1
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Wang J, Yang H, Wang C, Kan C. Cyp2e1 knockdown attenuates high glucose-induced apoptosis and oxidative stress of cardiomyocytes by activating PI3K/Akt signaling. Acta Diabetol 2023; 60:1219-1229. [PMID: 37195324 DOI: 10.1007/s00592-023-02110-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Accepted: 04/26/2023] [Indexed: 05/18/2023]
Abstract
AIMS Cyp2e1 is a crucial CYP450 enzyme participating in diabetes and cardiovascular disorder. However, the role of Cyp2e1 in diabetic cardiomyopathy (DCM) has never been reported. Thus, we intended to identify the effects of Cyp2e1 on cardiomyocytes under high glucose (HG) conditions. METHODS Identification of differentially expressed genes in DCM and control rats was performed using bioinformatics analysis based on GEO database. The Cyp2e1-knockdown H9c2 and HL-1 cells were established through transfection with si-Cyp2e1. Western blot analysis was performed to determine the expression levels of Cyp2e1, apoptosis-related proteins and PI3K/Akt signaling-associated proteins. TUNEL assay was performed to assess apoptotic rate. Reactive oxygen species (ROS) generation was examined by DCFH2-DA staining assay. RESULTS From the bioinformatics analysis, Cyp2e1 was confirmed as an upregulated gene in DCM tissues. In vitro assays proved that Cyp2e1 expression was markedly increased in HG-induced H9c2 and HL-1 cells. Cyp2e1 knockdown attenuated HG-induced apoptosis in both H9c2 and HL-1 cells, as proved by deceased apoptotic rate, relative cleaved caspase-3/caspase-3 level, and caspase-3 activity. Cyp2e1 knockdown reduced ROS generation and elevated the expression level of nuclear Nrf2 in HG-induced H9c2 and HL-1 cells. Increased relative levels of p-PI3K/PI3K and p-Akt/Akt were found in Cyp2e1-knockdown H9c2 and HL-1 cells. Inhibition of PI3K/Akt using LY294002 reversed the inhibitory effects of Cyp2e1 knockdown on cell apoptosis and ROS generation on cardiomyocytes. CONCLUSIONS Cyp2e1 knockdown attenuated HG-induced apoptosis and oxidative stress by activating PI3K/Akt signaling in cardiomyocytes. These findings suggested that Cyp2e1 might be potentially used as an effective therapeutic strategy for DCM.
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Affiliation(s)
- Jianying Wang
- Department of Endocrinology, Nanshi Hospital Affiliated to Henan University, Nanyang, 473065, Henan Province, China
| | - Han Yang
- Department of Endocrinology, Nanshi Hospital Affiliated to Henan University, Nanyang, 473065, Henan Province, China
| | - Chao Wang
- Department of Geriatrics, Nanshi Hospital Affiliated to Henan University, Nanyang, 473065, Henan Province, China
| | - Cuie Kan
- Department of Intensive Care Unit, Huai'an Second Peopl's Hospital and The Affiliated Huai'an Hospital of Xuzhou Medical University, 62 South Huaihai Road, Huai'an, 223300, Jiangsu, China.
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2
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Zhang L, Tang J, Wang Y, Wang X, Wang F. Association of CYP7A1 and CYP2E1 Polymorphisms with Type 2 Diabetes in the Chinese Han Populations. Pharmgenomics Pers Med 2022; 15:843-855. [PMID: 36168322 PMCID: PMC9509678 DOI: 10.2147/pgpm.s367806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Accepted: 08/30/2022] [Indexed: 11/23/2022] Open
Abstract
Background Type 2 diabetes mellitus (T2DM) is caused by diverse environmental and genetic risk factors. Previous studies have reported that cytochrome P450 (CYP) is a promising gene for T2DM. Therefore, we aimed to determine the effects of CYP7A1 and CYP2E1 polymorphisms on T2DM susceptibility among the Chinese Han population. Methods A case-control study was conducted to assess the potential relationship of four polymorphisms (rs8192879, rs12542233, rs2070672 and rs2515641) with T2DM susceptibility in the Chinese population, involving 512 T2DM patients and 515 age- and gender-matched healthy individuals. We used the Agena MassARRAY platform to detect CYP7A1 and CYP2E1 polymorphisms. The relationship between genetic polymorphisms and T2DM risk was evaluated using odds ratios (ORs) and 95% confidence intervals (CIs) in various genetic models. Results After adjusting for age and gender, rs12542233 in the CYP7A1 gene was significantly associated with decreased T2DM risk (recessive: OR = 0.67, 95% CI = 0.49–0.91, p = 0.012; after FDR correction, p = 0.048). The CYP7A1 rs12542233 was associated with a reduced risk of T2DM in people over 59 years of age (p = 0.010). In the population with BMI ≤ 24 kg/m2, CYP7A1 rs12542233 was associated with an increased risk of T2DM (p < 0.05). In the population with BMI > 24 kg/m2, CYP2E1 rs2515641 can significantly reduce the risk of T2DM (p < 0.05). And rs8192879, rs2070672 and rs2515641 could significantly increase the risk of diabetes retinopathy in T2DM patients (p < 0.05). Furthermore, the Trs8192879Crs12542233 haplotype was significantly associated with T2DM (p = 0.019). Conclusion CYP7A1 and CYP2E1 polymorphisms may contribute to T2DM susceptibility in the Chinese Han population, especially in stratified analysis.
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Affiliation(s)
- Lihong Zhang
- Department of Endocrinology, Xi’an Central Hospital Affiliated to Xi’an Jiaotong University, Xi’an, 710003, People’s Republic of China
| | - Jingjing Tang
- Department of Endocrinology, Xi’an Central Hospital Affiliated to Xi’an Jiaotong University, Xi’an, 710003, People’s Republic of China
| | - Yindi Wang
- Department of Endocrinology, Xi’an Central Hospital Affiliated to Xi’an Jiaotong University, Xi’an, 710003, People’s Republic of China
| | - Xiang Wang
- Department of Endocrinology, Xi’an Central Hospital Affiliated to Xi’an Jiaotong University, Xi’an, 710003, People’s Republic of China
| | - Fang Wang
- Department of Endocrinology, Xi’an Central Hospital Affiliated to Xi’an Jiaotong University, Xi’an, 710003, People’s Republic of China
- Correspondence: Fang Wang, Department of Endocrinology, Xi’an central hospital affiliated to Xi’an Jiaotong University, No. 185, Houzaimen, Xincheng District, Xi’an, Shaanxi Province, People’s Republic of China, Tel/Fax +86 18681809668, Email
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3
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Kammala AK, Lintao RC, Vora N, Mosebarger A, Khanipov K, Golovko G, Yaklic JL, Peltier MR, Conrads TP, Menon R. Expression of CYP450 enzymes in human fetal membranes and its implications in xenobiotic metabolism during pregnancy. Life Sci 2022; 307:120867. [DOI: 10.1016/j.lfs.2022.120867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 07/26/2022] [Accepted: 08/03/2022] [Indexed: 10/15/2022]
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4
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Karimani A. Evaluating Cytochrome P-2E1 Induction in Diabetic Rats and Rabbits. JOURNAL OF MEDICAL SCIENCES 2022. [DOI: 10.3923/jms.2022.158.164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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5
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Konstandi M, Johnson EO, Lang MA. Stress as a Potential Regulatory Factor in the Outcome of Pharmacotherapy. Front Neurosci 2022; 16:737716. [PMID: 35401076 PMCID: PMC8984175 DOI: 10.3389/fnins.2022.737716] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Accepted: 02/14/2022] [Indexed: 12/18/2022] Open
Affiliation(s)
- Maria Konstandi
- Department of Pharmacology, Faculty of Medicine, University of Ioannina, Ioannina, Greece
| | - Elizabeth O Johnson
- Department of Anatomy, School of Medicine, European University Cyprus, Nicosia, Cyprus
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6
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Bozcaarmutlu A, Sapmaz C, Bozdoğan Ö, Kükner A, Kılınç L, Kaya ST, Özarslan OT, Ekşioğlu D. The effect of co-administration of berberine, resveratrol, and glibenclamide on xenobiotic metabolizing enzyme activities in diabetic rat liver. Drug Chem Toxicol 2020; 45:990-998. [PMID: 32762264 DOI: 10.1080/01480545.2020.1802475] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
It is possible to use plant-derived antioxidant molecules in the form of dietary supplements. However, dietary supplement-drug interaction pattern has not been well defined for most of these products. The aim of this study was to determine the effects of berberine, resveratrol, and glibenclamide on xenobiotic metabolizing enzyme activities in diabetic rats. Streptozotocin was administered to create experimental diabetes. Resveratrol (5 mg/kg) (R), glibenclamide (5 mg/kg) (G), and berberine (10 mg/kg) (B) were administered individually or in combinations in DMSO by intraperitoneal administration route to the diabetic rats. DMSO was also given to non-diabetic control (C) and diabetic control (D) groups. Livers of rats were taken under anesthesia at the end of the treatment period (12 days). Ethoxyresorufin O-deethylase (EROD), pentoxyresorufin O-depentylase (PROD), aniline 4-hydroxylase (A4H), erythromycin N-demethylase (ERND), glutathione S-transferase (GST), catalase (CAT), and glutathione reductase (GR) activities were measured in microsomes and cytosols. In addition, histomorphological studies were also performed in the liver tissues. EROD activity of D+R was significantly higher than C and D+R+B. PROD activity of D+R was significantly higher than C, D, D+R+G, D+R+B, and D+R+B+ G. PROD activity of D+B was significantly higher than C and D+R+B. ERND activity of D+R was significantly higher than D+R+G and D+R+B. GST activity of D+R was significantly higher than D+R+G. CAT activity of D+B was significantly lower than C. It is clear that co-administration of resveratrol, berberine, and glibenclamide modifies some of the important xenobiotic metabolizing enzyme activities. Resveratrol and berberine have the potential to cause dietary supplement-drug interaction.
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Affiliation(s)
- Azra Bozcaarmutlu
- Department of Chemistry, Faculty of Arts and Science, Bolu Abant Izzet Baysal University, Bolu, Turkey
| | - Canan Sapmaz
- Department of Chemistry, Faculty of Arts and Science, Bolu Abant Izzet Baysal University, Bolu, Turkey
| | - Ömer Bozdoğan
- Department of Biology, Faculty of Arts and Science, Bolu Abant Izzet Baysal University, Bolu, Turkey
| | - Aysel Kükner
- Department of Histology and Embryology, Faculty of Medicine, Near East University, Nicosia, North Cyprus
| | - Leyla Kılınç
- Department of Histology and Embryology, Faculty of Medicine, Akdeniz University, Antalya, Turkey
| | - Salih Tunç Kaya
- Department of Biology, Faculty of Arts and Science, Düzce University, Düzce, Turkey
| | - Oğulcan Talat Özarslan
- Department of Biology, Faculty of Arts and Science, Bolu Abant Izzet Baysal University, Bolu, Turkey
| | - Didem Ekşioğlu
- Department of Biology, Faculty of Arts and Science, Bolu Abant Izzet Baysal University, Bolu, Turkey
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7
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Karimani A, Hosseinzadeh H, Mehri S, Jafarian AH, Kamali SA, Hooshang Mohammadpour A, Karimi G. Histopathological and biochemical alterations in non-diabetic and diabetic rats following acrylamide treatment. TOXIN REV 2019. [DOI: 10.1080/15569543.2019.1566263] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Asieh Karimani
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hossein Hosseinzadeh
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
- Pharmaceutical Research Center, Institute of Pharmaceutical Technology, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Soghra Mehri
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amir Hossein Jafarian
- Cancer Molecular Pathology Research Center, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Amir Hooshang Mohammadpour
- Pharmaceutical Research Center, Institute of Pharmaceutical Technology, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of Clinical Pharmacy, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Gholamreza Karimi
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
- Pharmaceutical Research Center, Institute of Pharmaceutical Technology, Mashhad University of Medical Sciences, Mashhad, Iran
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8
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Chen F, Li DY, Zhang B, Sun JY, Sun F, Ji X, Qiu JC, Parker RB, Laizure SC, Xu J. Alterations of drug-metabolizing enzymes and transporters under diabetic conditions: what is the potential clinical significance? Drug Metab Rev 2018; 50:369-397. [PMID: 30221555 DOI: 10.1080/03602532.2018.1497645] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Feng Chen
- Department of Pharmacy, Children's Hospital of Nanjing Medical University, Nanjing, China
- Department of Clinical Pharmacy and Translational Science, College of Pharmacy, University of Tennessee Health Science Center, Memphis, TN, USA
| | - De-Yi Li
- School of Life Sciences and Biopharmaceutics, Shenyang Pharmaceutical University, Shenyang, China
| | - Bo Zhang
- Department of Physiology, College of Medicine, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Jie-Yu Sun
- Department of Pharmacy, Children's Hospital of Nanjing Medical University, Nanjing, China
| | - Fang Sun
- Department of Pharmacy, Children's Hospital of Nanjing Medical University, Nanjing, China
| | - Xing Ji
- Department of Pharmacy, Children's Hospital of Nanjing Medical University, Nanjing, China
| | - Jin-Chun Qiu
- Department of Pharmacy, Children's Hospital of Nanjing Medical University, Nanjing, China
| | - Robert B. Parker
- Department of Clinical Pharmacy and Translational Science, College of Pharmacy, University of Tennessee Health Science Center, Memphis, TN, USA
| | - S. Casey Laizure
- Department of Clinical Pharmacy and Translational Science, College of Pharmacy, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Jing Xu
- Department of Pharmacy, Children's Hospital of Nanjing Medical University, Nanjing, China
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9
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Atrazine-induced environmental nephrosis was mitigated by lycopene via modulating nuclear xenobiotic receptors-mediated response. J Nutr Biochem 2018; 51:80-90. [DOI: 10.1016/j.jnutbio.2017.09.006] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2017] [Revised: 06/01/2017] [Accepted: 09/05/2017] [Indexed: 12/20/2022]
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10
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Sen A, Terzioglu G, Atmaca P, Celik G, Ozgun O, Arslan S. Modulatory actions ofo-coumaric acid on carcinogen-activating cytochrome P450 isozymes and the potential for drug interactions in human hepatocarcinoma cells. PHARMACEUTICAL BIOLOGY 2015; 53:1391-8. [PMID: 25880144 DOI: 10.3109/13880209.2015.1014919] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Alaattin Sen
- Department of Biology, Pamukkale University , Kinikli Campus, Denizli , Turkey
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11
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Susceptibility Based Upon Chemical Interaction with Disease Processes: Potential Implications for Risk Assessment. Curr Environ Health Rep 2014. [DOI: 10.1007/s40572-014-0030-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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12
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Konstandi M, Johnson EO, Lang MA. Consequences of psychophysiological stress on cytochrome P450-catalyzed drug metabolism. Neurosci Biobehav Rev 2014; 45:149-67. [DOI: 10.1016/j.neubiorev.2014.05.011] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2014] [Revised: 04/17/2014] [Accepted: 05/18/2014] [Indexed: 12/11/2022]
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13
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Konstandi M. Psychophysiological stress: a significant parameter in drug pharmacokinetics. Expert Opin Drug Metab Toxicol 2013; 9:1317-34. [DOI: 10.1517/17425255.2013.816283] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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14
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Gandhi A, Moorthy B, Ghose R. Drug disposition in pathophysiological conditions. Curr Drug Metab 2013; 13:1327-44. [PMID: 22746301 DOI: 10.2174/138920012803341302] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2011] [Revised: 04/04/2012] [Accepted: 04/19/2012] [Indexed: 12/19/2022]
Abstract
Expression and activity of several key drug metabolizing enzymes (DMEs) and transporters are altered in various pathophysiological conditions, leading to altered drug metabolism and disposition. This can have profound impact on the pharmacotherapy of widely used clinically relevant medications in terms of safety and efficacy by causing inter-individual variabilities in drug responses. This review article highlights altered drug disposition in inflammation and infectious diseases, and commonly encountered disorders such as cancer, obesity/diabetes, fatty liver diseases, cardiovascular diseases and rheumatoid arthritis. Many of the clinically relevant drugs have a narrow therapeutic index. Thus any changes in the disposition of these drugs may lead to reduced efficacy and increased toxicity. The implications of changes in DMEs and transporters on the pharmacokinetics/pharmacodynamics of clinically-relevant medications are also discussed. Inflammation-mediated release of pro-inflammatory cytokines and activation of toll-like receptors (TLRs) are known to play a major role in down-regulation of DMEs and transporters. Although the mechanism by which this occurs is unclear, several studies have shown that inflammation-associated cell-signaling pathway and its interaction with basal transcription factors and nuclear receptors in regulation of DMEs and transporters play a significant role in altered drug metabolism. Altered regulation of DMEs and transporters in a multitude of disease states will contribute towards future development of powerful in vitro and in vivo tools in predicting the drug response and opt for better drug design and development. The goal is to facilitate a better understanding of the mechanistic details underlying the regulation of DMEs and transporters in pathophysiological conditions.
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Affiliation(s)
- Adarsh Gandhi
- Department of Pharmacological and Pharmaceutical Sciences, University of Houston, Houston, TX 77030, USA
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15
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Dey A. Cytochrome P450 2E1: its clinical aspects and a brief perspective on the current research scenario. Subcell Biochem 2013; 67:1-104. [PMID: 23400917 DOI: 10.1007/978-94-007-5881-0_1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Research on Cytochrome P450 2E1 (CYP2E1), a key enzyme in alcohol metabolism has been very well documented in literature. Besides the involvement of CYP2E1 in alcohol metabolism as illustrated through the studies discussed in the chapter, recent studies have thrown light on several other aspects of CYP2E1 i.e. its extrahepatic expression, its involvement in several diseases and pathophysiological conditions; and CYP2E1 mediated carcinogenesis and modulation of drug efficacy. Studies involving these interesting facets of CYP2E1 have been discussed in the chapter focusing on the recent observations or ongoing studies illustrating the crucial role of CYP2E1 in disease development and drug metabolism.
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Affiliation(s)
- Aparajita Dey
- AU-KBC Research Centre, Anna University, MIT Campus, Chromepet, Chennai, Tamil Nadu, 600044, India,
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16
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Arslan S, Ozgun O. Cyclamen Trochopteranthum: Cytotoxic activity and possible adverse interactions including drugs and carcinogens. Chin J Integr Med 2012. [PMID: 23001494 DOI: 10.1007/s11655-012-1253-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2011] [Indexed: 12/08/2022]
Abstract
OBJECTIVE: To examine the effect of water extracts of cyclamen tubers on the expression of main cytochrome P450 (CYP450s) including CYP1A1, CYP1A2 CYP2E1, CYP2B6, CYP2C9 and CYP3A4 that participate in the metabolism of both drugs and carcinogens and cytotoxic activity in human cancer cell lines, namely HepG2 and Caco-2. METHODS: Cyclamen trochopteranthum tubers were extracted with dH(2)O and then lyophilized under vacuum. Infrared spectral study was made for extracts by Fourier transform infrared spectroscopy (FT-IR). Cytotoxic activity of cyclamen was determined by crystal violet staining in HepG2 and Caco-2 cells. CYP expression was determined by reverse transcription polymerase chain reaction (RT-PCR). RESULTS: Cyclamen water extract had moderate cytotoxic activity. It was found that lethal concentration (LC50) value of the cyclamen extract was 50 and 125 μg/mL in HepG2 and Caco-2 cell lines, respectively. Moreover, it caused induction and suppression of CYP450s mRNA levels in HepG2 and Caco-2 cells. CONCLUSION: Cyclamen may have a potential not only inhibition and/or induction of the metabolism of certain co-administered drugs but also development of toxicity, mutagenesis and malignant transformation due to induction or suppression of the CYP450s dependent drug metabolizing enzymes.
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Affiliation(s)
- Sevki Arslan
- Department of Biology, Pamukkale University, Denizli, 20070, Turkey,
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17
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Diverse action of acrylamide on cytochrome P450 and glutathione S-transferase isozyme activities, mRNA levels and protein levels in human hepatocarcinoma cells. Cell Biol Toxicol 2012; 28:175-86. [PMID: 22392284 DOI: 10.1007/s10565-012-9214-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2011] [Accepted: 02/17/2012] [Indexed: 12/08/2022]
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18
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Association between polymorphisms of EPHX1 and XRCC1 genes and the risk of childhood acute lymphoblastic leukemia. Arch Toxicol 2011; 86:431-9. [DOI: 10.1007/s00204-011-0760-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2011] [Accepted: 09/20/2011] [Indexed: 12/20/2022]
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19
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Dey A, Kumar SM. Cytochrome P450 2E1 and hyperglycemia-induced liver injury. Cell Biol Toxicol 2011; 27:285-310. [PMID: 21455816 DOI: 10.1007/s10565-011-9188-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2010] [Accepted: 03/03/2011] [Indexed: 12/25/2022]
Abstract
Cytochrome P450 2E1 (CYP2E1), a microsomal enzyme involved in xenobiotic metabolism and generation of oxidative stress, has been implicated in promoting liver injury. The review deals with the changes in various cellular pathways in liver linked with the changes in regulation of CYP2E1 under hyperglycemic conditions. Some of the hepatic abnormalities associated with hyperglycemia-mediated induction of CYP2E1 include increased oxidative stress, changes in mitochondrial structure and function, apoptosis, nitrosative stress, and increased ketone body accumulation. Thus, changes in regulation of CYP2E1 are associated with the injurious effects of hyperglycemia in liver.
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Affiliation(s)
- Aparajita Dey
- Life Science Division, AU-KBC Research Centre, MIT Campus of Anna University, Chromepet, Chennai, India.
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20
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Tumer TB, Yilmaz D, Tanrikut C, Sahin G, Ulusoy G, Arinç E. DNA repair XRCC1 Arg399Gln polymorphism alone, and in combination with CYP2E1 polymorphisms significantly contribute to the risk of development of childhood acute lymphoblastic leukemia. Leuk Res 2010; 34:1275-81. [DOI: 10.1016/j.leukres.2010.02.035] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2009] [Revised: 02/19/2010] [Accepted: 02/27/2010] [Indexed: 12/08/2022]
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21
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The role of polymorphic cytochrome P450 enzymes in drug design, development and drug interactions with a special emphasis on phenotyping. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.molcatb.2009.03.020] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/08/2022]
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22
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Nugraha B, Yoon AR, Kandagaddala LD, Cho HJ, Chung BC, Kwon OS. In Vivo Suppression of Bisphenol A on Estradiol 2- and 4-Hydroxylase Activities in Hepatic Microsomal Fractions of Male and Female Sprague-Dawley Rats. Biomol Ther (Seoul) 2009. [DOI: 10.4062/biomolther.2009.17.2.188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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23
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Ulusoy G, Adali O, Tumer TB, Sahin G, Gozdasoglu S, Arinç E. Significance of Genetic Polymorphisms at Multiple Loci of CYP2E1 in the Risk of Development of Childhood Acute Lymphoblastic Leukemia. Oncology 2007; 72:125-31. [DOI: 10.1159/000111131] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2007] [Accepted: 06/07/2007] [Indexed: 11/19/2022]
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Lee SH, Woo HM, Jung BH, Lee J, Kwon OS, Pyo HS, Choi MH, Chung BC. Metabolomic Approach To Evaluate the Toxicological Effects of Nonylphenol with Rat Urine. Anal Chem 2007; 79:6102-10. [PMID: 17636880 DOI: 10.1021/ac070237e] [Citation(s) in RCA: 64] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Metabolomics has focused on toxicological applications to (1) understand the mechanisms of toxicity, (2) identify novel biomarkers of toxicity, and (3) provide in vivo assessment in animal models through simple and fast methods to date. The toxicological effects of nonylphenol (NP) were evaluated after intraperitoneal injection of rats with 0, 50, and 250 mg kg(-1) day(-1) NP for four consecutive days. In the nontargeted approach, different extraction conditions were introduced to investigate the effects of NP on rats through gas chromatography/mass spectrometry (GC/MS). The GC/MS data obtained were further analyzed with partial least-squares discriminant analysis to compare toxicological effects between control and treated groups. The targeted approach was also used in combination with GC/MS to quantify endocrine hormones and to identify possible biomarkers in rat urine under optimal extraction conditions. In addition, we considered the metabolic trajectory to examine the metabolite profiles and patterns related to steroid metabolism in rats that were treated with NP, considering both treatment amount and time. The data suggest that tetrahydrocorticosterone and 5alpha-tetrahydrocorticosterone are possible urinary biomarkers of NP-induced toxicity. This metabolomic approach is a promising tool to assist with screening in toxicological studies.
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Affiliation(s)
- Sang Hee Lee
- Bioanalysis and Biotransformation Research Center, Korea Institute of Science and Technology, 39-1 Hawolgok-dong, Seongbuk-gu, Seoul 136-791, Korea
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Ulusoy G, Arinç E, Adali O. Genotype and allele frequencies of polymorphic CYP2E1 in the Turkish population. Arch Toxicol 2007; 81:711-8. [PMID: 17380320 DOI: 10.1007/s00204-007-0200-y] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2006] [Accepted: 03/06/2007] [Indexed: 01/28/2023]
Abstract
Cytochrome P4502E1 (CYP2E1) gene shows genetic polymorphisms that vary markedly in frequency among different ethnic and racial groups. We studied the genotype distributions and allele frequencies of three CYP2E1 polymorphisms: CYP2E1*5B (RsaI/PstI RFLP, C-1053T/G-1293C SNP, rs2031920 /rs3813867), CYP2E1*6 (DraI RFLP, T7632A SNP, rs6413432), and CYP2E1*7B (DdeI RFLP, G-71T SNP, rs6413420) by PCR/RFLP technique in a sample of 206 healthy subjects representing Turkish population. CYP2E1*5B polymorphism analysis yielded the genotype distribution as 96.12% for *1A/*1A (c1/c1), and 3.88% for *1A/*5B (c1/c2). The genotype frequencies for CYP2E1*6 polymorphism were found as 83.98% for *1A/*1A (T/T), 15.53% for *1A/*6 (T/A) and 0.49% for *6/*6 (A/A). For CYP2E1*7B (G-71T) polymorphism, the genotype frequencies were determined to be 86.89% for *1A/*1A (G/G), 12.62% for *1A/*7B (G/T) and 0.49% for *7B/*7B (T/T). Accordingly, the allele frequencies for *5B, *6 and *7B were 1.94, 8.25, and 6.80%, respectively. The genotype distributions of CYP2E1*5B and *6 in Turkish population were similar to those in other Caucasian populations, while differed significantly from East Asian populations. Recently, a novel and functionally important CYP2E1*7B polymorphism was identified in the promoter region. There have been few studies and limited data on CYP2E1*7B polymorphism frequency in the world and, so far, no information has been available for Turkish population. The genotype frequencies of CYP2E1*7B in Turkish population were found to be similar to those of other Caucasian populations. Population studies like this could be useful in assessing the susceptibility of different populations to chemical-induced diseases, including several types of cancer.
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Affiliation(s)
- Gulen Ulusoy
- Biochemistry Graduate Programme and Department of Biological Sciences, Middle East Technical University, 06531 Ankara, Turkey
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Arinç E, Arslan S, Bozcaarmutlu A, Adali O. Effects of diabetes on rabbit kidney and lung CYP2E1 and CYP2B4 expression and drug metabolism and potentiation of carcinogenic activity of N-nitrosodimethylamine in kidney and lung. Food Chem Toxicol 2007; 45:107-18. [PMID: 17034923 DOI: 10.1016/j.fct.2006.07.026] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2006] [Revised: 07/06/2006] [Accepted: 07/19/2006] [Indexed: 12/08/2022]
Abstract
There are limited number of studies regarding the influence of diabetes on the regulation of cytochrome P450s and associated drug metabolizing enzyme activities especially in extrahepatic tissues such as kidney. However, there is almost no such study in lung. Alloxan-induced diabetes did not change CYP2B4 expression as measured with immunoblot analysis and associated enzyme, benzphetamine N-demethylase, activity in rabbit kidney and lung. Induction of cytochrome P4502E1 by diabetes was identified by immunochemical detection on Western blots in the lung and kidney microsomes of rabbits. In parallel to CYP2E1 induction, aniline 4-hydroxylase and p-nitrophenol hydroxylase activities were markedly increased in diabetic rabbit lung and kidney. CYP2B4 and CYP2E1 dependent drug metabolism did not show any tissue variation in diabetic rabbit. These findings are in contrast to those of rats, mice and hamster. The results of the present work, in combination with those of the previous work [Arinç, E., Arslan, S., Adali, O., 2005. Differential effects of diabetes on CYP2E1 and CYP2B4 proteins and associated drug metabolizing enzyme activities in rabbit liver. Arch. Toxicol. 79, 427-433], indicate the existence of species-dependent response of CYP-dependent drug metabolizing enzymes to diabetes. A procarcinogen and food contaminant, N-nitrosodimethylamine (NDMA), is converted to its carcinogenic form after it is activated with NDMA N-demethylase. In the current study, a statistically significant increase of liver, kidney and lung NDMA N-demethylase activity associated with CYP2E1 was shown in diabetic rabbit. Thus, it is expected that, the risk of nitrosamine induced carcinogenesis will be greater in liver, kidney and lung of the diabetic subjects.
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Affiliation(s)
- Emel Arinç
- Biochemistry Graduate Programme and Department of Biological Sciences, Middle East Technical University, Inonu Bulvari, 06531 Ankara, Turkey.
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Lu J, Chan YK, Gamble GD, Poppitt SD, Othman AA, Cooper GJS. Triethylenetetramine and Metabolites: Levels in Relation to Copper and Zinc Excretion in Urine of Healthy Volunteers and Type 2 Diabetic Patients. Drug Metab Dispos 2006; 35:221-7. [PMID: 17108057 DOI: 10.1124/dmd.106.012922] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Triethylenetetramine (TETA), a selective Cu(II)-chelator used in the treatment of Wilson's disease, is now undergoing clinical trials for the treatment of heart failure in diabetes. Despite decades of clinical use, knowledge of its pharmacology in human subjects remains incomplete. Here, we first used liquid chromatography-mass spectrometry (LC-MS) to detect and identify major metabolites of TETA in human plasma and urine, and then used this method to measure concentrations of TETA and its metabolites in the urine of healthy and diabetic subjects who were administered increasing doses (300, 600, 1200, and 2400 mg) of TETA orally. Twenty-four-hour urine collections were performed before and after dosing participants. Two major metabolites of TETA were detected in human urine, N(1)-acetyltriethylenetetramine (MAT) and N(1),N(10)-diacetyltriethylenetetramine, the latter being novel. Both metabolites were verified with synthetic standards by LC-MS. The proportion of unchanged TETA excreted as a fraction of total urinary drug-derived molecules was significantly higher in healthy than in matched diabetic subjects, consistent with a higher rate of TETA metabolism in the latter. TETA-evoked increases in urinary Cu excretion in nondiabetic subjects were more closely correlated with parent drug concentrations than in diabetic subjects, whereas, by contrast, urinary Cu was more closely associated with the sum of TETA and MAT. These findings are consistent with the hypothesis that MAT could play a significant role in the molecular mechanism by which TETA extracts Cu(II) from the systemic compartment in diabetic subjects.
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Affiliation(s)
- Jun Lu
- School of Biological Sciences, Faculty of Science, University of Auckland, Auckland, New Zealand
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