated in human, since metabolites also could be responsible for biologic activities or unanticipated toxicity. Under most circumstances, preclinical species reflect human in vivo metabolites well; however, there have been several notable exceptions, and understanding and predicting these exceptions with an in vitro system would be very useful. Human micropatterned cocultured (MPCC) hepatocytes have been shown to recapitulate human in vivo qualitative metabolic profiles, but the same demonstration has not been performed yet for laboratory animal species. In this study, we investigated several compounds that are known to produce human-unique metabolites through CYP2C9, UGT1A4, aldehyde oxidase (AO), or N-acetyltransferase that were poorly covered or not detected at all in the selected preclinical species. To perform our investigation we used 24-well MPCC hepatocyte plates having three individual human donors and a single donor each of monkey, dog, and rat to study drug metabolism at four time points per species. Through the use of the multispecies MPCC hepatocyte system, the metabolite profiles of the selected compounds in human donors effectively captured the qualitative in vivo metabolite profile with respect to the human metabolite of interest. Human-unique metabolites that were not detected in vivo in certain preclinical species (normally dog and rat) were also not generated in the corresponding species in vitro, confirming that the MPCC hepatocytes can provide an assessment of preclinical species metabolism. From these results, we conclude that multispecies MPCC hepatocyte plates could be used as an effective in vitro tool for preclinical understanding of species metabolism relative to humans and aid in the choice of appropriate preclinical models.
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Affiliation(s)
- T Eric Ballard
- Pharmacokinetics, Dynamics and Metabolism, Pfizer, Inc., Groton, Connecticut (T.E.B., S.W., L.M.C., M.A.M., R.S.O.); Hepregen Corporation, Medford, Massachusetts (S.K., O.U.),
| | - Shuai Wang
- Pharmacokinetics, Dynamics and Metabolism, Pfizer, Inc., Groton, Connecticut (T.E.B., S.W., L.M.C., M.A.M., R.S.O.); Hepregen Corporation, Medford, Massachusetts (S.K., O.U.)
| | - Loretta M Cox
- Pharmacokinetics, Dynamics and Metabolism, Pfizer, Inc., Groton, Connecticut (T.E.B., S.W., L.M.C., M.A.M., R.S.O.); Hepregen Corporation, Medford, Massachusetts (S.K., O.U.)
| | - Mark A Moen
- Pharmacokinetics, Dynamics and Metabolism, Pfizer, Inc., Groton, Connecticut (T.E.B., S.W., L.M.C., M.A.M., R.S.O.); Hepregen Corporation, Medford, Massachusetts (S.K., O.U.)
| | - Stacy Krzyzewski
- Pharmacokinetics, Dynamics and Metabolism, Pfizer, Inc., Groton, Connecticut (T.E.B., S.W., L.M.C., M.A.M., R.S.O.); Hepregen Corporation, Medford, Massachusetts (S.K., O.U.)
| | - Okechukwu Ukairo
- Pharmacokinetics, Dynamics and Metabolism, Pfizer, Inc., Groton, Connecticut (T.E.B., S.W., L.M.C., M.A.M., R.S.O.); Hepregen Corporation, Medford, Massachusetts (S.K., O.U.)
| | - R Scott Obach
- Pharmacokinetics, Dynamics and Metabolism, Pfizer, Inc., Groton, Connecticut (T.E.B., S.W., L.M.C., M.A.M., R.S.O.); Hepregen Corporation, Medford, Massachusetts (S.K., O.U.)
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Affiliation(s)
- Deepak Dalvie
- Pfizer Global Research and Development, LaJolla Laboratories San Diego
| | - Michael Zientek
- Pfizer Global Research and Development, LaJolla Laboratories San Diego
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34
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Sanoh S, Tayama Y, Sugihara K, Kitamura S, Ohta S. Significance of aldehyde oxidase during drug development: Effects on drug metabolism, pharmacokinetics, toxicity, and efficacy. Drug Metab Pharmacokinet 2015; 30:52-63. [DOI: 10.1016/j.dmpk.2014.10.009] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2014] [Revised: 10/03/2014] [Accepted: 10/03/2014] [Indexed: 12/28/2022]
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Manevski N, Balavenkatraman KK, Bertschi B, Swart P, Walles M, Camenisch G, Schiller H, Kretz O, Ling B, Wettstein R, Schaefer DJ, Pognan F, Wolf A, Litherland K. Aldehyde Oxidase Activity in Fresh Human Skin. Drug Metab Dispos 2014; 42:2049-57. [DOI: 10.1124/dmd.114.060368] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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36
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Smith BJ, Pithavala Y, Bu HZ, Kang P, Hee B, Deese AJ, Pool WF, Klamerus KJ, Wu EY, Dalvie DK. Pharmacokinetics, metabolism, and excretion of [14C]axitinib, a vascular endothelial growth factor receptor tyrosine kinase inhibitor, in humans. Drug Metab Dispos 2014; 42:918-31. [PMID: 24608633 DOI: 10.1124/dmd.113.056531] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The disposition of a single oral dose of 5 mg (100 μCi) of [(14)C]axitinib was investigated in fasted healthy human subjects (N = 8). Axitinib was rapidly absorbed, with a median plasma Tmax of 2.2 hours and a geometric mean Cmax and half-life of 29.2 ng/ml and 10.6 hours, respectively. The plasma total radioactivity-time profile was similar to that of axitinib but the AUC was greater, suggesting the presence of metabolites. The major metabolites in human plasma (0-12 hours), identified as axitinib N-glucuronide (M7) and axitinib sulfoxide (M12), were pharmacologically inactive, and with axitinib comprised 50.4%, 16.2%, and 22.5% of the radioactivity, respectively. In excreta, the majority of radioactivity was recovered in most subjects by 48 hours postdose. The median radioactivity excreted in urine, feces, and total recovery was 22.7%, 37.0%, and 59.7%, respectively. The recovery from feces was variable across subjects (range, 2.5%-60.2%). The metabolites identified in urine were M5 (carboxylic acid), M12 (sulfoxide), M7 (N-glucuronide), M9 (sulfoxide/N-oxide), and M8a (methylhydroxy glucuronide), accounting for 5.7%, 3.5%, 2.6%, 1.7%, and 1.3% of the dose, respectively. The drug-related products identified in feces were unchanged axitinib, M14/15 (mono-oxidation/sulfone), M12a (epoxide), and an unidentified metabolite, comprising 12%, 5.7%, 5.1%, and 5.0% of the dose, respectively. The proposed mechanism to form M5 involved a carbon-carbon bond cleavage via M12a, followed by rearrangement to a ketone intermediate and subsequent Baeyer-Villiger rearrangement, possibly through a peroxide intermediate. In summary, the study characterized axitinib metabolites in circulation and primary elimination pathways of the drug, which were mainly oxidative in nature.
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Affiliation(s)
- Bill J Smith
- Pharmacokinetics, Dynamics and Metabolism (B.J.S., H.-Z.B., P.K., W.F.P., E.Y.W., D.K.D.), Pfizer Oncology-Clinical Pharmacology (Y.P., B.H., K.J.K.), and Pharmaceutical Sciences (A.J.D.), Pfizer Inc., Worldwide Research and Development, La Jolla Laboratories, San Diego, CA
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An industry perspective on tiered approach to the investigation of metabolites in drug development. Bioanalysis 2014; 6:617-28. [DOI: 10.4155/bio.14.25] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Background: A tiered approach to drug metabolite measurement and identification is often used industry wide to fulfill regulatory requirements specified in recent US FDA and European Medicines Agency guidance. Although this strategy is structured in its intent it can be customized to address unique challenges which may arise during early and late drug development activities. These unconventional methods can be applied at any stage to facilitate metabolite characterization. Results: Two case studies are described NVS 1 and 2. NVS 1: plasma concentrations, measured using a radiolabeled MS-response factor exploratory method, were comparable to those from a validated bioanalytical method. The NVS 2 example showed how in vitro analysis helped to characterize an unexpectedly abundant circulating plasma metabolite M3. Conclusion: A tiered approach incorporating many aspects of conventional and flexible analytical methodologies can be pulled together to address regulatory questions surrounding drug metabolite characterization.
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38
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Fan J, de Lannoy IA. Pharmacokinetics. Biochem Pharmacol 2014; 87:93-120. [DOI: 10.1016/j.bcp.2013.09.007] [Citation(s) in RCA: 169] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2013] [Revised: 09/06/2013] [Accepted: 09/09/2013] [Indexed: 11/29/2022]
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Bendrath F, Falodun A, Abilov ZA, Villinger A, Langer P. Regioselective Synthesis of Pyrazoles and Isoxazoles with Cyclopropanated Side-Chain. J Heterocycl Chem 2013. [DOI: 10.1002/jhet.1960] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Franziska Bendrath
- Institut für Chemie; Universität Rostock; Albert-Einstein-Str. 3a 18059 Rostock Germany
| | - Abiodun Falodun
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy; University of Benin; Benin City Nigeria
| | | | - Alexander Villinger
- Institut für Chemie; Universität Rostock; Albert-Einstein-Str. 3a 18059 Rostock Germany
| | - Peter Langer
- Institut für Chemie; Universität Rostock; Albert-Einstein-Str. 3a 18059 Rostock Germany
- Leibniz-Institut für Katalyse e. V. an der Universität Rostock; Albert-Einstein-Str. 29a 18059 Rostock Germany
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40
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Nirogi R, Kandikere V, Palacharla RC, Bhyrapuneni G, Kanamarlapudi VB, Ponnamaneni RK, Manoharan AK. Identification of a suitable and selective inhibitor towards aldehyde oxidase catalyzed reactions. Xenobiotica 2013; 44:197-204. [DOI: 10.3109/00498254.2013.819594] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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41
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Fu C, Di L, Han X, Soderstrom C, Snyder M, Troutman MD, Obach RS, Zhang H. Aldehyde Oxidase 1 (AOX1) in Human Liver Cytosols: Quantitative Characterization of AOX1 Expression Level and Activity Relationship. Drug Metab Dispos 2013; 41:1797-804. [DOI: 10.1124/dmd.113.053082] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Cheng H, Li C, Bailey S, Baxi SM, Goulet L, Guo L, Hoffman J, Jiang Y, Johnson TO, Johnson TW, Knighton DR, Li J, Liu KKC, Liu Z, Marx MA, Walls M, Wells PA, Yin MJ, Zhu J, Zientek M. Discovery of the Highly Potent PI3K/mTOR Dual Inhibitor PF-04979064 through Structure-Based Drug Design. ACS Med Chem Lett 2013; 4:91-7. [PMID: 24900568 DOI: 10.1021/ml300309h] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2012] [Accepted: 11/07/2012] [Indexed: 11/30/2022] Open
Abstract
PI3K, AKT, and mTOR are key kinases from PI3K signaling pathway being extensively pursued to treat a variety of cancers in oncology. To search for a structurally differentiated back-up candidate to PF-04691502, which is currently in phase I/II clinical trials for treating solid tumors, a lead optimization effort was carried out with a tricyclic imidazo[1,5]naphthyridine series. Integration of structure-based drug design and physical properties-based optimization yielded a potent and selective PI3K/mTOR dual kinase inhibitor PF-04979064. This manuscript discusses the lead optimization for the tricyclic series, which both improved the in vitro potency and addressed a number of ADMET issues including high metabolic clearance mediated by both P450 and aldehyde oxidase (AO), poor permeability, and poor solubility. An empirical scaling tool was developed to predict human clearance from in vitro human liver S9 assay data for tricyclic derivatives that were AO substrates.
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Affiliation(s)
- Hengmiao Cheng
- Cancer
Chemistry, ‡PDM, and §Oncology Research Unit, Pfizer Worldwide Research and Development, La Jolla Laboratories, 10770
Science Center Drive, San Diego, California 92121, United States
| | - Chunze Li
- Cancer
Chemistry, ‡PDM, and §Oncology Research Unit, Pfizer Worldwide Research and Development, La Jolla Laboratories, 10770
Science Center Drive, San Diego, California 92121, United States
| | - Simon Bailey
- Cancer
Chemistry, ‡PDM, and §Oncology Research Unit, Pfizer Worldwide Research and Development, La Jolla Laboratories, 10770
Science Center Drive, San Diego, California 92121, United States
| | - Sangita M. Baxi
- Cancer
Chemistry, ‡PDM, and §Oncology Research Unit, Pfizer Worldwide Research and Development, La Jolla Laboratories, 10770
Science Center Drive, San Diego, California 92121, United States
| | - Lance Goulet
- Cancer
Chemistry, ‡PDM, and §Oncology Research Unit, Pfizer Worldwide Research and Development, La Jolla Laboratories, 10770
Science Center Drive, San Diego, California 92121, United States
| | - Lisa Guo
- Cancer
Chemistry, ‡PDM, and §Oncology Research Unit, Pfizer Worldwide Research and Development, La Jolla Laboratories, 10770
Science Center Drive, San Diego, California 92121, United States
| | - Jacqui Hoffman
- Cancer
Chemistry, ‡PDM, and §Oncology Research Unit, Pfizer Worldwide Research and Development, La Jolla Laboratories, 10770
Science Center Drive, San Diego, California 92121, United States
| | - Ying Jiang
- Cancer
Chemistry, ‡PDM, and §Oncology Research Unit, Pfizer Worldwide Research and Development, La Jolla Laboratories, 10770
Science Center Drive, San Diego, California 92121, United States
| | - Theodore Otto Johnson
- Cancer
Chemistry, ‡PDM, and §Oncology Research Unit, Pfizer Worldwide Research and Development, La Jolla Laboratories, 10770
Science Center Drive, San Diego, California 92121, United States
| | - Ted W. Johnson
- Cancer
Chemistry, ‡PDM, and §Oncology Research Unit, Pfizer Worldwide Research and Development, La Jolla Laboratories, 10770
Science Center Drive, San Diego, California 92121, United States
| | - Daniel R. Knighton
- Cancer
Chemistry, ‡PDM, and §Oncology Research Unit, Pfizer Worldwide Research and Development, La Jolla Laboratories, 10770
Science Center Drive, San Diego, California 92121, United States
| | - John Li
- Cancer
Chemistry, ‡PDM, and §Oncology Research Unit, Pfizer Worldwide Research and Development, La Jolla Laboratories, 10770
Science Center Drive, San Diego, California 92121, United States
| | - Kevin K.-C. Liu
- Cancer
Chemistry, ‡PDM, and §Oncology Research Unit, Pfizer Worldwide Research and Development, La Jolla Laboratories, 10770
Science Center Drive, San Diego, California 92121, United States
| | - Zhengyu Liu
- Cancer
Chemistry, ‡PDM, and §Oncology Research Unit, Pfizer Worldwide Research and Development, La Jolla Laboratories, 10770
Science Center Drive, San Diego, California 92121, United States
| | - Matthew A. Marx
- Cancer
Chemistry, ‡PDM, and §Oncology Research Unit, Pfizer Worldwide Research and Development, La Jolla Laboratories, 10770
Science Center Drive, San Diego, California 92121, United States
| | - Marlena Walls
- Cancer
Chemistry, ‡PDM, and §Oncology Research Unit, Pfizer Worldwide Research and Development, La Jolla Laboratories, 10770
Science Center Drive, San Diego, California 92121, United States
| | - Peter A. Wells
- Cancer
Chemistry, ‡PDM, and §Oncology Research Unit, Pfizer Worldwide Research and Development, La Jolla Laboratories, 10770
Science Center Drive, San Diego, California 92121, United States
| | - Min-Jean Yin
- Cancer
Chemistry, ‡PDM, and §Oncology Research Unit, Pfizer Worldwide Research and Development, La Jolla Laboratories, 10770
Science Center Drive, San Diego, California 92121, United States
| | - Jinjiang Zhu
- Cancer
Chemistry, ‡PDM, and §Oncology Research Unit, Pfizer Worldwide Research and Development, La Jolla Laboratories, 10770
Science Center Drive, San Diego, California 92121, United States
| | - Michael Zientek
- Cancer
Chemistry, ‡PDM, and §Oncology Research Unit, Pfizer Worldwide Research and Development, La Jolla Laboratories, 10770
Science Center Drive, San Diego, California 92121, United States
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Hutzler JM, Obach RS, Dalvie D, Zientek MA. Strategies for a comprehensive understanding of metabolism by aldehyde oxidase. Expert Opin Drug Metab Toxicol 2012; 9:153-68. [DOI: 10.1517/17425255.2013.738668] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Dalvie D, Xiang C, Kang P, Zhou S. Interspecies variation in the metabolism of zoniporide by aldehyde oxidase. Xenobiotica 2012; 43:399-408. [DOI: 10.3109/00498254.2012.727499] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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45
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Morrison RD, Blobaum AL, Byers FW, Santomango TS, Bridges TM, Stec D, Brewer KA, Sanchez-Ponce R, Corlew MM, Rush R, Felts AS, Manka J, Bates BS, Venable DF, Rodriguez AL, Jones CK, Niswender CM, Conn PJ, Lindsley CW, Emmitte KA, Daniels JS. The role of aldehyde oxidase and xanthine oxidase in the biotransformation of a novel negative allosteric modulator of metabotropic glutamate receptor subtype 5. Drug Metab Dispos 2012; 40:1834-45. [PMID: 22711749 DOI: 10.1124/dmd.112.046136] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Negative allosteric modulation (NAM) of metabotropic glutamate receptor subtype 5 (mGlu₅) represents a therapeutic strategy for the treatment of childhood developmental disorders, such as fragile X syndrome and autism. VU0409106 emerged as a lead compound within a biaryl ether series, displaying potent and selective inhibition of mGlu₅. Despite its high clearance and short half-life, VU0409106 demonstrated efficacy in rodent models of anxiety after extravascular administration. However, lack of a consistent correlation in rat between in vitro hepatic clearance and in vivo plasma clearance for the biaryl ether series prompted an investigation into the biotransformation of VU0409106 using hepatic subcellular fractions. An in vitro appraisal in rat, monkey, and human liver S9 fractions indicated that the principal pathway was NADPH-independent oxidation to metabolite M1 (+16 Da). Both raloxifene (aldehyde oxidase inhibitor) and allopurinol (xanthine oxidase inhibitor) attenuated the formation of M1, thus implicating the contribution of both molybdenum hydroxylases in the biotransformation of VU0409106. The use of ¹⁸O-labeled water in the S9 experiments confirmed the hydroxylase mechanism proposed, because ¹⁸O was incorporated into M1 (+18 Da) as well as in a secondary metabolite (M2; +36 Da), the formation of which was exclusively xanthine oxidase-mediated. This unusual dual and sequential hydroxylase metabolism was confirmed in liver S9 and hepatocytes of multiple species and correlated with in vivo data because M1 and M2 were the principal metabolites detected in rats administered VU0409106. An in vitro-in vivo correlation of predicted hepatic and plasma clearance was subsequently established for VU0409106 in rats and nonhuman primates.
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Affiliation(s)
- Ryan D Morrison
- Drug Metabolism and Pharmacokinetics, Vanderbilt Center for Neurosciences Drug Discovery, Vanderbilt University Medical Center, Nashville, TN, USA
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Arora VK, Philip T, Huang S, Shu YZ. A Novel Ring Oxidation of 4- or 5-Substituted 2H-Oxazole to Corresponding 2-Oxazolone Catalyzed by Cytosolic Aldehyde Oxidase. Drug Metab Dispos 2012; 40:1668-76. [DOI: 10.1124/dmd.112.044545] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
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47
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Dalvie D, Sun H, Xiang C, Hu Q, Jiang Y, Kang P. Effect of Structural Variation on Aldehyde Oxidase-Catalyzed Oxidation of Zoniporide. Drug Metab Dispos 2012; 40:1575-87. [DOI: 10.1124/dmd.112.045823] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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48
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Strelevitz TJ, Orozco CC, Obach RS. Hydralazine As a Selective Probe Inactivator of Aldehyde Oxidase in Human Hepatocytes: Estimation of the Contribution of Aldehyde Oxidase to Metabolic Clearance. Drug Metab Dispos 2012; 40:1441-8. [DOI: 10.1124/dmd.112.045195] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Prakash C, Li Z, Orlandi C, Klunk L. Assessment of exposure of metabolites in preclinical species and humans at steady state from the single-dose radiolabeled absorption, distribution, metabolism, and excretion studies: a case study. Drug Metab Dispos 2012; 40:1308-20. [PMID: 22474055 DOI: 10.1124/dmd.112.044933] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
The exposure of a drug candidate and its metabolites in humans and preclinical species during drug development needs to be determined to ensure that the safety of drug-related components in humans is adequately assessed in the standard toxicology studies. The in vivo radiolabeled studies in preclinical species and human volunteers provide the total fate of the drug-derived radioactivity including the relative abundance of metabolites. Here, we describe how the single-dose radiolabeled human studies could provide the exposure of circulating metabolites at steady state using a case study of an extensively metabolized drug, lixivaptan. After an oral dose of [(14)C]lixivaptan to humans, a total of nine metabolites were detected in the systemic circulation; eight of them exceeded 10% of the parent exposure (2-41% of total radioactivity). The plasma samples were profiled for all subjects at each time point by high-performance liquid chromatography, and metabolites were quantified using a radioactive detector. On the basis of single-dose area under the concentration-time curve (AUC) values, exposure of six human metabolites was greater at least in one preclinical species used in toxicology evaluation. On the basis of the t(1/2) of lixivaptan and two major metabolites from a single dose in humans, their AUC and C(max) values were simulated at the steady state. The simulated exposure (C(max) and AUC) values of parent drug and the two most abundant metabolites were similar to those from a 7-day clinical study obtained using a validated liquid chromatography-mass spectrometry assay, suggesting that a well designed single-dose radiolabeled human study can help in addressing the metabolites in safety testing-related issues.
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Affiliation(s)
- Chandra Prakash
- Department of Drug Metabolism and Preclinical Safety, Biogen Idec, Cambridge, MA 02142, USA.
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50
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Penner N, Xu L, Prakash C. Radiolabeled Absorption, Distribution, Metabolism, and Excretion Studies in Drug Development: Why, When, and How? Chem Res Toxicol 2012; 25:513-31. [DOI: 10.1021/tx300050f] [Citation(s) in RCA: 106] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Natalia Penner
- Department
of Drug Metabolism and Preclinical Safety, Biogen Idec, Cambridge, Massachusetts 02142
| | - Lin Xu
- Department
of Drug Metabolism and Preclinical Safety, Biogen Idec, Cambridge, Massachusetts 02142
| | - Chandra Prakash
- Department
of Drug Metabolism and Preclinical Safety, Biogen Idec, Cambridge, Massachusetts 02142
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