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Kibitov AA, Kiryanova EM, Salnikova LI, Bure IV, Shmukler AB, Kibitov AO. The ANKK1/DRD2 gene TaqIA polymorphism (rs1800497) is associated with the severity of extrapyramidal side effects of haloperidol treatment in CYP2D6 extensive metabolizers with schizophrenia spectrum disorders. Drug Metab Pers Ther 2023; 38:133-142. [PMID: 36437548 DOI: 10.1515/dmpt-2022-0143] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Accepted: 09/12/2022] [Indexed: 06/07/2023]
Abstract
OBJECTIVES Extrapyramidal symptoms (EPS) are one of the most prominent side effects of haloperidol. Variability of EPS severity may be associated with the genetic factors, affecting both haloperidol pharmacokinetics (e.g., CYP2D6) and pharmacodynamics (e.g., DRD2, ANKK1). We conducted a 3-week prospective study to investigate the associations of ANKK1/DRD2 TaqIA (rs1800497), DRD2 -141C Ins/Del (rs1799732) polymorphisms and CYP2D6 metabolic phenotype on the efficacy of haloperidol treatment and severity of EPS in patients with schizophrenia spectrum disorders. METHODS In total, 57 inpatients with schizophrenia spectrum disorders (24 (42.1%)) females; age -46.7 (11.8) years (M(SD)) of European ancestry were enrolled. BARS and SAS scales were used to assess EPS. PANSS and CGI scales - to assess the efficacy of haloperidol treatment. Genotyping was performed by real-time PCR. CYP2D6 metabolic phenotype was predicted by the CYP2D6 *3, *4, *5, *6, *9, *10, *41 and xN genotypes. RESULTS Minor C allele of TaqIA was associated with higher scores of BARS (p=0.029) and SAS (p=0.024) on day 21 and minor Del allele of -141C Ins/Del - with more prominent clinical improvement by CGI scale (p=0.007) but not by PANSS. These differences were observed only in extensive CYP2D6 metabolizers, although no associations with the metabolic type itself were found. General linear model showed that the combination of TaqIA genotype and metabolic type was significantly associated with BARS score on day 21 (p=0.013). CONCLUSIONS Our results highlight the importance of using both pharmacokinetic and pharmacodynamic genetic markers for predicting haloperidol treatment response to personalize schizophrenia spectrum disorders treatment.
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Affiliation(s)
- Andrey Alexandrovitch Kibitov
- Resident of Translational Psychiatry Department, V.M. Bekhterev National Medical Research Center for Psychiatry and Neurology, Saint Petersburg, Russian Federation
| | - Elena Mikhaylovna Kiryanova
- Department of Psychotic Spectrum Disorders, Serbsky National Medical Research Center on Psychiatry and Addictions, Moscow, Russian Federation
| | - Ludmila Ivanovna Salnikova
- Department of Psychotic Spectrum Disorders, Serbsky National Medical Research Center on Psychiatry and Addictions, Moscow, Russian Federation
| | - Irina Vladimirovna Bure
- Institute for Molecular and Personalized Medicine, Russian Medical Academy of Continuous Professional Education, Moscow, Russian Federation
- Department of Medical Genetics, Institute of Molecular Medicine, Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russian Federation
| | - Alexander Borisovitch Shmukler
- Deputy General Director for Research, Serbsky Medical Research Center on Psychiatry and Addictions, Moscow, Russian Federation
| | - Alexander Olegovitch Kibitov
- Molecular Genetics Laboratory, Serbsky National Medical Research Center on Psychiatry and Addictions, Moscow, Russian Federation
- Translational Psychiatry Department, Bekhterev National Medical Research Center on Psychiatry and Neurology, Saint Petersburg, Russian Federation
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Ikonnikova AY, Filippova MA, Surzhikov SA, Pozhitnova VO, Kazakov RE, Lisitsa TS, Belkov SA, Nasedkina TV. Biochip-based approach for comprehensive pharmacogenetic testing. Drug Metab Pers Ther 2020; 36:dmdi-2020-0155. [PMID: 33780199 DOI: 10.1515/dmpt-2020-0155] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Accepted: 11/09/2020] [Indexed: 02/05/2023]
Abstract
OBJECTIVES Individual sensitivity to many widely used drugs is significantly associated with genetic factors. The purpose of our work was to develop an instrument for simultaneous determination of the most clinically relevant pharmacogenetic markers to allow personalized treatment, mainly in patients with cardiovascular diseases. METHODS Multiplex one-step polymerase chain reaction (PCR) followed by hybridization on a low-density biochip was applied to interrogate 15 polymorphisms in the following eight genes: VKORC1 -1639 G>A, CYP4F2 1297 G>A, GGCX 2374 C>G, CYP2C9 *2,*3 (430 C>T, 1075 A>C), CYP2D6 *3,*4, *6, *9, *41 (2549delA, 1846 G>A, 1707delT, 2615_2617delAAG, 2988 G>A), CYP2C19 *2,*3,*17 (681 G>A, 636 G>A, -806 C>T), ABCB1 (3435 C>T), SLCO1B1 *5. RESULTS Two hundred nineteen patients with cardiovascular diseases (CVD) and 48 female patients with estrogen receptor (ER)-positive breast cancer (BC) were genotyped. Of the 219 CVD patients, 203 (92.7%) carried one or more actionable at-risk genotypes based on VKORC1/CYP2C9, CYP2C9, CYP2C19, SLCO1B1, and CYP2D6 genotypes. Among them, 67 patients (30.6%) carried one, 58 patients (26.5%) carried two, 51 patients (23.3%) carried three, 26 patients (11.9%) carried four, and one patient (0.4%) carried five risk actionable genotypes. In the ER-positive BC group 12 patients (25%) were CYP2D6 intermediate or poor metabolizers. CONCLUSIONS The developed biochip is applicable for rapid and robust genotyping of patients who were taking a wide spectrum of medications to optimize drugs and dosage and avoid adverse drug reactions in cardiology, oncology, psychiatry, rheumatology and gastroenterology.
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Affiliation(s)
- Anna Yu Ikonnikova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
| | - Marina A Filippova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
| | - Sergey A Surzhikov
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
| | - Victoria O Pozhitnova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
| | - Ruslan E Kazakov
- Federal State Budgetary Institution "Scientific Centre for Expert Evaluation of Medicinal Products" of the Ministry of Health of the Russian Federation, Moscow, Russia
| | - Tatiana S Lisitsa
- Moscow Clinical Scientific Center named after Loginov Moscow Healthcare Department, Moscow, Russia
| | - Sergey A Belkov
- Federal State Budgetary Institution "Scientific Centre for Expert Evaluation of Medicinal Products" of the Ministry of Health of the Russian Federation, Moscow, Russia
| | - Tatiana V Nasedkina
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
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Notsu Y, Shimizu M, Sasaki T, Nakano A, Ota M, Yoshida S, Yamazaki H. Simple pharmacokinetic models accounting for drug monitoring results of atomoxetine and its 4-hydroxylated metabolites in Japanese pediatric patients genotyped for cytochrome P450 2D6. Drug Metab Pharmacokinet 2019; 35:191-200. [PMID: 32184039 DOI: 10.1016/j.dmpk.2019.08.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Revised: 06/30/2019] [Accepted: 08/19/2019] [Indexed: 01/15/2023]
Abstract
Atomoxetine is an approved medicine for attention-deficit/hyperactivity disorder and a cytochrome P450 2D6 (CYP2D6) probe substrate. Simple physiologically based pharmacokinetic (PBPK) models and compartment models were set up to account for drug monitoring results of 33 Japanese patients (6-15 years of age) to help establish the correct dosage for the evaluation of clinical outcomes. The steady-state one-point drug monitoring data for the most participants indicated the extensive biotransformation of atomoxetine to 4-hydroxyatomoxetine under individually prescribed doses of atomoxetine. However, 5 participants (with impaired CYP2D6 activity scores based on the CYP2D6 genotypes) showed high plasma concentrations of atomoxetine (0.53-1.5 μM) compared with those of total 4-hydroxyatomoxetine (0.49-1.4 μM). Results from full PBPK models using the in-built Japanese pediatric system of software Simcyp, one-compartment models, and new simple PBPK models (using parameters that reflected the subjects' small body size and normal/reduced CYP2D6-dependent clearance) could overlay one-point measured drug/metabolite plasma concentrations from almost common 28 participants within threefold ranges. Validated one-compartment or simple PBPK models can be used to predict steady-state plasma concentrations of atomoxetine and/or its primary metabolites in Japanese pediatric patients (>6 years) who took a variety of individualized doses in a clinical setting.
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Affiliation(s)
- Yuki Notsu
- Showa Pharmaceutical University, Machida, Tokyo, 194-8543, Japan
| | - Makiko Shimizu
- Showa Pharmaceutical University, Machida, Tokyo, 194-8543, Japan
| | - Tatsuro Sasaki
- Showa Pharmaceutical University, Machida, Tokyo, 194-8543, Japan
| | - Ayane Nakano
- Showa Pharmaceutical University, Machida, Tokyo, 194-8543, Japan
| | - Miki Ota
- Showa Pharmaceutical University, Machida, Tokyo, 194-8543, Japan
| | - Sayaka Yoshida
- Nara Prefecture General Medical Center, Nara, 630-8581, Japan
| | - Hiroshi Yamazaki
- Showa Pharmaceutical University, Machida, Tokyo, 194-8543, Japan.
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Brooks JD, Comen EA, Reiner AS, Orlow I, Leong SF, Liang X, Mellemkjær L, Knight JA, Lynch CF, John EM, Bernstein L, Woods M, Doody DR, Malone KE, Bernstein JL. CYP2D6 phenotype, tamoxifen, and risk of contralateral breast cancer in the WECARE Study. Breast Cancer Res 2018; 20:149. [PMID: 30526633 PMCID: PMC6288916 DOI: 10.1186/s13058-018-1083-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Accepted: 11/19/2018] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Tamoxifen treatment greatly reduces a woman's risk of developing a second primary breast cancer. There is, however, substantial variability in treatment response, some of which may be attributed to germline genetic variation. CYP2D6 is a key enzyme in the metabolism of tamoxifen to its active metabolites, and variants in this gene have been associated with reduced tamoxifen metabolism. The impact of variation on risk of contralateral breast cancer (CBC) is unknown. METHODS Germline DNA from 1514 CBC cases and 2203 unilateral breast cancer controls was genotyped for seven single nucleotide polymorphisms, one three-nucleotide insertion-deletion, and a full gene deletion. Each variant has an expected impact on enzyme activity, which in combination allows for the classification of women as extensive, intermediate, and poor metabolizers (EM, IM, and PM respectively). Each woman was assigned one of six possible diplotypes and a corresponding CYP2D6 activity score (AS): EM/EM (AS = 2), EM/IM (AS = 1.5), EM/PM (AS = 1), IM/IM (AS = 0.75), IM/PM (AS = 0.5), and PM/PM (AS = 0). We also collapsed categories of the AS to generate an overall phenotype (EM, AS ≥ 1; IM, AS = 0.5-0.75; PM, AS = 0). Rate ratios (RRs) and 95% confidence intervals (CIs) for the association between tamoxifen treatment and risk of CBC in our study population were estimated using conditional logistic regression, stratified by AS. RESULTS Among women with AS ≥ 1 (i.e., EM), tamoxifen treatment was associated with a 20-55% reduced RR of CBC (AS = 2, RR = - 0.81, 95% CI 0.62-1.06; AS = 1.5, RR = 0.45, 95% CI 0.30-0.68; and AS = 1, RR = 0.55, 95% CI 0.40-0.74). Among women with no EM alleles and at least one PM allele (i.e., IM and PM), tamoxifen did not appear to impact the RR of CBC in this population (AS = 0.5, RR = 1.08, 95% CI 0.59-1.96; and AS = 0, RR = 1.17, 95% CI 0.58-2.35) (p for homogeneity = - 0.02). CONCLUSION This study suggests that the CYP2D6 phenotype may contribute to some of the observed variability in the impact of tamoxifen treatment for a first breast cancer on risk of developing CBC.
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Affiliation(s)
- Jennifer D. Brooks
- University of Toronto, Dalla Lana School of Public Health Sciences, 155 College St. HSB 676, Toronto, ON M5T 3M7 Canada
| | | | - Anne S. Reiner
- Memorial Sloan Kettering Cancer Center, New York, NY USA
| | - Irene Orlow
- Memorial Sloan Kettering Cancer Center, New York, NY USA
| | - Siok F. Leong
- Memorial Sloan Kettering Cancer Center, New York, NY USA
| | - Xiaolin Liang
- Memorial Sloan Kettering Cancer Center, New York, NY USA
| | | | - Julia A. Knight
- University of Toronto, Dalla Lana School of Public Health Sciences, 155 College St. HSB 676, Toronto, ON M5T 3M7 Canada
- Lunenfeld-Tanenbaum Research Institute, Sinai Health System, Toronto, Canada
| | | | - Esther M. John
- Department of Medicine and Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA USA
| | - Leslie Bernstein
- Beckman Research Institute, City of Hope National Medical Centre, Duarte, CA USA
| | - Meghan Woods
- Memorial Sloan Kettering Cancer Center, New York, NY USA
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Ito T, Yamamoto K, Ohsawa F, Otsuka I, Hishimoto A, Sora I, Hirai M, Yano I. Association of CYP2D6 polymorphisms and extrapyramidal symptoms in schizophrenia patients receiving risperidone: a retrospective study. J Pharm Health Care Sci 2018; 4:28. [PMID: 30479825 PMCID: PMC6245770 DOI: 10.1186/s40780-018-0126-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Accepted: 11/07/2018] [Indexed: 11/10/2022] Open
Abstract
Background Risperidone is mainly metabolized by cytochrome P450 (CYP) 2D6 in the liver. The gene encoding CYP2D6 is highly polymorphic. The average steady-state plasma concentration of risperidone active moiety is higher in the CYP2D6 intermediate metabolizers (IMs) compared with that in the extensive metabolizers (EMs). An association between drug-induced extrapyramidal symptoms scale (DIEPSS) score and CYP2D6 polymorphisms has not been reported to date. This study investigates the association of CYP2D6 polymorphisms with the severity of extrapyramidal symptoms in schizophrenia patients receiving risperidone therapy. Methods Schizophrenia patients undergoing risperidone treatment were recruited for the study in the Kobe University Hospital. We evaluated extrapyramidal symptoms of schizophrenia using the DIEPSS. CYP2D6*10 and CYP2D6*14 were analyzed using TaqMan® assays, and CYP2D6*5 was analyzed using the long-PCR method. Patients with CYP2D6*1/*5, *1/*14, *5/*10, *10/*10, and *10/*14 were classified as IMs, and patients with CYP2D6*1/*1 and *1/*10 were classified as EMs. Patients with CYP2D6*5/*5, *5/*14, and *14/*14 were classified as poor metabolizers (PMs). Results A total of 22 patients were included in the study. No patients were classified as PMs. The dose of risperidone (mg/day) was not significantly different between EMs (n = 15) and IMs (n = 7) (median with the interquartile range: 4.0 (2.0-6.0) vs. 4.0 (2.0-7.0) mg, p = 0.31). The age and disease duration of schizophrenia were not significantly different between the EMs and IMs. The DIEPSS score in the IMs was significantly higher than that in the EMs (median with the interquartile range: 5.0 (3.5-6.5) vs. 0.0 (0.0-3.0), p < 0.001). The multiple regression analysis showed that CYP2D6 IMs is a significant risk factor for the DIEPSS (p < 0.05). Conclusion Special attentions should be paid to the onset of extrapyramidal symptoms in schizophrenia patients identified as CYP2D6 IM undergoing risperidone therapy.
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Affiliation(s)
- Takahiro Ito
- 1Department of Pharmacy, Kobe University Hospital, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, 650-0017 Japan
| | - Kazuhiro Yamamoto
- 1Department of Pharmacy, Kobe University Hospital, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, 650-0017 Japan
| | - Fuminori Ohsawa
- 1Department of Pharmacy, Kobe University Hospital, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, 650-0017 Japan
| | - Ikuo Otsuka
- 2Department of Psychiatry, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, 650-0017 Japan
| | - Akitoyo Hishimoto
- 2Department of Psychiatry, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, 650-0017 Japan
| | - Ichiro Sora
- 2Department of Psychiatry, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, 650-0017 Japan
| | - Midori Hirai
- 1Department of Pharmacy, Kobe University Hospital, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, 650-0017 Japan
| | - Ikuko Yano
- 1Department of Pharmacy, Kobe University Hospital, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, 650-0017 Japan
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Papazisis G, Goulas A, Sarrigiannidis A, Bargiota S, Antoniadis D, Raikos N, Basgiouraki E, Bozikas VP, Garyfallos G. ABCB1 and CYP2D6 polymorphisms and treatment response of psychotic patients in a naturalistic setting. Hum Psychopharmacol 2018; 33. [PMID: 29250824 DOI: 10.1002/hup.2644] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Revised: 08/28/2017] [Accepted: 11/10/2017] [Indexed: 12/25/2022]
Abstract
OBJECTIVES The aim of our study was to examine the association between ABCB1 polymorphisms G2677T/A (rs2032582) and C3435T (rs1045642) and common CYP2D6 variants, with the response to antipsychotic treatment of psychotic patients, in a naturalistic setting, in Greece. METHODS One hundred patients suffering from schizophrenia and other psychotic disorders were included in the study. Dosages were normalized to chlorpromazine equivalents. Response following 1 month of treatment was assessed as either a continuous variable, using the distribution of the corrected Positive and Negative Syndrome Scale percent change, or as a dichotomous variable defined as the number of patients scoring ≥30% from the corrected baseline Positive and Negative Syndrome Scale score. Genotyping was achieved with established polymerase chain reaction-restriction fragment length polymorphism methods. RESULTS With response treated as a continuous variable, the homozygous recessive rs2032582 genotypes (TT) who were simultaneously carriers of a loss-of-function CYP2D6 allele (*4 or *5) responded significantly worse than the rest of the patients. Comparison of genotype frequencies revealed a statistically significant association of the above combination. No significant association between chlorpromazine equivalents and the tested genotypes was detected. CONCLUSION We have detected a possible interaction between ABCB1 and CYP2D6 in affecting response of psychotic patients to drug treatment, in a naturalistic setting.
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Affiliation(s)
- Georgios Papazisis
- Department of Clinical Pharmacology, Faculty of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Antonios Goulas
- 1st Department of Pharmacology, Faculty of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Alexios Sarrigiannidis
- 2nd University Department of Psychiatry, Faculty of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Stavroula Bargiota
- 2nd University Department of Psychiatry, Faculty of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Diomidis Antoniadis
- 2nd University Department of Psychiatry, Faculty of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Nikolaos Raikos
- Department of Forensic Medicine and Toxicology, Faculty of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Emmanouela Basgiouraki
- 1st Department of Pharmacology, Faculty of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Vasileios P Bozikas
- 1st University Department of Psychiatry, Faculty of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Georgios Garyfallos
- 2nd University Department of Psychiatry, Faculty of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
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Ben S, Cooper-DeHoff RM, Flaten HK, Evero O, Ferrara TM, Spritz RA, Monte AA. Multiplex SNaPshot-a new simple and efficient CYP2D6 and ADRB1 genotyping method. Hum Genomics 2016; 10:11. [PMID: 27108086 PMCID: PMC4842286 DOI: 10.1186/s40246-016-0073-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Accepted: 04/12/2016] [Indexed: 12/15/2022] Open
Abstract
Background Reliable, inexpensive, high-throughput genotyping methods are required for clinical trials. Traditional assays require numerous enzyme digestions or are too expensive for large sample volumes. Our objective was to develop an inexpensive, efficient, and reliable assay for CYP2D6 and ADRB1 accounting for numerous polymorphisms including gene duplications. Materials and methods We utilized the multiplex SNaPshot® custom genotype method to genotype CYP2D6 and ADRB1. We compared the method to reference standards genotyped using the Taqman Copy Number Variant Assay followed by pyrosequencing quantification and determined assigned genotype concordance. Results We genotyped 119 subjects. Seven (5.9 %) were found to be CYP2D6 poor metabolizers (PMs), 18 (15.1 %) intermediate metabolizers (IMs), 89 (74.8 %) extensive metabolizers (EMs), and 5 (4.2 %) ultra-rapid metabolizers (UMs). We genotyped two variants in the β1-adrenoreceptor, rs1801253 (Gly389Arg) and rs1801252 (Ser49Gly). The Gly389Arg genotype is Gly/Gly 18 (15.1 %), Gly/Arg 58 (48.7 %), and Arg/Arg 43 (36.1 %). The Ser49Gly genotype is Ser/Ser 82 (68.9 %), Ser/Gly 32 (26.9), and Gly/Gly 5 (4.2 %). The multiplex SNaPshot method was concordant with genotypes in reference samples. Conclusions The multiplex SNaPshot method allows for specific and accurate detection of CYP2D6 genotypes and ADRB1 genotypes and haplotypes. This platform is simple and efficient and suited for high throughput.
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Affiliation(s)
- Songtao Ben
- Human Medical Genetics Program, University of Colorado, Aurora, CO, 80045, USA
| | - Rhonda M Cooper-DeHoff
- Center for Pharmacogenomics, College of Pharmacy, University of Florida, Gainesville, FL, 32610, USA
| | - Hanna K Flaten
- Department of Emergency Medicine, School of Medicine, University of Colorado, 12401 E. 17th Ave, B215, Aurora, CO, 80045, USA
| | - Oghenero Evero
- Department of Emergency Medicine, School of Medicine, University of Colorado, 12401 E. 17th Ave, B215, Aurora, CO, 80045, USA
| | - Tracey M Ferrara
- Human Medical Genetics Program, University of Colorado, Aurora, CO, 80045, USA
| | - Richard A Spritz
- Human Medical Genetics Program, University of Colorado, Aurora, CO, 80045, USA
| | - Andrew A Monte
- Department of Emergency Medicine, School of Medicine, University of Colorado, 12401 E. 17th Ave, B215, Aurora, CO, 80045, USA. .,Rocky Mountain Poison & Drug Center, Denver Health and Hospital Authority, Denver, CO, 80203, USA.
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Okubo M, Narita M, Murayama N, Akimoto Y, Goto A, Yamazaki H. Individual differences in in vitro and in vivo metabolic clearances of the antipsychotic drug olanzapine from non-smoking and smoking Japanese subjects genotyped for cytochrome P4502D6 and flavincontaining monooxygenase 3. Hum Psychopharmacol 2016; 31:83-92. [PMID: 26856397 DOI: 10.1002/hup.2515] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Revised: 11/10/2015] [Accepted: 12/09/2015] [Indexed: 01/01/2023]
Abstract
OBJECTIVE The antipsychotic olanzapine is reportedly metabolized by inducible human cytochrome P450 (CYP) 1A2 and variable copy-number CYP2D6 and polymorphic flavin-containing monooxygenase 3 (FMO3) in different pathways. We investigated individual differences in the metabolite formation and clearance of olanzapine in vitro and in vivo. METHODS Human liver microsomal olanzapine oxidation activities were evaluated, and plasma concentrations of olanzapine were determined in 21 Japanese patients (mean age: 50 years, range: 32-69 years, 14 male and 7 female, including 6 smokers) genotyped for CYP2D6 (*1, *5, and *10) and FMO3 (E158K, C197fsX, R205C, V257M, E308G, and R500X). RESULTS Furafylline (a CYP1A2 inhibitor), quinidine (a CYP2D6 inhibitor), and heat treatment (inactivates FMO3) suppressed liver microsomal metabolic clearance of olanzapine by approximately 30%. Olanzapine N-demethylation and N-oxygenation were found to be catalyzed by CYP1A2 and CYP2D6 and by CYP2D6 and FMO3, respectively, in experiments using liver microsomes and recombinant enzymes. Plasma concentrations and clearance of olanzapine were not affected by CYP2D6 or FMO3 genotypes or smoking behavior. CONCLUSIONS Olanzapine clearance was not affected by CYP2D6 or FMO3 genotypes or smoking behavior as a single factor under the present conditions because olanzapine clearance is mediated by multiple enzymes involved in two major and one minor pathways.
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Affiliation(s)
- Maho Okubo
- Laboratory of Drug Metabolism and Pharmacokinetics, Showa Pharmaceutical University, Machida, Tokyo, Japan
| | - Momoko Narita
- Laboratory of Drug Metabolism and Pharmacokinetics, Showa Pharmaceutical University, Machida, Tokyo, Japan
| | - Norie Murayama
- Laboratory of Drug Metabolism and Pharmacokinetics, Showa Pharmaceutical University, Machida, Tokyo, Japan
| | | | - Akiko Goto
- Tsurugaoka Garden Hospital, Machida, Tokyo, Japan
| | - Hiroshi Yamazaki
- Laboratory of Drug Metabolism and Pharmacokinetics, Showa Pharmaceutical University, Machida, Tokyo, Japan
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9
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Okubo M, Morita S, Murayama N, Akimoto Y, Goto A, Yamazaki H. Individual differences in in vitro and in vivo metabolic clearances of antipsychotic risperidone from Japanese subjects genotyped for cytochrome P450 2D6 and 3A5. Hum Psychopharmacol 2016; 31:93-102. [PMID: 26856541 DOI: 10.1002/hup.2516] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Revised: 10/07/2015] [Accepted: 12/09/2015] [Indexed: 11/06/2022]
Abstract
OBJECTIVE There are conflicting reports regarding the effects of cytochrome P450 (P450, CYP) genotypes on the plasma concentrations of risperidone and its pharmacologically active metabolite, 9-hydroxyrisperidone (paliperidone), in clinical patients. The aim of this study was to investigate individual differences in the metabolic clearance of risperidone in vitro and in vivo. METHODS In vitro liver microsomal risperidone 9-hydroxylation activities and in vivo plasma concentrations of risperidone and paliperidone were investigated in 15 male and 12 female Japanese subjects (mean age 52 years, range: 24-75 years) genotyped for CYP2D6 and CYP3A5. RESULTS CYP2D6 intermediate and poor metabolizers showed significantly lower liver microsomal risperidone 9-hydroxylation activities than extensive metabolizers did at 5 μM of risperidone; this difference was not evident at 50 μM of risperidone. The recombinant CYP3A5 Vmax/Km value for risperidone 9-hydroxylation was 30% that of CYP3A4, and liver microsomes from CYP3A5 expressers had similar risperidone 9-hydroxylation activities to those of CYP3A5 poor expressers. The plasma concentration/dose ratios for risperidone and paliperidone in 27 Japanese patients were not significantly influenced by the CYP2D6 or CYP3A5 genotypes. CONCLUSIONS Individual differences in metabolic clearance of risperidone under the present conditions were not significantly influenced by the genotypes of CYP2D6 or CYP3A5.
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Affiliation(s)
- Maho Okubo
- Laboratory of Drug Metabolism and Pharmacokinetics, Showa Pharmaceutical University, Machida, Tokyo, Japan
| | - Shoko Morita
- Laboratory of Drug Metabolism and Pharmacokinetics, Showa Pharmaceutical University, Machida, Tokyo, Japan
| | - Norie Murayama
- Laboratory of Drug Metabolism and Pharmacokinetics, Showa Pharmaceutical University, Machida, Tokyo, Japan
| | | | - Akiko Goto
- Tsurugaoka Garden Hospital, Machida, Tokyo, Japan
| | - Hiroshi Yamazaki
- Laboratory of Drug Metabolism and Pharmacokinetics, Showa Pharmaceutical University, Machida, Tokyo, Japan
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Okubo M, Murayama N, Miura J, Chiba Y, Yamazaki H. Effects of cytochrome P450 2D6 and 3A5 genotypes and possible coadministered medicines on the metabolic clearance of antidepressant mirtazapine in Japanese patients. Biochem Pharmacol 2015; 93:104-9. [DOI: 10.1016/j.bcp.2014.11.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2014] [Revised: 11/17/2014] [Accepted: 11/19/2014] [Indexed: 10/24/2022]
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