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Dunvald ACD, Søltoft K, Sheetal E, Just SA, Frederiksen IEB, Nielsen F, Olsen DA, Madsen JS, Hendricks O, Stage TB. Cytochrome P450 activity in rheumatoid arthritis patients during continuous IL-6 receptor antagonist therapy. Eur J Clin Pharmacol 2023; 79:1687-1698. [PMID: 37831074 PMCID: PMC10663184 DOI: 10.1007/s00228-023-03578-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Accepted: 09/22/2023] [Indexed: 10/14/2023]
Abstract
BACKGROUND Inflammation suppresses cytochrome P450 (CYP) enzyme activity, and single-dose interleukin 6 receptor antagonists (anti-IL-6R) reverse this effect. Here, we assess the impact of continuous anti-IL-6R therapy in patients with rheumatoid arthritis. METHODS In a clinical pharmacokinetic trial, the Basel cocktail was administered before and after 3 and 12 weeks of anti-IL-6R therapy to assess CYP enzyme activity (registered in the ClinicalTrials.gov database (identifier NCT04842981) on April 13th, 2021). In a retrospective study, the 4β-hydroxycholesterol/cholesterol ratio was measured as a biomarker for CYP3A4 activity before and after 3 and 6 months of anti-IL-6R therapy. The control group was patients initiating a tumor necrosis factor alfa (TNF-α) inhibitor. RESULTS In the clinical pharmacokinetic trial (n = 3), midazolam metabolic ratio (CYP3A4) was inconclusive due to the limited sample size. Midazolam AUC and Cmax indicate a weak impact on CYP3A4 activity after 3 weeks of anti-IL-6R therapy compared to baseline (AUC geometric mean ratio (GMR): 0.80, 95% CI: 0.64-0.99 and Cmax GMR: 0.58, 95% CI: 0.37-0.91), which returns to baseline levels after 12 weeks of therapy (AUC GMR 1.02, 95% CI: 0.72-1.46 and Cmax GMR 1.03, 95% CI 0.72-1.47). No effect on the 4β-hydroxycholesterol/cholesterol ratio was observed in the retrospective study. CONCLUSION Based on sparse data from three patients, continuous anti-IL-6R therapy seems to cause an acute but transient increase in CYP3A4 activity in rheumatoid arthritis patients, which may be due to a normalization of the inflammation-suppressed CYP activity. Further studies are warranted to understand the mechanism behind this putative transient effect. Trial registration Registered in the ClinicalTrials.gov database (identifier NCT04842981) on April 13th, 2021.
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Affiliation(s)
- Ann-Cathrine Dalgård Dunvald
- Clinical Pharmacology, Pharmacy and Environmental Medicine, Department of Public Health, University of Southern Denmark, JB Winsløwsvej 19, 2, DK-5000, Odense C, Denmark
| | - Kasper Søltoft
- Department of Rheumatology, Odense University Hospital, Odense, Denmark
| | - Ekta Sheetal
- Department of Rheumatology, Hospital South West Jutland, Esbjerg, Denmark
| | - Søren Andreas Just
- Section of Rheumatology, Department of Medicine, Svendborg Hospital, Odense University Hospital, Svendborg, Denmark
| | - Ida Emilie Brejning Frederiksen
- Clinical Pharmacology, Pharmacy and Environmental Medicine, Department of Public Health, University of Southern Denmark, JB Winsløwsvej 19, 2, DK-5000, Odense C, Denmark
| | - Flemming Nielsen
- Clinical Pharmacology, Pharmacy and Environmental Medicine, Department of Public Health, University of Southern Denmark, JB Winsløwsvej 19, 2, DK-5000, Odense C, Denmark
| | - Dorte Aalund Olsen
- Department of Biochemistry and Immunology, Lillebaelt Hospital, Vejle, Denmark
| | - Jonna Skov Madsen
- Department of Biochemistry and Immunology, Lillebaelt Hospital, Vejle, Denmark
- Department of Regional Health Research, Faculty of Health Sciences, University of Southern Denmark, Odense, Denmark
| | - Oliver Hendricks
- Danish Hospital for Rheumatic Diseases, Hospital South Jutland, Sønderborg, Denmark
- The DANBIO Registry, Glostrup, Denmark
| | - Tore Bjerregaard Stage
- Clinical Pharmacology, Pharmacy and Environmental Medicine, Department of Public Health, University of Southern Denmark, JB Winsløwsvej 19, 2, DK-5000, Odense C, Denmark.
- Department of Clinical Pharmacology, Odense University Hospital, Odense, Denmark.
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2
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Jackson KD, Achour B, Lee J, Geffert RM, Beers JL, Latham BD. Novel Approaches to Characterize Individual Drug Metabolism and Advance Precision Medicine. Drug Metab Dispos 2023; 51:1238-1253. [PMID: 37419681 PMCID: PMC10506699 DOI: 10.1124/dmd.122.001066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Revised: 05/30/2023] [Accepted: 06/05/2023] [Indexed: 07/09/2023] Open
Abstract
Interindividual variability in drug metabolism can significantly affect drug concentrations in the body and subsequent drug response. Understanding an individual's drug metabolism capacity is important for predicting drug exposure and developing precision medicine strategies. The goal of precision medicine is to individualize drug treatment for patients to maximize efficacy and minimize drug toxicity. While advances in pharmacogenomics have improved our understanding of how genetic variations in drug-metabolizing enzymes (DMEs) affect drug response, nongenetic factors are also known to influence drug metabolism phenotypes. This minireview discusses approaches beyond pharmacogenetic testing to phenotype DMEs-particularly the cytochrome P450 enzymes-in clinical settings. Several phenotyping approaches have been proposed: traditional approaches include phenotyping with exogenous probe substrates and the use of endogenous biomarkers; newer approaches include evaluating circulating noncoding RNAs and liquid biopsy-derived markers relevant to DME expression and function. The goals of this minireview are to 1) provide a high-level overview of traditional and novel approaches to phenotype individual drug metabolism capacity, 2) describe how these approaches are being applied or can be applied to pharmacokinetic studies, and 3) discuss perspectives on future opportunities to advance precision medicine in diverse populations. SIGNIFICANCE STATEMENT: This minireview provides an overview of recent advances in approaches to characterize individual drug metabolism phenotypes in clinical settings. It highlights the integration of existing pharmacokinetic biomarkers with novel approaches; also discussed are current challenges and existing knowledge gaps. The article concludes with perspectives on the future deployment of a liquid biopsy-informed physiologically based pharmacokinetic strategy for patient characterization and precision dosing.
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Affiliation(s)
- Klarissa D Jackson
- Division of Pharmacotherapy and Experimental Therapeutics, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina (K.D.J., J.L., R.M.G., J.L.B., B.D.L.); and Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, Rhode Island (B.A.)
| | - Brahim Achour
- Division of Pharmacotherapy and Experimental Therapeutics, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina (K.D.J., J.L., R.M.G., J.L.B., B.D.L.); and Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, Rhode Island (B.A.)
| | - Jonghwa Lee
- Division of Pharmacotherapy and Experimental Therapeutics, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina (K.D.J., J.L., R.M.G., J.L.B., B.D.L.); and Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, Rhode Island (B.A.)
| | - Raeanne M Geffert
- Division of Pharmacotherapy and Experimental Therapeutics, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina (K.D.J., J.L., R.M.G., J.L.B., B.D.L.); and Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, Rhode Island (B.A.)
| | - Jessica L Beers
- Division of Pharmacotherapy and Experimental Therapeutics, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina (K.D.J., J.L., R.M.G., J.L.B., B.D.L.); and Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, Rhode Island (B.A.)
| | - Bethany D Latham
- Division of Pharmacotherapy and Experimental Therapeutics, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina (K.D.J., J.L., R.M.G., J.L.B., B.D.L.); and Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, Rhode Island (B.A.)
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3
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Tung NP, Ma JD. Utility of endogenous 4β-hydroxycholesterol as a biomarker to assess cytochrome P 450 3A (CYP3A) activity: not quite ready for prime time. Eur J Clin Pharmacol 2022; 78:1863-1864. [PMID: 36098752 PMCID: PMC9546788 DOI: 10.1007/s00228-022-03386-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 09/07/2022] [Indexed: 11/28/2022]
Affiliation(s)
- Norint P Tung
- Skaggs School of Pharmacy & Pharmaceutical Sciences, University of California, San Diego, 9500 Gilman Drive, La Jolla, 0657, USA
| | - Joseph D Ma
- Skaggs School of Pharmacy & Pharmaceutical Sciences, University of California, San Diego, 9500 Gilman Drive, La Jolla, 0657, USA.
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4
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Eide Kvitne K, Hole K, Krogstad V, Wollmann BM, Wegler C, Johnson LK, Hertel JK, Artursson P, Karlsson C, Andersson S, Andersson TB, Sandbu R, Hjelmesæth J, Skovlund E, Christensen H, Jansson-Löfmark R, Åsberg A, Molden E, Robertsen I. Correlations between 4β-hydroxycholesterol and hepatic and intestinal CYP3A4: protein expression, microsomal ex vivo activity, and in vivo activity in patients with a wide body weight range. Eur J Clin Pharmacol 2022; 78:1289-1299. [PMID: 35648149 PMCID: PMC9283167 DOI: 10.1007/s00228-022-03336-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 05/14/2022] [Indexed: 12/14/2022]
Abstract
PURPOSE Variability in cytochrome P450 3A4 (CYP3A4) metabolism is mainly caused by non-genetic factors, hence providing a need for accurate phenotype biomarkers. Although 4β-hydroxycholesterol (4βOHC) is a promising endogenous CYP3A4 biomarker, additional investigations are required to evaluate its ability to predict CYP3A4 activity. This study investigated the correlations between 4βOHC concentrations and hepatic and intestinal CYP3A4 protein expression and ex vivo microsomal activity in paired liver and jejunum samples, as well as in vivo CYP3A4 phenotyping (midazolam) in patients with a wide body weight range. METHODS The patients (n = 96; 78 with obesity and 18 normal or overweight individuals) were included from the COCKTAIL-study (NCT02386917). Plasma samples for analysis of 4βOHC and midazolam concentrations, and liver (n = 56) and jejunal (n = 38) biopsies were obtained. The biopsies for determination of CYP3A4 protein concentration and microsomal activity were obtained during gastric bypass or cholecystectomy. In vivo CYP3A4 phenotyping was performed using semi-simultaneous oral (1.5 mg) and intravenous (1.0 mg) midazolam. RESULTS 4βOHC concentrations were positively correlated with hepatic microsomal CYP3A4 activity (ρ = 0.53, p < 0.001), and hepatic CYP3A4 concentrations (ρ = 0.30, p = 0.027), but not with intestinal CYP3A4 concentrations (ρ = 0.18, p = 0.28) or intestinal microsomal CYP3A4 activity (ρ = 0.15, p = 0.53). 4βOHC concentrations correlated weakly with midazolam absolute bioavailability (ρ = - 0.23, p = 0.027) and apparent oral clearance (ρ = 0.28, p = 0.008), but not with systemic clearance (ρ = - 0.03, p = 0.81). CONCLUSION These findings suggest that 4βOHC concentrations reflect hepatic, but not intestinal, CYP3A4 activity. Further studies should investigate the potential value of 4βOHC as an endogenous biomarker for individual dose requirements of intravenously administered CYP3A4 substrate drugs. TRIAL REGISTRATION Clinical. TRIALS gov identifier: NCT02386917.
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Affiliation(s)
- Kine Eide Kvitne
- Section for Pharmacology and Pharmaceutical Biosciences, Department of Pharmacy, University of Oslo, Blindern, P.O. Box 1068, 0316, Oslo, Norway.
| | - Kristine Hole
- Center for Psychopharmacology, Diakonhjemmet Hospital, Oslo, Norway.,Department of Life Sciences and Health, Oslo Metropolitan University, Oslo, Norway
| | - Veronica Krogstad
- Section for Pharmacology and Pharmaceutical Biosciences, Department of Pharmacy, University of Oslo, Blindern, P.O. Box 1068, 0316, Oslo, Norway
| | | | - Christine Wegler
- Department of Pharmacy, Uppsala University, Uppsala, Sweden.,DMPK, Research and Early Development, Cardiovascular, Renal and Metabolism (CVRM), AstraZeneca, BioPharmaceuticals R&D, Gothenburg, Sweden
| | - Line K Johnson
- The Morbid Obesity Center, Vestfold Hospital Trust, Tønsberg, Norway
| | - Jens K Hertel
- The Morbid Obesity Center, Vestfold Hospital Trust, Tønsberg, Norway
| | - Per Artursson
- Department of Pharmacy and Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Cecilia Karlsson
- Clinical Metabolism, Cardiovascular, Renal and Metabolism (CVRM), Late-Stage Development, AstraZeneca, BioPharmaceuticals R&D, Gothenburg, Sweden.,Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Shalini Andersson
- Oligonucleotide Discovery, Discovery Sciences, R&D, AstraZeneca, Gothenburg, Sweden
| | - Tommy B Andersson
- DMPK, Research and Early Development, Cardiovascular, Renal and Metabolism (CVRM), AstraZeneca, BioPharmaceuticals R&D, Gothenburg, Sweden
| | - Rune Sandbu
- The Morbid Obesity Center, Vestfold Hospital Trust, Tønsberg, Norway.,Deparment of Surgery, Vestfold Hospital Trust, Tønsberg, Norway
| | - Jøran Hjelmesæth
- The Morbid Obesity Center, Vestfold Hospital Trust, Tønsberg, Norway.,Department of Endocrinology, Morbid Obesity and Preventive Medicine, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Eva Skovlund
- Department of Public Health and Nursing, Norwegian University of Science and Technology, NTNU, Trondheim, Norway
| | - Hege Christensen
- Section for Pharmacology and Pharmaceutical Biosciences, Department of Pharmacy, University of Oslo, Blindern, P.O. Box 1068, 0316, Oslo, Norway
| | - Rasmus Jansson-Löfmark
- DMPK, Research and Early Development, Cardiovascular, Renal and Metabolism (CVRM), AstraZeneca, BioPharmaceuticals R&D, Gothenburg, Sweden
| | - Anders Åsberg
- Section for Pharmacology and Pharmaceutical Biosciences, Department of Pharmacy, University of Oslo, Blindern, P.O. Box 1068, 0316, Oslo, Norway.,Department of Transplant Medicine, Oslo University Hospital, Oslo, Norway
| | - Espen Molden
- Section for Pharmacology and Pharmaceutical Biosciences, Department of Pharmacy, University of Oslo, Blindern, P.O. Box 1068, 0316, Oslo, Norway.,Center for Psychopharmacology, Diakonhjemmet Hospital, Oslo, Norway
| | - Ida Robertsen
- Section for Pharmacology and Pharmaceutical Biosciences, Department of Pharmacy, University of Oslo, Blindern, P.O. Box 1068, 0316, Oslo, Norway
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Brown AJ, Sharpe LJ, Rogers MJ. Oxysterols: From physiological tuners to pharmacological opportunities. Br J Pharmacol 2020; 178:3089-3103. [PMID: 32335907 DOI: 10.1111/bph.15073] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 04/11/2020] [Accepted: 04/14/2020] [Indexed: 02/06/2023] Open
Abstract
Oxysterols are oxygenated forms of cholesterol generated via autooxidation by free radicals and ROS, or formed enzymically by a variety of enzymes such as those involved in the synthesis of bile acids. Although found at very low concentrations in vivo, these metabolites play key roles in health and disease, particularly in development and regulating immune cell responses, by binding to effector proteins such as LXRα, RORγ and Insig and directly or indirectly regulating transcriptional programmes that affect cell metabolism and function. In this review, we summarise the routes by which oxysterols can be generated and subsequently modified to other oxysterol metabolites and highlight their diverse and profound biological functions and opportunities to alter their levels using pharmacological approaches. LINKED ARTICLES: This article is part of a themed issue on Oxysterols, Lifelong Health and Therapeutics. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v178.16/issuetoc.
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Affiliation(s)
- Andrew J Brown
- School of Biotechnology and Biomolecular Sciences, UNSW Sydney, Sydney, New South Wales, Australia
| | - Laura J Sharpe
- School of Biotechnology and Biomolecular Sciences, UNSW Sydney, Sydney, New South Wales, Australia
| | - Michael J Rogers
- Garvan Institute of Medical Research and St Vincent's Clinical School, UNSW Sydney, Sydney, New South Wales, Australia
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6
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Smits A, Annaert P, Van Cruchten S, Allegaert K. A Physiology-Based Pharmacokinetic Framework to Support Drug Development and Dose Precision During Therapeutic Hypothermia in Neonates. Front Pharmacol 2020; 11:587. [PMID: 32477113 PMCID: PMC7237643 DOI: 10.3389/fphar.2020.00587] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Accepted: 04/16/2020] [Indexed: 12/21/2022] Open
Abstract
Therapeutic hypothermia (TH) is standard treatment for neonates (≥36 weeks) with perinatal asphyxia (PA) and hypoxic-ischemic encephalopathy. TH reduces mortality and neurodevelopmental disability due to reduced metabolic rate and decreased neuronal apoptosis. Since both hypothermia and PA influence physiology, they are expected to alter pharmacokinetics (PK). Tools for personalized dosing in this setting are lacking. A neonatal hypothermia physiology-based PK (PBPK) framework would enable precision dosing in the clinic. In this literature review, the stepwise approach, benefits and challenges to develop such a PBPK framework are covered. It hereby contributes to explore the impact of non-maturational PK covariates. First, the current evidence as well as knowledge gaps on the impact of PA and TH on drug absorption, distribution, metabolism and excretion in neonates is summarized. While reduced renal drug elimination is well-documented in neonates with PA undergoing hypothermia, knowledge of the impact on drug metabolism is limited. Second, a multidisciplinary approach to develop a neonatal hypothermia PBPK framework is presented. Insights on the effect of hypothermia on hepatic drug elimination can partly be generated from in vitro (human/animal) profiling of hepatic drug metabolizing enzymes and transporters. Also, endogenous biomarkers may be evaluated as surrogate for metabolic activity. To distinguish the impact of PA versus hypothermia on drug metabolism, in vivo neonatal animal data are needed. The conventional pig is a well-established model for PA and the neonatal Göttingen minipig should be further explored for PA under hypothermia conditions, as it is the most commonly used pig strain in nonclinical drug development. Finally, a strategy is proposed for establishing and fine-tuning compound-specific PBPK models for this application. Besides improvement of clinical exposure predictions of drugs used during hypothermia, the developed PBPK models can be applied in drug development. Add-on pharmacotherapies to further improve outcome in neonates undergoing hypothermia are under investigation, all in need for dosing guidance. Furthermore, the hypothermia PBPK framework can be used to develop temperature-driven PBPK models for other populations or indications. The applicability of the proposed workflow and the challenges in the development of the PBPK framework are illustrated for midazolam as model drug.
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Affiliation(s)
- Anne Smits
- Neonatal Intensive Care Unit, University Hospitals Leuven, Leuven, Belgium
- Department of Development and Regeneration, KU Leuven, Leuven, Belgium
| | - Pieter Annaert
- Drug Delivery and Disposition, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Leuven, Belgium
| | - Steven Van Cruchten
- Applied Veterinary Morphology, Department of Veterinary Sciences, University of Antwerp, Wilrijk, Belgium
| | - Karel Allegaert
- Department of Development and Regeneration, KU Leuven, Leuven, Belgium
- Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Leuven, Belgium
- Department of Clinical Pharmacy, Erasmus MC-Sophia Children's Hospital, Rotterdam, Netherlands
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7
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Hoshikawa K, Naito T, Akutsu S, Saotome M, Maekawa Y, Kawakami J. Impact of CYP3A5 genotype on tolvaptan pharmacokinetics and their relationships with endogenous markers of CYP3A activity and serum sodium level in heart failure patients. Basic Clin Pharmacol Toxicol 2019; 126:353-363. [DOI: 10.1111/bcpt.13355] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Accepted: 10/21/2019] [Indexed: 02/06/2023]
Affiliation(s)
- Kohei Hoshikawa
- Department of Hospital Pharmacy Hamamatsu University School of Medicine Hamamatsu Japan
| | - Takafumi Naito
- Department of Hospital Pharmacy Hamamatsu University School of Medicine Hamamatsu Japan
| | - Shunta Akutsu
- Department of Hospital Pharmacy Hamamatsu University School of Medicine Hamamatsu Japan
| | - Masao Saotome
- Third Department of Internal Medicine Hamamatsu University School of Medicine Hamamatsu Japan
| | - Yuichiro Maekawa
- Third Department of Internal Medicine Hamamatsu University School of Medicine Hamamatsu Japan
| | - Junichi Kawakami
- Department of Hospital Pharmacy Hamamatsu University School of Medicine Hamamatsu Japan
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8
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Prytuła A, Cransberg K, Raes A. Drug-metabolizing enzymes CYP3A as a link between tacrolimus and vitamin D in renal transplant recipients: is it relevant in clinical practice? Pediatr Nephrol 2019; 34:1201-1210. [PMID: 30058048 DOI: 10.1007/s00467-018-4030-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Revised: 07/10/2018] [Accepted: 07/20/2018] [Indexed: 01/08/2023]
Abstract
CYP3A enzymes are involved in the metabolism of calcineurin inhibitor tacrolimus as well as vitamin D. In this review, we summarize the clinical aspects of CYP3A-mediated metabolism of tacrolimus and vitamin D with emphasis on the influence of single-nucleotide polymorphisms on tacrolimus disposition. We describe the utility of 4β hydroxycholesterol as a marker of CYP3A activity. Then, we discuss the possible interaction between calcineurin inhibitors and vitamin D in solid organ transplant recipients. Also, we review other mechanisms which may contribute to side effects of calcineurin inhibitors on bone. Lastly, suggestions for future research and clinical perspectives are discussed.
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Affiliation(s)
- Agnieszka Prytuła
- Paediatric Nephrology and Rheumatology Department, Ghent University Hospital, C Heymanslaan 10, 9000, Ghent, Belgium.
| | - Karlien Cransberg
- Paediatric Nephrology Department, Erasmus MC- Sophia Children's Hospital, Rotterdam, the Netherlands
| | - Ann Raes
- Paediatric Nephrology and Rheumatology Department, Ghent University Hospital, C Heymanslaan 10, 9000, Ghent, Belgium.,Safepedrug Unit, Ghent, Belgium
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9
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Kapetas AJ, Sorich MJ, Rodrigues AD, Rowland A. Guidance for Rifampin and Midazolam Dosing Protocols To Study Intestinal and Hepatic Cytochrome P450 (CYP) 3A4 Induction and De-induction. AAPS JOURNAL 2019; 21:78. [DOI: 10.1208/s12248-019-0341-y] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2019] [Accepted: 05/15/2019] [Indexed: 12/24/2022]
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10
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Gjestad C, Hole K, Haslemo T, Diczfalusy U, Molden E. Effect of Grapefruit Juice Intake on Serum Level of the Endogenous CYP3A4 Metabolite 4β-Hydroxycholesterol-an Interaction Study in Healthy Volunteers. AAPS JOURNAL 2019; 21:58. [PMID: 31020430 DOI: 10.1208/s12248-019-0330-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Accepted: 04/05/2019] [Indexed: 12/20/2022]
Abstract
4β-Hydroxycholesterol (4βOHC) is an endogenous CYP3A4 metabolite. However, it is unclear whether circulating levels of 4βOHC may reflect hepatic CYP3A4 activity or both hepatic and intestinal enzyme activity. The aim of this study was to investigate the effect of grapefruit juice, regarded to be a selective intestinal CYP3A4 inhibitor, on serum 4βOHC levels in healthy volunteers. The participants (n = 22) consumed grapefruit juice twice daily for 3 weeks followed by a 2-week washout period. Blood samples for measurements of 4βOHC and the non-CYP3A4-derived oxysterols 24-hydroxycholesterol (24OHC) and 27-hydroxycholesterol (27OHC), as well as lathosterol and total cholesterol, were drawn on days 0, 7, 21, and 35. Median individual changes (ratios) in cholesterol-corrected 4βOHC levels from baseline to weeks 1, 3, and 5 were 0.94 (P = 0.2), 0.98 (P = 0.3), and 0.97 (P = 0.9), respectively. In comparison, median changes (ratios) in cholesterol-corrected levels of 24OHC at the same points were 1.01 (P = 0.6), 0.98 (P = 0.3), and 0.99 (P = 0.5), and of 27OHC 1.01 (P = 0.8), 0.97 (P = 0.5), and 0.99 (P = 0.2). Surprisingly, serum concentration of cholesterol was significantly reduced by approximately 5% after 1 week (P = 0.03), while median cholesterol-corrected levels of lathosterol increased significantly and persistently by approximately 15% during the whole 5-week period (P < 0.04). In conclusion, the present findings suggest that intestinal CYP3A4 is not relevant for the overall formation of 4βOHC in healthy volunteers. The fact that grapefruit juice altered cholesterol homeostasis should be further investigated.
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Affiliation(s)
- Caroline Gjestad
- Center for Psychopharmacology, Diakonhjemmet Hospital, PO Box 85, Vinderen, N-0319, Oslo, Norway.
| | - Kristine Hole
- Center for Psychopharmacology, Diakonhjemmet Hospital, PO Box 85, Vinderen, N-0319, Oslo, Norway
| | - Tore Haslemo
- Center for Psychopharmacology, Diakonhjemmet Hospital, PO Box 85, Vinderen, N-0319, Oslo, Norway
| | - Ulf Diczfalusy
- Department of Laboratory Medicine, Karolinska Institutet, Huddinge, Sweden
| | - Espen Molden
- Center for Psychopharmacology, Diakonhjemmet Hospital, PO Box 85, Vinderen, N-0319, Oslo, Norway.,Department of Pharmaceutical Biosciences, School of Pharmacy, University of Oslo, Oslo, Norway
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11
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Hautajärvi H, Hukkanen J, Turpeinen M, Mattila S, Tolonen A. Quantitative analysis of 4β- and 4α‑hydroxycholesterol in human plasma and serum by UHPLC/ESI-HR-MS. J Chromatogr B Analyt Technol Biomed Life Sci 2018; 1100-1101:179-186. [DOI: 10.1016/j.jchromb.2018.09.028] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Revised: 09/06/2018] [Accepted: 09/29/2018] [Indexed: 02/06/2023]
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12
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Gjestad C, Haslemo T, Andreassen OA, Molden E. Gjestad et al. reply to 'Was 4β-hydroxycholesterol ever going to be a useful marker of CYP3A4 activity?' by Neuhoff and Tucker. Br J Clin Pharmacol 2018; 84:1624-1625. [PMID: 29749106 DOI: 10.1111/bcp.13606] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Revised: 03/25/2018] [Accepted: 04/02/2018] [Indexed: 12/13/2022] Open
Affiliation(s)
- Caroline Gjestad
- Center for Psychopharmacology, Diakonhjemmet Hospital, Oslo, Norway
| | - Tore Haslemo
- Center for Psychopharmacology, Diakonhjemmet Hospital, Oslo, Norway
| | - Ole A Andreassen
- NORMENT, KG Jebsen Centre for Psychosis Research, Institute of Clinical Medicine, University of Oslo, Oslo, Norway.,Division of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway
| | - Espen Molden
- Center for Psychopharmacology, Diakonhjemmet Hospital, Oslo, Norway.,Department of Pharmaceutical Biosciences, School of Pharmacy, University of Oslo, Oslo, Norway
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Kuypers DRJ, Vanhove T. Kuypers and Vanhove reply to 'Was 4β-hydroxycholesterol ever going to be a useful marker of CYP3A4 activity?' by Neuhoff and Tucker. Br J Clin Pharmacol 2018; 84:1622-1623. [PMID: 29691891 DOI: 10.1111/bcp.13592] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Revised: 03/09/2018] [Accepted: 03/21/2018] [Indexed: 12/14/2022] Open
Affiliation(s)
- Dirk R J Kuypers
- Department of Nephrology and Renal Transplantation, University Hospitals Leuven, Leuven, Belgium
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Neuhoff S, Tucker GT. Was 4β-hydroxycholesterol ever going to be a useful marker of CYP3A4 activity? Br J Clin Pharmacol 2018; 84:1620-1621. [PMID: 29464732 DOI: 10.1111/bcp.13538] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 01/15/2018] [Accepted: 01/21/2018] [Indexed: 12/11/2022] Open
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