1
|
Qin J, Zhang Y, Zeng J, Song Y, Yan D. 3D spheroid HepaRG and fluorescent biphasic tracer for CYP3A4-mediated antibiotic interaction monitoring in sepsis. Anal Bioanal Chem 2024; 416:4261-4274. [PMID: 38839687 DOI: 10.1007/s00216-024-05363-0] [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: 04/06/2024] [Revised: 05/19/2024] [Accepted: 05/24/2024] [Indexed: 06/07/2024]
Abstract
Cytochrome P450 3A4 (CYP3A4) is a crucial enzyme in the metabolism of xenobiotics, particularly in drug metabolism interactions (DDIs), making it a significant factor in clinical drug use. However, current assay techniques are both laborious and costly, making it difficult to construct a high-throughput monitoring method that can be used in conjunction with the clinic. This poses certain safety hazards for drug combination. Therefore, it is crucial to develop a synchronized monitoring method for the inhibition and induction of CYP3A4. In this study, we utilized 3D culture technology to develop a HepaRG cells spheroid model. The CYP450 and transporter expression, the albumin secretion, and urea synthesis capacity characteristics were analyzed. The NEN probe was utilized as a tracer molecule for CYP3A4. The fluorescence intensity of metabolites was characterized by laser confocal technique to determine the inhibition and expression of CYP3A4 in the HepaRG cell spheroid model by the antibiotics for sepsis. The results indicate that the HepaRG sphere model successfully possessed the physiological phenotype of the liver, which could be used for drug interaction monitoring. Through positive drug testing, NEN probe was able to achieve bidirectional characterization of CYP3A4 induction and inhibition. The monitoring method described in this paper was successfully applied to drug interaction monitoring of commonly used antibiotics in sepsis patients, which is a convenient and rapid monitoring method. The proposed method offers a new strategy for monitoring CYP3A4-mediated drug-drug interactions with a high-throughput assay, which will help to improve the safety of clinical drug combination.
Collapse
Affiliation(s)
- Jia'an Qin
- Beijing Institute of Clinical Pharmacy, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, China
| | - Ying Zhang
- Beijing Institute of Clinical Pharmacy, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, China
| | - Jiayu Zeng
- Beijing Institute of Clinical Pharmacy, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, China
| | - Yingchang Song
- Beijing Institute of Clinical Pharmacy, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, China
| | - Dan Yan
- Beijing Institute of Clinical Pharmacy, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, China.
| |
Collapse
|
2
|
Smith D, He B, Shi J, Zhu HJ, Wang X. Novel Independent Trans- and Cis-Genetic Variants Associated with CYP2D6 Expression and Activity in Human Livers. Drug Metab Dispos 2024; 52:143-152. [PMID: 38050015 PMCID: PMC10801631 DOI: 10.1124/dmd.123.001548] [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: 09/21/2023] [Revised: 11/01/2023] [Accepted: 11/21/2023] [Indexed: 12/06/2023] Open
Abstract
Cytochrome P450 2D6 (CYP2D6) is a critical hepatic drug-metabolizing enzyme in humans, responsible for metabolizing approximately 20%-25% of commonly used medications such as codeine, desipramine, fluvoxamine, paroxetine, and tamoxifen. The CYP2D6 gene is highly polymorphic, resulting in substantial interindividual variability in its catalytic function and the pharmacokinetics and therapeutic outcomes of its substrate drugs. Although many functional CYP2D6 variants have been discovered and validated, a significant portion of the variability in the expression and activity of CYP2D6 remains unexplained. In this study, we performed a genome-wide association study (GWAS) to identify novel variants associated with CYP2D6 protein expression in individual human livers, followed by a conditional analysis to control for the effect of functional CYP2D6 star alleles. We also examined their impact on hepatic CYP2D6 activity. Genotyping on a genome-wide scale was achieved using the Illumina Multi-Ethnic Genotyping Array (MEGA). A data-independent acquisition (DIA)-based proteomics method was used to quantify CYP2D6 protein concentrations. CYP2D6 activity was determined by measuring the dextromethorphan O-demethylation in individual human liver s9 fractions. The GWAS identified 44 single nuclear polymorphisms (SNPs) that are significantly associated with CYP2D6 protein expressions with a P value threshold of 5.0 × 10-7 After the conditional analysis, five SNPs, including the cis-variants rs1807493 and rs1062753 and the trans-variants rs4073010, rs729559, and rs80274432, emerged as independent variants significantly correlated with hepatic CYP2D6 protein expressions. Notably, four of these SNPs, except for rs80274432, also exhibited a significant association with CYP2D6 activities in human livers, suggesting their potential as novel and independent cis- and trans-variants regulating CYP2D6. SIGNIFICANT STATEMENT: Using individual human livers, we identified four novel cis- and trans-pQTLs/aQTLs (protein quantitative trait loci/activity quantitative trait loci) of Cytochrome P450 2D6 (CYP2D6) that are independent from known functional CYP2D6 star alleles. This study connects the CYP2D6 gene expression and activity, enhancing our understanding of the genetic variants associated with CYP2D6 protein expression and activity, potentially advancing our insight into the interindividual variability in CYP2D6 substrate medication response.
Collapse
Affiliation(s)
- Dylan Smith
- Department of Pharmaceutical Sciences, Northeast Ohio Medical University, Rootstown, Ohio (D.S., X.W.); Department of Clinical Pharmacy, University of Michigan, Ann Arbor, Michigan (H.-J.Z.); Department of Computational Medicine and Bioinformatics, University of Michigan Medical School, Ann Arbor, Michigan (B.H.); and Bristol Myers Squibb, Lawrence Township, New Jersey (J.S.)
| | - Bing He
- Department of Pharmaceutical Sciences, Northeast Ohio Medical University, Rootstown, Ohio (D.S., X.W.); Department of Clinical Pharmacy, University of Michigan, Ann Arbor, Michigan (H.-J.Z.); Department of Computational Medicine and Bioinformatics, University of Michigan Medical School, Ann Arbor, Michigan (B.H.); and Bristol Myers Squibb, Lawrence Township, New Jersey (J.S.)
| | - Jian Shi
- Department of Pharmaceutical Sciences, Northeast Ohio Medical University, Rootstown, Ohio (D.S., X.W.); Department of Clinical Pharmacy, University of Michigan, Ann Arbor, Michigan (H.-J.Z.); Department of Computational Medicine and Bioinformatics, University of Michigan Medical School, Ann Arbor, Michigan (B.H.); and Bristol Myers Squibb, Lawrence Township, New Jersey (J.S.)
| | - Hao-Jie Zhu
- Department of Pharmaceutical Sciences, Northeast Ohio Medical University, Rootstown, Ohio (D.S., X.W.); Department of Clinical Pharmacy, University of Michigan, Ann Arbor, Michigan (H.-J.Z.); Department of Computational Medicine and Bioinformatics, University of Michigan Medical School, Ann Arbor, Michigan (B.H.); and Bristol Myers Squibb, Lawrence Township, New Jersey (J.S.)
| | - Xinwen Wang
- Department of Pharmaceutical Sciences, Northeast Ohio Medical University, Rootstown, Ohio (D.S., X.W.); Department of Clinical Pharmacy, University of Michigan, Ann Arbor, Michigan (H.-J.Z.); Department of Computational Medicine and Bioinformatics, University of Michigan Medical School, Ann Arbor, Michigan (B.H.); and Bristol Myers Squibb, Lawrence Township, New Jersey (J.S.)
| |
Collapse
|
3
|
Mechanisms Underlying the Differences in the Pharmacokinetics of Six Active Constituents of Huangqi Liuyi Decoction between Normal and Diabetic Nephropathy Mouse Models. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2022; 2022:2481654. [PMID: 36285162 PMCID: PMC9588345 DOI: 10.1155/2022/2481654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 08/11/2022] [Accepted: 09/23/2022] [Indexed: 11/06/2022]
Abstract
The aim of this study was to explore the mechanisms underlying the differences in the pharmacokinetics of Huangqi Liuyi decoction extract (HQD) under physiological and pathological conditions. The roles of liver cytochrome P450 metabolic enzymes (Cyp450) and small intestinal transporters were also investigated. The cocktail probe drug method was used to investigate the effects of diabetic nephropathy (DN) and HQD on metabolic enzyme activity. The expression levels of liver Cyp450 metabolic enzymes (Cyp1A2, Cyp2C37, Cyp3A11, Cyp2E1, and Cyp2C11) and small intestinal transporters (breast cancer resistance protein (BCRP), P-glycoprotein (P-gp), organic cation transporters (OCTs), and multidrug resistance-associated protein (MRPs) were determined using western blot. Compared to normal mice, the expression of OCT1, OCT2, MRP1, and MRP2 was increased in DN mice, while that of P-gp and BCRP (P < 0.05 and P < 0.001) was inhibited. HQD inhibited expression of Cyp1A2 and Cyp3A11 and increased the expression of P-gp and BCRP in normal mice. In DN mice, HQD induced expression of BCRP and inhibited expression of Cyp2C37, Cyp3A11, OCT2, MRP1, and MRP2. The activity of each Cyp450 enzyme was consistent with changes in expression. The changes in pharmacokinetic parameters of HQD in DN might, in part, be secondary to decreased expression of P-gp and BCRP. HQD varied in regulating transporter activities between health and disease. These findings support careful application of HQD-based treatment in DN, especially in combination with other drugs.
Collapse
|
4
|
Guo J, Xu Y, Chen LJ, Zhang SX, Liou YL, Chen XP, Tan ZR, Zhou HH, Zhang W, Chen Y. Gut microbiota and host Cyp450s co-contribute to pharmacokinetic variability in mice with non-alcoholic steatohepatitis: Effects vary from drug to drug. J Adv Res 2022; 39:319-332. [PMID: 35777915 PMCID: PMC9263650 DOI: 10.1016/j.jare.2021.10.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Revised: 10/09/2021] [Accepted: 10/14/2021] [Indexed: 02/07/2023] Open
Abstract
Drugs’ pharmacokinetics were changed in NASH disease. A systematical research on cocktail drugs in NASH. Gut microbiota can bio-transform some drugs in vitro, and the metabolic rate was different in NASH. The gut microbiota and the host co-contributed the pharmacokinetic variability of drugs in NASH. The degree of influence on pharmacokinetic variability varies from drug to drug.
Introduction Pharmacokinetic variability in disease state is common in clinical practice, but its underlying mechanism remains unclear. Recently, gut microbiota has been considered to be pharmacokinetically equivalent to the host liver. Although some studies have explored the roles of gut microbiota and host Cyp450s in drug pharmacokinetics, few have explored their effects on pharmacokinetic variability, especially in disease states. Objectives In this study, we aim to investigate the effects of gut microbiota and host Cyp450s on pharmacokinetic variability in mice with non-alcoholic steatohepatitis (NASH), and to elucidate the contribution of gut microbiota and host Cyp450s to pharmacokinetic variability in this setting. Methods The pharmacokinetic variability of mice with NASH was explored under intragastric and intravenous administrations of a cocktail mixture of omeprazole, phenacetin, midazolam, tolbutamide, chlorzoxazone, and metoprolol, after which the results were compared with those obtained from the control group. Thereafter, the pharmacokinetic variabilities of all drugs and their relations to the changes in gut microbiota and host Cyp450s were compared and analyzed. Results The exposures of all drugs, except metoprolol, significantly increased in the NASH group under intragastric administration. However, no significant increase in the exposure of all drugs, except tolbutamide, was observed in the NASH group under intravenous administration. The pharmacokinetic variabilities of phenacetin, midazolam, omeprazole, and chlorzoxazone were mainly associated with decreased elimination activity in the gut microbiota. By contrast, the pharmacokinetic variability of tolbutamide was mainly related to the change in the host Cyp2c65. Notably, gut microbiota and host Cyp450s exerted minimal effects on the pharmacokinetic variability of metoprolol. Conclusion Gut microbiota and host Cyp450s co-contribute to the pharmacokinetic variability in mice with NASH, and the degree of contribution varies from drug to drug. The present findings provide new insights into the explanation of pharmacokinetic variability in disease states.
Collapse
Affiliation(s)
- Jing Guo
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, Hunan, China; Institute of Clinical Pharmacology, Central South University, Changsha, Hunan, China; Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, Changsha, Hunan, China; National Clinical Research Center for Geriatric Disorders, Changsha, Hunan, China
| | - Ying Xu
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, Hunan, China; Institute of Clinical Pharmacology, Central South University, Changsha, Hunan, China; Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, Changsha, Hunan, China; National Clinical Research Center for Geriatric Disorders, Changsha, Hunan, China
| | - Li-Jie Chen
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, Hunan, China; Institute of Clinical Pharmacology, Central South University, Changsha, Hunan, China; Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, Changsha, Hunan, China; National Clinical Research Center for Geriatric Disorders, Changsha, Hunan, China
| | - Song-Xia Zhang
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, Hunan, China; Institute of Clinical Pharmacology, Central South University, Changsha, Hunan, China; Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, Changsha, Hunan, China; National Clinical Research Center for Geriatric Disorders, Changsha, Hunan, China
| | - Yu-Ligh Liou
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, Hunan, China; Institute of Clinical Pharmacology, Central South University, Changsha, Hunan, China; Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, Changsha, Hunan, China; National Clinical Research Center for Geriatric Disorders, Changsha, Hunan, China
| | - Xiao-Ping Chen
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, Hunan, China; Institute of Clinical Pharmacology, Central South University, Changsha, Hunan, China; Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, Changsha, Hunan, China; National Clinical Research Center for Geriatric Disorders, Changsha, Hunan, China
| | - Zhi-Rong Tan
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, Hunan, China; Institute of Clinical Pharmacology, Central South University, Changsha, Hunan, China; Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, Changsha, Hunan, China; National Clinical Research Center for Geriatric Disorders, Changsha, Hunan, China
| | - Hong-Hao Zhou
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, Hunan, China; Institute of Clinical Pharmacology, Central South University, Changsha, Hunan, China; Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, Changsha, Hunan, China; National Clinical Research Center for Geriatric Disorders, Changsha, Hunan, China
| | - Wei Zhang
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, Hunan, China; Institute of Clinical Pharmacology, Central South University, Changsha, Hunan, China; Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, Changsha, Hunan, China; National Clinical Research Center for Geriatric Disorders, Changsha, Hunan, China
| | - Yao Chen
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, Hunan, China; Institute of Clinical Pharmacology, Central South University, Changsha, Hunan, China; Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, Changsha, Hunan, China; National Clinical Research Center for Geriatric Disorders, Changsha, Hunan, China.
| |
Collapse
|
5
|
Bansal S, Paine MF, Unadkat JD. Comprehensive Predictions of Cytochrome P450 (P450)-Mediated In Vivo Cannabinoid-Drug Interactions Based on Reversible and Time-Dependent P450 Inhibition in Human Liver Microsomes. Drug Metab Dispos 2022; 50:351-360. [PMID: 35115300 PMCID: PMC11022902 DOI: 10.1124/dmd.121.000734] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2021] [Accepted: 01/25/2022] [Indexed: 11/22/2022] Open
Abstract
We previously reported the unbound reversible (IC50,u) and time-dependent (KI,u) inhibition potencies of cannabidiol (CBD), delta-9-tetrahydrocannabinol (THC), and THC metabolites 11-hydroxy THC (11-OH THC) and 11-nor-9-carboxy-delta-9-THC (11-COOH THC) against the major cytochrome P450 (P450) enzymes (1A2, 2C9, 2C19, 2D6, and 3A). Here, using human liver microsomes, we determined the CYP2A6, 2B6, and 2C8 IC50,u values of the aforementioned cannabinoids and the IC50,u and KI,u of the circulating CBD metabolites 7-hydroxy CBD (7-OH CBD) and 7-carboxy CBD (7-COOH CBD), against all the P450s listed above. The IC50,u of CBD, 7-OH CBD, THC, and 11-OH THC against CYP2B6 was 0.05, 0.34, 0.40, and 0.32 μM, respectively, and against CYP2C8 was 0.28, 1.02, 0.67, and 3.66 μM, respectively. 7-COOH CBD, but not 11-COOH THC, was a weak inhibitor of CYP2B6 and 2C8. All tested cannabinoids except 11-COOH THC were weak inhibitors of CYP2A6. 7-OH CBD inhibited all P450s examined (IC50,u<2.5 μM) except CYP1A2 and inactivated CYP2C19 and CYP3A, with inactivation efficiencies (kinact/KI,u) of 0.10 and 0.14 minutes-1 μM-1, respectively. Using several different static models, we predicted the following maximum pharmacokinetic interactions (affected P450 probe drug and area under the plasma concentration-time curve ratio) between oral CBD (700 mg) and drugs predominantly metabolized by CYP3A (midazolam, 14.8) > 2C9 (diclofenac, 9.6) > 2C19 (omeprazole, 7.3) > 1A2 (theophylline, 4.0) > 2B6 (ticlopidine, 2.2) > 2D6 (dextromethorphan, 2.1) > 2C8 (repaglinide, 1.6). Oral (130 mg) or inhaled (75 mg) THC was predicted to precipitate interactions with drugs predominately metabolized by CYP2C9 (diclofenac, 6.6 or 2.3, respectively) > 3A (midazolam, 1.8) > 1A2 (theophylline, 1.4). In vivo drug interaction studies are warranted to verify these predictions. SIGNIFICANCE STATEMENT: This study, combined with our previous findings, provides for the first time a comprehensive analysis of the potential for cannabidiol, delta-9-tetrahydrocannabinol, and their metabolites to inhibit cytochrome P450 enzymes in a reversible or time-dependent manner. These analyses enabled us to predict the potential of these cannabinoids to produce drug interactions in vivo at clinical or recreational doses.
Collapse
Affiliation(s)
- Sumit Bansal
- Department of Pharmaceutics, University of Washington, Seattle, Washington (S.B., J.D.U.); Department of Pharmaceutical Sciences, College of Pharmacy and Pharmaceutical Sciences, Washington State University, Spokane, Washington (M.F.P.); and Center of Excellence for Natural Product Drug Interaction Research, Spokane, Washington (M.F.P., J.D.U.)
| | - Mary F Paine
- Department of Pharmaceutics, University of Washington, Seattle, Washington (S.B., J.D.U.); Department of Pharmaceutical Sciences, College of Pharmacy and Pharmaceutical Sciences, Washington State University, Spokane, Washington (M.F.P.); and Center of Excellence for Natural Product Drug Interaction Research, Spokane, Washington (M.F.P., J.D.U.)
| | - Jashvant D Unadkat
- Department of Pharmaceutics, University of Washington, Seattle, Washington (S.B., J.D.U.); Department of Pharmaceutical Sciences, College of Pharmacy and Pharmaceutical Sciences, Washington State University, Spokane, Washington (M.F.P.); and Center of Excellence for Natural Product Drug Interaction Research, Spokane, Washington (M.F.P., J.D.U.)
| |
Collapse
|
6
|
Schleiff MA, Crosby S, Blue M, Schleiff BM, Boysen G, Miller GP. CYP2C9 and 3A4 play opposing roles in bioactivation and detoxification of diphenylamine NSAIDs. Biochem Pharmacol 2021; 194:114824. [PMID: 34748821 DOI: 10.1016/j.bcp.2021.114824] [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: 09/01/2021] [Revised: 11/01/2021] [Accepted: 11/02/2021] [Indexed: 11/25/2022]
Abstract
Diphenylamine NSAIDs are taken frequently for chronic pain conditions, yet their use may potentiate hepatotoxicity risks through poorly characterized metabolic mechanisms. Our previous work revealed that seven marketed or withdrawn diphenylamine NSAIDs undergo bioactivation into quinone-species metabolites, whose reaction specificities depended on halogenation and the type of acidic group on the diphenylamine. Herein, we identified cytochromes P450 responsible for those bioactivations, determined reaction specificities, and estimated relative contributions of enzymes to overall hepatic bioactivations and detoxifications. A qualitative activity screen revealed CYP2C8, 2C9, 2C19, and 3A4 played roles in drug bioactivation. Subsequent steady-state studies with recombinant CYPs recapitulated the importance of halogenation and acidic group type on bioactivations but importantly, showed patterns unique to each CYP. CYP2C9, 2C19 and 3A4 bioactivated all NSAIDs with CYP2C9 dominating all possible bioactivation pathways. For each CYP, specificities for overall oxidative metabolism were not impacted significantly by differences in NSAID structures but the values themselves differed among the enzymes such that CYP2C9 and 3A4 were more efficient than others. When considering hepatic CYP abundance, CYP2C9 almost exclusively accounted for diphenylamine NSAID bioactivations, whereas CYP3A4 provided a critical counterbalance favoring their overall detoxification. Preference for either outcome would depend on molecular structures favoring metabolism by the CYPs as well as the influence of clinical factors altering their expression and/or activity. While focused on NSAIDs, these findings have broader implications on bioactivation risks given the expansion of the diphenylamine scaffold to other drug classes such as targeted cancer therapeutics.
Collapse
Affiliation(s)
- Mary Alexandra Schleiff
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, United States
| | - Samantha Crosby
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, United States
| | - Madison Blue
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, United States
| | - Benjamin Mark Schleiff
- Independent Researcher, University of Arkansas for Medical Sciences, Little Rock, AR 72205, United States
| | - Gunnar Boysen
- Department of Environmental and Occupational Health, University of Arkansas for Medical Sciences, Little Rock, AR 72205, United States
| | - Grover Paul Miller
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, United States.
| |
Collapse
|
7
|
Barnette DA, Schleiff MA, Datta A, Flynn N, Swamidass SJ, Miller GP. Meloxicam methyl group determines enzyme specificity for thiazole bioactivation compared to sudoxicam. Toxicol Lett 2020; 338:10-20. [PMID: 33253783 DOI: 10.1016/j.toxlet.2020.11.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 11/12/2020] [Accepted: 11/17/2020] [Indexed: 02/08/2023]
Abstract
Meloxicam is a thiazole-containing NSAID that was approved for marketing with favorable clinical outcomes despite being structurally similar to the hepatotoxic sudoxicam. Introduction of a single methyl group on the thiazole results in an overall lower toxic risk, yet the group's impact on P450 isozyme bioactivation is unclear. Through analytical methods, we used inhibitor phenotyping and recombinant P450s to identify contributing P450s, and then measured steady-state kinetics for bioactivation of sudoxicam and meloxicam by the recombinant P450s to determine relative efficiencies. Experiments showed that CYP2C8, 2C19, and 3A4 catalyze sudoxicam bioactivation, and CYP1A2 catalyzes meloxicam bioactivation, indicating that the methyl group not only impacts enzyme affinity for the drugs, but also alters which isozymes catalyze the metabolic pathways. Scaling of relative P450 efficiencies based on average liver concentration revealed that CYP2C8 dominates the sudoxicam bioactivation pathway and CYP2C9 dominates meloxicam detoxification. Dominant P450s were applied for an informatics assessment of electronic health records to identify potential correlations between meloxicam drug-drug interactions and drug-induced liver injury. Overall, our findings provide a cautionary tale on assumed impacts of even simple structural modifications on drug bioactivation while also revealing specific targets for clinical investigations of predictive factors that determine meloxicam-induced idiosyncratic liver injury.
Collapse
Affiliation(s)
- Dustyn A Barnette
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, 4301 W Markham St, Little Rock, AR, 72205, United States
| | - Mary A Schleiff
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, 4301 W Markham St, Little Rock, AR, 72205, United States
| | - Arghya Datta
- Department of Pathology and Immunology, 660 S Euclid Ave, Washington University, St. Louis, MO, 63130, United States
| | - Noah Flynn
- Department of Pathology and Immunology, 660 S Euclid Ave, Washington University, St. Louis, MO, 63130, United States
| | - S Joshua Swamidass
- Department of Pathology and Immunology, 660 S Euclid Ave, Washington University, St. Louis, MO, 63130, United States
| | - Grover P Miller
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, 4301 W Markham St, Little Rock, AR, 72205, United States.
| |
Collapse
|
8
|
Jiang Z, Gu L, Liang X, Cao B, Zhang J, Guo X. The Effect of Selenium on CYP450 Isoform Activity and Expression in Pigs. Biol Trace Elem Res 2020; 196:454-462. [PMID: 31721080 DOI: 10.1007/s12011-019-01945-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Accepted: 10/18/2019] [Indexed: 01/08/2023]
Abstract
Selenium is an essential nutrient in diets; however, the effects of selenium on enzyme metabolic activation are not currently clear. Cytochromes P450 (CYP450) are major phase I metabolic enzymes involved in the biotransformation of xenobiotics and endogenous compounds to form electrophilic reactive metabolites. To investigate the effect of selenium on CYP450 isoform activity, the Landrace pigs were divided into three groups: the control group (containing Se 0.15 mg/kg), the Se-deficient group (Se 0.03 mg/kg), and the Se-supply group (Se 0.35 mg/kg). After 1 week of administration, a mixed solution (20 mg/kg of dextromethorphan, phenacetin, chlorzoxazone, and 10 mg/kg of testosterone in a CMC-Na solution) was intravenously injected into all pigs. The mixed solution content and pharmacokinetic parameters were assayed by HPLC and DAS, respectively. To investigate the effect of selenium on CYP450 isoform expression, RNA-Seq analysis, Western boltting, and qPCR were used. Results showed that Se-supply group significantly increased the activity and expression of CYP1A2 and CYP2D25, and decreased CYP3A29. Se-deficient group decreased the activity of CYP1A2, CYP2D25, and CYP2E1. These results demonstrated that selenium content affecting the activity or expression of the CYP450 isoform may lead to a food-drug interaction.
Collapse
Affiliation(s)
- Zhihui Jiang
- Henan Joint International Research Laboratory of Veterinary Biologics Research and Application, Anyang Institute of Technology, Anyang, 455000, Henan, China
| | - Lingbiao Gu
- Henan Joint International Research Laboratory of Veterinary Biologics Research and Application, Anyang Institute of Technology, Anyang, 455000, Henan, China
| | - Xiuli Liang
- Henan Joint International Research Laboratory of Veterinary Biologics Research and Application, Anyang Institute of Technology, Anyang, 455000, Henan, China
| | - Baorui Cao
- Henan Joint International Research Laboratory of Veterinary Biologics Research and Application, Anyang Institute of Technology, Anyang, 455000, Henan, China
| | - Jingmiao Zhang
- Henan Joint International Research Laboratory of Veterinary Biologics Research and Application, Anyang Institute of Technology, Anyang, 455000, Henan, China
| | - Xiao Guo
- Henan Joint International Research Laboratory of Veterinary Biologics Research and Application, Anyang Institute of Technology, Anyang, 455000, Henan, China.
- College of Food and Biological Engineering, Anyang Institute of Technology, Huang he Road 22, Anyang, 455000, Henan, China.
| |
Collapse
|
9
|
Bansal S, Maharao N, Paine MF, Unadkat JD. Predicting the Potential for Cannabinoids to Precipitate Pharmacokinetic Drug Interactions via Reversible Inhibition or Inactivation of Major Cytochromes P450. Drug Metab Dispos 2020; 48:1008-1017. [PMID: 32587099 DOI: 10.1124/dmd.120.000073] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Accepted: 06/01/2020] [Indexed: 12/24/2022] Open
Abstract
Cannabis is used for both recreational and medicinal purposes. The most abundant constituents are the cannabinoids - cannabidiol (CBD, nonpsychoactive) and (-)-trans-Δ9-tetrahydrocannabinol (THC, psychoactive). Both have been reported to reversibly inhibit or inactivate cytochrome P450 (CYPs) enzymes. However, the low aqueous solubility, microsomal protein binding, and nonspecific binding to labware were not considered, potentially leading to an underestimation of CYPs inhibition potency. Therefore, the binding-corrected reversible (IC50,u) and irreversible (K I,u ) inhibition potency of each cannabinoid toward major CYPs were determined. The fraction unbound of CBD and THC in the incubation mixture was 0.12 ± 0.04 and 0.05 ± 0.02, respectively. The IC50,u for CBD toward CYP1A2, 2C9, 2C19, 2D6, and 3A was 0.45 ± 0.17, 0.17 ± 0.03, 0.30 ± 0.06, 0.95 ± 0.50, and 0.38 ± 0.11 µM, respectively; the IC50,u for THC was 0.06 ± 0.02, 0.012 ± 0.001, 0.57 ± 0.22, 1.28 ± 0.25, and 1.30 ± 0.34 µM, respectively. Only CBD showed time-dependent inactivation (TDI) of CYP1A2, 2C19, and CYP3A, with inactivation efficiencies (k inact/K I,u) of 0.70 ± 0.34, 0.11 ± 0.06, and 0.14 ± 0.04 minutes-1 µM-1, respectively. A combined (reversible inhibition and TDI) mechanistic static model populated with these data predicted a moderate to strong pharmacokinetic interaction risk between orally administered CBD and drugs extensively metabolized by CYP1A2/2C9/2C19/2D6/3A and between orally administered THC and drugs extensively metabolized by CYP1A2/2C9/3A. These predictions will be extended to a dynamic model using physiologically based pharmacokinetic modeling and simulation and verified with a well-designed clinical cannabinoid-drug interaction study. SIGNIFICANCE STATEMENT: This study is the first to consider the impact of limited aqueous solubility, nonspecific binding to labware, or extensive binding to incubation protein shown by cannabidiol (CBD) and delta-9-tetrahydrocannabinol (THC) on their true cytochrome P450 inhibitory potency. A combined mechanistic static model predicted a moderate to strong pharmacokinetic interaction risk between orally administered CBD and drugs extensively metabolized by CYP1A2, 2C9, 2C19, 2D6, or 3A and between orally administered THC and drugs extensively metabolized by CYP1A2, 2C9, or 3A.
Collapse
Affiliation(s)
- Sumit Bansal
- Department of Pharmaceutics, University of Washington, Seattle, Washington (S.B., N.M., J.D.U.); Department of Pharmaceutical Sciences, College of Pharmacy and Pharmaceutical Sciences, Washington State University, Spokane, Washington (M.F.P.); and Center of Excellence for Natural Product Drug Interaction Research, Spokane, Washington (M.F.P., J.D.U.)
| | - Neha Maharao
- Department of Pharmaceutics, University of Washington, Seattle, Washington (S.B., N.M., J.D.U.); Department of Pharmaceutical Sciences, College of Pharmacy and Pharmaceutical Sciences, Washington State University, Spokane, Washington (M.F.P.); and Center of Excellence for Natural Product Drug Interaction Research, Spokane, Washington (M.F.P., J.D.U.)
| | - Mary F Paine
- Department of Pharmaceutics, University of Washington, Seattle, Washington (S.B., N.M., J.D.U.); Department of Pharmaceutical Sciences, College of Pharmacy and Pharmaceutical Sciences, Washington State University, Spokane, Washington (M.F.P.); and Center of Excellence for Natural Product Drug Interaction Research, Spokane, Washington (M.F.P., J.D.U.)
| | - Jashvant D Unadkat
- Department of Pharmaceutics, University of Washington, Seattle, Washington (S.B., N.M., J.D.U.); Department of Pharmaceutical Sciences, College of Pharmacy and Pharmaceutical Sciences, Washington State University, Spokane, Washington (M.F.P.); and Center of Excellence for Natural Product Drug Interaction Research, Spokane, Washington (M.F.P., J.D.U.)
| |
Collapse
|
10
|
Davis MA, Barnette DA, Flynn NR, Pidugu AS, Swamidass SJ, Boysen G, Miller GP. CYP2C19 and 3A4 Dominate Metabolic Clearance and Bioactivation of Terbinafine Based on Computational and Experimental Approaches. Chem Res Toxicol 2019; 32:1151-1164. [PMID: 30925039 DOI: 10.1021/acs.chemrestox.9b00006] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Lamisil (terbinafine) is an effective, widely prescribed antifungal drug that causes rare idiosyncratic hepatotoxicity. The proposed toxic mechanism involves a reactive metabolite, 6,6-dimethyl-2-hepten-4-ynal (TBF-A), formed through three N-dealkylation pathways. We were the first to characterize them using in vitro studies with human liver microsomes and modeling approaches, yet knowledge of the individual enzymes catalyzing reactions remained unknown. Herein, we employed experimental and computational tools to assess terbinafine metabolism by specific cytochrome P450 isozymes. In vitro inhibitor phenotyping studies revealed six isozymes were involved in one or more N-dealkylation pathways. CYP2C19 and 3A4 contributed to all pathways, and so, we targeted them for steady-state analyses with recombinant isozymes. N-Dealkylation yielding TBF-A directly was catalyzed by CYP2C19 and 3A4 similarly. Nevertheless, CYP2C19 was more efficient than CYP3A4 at N-demethylation and other steps leading to TBF-A. Unlike microsomal reactions, N-denaphthylation was surprisingly efficient for CYP2C19 and 3A4, which was validated by controls. CYP2C19 was the most efficient among all reactions. Nonetheless, CYP3A4 was more selective at steps leading to TBF-A, making it more effective in terbinafine bioactivation based on metabolic split ratios for competing pathways. Model predictions did not extrapolate to quantitative kinetic constants, yet some results for CYP3A4 and CYP2C19 agreed qualitatively with preferred reaction steps and pathways. Clinical data on drug interactions support the CYP3A4 role in terbinafine metabolism, while CYP2C19 remains understudied. Taken together, knowledge of P450s responsible for terbinafine metabolism and TBF-A formation provides a foundation for investigating and mitigating the impact of P450 variations in toxic risks posed to patients.
Collapse
Affiliation(s)
- Mary A Davis
- Department of Biochemistry and Molecular Biology , University of Arkansas for Medical Sciences , Little Rock , Arkansas 72205 , United States
| | - Dustyn A Barnette
- Department of Biochemistry and Molecular Biology , University of Arkansas for Medical Sciences , Little Rock , Arkansas 72205 , United States
| | - Noah R Flynn
- Department of Pathology and Immunology , Washington University , St. Louis , Missouri 63130 , United States
| | - Anirudh S Pidugu
- Department of Neuroscience and Behavioral Biology , Emory University , Atlanta , Georgia 30322 , United States
| | - S Joshua Swamidass
- Department of Pathology and Immunology , Washington University , St. Louis , Missouri 63130 , United States
| | - Gunnar Boysen
- Department of Environmental and Occupational Health , University of Arkansas for Medical Sciences , Little Rock , Arkansas 72205 , United States
| | - Grover P Miller
- Department of Biochemistry and Molecular Biology , University of Arkansas for Medical Sciences , Little Rock , Arkansas 72205 , United States
| |
Collapse
|
11
|
Panax ginseng Inhibits Metabolism of Diester Alkaloids by Downregulating CYP3A4 Enzyme Activity via the Pregnane X Receptor. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2019; 2019:3508658. [PMID: 31057647 PMCID: PMC6463675 DOI: 10.1155/2019/3508658] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 02/22/2019] [Accepted: 03/05/2019] [Indexed: 01/08/2023]
Abstract
To investigate the effects of P. ginseng C.A. Mey (P. ginseng) on the metabolism of diester alkaloids and explore the potential mechanism. P. ginseng was administered orally to rats for 7 days, after which liver microsome samples were prepared and then incubated with diester alkaloids. Ultra-high performance liquid chromatography-quadrupole time-of-flight mass spectrometry was used to determinate the concentration of diester alkaloids to calculate the clearance rate. The cocktail method was used to evaluate the effects of oral administration of P. ginseng extracts on the activities of cytochrome P450 (CYP) isoforms in rats through the changes in the pharmacokinetic parameters of the probe drugs. The protein and gene expression of CYP3A2 and pregnane X receptor (PXR) in rats were evaluated by western blotting and quantitative PCR. The specific enzyme inhibitor method and human recombinant enzyme method were used to identify the involvement of sub-CYPs in the metabolism of diester alkaloids in human liver microsomes (HLMs). The clearances of aconitine, mesaconitine, and hypaconitine in the P. ginseng groups were lower than those of the control group. The areas under the curve of midazolam were 2.37 ± 1.05, 4.96 ± 0.51, and 6.23 ± 1.30 mg·L-1·h for the low-, medium-, and high-dose P. ginseng groups, respectively, which were higher than that of the control (2.23 ± 0.64 mg·L-1·h). The clearances of midazolam for the medium- (1.87 ± 0.16 L·h-1·kg-1) and high-dose (1.60 ± 0.34 L·h-1·kg-1) P. ginseng groups were lower than that of the control group (4.66 ± 1.43 L·h-1·kg-1). After exposure to P. ginseng extracts, the gene and protein expression levels of CYP3A4 and PXR were decreased. The hepatic metabolism rates of aconitine, mesaconitine, and hypaconitine in HLMs were decreased to 60.37%, 21.67%, and 10.11%, respectively, when incubated with ketoconazole, a specific inhibitor for CYP3A. The kinetic plots indicated that the KM and V max values of CYP3A4 were 10.08 ± 3.26 μM and 0.12 ± 0.01nmol·mg protein-1·min-1 for aconitine, 131.3 ± 99.75 μM and 0.73 ± 0.44 nmol·mg protein-1·min-1 for mesaconitine, and 17.05 ± 9.70 μM and 0.16 ± 0.04 nmol·mg protein-1·min-1 for hypaconitine, respectively. The in vitro mean intrinsic clearance rates by CYP3A4 were 0.0119, 0.0056, and 0.0091 mL·nmol CYP-1·min-1 for aconitine, mesaconitine, and hypaconitine, respectively. Therefore we implied that P. ginseng inhibited the metabolism of diester alkaloids in vitro and decreased the CYP3A4 enzyme activity as well as the gene and protein expression of CYP3A4 and PXR in vivo. CYP3A4 had a larger effect on diester alkaloid metabolism than the other human CYP isoforms, CYP1A2, CYP2C9, and CYP2E1.
Collapse
|
12
|
The Inhibitory Effect of Flavonoid Aglycones on the Metabolic Activity of CYP3A4 Enzyme. Molecules 2018; 23:molecules23102553. [PMID: 30301254 PMCID: PMC6222669 DOI: 10.3390/molecules23102553] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Revised: 09/29/2018] [Accepted: 10/05/2018] [Indexed: 01/08/2023] Open
Abstract
Flavonoids are natural compounds that have been extensively studied due to their positive effects on human health. There are over 4000 flavonoids found in higher plants and their beneficial effects have been shown in vitro as well as in vivo. However, data on their pharmacokinetics and influence on metabolic enzymes is scarce. The aim of this study was to focus on possible interactions between the 30 most commonly encountered flavonoid aglycones on the metabolic activity of CYP3A4 enzyme. 6β-hydroxylation of testosterone was used as marker reaction of CYP3A4 activity. Generated product was determined by HPLC coupled with diode array detector. Metabolism and time dependence, as well as direct inhibition, were tested to determine if inhibition was reversible and/or irreversible. Out of the 30 flavonoids tested, 7 significantly inhibited CYP3A4, most prominent being acacetin that inhibited 95% of enzyme activity at 1 µM concentration. Apigenin showed reversible inhibition, acacetin, and chrysin showed combined irreversible and reversible inhibition while chrysin dimethylether, isorhamnetin, pinocembrin, and tangeretin showed pure irreversible inhibition. These results alert on possible flavonoid–drug interactions on the level of CYP3A4.
Collapse
|
13
|
Tarantino G, Capone D, Contaldi P, Gianno A, Teresa M, Tufano A. Phenotyping of CYP 4501A2 Activity by Total Overnight Salivary Caffeine Assessment (TOSCA) in Patients on Warfarin Treatment: A Cross-Sectional Study. Clin Appl Thromb Hemost 2018; 24:928-935. [PMID: 28992765 PMCID: PMC6714717 DOI: 10.1177/1076029617733040] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Warfarin is an oral anticoagulant, commonly used for primary and secondary prevention of venous and arterial thromboembolic events. The drug is characterized by narrow therapeutic index, widespread individual variability in clinical response, and high rates of adverse events, particularly bleeding complications. For these reasons, a close monitoring of the dosage, using the frequent assessment of coagulation status by means of International Normalized Ratio value, is mandatory. Warfarin is metabolized by hepatic cytochrome P-450. High CYP 450 activity may lead to low drug concentration and requires high warfarin doses to reach efficacy; conversely, low CYP 450 activity is responsible for high drug concentration and needs for low doses to avoid potential toxicity risks. The major isoforms of CYP involved in the metabolism of warfarin sodium are CYP1A2 (for the R-warfarin) and CYP2C9 (for the S-warfarin). The probes for testing CYP1A2 are phenacetin and caffeine while for CYP2C9 tolbutamide. Although S-warfarin has major activity, it was decided to exclude its phenotyping for ethical issues, being mandatory to use a drug (tolbutamide). Instead, it was chosen to test the 1A2 isoform, as the activity of the latter isoform could be investigated by using caffeine contained in the caffeinated beverages. Specifically, a single-point concentration of salivary caffeine (total overnight salivary caffeine assessment [TOSCA]) after an overnight period of the caffeinated beverages abstinence was utilized. In the present study, 75 nonsmoker patients regularly receiving warfarin sodium were enrolled. The results have showed a significant association of the warfarin dose with TOSCA values (coefficient = -0.15, standard error = 0.04, 95% confidence interval = -0.24 to -0.06, t = -3.23, P = .002). In conclusion, the phenotyping of CYP1A2 by TOSCA could be useful, if further proven, to help manage patients on warfarin in order to lessen severe adverse events.
Collapse
Affiliation(s)
- Giovanni Tarantino
- Department of Clinical Medicine and Surgery, “Federico II” University, Naples, Italy
| | - Domenico Capone
- Integrated Care Department of Clinical Neurosciences, Anesthesiology and Drug-Use, Section of Clinical Pharmacology, “Federico II” University, Naples, Italy
| | - Paola Contaldi
- Department of Clinical Medicine and Surgery, “Federico II” University, Naples, Italy
| | - Adriana Gianno
- Department of Clinical Medicine and Surgery, “Federico II” University, Naples, Italy
| | - Mosca Teresa
- Integrated Care Department of Clinical Neurosciences, Anesthesiology and Drug-Use, Section of Clinical Pharmacology, “Federico II” University, Naples, Italy
| | - Antonella Tufano
- Department of Clinical Medicine and Surgery, “Federico II” University, Naples, Italy
| |
Collapse
|
14
|
Song W, Yu L, Peng Z. Dataset from proteomic analysis of human liver, lung, kidney and intestine microsomes. Data Brief 2018; 18:831-834. [PMID: 29900246 PMCID: PMC5996730 DOI: 10.1016/j.dib.2018.03.124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 03/12/2018] [Accepted: 03/27/2018] [Indexed: 11/26/2022] Open
Abstract
We provide detailed datasets from our analysis of proteins that are identified in human liver, lung, kidney and intestine microsomes by MS-based proteomics. Also included is a set of CYP450 enzymes and microsomal glutathione-S-transferase (MGSTs) activities in human liver microsomes. The data presented in this paper support the research article "Targeted label-free approach for quantification of epoxide hydrolase and glutathione transferases in microsomes" (Song et al., 2015) [1]. We expect that the data will contribute to the study of metabolism enzymes.
Collapse
Affiliation(s)
- Wei Song
- Hubei Province Key Laboratory of Biotechnology of Chinese Traditional Medicine, Hubei University, Wuhan 430062, China.,Department of Life Science, Hubei University, Wuhan 430062, China
| | - Longjiang Yu
- Institute of Resource Biology and Biotechnology, Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Zhihong Peng
- Hubei Province Key Laboratory of Biotechnology of Chinese Traditional Medicine, Hubei University, Wuhan 430062, China.,Department of Life Science, Hubei University, Wuhan 430062, China
| |
Collapse
|
15
|
LC-MS/MS method for the simultaneous quantification of intestinal CYP and UGT activity. J Pharm Biomed Anal 2018; 155:194-201. [PMID: 29649788 DOI: 10.1016/j.jpba.2018.04.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2017] [Revised: 04/02/2018] [Accepted: 04/03/2018] [Indexed: 01/18/2023]
Abstract
Many orally administered drugs are subject to first-pass metabolism by cytochrome P450 (CYP) enzymes and uridine 5'-diphospho-glucuronosyltransferases (UGT). While their hepatic activity is well characterized, respective information about the intestine are very scare due to limited availability of tissue, very low microsomal protein content and the heterogeneity of the individual segments. As a consequence, determination of enzyme kinetic parameters is challenging. It was therefore the aim of this study to develop a sensitive liquid chromatography tandem mass spectrometry method for the simultaneous quantification of CYP and UGT metabolites formed by clinically relevant intestinal biotransformation enzymes: 4-hydroxydiclofenac (CYP2C9), 5-hydroxyomeprazole (CYP2C19), dextrorphan (CYP2D6), 1-hydroxymidazolam (CYP3A), ezetimibe glucuronide (UGT1A) and naloxone glucuronide (UGT2B7). After precipitation of microsomal protein with acetonitrile, analytes were chromatographically separated on a C18 column with gradient elution using acetonitrile and water, both containing 0.1% formic acid and detected with a tandem mass spectrometer operating in positive mode with electron spray ionization. The assay was validated according to current bioanalytical guidelines regarding linearity, accuracy, precision, stability, recovery and matrix effects spanning an analytical range from 1 to 200 nmol/L for each analyte. The developed method was successfully applied to a proof of concept experiment using pooled human jejunal microsomes (50 μg protein/mL) in order to determine enzyme kinetic parameters. Formation of all monitored metabolites followed Michaelis-Menten kinetics and allowed calculation of KM and Vmax values. The developed method may be useful for characterization of enzymatic activity in the human intestine which may allow more precise insights into the intestinal contribution to first pass metabolism of drugs.
Collapse
|
16
|
Jacquot Y, Spaggiari D, Schappler J, Lesniewska E, Rudaz S, Leclercq G. ERE-dependent transcription and cell proliferation: Independency of these two processes mediated by the introduction of a sulfone function into the weak estrogen estrothiazine. Eur J Pharm Sci 2017; 109:169-181. [PMID: 28754571 DOI: 10.1016/j.ejps.2017.07.026] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Revised: 07/18/2017] [Accepted: 07/24/2017] [Indexed: 02/07/2023]
Abstract
The synthetic coumestrol derivative 6,12-dihydro-3-methoxy-1-benzopyrano[3,4-b][1,4]benzothiazin-6-one (estrothiazine, ESTZ) has been identified as a weak estrogen receptor α (ERα) ligand unable to compete with tritiated estradiol. The biological activity of this compound, supported by a methoxy group in position 3, seems mainly to result from its capacity to activate ERα dimerization without any participation of coactivators. In support of this view and referring to conventional estrogens, an ESTZ metabolism study conducted with hepatic human microsomes failed to provide any argument in favour of an estrogenic activity dependent on a metabolic conversion of the compound into hydroxylated metabolites with strong receptor activation ability. Interestingly, we failed to detect any oxidation of the sulfur atom of the compound. In the light of pharmacological literature data concerning sulfonylation, we assessed ERα-mediated activities generated by two sulfonylated ESTZ derivatives in which the methoxy group that plays a key role in its mechanism of action was maintained or removed. Sulfonylated ESTZ, even in its demethoxylated form, induced ERE-mediated transcriptions in MCF-7 breast cancer cells, without affecting the ERα turnover rate. In contrast to ESTZ, this compound failed to enhance the proliferation of ERα-positive breast cancer cells, suggesting that its sulfone function confers upon the receptor a capacity to elicit some of the known characteristics associated with estrogenic responses. Moreover, we demonstrated that this sulfone may contribute to ERα dimerization without any requirement of the methoxy group. Nevertheless, it seems to cooperate with this group, as reflected by a weak ability of the sulfonylated form of ESTZ to compete with tritiated estradiol for ERα-binding. Assessment of the docking of this compound within the ligand-binding domain of the receptor by molecular dynamics provided an explanation for this observation since the sulfone is engulfed in a small hydrophobic pocket involving the residues Leu-346, Leu-349, Ala-350 and Leu-384, also known to recruit coactivators. This work not only reports the sulfone functional group as a pharmacophore for estrogenic activity, but also opens new perspectives for the development of estrogenic molecules with therapeutic purpose and devoid of proliferative side effects.
Collapse
Affiliation(s)
- Yves Jacquot
- Sorbonne University - UPMC Univ Paris 06, Ecole Normale Supérieure, PSL Research University, Département de Chimie, CNRS UMR 7203 LBM, 4 Place Jussieu, 75005 Paris, France.
| | - Dany Spaggiari
- Section des Sciences Pharmaceutiques (EPGL), University of Geneva, University of Lausanne, rue Michel Servet 1, 1211 Geneva 4, Switzerland
| | - Julie Schappler
- Section des Sciences Pharmaceutiques (EPGL), University of Geneva, University of Lausanne, rue Michel Servet 1, 1211 Geneva 4, Switzerland
| | - Eric Lesniewska
- ICB, CNRS UMR 6303, University de Bourgogne Franche-Comté, 9, avenue Savary, 21078 Dijon, France
| | - Serge Rudaz
- Section des Sciences Pharmaceutiques (EPGL), University of Geneva, University of Lausanne, rue Michel Servet 1, 1211 Geneva 4, Switzerland
| | - Guy Leclercq
- Laboratory J.C. Heuson de Cancérologie Mammaire, Institut Jules Bordet, 1, rue Héger Bordet, Brussels 1000, Belgium.
| |
Collapse
|
17
|
Helvenstein M, Hambÿe S, Blankert B. Hepatocyte-based flow analytical bioreactor for online xenobiotics metabolism bioprediction. Nanobiomedicine (Rij) 2017; 4:1849543517702898. [PMID: 29942392 PMCID: PMC6009796 DOI: 10.1177/1849543517702898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Accepted: 02/25/2017] [Indexed: 11/23/2022] Open
Abstract
The research for new in vitro screening tools for predictive metabolic profiling of drug candidates is of major interest in the pharmaceutical field. The main motivation is to avoid late rejection in drug development and to deliver safer drugs to the market. Thanks to the superparamagnetic properties of iron oxide nanoparticles, a flow bioreactor has been developed which is able to perform xenobiotic metabolism studies. The selected cell line (HepaRG) maintained its metabolic competencies once iron oxide nanoparticles were internalized. Based on magnetically trapped cells in a homemade immobilization chamber, through which a flow of circulating phase was injected to transport nutrients and/or the studied xenobiotic, off-line and online (when coupled to a high-performance liquid chromatography chain) metabolic assays were developed using diclofenac as a reference compound. The diclofenac demonstrated a similar metabolization profile chromatogram, both with the newly developed setup and with the control situation. Highly versatile, this pioneering and innovative instrumental design paves the way for a new approach in predictive metabolism studies.
Collapse
Affiliation(s)
- M Helvenstein
- Laboratory of Pharmaceutical Analysis, Faculty of Medicine and Pharmacy, Research Institute for Health Sciences and Technology, University of Mons - UMONS, Mons, Belgium
| | - S Hambÿe
- Laboratory of Pharmaceutical Analysis, Faculty of Medicine and Pharmacy, Research Institute for Health Sciences and Technology, University of Mons - UMONS, Mons, Belgium
| | - B Blankert
- Laboratory of Pharmaceutical Analysis, Faculty of Medicine and Pharmacy, Research Institute for Health Sciences and Technology, University of Mons - UMONS, Mons, Belgium
| |
Collapse
|
18
|
Li H, Clarke JD, Dzierlenga AL, Bear J, Goedken MJ, Cherrington NJ. In vivo cytochrome P450 activity alterations in diabetic nonalcoholic steatohepatitis mice. J Biochem Mol Toxicol 2017; 31:10.1002/jbt.21840. [PMID: 27712037 PMCID: PMC5426479 DOI: 10.1002/jbt.21840] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Revised: 08/30/2016] [Accepted: 09/01/2016] [Indexed: 12/17/2022]
Abstract
Nonalcoholic steatohepatitis (NASH) has been identified as a source of significant interindividual variation in drug metabolism. A previous ex vivo study demonstrated significant changes in hepatic Cytochrome P450 (CYP) activity in human NASH. This study evaluated the in vivo activities of multiple CYP isoforms simultaneously in prominent diabetic NASH mouse models. The pharmacokinetics of CYP selective substrates: caffeine, losartan, and omeprazole changed significantly in a diabetic NASH mouse model, indicating attenuation of the activity of Cyp1a2 and Cyp2c29, respectively. Decreased mRNA expression of Cyp1a2 and Cyp2c29, as well as an overall decrease in CYP protein expression, was found in the diabetic NASH mice. Overall, these data suggest that the diabetic NASH model only partially recapitulates the human ex vivo CYP alteration pattern. Therefore, in vivo determination of the effects of NASH on CYP activity should be conducted in human, and more appropriate models are required for future drug metabolism studies in NASH.
Collapse
Affiliation(s)
- Hui Li
- Department of Pharmacology and Toxicology, University of Arizona, Tucson, AZ 85721, USA
| | - John D. Clarke
- Department of Pharmacology and Toxicology, University of Arizona, Tucson, AZ 85721, USA
| | - Anika L. Dzierlenga
- Department of Pharmacology and Toxicology, University of Arizona, Tucson, AZ 85721, USA
| | - John Bear
- Statistical Consulting Lab, Univeristy of Arizona, Tucson, AZ, 85721, USA
| | - Michael J. Goedken
- Translational Sciences, Research Pathology Services, Rutgers University, New Brunswick, NJ 08854, USA
| | - Nathan J. Cherrington
- Department of Pharmacology and Toxicology, University of Arizona, Tucson, AZ 85721, USA
| |
Collapse
|
19
|
Oh HA, Lee H, Kim D, Jung BH. Development of GC-MS based cytochrome P450 assay for the investigation of multi-herb interaction. Anal Biochem 2016; 519:71-83. [PMID: 28007398 DOI: 10.1016/j.ab.2016.12.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Revised: 11/09/2016] [Accepted: 12/17/2016] [Indexed: 12/11/2022]
Abstract
As drug interactions with cytochrome P450 enzymes become increasingly important in the field of drug discovery, a high-throughput screening method for analysing the effects of a drug is needed. We have developed a simple and rapid simultaneous analytical method using a cocktail approach for measuring the activities of seven cytochrome P450 enzymes (CYP1A2, CYP2A6, CYP2C9, CYP2C19, CYP2D6, CYP2E1 and CYP3A4). Human liver microsomes were used as a source for the seven cytochrome P450 enzymes, and a gas chromatography-mass spectrometry (GC-MS) was used for analysing their activities. Kinetic studies and inhibition assays of CYP enzymes were performed using known substrates and inhibitors for validating and comparing the reaction rates and time-dependent activities between methods using each substrate versus a method using a cocktail solution. The optimized cocktail method was successfully applied to evaluate the effects of the decoction of Socheongryong-tang (SCRT) on cytochrome P450 enzymes. Our cocktail method provides a simultaneous high-throughput activity assay using GC-MS for the first time. This method is applicable for analysing the drug interactions of various plant-derived mixtures.
Collapse
Affiliation(s)
- Hyun-A Oh
- Molecular Recognition Research Center, Korea Institute of Science and Technology, Seoul 136-791, Republic of Korea; Department of Biological Sciences, Konkuk University, Seoul 143-701, Republic of Korea
| | - Hyunbeom Lee
- Molecular Recognition Research Center, Korea Institute of Science and Technology, Seoul 136-791, Republic of Korea
| | - Donghak Kim
- Department of Biological Sciences, Konkuk University, Seoul 143-701, Republic of Korea
| | - Byung Hwa Jung
- Molecular Recognition Research Center, Korea Institute of Science and Technology, Seoul 136-791, Republic of Korea; University of Science and Technology (UST), Daejeon 305-600, Republic of Korea.
| |
Collapse
|
20
|
Characterization of oxycodone in vitro metabolism by human cytochromes P450 and UDP-glucuronosyltransferases. J Pharm Biomed Anal 2016; 144:129-137. [PMID: 27692933 DOI: 10.1016/j.jpba.2016.09.024] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Revised: 09/06/2016] [Accepted: 09/24/2016] [Indexed: 11/21/2022]
Abstract
The hepatic metabolism of oxycodone by cytochromes P450 (CYP) and the UDP-glucuronosyltransferases (UGT), the main metabolic enzymes of phase I and phase II, respectively, was assessed in vitro. The N-demethylation by CYP3A4/5 and the O-demethylation by CYP2D6 in human liver microsomes (HLM) followed Michaelis-Menten kinetics, with intrinsic clearances of 1.46μL/min/mg and 0.35μL/min/mg, respectively. Although noroxycodone and oxymorphone mainly contribute to the elimination of oxycodone, the simulated total in vivo clearance using in vitro phase I metabolism was underestimated. For the first time, metabolism of oxycodone by UGT was deeply investigated using HLM, recombinant enzymes and selective inhibitors. Oxycodone-glucuronide was mainly produced by UGT2B7 (Km=762±153μM, Vmax=344±20 peak area/min/mg) and to a lesser extent by UGT2B4 (Km=2454±497μM, Vmax=201±19 peak area/min/mg). Finally, the kinetics of the drug-drug interactions were assessed using two CYP and UGT cocktail approaches. Incubations of HLM with phase I and phase II drug probes showed that oxycodone mainly decreased the in vitro activities of CYP2D6, CYP3A4/5, UGT1A3, UGT1A6 and UGT2B subfamily with an important impact on UGT2B7.
Collapse
|
21
|
Spaggiari D, Daali Y, Rudaz S. An extensive cocktail approach for rapid risk assessment of in vitro CYP450 direct reversible inhibition by xenobiotic exposure. Toxicol Appl Pharmacol 2016; 302:41-51. [DOI: 10.1016/j.taap.2016.04.013] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Revised: 04/15/2016] [Accepted: 04/16/2016] [Indexed: 11/25/2022]
|
22
|
Liu L, Miao MX, Zhong ZY, Xu P, Chen Y, Liu XD. Chronic administration of caderofloxacin, a new fluoroquinolone, increases hepatic CYP2E1 expression and activity in rats. Acta Pharmacol Sin 2016; 37:561-70. [PMID: 26838075 DOI: 10.1038/aps.2015.160] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Accepted: 10/22/2015] [Indexed: 02/07/2023] Open
Abstract
AIM Caderofloxacin is a new fluoroquinolone that is under phase III clinical trials in China. Here we examined the effects of caderofloxacin on rat hepatic cytochrome P450 (CYP450) isoforms as well as the potential of caderofloxacin interacting with co-administered drugs. METHODS Male rats were treated with caderofloxacin (9 mg/kg, ig) once or twice daily for 14 consecutive days. The effects of caderofloxacin on CYP3A, 2D6, 2C19, 1A2, 2E1 and 2C9 were evaluated using a "cocktail" of 6 probes (midazolam, dextromethorphan, omeprazole, theophylline, chlorzoxazone and diclofenac) injected on d 0 (prior to caderofloxacin exposure) and d 15 (after caderofloxacin exposure). Hepatic microsomes from the caderofloxacin-treated rats were used to assess CYP2E1 activity and chlorzoxazone metabolism. The expression of CYP2E1 mRNA and protein in hepatic microsomes was analyzed with RT-PCR and Western blotting, respectively. RESULTS Fourteen-day administration of caderofloxacin significantly increased the activity of hepatic CYP2E1, leading to enhanced metabolism of chlorzoxazone. In vitro microsomal study confirmed that CYP2E1 was a major metabolic enzyme involved in chlorzoxazone metabolism, and the 14-d administration of caderofloxacin significantly increased the activity of CYP2E1 in hepatic microsomes, resulting in increased formation of 6-hydroxychlorzoxazone. Furthermore, the 14-d administration of caderofloxacin significantly increased the expression of CYP2E1 mRNA and protein in liver microsomes, which was consistent with the pharmacokinetic results. CONCLUSION Fourteen-day administration of caderofloxacin can induce the expression and activity of hepatic CYP2E1 in rats. When caderofloxacin is administered, a potential drug-drug interaction mediated by CYP2E1 induction should be considered.
Collapse
|
23
|
He W, Wu JJ, Ning J, Hou J, Xin H, He YQ, Ge GB, Xu W. Inhibition of human cytochrome P450 enzymes by licochalcone A, a naturally occurring constituent of licorice. Toxicol In Vitro 2015; 29:1569-76. [DOI: 10.1016/j.tiv.2015.06.014] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2015] [Revised: 06/04/2015] [Accepted: 06/16/2015] [Indexed: 01/28/2023]
|
24
|
Burkhardt T, Letzel T, Drewes JE, Grassmann J. Comprehensive assessment of Cytochrome P450 reactions: A multiplex approach using real-time ESI-MS. Biochim Biophys Acta Gen Subj 2015; 1850:2573-81. [PMID: 26409144 DOI: 10.1016/j.bbagen.2015.09.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2015] [Revised: 09/01/2015] [Accepted: 09/22/2015] [Indexed: 01/14/2023]
Abstract
BACKGROUND The detailed analysis of Cytochrome P450 (CYP) catalyzed reactions is of great interest, since those are of importance for biotechnical applications, drug interaction studies and environmental research. Often cocktail approaches are carried out in order to monitor several CYP activities in a single experiment. Commonly in these approaches product formation is detected and IC50 values are determined. METHODS In the present work, the reactions of two different CYP isoforms were monitored using real-time electrospray ionization mass spectrometry. Multiplex experiments using the highly specific CYP2A6 with its corresponding substrate coumarin as well as the highly promiscuous CYP3A4 with testosterone were conducted. Product formation and substrate depletion were simultaneously monitored and compared to the single CYP experiments. The diffusion-controlled rate of reaction and conversion rates that are used as parameters to assess the enzymatic activity were calculated for all measurements conducted. RESULTS Differences in conversion rates and the theoretical rate of reaction that were observed for single CYP and multiplex experiments, respectively, reveal the complexity of the underlying mechanisms. Findings of this study imply that there might be distinct deviations between product formation and substrate degradation when mixtures are used. CONCLUSIONS Detailed results indicate that for a comprehensive assessment of these enzymatic reactions both product and substrate should be considered. GENERAL SIGNIFICANCE The direct hyphenation of enzymatic reactions to mass spectrometry allows for a comprehensive assessment of enzymatic behavior. Due to the benefits of this technique, the entire system which includes substrate, product and intermediates can be investigated. Thus, besides IC50 values further information regarding the enzymatic behavior offers the opportunity for a more detailed insight.
Collapse
Affiliation(s)
- Therese Burkhardt
- Chair of Urban Water Systems Engineering, Technical University of Munich, Am Coulombwall, 85748 Garching, Germany.
| | - Thomas Letzel
- Chair of Urban Water Systems Engineering, Technical University of Munich, Am Coulombwall, 85748 Garching, Germany.
| | - Jörg E Drewes
- Chair of Urban Water Systems Engineering, Technical University of Munich, Am Coulombwall, 85748 Garching, Germany.
| | - Johanna Grassmann
- Chair of Urban Water Systems Engineering, Technical University of Munich, Am Coulombwall, 85748 Garching, Germany.
| |
Collapse
|
25
|
Inhibition screening method of microsomal UGTs using the cocktail approach. Eur J Pharm Sci 2015; 71:35-45. [DOI: 10.1016/j.ejps.2015.02.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2014] [Revised: 02/01/2015] [Accepted: 02/02/2015] [Indexed: 02/06/2023]
|
26
|
Tyteca E, Desfontaine V, Desmet G, Guillarme D. Possibilities of retention modeling and computer assisted method development in supercritical fluid chromatography. J Chromatogr A 2015; 1381:219-28. [DOI: 10.1016/j.chroma.2014.12.077] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2014] [Revised: 12/16/2014] [Accepted: 12/26/2014] [Indexed: 10/24/2022]
|
27
|
Spaggiari D, Mehl F, Desfontaine V, Grand-Guillaume Perrenoud A, Fekete S, Rudaz S, Guillarme D. Comparison of liquid chromatography and supercritical fluid chromatography coupled to compact single quadrupole mass spectrometer for targeted in vitro metabolism assay. J Chromatogr A 2014; 1371:244-56. [DOI: 10.1016/j.chroma.2014.10.055] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2014] [Revised: 10/06/2014] [Accepted: 10/19/2014] [Indexed: 12/19/2022]
|