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Li Y, Liu X, Li L, Zhang T, Gao Y, Zeng K, Wang Q. Characterization of the metabolism of eupalinolide A and B by carboxylesterase and cytochrome P450 in human liver microsomes. Front Pharmacol 2023; 14:1093696. [PMID: 36762117 PMCID: PMC9905117 DOI: 10.3389/fphar.2023.1093696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 01/16/2023] [Indexed: 01/26/2023] Open
Abstract
Eupalinolide A (EA; Z-configuration) and eupalinolide B (EB; E-configuration) are bioactive cis-trans isomers isolated from Eupatorii Lindleyani Herba that exert anti-inflammatory and antitumor effects. Although one pharmacokinetic study found that the metabolic parameters of the isomers were different in rats, metabolic processes relevant to EA and EB remain largely unknown. Our preliminary findings revealed that EA and EB are rapidly hydrolyzed by carboxylesterase. Here, we investigated the metabolic stability and enzyme kinetics of carboxylesterase-mediated hydrolysis and cytochrome P450 (CYP)-mediated oxidation of EA and EB in human liver microsomes (HLMs). We also explored differences in the hydrolytic stability of EA and EB in human liver microsomes and rat liver microsomes (RLMs). Moreover, cytochrome P450 reaction phenotyping of the isomers was performed via in silico methods (i.e., using a quantitative structure-activity relationship model and molecular docking) and confirmed using human recombinant enzymes. The total normalized rate approach was considered to assess the relative contributions of five major cytochrome P450s to EA and EB metabolism. We found that EA and EB were eliminated rapidly, mainly by carboxylesterase-mediated hydrolysis, as compared with cytochrome P450-mediated oxidation. An inter-species difference was observed as well, with faster rates of EA and EB hydrolysis in rat liver microsomes. Furthermore, our findings confirmed EA and EB were metabolized by multiple cytochrome P450s, among which CYP3A4 played a particularly important role.
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Affiliation(s)
- Yingzi Li
- Department of Toxicology, School of Public Health, Peking University, Beijing, China
| | - Xiaoyan Liu
- Department of Toxicology, School of Public Health, Peking University, Beijing, China
| | - Ludi Li
- Department of Toxicology, School of Public Health, Peking University, Beijing, China
| | - Tao Zhang
- Department of Toxicology, School of Public Health, Peking University, Beijing, China
| | - Yadong Gao
- Department of Toxicology, School of Public Health, Peking University, Beijing, China
| | - Kewu Zeng
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China,*Correspondence: Kewu Zeng, ; Qi Wang,
| | - Qi Wang
- Department of Toxicology, School of Public Health, Peking University, Beijing, China,Key Laboratory of State Administration of Traditional Chinese Medicine for Compatibility Toxicology, Beijing, China,Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Beijing, China,*Correspondence: Kewu Zeng, ; Qi Wang,
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Verma SK, Biswas A, Kumar M, Mishra A, Choudhury AD, Agrawal S, Sanap SN, Bisen AC, Sharma AK, Panda G, Bhatta RS. Preclinical pharmacokinetics, CYP phenotyping, and tissue distribution study of novel anti-breast cancer candidate S-011-1559. Xenobiotica 2022; 52:476-487. [PMID: 35819259 DOI: 10.1080/00498254.2022.2101033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
S-011-1559 is a tyrosine-derived novel benzoxazine CDRI molecule targeted to the estrogen-related receptor (ER-α/β) modulator in breast cancer. To explore the pharmacokinetics of S-011-1559, a selective and sensitive bioanalytical method using LC-MS/MS was established and validated in different biological matrices of female rats.Blood-to-plasma ratio and plasma protein binding (PPB) of S-011-1559 was found to be <1 and >97% in both rats and humans respectively. The human serum albumin (HSA) and alpha-1-acid glycoprotein (AAG) binding was found in the range of >68 to 45% and >14% respectively. Half-life and intrinsic clearance by microsomal stability study were found to be 28.83 min and 0.05 mL/min/mg in rats, 78.35 min and 0.036 mL/min/mg in humans respectively. The IC50 value of S-011-1559 against CYP isoforms was revealed to moderately inhibit CYP2D6 by a reversible noncompetitive mechanism.Tissue distribution of S-011-1559 on single intravenous injection at 2mg/kg was found in the order of C lungs > C mammary gland > C spleen > C heart > C kidney > C liver > C brain.The data from the present study provides crucial information about S-011-1559 for further development as a novel potential drug candidate in modulating ER-α/β receptors of lung and breast neoplasia.
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Affiliation(s)
- Sarvesh Kumar Verma
- Pharmaceutics and Pharmacokinetic Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India.,Jawaharlal Nehru University, New Delhi, 110067, India
| | - Arpon Biswas
- Pharmaceutics and Pharmacokinetic Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India.,Jawaharlal Nehru University, New Delhi, 110067, India
| | - Mukesh Kumar
- Pharmaceutics and Pharmacokinetic Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India.,Jawaharlal Nehru University, New Delhi, 110067, India
| | - Anjali Mishra
- Pharmaceutics and Pharmacokinetic Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Abhijit Deb Choudhury
- Pharmaceutics and Pharmacokinetic Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India.,Jawaharlal Nehru University, New Delhi, 110067, India
| | - Sristi Agrawal
- Pharmaceutics and Pharmacokinetic Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Sachin Nashik Sanap
- Pharmaceutics and Pharmacokinetic Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Amol Chhatrapati Bisen
- Pharmaceutics and Pharmacokinetic Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Ashok Kumar Sharma
- Division of medicinal and process chemistry, CSIR-Central Drug Research Institute, Lucknow, 226031, India
| | - Gautam Panda
- Division of medicinal and process chemistry, CSIR-Central Drug Research Institute, Lucknow, 226031, India
| | - Rabi Sankar Bhatta
- Pharmaceutics and Pharmacokinetic Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India
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Sreevatsav Adiraju SK, Shekar K, Fraser JF, Smith MT, Ghassabian S. An improved LC-MS/MS method for simultaneous evaluation of CYP2C9, CYP2C19, CYP2D6 and CYP3A4 activity. Bioanalysis 2018; 10:1577-90. [PMID: 30226084 DOI: 10.4155/bio-2018-0102] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
AIM To develop an LC-MS/MS assay to quantitate well-tolerated substrates; midazolam (CYP3A), omeprazole (CYP2C19), dextromethorphan (CYP2D6), losartan (CYP2C9) and their respective metabolites' concentrations in plasma samples. PATIENTS & METHODS A solid-phase extraction method was optimized to extract analytes of interest simultaneously from human plasma samples. The assay analyzed plasma samples collected from patients who received equal or lower than therapeutic doses of CYP substrates. RESULTS This assay was validated based on the European Medicines Agency guideline for bioanalytical method validation and was sensitive, linear, accurate and precise with acceptable recovery and matrix effects. CONCLUSION Small sample volume and dose of cytochrome P450 substrates, short-run time, using stable isotope internal standards and being cost effective are the major advantages of the assay.
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