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Zhao Q, Hu Z, Wang A, Ding Z, Zhao G, Wang X, Li W, Peng Y, Zheng J. Correlation of Vanillin-Induced Cytotoxicity with CYP3A-Mediated Metabolic Activation. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024. [PMID: 39196852 DOI: 10.1021/acs.jafc.4c03060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/30/2024]
Abstract
Vanillin (VAN) is a common flavoring agent that can cause liver damage when ingested in large amounts. Nevertheless, the precise processes responsible for its toxicity remain obscure. The present research aimed to examine the metabolic activation of VAN and establish a potential correlation between its reactive metabolites and its cytotoxicity. In rat liver microsomes incubated with VAN, reduced glutathione/N-acetylcysteine (GSH/NAC), and nicotinamide adenine dinucleotide phosphate (NADPH), two conjugates formed from GSH and one conjugate derived from NAC were identified. We also discovered one GSH conjugate in both the bile obtained from rats and the rat primary hepatocytes that were subjected to VAN exposure. Additionally, the NAC conjugate exerted in the urine of VAN-treated rats was observed. These results indicate that a quinone intermediate was produced from VAN both in vitro and in vivo. Next, we identified CYP3A as the main enzyme that initiated the bioactive pathway of VAN. After the activity of CYP3A was selectively inhibited by ketoconazole (KTZ), the generation of the GSH conjugate declined in hepatocytes exposed to VAN. Furthermore, the vulnerability to VAN-induced toxicity was alleviated by KTZ in hepatocytes. Thus, we propose that the cytotoxicity of VAN may derive from metabolic activation triggered by CYP3A.
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Affiliation(s)
- Qiang Zhao
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P. R. China
| | - Zixia Hu
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P. R. China
| | - Aixuan Wang
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P. R. China
| | - Zifang Ding
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P. R. China
| | - Guode Zhao
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P. R. China
| | - Xinyue Wang
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P. R. China
| | - Weiwei Li
- State Key Laboratory of Functions and Applications of Medicinal Plants, Key Laboratory of Pharmaceutics of Guizhou Province, Guizhou Medical University, Guiyang, Guizhou 550004, P. R. China
| | - Ying Peng
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P. R. China
| | - Jiang Zheng
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P. R. China
- State Key Laboratory of Functions and Applications of Medicinal Plants, Key Laboratory of Pharmaceutics of Guizhou Province, Guizhou Medical University, Guiyang, Guizhou 550004, P. R. China
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Li X, Xin L, Yang L, Yang Y, Li W, Zhang M, Liao Y, Sun C, Li W, Peng Y, Zheng J. Identification of an Epoxide Metabolite of Amitriptyline In Vitro and In Vivo. Chem Res Toxicol 2024; 37:935-943. [PMID: 38761382 DOI: 10.1021/acs.chemrestox.4c00008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/20/2024]
Abstract
Amitriptyline (ATL), a tricyclic antidepressant, has been reported to cause various adverse effects, particularly hepatotoxicity. The mechanisms of ATL-induced hepatotoxicity remain unknown. The study was performed to identify the olefin epoxidation metabolite of ATL and determine the possible toxicity mechanism. Two glutathione (GSH) conjugates (M1 and M2) and two N-acetylcysteine (NAC) conjugates (M3 and M4) were detected in rat liver microsomal incubations supplemented with GSH and NAC, respectively. Moreover, M1/M2 and M3/M4 were respectively found in ATL-treated rat primary hepatocytes and in bile and urine of rats given ATL. Recombinant P450 enzyme incubations demonstrated that CYP3A4 was the primary enzyme involved in the olefin epoxidation of ATL. Treatment of hepatocytes with ATL resulted in significant cell death. Inhibition of CYP3A attenuated the susceptibility to the observed cytotoxicity of ATL. The metabolic activation of ATL most likely participates in the cytotoxicity of ATL.
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Affiliation(s)
- Ximei Li
- State Key Laboratory of Functions and Applications of Medicinal Plants, Key Laboratory of Pharmaceutics of Guizhou Province, Guizhou Medical University, Guiyang, Guizhou 550025, P. R. China
| | - Lihua Xin
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P. R. China
| | - Lan Yang
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P. R. China
| | - Yi Yang
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P. R. China
| | - Wei Li
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P. R. China
| | - Mingyu Zhang
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P. R. China
| | - Yufen Liao
- State Key Laboratory of Functions and Applications of Medicinal Plants, Key Laboratory of Pharmaceutics of Guizhou Province, Guizhou Medical University, Guiyang, Guizhou 550025, P. R. China
| | - Chen Sun
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P. R. China
| | - Weiwei Li
- State Key Laboratory of Functions and Applications of Medicinal Plants, Key Laboratory of Pharmaceutics of Guizhou Province, Guizhou Medical University, Guiyang, Guizhou 550025, P. R. China
| | - Ying Peng
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P. R. China
| | - Jiang Zheng
- State Key Laboratory of Functions and Applications of Medicinal Plants, Key Laboratory of Pharmaceutics of Guizhou Province, Guizhou Medical University, Guiyang, Guizhou 550025, P. R. China
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P. R. China
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Gao X, Hu Z, Wang Y, Zhao G, Shen Y, Zhou H, Liao Y, Li W, Peng Y, Zheng J. Metabolic Activation and Cytotoxicity of Gramine Mediated by CYP3A in Rats. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:10897-10908. [PMID: 38691522 DOI: 10.1021/acs.jafc.4c00400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2024]
Abstract
Gramine (GRM), which occurs in Gramineae plants, has been developed to be a biological insecticide. Exposure to GRM was reported to induce elevations of serum ALT and AST in rats, but the mechanisms of the observed hepatotoxicity have not been elucidated. The present study aimed to identify reactive metabolites that potentially participate in the toxicity. In rat liver microsomal incubations fortified with glutathione or N-acetylcysteine, one oxidative metabolite (M1), one glutathione conjugate (M2), and one N-acetylcysteine conjugate (M3) were detected after exposure to GRM. The corresponding conjugates were detected in the bile and urine of rats after GRM administration. CYP3A was the main enzyme mediating the metabolic activation of GRM. The detected GSH and NAC conjugates suggest that GRM was metabolized to a quinone imine intermediate. Both GRM and M1 showed significant toxicity to rat primary hepatocytes.
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Affiliation(s)
- Xingyu Gao
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P. R. China
| | - Zixia Hu
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P. R. China
| | - Yang Wang
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P. R. China
| | - Guode Zhao
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P. R. China
| | - Yan Shen
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P. R. China
| | - Hao Zhou
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P. R. China
| | - Yufen Liao
- State Key Laboratory of Functions and Applications of Medicinal Plants, Key Laboratory of Pharmaceutics of Guizhou Province, Guizhou Medical University, Guiyang, Guizhou 550025, P. R. China
| | - Weiwei Li
- State Key Laboratory of Functions and Applications of Medicinal Plants, Key Laboratory of Pharmaceutics of Guizhou Province, Guizhou Medical University, Guiyang, Guizhou 550025, P. R. China
| | - Ying Peng
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P. R. China
| | - Jiang Zheng
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P. R. China
- State Key Laboratory of Functions and Applications of Medicinal Plants, Key Laboratory of Pharmaceutics of Guizhou Province, Guizhou Medical University, Guiyang, Guizhou 550025, P. R. China
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Sun C, Zhang M, Guan C, Li W, Peng Y, Zheng J. In vitro and in vivo metabolic activation and hepatotoxicity of chlorzoxazone mediated by CYP3A. Arch Toxicol 2024; 98:1095-1110. [PMID: 38369618 DOI: 10.1007/s00204-023-03674-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Accepted: 12/20/2023] [Indexed: 02/20/2024]
Abstract
Chlorzoxazone (CZX), a benzoxazolone derivative, has been approved for the treatment of musculoskeletal disorders to relieve localized muscle spasm. However, its idiosyncratic toxicity reported in patients brought attention, particularly for hepatotoxicity. The present study for the first time aimed at the relationship between CZX-induced hepatotoxicity and identification of oxirane intermediate resulting from metabolic activation of CZX. Two N-acetylcysteine (NAC) conjugates (namely M1 and M2) and two glutathione (GSH) conjugates (namely M3 and M4) were detected in rat & human microsomal incubations with CZX (200 μM) fortified with NAC or GSH, respectively. The formation of M1-M4 was NADPH-dependent and these metabolites were also observed in urine or bile of SD rats given CZX intragastrically at 10 mg/kg or 25 mg/kg. NAC was found to attach at C-6' of the benzo group of M1 by sufficient NMR data. CYPs3A4 and 3A5 dominated the metabolic activation of CZX. The two GSH conjugates were also observed in cultured rat primary hepatocytes after exposure to CZX. Inhibition of CYP3A attenuated the susceptibility of hepatocytes to the cytotoxicity of CZX (10-400 μM). The in vitro and in vivo studies provided solid evidence for the formation of oxirane intermediate of CZX. This would facilitate the understanding of the underlying mechanisms of toxic action of CZX.
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Affiliation(s)
- Chen Sun
- Wuya College of Innovation, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning, 110016, People's Republic of China
| | - Mingyu Zhang
- Wuya College of Innovation, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning, 110016, People's Republic of China
| | - Chunjing Guan
- Wuya College of Innovation, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning, 110016, People's Republic of China
| | - Weiwei Li
- State Key Laboratory of Functions and Applications of Medicinal Plants, Key Laboratory of Pharmaceutics of Guizhou Province, Guizhou Medical University, Guiyang, Guizhou, 550004, People's Republic of China.
| | - Ying Peng
- Wuya College of Innovation, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning, 110016, People's Republic of China.
| | - Jiang Zheng
- Wuya College of Innovation, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning, 110016, People's Republic of China.
- State Key Laboratory of Functions and Applications of Medicinal Plants, Key Laboratory of Pharmaceutics of Guizhou Province, Guizhou Medical University, Guiyang, Guizhou, 550004, People's Republic of China.
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Ren K, Zhang X, Wang R, Ren S, Hua H, Wang D, Pan Y, Liu X. The inhibitory effect of licorice on the hepatotoxicity induced by the metabolic activation of Euodiae Fructus. JOURNAL OF ETHNOPHARMACOLOGY 2024; 319:117233. [PMID: 37793580 DOI: 10.1016/j.jep.2023.117233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Revised: 09/12/2023] [Accepted: 09/25/2023] [Indexed: 10/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Euodiae Fructus (EF), the dried, unripe, scented fruit of Tetradium ruticarpum (A. Juss, T.G.Hartley), is a traditional food and herb with mild toxicity. In Asia, it is processed with licorice (EFP), which has been used for centuries to alleviate pain and suppress cough. Pharmacological studies have reported that this herb could cause liver injury by activating the P450 3A enzyme, thus carrying the risk of clinical application. Processing with licorice is an effective method to reduce EF toxicity. It is urgent to explore the toxic components of EF and the attenuation mechanism of licorice. AIM OF THE STUDY This study aimed to indicate the specific pathway of EF-induced damage and identify the mechanism of action of licorice in reducing P450 activation and resulting in reduced liver damage. MATERIALS AND METHODS Male C57BL-6 mice were used to investigate the toxicity of EF to the liver and determine the attenuation effect on P450 from licorice ingestion. Glutathione (GSH) was used to capture the metabolic activation intermediates of EF. The key component reducing the EF toxicity of licorice was investigated by comparing the differences in chemical components and inhibition on the EF metabolism of licorice from different habitats. RESULTS The intermediate product of evodiamine (EVO) in EF was found to be activated by the P450 enzyme during metabolism, causing liver injury and inflammation. Isoliquiritigenin and liquiritigenin in licorice produced by intestinal bacterial metabolism and glycyrrhizin inhibited the metabolic activation of EF. Glycosides in licorice are metabolized into aglycones by intestinal bacteria, inhibiting the metabolic activation of EF and alleviating hepatotoxicity. CONCLUSIONS By combining with GSH, the electrophilic intermediates produced by the P450 enzyme's metabolic activation of the indole ring of EVO might cause hepatotoxicity. Glycyrrhizin from licorice and the liquiritigenin and isoliquiritigenin generated by intestinal bacterial metabolism play an attenuated function by inhibiting the P450 enzyme and preventing the metabolic activation of EF.
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Affiliation(s)
- Kun Ren
- School of Traditional Chinese Medicine, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning, 110016, China
| | - Xuanmeng Zhang
- School of Traditional Chinese Medicine, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning, 110016, China
| | - Ruijie Wang
- School of Traditional Chinese Medicine, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning, 110016, China
| | - Shumeng Ren
- School of Traditional Chinese Medicine, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning, 110016, China.
| | - Huiming Hua
- School of Traditional Chinese Medicine, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning, 110016, China
| | - Dongmei Wang
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning, 110016, China
| | - Yingni Pan
- School of Traditional Chinese Medicine, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning, 110016, China
| | - Xiaoqiu Liu
- School of Traditional Chinese Medicine, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning, 110016, China.
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Su M, Zhao Y, Li M, Jia C, Liu H, Zhang Y, Li W, Peng Y, Zheng J. Evidence for the Metabolic Activation of Deferasirox In Vitro and In Vivo. Chem Res Toxicol 2023; 36:1255-1266. [PMID: 37435843 DOI: 10.1021/acs.chemrestox.2c00416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/13/2023]
Abstract
Deferasirox (DFS) is used for the treatment of iron accumulation caused by the need for long-term blood transfusions, such as thalassemia or other rare anemia. Liver injury due to exposure to DFS has been documented, and the toxic mechanisms of DFS are unknown. The present study aimed to investigate the reactive metabolites of DFS in vitro and in vivo to help us understand the mechanisms of DFS hepatotoxicity. Two hydroxylated metabolites (5-OH and 5'-OH) were identified during incubation of DFS-supplemented rat liver microsomes. Such microsomal incubations fortified with glutathione (GSH) or N-acetylcysteine (NAC) as capture agents offered two GSH conjugates and two NAC conjugates. These GSH conjugates and NAC conjugates were also detected in bile and urine of rats given DFS. CYP1A2 and CYP3A4 were found to dominate the metabolic activation of DFS. Administration of DFS induced decreased cell survival in cultured primary hepatocytes. Pretreatment with ketoconazole and 1-aminobenzotrizole made hepatocytes less susceptible to the cytotoxicity of DFS.
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Affiliation(s)
- Mengdie Su
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P.R. China
| | - Yanjia Zhao
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P.R. China
| | - Mei Li
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P.R. China
| | - Chenyang Jia
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P.R. China
| | - He Liu
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P.R. China
| | - Yue Zhang
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P.R. China
| | - Weiwei Li
- State Key Laboratory of Functions and Applications of Medicinal Plants, Key Laboratory of Pharmaceutics of Guizhou Province, Guizhou Medical University, Guiyang, Guizhou 550025, P.R. China
| | - Ying Peng
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P.R. China
| | - Jiang Zheng
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P.R. China
- State Key Laboratory of Functions and Applications of Medicinal Plants, Key Laboratory of Pharmaceutics of Guizhou Province, Guizhou Medical University, Guiyang, Guizhou 550025, P.R. China
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Wang X, Ran G, Liao Y, Gong B, Wu C, Tan R, Liu Y, Zhang S, Peng Y, Li W, Zheng J. Formation of RNA adducts resulting from metabolic activation of spice ingredient safrole mediated by P450 enzymes and sulfotransferases. Food Chem Toxicol 2023; 174:113688. [PMID: 36841326 DOI: 10.1016/j.fct.2023.113688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 02/12/2023] [Accepted: 02/20/2023] [Indexed: 02/26/2023]
Abstract
Safrole (SFL) is an IARC class 2B carcinogen. To better understand the mechanism involved in SFL toxicity, we explored the potential interactions between SFL metabolites and RNA. Three guanosine adducts (G1-G3), two adenosine adducts (A1-A2), and two cytosine adducts (C1-C2) were detected by LC-MS/MS in mouse liver S9 incubations, cultured mouse primary hepatocytes, and liver tissues of mice after exposure to SFL. These adducts were chemically synthesized, and one of the guanosine adducts was structurally characterized by 1H-NMR. Studies in vitro and in vivo showed that SFL was oxidized by cytochrome P450 enzymes to the corresponding 1'-hydroxyl metabolite which was further metabolized by sulfotransferases to form allylic sulfate esters. The formed reactive intermediate(s) subsequently reacted with bases of RNA, leading to RNA adduction, which could play a partial role in the toxicities of SFL through the alteration of RNA biochemical properties and interruption of RNA functions.
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Affiliation(s)
- Xin Wang
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, Guizhou, 550004, PR China; School of Pharmacy, Guizhou Medical University, Guiyang, Guizhou, 550004, PR China
| | - Guangyun Ran
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, Guizhou, 550004, PR China; School of Pharmacy, Guizhou Medical University, Guiyang, Guizhou, 550004, PR China
| | - Yufen Liao
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, Guizhou, 550004, PR China; School of Pharmacy, Guizhou Medical University, Guiyang, Guizhou, 550004, PR China
| | - Bowen Gong
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, Guizhou, 550004, PR China; School of Basic Medical Sciences, Guizhou Medical University, Guiyang, Guizhou, 550004, PR China
| | - Chutian Wu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, Guizhou, 550004, PR China; School of Pharmacy, Guizhou Medical University, Guiyang, Guizhou, 550004, PR China
| | - Rong Tan
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, Guizhou, 550004, PR China; School of Basic Medical Sciences, Guizhou Medical University, Guiyang, Guizhou, 550004, PR China; First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang, 550001, PR China
| | - Ying Liu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, Guizhou, 550004, PR China; School of Basic Medical Sciences, Guizhou Medical University, Guiyang, Guizhou, 550004, PR China
| | - Shiyu Zhang
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, Guizhou, 550004, PR China; School of Basic Medical Sciences, Guizhou Medical University, Guiyang, Guizhou, 550004, PR China; First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang, 550001, PR China
| | - Ying Peng
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning, 110016, PR China.
| | - Weiwei Li
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, Guizhou, 550004, PR China; School of Pharmacy, Guizhou Medical University, Guiyang, Guizhou, 550004, PR China.
| | - Jiang Zheng
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, Guizhou, 550004, PR China; School of Pharmacy, Guizhou Medical University, Guiyang, Guizhou, 550004, PR China; Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning, 110016, PR China.
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8
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Ran G, Liao Y, Wang X, Liu Y, Gong B, Wu C, Cheng Z, Peng Y, Li W, Zheng J. Mechanistic Study of Xanthotoxin-Mediated Inactivation of CYP1A2 and Related Drug-Drug Interaction with Tacrine. Chem Res Toxicol 2023; 36:420-429. [PMID: 36892569 DOI: 10.1021/acs.chemrestox.2c00360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/10/2023]
Abstract
Xanthotoxin (XTT) is a biologically active furanocoumarin widely present in foods and plants. The present study is designed to systematically investigate the enzymatic interaction of XTT with CYP1A2, along with pharmacokinetic alteration of tacrine resulting from the co-administration of XTT. The results showed that XTT induced a time-, concentration-, and NADPH-dependent inhibition of CYP1A2, and the inhibition was irreversible. Co-incubation of glutathione (GSH) and catalase/superoxide dismutase was unable to prevent enzyme inactivation. Nevertheless, competitive inhibitor fluvoxamine exhibited a concentration-dependent protective effect against the XTT-induced CYP1A2 inactivation. A GSH trapping experiment provided strong evidence for the production of epoxide or/and γ-ketoenal intermediates resulting from the metabolic activation of XTT. Furthermore, pretreatment of rats with XTT was found to significantly increase the Cmax and area under the curve of plasma tacrine relative to those of tacrine administration alone.
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Affiliation(s)
- Guangyun Ran
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, Guizhou 550004, P. R. China
- School of Pharmacy, Guizhou Medical University, Guiyang, Guizhou 550004, P. R. China
| | - Yufen Liao
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, Guizhou 550004, P. R. China
- School of Pharmacy, Guizhou Medical University, Guiyang, Guizhou 550004, P. R. China
| | - Xin Wang
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, Guizhou 550004, P. R. China
- School of Pharmacy, Guizhou Medical University, Guiyang, Guizhou 550004, P. R. China
| | - Ying Liu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, Guizhou 550004, P. R. China
- School of Pharmacy, Guizhou Medical University, Guiyang, Guizhou 550004, P. R. China
| | - Bowen Gong
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, Guizhou 550004, P. R. China
- School of Pharmacy, Guizhou Medical University, Guiyang, Guizhou 550004, P. R. China
| | - Chutian Wu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, Guizhou 550004, P. R. China
- School of Pharmacy, Guizhou Medical University, Guiyang, Guizhou 550004, P. R. China
| | - Zihao Cheng
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, Guizhou 550004, P. R. China
- School of Pharmacy, Guizhou Medical University, Guiyang, Guizhou 550004, P. R. China
| | - Ying Peng
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P. R. China
| | - Weiwei Li
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, Guizhou 550004, P. R. China
- School of Pharmacy, Guizhou Medical University, Guiyang, Guizhou 550004, P. R. China
| | - Jiang Zheng
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, Guizhou 550004, P. R. China
- School of Pharmacy, Guizhou Medical University, Guiyang, Guizhou 550004, P. R. China
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P. R. China
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9
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Huang H, Zhang EB, Yi OY, Wu H, Deng G, Huang YM, Liu WL, Yan JY, Cai X. Sex-related differences in safety profiles, pharmacokinetics and tissue distribution of sinomenine hydrochloride in rats. Arch Toxicol 2022; 96:3245-3255. [PMID: 36040703 DOI: 10.1007/s00204-022-03368-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 08/24/2022] [Indexed: 12/12/2022]
Abstract
Sinomenine is a bioactive alkaloid isolated from the Chinese medicinal plant Sinomenium acutum (Thunb.) Rehd. et Wils which exhibits significant analgesic, anti-inflammatory, and immunosuppressive effects. Sinomenine hydrochloride (SH) preparations, classified as natural disease-modifying antirheumatic drugs, are currently available for the treatment of rheumatoid arthritis and other rheumatic diseases. Our toxicity evaluation demonstrated that the median lethal dose of SH in female Sprague-Dawley (SD) rats was over 11 times greater than that in male SD rats, revealing striking sex-linked differences in the safety profile of SH. The present study was designed to investigate differences in the pharmacokinetics (PKs) and tissue distribution of SH between male and female SD rats after a single oral dose of 25 mg/kg. PK and tissue distribution studies were performed using a validated UPLC-MS/MS method. The results showed that SH-treated SD female rats displayed markedly greater drug exposure, and SH exhibited a longer half-life and slower clearance rate than comparable studies in male rats. Moreover, the tissue distribution study confirmed that the sinomenine concentration in female rats was considerably greater in the internal organs than in male rats. Our study demonstrates, for the first time, significant sex-related differences in the safety profile and PKs of SH, which may be associated with a distinct sex-dependent metabolic mechanism of sinomenine.
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Affiliation(s)
- Hong Huang
- Department of Rheumatology of the First Hospital and Institute of Innovation and Applied Research in Chinese Medicine, Hunan University of Chinese Medicine, Changsha, 410007, Hunan, China
| | - Er-Bing Zhang
- Department of Rheumatology of the First Hospital and Institute of Innovation and Applied Research in Chinese Medicine, Hunan University of Chinese Medicine, Changsha, 410007, Hunan, China.,Shenzhen Institute for Drug Control, Shenzhen, 518057, Guangdong, China
| | - Ou-Yang Yi
- Department of Rheumatology of the First Hospital and Institute of Innovation and Applied Research in Chinese Medicine, Hunan University of Chinese Medicine, Changsha, 410007, Hunan, China
| | - Han Wu
- Department of Rheumatology of the First Hospital and Institute of Innovation and Applied Research in Chinese Medicine, Hunan University of Chinese Medicine, Changsha, 410007, Hunan, China
| | - Guiming Deng
- Department of Rheumatology of the First Hospital and Institute of Innovation and Applied Research in Chinese Medicine, Hunan University of Chinese Medicine, Changsha, 410007, Hunan, China
| | - Yu-Ming Huang
- Hunan Zhengqing Pharmaceutical Group Co., Ltd., Huaihua, 418000, Hunan, China
| | - Wen-Liang Liu
- Shenzhen Institute for Drug Control, Shenzhen, 518057, Guangdong, China.
| | - Jian-Ye Yan
- Department of Rheumatology of the First Hospital and Institute of Innovation and Applied Research in Chinese Medicine, Hunan University of Chinese Medicine, Changsha, 410007, Hunan, China.
| | - Xiong Cai
- Department of Rheumatology of the First Hospital and Institute of Innovation and Applied Research in Chinese Medicine, Hunan University of Chinese Medicine, Changsha, 410007, Hunan, China.
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10
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Zhao Y, Sun C, Su M, Shi J, Hu Z, Peng Y, Zheng J. Evidence for Metabolic Activation of Omeprazole In Vitro and In Vivo. Chem Res Toxicol 2022; 35:1493-1502. [PMID: 35994611 DOI: 10.1021/acs.chemrestox.2c00111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Omeprazole (OPZ) is a proton pump inhibitor commonly used for the treatment of gastric acid hypersecretion. Studies have revealed that use of OPZ can induce hepatotoxicity, but the mechanisms by which it induces liver injury are unclear. This study aimed to identify reactive metabolites of OPZ, determine the pathways of the metabolic activation, and define the correlation of the bioactivation with OPZ cytotoxicity. Quinone imine-derived glutathione (GSH), N-acetylcysteine (NAC), and cysteine (Cys) conjugates were detected in OPZ-fortified rat and human liver microsomal incubations captured with GSH, NAC, or Cys. The same GSH conjugates were detected in bile of rats and cultured liver primary cells after exposure to OPZ. Similarly, the same NAC conjugates were detected in urine of OPZ-treated rats. The resulting quinone imine was found to react with Cys residues of hepatic protein. CYP3A4 dominated the metabolic activation of OPZ. Exposure to OPZ resulted in decreased cell survival in cultured primary hepatocytes. Pretreatment with ketoconazole attenuated the susceptibility of hepatocytes to the cytotoxicity of OPZ.
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Affiliation(s)
- Yanjia Zhao
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P. R. China
| | - Chen Sun
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P. R. China
| | - Mengdie Su
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P. R. China
| | - Junzu Shi
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P. R. China
| | - Zixia Hu
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P. R. China
| | - Ying Peng
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P. R. China
| | - Jiang Zheng
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P. R. China.,State Key Laboratory of Functions and Applications of Medicinal Plants, Key Laboratory of Pharmaceutics of Guizhou Province, Guizhou Medical University, Guiyang, Guizhou 550025, P. R. China.,Key Laboratory of Environmental Pollution, Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang, Guizhou 550025, P. R. China
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11
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Tan R, Hu Z, Zhou M, Liu Y, Wang Y, Zou Y, Li K, Zhang S, Pan J, Peng Y, Li W, Zheng J. Diosbulbin B: An important component responsible for hepatotoxicity and protein covalent binding induced by Dioscorea bulbifera L. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2022; 102:154174. [PMID: 35660353 DOI: 10.1016/j.phymed.2022.154174] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 01/13/2022] [Accepted: 05/13/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Dioscorea bulbifera L. (DBL) is an herbal medicine used for the treatment of thyroid diseases and tumors in China. However, the hepatotoxicity of DBL limits its wide safe use. Diosbulbin B (DSB) is the most abundant diterpene lactone occurring in DBL. Numbers of studies showed that this furanoterpenoid plays an important role in DBL-induced liver injury and that DSB is metabolized to a cis-enedial intermediate which reacts with protein to form protein covalent binding and induces hepatotoxicity. PURPOSE The present study aimed to define the association of DSB content in DBL with the severity of DBL hepatotoxicity to ensure the safe use of the herbal medicine in clinical practice and to determine the role of DSB in DBL-induced liver injury. METHODS Chemical chromatographic fingerprints of DBL were established by UPLC-MS/MS. Their hepatotoxicity potencies were evaluated in vitro and in vivo. Metabolic activation of DSB was evaluated by liver microsomal incubation. Protein modification was assessed by mass spectrometry and immunostaining. RESULTS The contents of DSB in DBL herbs collected from 11 locations in China varied dramatically with as much as 47-fold difference. The hepatotoxicity potencies of DBL herbs were found to be proportional to the contents of DSB. Intensified protein adduction derived from the reactive metabolite of DSB was observed in mice administered DBL with high contents of DSB. CONCLUSION The findings not only demonstrated that contents of DSB can be quite different depending on harvest location and special attention needs to pay for quality control of DBL but also suggest DSB is a key contributor for DBL-induced hepatotoxicity.
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Affiliation(s)
- Rong Tan
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, Guizhou 550004, China; School of Basic Medical Sciences, Guizhou Medical University, Guiyang, Guizhou 550004, China; School of Life and Health Science, Kaili University, Kaili, Guizhou 556011, China
| | - Zixia Hu
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China
| | - Mengyue Zhou
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, Guizhou 550004, China; School of Pharmacy, Guizhou Medical University, Guiyang, Guizhou 550004, China
| | - Ying Liu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, Guizhou 550004, China; School of Pharmacy, Guizhou Medical University, Guiyang, Guizhou 550004, China
| | - Yang Wang
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, Guizhou 550004, China; School of Pharmacy, Guizhou Medical University, Guiyang, Guizhou 550004, China
| | - Ying Zou
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, Guizhou 550004, China; School of Pharmacy, Guizhou Medical University, Guiyang, Guizhou 550004, China
| | - Kunna Li
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, Guizhou 550004, China; School of Pharmacy, Guizhou Medical University, Guiyang, Guizhou 550004, China
| | - Shiyu Zhang
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, Guizhou 550004, China; School of Basic Medical Sciences, Guizhou Medical University, Guiyang, Guizhou 550004, China
| | - Jie Pan
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, Guizhou 550004, China; School of Pharmacy, Guizhou Medical University, Guiyang, Guizhou 550004, China
| | - Ying Peng
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China
| | - Weiwei Li
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, Guizhou 550004, China; School of Pharmacy, Guizhou Medical University, Guiyang, Guizhou 550004, China.
| | - Jiang Zheng
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, Guizhou 550004, China; Key Laboratory of Environmental Pollution, Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang, Guizhou 550004, China; School of Basic Medical Sciences, Guizhou Medical University, Guiyang, Guizhou 550004, China; School of Pharmacy, Guizhou Medical University, Guiyang, Guizhou 550004, China; Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China.
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12
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Hepatic RNA adduction derived from metabolic activation of retrorsine in vitro and in vivo. Chem Biol Interact 2022; 365:110047. [DOI: 10.1016/j.cbi.2022.110047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 06/21/2022] [Accepted: 07/13/2022] [Indexed: 11/19/2022]
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13
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Li W, Hu Z, Sun C, Wang Y, Li W, Peng Y, Zheng J. A Metabolic Activation-Based Chemoproteomic Platform to Profile Adducted Proteins Derived from Furan-Containing Compounds. ACS Chem Biol 2022; 17:873-882. [PMID: 35353477 DOI: 10.1021/acschembio.1c00917] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Human exposure to widespread furan-containing compounds (FCCs) has drawn much attention due to the high risk of their toxicities. Identifying adducted proteins resulting from the metabolic activation of FCCs is the core to learning the mechanism of FCCs' toxic action. We succeeded in establishing a metabolic activation-based chemoproteomic platform to map FCC-derived protein adducts in cultured primary hepatocytes treated with FCCs and to pinpoint the modification sites, using click chemistry but without alkynylation or azidation of FCCs to be investigated. The proposed platform was systematically verified by biomimetic synthesis, liver microsomal incubation, and primary hepatocyte culture. A mixture of furan, 2-methylfuran, and 2,5-dimethylfuran as model was tested by use of the established platform. A total of hepatic 171 lysine-based adducted proteins and 145 cysteine-based adducted proteins by the reactive metabolites of the three FCCs were enriched and identified (Byonic score ≥ 100). The target proteins were found to mainly participate in ATP synthesis. The technique was also successfully applied to furan-containing natural products. The established platform made it possible to profile covalently adducted proteins, because of potential exposure to a vast inventory of over two million of FCCs documented.
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Affiliation(s)
- Wei Li
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P. R. China
| | - Zixia Hu
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P. R. China
| | - Chen Sun
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P. R. China
| | - Yuwei Wang
- Department of Pharmacognosy and Utilization Key Laboratory of Northeast Plant Materials, School of Traditional Chinese Medicine, Shenyang Pharmaceutical University, Shenyang 110016, P. R. China
| | - Weiwei Li
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, Guizhou 550025, P. R. China
| | - Ying Peng
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P. R. China
| | - Jiang Zheng
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P. R. China
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, Guizhou 550025, P. R. China
- Key Laboratory of Environmental Pollution, Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang, 550025, P. R. China
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14
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You Y, Wang X, Ma K, Li J, Peng Y, Zheng J. Metabolic Activation of Atomoxetine Mediated by Cytochrome P450 2D6. Chem Res Toxicol 2021; 34:2135-2144. [PMID: 34431675 DOI: 10.1021/acs.chemrestox.1c00216] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Atomoxetine (ATX) is a neurological drug widely used for the treatment of attention deficit-hyperactivity disorder. Liver injury has been documented in patients administered ATX. The mechanism of ATX's toxic action is less clear. This study is aimed to characterize reactive metabolites of ATX in vitro and in vivo to assist our understanding of the mechanisms of ATX hepatotoxicity. A hydroxylated metabolite, along with an O-dealkylation metabolite, was found in ATX-supplemented rat liver microsome incubations. Additionally, two glutathione (GSH) conjugates and two N-acetylcysteine (NAC) conjugates were observed in rat liver microsome incubations containing ATX, NADPH, and GSH or NAC. The corresponding GSH conjugates and NAC conjugates were found in bile and urine of ATX-treated rats, respectively. Recombinant P450 enzyme incubation study demonstrated that CYP2D6 dominated the metabolic activation of ATX. The insights gained from this study may be of assistance to illuminate the mechanisms of ATX-induced hepatotoxicity.
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Affiliation(s)
- Yutong You
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P.R. China
| | - Xu Wang
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P.R. China
| | - Kaiqi Ma
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P.R. China
| | - Jiaru Li
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P.R. China
| | - Ying Peng
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P.R. China
| | - Jiang Zheng
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P.R. China
- State Key Laboratory of Functions and Applications of Medicinal Plants, Key Laboratory of Pharmaceutics of Guizhou Province, Guizhou Medical University, Guiyang, Guizhou 550025, P.R. China
- Key Laboratory of Environmental Pollution, Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang, Guizhou 550025, P. R. China
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15
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Lin F, Ma Y, Pan A, Ye Y, Liu J. Quantification of Usaramine and Its N-oxide Metabolite in Rat Plasma Using Liquid Chromatography-Tandem Mass Spectrometry. J Anal Toxicol 2021; 46:512-518. [PMID: 34086913 PMCID: PMC9122504 DOI: 10.1093/jat/bkab060] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 04/29/2021] [Accepted: 06/03/2021] [Indexed: 11/13/2022] Open
Abstract
A sensitive, fast and robust liquid chromatography--tandem mass spectrometry (LC–MS-MS) method was developed and validated for the determination of usaramine (URM) and usaramine N-oxide (UNO) in rat plasma. The separation was conducted on an ACQUITY UPLC BEH C18 Column (50 × 2.1 mm, 1.7 μm) and gradient eluted with mobile phase A (0.1% formic acid with 5 mM ammonium acetate in water) and B (0.1% formic acid in acetonitrile/methanol, 9/1, v/v). The method was linear over the range of 1–2,000 ng/mL for both analytes. The validated method was applied to investigate the pharmacokinetic behaviors and sex differences of URM and its N-oxide metabolite in rats. After intravenous administration of URM at 1 mg/kg, the AUC0-t values for URM and UNO were 363 ± 65 and 172 ± 32 ng/mL*h in male rats, while 744 ± 122 and 30.7 ± 7.4 ng/mL*h in females, respectively. The clearance of URM was significantly higher in male rats than in females (2.77 ± 0.50 vs 1.35 ± 0.19 L/h/kg, P < 0.05). After oral administration of URM at 10 mg/kg, the AUC0-t values of URM and UNO were 1,960 ± 208 and 1,637 ± 246 ng/mL*h in male rats, while 6,073 ± 488 and 300 ± 62 ng/mL*h in females, respectively. The oral bioavailability of URM in female rats (81.7%) was much higher than in males (54.0%). In conclusion, sex-based differences were observed in the pharmacokinetics, N-oxide metabolism and oral bioavailability of URM.
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Affiliation(s)
- Feifei Lin
- School of Chinese Materia Medica, Nanjing University of Chinese Medicine, 138 Xianlin Avenue, Qixia District, Nanjing 210023, China.,Chinese Academy of Sciences, Shanghai Institute of Materia Medica, 555 Zuchongzhi Road, Shanghai 201203, China
| | - Yan Ma
- Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, 536 Changle Road, Shanghai 200126, China
| | - Anni Pan
- Chinese Academy of Sciences, Shanghai Institute of Materia Medica, 555 Zuchongzhi Road, Shanghai 201203, China
| | - Yang Ye
- School of Chinese Materia Medica, Nanjing University of Chinese Medicine, 138 Xianlin Avenue, Qixia District, Nanjing 210023, China.,Chinese Academy of Sciences, Shanghai Institute of Materia Medica, 555 Zuchongzhi Road, Shanghai 201203, China
| | - Jia Liu
- Chinese Academy of Sciences, Shanghai Institute of Materia Medica, 555 Zuchongzhi Road, Shanghai 201203, China
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16
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Dai Y, Luo J, Xiang E, Guo Q, He Z, Gong Z, Sun X, Kou H, Xu K, Fan C, Liu J, Qiu S, Wang Y, Wang H, Guo Y. Prenatal Exposure to Retrorsine Induces Developmental Toxicity and Hepatotoxicity of Fetal Rats in a Sex-Dependent Manner: The Role of Pregnane X Receptor Activation. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:3219-3231. [PMID: 33685126 DOI: 10.1021/acs.jafc.0c06748] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Pyrrolizidine alkaloids (PAs) are a type of natural phytotoxin that contaminate food and feed and become an environmental health risk to humans and livestock. PAs exert toxicity that requires metabolic activation by cytochrome P450 (CYP) 3A, and case reports showed that fetuses are quite susceptible to PAs toxicity. The aim of this study was to explore the characteristics of developmental toxicity and fetal hepatotoxicity induced by retrorsine (RTS, a typcial toxic PA) and the underlying mechanism. Pregnant Wistar rats were intragastrically administered with 20 mg/(kg·day) RTS from gestation day (GD) 9 to 20. Results showed that prenatal RTS exposure lowered fetal bodyweights, reduced hepatocyte numbers, and potentiated hepatic apoptosis in fetuses, particularly females. Simutaneously, RTS increased CYP3A expression and pregnane X receptor (PXR) activation in female fetal liver. We further confirmed that RTS was a PXR agonist in LO2 and HepG2 cell lines. Furthermore, agonism or antagonism of androgen receptor (AR) either induced or blocked RTS-mediated PXR activation, respectively. As a PXR agonist, RTS toxicity was exacerbated in female fetus due to the increased CYP3A induction and self-metabolism, while the inhibitory effect of AR on PXR activation reduced the susceptibility of male fetus to RTS. Our findings indicated that PXR may be a potential therapeutic target for PA toxicity.
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Affiliation(s)
- Yongguo Dai
- Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan, 430071 Hubei Province, China
- Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, 430071 Hubei Province, China
| | - Jinyuan Luo
- Department of Ophthalmology, Renmin Hospital of Wuhan University, Wuhan, 430060 Hubei Province, China
| | - E Xiang
- Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan, 430071 Hubei Province, China
- Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, 430071 Hubei Province, China
| | - Qi Guo
- Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan, 430071 Hubei Province, China
- Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, 430071 Hubei Province, China
| | - Zheng He
- Department of Pharmacy, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Zheng Gong
- Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan, 430071 Hubei Province, China
- Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, 430071 Hubei Province, China
| | - Xiaoxiang Sun
- Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan, 430071 Hubei Province, China
- Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, 430071 Hubei Province, China
| | - Hao Kou
- Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, 430071 Hubei Province, China
- Department of Pharmacy, Zhongnan Hospital of Wuhan University, Wuhan, 430071 Hubei Province, China
| | - Kequan Xu
- Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan, 430071 Hubei Province, China
- Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, 430071 Hubei Province, China
| | - Chengpeng Fan
- Department of Biochemistry and Molecular Biology, Wuhan University School of Basic Medical Sciences, Wuhan, 430071 Hubei Province, China
| | - Jie Liu
- Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan, 430071 Hubei Province, China
- Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, 430071 Hubei Province, China
| | - Shuaikai Qiu
- Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan, 430071 Hubei Province, China
- Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, 430071 Hubei Province, China
| | - Yanqing Wang
- Gynecology and Obstetrics, Renmin Hospital of Wuhan University, Wuhan, 430060 Hubei Province, China
| | - Hui Wang
- Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan, 430071 Hubei Province, China
- Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, 430071 Hubei Province, China
| | - Yu Guo
- Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan, 430071 Hubei Province, China
- Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, 430071 Hubei Province, China
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17
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Lei Y, Zhang B, Liu D, Zhao J, Dai X, Gao J, Mao Q, Feng Y, Zhao J, Lin F, Duan Y, Zhang Y, Bao Z, Yang Y, Mou Y, Wang S. Switching a Xanthine Oxidase Inhibitor to a Dual-Target Antagonist of P2Y1 and P2Y12 as an Oral Antiplatelet Agent with a Wider Therapeutic Window in Rats than Ticagrelor. J Med Chem 2020; 63:15752-15772. [DOI: 10.1021/acs.jmedchem.0c01524] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Yu Lei
- Key Laboratory of Structure-Based Drugs Design & Discovery of Ministry of Education, School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, 103 Culture Road, Shenhe District, Shenyang 110016, China
| | - Bing Zhang
- Key Laboratory of Structure-Based Drugs Design & Discovery of Ministry of Education, School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, 103 Culture Road, Shenhe District, Shenyang 110016, China
| | - Dan Liu
- Shenyang Hinewy Pharmaceutical Technology Co., Ltd., 41 Liutang Road, Shenhe District, Shenyang 110016, China
| | - Jian Zhao
- Department of Pharmacology, Shenyang Pharmaceutical University, 103 Culture Road, Shenhe District, Shenyang 110016, China
| | - Xiwen Dai
- Key Laboratory of Structure-Based Drugs Design & Discovery of Ministry of Education, School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, 103 Culture Road, Shenhe District, Shenyang 110016, China
| | - Jun Gao
- Key Laboratory of Structure-Based Drugs Design & Discovery of Ministry of Education, School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, 103 Culture Road, Shenhe District, Shenyang 110016, China
| | - Qing Mao
- Key Laboratory of Structure-Based Drugs Design & Discovery of Ministry of Education, School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, 103 Culture Road, Shenhe District, Shenyang 110016, China
| | - Yao Feng
- Key Laboratory of Structure-Based Drugs Design & Discovery of Ministry of Education, School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, 103 Culture Road, Shenhe District, Shenyang 110016, China
| | - Jiaxing Zhao
- Key Laboratory of Structure-Based Drugs Design & Discovery of Ministry of Education, School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, 103 Culture Road, Shenhe District, Shenyang 110016, China
| | - Fengwei Lin
- Key Laboratory of Structure-Based Drugs Design & Discovery of Ministry of Education, School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, 103 Culture Road, Shenhe District, Shenyang 110016, China
| | - Yulin Duan
- Key Laboratory of Structure-Based Drugs Design & Discovery of Ministry of Education, School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, 103 Culture Road, Shenhe District, Shenyang 110016, China
| | - Yan Zhang
- Department of Pharmacology, Shenyang Pharmaceutical University, 103 Culture Road, Shenhe District, Shenyang 110016, China
| | - Ziyang Bao
- Key Laboratory of Structure-Based Drugs Design & Discovery of Ministry of Education, School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, 103 Culture Road, Shenhe District, Shenyang 110016, China
| | - Yuwei Yang
- Key Laboratory of Structure-Based Drugs Design & Discovery of Ministry of Education, School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, 103 Culture Road, Shenhe District, Shenyang 110016, China
| | - Yanhua Mou
- Department of Pharmacology, Shenyang Pharmaceutical University, 103 Culture Road, Shenhe District, Shenyang 110016, China
| | - Shaojie Wang
- Key Laboratory of Structure-Based Drugs Design & Discovery of Ministry of Education, School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, 103 Culture Road, Shenhe District, Shenyang 110016, China
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Li Q, Li W, Zhao J, Guo X, Zou Q, Yang Z, Tian R, Peng Y, Zheng J. Glutathione Conjugation and Protein Adduction by Environmental Pollutant 2,4-Dichlorophenol In Vitro and In Vivo. Chem Res Toxicol 2020; 33:2351-2360. [PMID: 32786540 DOI: 10.1021/acs.chemrestox.0c00118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
2,4-Dichlorophenol (2,4-DCP), an environmental pollutant, was reported to cause hepatotoxicity. The biochemical mechanisms of 2,4-DCP induced liver injury remain unknown. The present study showed that 2,4-DCP is chemically reactive and spontaneously reacts with GSH and bovine serum albumin to form GSH conjugates and BSA adducts. The observed conjugation/adduction apparently involved the addition of GSH and departure of chloride via the ipso substitution pathway. Two biliary GSH conjugates and one urinary N-acetyl cysteine conjugate were observed in rats given 2,4-DCP. The N-acetyl cysteine conjugate was chemically synthesized and characterized by mass spectrometry and NMR. As expected, 2,4-DCP was found to modify hepatic protein at cysteine residues in vivo by the same chemistry. The observed protein adduction reached its peak at 15 min and revealed dose dependency. The new findings allowed us to better understand the mechanisms of the toxic action of 2,4-DCP.
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Affiliation(s)
- Qingmei Li
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Wei Li
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Jiaxing Zhao
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Xiucai Guo
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Qian Zou
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Zixin Yang
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Ruixue Tian
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Ying Peng
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Jiang Zheng
- State Key Laboratory of Functions and Applications of Medicinal Plants, Key Laboratory of Pharmaceutics of Guizhou Province, Guiyang, Guizhou 550004, P. R. China.,Key Laboratory of Environmental Pollution, Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang 550025, P. R. China.,Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, China
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19
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Wang K, Gao Q, Zhang T, Rao J, Ding L, Qiu F. Inhibition of CYP2C9 by natural products: insight into the potential risk of herb-drug interactions. Drug Metab Rev 2020; 52:235-257. [DOI: 10.1080/03602532.2020.1758714] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Kai Wang
- School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, P.R. China
| | - Qing Gao
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, P.R. China
| | - Tingting Zhang
- School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, P.R. China
| | - Jinqiu Rao
- School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, P.R. China
| | - Liqin Ding
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, P.R. China
| | - Feng Qiu
- School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, P.R. China
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, P.R. China
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20
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Liu F, Rong X, Guo H, Xu D, Liu C, Meng L, Yang X, Guo T, Kan X, Song Y. Clinical characteristics, CT signs, and pathological findings of Pyrrolizidine alkaloids-induced sinusoidal obstructive syndrome: a retrospective study. BMC Gastroenterol 2020; 20:30. [PMID: 32019495 PMCID: PMC7001201 DOI: 10.1186/s12876-020-1180-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Accepted: 01/28/2020] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND One major etiology of hepatic sinusoidal obstruction syndrome (HSOS) in China is the intake of pyrrolizidine alkaloids (PAs). Since PAs-induced HSOS is a rare disease that has not been clearly characterized until now, the aim of this study was to investigate clinical characteristics, CT features, and pathological findings of PA-induced HSOS. METHODS This retrospective cohort study included 116 patients with PAs-induced HSOS and 68 patients with Budd-Chiari syndrome from Jan 2006 to Sep 2016. We collected medical records of the patients, and reviewed image features of CT, and analyzed pathological findings. RESULTS Common clinical manifestations of PAs-induced HSOS were abdominal distention (98.26%), ascites (100%), jaundice (52.94%), abdominal pain (36.36%). Abnormal liver function was observed in most of PAs-induced HSOS. On CT scan, common findings included: ascites, hepatomegaly, the thickening of gallbladder wall, pleural effusion, patchy liver enhancement, and heterogeneous hypoattenuation. Most of the patients had a low ascitic total protein (< 25 g/L) and a high SAAG (≥ 11.0 g/L). In acute stage, pathologic features were massive sinusoidal dilatation, sinusoidal congestion, the extravasation of erythrocytes, hepatocellular necrosis, the accumulation of macrophages, the deposition of hemosiderin. In subacute stage, complete loss of pericentral hepatocytes, sinusoidal dilatation, the deposition of pigment granules were observed. CONCLUSIONS The PAs-induced HSOS patients displayed distinct clinical characteristics, imaging features, and pathological findings, which provided some evidences for the diagnosis of PAs-induced HSOS. TRIAL REGISTRATION ChiCTR-DRD-17010709.
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Affiliation(s)
- Fang Liu
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Xinxin Rong
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Hui Guo
- Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Dong Xu
- Department of Infectious Diseases, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Chang Liu
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Lingling Meng
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Xiaoqian Yang
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Tingting Guo
- Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Xuefeng Kan
- Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Yuhu Song
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
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21
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Xu J, Wang W, Yang X, Xiong A, Yang L, Wang Z. Pyrrolizidine alkaloids: An update on their metabolism and hepatotoxicity mechanism. LIVER RESEARCH 2019. [DOI: 10.1016/j.livres.2019.11.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
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22
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Wang H, Wang W, Gong B, Wang Z, Feng Y, Zhang W, Wang S, Peng Y, Zheng J. Glutathione Conjugation and Protein Adduction Derived from Oxidative Debromination of Benzbromarone in Mice. Drug Metab Dispos 2019; 47:1281-1290. [DOI: 10.1124/dmd.119.087460] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Accepted: 08/10/2019] [Indexed: 01/09/2023] Open
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23
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Guo X, Chen Y, Li Q, Yang X, Zhao G, Peng Y, Zheng J. Studies on hepatotoxicity and toxicokinetics of colchicine. J Biochem Mol Toxicol 2019; 33:e22366. [DOI: 10.1002/jbt.22366] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 04/29/2019] [Accepted: 07/02/2019] [Indexed: 12/31/2022]
Affiliation(s)
- Xiucai Guo
- Wuya College of InnovationShenyang Pharmaceutical University Shenyang China
| | - Yan Chen
- Wuya College of InnovationShenyang Pharmaceutical University Shenyang China
| | - Qingmei Li
- Wuya College of InnovationShenyang Pharmaceutical University Shenyang China
| | - Xiaojing Yang
- Wuya College of InnovationShenyang Pharmaceutical University Shenyang China
| | - Guode Zhao
- School of Pharmaceutical EngineeringShenyang Pharmaceutical University Shenyang China
| | - Ying Peng
- Wuya College of InnovationShenyang Pharmaceutical University Shenyang China
| | - Jiang Zheng
- Wuya College of InnovationShenyang Pharmaceutical University Shenyang China
- State Key Laboratory of Functions and Applications of Medicinal PlantsGuizhou Medical University Guiyang Guizhou China
- Key Laboratory of Pharmaceutics of Guizhou ProvinceGuizhou Medical University Guiyang Guizhou China
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24
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Intestinal and hepatic biotransformation of pyrrolizidine alkaloid N-oxides to toxic pyrrolizidine alkaloids. Arch Toxicol 2019; 93:2197-2209. [PMID: 31222523 DOI: 10.1007/s00204-019-02499-2] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Accepted: 06/17/2019] [Indexed: 10/26/2022]
Abstract
Pyrrolizidine alkaloids (PAs) are among the most significant groups of phytotoxins present in more than 6000 plants in the world. Hepatotoxic retronecine-type PAs and their corresponding N-oxides usually co-exist in plants. Although PA-induced hepatotoxicity is known for a long time and has been extensively studied, the toxicity of PA N-oxide is rarely investigated. Recently, we reported PA N-oxide-induced hepatotoxicity in humans and rodents and also suggested the association of such toxicity with metabolic conversion of PA N-oxides to the corresponding toxic PAs. However, the detailed biochemical mechanism of PA N-oxide-induced hepatotoxicity is largely unknown. The present study investigated biotransformation of four representative cyclic retronecine-type PA N-oxides to their corresponding PAs in both gastrointestinal tract and liver. The results demonstrated that biotransformation of PA N-oxides to PAs was mediated by both intestinal microbiota and hepatic cytochrome P450 monooxygenases (CYPs), in particular CYP1A2 and CYP2D6. Subsequently, the formed PAs were metabolically activated predominantly by hepatic CYPs to form reactive metabolites exerting hepatotoxicity. Our findings delineated, for the first time, that the metabolism-mediated mechanism of PA N-oxide intoxication involved metabolic reduction of PA N-oxides to their corresponding PAs in both intestine and liver followed by oxidative bioactivation of the resultant PAs in the liver to generate reactive metabolites which interact with cellular proteins leading to hepatotoxicity. In addition, our results raised a public concern and also encouraged further investigations on potentially remarkable variations in PA N-oxide-induced hepatotoxicity caused by significantly altered intestinal microbiota due to individual differences in diets, life styles, and medications.
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25
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Luo J, Yang X, Qiu S, Li X, Xiang E, Fang Y, Wang Y, Zhang L, Wang H, Zheng J, Guo Y. Sex difference in monocrotaline-induced developmental toxicity and fetal hepatotoxicity in rats. Toxicology 2019; 418:32-40. [PMID: 30825512 DOI: 10.1016/j.tox.2019.02.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 02/20/2019] [Accepted: 02/25/2019] [Indexed: 12/15/2022]
Abstract
Pyrrolizidine alkaloids (PAs) are a class of hepatic toxins widely existing in plants. Cytochromes P450 (CYP) mediates PA bioactivation and toxicities in mammals. It has been reported that PAs can induce developmental toxicity, but systematic research is lacking. In this study, we investigated developmental toxicity of monocrotaline (MCT) in rats. Pregnant rats were administered with MCT (20 mg/kg) intragastrically from gestation day 9 to 20, followed by determination of changes in fetal growth, hepatic morphology, serum biochemical indices, and indicators of hepatocytes apoptosis. MCT was found to induce developmental toxicity and fetal hepatotoxicity, particularly in female fetuses. Metabolic activation was also studied by examination of bioactivation efficiency of MCT in fetal liver microsomes, serum MCT, pyrrole-protein adduction derived from MCT, and hepatic CYP3 A expression of fetuses in vivo. Male fetuses showed greater basal MCT bioactivation than that of female fetuses, but continuous exposure to MCT caused a selective CYP3 A induction in female fetuses, which may contribute to the sex difference in MCT-induced developmental toxicity.
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Affiliation(s)
- Jinyuan Luo
- Department of Pharmacology, School of Basic Medical Science, Wuhan University, Wuhan 430071, People's Republic of China; Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan 430071, People's Republic of China.
| | - Xiaojing Yang
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning, 110016, People's Republic of China.
| | - Shuaikai Qiu
- Department of Pharmacology, School of Basic Medical Science, Wuhan University, Wuhan 430071, People's Republic of China; Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan 430071, People's Republic of China.
| | - Xia Li
- Department of Pharmacology, School of Basic Medical Science, Wuhan University, Wuhan 430071, People's Republic of China; Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan 430071, People's Republic of China.
| | - E Xiang
- Department of Pharmacology, School of Basic Medical Science, Wuhan University, Wuhan 430071, People's Republic of China; Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan 430071, People's Republic of China.
| | - Yan Fang
- Department of Pharmacology, School of Basic Medical Science, Wuhan University, Wuhan 430071, People's Republic of China; Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan 430071, People's Republic of China.
| | - Yanqing Wang
- Gynecology and Obstetrics, Renmin Hospital of Wuhan University, Wuhan 430060, People's Republic of China.
| | - Li Zhang
- Department of Pathology, School of Basic Medical Science, Wuhan University, Wuhan 430071, People's Republic of China.
| | - Hui Wang
- Department of Pharmacology, School of Basic Medical Science, Wuhan University, Wuhan 430071, People's Republic of China; Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan 430071, People's Republic of China.
| | - Jiang Zheng
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning, 110016, People's Republic of China; State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, Guizhou, 550004, People's Republic of China; Key Laboratory of Pharmaceutics of Guizhou Province, Guizhou Medical University, Guiyang, Guizhou, 550004, People's Republic of China.
| | - Yu Guo
- Department of Pharmacology, School of Basic Medical Science, Wuhan University, Wuhan 430071, People's Republic of China; Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan 430071, People's Republic of China.
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26
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Schramm S, Köhler N, Rozhon W. Pyrrolizidine Alkaloids: Biosynthesis, Biological Activities and Occurrence in Crop Plants. Molecules 2019; 24:E498. [PMID: 30704105 PMCID: PMC6385001 DOI: 10.3390/molecules24030498] [Citation(s) in RCA: 83] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 01/28/2019] [Accepted: 01/29/2019] [Indexed: 12/13/2022] Open
Abstract
Pyrrolizidine alkaloids (PAs) are heterocyclic secondary metabolites with a typical pyrrolizidine motif predominantly produced by plants as defense chemicals against herbivores. They display a wide structural diversity and occur in a vast number of species with novel structures and occurrences continuously being discovered. These alkaloids exhibit strong hepatotoxic, genotoxic, cytotoxic, tumorigenic, and neurotoxic activities, and thereby pose a serious threat to the health of humans since they are known contaminants of foods including grain, milk, honey, and eggs, as well as plant derived pharmaceuticals and food supplements. Livestock and fodder can be affected due to PA-containing plants on pastures and fields. Despite their importance as toxic contaminants of agricultural products, there is limited knowledge about their biosynthesis. While the intermediates were well defined by feeding experiments, only one enzyme involved in PA biosynthesis has been characterized so far, the homospermidine synthase catalyzing the first committed step in PA biosynthesis. This review gives an overview about structural diversity of PAs, biosynthetic pathways of necine base, and necic acid formation and how PA accumulation is regulated. Furthermore, we discuss their role in plant ecology and their modes of toxicity towards humans and animals. Finally, several examples of PA-producing crop plants are discussed.
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Affiliation(s)
- Sebastian Schramm
- Biotechnology of Horticultural Crops, TUM School of Life Sciences Weihenstephan, Technical University of Munich, Liesel-Beckmann-Straße 1, 85354 Freising, Germany.
| | - Nikolai Köhler
- Biotechnology of Horticultural Crops, TUM School of Life Sciences Weihenstephan, Technical University of Munich, Liesel-Beckmann-Straße 1, 85354 Freising, Germany.
| | - Wilfried Rozhon
- Biotechnology of Horticultural Crops, TUM School of Life Sciences Weihenstephan, Technical University of Munich, Liesel-Beckmann-Straße 1, 85354 Freising, Germany.
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27
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Chen Y, Yu J, Wang X, Li H, Mao X, Peng Y, Zheng J. Characterization of glutathione conjugates derived from reactive metabolites of seven silymarin isomers. Xenobiotica 2019; 49:1269-1278. [PMID: 30489204 DOI: 10.1080/00498254.2018.1549340] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
1. Silymarin refers to a class of flavonoid lignans occurring in the fruits and seeds of the Silybum manalttlm (L). Gaertn, and is widely used in dietary supplements. 2. The main active ingredients of silymarin are silychristins A and B, silydianin, silybins A and B, and isosilybins A and B. However, the metabolism of silymarin has never been investigated. The major objectives of the present study were to investigate the metabolic pathways of silymarin isomers and to identify reactive metabolites. 3. Fourteen glutathione (GSH) conjugates were detected in rat/human liver microsomes incubations containing NADPH, GSH and seven individual isomers. Seven GSH conjugates (M1-M7) resulted from demethylated silymarin. M8-M14 originated from hydroxylated silymarin. Moreover, we found that GSH was probably conjugated on either ring A or ring E of silymarin based on the mass spectrometric fragments. In addition, recombinant enzyme incubation experiments demonstrated that CYP3A4 was the predominant P450 responsible for the metabolism of silymarin. 4. Several P450 enzymes were reportedly inactivated by some of bioactive constituents of silymarin to some extent. Our findings facilitate the understanding of mechanisms of the reported inactivation of P450 enzymes induced by silymarin.
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Affiliation(s)
- Yan Chen
- c Wuya College of Innovation, Shenyang Pharmaceutical University , Shenyang , Liaoning , P. R. China
| | - Jing Yu
- c Wuya College of Innovation, Shenyang Pharmaceutical University , Shenyang , Liaoning , P. R. China
| | - Xu Wang
- c Wuya College of Innovation, Shenyang Pharmaceutical University , Shenyang , Liaoning , P. R. China
| | - Hui Li
- c Wuya College of Innovation, Shenyang Pharmaceutical University , Shenyang , Liaoning , P. R. China
| | - Xu Mao
- c Wuya College of Innovation, Shenyang Pharmaceutical University , Shenyang , Liaoning , P. R. China
| | - Ying Peng
- c Wuya College of Innovation, Shenyang Pharmaceutical University , Shenyang , Liaoning , P. R. China
| | - Jiang Zheng
- a State Key Laboratory of Functions and Applications of Medicinal Plants, Pharmaceutics of Guizhou Province, Guizhou Medical University , Guiyang , Guizhou , P. R. China.,b Key Laboratory of Pharmaceutics of Guizhou Province, Guizhou Medical University , Guiyang , Guizhou , P. R. China.,c Wuya College of Innovation, Shenyang Pharmaceutical University , Shenyang , Liaoning , P. R. China
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28
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Yang X, Li W, Li H, Wang X, Chen Y, Guo X, Peng Y, Zheng J. A Difference in Internal Exposure Makes Newly Weaned Mice More Susceptible to the Hepatotoxicity of Retrorsine Than Adult Mice. Chem Res Toxicol 2018; 31:1348-1355. [DOI: 10.1021/acs.chemrestox.8b00220] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Xiaojing Yang
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P. R. China
| | - Weiwei Li
- State Key Laboratory of Functions and Applications of Medicinal Plants, Key Laboratory of Pharmaceutics of Guizhou Province, Guizhou Medical University, Guiyang, Guizhou 550004, P. R. China
| | - Hui Li
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P. R. China
| | - Xu Wang
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P. R. China
| | - Yan Chen
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P. R. China
| | - Xiucai Guo
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P. R. China
| | - Ying Peng
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P. R. China
| | - Jiang Zheng
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P. R. China
- State Key Laboratory of Functions and Applications of Medicinal Plants, Key Laboratory of Pharmaceutics of Guizhou Province, Guizhou Medical University, Guiyang, Guizhou 550004, P. R. China
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29
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Jin M, Guo N, Li T, Liu X, Sun S, Jin X, Zhu H, Qin H, Wang Y. Comprehensive characterization of in vitro and in vivo metabolites of 2',3',5'‑tri‑O‑acetyl‑N 6‑(3‑hydroxyphenyl) adenosine and study of the metabolites distribution in rats by combined methods of HPLC-DAD, off-line cryoNMR, and HPLC-QTOFMS. J Chromatogr B Analyt Technol Biomed Life Sci 2018; 1096:187-200. [PMID: 30176508 DOI: 10.1016/j.jchromb.2018.08.028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Revised: 08/23/2018] [Accepted: 08/25/2018] [Indexed: 10/28/2022]
Abstract
The compound 2',3',5'‑tri‑O‑acetyl‑N6‑(3‑hydroxyphenyl) adenosine (also known as IMM-H007) is a new adenosine analogue that displays anti-hyperlipidaemic activity in many preliminary studies. To clarify its biotransformation process, in vitro and in vivo metabolic patterns of IMM-H007 in rat liver microsomes (RLMs), urine, feces, serum, and various tissues were investigated using high-performance liquid chromatography coupled to a diode array detector (HPLC-DAD), off-line cryogenically cooled probe nuclear magnetic resonance (cryoNMR), and high-performance liquid chromatography quadrupole TOF MS (HPLC-QTOFMS) measurements. A total of 21 metabolites were detected and identified based on accurate mass measurements, diagnostic product ions, and 1D and 2D NMR data. All of the 21 metabolites were detected in vivo besides the 7 ones (LM1-3, LM4a-b, LM5, LM6 (M8)) in vitro. Among them, eight metabolites were phase I metabolites composed of the hydrolysis products LM1-3, LM4a, LM4b, LM5 and M7-8, and hydrolysis and hydroxylation products M6. Others were phase II metabolites including glucuronidation products M2, M4, M9, M11a-c, and M12a-c; and sulfation products M3, M5, and M10. Notably, 14 metabolites (LM1-3, LM4a-b, LM5, M9-10, M11a-c, M12a-c) were unreported before and the distribution of IMM-H007 and its all metabolites was reported for the first time. The results revealed IMM-H007 was metabolized mainly in the small intestine and serum, kidney, stomach, small and large intestines were important samples for metabolites presence. This work improves understanding of the metabolism, distribution, and excretion of IMM-H007, and demonstrates the HPLC/HPLC-MS/off-line cryoNMR approach can be applied for detection and identification of metabolites in complex biological matrices.
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Affiliation(s)
- Mengxia Jin
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines & Ministry of Health Key Laboratory of Biosynthesis of Natural Products, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Na Guo
- Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing, China
| | - Tianqi Li
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines & Ministry of Health Key Laboratory of Biosynthesis of Natural Products, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xia Liu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines & Ministry of Health Key Laboratory of Biosynthesis of Natural Products, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Shanshan Sun
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines & Ministry of Health Key Laboratory of Biosynthesis of Natural Products, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xiangju Jin
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines & Ministry of Health Key Laboratory of Biosynthesis of Natural Products, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Haibo Zhu
- Beijing Key Laboratory of New Drug Mechanisms and Pharmacological Evaluation Study, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Hailin Qin
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines & Ministry of Health Key Laboratory of Biosynthesis of Natural Products, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yinghong Wang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines & Ministry of Health Key Laboratory of Biosynthesis of Natural Products, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
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30
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Li X, Yang X, Xiang E, Luo J, Qiu S, Fang Y, Zhang L, Guo Y, Zheng J, Wang H. Maternal-Fetal Disposition and Metabolism of Retrorsine in Pregnant Rats. Drug Metab Dispos 2018; 46:422-428. [PMID: 29352068 DOI: 10.1124/dmd.117.079186] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Accepted: 01/17/2018] [Indexed: 11/22/2022] Open
Abstract
Pyrrolizidine alkaloids (PAs) are extensively synthesized by plants, are commonly present in herbs and foodstuffs, and exhibit hepatotoxicity requiring metabolic activation by cytochrome P450 3A to form the electrophilic metabolites-pyrrolic esters. PAs also cause embryo toxicity, but the metabolic profiles of PAs in fetus and placenta have been far from clear. In this study, we determined the basal metabolic activation of retrorsine (RTS) in rat maternal liver, placenta, and fetal liver in vitro and examined the fetal toxicity and bioactivation of RTS in vivo. Detection of microsomal RTS metabolites in vitro showed that the basal metabolic activity of fetal liver and placenta to RTS was much weaker than that of maternal liver. In addition, a higher rate of pyrrolic ester formation was found in normal male fetal liver compared with that of female pups. In vivo exposure to RTS caused fetal growth retardation, as well as placental and fetal liver injury. Little difference in serum RTS was observed in dams and fetuses, but the content of pyrrole-protein adduction in the fetal liver was much lower than that in maternal liver, which was consistent with basal metabolic activity. Unexpectedly, compared with basal metabolism in fetal liver, exposure to RTS during middle and late pregnancy caused an opposite gender difference in RTS metabolism and CYP3A expression in the fetal liver. For the first time, our study showed that RTS can permeate the placenta barrier and entering fetal circulation, whereas the intrauterine pyrrolic metabolite was generated mainly by fetal liver but not transported from the maternal circulation. Induction of CYP3A by RTS was gender-dependent in the fetal liver, which was probably responsible for RTS-induced fetal hepatic injury, especially for female pups.
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Affiliation(s)
- Xia Li
- Department of Pharmacology, School of Basic Medical Science, Wuhan University, Wuhan (X.L., E.X., J.L., S.Q., Y.F., Y.G., H.W.); and Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan University, Wuhan (Y.G., H.W.); Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning (X.Y., J.Z.); and State Key Laboratory of Functions and Applications of Medicinal Plants, Key Laboratory of Pharmaceutics of Guizhou Province, Guizhou Medical University, Guiyang, Guizhou (J.Z.); Department of Pathology, School of Basic Medical Science, Wuhan University, Wuhan (L.Z.), China
| | - Xiaojing Yang
- Department of Pharmacology, School of Basic Medical Science, Wuhan University, Wuhan (X.L., E.X., J.L., S.Q., Y.F., Y.G., H.W.); and Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan University, Wuhan (Y.G., H.W.); Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning (X.Y., J.Z.); and State Key Laboratory of Functions and Applications of Medicinal Plants, Key Laboratory of Pharmaceutics of Guizhou Province, Guizhou Medical University, Guiyang, Guizhou (J.Z.); Department of Pathology, School of Basic Medical Science, Wuhan University, Wuhan (L.Z.), China
| | - E Xiang
- Department of Pharmacology, School of Basic Medical Science, Wuhan University, Wuhan (X.L., E.X., J.L., S.Q., Y.F., Y.G., H.W.); and Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan University, Wuhan (Y.G., H.W.); Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning (X.Y., J.Z.); and State Key Laboratory of Functions and Applications of Medicinal Plants, Key Laboratory of Pharmaceutics of Guizhou Province, Guizhou Medical University, Guiyang, Guizhou (J.Z.); Department of Pathology, School of Basic Medical Science, Wuhan University, Wuhan (L.Z.), China
| | - Jinyuan Luo
- Department of Pharmacology, School of Basic Medical Science, Wuhan University, Wuhan (X.L., E.X., J.L., S.Q., Y.F., Y.G., H.W.); and Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan University, Wuhan (Y.G., H.W.); Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning (X.Y., J.Z.); and State Key Laboratory of Functions and Applications of Medicinal Plants, Key Laboratory of Pharmaceutics of Guizhou Province, Guizhou Medical University, Guiyang, Guizhou (J.Z.); Department of Pathology, School of Basic Medical Science, Wuhan University, Wuhan (L.Z.), China
| | - Shuaikai Qiu
- Department of Pharmacology, School of Basic Medical Science, Wuhan University, Wuhan (X.L., E.X., J.L., S.Q., Y.F., Y.G., H.W.); and Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan University, Wuhan (Y.G., H.W.); Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning (X.Y., J.Z.); and State Key Laboratory of Functions and Applications of Medicinal Plants, Key Laboratory of Pharmaceutics of Guizhou Province, Guizhou Medical University, Guiyang, Guizhou (J.Z.); Department of Pathology, School of Basic Medical Science, Wuhan University, Wuhan (L.Z.), China
| | - Yan Fang
- Department of Pharmacology, School of Basic Medical Science, Wuhan University, Wuhan (X.L., E.X., J.L., S.Q., Y.F., Y.G., H.W.); and Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan University, Wuhan (Y.G., H.W.); Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning (X.Y., J.Z.); and State Key Laboratory of Functions and Applications of Medicinal Plants, Key Laboratory of Pharmaceutics of Guizhou Province, Guizhou Medical University, Guiyang, Guizhou (J.Z.); Department of Pathology, School of Basic Medical Science, Wuhan University, Wuhan (L.Z.), China
| | - Li Zhang
- Department of Pharmacology, School of Basic Medical Science, Wuhan University, Wuhan (X.L., E.X., J.L., S.Q., Y.F., Y.G., H.W.); and Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan University, Wuhan (Y.G., H.W.); Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning (X.Y., J.Z.); and State Key Laboratory of Functions and Applications of Medicinal Plants, Key Laboratory of Pharmaceutics of Guizhou Province, Guizhou Medical University, Guiyang, Guizhou (J.Z.); Department of Pathology, School of Basic Medical Science, Wuhan University, Wuhan (L.Z.), China
| | - Yu Guo
- Department of Pharmacology, School of Basic Medical Science, Wuhan University, Wuhan (X.L., E.X., J.L., S.Q., Y.F., Y.G., H.W.); and Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan University, Wuhan (Y.G., H.W.); Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning (X.Y., J.Z.); and State Key Laboratory of Functions and Applications of Medicinal Plants, Key Laboratory of Pharmaceutics of Guizhou Province, Guizhou Medical University, Guiyang, Guizhou (J.Z.); Department of Pathology, School of Basic Medical Science, Wuhan University, Wuhan (L.Z.), China
| | - Jiang Zheng
- Department of Pharmacology, School of Basic Medical Science, Wuhan University, Wuhan (X.L., E.X., J.L., S.Q., Y.F., Y.G., H.W.); and Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan University, Wuhan (Y.G., H.W.); Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning (X.Y., J.Z.); and State Key Laboratory of Functions and Applications of Medicinal Plants, Key Laboratory of Pharmaceutics of Guizhou Province, Guizhou Medical University, Guiyang, Guizhou (J.Z.); Department of Pathology, School of Basic Medical Science, Wuhan University, Wuhan (L.Z.), China
| | - Hui Wang
- Department of Pharmacology, School of Basic Medical Science, Wuhan University, Wuhan (X.L., E.X., J.L., S.Q., Y.F., Y.G., H.W.); and Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan University, Wuhan (Y.G., H.W.); Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning (X.Y., J.Z.); and State Key Laboratory of Functions and Applications of Medicinal Plants, Key Laboratory of Pharmaceutics of Guizhou Province, Guizhou Medical University, Guiyang, Guizhou (J.Z.); Department of Pathology, School of Basic Medical Science, Wuhan University, Wuhan (L.Z.), China
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Kolrep F, Numata J, Kneuer C, Preiss-Weigert A, Lahrssen-Wiederholt M, Schrenk D, These A. In vitro biotransformation of pyrrolizidine alkaloids in different species. Part I: Microsomal degradation. Arch Toxicol 2017; 92:1089-1097. [PMID: 29143854 PMCID: PMC5866832 DOI: 10.1007/s00204-017-2114-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Accepted: 11/08/2017] [Indexed: 11/29/2022]
Abstract
Pyrrolizidine alkaloids (PA) are secondary metabolites of certain flowering plants. The ingestion of PAs may result in acute and chronic effects in man and livestock with hepatotoxicity, mutagenicity, and carcinogenicity being identified as predominant effects. Several hundred PAs sharing the diol pyrrolizidine as a core structure are formed by plants. Although many congeners may cause adverse effects, differences in the toxic potency have been detected in animal tests. It is generally accepted that PAs themselves are biologically and toxicologically inactive and require metabolic activation. Consequently, a strong relationship between activating metabolism and toxicity can be expected. Concerning PA susceptibility, marked differences between species were reported with a comparatively high susceptibility in horses, while goat and sheep seem to be almost resistant. Therefore, we investigated the in vitro degradation rate of four frequently occurring PAs by liver enzymes present in S9 fractions from human, pig, cow, horse, rat, rabbit, goat, and sheep liver. Unexpectedly, almost no metabolic degradation of any PA was observed for susceptible species such as human, pig, horse, or cow. If the formation of toxic metabolites represents a crucial bioactivation step, the found inverse conversion rates of PAs compared to the known susceptibility require further investigation.
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Affiliation(s)
- Franziska Kolrep
- German Federal Institute for Risk Assessment, Max-Dohrn-Straße 8-10, 10589, Berlin, Germany
| | - Jorge Numata
- German Federal Institute for Risk Assessment, Max-Dohrn-Straße 8-10, 10589, Berlin, Germany
| | - Carsten Kneuer
- German Federal Institute for Risk Assessment, Max-Dohrn-Straße 8-10, 10589, Berlin, Germany
| | | | | | - Dieter Schrenk
- University of Kaiserslautern, Food Chemistry and Toxicology, Erwin-Schrödinger-Straße 52, 67663, Kaiserslautern, Germany
| | - Anja These
- German Federal Institute for Risk Assessment, Max-Dohrn-Straße 8-10, 10589, Berlin, Germany.
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Wang H, Peng Y, Zhang T, Lan Q, Zhao H, Wang W, Zhao Y, Wang X, Pang J, Wang S, Zheng J. Metabolic Epoxidation Is a Critical Step for the Development of Benzbromarone-Induced Hepatotoxicity. Drug Metab Dispos 2017; 45:1354-1363. [PMID: 29021351 DOI: 10.1124/dmd.117.077818] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2017] [Accepted: 10/06/2017] [Indexed: 12/16/2022] Open
Abstract
Benzbromarone (BBR) is effective in the treatment of gout; however, clinical findings have shown it can also cause fatal hepatic failure. Our early studies demonstrated that CYP3A catalyzed the biotransformation of BBR to epoxide intermediate(s) that reacted with sulfur nucleophiles of protein to form protein covalent binding both in vitro and in vivo. The present study attempted to define the correlation between metabolic epoxidation and hepatotoxicity of BBR by manipulating the structure of BBR. We rationally designed and synthesized three halogenated BBR derivatives, fluorinated BBR (6-F-BBR), chlorinated BBR (6-Cl-BBR), and brominated BBR (6-Br-BBR), to decrease the potential for cytochrome P450-mediated metabolic activation. Both in vitro and in vivo uricosuric activity assays showed that 6-F-BBR achieved favorable uricosuric effect, while 6-Cl-BBR and 6-Br-BBR showed weak uricosuric efficacy. Additionally, 6-F-BBR elicited much lower hepatotoxicity in mice. Fluorination of BBR offered advantage to metabolic stability in liver microsomes, almost completely blocked the formation of epoxide metabolite(s) and protein covalent binding, and attenuated hepatic and plasma glutathione depletion. Moreover, the structural manipulation did not alter the efficacy of BBR. This work provided solid evidence that the formation of the epoxide(s) is a key step in the development of BBR-induced hepatotoxicity.
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Affiliation(s)
- Hui Wang
- Wuya College of Innovation (H.W., Y.P., H.Z., Y.Z., X.W., J.Z.) and Key Laboratory of Structure-Based Drug Design and Discovery (Ministry of Education) (W.W., S.W.), School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang, Liaoning, P.R. China; School of Pharmacy, China Medical University, Shenyang, Liaoning, P.R. China (T.Z.); Guangdong Provincial Key Laboratory of Drug Screening and School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, Guangdong, P.R. China (Q.L., J.P.); and State Key Laboratory of Functions and Applications of Medicinal Plants and Key Laboratory of Pharmaceutics of Guizhou Province, Guizhou Medical University, Guiyang, Guizhou, P.R. China (J.Z.)
| | - Ying Peng
- Wuya College of Innovation (H.W., Y.P., H.Z., Y.Z., X.W., J.Z.) and Key Laboratory of Structure-Based Drug Design and Discovery (Ministry of Education) (W.W., S.W.), School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang, Liaoning, P.R. China; School of Pharmacy, China Medical University, Shenyang, Liaoning, P.R. China (T.Z.); Guangdong Provincial Key Laboratory of Drug Screening and School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, Guangdong, P.R. China (Q.L., J.P.); and State Key Laboratory of Functions and Applications of Medicinal Plants and Key Laboratory of Pharmaceutics of Guizhou Province, Guizhou Medical University, Guiyang, Guizhou, P.R. China (J.Z.)
| | - Tingjian Zhang
- Wuya College of Innovation (H.W., Y.P., H.Z., Y.Z., X.W., J.Z.) and Key Laboratory of Structure-Based Drug Design and Discovery (Ministry of Education) (W.W., S.W.), School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang, Liaoning, P.R. China; School of Pharmacy, China Medical University, Shenyang, Liaoning, P.R. China (T.Z.); Guangdong Provincial Key Laboratory of Drug Screening and School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, Guangdong, P.R. China (Q.L., J.P.); and State Key Laboratory of Functions and Applications of Medicinal Plants and Key Laboratory of Pharmaceutics of Guizhou Province, Guizhou Medical University, Guiyang, Guizhou, P.R. China (J.Z.)
| | - Qunsheng Lan
- Wuya College of Innovation (H.W., Y.P., H.Z., Y.Z., X.W., J.Z.) and Key Laboratory of Structure-Based Drug Design and Discovery (Ministry of Education) (W.W., S.W.), School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang, Liaoning, P.R. China; School of Pharmacy, China Medical University, Shenyang, Liaoning, P.R. China (T.Z.); Guangdong Provincial Key Laboratory of Drug Screening and School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, Guangdong, P.R. China (Q.L., J.P.); and State Key Laboratory of Functions and Applications of Medicinal Plants and Key Laboratory of Pharmaceutics of Guizhou Province, Guizhou Medical University, Guiyang, Guizhou, P.R. China (J.Z.)
| | - Huimin Zhao
- Wuya College of Innovation (H.W., Y.P., H.Z., Y.Z., X.W., J.Z.) and Key Laboratory of Structure-Based Drug Design and Discovery (Ministry of Education) (W.W., S.W.), School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang, Liaoning, P.R. China; School of Pharmacy, China Medical University, Shenyang, Liaoning, P.R. China (T.Z.); Guangdong Provincial Key Laboratory of Drug Screening and School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, Guangdong, P.R. China (Q.L., J.P.); and State Key Laboratory of Functions and Applications of Medicinal Plants and Key Laboratory of Pharmaceutics of Guizhou Province, Guizhou Medical University, Guiyang, Guizhou, P.R. China (J.Z.)
| | - Wenbao Wang
- Wuya College of Innovation (H.W., Y.P., H.Z., Y.Z., X.W., J.Z.) and Key Laboratory of Structure-Based Drug Design and Discovery (Ministry of Education) (W.W., S.W.), School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang, Liaoning, P.R. China; School of Pharmacy, China Medical University, Shenyang, Liaoning, P.R. China (T.Z.); Guangdong Provincial Key Laboratory of Drug Screening and School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, Guangdong, P.R. China (Q.L., J.P.); and State Key Laboratory of Functions and Applications of Medicinal Plants and Key Laboratory of Pharmaceutics of Guizhou Province, Guizhou Medical University, Guiyang, Guizhou, P.R. China (J.Z.)
| | - Yufei Zhao
- Wuya College of Innovation (H.W., Y.P., H.Z., Y.Z., X.W., J.Z.) and Key Laboratory of Structure-Based Drug Design and Discovery (Ministry of Education) (W.W., S.W.), School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang, Liaoning, P.R. China; School of Pharmacy, China Medical University, Shenyang, Liaoning, P.R. China (T.Z.); Guangdong Provincial Key Laboratory of Drug Screening and School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, Guangdong, P.R. China (Q.L., J.P.); and State Key Laboratory of Functions and Applications of Medicinal Plants and Key Laboratory of Pharmaceutics of Guizhou Province, Guizhou Medical University, Guiyang, Guizhou, P.R. China (J.Z.)
| | - Xu Wang
- Wuya College of Innovation (H.W., Y.P., H.Z., Y.Z., X.W., J.Z.) and Key Laboratory of Structure-Based Drug Design and Discovery (Ministry of Education) (W.W., S.W.), School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang, Liaoning, P.R. China; School of Pharmacy, China Medical University, Shenyang, Liaoning, P.R. China (T.Z.); Guangdong Provincial Key Laboratory of Drug Screening and School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, Guangdong, P.R. China (Q.L., J.P.); and State Key Laboratory of Functions and Applications of Medicinal Plants and Key Laboratory of Pharmaceutics of Guizhou Province, Guizhou Medical University, Guiyang, Guizhou, P.R. China (J.Z.)
| | - Jianxin Pang
- Wuya College of Innovation (H.W., Y.P., H.Z., Y.Z., X.W., J.Z.) and Key Laboratory of Structure-Based Drug Design and Discovery (Ministry of Education) (W.W., S.W.), School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang, Liaoning, P.R. China; School of Pharmacy, China Medical University, Shenyang, Liaoning, P.R. China (T.Z.); Guangdong Provincial Key Laboratory of Drug Screening and School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, Guangdong, P.R. China (Q.L., J.P.); and State Key Laboratory of Functions and Applications of Medicinal Plants and Key Laboratory of Pharmaceutics of Guizhou Province, Guizhou Medical University, Guiyang, Guizhou, P.R. China (J.Z.)
| | - Shaojie Wang
- Wuya College of Innovation (H.W., Y.P., H.Z., Y.Z., X.W., J.Z.) and Key Laboratory of Structure-Based Drug Design and Discovery (Ministry of Education) (W.W., S.W.), School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang, Liaoning, P.R. China; School of Pharmacy, China Medical University, Shenyang, Liaoning, P.R. China (T.Z.); Guangdong Provincial Key Laboratory of Drug Screening and School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, Guangdong, P.R. China (Q.L., J.P.); and State Key Laboratory of Functions and Applications of Medicinal Plants and Key Laboratory of Pharmaceutics of Guizhou Province, Guizhou Medical University, Guiyang, Guizhou, P.R. China (J.Z.)
| | - Jiang Zheng
- Wuya College of Innovation (H.W., Y.P., H.Z., Y.Z., X.W., J.Z.) and Key Laboratory of Structure-Based Drug Design and Discovery (Ministry of Education) (W.W., S.W.), School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang, Liaoning, P.R. China; School of Pharmacy, China Medical University, Shenyang, Liaoning, P.R. China (T.Z.); Guangdong Provincial Key Laboratory of Drug Screening and School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, Guangdong, P.R. China (Q.L., J.P.); and State Key Laboratory of Functions and Applications of Medicinal Plants and Key Laboratory of Pharmaceutics of Guizhou Province, Guizhou Medical University, Guiyang, Guizhou, P.R. China (J.Z.)
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Chemical Identity of Interaction of Protein with Reactive Metabolite of Diosbulbin B In Vitro and In Vivo. Toxins (Basel) 2017; 9:toxins9080249. [PMID: 28805726 PMCID: PMC5577583 DOI: 10.3390/toxins9080249] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Revised: 07/24/2017] [Accepted: 07/28/2017] [Indexed: 12/16/2022] Open
Abstract
Diosbulbin B (DIOB), a hepatotoxic furan-containing compound, is a primary ingredient in Dioscorea bulbifera L., a common herbal medicine. Metabolic activation is required for DIOB-induced liver injury. Protein covalent binding of an electrophilic reactive intermediate of DIOB is considered to be one of the key mechanisms of cytotoxicity. A bromine-based analytical technique was developed to characterize the chemical identity of interaction of protein with reactive intermediate of DIOB. Cysteine (Cys) and lysine (Lys) residues were found to react with the reactive intermediate to form three types of protein modification, including Cys adduction, Schiff's base, and Cys/Lys crosslink. The crosslink showed time- and dose-dependence in animals given DIOB. Ketoconazole pretreatment decreased the formation of the crosslink derived from DIOB, whereas pretreatment with dexamethasone or buthionine sulfoximine increased such protein modification. These data revealed that the levels of hepatic protein adductions were proportional to the severity of hepatotoxicity of DIOB.
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Zhang Z, Lin D, Li W, Gao H, Peng Y, Zheng J. Sensitive bromine-based screening of potential toxic furanoids in Dioscorea bulbifera L. J Chromatogr B Analyt Technol Biomed Life Sci 2017; 1057:1-14. [DOI: 10.1016/j.jchromb.2017.04.033] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2017] [Revised: 04/07/2017] [Accepted: 04/20/2017] [Indexed: 02/03/2023]
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Feng Y, Wang H, Wang Q, Huang W, Peng Y, Zheng J. Chemical Interaction of Protein Cysteine Residues with Reactive Metabolites of Methyleugenol. Chem Res Toxicol 2017; 30:564-573. [DOI: 10.1021/acs.chemrestox.6b00290] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yukun Feng
- Wuya
College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P. R. China
| | - Hui Wang
- Wuya
College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P. R. China
| | - Qian Wang
- Wuya
College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P. R. China
| | - Wenlin Huang
- Department
of Biochemistry, University of Washington, Seattle, Washington 98195, United States
| | - Ying Peng
- Wuya
College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P. R. China
| | - Jiang Zheng
- Wuya
College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P. R. China
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36
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Yang X, Li W, Sun Y, Guo X, Huang W, Peng Y, Zheng J. Comparative Study of Hepatotoxicity of Pyrrolizidine Alkaloids Retrorsine and Monocrotaline. Chem Res Toxicol 2017; 30:532-539. [DOI: 10.1021/acs.chemrestox.6b00260] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Xiaojing Yang
- Wuya
College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P. R. China
| | - Weiwei Li
- Wuya
College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P. R. China
| | - Ying Sun
- Wuya
College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P. R. China
| | - Xiucai Guo
- Wuya
College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P. R. China
| | - Wenlin Huang
- Department
of Biochemistry, University of Washington, Seattle, Washington 98195, United States
| | - Ying Peng
- Wuya
College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P. R. China
| | - Jiang Zheng
- Wuya
College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P. R. China
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37
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Lin D, Wang K, Guo X, Gao H, Peng Y, Zheng J. Lysine- and cysteine-based protein adductions derived from toxic metabolites of 8-epidiosbulbin E acetate. Toxicol Lett 2016; 264:20-28. [DOI: 10.1016/j.toxlet.2016.10.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Revised: 09/27/2016] [Accepted: 10/10/2016] [Indexed: 10/20/2022]
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38
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Identification of glutathione and related cysteine conjugates derived from reactive metabolites of methyleugenol in rats. Chem Biol Interact 2016; 253:143-52. [DOI: 10.1016/j.cbi.2016.05.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2016] [Revised: 04/30/2016] [Accepted: 05/02/2016] [Indexed: 11/17/2022]
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39
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Pharmacokinetic study of isocorynoxeine metabolites mediated by cytochrome P450 enzymes in rat and human liver microsomes. Fitoterapia 2016; 111:49-57. [PMID: 27094112 DOI: 10.1016/j.fitote.2016.04.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Revised: 04/10/2016] [Accepted: 04/12/2016] [Indexed: 01/28/2023]
Abstract
Isocorynoxeine (ICN) is one of the major bioactive tetracyclic oxindole alkaloids found in Uncaria rhynchophylla (Miq.) Jacks. that is widely used for the treatment of hypertension, vascular dementia, and stroke. The present study was undertaken to assess the plasma pharmacokinetic characteristics of major ICN metabolites, and the role of simulated gastric and intestinal fluid (SGF and SIF), human and rat liver microsomes (HLMs and RLMs), and seven recombinant human CYP enzymes in the major metabolic pathway of ICN. A rapid, sensitive and accurate UHPLC/Q-TOF MS method was validated for the simultaneous determination of ICN and its seven metabolites in rat plasma after oral administration of ICN at 40mg/kg. It was found that 18.19-dehydrocorynoxinic acid (DCA) and 5-oxoisocorynoxeinic acid (5-O-ICA) were both key and predominant metabolites, rather than ICN itself, due to the rapid and extensive metabolism of ICN in vivo. The further study indicated that ICN was mainly metabolized in human or rat liver, and CYPs 2C19, 3A4 and 2D6 were the major enzymes responsible for the biotransformation of ICN to DCA and 5-O-ICA in human. These findings are of significance in understanding of the pharmacokinetic nature of tetracyclic oxindole alkaloids, and provide helpful information for the clinical co-administration of the herbal preparations containing U. rhynchophylla with antihypertensive drugs that are mainly metabolized by CYP3A4 and CYP2C19.
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Detection of protein adduction derived from dauricine by alkaline permethylation. Anal Bioanal Chem 2016; 408:4111-9. [DOI: 10.1007/s00216-016-9505-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Revised: 03/14/2016] [Accepted: 03/18/2016] [Indexed: 10/22/2022]
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41
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Guo X, Lin D, Li W, Wang K, Peng Y, Zheng J. Electrophilicities and Protein Covalent Binding of Demethylation Metabolites of Colchicine. Chem Res Toxicol 2016; 29:296-302. [PMID: 26845511 DOI: 10.1021/acs.chemrestox.5b00461] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Colchicine, an alkaloid existing in plants of Liliaceous colchicum, has been widely used in the treatment of gout and familial Mediterranean fever. The administration of colchicine was found to cause liver injury in humans. The mechanisms of colchicine-induced liver toxicity remain unknown. The objectives of this study were to determine the electrophilicities of demethylation metabolites of colchicine and investigate the protein adductions derived from the reactive metabolites of colchicine. Four demethylated colchicine (1-, 2-, 3-, and 10-DMCs), namely, M1-M4, were detected in colchicine-fortified microsomal incubations. Four N-acetyl cysteine (NAC) conjugates (M5-M8) derived from colchicine were detected in the microsomes in the presence of NAC. M5 and M6 were derived from 10-DMC. M7 resulted from the reaction of 2-DMC or 3-DMC with NAC, and M8 originated from 10-DMC. Microsomal protein covalent binding was observed after exposure to colchicine. Two cysteine adducts (CA-1 and CA-2) derived from 10-DMC were found in proteolytically digested microsomal protein samples after incubation with colchicine. The findings allow us to define the chemical property of demethylation metabolites of colchicine and the interaction between protein and the reactive metabolites of colchicine generated in situ.
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Affiliation(s)
| | | | | | | | | | - Jiang Zheng
- Center for Developmental Therapeutics, Seattle Children's Research Institute, Division of Gastroenterology and Hepatology, Department of Pediatrics, University of Washington School of Medicine , Seattle, Washington 98101, United States
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Wang K, Wang H, Peng Y, Zheng J. Identification of Epoxide-Derived Metabolite(s) of Benzbromarone. Drug Metab Dispos 2016; 44:607-15. [DOI: 10.1124/dmd.115.066803] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2015] [Accepted: 01/13/2016] [Indexed: 01/31/2023] Open
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Lyu C, Zhang Y, Zhou W, Zhang S, Kou F, Wei H, Zhang N, Zuo Z. Gender-Dependent Pharmacokinetics of Veratramine in Rats: In Vivo and In Vitro Evidence. AAPS JOURNAL 2016; 18:432-44. [PMID: 26791530 DOI: 10.1208/s12248-016-9870-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2015] [Accepted: 01/07/2016] [Indexed: 12/25/2022]
Abstract
Veratramine, a major alkaloid from Veratrum nigrum L., has distinct anti-tumor and anti-hypertension effects. Our previous study indicated that veratramine had severe toxicity toward male rats. In order to elucidate the underling mechanism, in vivo pharmacokinetic experiments and in vitro mechanistic studies have been conducted. Veratramine was administrated to male and female rats intravenously via the jugular vein at a dose of 50 μg/kg or orally via gavage at 20 mg/kg. As a result, significant pharmacokinetic differences were observed between male and female rats after oral administration with much lower concentrations of veratramine and 7-hydroxyl-veratramine and higher concentrations of veratramine-3-O-sulfate found in the plasma and urine of female rats. The absolute bioavailability of veratramine was 0.9% in female rats and 22.5% in male rats. Further experiments of veratramine on Caco-2 cell monolayer model and in vitro incubation with GI content or rat intestinal subcellular fractions demonstrated that its efficient passive diffusion mediated absorption with minimal intestinal metabolism, suggesting no gender-related difference during its absorption process. When veratramine was incubated with male or female rat liver microsomes/cytosols, significant male-predominant formation of 7-hydroxyl-veratramine and female-predominant formation of veratramine-3-O-sulfate were observed. In conclusion, the significant gender-dependent hepatic metabolism of veratramine could be the major contributor to its gender-dependent pharmacokinetics.
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Affiliation(s)
- Chunming Lyu
- Technology Laboratory Center, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China.,School of Pharmacy, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, People's Republic of China
| | - Yufeng Zhang
- School of Pharmacy, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, People's Republic of China
| | - Wenbin Zhou
- Center for Chinese Medical Therapy and Systems Biology, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China
| | - Shen Zhang
- Department of Rehabilitation, Changzheng Hospital Affiliated to Second Military Medicine University, Shanghai, 200003, People's Republic of China
| | - Fang Kou
- Center for Chinese Medical Therapy and Systems Biology, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China
| | - Hai Wei
- Center for Chinese Medical Therapy and Systems Biology, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China.
| | - Ning Zhang
- Technology Laboratory Center, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China.
| | - Zhong Zuo
- School of Pharmacy, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, People's Republic of China.
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Ji L, Lu D, Cao J, Zheng L, Peng Y, Zheng J. Psoralen, a mechanism-based inactivator of CYP2B6. Chem Biol Interact 2015; 240:346-52. [DOI: 10.1016/j.cbi.2015.08.020] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2015] [Revised: 07/15/2015] [Accepted: 08/28/2015] [Indexed: 12/26/2022]
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45
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Wang K, Li W, Chen J, Peng Y, Zheng J. Detection of cysteine- and lysine-based protein adductions by reactive metabolites of 2,5-dimethylfuran. Anal Chim Acta 2015; 896:93-101. [DOI: 10.1016/j.aca.2015.09.017] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2015] [Revised: 09/11/2015] [Accepted: 09/14/2015] [Indexed: 01/08/2023]
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Lu D, Ji L, Zheng L, Cao J, Peng Y, Zheng J. Mechanism-based inactivation of cytochrome P450 2B6 by isopsoralen. Xenobiotica 2015; 46:335-41. [PMID: 26338349 DOI: 10.3109/00498254.2015.1077403] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
1. Isopsoralen (IPRN) is a major component in many traditional medicinal herbs widely used in Asian countries. The objective of the present study was to investigate the inhibitory effect of IPRN on cytochrome P450 2B6 (CYP2B6) and the mechanism involved in the enzyme inactivation. 2. Pre-incubation of CYP2B6 with IPRN resulted in a time- and concentration-dependent enzyme activity loss. The values of K(I) and k(inact) were found to be 7.89 μM and 0.067 min(-1), respectively. Ticlopidine exhibited protective effect on the IPRN-induced enzyme inactivation. The estimated partition ratio of the inactivation was 122. The GSH trapping experiments indicate that an epoxide and/or γ-ketoenal intermediate were/was generated in IPRN-fortified microsomal incubations. The synthetic work verified the formation of the reactive intermediate(s). Additionally, CYPs2E1, 2C19, 2B6 and 1A2 were found to be the major enzymes participating in the bioactivation of IPRN. 3. IPRN was characterized as a mechanism-based inactivator of CYP2B6. An IPRN-derived furanoepoxide and/or γ-ketoenal intermediate(s) were/was generated and may be responsible for the inactivation of CYP2B6.
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Affiliation(s)
| | | | | | | | | | - Jiang Zheng
- b Key Laboratory of Structure-Based Drug Design & Discovery of Ministry of Education , Shenyang , Liaoning , P. R. China and.,c Division of Gastroenterology and Hepatology, Department of Pediatrics , Center for Developmental Therapeutics, Seattle Children's Research Institute, University of Washington School of Medicine , Seattle , WA , USA
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Lin D, Guo X, Gao H, Cheng L, Cheng M, Song S, Peng Y, Zheng J. In Vitro and in Vivo Studies of the Metabolic Activation of 8-Epidiosbulbin E Acetate. Chem Res Toxicol 2015; 28:1737-46. [DOI: 10.1021/acs.chemrestox.5b00174] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | | | | | | | | | | | | | - Jiang Zheng
- Center
for Developmental Therapeutics, Seattle Children’s Research
Institute, Division of Gastroenterology and Hepatology, Department
of Pediatrics, University of Washington School of Medicine, Seattle, Washington 98101, United States
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Metabolites characterization of timosaponin AIII in vivo and in vitro by using liquid chromatography-mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2015; 997:236-43. [DOI: 10.1016/j.jchromb.2015.06.015] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Revised: 06/12/2015] [Accepted: 06/15/2015] [Indexed: 11/20/2022]
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49
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Li C, Lin D, Gao H, Hua H, Peng Y, Zheng J. N-Acetyl Lysine/Glutathione-Derived Pyrroles as Potential Ex Vivo Biomarkers of Bioactivated Furan-Containing Compounds. Chem Res Toxicol 2014; 28:384-93. [DOI: 10.1021/tx500334m] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | | | | | | | | | - Jiang Zheng
- Center for Developmental Therapeutics,
Seattle Children’s Research Institute, Division of Gastroenterology
and Hepatology, Department of Pediatrics, University of Washington School of Medicine, Seattle, Washington 98101, United States
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50
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Cao J, Zheng L, Ji L, Lu D, Peng Y, Zheng J. Mechanism-based inactivation of cytochrome P450 2B6 by isoimperatorin. Chem Biol Interact 2014; 226:23-9. [PMID: 25500267 DOI: 10.1016/j.cbi.2014.12.009] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2014] [Revised: 11/01/2014] [Accepted: 12/02/2014] [Indexed: 10/24/2022]
Abstract
Isoimperatorin (IIMP), a 6,7-furanocoumarin derivative, occurs in many common medicinal herbs. Human exposure to IIMP mainly results from intake of fruits, foods and medicinal herbs. We examined the irreversible inhibitory effect of IIMP on cytochrome P450 2B6. IIMP was found to cause time-dependent inhibition of CYP2B6. In addition, the loss of CYP2B6 activity occurred in a NAPDH- and concentration-dependent manner. About 60% of activity of CYP2B6 was suppressed after its incubation with IIMP at 25 μM for 9 min. Enzyme kinetic studies were performed, kinact for IIMP was found to be 0.071 min(-1), and KI was 17.1 μM, respectively. Glutathione and catalase/superoxide dismutase showed little protective effects on CYP2B6 against the inactivation by IIMP. S-Mephenytoin, a substrate of CYP2B6, mildly prevented the enzyme from the inactivation induced by IIMP. The estimated partition ratio of the inactivation was approximately 211. Additionally, a γ-ketoenal intermediate was identified in microsomal incubations with IIMP. CYPs 2B6, 2D6, and 1A2 were the major enzymes responsible for the metabolic activation of IIMP. In conclusion, IIMP is a mechanism-based inactivator of CYP2B6. The formation of γ-ketoenal intermediate may be responsible for the enzyme inactivation.
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Affiliation(s)
- Jiaojiao Cao
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China
| | - Liwei Zheng
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China
| | - Lin Ji
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China
| | - Dan Lu
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China
| | - Ying Peng
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China.
| | - Jiang Zheng
- Key Laboratory of Structure-Based Drug Design & Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China; Center for Developmental Therapeutics, Seattle Children's Research Institute, Division of Gastroenterology and Hepatology, Department of Pediatrics, University of Washington School of Medicine, Seattle, WA 98101, United States.
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