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Leow JWH, Chan ECY. CYP2J2-mediated metabolism of arachidonic acid in heart: A review of its kinetics, inhibition and role in heart rhythm control. Pharmacol Ther 2024:108637. [PMID: 38521247 DOI: 10.1016/j.pharmthera.2024.108637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2023] [Revised: 02/06/2024] [Accepted: 03/11/2024] [Indexed: 03/25/2024]
Abstract
Cytochrome P450 2 J2 (CYP2J2) is primarily expressed extrahepatically and is the predominant epoxygenase in human cardiac tissues. This highlights its key role in the metabolism of endogenous substrates. Significant scientific interest lies in cardiac CYP2J2 metabolism of arachidonic acid (AA), an omega-6 polyunsaturated fatty acid, to regioisomeric bioactive epoxyeicosatrienoic acid (EET) metabolites that show cardioprotective effects including regulation of cardiac electrophysiology. From an in vitro perspective, the accurate characterization of the kinetics of CYP2J2 metabolism of AA including its inhibition and inactivation by drugs could be useful in facilitating in vitro-in vivo extrapolations to predict drug-AA interactions in drug discovery and development. In this review, background information on the structure, regulation and expression of CYP2J2 in human heart is presented alongside AA and EETs as its endogenous substrate and metabolites. The in vitro and in vivo implications of the kinetics of this endogenous metabolic pathway as well as its perturbation via inhibition and inactivation by drugs are elaborated. Additionally, the role of CYP2J2-mediated metabolism of AA to EETs in cardiac electrophysiology will be expounded.
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Affiliation(s)
- Jacqueline Wen Hui Leow
- Department of Pharmacy, Faculty of Science, National University of Singapore, 18 Science Drive 4, Singapore 117543, Singapore
| | - Eric Chun Yong Chan
- Department of Pharmacy, Faculty of Science, National University of Singapore, 18 Science Drive 4, Singapore 117543, Singapore.
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2
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Wiley AM, Yang J, Madhani R, Nath A, Totah RA. Investigating the association between CYP2J2 inhibitors and QT prolongation: a literature review. Drug Metab Rev 2024:1-19. [PMID: 38478383 DOI: 10.1080/03602532.2024.2329928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Accepted: 03/06/2024] [Indexed: 03/21/2024]
Abstract
Drug withdrawal post-marketing due to cardiotoxicity is a major concern for drug developers, regulatory agencies, and patients. One common mechanism of cardiotoxicity is through inhibition of cardiac ion channels, leading to prolongation of the QT interval and sometimes fatal arrythmias. Recently, oxylipin signaling compounds have been shown to bind to and alter ion channel function, and disruption in their cardiac levels may contribute to QT prolongation. Cytochrome P450 2J2 (CYP2J2) is the predominant CYP isoform expressed in cardiomyocytes, where it oxidizes arachidonic acid to cardioprotective epoxyeicosatrienoic acids (EETs). In addition to roles in vasodilation and angiogenesis, EETs bind to and activate various ion channels. CYP2J2 inhibition can lower EET levels and decrease their ability to preserve cardiac rhythm. In this review, we investigated the ability of known CYP inhibitors to cause QT prolongation using Certara's Drug Interaction Database. We discovered that among the multiple CYP isozymes, CYP2J2 inhibitors were more likely to also be QT-prolonging drugs (by approximately 2-fold). We explored potential binding interactions between these inhibitors and CYP2J2 using molecular docking and identified four amino acid residues (Phe61, Ala223, Asn231, and Leu402) predicted to interact with QT-prolonging drugs. The four residues are located near the opening of egress channel 2, highlighting the potential importance of this channel in CYP2J2 binding and inhibition. These findings suggest that if a drug inhibits CYP2J2 and interacts with one of these four residues, then it may have a higher risk of QT prolongation and more preclinical studies are warranted to assess cardiovascular safety.
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Affiliation(s)
- Alexandra M Wiley
- Department of Medicinal Chemistry, University of WA School of Pharmacy, Seattle, WA, USA
| | - Jade Yang
- Department of Medicinal Chemistry, University of WA School of Pharmacy, Seattle, WA, USA
| | - Rivcka Madhani
- Department of Medicinal Chemistry, University of WA School of Pharmacy, Seattle, WA, USA
| | - Abhinav Nath
- Department of Medicinal Chemistry, University of WA School of Pharmacy, Seattle, WA, USA
| | - Rheem A Totah
- Department of Medicinal Chemistry, University of WA School of Pharmacy, Seattle, WA, USA
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3
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Liu R, Zhong L, Wang C, Sun Y, Ru W, Dai W, Yang S, Zhong A, Xie X, Chen X, Li S. MiR-3646 accelerates inflammatory response of Ang II-induced hVSMCs via CYP2J2/EETs axis in hypertension model. Clin Exp Hypertens 2023; 45:2166948. [PMID: 36751048 DOI: 10.1080/10641963.2023.2166948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
BACKGROUND Inflammatory response of human vascular smooth muscle cells (hVSMCs) is a driving factor in hypertension progression. It has been reported that miR-3646 was significantly up-regulated in serum samples from patients with coronary artery disease and acute myocardial infarction mice. However, its role and underlying molecular mechanism related to inflammatory response of angiotensin II (Ang II)-induced hVSMCs remain unclear. OBJECTIVE We aimed to explore the potential molecular mechanisms related to inflammatory response of angiotensin II (Ang II)-induced hVSMCs. METHODS Ang II-induced hypertension model was established after hVSMCs treated with 1 μM Ang II at 24 h. The interaction between microRNA 3646 (miR-3646) and cytochrome P450 2J2 (CYP2J2) was assessed by dual-luciferase reporter gene assay. MTS assay, Lipid Peroxidation MDA Assay Kit, ELISA, Western blot, and qRT-PCR were performed to examine viability, malondialdehyde (MDA) level, inflammatory cytokine levels, and the level of genes and proteins. RESULTS Our findings illustrated that miR-3646 was up-regulated but CYP2J2 was down-regulated in Ang II-induced hVSMCs. Mechanically, miR-3646 negatively targeted to CYP2J2 in Ang II-induced hVSMCs. These findings indicated that miR-3646 regulated inflammatory response of Ang II-induced hVSMCs via targeting CYP2J2. Moreover, functional researches showed that CYP2J2 overexpression alleviated inflammatory response of Ang II-induced hVSMCs via epoxyeicosatrienoic acids/peroxisome proliferator-activated receptor-γ (EETs/PPARγ) axis, and miR-3646 aggravated inflammatory response of Ang II-induced hVSMCs via mediating CYP2J2/EETs axis. CONCLUSION MiR-3646 accelerated inflammatory response of Ang II-induced hVSMCs via CYP2J2/EETs axis. Our findings illustrated the specific molecular mechanism of miR-3646 regulating hypertension.
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Affiliation(s)
- Runzhi Liu
- Department of Geriatrics, The Third Hospital of Changsha City, Changsha, Hunan Province, P.R. China
| | - Liying Zhong
- Department of Geriatrics, The Third Hospital of Changsha City, Changsha, Hunan Province, P.R. China
| | - Cong Wang
- Department of Geriatrics, The Third Hospital of Changsha City, Changsha, Hunan Province, P.R. China
| | - Yehai Sun
- Department of Geriatrics, The Third Hospital of Changsha City, Changsha, Hunan Province, P.R. China
| | - Wunjuan Ru
- Department of Geriatrics, The Third Hospital of Changsha City, Changsha, Hunan Province, P.R. China
| | - Wei Dai
- Department of Geriatrics, The Third Hospital of Changsha City, Changsha, Hunan Province, P.R. China
| | - Shengnan Yang
- Department of Geriatrics, The Third Hospital of Changsha City, Changsha, Hunan Province, P.R. China
| | - Aimin Zhong
- Department of Geriatrics, The Third Hospital of Changsha City, Changsha, Hunan Province, P.R. China
| | - XiuMei Xie
- Department of Geriatrics, Xiangya Hospital, Central South University, Changsha, Hunan Province, P.R. China
| | - XiaoBin Chen
- Department of Cardiovascular Medicine, Xiangya Hospital, Central South University, Changsha, Hunan Province, P.R. China
| | - Shundong Li
- Department of Geriatrics, The Third Hospital of Changsha City, Changsha, Hunan Province, P.R. China
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Puplà Bartoll A, Bellés Medall MD, Pérez Catalán IE, Roig Martí C, Bodega Azuara J, Gil Candel M, Esteve López V, Ferrando Piqueres R. [Dose adjustment of linezolid due to interacction with rifampicin in infective endocarditis]. Rev Esp Quimioter 2023; 36:436-438. [PMID: 37116051 PMCID: PMC10336317 DOI: 10.37201/req/147.2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 02/08/2023] [Accepted: 02/22/2023] [Indexed: 04/30/2023]
Affiliation(s)
- A Puplà Bartoll
- Aaron Puplà Bartoll, Farmacia Hospitalaria, Hospital General Universitario de Castellón, Castellón de la Plana, Spain.
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Zou LL, Zhao FL, Qi YY, Wang SH, Zhou Q, Geng PW, Zhou YF, Zhang Q, Chen H, Dai DP, Cai JP, Ji FS. Characterization of 15 CYP2J2 variants identified in the Chinese Han population on the metabolism of ebastine and terfenadine in vitro. Front Pharmacol 2023; 14:1186824. [PMID: 37288113 PMCID: PMC10242136 DOI: 10.3389/fphar.2023.1186824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 05/09/2023] [Indexed: 06/09/2023] Open
Abstract
Genetic polymorphism of the cytochrome P450 (CYP) gene can significantly influence the metabolism of endogenous and xenobiotic compounds. However, few studies have focused on the polymorphism of CYP2J2 and its impact on drug catalytic activity, especially in the Chinese Han population. In this study, we sequenced the promoter and exon regions of CYP2J2 in 1,163 unrelated healthy Chinese Han individuals using the multiplex PCR amplicon sequencing method. Then, the catalytic activities of the detected CYP2J2 variants were evaluated after recombinant expression in S. cerevisiae microsomes. As a result, CYP2J2*7, CYP2J2*8, 13 variations in the promoter region and 15 CYP2J2 nonsynonymous variants were detected, of which V15A, G24R, V68A, L166F and A391T were novel missense variations. Immunoblotting results showed that 11 of 15 CYP2J2 variants exhibited lower protein expression than wild-type CYP2J2.1. In vitro functional analysis results revealed that the amino acid changes of 14 variants could significantly influence the drug metabolic activity of CYP2J2 toward ebastine or terfenadine. Specifically, 4 variants with relatively higher allele frequencies, CYP2J2.8, 173_173del, K267fs and R446W, exhibited extremely low protein expression and defective catalytic activities for both substrates. Our results indicated that a high genetic polymorphism of CYP2J2 could be detected in the Chinese Han population, and most genetic variations in CYP2J2 could influence the expression and catalytic activity of CYP2J2. Our data significantly enrich the knowledge of genetic polymorphisms in CYP2J2 and provide new theoretical information for corresponding individualized medication in Chinese and other Asian populations.
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Affiliation(s)
- Li-Li Zou
- The Key Laboratory of Geriatrics, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China
| | - Fang-Ling Zhao
- The Key Laboratory of Geriatrics, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China
| | - Yu-Ying Qi
- The Key Laboratory of Geriatrics, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China
| | - Shuang-Hu Wang
- The Laboratory of Clinical Pharmacy, The Sixth Affiliated Hospital of Wenzhou Medical University, The People’s Hospital of Lishui, Lishui, China
| | - Quan Zhou
- The Laboratory of Clinical Pharmacy, The Sixth Affiliated Hospital of Wenzhou Medical University, The People’s Hospital of Lishui, Lishui, China
| | - Pei-Wu Geng
- The Laboratory of Clinical Pharmacy, The Sixth Affiliated Hospital of Wenzhou Medical University, The People’s Hospital of Lishui, Lishui, China
| | - Yun-Fang Zhou
- The Laboratory of Clinical Pharmacy, The Sixth Affiliated Hospital of Wenzhou Medical University, The People’s Hospital of Lishui, Lishui, China
| | - Qing Zhang
- Department of Cardiology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China
| | - Hao Chen
- Department of Cardiology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China
| | - Da-Peng Dai
- The Key Laboratory of Geriatrics, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China
| | - Jian-Ping Cai
- The Key Laboratory of Geriatrics, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China
| | - Fu-Sui Ji
- The Key Laboratory of Geriatrics, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China
- Department of Cardiology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China
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Leow JWH, Gu Y, Chan ECY. Investigating the relevance of CYP2J2 inhibition for drugs known to cause intermediate to high risk torsades de pointes. Eur J Pharm Sci 2023; 187:106475. [PMID: 37225005 DOI: 10.1016/j.ejps.2023.106475] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 04/10/2023] [Accepted: 05/21/2023] [Indexed: 05/26/2023]
Abstract
Cardiac cytochrome P450 2J2 (CYP2J2) metabolizes endogenous polyunsaturated fatty acid, arachidonic acid (AA), to bioactive regioisomeric epoxyeicosatrienoic acid (EET) metabolites. This endogenous metabolic pathway has been postulated to play a homeostatic role in cardiac electrophysiology. However, it is unknown if drugs that cause intermediate to high risk torsades de pointes (TdP) exhibit inhibitory effects against CYP2J2 metabolism of AA to EETs. In this study, we demonstrated that 11 out of 16 drugs screened with intermediate to high risk of TdP as defined by the Comprehensive in vitro Proarrhythmia Assay (CiPA) initiative are concurrently reversible inhibitors of CYP2J2 metabolism of AA, with unbound inhibitory constant (Ki,AA,u) values ranging widely from 0.132 to 19.9 µM. To understand the physiological relevancy of Ki,AA,u, the in vivo unbound drug concentration within human heart tissue (Cu,heart) was calculated via experimental determination of in vitro unbound partition coefficient (Kpuu) for 10 CYP2J2 inhibitors using AC16 human ventricular cardiomyocytes as well as literature-derived values of fraction unbound in plasma (fu,p) and plasma drug concentrations in clinical scenarios leading to TdP. Notably, all CYP2J2 inhibitors screened belonging to the high TdP risk category, namely vandetanib and bepridil, exhibited highest Kpuu values of 18.2 ± 1.39 and 7.48 ± 1.16 respectively although no clear relationship between Cu,heart and risk of TdP could eventually be determined. R values based on basic models of reversible inhibition as per FDA guidelines were calculated using unbound plasma drug concentrations (Cu,plasma) and adapted using Cu,heart which suggested that 4 out of 10 CYP2J2 inhibitors with intermediate to high risk of TdP demonstrate greatest potential for clinically relevant in vivo cardiac drug-AA interactions. Our results shed novel insights on the relevance of CYP2J2 inhibition in drugs with risk of TdP. Further studies ascertaining the role of CYP2J2 metabolism of AA in cardiac electrophysiology, characterizing inherent cardiac ion channel activities of drugs with risk of TdP as well as in vivo evidence of drug-AA interactions will be required prior to determining if CYP2J2 inhibition could be an alternative mechanism contributing to drug-induced TdP.
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Affiliation(s)
- Jacqueline Wen Hui Leow
- Department of Pharmacy, Faculty of Science, National University of Singapore, 18 Science Drive 4, Singapore, 117543
| | - Yuxiang Gu
- Department of Pharmacy, Faculty of Science, National University of Singapore, 18 Science Drive 4, Singapore, 117543; School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, Heilongjiang, 150001, China
| | - Eric Chun Yong Chan
- Department of Pharmacy, Faculty of Science, National University of Singapore, 18 Science Drive 4, Singapore, 117543.
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Luo L, Yang Y, Fu M, Luo J, Li W, Tu L, Dong R. 11,12-EET suppressed LPS induced TF expression and thrombus formation by accelerating mRNA degradation rate via strengthening PI3K-Akt signaling pathway and inhibiting p38-TTP pathway. Prostaglandins Other Lipid Mediat 2023; 167:106740. [PMID: 37119935 DOI: 10.1016/j.prostaglandins.2023.106740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Revised: 04/12/2023] [Accepted: 04/26/2023] [Indexed: 05/01/2023]
Abstract
Epoxyeicosatrienoic acids (EETs), which are synthesized from arachidonic acid by cytochrome P450 epoxygenases, function primarily as autocrine and paracrine effectors in the cardiovascular system. So far, most research has focused on the vasodilatory, anti-inflammatory, anti-apoptotic and mitogenic properties of EETs in the systemic circulation. However, whether EETs could suppress tissue factor (TF) expression and prevent thrombus formation remains unknown. Here we utilized in vivo and in vitro models to investigate the effects and underlying mechanisms of exogenously EETs on LPS induced TF expression and inferior vein cava ligation induced thrombosis. We observed that the thrombus formation rate and the size of the thrombus were greatly reduced in 11,12-EET treated mice,accompanied by decreased TF and inflammatory cytokines expression. Further in vitro studies showed that by enhancing p38 MAPK activation and subsequent tristetraprolin (TTP) phosphorylation, LPS strengthened the stability of TF mRNA and induced increased TF expression. However, by strengthening PI3K-dependent Akt phosphorylation, which acted as a negative regulator of p38-TTP signaling pathway,11,12-EET reduced LPS-induced TF expression in monocytes. In addition, 11,12-EET inhibited LPS-induced NF-κB nuclear translocation by activating the PI3K/Akt pathway. Further study indicated that the inhibitory effect of 11,12-EET on TF expression was mediated by antagonizing LPS-induced activation of thromboxane prostanoid receptor. In conclusion, our study demonstrated that 11,12-EET prevented thrombosis by reducing TF expression and targeting the CYP2J2 epoxygenase pathway may represent a novel approach to mitigate thrombosis related diseases.
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Affiliation(s)
- Liman Luo
- Department of Geriatric Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Wuhan, Hubei, 430030, China
| | - Yan Yang
- Division of Endocrinology and Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China
| | - Menglu Fu
- Department of Geriatric Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Wuhan, Hubei, 430030, China
| | - Jinlan Luo
- Department of Geriatric Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Wuhan, Hubei, 430030, China
| | - Wenhua Li
- Department of Geriatric Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Wuhan, Hubei, 430030, China
| | - Ling Tu
- Department of Geriatric Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Wuhan, Hubei, 430030, China
| | - Ruolan Dong
- Institute of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China.
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Li Y, You C, Liu Z, He F, Zhao F, Song X, Xie Z, Wei S, Yang Y, Wei H, Che F, Yu J. CYP2C8 and CYP2J2 gene variations increase the risk of hypertensive intracerebral hemorrhage. J Stroke Cerebrovasc Dis 2023; 32:106974. [PMID: 36587509 DOI: 10.1016/j.jstrokecerebrovasdis.2022.106974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 12/11/2022] [Accepted: 12/27/2022] [Indexed: 12/31/2022] Open
Abstract
PURPOSE Many studies have shown that cytochrome P450 (CYP) gene polymorphisms are usually associated with an increased risk of cardiovascular and cerebrovascular diseases. To explore the association of CYP2C8 and CYP2J2 gene polymorphisms with hypertensive intracerebral hemorrhage (HICH) in the Han Chinese population. METHODS Forty HICH patients and 40 control subjects were recruited for this study. Two single nucleotide polymorphisms (SNP) (rs1058932, rs2275622) in the CYP2C8 gene and two SNPs (rs2271800, rs1155002) in the CYP2J2 gene were selected for genotyping by direct sequencing. Statistical analysis was applied to examine the effect of genetic variation on HICH. RESULTS We found that variant alleles of CYP2C8 rs1058932 (A) and rs2275622 (C) were both significantly associated with HICH, especially in females. We also found significant associations of CYP2C8 rs1058932 (A) and rs2275622 (C) variant alleles with poor outcomes in HICH patients, especially in males. CONCLUSIONS CYP2C8 gene polymorphisms might increase the risk of HICH in the Han Chinese population and might lead to poor outcomes. This finding adds to the body of literature supporting novel therapeutic strategies for HICH.
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Affiliation(s)
- Yue Li
- Qingdao University, Qingdao, Shandong, China; Department of Neurology, Linyi People's Hospital, Linyi, Shandong, China
| | - Cuiping You
- Central Laboratory, Linyi People's Hospital, Linyi, Shandong, China
| | - Zhenchuan Liu
- Department of Neurological Intensive Care Unit, Linyi People's Hospital, Linyi, Shandong, China
| | - Feng He
- Department of Neurological Intensive Care Unit, Linyi People's Hospital, Linyi, Shandong, China
| | - Fuchun Zhao
- Department of Neurological Intensive Care Unit, Linyi People's Hospital, Linyi, Shandong, China
| | - Xiaojie Song
- Department of Neurological Intensive Care Unit, Linyi People's Hospital, Linyi, Shandong, China
| | - Zhongxiang Xie
- Department of Neurological Intensive Care Unit, Linyi People's Hospital, Linyi, Shandong, China
| | - Shuai Wei
- Department of Neurological Intensive Care Unit, Linyi People's Hospital, Linyi, Shandong, China
| | - Yongfang Yang
- Rehabilitation department, Linyi People's Hospital, Linyi, Shandong, China
| | - Hongyan Wei
- Department of Neurological Intensive Care Unit, Linyi People's Hospital, Linyi, Shandong, China
| | - Fengyuan Che
- Central Laboratory, Linyi People's Hospital, Linyi, Shandong, China.
| | - Jixu Yu
- Department of Neurology, Linyi People's Hospital, Linyi, Shandong, China.
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9
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Zhang C, Li Q, Cheng Y, Yang X, Chen W, He K, Chen M. Variants in CYP2J2 and CYP2C9 Contribute to Susceptibility of Lung Cancer. Curr Cancer Drug Targets 2022; 23:CCDT-EPUB-127565. [PMID: 36380410 DOI: 10.2174/1568009623666221114115012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 08/21/2022] [Accepted: 09/03/2022] [Indexed: 11/17/2022]
Abstract
BACKGROUND Cytochrome P450 (CYP) enzymes are involved in the metabolism of xenobiotic and carcinogen. In the study, we evaluated the association of CYP2J2 and CYP2C9 variants with lung cancer. METHOD Five polymorphisms in CYP2J2 and four polymorphisms in CYP2C9 were genotyped in 507 lung cancer patients and 505 controls with Agena MassARRAY platform. The linkage of variants with lung cancer risk was evaluated by odds ratio (OR) and 95% confidence interval (CI) in genetic models and haplotype analyses. RESULTS We found that CYP2C9 rs1934967 alleles were associated with lung cancer risk (P < 0.05). In stratified analysis, rs2280274 (women, non-smoker, non-drinker and lymphatic metastasis), rs11207535 (non-smoker and non-drinker), rs10889159 (non-smoker and non-drinker) of CYP2J2, whereas rs1934967 (age ≤ 60m, BMI > 24, squamous carcinoma) of CYP2C9 decreased lung cancer risk (P < 0.05). In addition, the results of linkage disequilibrium (LD) analysis showed that rs2280274|rs4388726 - TG (with adjustment: P = 0.042) of CYP2J2 and rs10509679|rs1934967|rs1934968|rs9332220 - GTGG (without adjustment: P = 0.044) of CYP2C9 were linked with a significantly decreased lung cancer risk. CONCLUSION Our results indicated genetic variants in CYP2J2 and CYP2C9 might contribute to the susceptibility of lung cancer in Chinese population.
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Affiliation(s)
- Chan Zhang
- Department of Respiratory Medicine, The First Affiliated Hospital of School of Medicine of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
- Department of Blood Transfusion, The First People's Hospital of Yunnan Province, the Affiliated Hospital of Kunming University of Science and Technology, Kunming City 650100, Yunnan, China
| | - Qi Li
- Department of Blood Transfusion, The First People's Hospital of Yunnan Province, the Affiliated Hospital of Kunming University of Science and Technology, Kunming City 650100, Yunnan, China
| | - Yujing Cheng
- Department of Blood Transfusion, The First People's Hospital of Yunnan Province, the Affiliated Hospital of Kunming University of Science and Technology, Kunming City 650100, Yunnan, China
| | - Xin Yang
- Department of Blood Transfusion, The First People's Hospital of Yunnan Province, the Affiliated Hospital of Kunming University of Science and Technology, Kunming City 650100, Yunnan, China
| | - Wanlu Chen
- Department of Blood Transfusion, The First People's Hospital of Yunnan Province, the Affiliated Hospital of Kunming University of Science and Technology, Kunming City 650100, Yunnan, China
| | - Kunhua He
- Qujing No.1 Hospital Department of Blood Transfusion, Qujing City 655000, Yunnan Province
| | - Mingwei Chen
- Department of Respiratory Medicine, The First Affiliated Hospital of School of Medicine of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
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10
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Zhao B, Huang J, Lou X, Yao K, Ye M, Mou Q, Wen Z, Duan Q, Zhang H, Zhao Y. Endothelial CYP2J2 overexpression restores the BRB via METTL3-mediated ANXA1 upregulation. FASEB J 2022; 36:e22619. [PMID: 36269280 DOI: 10.1096/fj.202201061rr] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 10/02/2022] [Accepted: 10/10/2022] [Indexed: 11/11/2022]
Abstract
Blood-retinal barrier (BRB) breakdown is responsible for multiple ocular diseases, such as diabetic retinopathy, age-related macular degeneration, and retinal vascular occlusive diseases. Increased vascular permeability contributes to vasogenic edema and tissue damage, with consequent adverse effects on vision. Herein, we found that endothelial CYP2J2 overexpression maintained BRB integrity after ischemia-reperfusion injury and consequently protected against retinal ganglion cell loss. Oxidative stress repressed endothelial ANXA1 expression in vivo and in vitro. CYP2J2 upregulated methyltransferase-like 3 (METTL3) expression and hence promoted ANXA1 translation via ANXA1 m6 A modification in endothelium under oxidative stress. CYP2J2 maintained the distribution of endothelial tight junctions and adherens junctions in an ANXA1-dependent manner. Endothelial ANXA1 plays an indispensable role in vascular homeostasis and stabilization during development. Endothelial ANXA1 deletion disrupted retinal vascular perfusion as well as BRB integrity. CYP2J2 metabolites restored BRB integrity in the presence of ANXA1. Our findings identified the CYP2J2-METTL3-ANXA1 pathway as a potential therapeutic target for relieving BRB impairments.
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Affiliation(s)
- Bowen Zhao
- Department of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jingqiu Huang
- Department of Ophthalmology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Xiaotong Lou
- Department of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ke Yao
- Department of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Meng Ye
- Department of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qianxue Mou
- Department of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zheng Wen
- Division of Cardiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qiming Duan
- Gladstone Institutes, San Francisco, California, USA
| | - Hong Zhang
- Department of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yin Zhao
- Department of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Abstract
INTRODUCTION Cytochrome P450s (CYPs) are a superfamily of monooxygenases with diverse biological roles. CYP2J2 is an isozyme highly expressed in the heart where it metabolizes endogenous substrates such as N-3/N-6 polyunsaturated fatty acids (PUFA) to produce lipid mediators involved in homeostasis and cardioprotective responses. Expanding our knowledge of the role CYP2J2 has within the heart is important for understanding its impact on cardiac health and disease. AREAS COVERED The objective of this review was to assess the state of knowledge regarding cardiac CYP2J2. A literature search was conducted using PubMed-MEDLINE (from 2022 and earlier) to evaluate relevant studies regarding CYP2J2 mediated cardioprotection, small molecule modulators, effects of CYP2J2 substrates toward biologically relevant effects and implications of CYP2J2 polymorphisms and sexual dimorphism in the heart. EXPERT OPINION Cardiac CYP2J2-mediated metabolism of endogenous and exogenous substrates have been shown to impact cardiac function. Identifying individual factors, like sex and age, that affect CYP2J2 require further elucidation to better understand CYP2J2's clinical relevance. Resolving the biological targets and activities of CYP2J2-derived PUFA metabolites will be necessary to safely target CYP2J2 and design novel analogues. Targeting CYP2J2 for therapeutic aims offers a potential novel approach to regulating cardiac homeostasis, drug metabolism and cardioprotection.
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Kojima A, Nadai M, Murayama N, Yamazaki H, Katoh M. Effects of multi-kinase inhibitors on the activity of cytochrome P450 2J2. Xenobiotica 2022; 52:669-675. [PMID: 36251932 DOI: 10.1080/00498254.2022.2137068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
1. Cytochrome P450 2J2 (CYP2J2) shows high expression in extrahepatic tissues, including the heart and kidney and in tumours. Inhibition of CYP2J2 has attracted attention for cancer treatment because it metabolises arachidonic acid (AA) to epoxyeicosatrienoic acid (EET), which inhibits apoptosis and promotes tumour growth. Multi-kinase inhibitor (MKI) is a molecular-targeted drug with antitumor activities. This study aimed to clarify the inhibitory effects of MKIs on CYP2J2 activity. We also investigated whether MKIs affected CYP2J2-catalysed EET formation from AA.2. Twenty MKIs showed different inhibitory potencies against astemizole O-demethylation in CYP2J2. In particular, apatinib, motesanib, and vatalanib strongly inhibited astemizole O-demethylation. These three MKIs exhibited competitive inhibition with inhibition constant (Ki) values of 9.3, 15.4, and 65.0 nM, respectively. Apatinib, motesanib, and vatalanib also inhibited CYP2J2-catalysed 14,15-EET formation from AA.3. In simulations of docking to CYP2J2, the U energy values of apatinib, motesanib, and vatalanib were low, and measured -84.5, -69.9, and -52.3 kcal/mol, respectively.4. In conclusion, apatinib, motesanib, and vatalanib strongly inhibited CYP2J2 activity, suggesting that the effects of a given CYP2J2 substrate may be altered upon the administration of these MKIs.
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Affiliation(s)
- Ayaka Kojima
- Laboratory of Pharmaceutics, Faculty of Pharmacy, Meijo University, Nagoya, Japan
| | - Masayuki Nadai
- Laboratory of Pharmaceutics, Faculty of Pharmacy, Meijo University, Nagoya, Japan
| | - Norie Murayama
- Laboratory of Drug Metabolism and Pharmacokinetics, Showa Pharmaceutical University, Machida, Japan
| | - Hiroshi Yamazaki
- Laboratory of Drug Metabolism and Pharmacokinetics, Showa Pharmaceutical University, Machida, Japan
| | - Miki Katoh
- Laboratory of Pharmaceutics, Faculty of Pharmacy, Meijo University, Nagoya, Japan
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13
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Kim JS, Arango AS, Shah S, Arnold WR, Tajkhorshid E, Das A. Anthracycline derivatives inhibit cardiac CYP2J2. J Inorg Biochem 2022; 229:111722. [PMID: 35078036 PMCID: PMC8860876 DOI: 10.1016/j.jinorgbio.2022.111722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 01/05/2022] [Accepted: 01/06/2022] [Indexed: 11/20/2022]
Abstract
Anthracycline chemotherapeutics are highly effective, but their clinical usefulness is hampered by adverse side effects such as cardiotoxicity. Cytochrome P450 2J2 (CYP2J2) is a cytochrome P450 epoxygenase in human cardiomyocytes that converts arachidonic acid (AA) to cardioprotective epoxyeicosatrienoic acid (EET) regioisomers. Herein, we performed biochemical studies to understand the interaction of anthracycline derivatives (daunorubicin, doxorubicin, epirubicin, idarubicin, 5-iminodaunorubicin, zorubicin, valrubicin, and aclarubicin) with CYP2J2. We utilized fluorescence polarization (FP) to assess whether anthracyclines bind to CYP2J2. We found that aclarubicin bound the strongest to CYP2J2 despite it having large bulky groups. We determined that ebastine competitively inhibits anthracycline binding, suggesting that ebastine and anthracyclines may share the same binding site. Molecular dynamics and ensemble docking revealed electrostatic interactions between the anthracyclines and CYP2J2, contributing to binding stability. In particular, the glycosamine groups in anthracyclines are stabilized by binding to glutamate and aspartate residues in CYP2J2 forming salt bridge interactions. Furthermore, we used iterative ensemble docking schemes to gauge anthracycline influence on EET regioisomer production and anthracycline inhibition on AA metabolism. This was followed by experimental validation of CYP2J2-mediated metabolism of anthracycline derivatives using liquid chromatography tandem mass spectrometry fragmentation analysis and inhibition of CYP2J2-mediated AA metabolism by these derivatives. Taken together, we use both experimental and theoretical methodologies to unveil the interactions of anthracycline derivatives with CYP2J2. These studies will help identify alternative mechanisms of how anthracycline cardiotoxicity may be mediated through the inhibition of cardiac P450, which will aid in the design of new anthracycline derivatives with lower toxicity.
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Affiliation(s)
- Justin S Kim
- Division of Nutritional Sciences, University of Illinois Urbana-Champaign, Urbana, IL 61801, United States of America
| | - Andres S Arango
- Center for Biophysics and Quantitative Biology, University of Illinois Urbana-Champaign, Urbana, IL 61801, United States of America; Beckman Institute for Advanced Science and Technology, University of Illinois Urbana-Champaign, Urbana, IL 61801, United States of America
| | - Swapnil Shah
- Department of Biochemistry, University of Illinois Urbana-Champaign, Urbana, IL 61801, United States of America
| | - William R Arnold
- Department of Biochemistry, University of Illinois Urbana-Champaign, Urbana, IL 61801, United States of America
| | - Emad Tajkhorshid
- Center for Biophysics and Quantitative Biology, University of Illinois Urbana-Champaign, Urbana, IL 61801, United States of America; Beckman Institute for Advanced Science and Technology, University of Illinois Urbana-Champaign, Urbana, IL 61801, United States of America; Department of Biochemistry, University of Illinois Urbana-Champaign, Urbana, IL 61801, United States of America; Department of Bioengineering, University of Illinois Urbana-Champaign, Urbana, IL 61801, United States of America
| | - Aditi Das
- Division of Nutritional Sciences, University of Illinois Urbana-Champaign, Urbana, IL 61801, United States of America; Center for Biophysics and Quantitative Biology, University of Illinois Urbana-Champaign, Urbana, IL 61801, United States of America; Beckman Institute for Advanced Science and Technology, University of Illinois Urbana-Champaign, Urbana, IL 61801, United States of America; Department of Bioengineering, University of Illinois Urbana-Champaign, Urbana, IL 61801, United States of America; Department of Comparative Biosciences, University of Illinois Urbana-Champaign, Urbana, IL 61801, United States of America.
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14
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Gui L, Chen Y, Diao Y, Chen Z, Duan J, Liang X, Li H, Liu K, Miao Y, Gao Q, Li Z, Yang J, Li Y. ROS-responsive nanoparticle-mediated delivery of CYP2J2 gene for therapeutic angiogenesis in severe hindlimb ischemia. Mater Today Bio 2022; 13:100192. [PMID: 34988419 PMCID: PMC8695365 DOI: 10.1016/j.mtbio.2021.100192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 12/07/2021] [Accepted: 12/17/2021] [Indexed: 11/21/2022] Open
Abstract
With critical limb ischemia (CLI) being a multi-factorial disease, it is becoming evident that gene therapy with a multiple bio-functional growth factor could achieve better therapeutic outcomes. Cytochrome P450 epoxygenase-2J2 (CYP2J2) and its catalytic products epoxyeicosatrienoic acids (EETs) exhibit pleiotropic biological activities, including pro-angiogenic, anti-inflammatory and cardiovascular protective effects, which are considerably beneficial for reversing ischemia and restoring local blood flow in CLI. Here, we designed a nanoparticle-based pcDNA3.1-CYP2J2 plasmid DNA (pDNA) delivery system (nanoparticle/pDNA complex) composed of a novel three-arm star block copolymer (3S-PLGA-po-PEG), which was achieved by conjugating three-armed PLGA to PEG via the peroxalate ester bond. Considering the multiple bio-functions of CYP2J2-EETs and the sensitivity of the peroxalate ester bond to H2O2, this nanoparticle-based gene delivery system is expected to exhibit excellent pro-angiogenic effects while improving the high oxidative stress and inflammatory micro-environment in ischemic hindlimb. Our study reports the first application of CYP2J2 in the field of therapeutic angiogenesis for CLI treatment and our findings demonstrated good biocompatibility, stability and sustained release properties of the CYP2J2 nano-delivery system. In addition, this nanoparticle-based gene delivery system showed high transfection efficiency and efficient VEGF expression in vitro and in vivo. Intramuscular injection of nanoparticle/pDNA complexes into mice with hindlimb ischemia resulted in significant rapid blood flow recovery and improved muscle repair compared to mice treated with naked pDNA. In summary, 3S-PLGA-po-PEG/CYP2J2-pDNA complexes have tremendous potential and provide a practical strategy for the treatment of limb ischemia. Moreover, 3S-PLGA-po-PEG nanoparticles might be useful as a potential non-viral carrier for other gene delivery applications. Cytochrome P450 epoxygenase-2J2 (CYP2J2) was first applied in the field of therapeutic angiogenesis for critical limb ischemia treatment. The ROS-responsive three-arm star block copolymer (3S-PLGA-po-PEG) was synthesized with peroxalate ester as H2O2-responsive linkages through the esterification reaction of oxalyl chloride and hydroxyl group. The CYP2J2 nano-delivery system achieved high transfection efficiency and significant therapeutic angiogenesis effect.
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Affiliation(s)
- Liang Gui
- Department of Vascular Surgery, Beijing Hospital, National Center of Gerontology; Institute of Geriatric Medicine, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, PR China.,Graduate School of Peking Union Medical College, Beijing, 100730, PR China.,Department of Vascular Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, 210029, PR China
| | - Youlu Chen
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, 300192, PR China
| | - Yongpeng Diao
- Department of Vascular Surgery, Beijing Hospital, National Center of Gerontology; Institute of Geriatric Medicine, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, PR China
| | - Zuoguan Chen
- Department of Vascular Surgery, Beijing Hospital, National Center of Gerontology; Institute of Geriatric Medicine, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, PR China
| | - Jianwei Duan
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, 300192, PR China
| | - Xiaoyu Liang
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, 300192, PR China
| | - Huiyang Li
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, 300192, PR China
| | - Kaijing Liu
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, 300192, PR China
| | - Yuqing Miao
- Department of Vascular Surgery, Beijing Hospital, National Center of Gerontology; Institute of Geriatric Medicine, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, PR China
| | - Qing Gao
- Department of Vascular Surgery, Beijing Hospital, National Center of Gerontology; Institute of Geriatric Medicine, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, PR China
| | - Zhichao Li
- Department of Vascular Surgery, Beijing Hospital, National Center of Gerontology; Institute of Geriatric Medicine, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, PR China
| | - Jing Yang
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, 300192, PR China
| | - Yongjun Li
- Department of Vascular Surgery, Beijing Hospital, National Center of Gerontology; Institute of Geriatric Medicine, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, PR China
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Ding Y, Tu P, Chen Y, Huang Y, Pan X, Chen W. CYP2J2 and EETs protect against pulmonary arterial hypertension with lung ischemia-reperfusion injury in vivo and in vitro. Respir Res 2021; 22:291. [PMID: 34774051 PMCID: PMC8590292 DOI: 10.1186/s12931-021-01891-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Accepted: 11/05/2021] [Indexed: 01/05/2023] Open
Abstract
Background Cytochrome P450 epoxygenase 2J2 (CYP2J2) metabolizes arachidonic acid to epoxyeicosatrienoic acids (EETs), which exert anti-inflammatory, anti-apoptotic, pro-proliferative, and antioxidant effects on the cardiovascular system. However, the role of CYP2J2 and EETs in pulmonary arterial hypertension (PAH) with lung ischemia–reperfusion injury (LIRI) remains unclear. In the present study, we investigated the effects of CYP2J2 overexpression and exogenous EETs on PAH with LIRI in vitro and in vivo. Methods CYP2J2 gene was transfected into rat lung tissue by recombinant adeno-associated virus (rAAV) to increase the levels of EETs in serum and lung tissue. A rat model of PAH with LIRI was constructed by intraperitoneal injection of monocrotaline (50 mg/kg) for 4 weeks, followed by clamping of the left pulmonary hilum for 1 h and reperfusion for 2 h. In addition, we established a cellular model of human pulmonary artery endothelial cells (HPAECs) with TNF-α combined with anoxia/reoxygenation (anoxia for 8 h and reoxygenation for 16 h) to determine the effect and mechanism of exogenous EETs. Results CYP2J2 overexpression significantly reduced the inflammatory response, oxidative stress and apoptosis associated with lung injury in PAH with LIRI. In addition, exogenous EETs suppressed inflammatory response and reduced intracellular reactive oxygen species (ROS) production and inhibited apoptosis in a tumor necrosis factor alpha (TNF-α) combined hypoxia-reoxygenation model of HPAECs. Our further studies revealed that the anti-inflammatory effects of CYP2J2 overexpression and EETs might be mediated by the activation of PPARγ; the anti-apoptotic effects might be mediated by the PI3K/AKT pathway. Conclusions CYP2J2 overexpression and EETs protect against PAH with LIRI via anti-inflammation, anti-oxidative stress and anti-apoptosis, suggesting that increased levels of EETs may be a promising strategy for the prevention and treatment of PAH with LIRI. Graphical Abstract ![]()
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Affiliation(s)
- Yun Ding
- Department of Thoracic Surgery, Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, 350001, Fujian, China
| | - Pengjie Tu
- Department of Thoracic Surgery, Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, 350001, Fujian, China
| | - Yiyong Chen
- Department of Thoracic Surgery, Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, 350001, Fujian, China
| | - Yangyun Huang
- Department of Thoracic Surgery, Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, 350001, Fujian, China
| | - Xiaojie Pan
- Department of Thoracic Surgery, Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, 350001, Fujian, China
| | - Wenshu Chen
- Department of Thoracic Surgery, Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, 350001, Fujian, China.
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Zhang J, Xiong Q, Yang L, Xue Y, Ke M, Li Z. Cytochrome P450 2J2 inhibits the proliferation and angiogenesis of retinal vascular endothelial cells by regulating the Notch signaling pathway in a hypoxia-induced retinopathy model. Bioengineered 2021; 12:10878-10890. [PMID: 34666595 PMCID: PMC8809993 DOI: 10.1080/21655979.2021.1994722] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Retinopathy of Prematurity (ROP), a type of retinal neovascularization in premature infants, has become a serious problem that drastically affects the quality of life of premature infants. ROP is associated with angiogenesis and neovascularization. Here, we aimed to explain the function and latent roles of Cytochrome P450 2J2 (CYP2J2) in hypoxia-induced retinopathy in retinal vascular endothelial cells (HRVECs). HRVECs were stimulated with hypoxia for 24 h to establish an in vitro retinopathy model. Cell viability and migration were evaluated using 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2-H-tetrazolium bromide (MTT) and Transwell assays, respectively. Protein and gene expression was determined by reverse transcription quantitative real-time polymerase chain reaction (RT-qPCR) and Western blot analysis. We observed that pcDNA3.1(+)-CYP2J2 promoted CYP2J2 and Jagged1 expression, while Dll4 was down-regulated in hypoxia-stimulated HRVECs. Additionally, pcDNA3.1(+)-CYP2J2 inhibited HRVEC viability, reduced PCNA expression, and inhibited the migration of HRVECs. Further, the Notch pathway was inhibited in the Hypoxia+pcDNA3.1(+)-CYP2J2 group. Opposite results were observed upon Terfenadone treatment in hypoxia induced HRVECs. Finally, our findings further verified that DAPT promotes the effects of CYP2J2 on cell viability, migration, and Notch signaling in hypoxia-induced HRVECs, while EDTA reversed the inhibitory effects of CYP2J2 on hypoxia-induced HRVECs. In conclusions, CYP2J2 was found to inhibit the viability and angiogenesis of HRVECs by inhibiting Notch signaling in a hypoxia-induced retinopathy model.
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Affiliation(s)
- Jing Zhang
- Department of Ophthalmology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Qi Xiong
- Department of Ophthalmology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Lin Yang
- Department of Ophthalmology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Yanni Xue
- Department of Ophthalmology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Min Ke
- Department of Ophthalmology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Zhi Li
- Department of Ophthalmology, Zhongnan Hospital of Wuhan University, Wuhan, China
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Li H, He Y, Wang L, Xing S, Peng L, Yuan D, Jin T. Analysis of CYP2J2 mutations in the Chinese Uyghur population. Am J Transl Res 2021; 13:10871-10881. [PMID: 34650768 PMCID: PMC8507070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 09/07/2021] [Indexed: 06/13/2023]
Abstract
Genetic characteristics of CYP2J2 in different populations may be helpful to explore interethnic variability in drug response and disease susceptibility. There is no information about the genetic profile of CYP2J2 in the Chinese Uyghur population. We used PCR and first-generation sequencing technology to investigate CYP2J2 mutations in 100 unrelated healthy Chinese Uyghurs. The chi-square test was used to compare genotyping data of CYP2J2 in the Chinese Uyghur population with other ethnic groups. The SIFT and PolyPhen-2 online tools were used to predict the protein function of the novel nonsynonymous mutations in CYP2J2. CADD software was used to predict pathogenicity of the mutations. We found twenty-eight mutations in CYP2J2, five new mutations, three alleles (*1, *7 and *8), and three genotypes (*1/*1, *1/*7 and *1/*8) in the Chinese Uyghur population. The allele frequencies of CYP2J2 *1, *7 and *8 were 96%, 3.45%, and 0.5%, respectively. Interethnic comparison found that subgenotype *1 in Uyghur was significantly higher than in Taiwanese and African Americans, and *7 frequency in Uyghur was slightly lower than that in Taiwanese and African Americans (P<0.05); *8 was only found in Chinese Uyghur and Korean populations, with frequencies of 0.5% and 0.8%, respectively. Furthermore, the protein prediction results revealed that the five nonsynonymous mutations could influence protein structure and function. The observations of this study give rise to useful information on CYP2J2 mutations in Chinese Uyghurs, which may support future important clinical implications for the use of medications metabolized by CYP2J2.
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Affiliation(s)
- Haiyue Li
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Northwest UniversityXi’an 710069, Shaanxi, China
| | - Yongjun He
- Key Laboratory for Basic Life Science Research of Tibet Autonomous Region, School of Medicine, Xizang Minzu UniversityXianyang 712082, Shaanxi, China
| | - Li Wang
- Key Laboratory for Basic Life Science Research of Tibet Autonomous Region, School of Medicine, Xizang Minzu UniversityXianyang 712082, Shaanxi, China
| | - Shishi Xing
- Key Laboratory for Basic Life Science Research of Tibet Autonomous Region, School of Medicine, Xizang Minzu UniversityXianyang 712082, Shaanxi, China
| | - Linna Peng
- Key Laboratory for Basic Life Science Research of Tibet Autonomous Region, School of Medicine, Xizang Minzu UniversityXianyang 712082, Shaanxi, China
| | - Dongya Yuan
- Key Laboratory for Basic Life Science Research of Tibet Autonomous Region, School of Medicine, Xizang Minzu UniversityXianyang 712082, Shaanxi, China
| | - Tianbo Jin
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Northwest UniversityXi’an 710069, Shaanxi, China
- Key Laboratory for Basic Life Science Research of Tibet Autonomous Region, School of Medicine, Xizang Minzu UniversityXianyang 712082, Shaanxi, China
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Tian X, Zhou M, Ning J, Deng X, Feng L, Huang H, Yao D, Ma X. The development of novel cytochrome P450 2J2 ( CYP2J2) inhibitor and the underlying interaction between inhibitor and CYP2J2. J Enzyme Inhib Med Chem 2021; 36:737-748. [PMID: 33682565 PMCID: PMC7946002 DOI: 10.1080/14756366.2021.1896500] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
Abstract
Human Cytochrome P450 2J2 (CYP2J2) as an important metabolic enzyme, plays a crucial role in metabolism of polyunsaturated fatty acids (PUFAs). Elevated levels of CYP2J2 have been associated with various types of cancer, and therefore it serves as a potential drug target. Herein, using a high-throughput screening approach based on enzymic activity of CYP2J2, we rapidly and effectively identified a novel natural inhibitor (Piperine, 9a) with IC50 value of 0.44 μM from 108 common herbal medicines. Next, a series of its derivatives were designed and synthesised based on the underlying interactions of Piperine with CYP2J2. As expected, the much stronger inhibitors 9k and 9l were developed and their inhibition activities increased about 10 folds than Piperine with the IC50 values of 40 and 50 nM, respectively. Additionally, the inhibition kinetics illustrated the competitive inhibition types of 9k and 9l towards CYP2J2, and Ki were calculated to be 0.11 and 0.074 μM, respectively. Furthermore, the detailed interaction mechanism towards CYP2J2 was explicated by docking and molecular dynamics, and our results revealed the residue Thr114 and Thr 315 of CYP2J2 were the critical sites of action, moreover the spatial distance between the carbon atom of ligand methylene and Fe atom of iron porphyrin coenzyme was the vital interaction factor towards human CYP2J2.
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Affiliation(s)
- Xiangge Tian
- Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Traditional Chinese Medicine, Nanchang, China
| | - Meirong Zhou
- Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Traditional Chinese Medicine, Nanchang, China
| | - Jing Ning
- Dalian Key Laboratory of Metabolic Target Characterization and Traditional Chinese Medicine Intervention, Dalian Medical University, Dalian, China
| | - Xiaopeng Deng
- Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Traditional Chinese Medicine, Nanchang, China
| | - Lei Feng
- Dalian Key Laboratory of Metabolic Target Characterization and Traditional Chinese Medicine Intervention, Dalian Medical University, Dalian, China
| | - Huilian Huang
- Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Traditional Chinese Medicine, Nanchang, China
| | - Dahong Yao
- School of Pharmaceutical Sciences, Shenzhen Technology University, Shenzhen, China
| | - Xiaochi Ma
- Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Traditional Chinese Medicine, Nanchang, China
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Leow JWH, Verma RK, Lim ABH, Fan H, Chan ECY. Atypical kinetics of cytochrome P450 2J2: Epoxidation of arachidonic acid and reversible inhibition by xenobiotic inhibitors. Eur J Pharm Sci 2021; 164:105889. [PMID: 34044117 DOI: 10.1016/j.ejps.2021.105889] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 05/04/2021] [Accepted: 05/20/2021] [Indexed: 01/08/2023]
Abstract
Extrahepatic CYP2J2 metabolism of arachidonic acid (AA) to bioactive regioisomeric epoxyeicosatrienoic acids (EETs) is implicated in both physiological and pathological conditions. Here, we aimed to characterize atypical substrate inhibition kinetics of this endogenous metabolic pathway and its reversible inhibition by xenobiotic inhibitors when AA is used as the physiologically-relevant substrate vis-à-vis conventional probe substrate astemizole (AST). As compared to typical Michaelis-Menten kinetics observed for AST, complete substrate inhibition was observed for CYP2J2 metabolism of AA to 14,15-EET whereby velocity of the reaction declined significantly at concentrations of AA above 20-30 µM with an estimated substrate inhibition constant (Ks) of 31 µM. In silico sequential docking of two AA substrates to orthosteric (OBS) and adjacent secondary binding sites (SBS) within a 3-dimensional homology model of CYP2J2 revealed favorable and comparable binding poses of glide-scores -3.1 and -3.8 respectively. Molecular dynamics (MD) simulations ascertained CYP2J2 conformational stability with dual AA substrate binding as time-dependent root mean squared deviation (RMSD) of protein Cα atoms and ligand heavy atoms stabilized to a plateau in all but one trajectory (n=6). The distance between heme-iron and ω6 (C14, C15) double bond of AA in OBS also increased from 7.5 ± 1.4 Å to 8.5 ± 1.8 Å when CYP2J2 was simulated with only AA in OBS versus the presence of AA in both OBS and SBS (p<0.001), supporting the observed in vitro substrate inhibition phenomenon. Poor correlation was observed between inhibitory constants (Ki) determined for a panel of nine competitive and mixed mode xenobiotic inhibitors against CYP2J2 metabolism of AA as compared to AST, whereby 4 out of 9 drugs had a greater than 5-fold difference between Ki values. Nonlinear Eadie-Hofstee plots illustrated that complete substrate inhibition of CYP2J2 by AA was not attenuated even at high concentrations of xenobiotic inhibitors which further corroborates that CYP2J2 may accommodate three or more ligands simultaneously. In light of the atypical kinetics, our results highlight the importance of using physiologically-relevant substrates in in vitro enzymatic inhibition assays for the characterization of xenobiotic-endobiotic interactions which is applicable to other complex endogenous metabolic pathways beyond CYP2J2 metabolism of AA to EETs. The accurate determination of Ki would further facilitate the association of xenobiotic-endobiotic interactions to observed therapeutic or toxic outcomes.
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Affiliation(s)
- Jacqueline Wen Hui Leow
- Department of Pharmacy, Faculty of Science, National University of Singapore, 18 Science Drive 4, Singapore 117543
| | - Ravi Kumar Verma
- Bioinformatics Institute (BII), Agency for Science, Technology and Research (A*STAR), 30 Biopolis Street, #07-01 Matrix, Singapore 138671
| | - Amos Boon Hao Lim
- Department of Pharmacy, Faculty of Science, National University of Singapore, 18 Science Drive 4, Singapore 117543
| | - Hao Fan
- Bioinformatics Institute (BII), Agency for Science, Technology and Research (A*STAR), 30 Biopolis Street, #07-01 Matrix, Singapore 138671
| | - Eric Chun Yong Chan
- Department of Pharmacy, Faculty of Science, National University of Singapore, 18 Science Drive 4, Singapore 117543.
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Zhao T, Chen Y, Wang D, Wang L, Dong P, Zhao S, Wang C, Meng Q, Sun H, Liu K, Wu J. Identifying the Dominant Contribution of Human Cytochrome P450 2J2 to the Metabolism of Rivaroxaban, an Oral Anticoagulant. Cardiovasc Drugs Ther 2021. [PMID: 33411110 DOI: 10.1007/s10557-020-07129-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/10/2020] [Indexed: 11/25/2022]
Abstract
PURPOSE Rivaroxaban, an oral anticoagulant, undergoes the metabolism mediated by human cytochrome P450 (CYP). The present study is to quantitatively analyze and compare the contributions of multiple CYPs in the metabolism of rivaroxaban to provide new information for medication safety. METHODS The metabolic stability of rivaroxaban in the presence of human liver microsomes (HLMs) and recombinant CYPs was systematically evaluated to estimate the participation of various CYP isoforms. Furthermore, the catalytic efficiency of CYP isoforms was compared via metabolic kinetic studies of rivaroxaban with recombinant CYP isoenzymes, as well as via CYP-specific inhibitory studies. Additionally, docking simulations were used to illustrate molecular interactions. RESULTS Multiple CYP isoforms were involved in the hydroxylation of rivaroxaban, with decreasing catalytic rates as follows: CYP2J2 > 3A4 > 2D6 > 4F3 > 1A1 > 3A5 > 3A7 > 2A6 > 2E1 > 2C9 > 2C19. Among the CYPs, 2J2, 3A4, 2D6, and 4F3 were the four major isoforms responsible for rivaroxaban metabolism. Notably, the intrinsic clearance of rivaroxaban catalyzed by CYP2J2 was nearly 39-, 64-, and 100-fold that catalyzed by CYP3A4, 2D6, and 4F3, respectively. In addition, rivaroxaban hydroxylation was inhibited by 41.1% in the presence of the CYP2J2-specific inhibitor danazol, which was comparable to the inhibition rate of 43.3% by the CYP3A-specific inhibitor ketoconazole in mixed HLMs. Furthermore, molecular simulations showed that rivaroxaban is principally bound to CYP2J2 by π-alkyl bonds, carbon-hydrogen bonds, and alkyl interactions. CONCLUSION CYP2J2 dominated the hydroxylation of rivaroxaban, which may provide new insight into clinical drug interactions involving rivaroxaban.
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Gui L, Xu Q, Huang J, Wu G, Tang H, Hui L, Hua P, Zhang L, Zhu Y. CYP2J2 promotes the development of hepatocellular carcinoma by increasing the EETs production to improve HIF-1α stability. Am J Transl Res 2020; 12:7923-7937. [PMID: 33437370 PMCID: PMC7791520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Accepted: 10/17/2020] [Indexed: 06/12/2023]
Abstract
OBJECTIVE This study aimed to explore the function and mechanism of Cytochrome P450 2J2 (CYP2J2) epoxygenase and epoxyeicosatrienoic acids (EETs) in the malignant development of hepatocellular carcinoma (HCC). METHOD The expressional levels of EETs and CYP2J2 in HCC tissues and cell lines were quantified by ELISA, western blot and RT-qPCR, respectively. The effects of EET and CYP2J2 on HCC development were analyzed by CCK-8 assays, flow cytometry analysis, colony formation and transwell assays. The effect of CYP2J2-EET metabolism on stability of HIF-1α was detected by western blot experiments. HIF-1α inhibitor, YC-1, was used to probe the relationship between HIF-1α and metastasis of HCC cells. Finally, xenograft experiments were established to investigate the function of CYP2J2-EETs metabolism in HCC tumorigenesis in vivo. RESULT CYP2J2, 11, 12-EET and 14, 15-EET were up-regulated in HCC tissues and Huh-7, HepG2 cell lines. Addition of exogenous 14, 15-EET accelerated proliferation and metastasis of HCC cells. Knockdown of CYP2J2 inhibited growth and metastasis of HCC cells and malignant xenograft, which was obviously reversed by addition of 14, 15-EET. Moreover, in Huh-7 and HepG2 cells, CYP2J2-EET metabolism elevated the expression of HIF-1α and its downstream factors including VEGFA, PDK1, GLUT1 and DDIT4 through suppressing the expression of PHD. Treatment of YC-1 remarkably suppressed the HCC cells proliferation and restored the effect of 14, 15-EET on tumor size in vivo. CONCLUSION The up-regulated levels of CYP2J2 and 14, 15-EET in HCC cells improved the stability of HIF-1α thourgh inhibiting PHD expression, which further promoted the malignant development of HCC.
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Affiliation(s)
- Liang Gui
- Department of Vascular Surgery, Beijing Hospital, National Center of GerontologyBeijing 100730, China
- Institute of Geriatric Medicine, Chinese Academy of Medical SciencesBeijing 100730, China
| | - Qiang Xu
- Department of Intervention, Wujin Hospital Affiliated to Jiangsu UniversityChangzhou 213002, Jiangsu, China
| | - Juju Huang
- Department of Gastroenterology, The Affiliated Wuxi No. 2 People’s Hospital of Nanjing Medical UniversityWuxi 214002, Jiangsu, China
| | - Gaojue Wu
- Department of Gastroenterology, The Affiliated Wuxi No. 2 People’s Hospital of Nanjing Medical UniversityWuxi 214002, Jiangsu, China
| | - Hong Tang
- Department of Gastroenterology, The Affiliated Wuxi No. 2 People’s Hospital of Nanjing Medical UniversityWuxi 214002, Jiangsu, China
| | - Li Hui
- Department of Gastroenterology, The Affiliated Wuxi No. 2 People’s Hospital of Nanjing Medical UniversityWuxi 214002, Jiangsu, China
| | - Ping Hua
- Department of Gastroenterology, The Affiliated Wuxi No. 2 People’s Hospital of Nanjing Medical UniversityWuxi 214002, Jiangsu, China
| | - Lili Zhang
- Department of Gastroenterology, The Affiliated Wuxi No. 2 People’s Hospital of Nanjing Medical UniversityWuxi 214002, Jiangsu, China
| | - Yingwei Zhu
- Department of Gastroenterology, The Affiliated Wuxi No. 2 People’s Hospital of Nanjing Medical UniversityWuxi 214002, Jiangsu, China
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Lei X, Chen X, Quan Y, Tao Y, Li J. Targeting CYP2J2 to Enhance the Anti-Glioma Efficacy of Cannabinoid Receptor 2 Stimulation by Inhibiting the Pro-Angiogenesis Function of M2 Microglia. Front Oncol 2020; 10:574277. [PMID: 33330047 PMCID: PMC7729163 DOI: 10.3389/fonc.2020.574277] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Accepted: 10/28/2020] [Indexed: 12/14/2022] Open
Abstract
Enhancing the therapeutic efficacy of anti-tumor drugs is essential for cancer management. Although cannabinoid receptor 2 (CB2R) stimulation exerts anti-tumor action in glioma cells by regulating cellular proliferation, differentiation, or apoptosis, selective CB2R agonist alone does not achieve a satisfactory therapeutic outcome. Herein, we aimed to evaluate the possible strategy for enhancing the anti-glioma efficacy of JWH133, a selective CB2R agonist. In this study, immunofluorescence and qRT-PCR were used to investigate microglia polarization. Tumor growth was monitored via bioluminescent imaging using the IVIS Spectrum System. The angiogenesis of human brain microvascular endothelial cells (HBMECs) was detected by the tube formation assay. qRT-PCR was used to investigate cytochrome P450 2J2 (CYP2J2) and 11,12-epoxyeicosatrienoic acid (11,12-EET) expression. Our results showed that administration of JWH133 significantly promoted microglial M2 polarization both in vitro and in vivo. The medium supernatant of M2 microglia induced by JWH133 treatment facilitated angiogenesis of HBMECs. CYP2J2 expression and 11,12-EET release in the supernatant of JWH133-induced M2 microglia were significantly upregulated. Treatment with 11,12-EET prompted HBMEC angiogenesis and glioma growth. CYP2J2 knockdown restrained the release of 11,12-EET and significantly enhanced the anti-tumor effect of JWH133 on glioma. This study showed that targeting CYP2J2 might be a beneficial strategy to enhance the anti-glioma efficacy of JWH133 by inhibiting the pro-angiogenesis function of M2 microglia.
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Affiliation(s)
- Xuejiao Lei
- Department of Neurosurgery and Key Laboratory of Neurotrauma, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Xuezhu Chen
- Department of Neurosurgery and Key Laboratory of Neurotrauma, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Yulian Quan
- Department of Neurosurgery and Key Laboratory of Neurotrauma, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Yihao Tao
- Department of Neurosurgery, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Junlong Li
- Office of Scientific Research Administration, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
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Habieb MS, Dawood AA, Emara MM, Elhelbawy MG, Elhelbawy NG. The Human Genetic Variants CYP2J2 rs2280275 and EPHX2 rs751141 and Risk of Diabetic Nephropathy in Egyptian Type 2 Diabetic Patients. Appl Clin Genet 2020; 13:165-178. [PMID: 33239900 PMCID: PMC7682612 DOI: 10.2147/tacg.s281502] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Accepted: 10/26/2020] [Indexed: 12/13/2022]
Abstract
Background Diabetic nephropathy (DN), the primary driver of end-stage kidney disease, is a problem with serious consequences for society's health. Single nucleotide polymorphisms (SNPs) can define differences in susceptibility to DN and aid in development of personalized treatment. Giving the importance of epoxyeicosatrienoic acids (EETs) in kidney health, we aimed to study the association between two SNPs in the genes controlling synthesis and degradation of EETs (CYP2J2 rs2280275 and EPHX2 rs751141 respectively) and susceptibility of type 2 diabetes mellitus (T2DM) patients to develop DN. Patients and Methods Two hundred subjects were enrolled and categorized into three groups: group I (80 T2DM patients with DN), group II (60 T2DM patients without DN) and group III (60 healthy controls). Urea, creatinine, albumin/creatinine ratio (ACR), and eGFR were measured for all participants. Genotyping of CYP2J2 rs2280275 and EPHX2 rs751141 was done by real time PCR. Results There was no significant difference between the studied groups regarding CYP2J2 rs2280275. In contrast, EPHX2 rs751141 was associated with increased risk of DN under a dominant model (GG vs GA+AA: OR=0.375; 95% CI (0.19-0.75), P=0.006) in unadjusted model and after adjustment for age and sex (OR=0.440; 95% CI (0.21-0.92), P=0.029), recessive model (AA vs GG+GA: OR=0.195; 95% CI (0.05-0.74), P=0.017) and additive model (GA vs GG+AA): OR=0.195; 95% CI (0.05-0.74), P=0.017). Conclusion CYP2J2 rs2280275 was not associated with DN predisposition. However, EPHX2 rs751141 could be a genetic marker for development and progression of DN among Egyptian T2DM patients.
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Affiliation(s)
- Mona S Habieb
- Medical Biochemistry & Molecular Biology Department, Faculty of Medicine, Menoufia University, Shebin Elkom City, Egypt
| | - Ashraf A Dawood
- Medical Biochemistry & Molecular Biology Department, Faculty of Medicine, Menoufia University, Shebin Elkom City, Egypt
| | - Mahmoud M Emara
- Internal Medicine Department, Faculty of Medicine, Menoufia University, Shebin Elkom City, Egypt
| | - Mohammad G Elhelbawy
- Clinical Pathology Department, Faculty of Medicine, Menoufia University, Shebin Elkom City, Egypt
| | - Nesreen G Elhelbawy
- Medical Biochemistry & Molecular Biology Department, Faculty of Medicine, Menoufia University, Shebin Elkom City, Egypt
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Zhao G, Wang X, Edwards S, Dai M, Li J, Wu L, Xu R, Han J, Yuan H. NLRX1 knockout aggravates lipopolysaccharide (LPS)-induced heart injury and attenuates the anti-LPS cardioprotective effect of CYP2J2/11,12-EET by enhancing activation of NF-κB and NLRP3 inflammasome. Eur J Pharmacol 2020; 881:173276. [PMID: 32574674 DOI: 10.1016/j.ejphar.2020.173276] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 06/01/2020] [Accepted: 06/09/2020] [Indexed: 12/15/2022]
Abstract
NLRX1 weakens lipopolysaccharide (LPS)-induced NF-κB activation on immune cells. Cytochrome P450 epoxygenase 2J2 (CYP2J2) attenuates LPS-induced cardiac injury by inhibiting NF-κB activation. However, it is still unclear whether NLRX1 could reduce LPS-induced heart damage and whether it is involved in the anti-LPS cardioprotective effect of CYP2J2. In this study, we found that NLRX1 knockout further exacerbated LPS-induced heart injury and up-regulated the proinflammatory cytokines in serum and heart tissue, and weakened the inhibitory effect of CYP2J2 on the harmful effects caused by LPS. We also found that LPS treatment induced ubiquitination of NLRX1 and promoted its binding to IKKα/β in myocardial tissue, which should theoretically inhibit NF-κB activation. However, LPS eventually leads to activation of NF-κB and NLRP3 inflammasome. Under the action of LPS, CYP2J2 further promoted the ubiquitination of NLRX1 and its binding to IKKα/β, impaired NF-κB activation and NLRP3 inflammasome activation. NLRX1 knockout notably aggravated LPS-induced NF-κB activation and NLRP3 inflammasome activation, and attenuated the inhibitory effects of CYP2J2 on NF-κB signal and NLRP3 inflammasome. More, CYP2J2 reduced LPS-induced reactive oxygen species (ROS) production and mitochondrial depolarization in heart cells, thereby inhibiting NLRP3 inflammasome activation. NLRX1 knockdown aggravated mitochondrial depolarization induced by LPS and weakened the protective effect of CYP2J2 on mitochondrial potential, although it had no significant effect on reactive oxygen species production. Together, these findings demonstrated that NLRX1 knockout aggravated LPS-induced heart injury and weakened the anti-LPS cardioprotective effect of CYP2J2 by enhancing activation of NF-κB and NLRP3 inflammasome.
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Affiliation(s)
- Gang Zhao
- Department of Cardiology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, 250021, PR China; Key Laboratory for Rare Disease Research of Shandong Province, Shandong Medical Biotechnological Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, 250021, PR China.
| | - Xiaoting Wang
- Department of Otolaryngology, Head and Neck Surgery & Sleep Medicine Center, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, 250021, PR China
| | - Sabrina Edwards
- Oregon Institute of Occupational Health Science, Oregon Health & Science University, 3181 SW Sam Jackson Park Rd, Portland, OR, 97239, USA
| | - Meiyan Dai
- Department of Internal Medicine and Institute of Hypertension, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, PR China
| | - Jianfeng Li
- Department of Otolaryngology, Head and Neck Surgery & Sleep Medicine Center, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, 250021, PR China
| | - Lujin Wu
- Department of Internal Medicine and Institute of Hypertension, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, PR China
| | - Rong Xu
- Department of Cardiology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, 250021, PR China
| | - Jinxiang Han
- Key Laboratory for Rare Disease Research of Shandong Province, Shandong Medical Biotechnological Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, 250021, PR China
| | - Haitao Yuan
- Department of Cardiology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, 250021, PR China.
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Aliwarga T, Guo X, Evangelista EA, Lemaitre RN, Sotoodehnia N, Gharib SA, Zeldin DC, Liu Q, Totah RA. Higher Epoxyeicosatrienoic Acids in Cardiomyocytes-Specific CYP2J2 Transgenic Mice Are Associated with Improved Myocardial Remodeling. Biomedicines 2020; 8:E144. [PMID: 32486275 DOI: 10.3390/biomedicines8060144] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 05/27/2020] [Accepted: 05/27/2020] [Indexed: 02/02/2023] Open
Abstract
Elevated cis-epoxyeicosatrienoic acids (EETs) are known to be cardioprotective during ischemia-reperfusion injury in cardiomyocyte-specific overexpressing cytochrome P450 2J2 (CYP2J2) transgenic (Tr) mice. Using the same Tr mice, we measured changes in cardiac and erythrocyte membranes EETs following myocardial infarction (MI) to determine if they can serve as reporters for cardiac events. Cardiac function was also assessed in Tr vs. wild-type (WT) mice in correlation with EET changes two weeks following MI. Tr mice (N = 25, 16 female, nine male) had significantly higher cardiac cis- and trans-EETs compared to their WT counterparts (N = 25, 18 female, seven male). Total cardiac cis-EETs in Tr mice were positively correlated with total cis-EETs in erythrocyte membrane, but there was no correlation with trans-EETs or in WT mice. Following MI, cis- and trans-EETs were elevated in the erythrocyte membrane and cardiac tissue in Tr mice, accounting for the improved cardiac outcomes observed. Tr mice showed significantly better myocardial remodeling following MI, evidenced by higher % fractional shortening, smaller infarct size, lower reactive oxygen species (ROS) formation, reduced fibrosis and apoptosis, and lower pulmonary edema. A positive correlation between total cardiac cis-EETs and total erythrocyte membrane cis-EETs in a Tr mouse model suggests that erythrocyte cis-EETs may be used as predictive markers for cardiac events. All cis-EET regioisomers displayed similar trends following acute MI; however, the magnitude of change for each regioisomer was markedly different, warranting measurement of each individually.
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Lu H, Yang Y, Chen X, Wu C, Zhao J, Feng Q, Zhou X, Xu D, Li Q, Niu H, He P, Liu J, Yao H, Ding Y. Influence of the CYP2J2 Gene Polymorphisms on Chronic Obstructive Pulmonary Disease Risk in the Chinese Han Population. Arch Bronconeumol 2020; 56:697-703. [PMID: 32224017 DOI: 10.1016/j.arbres.2019.11.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 11/28/2019] [Accepted: 11/30/2019] [Indexed: 10/24/2022]
Abstract
INTRODUCTION Cytochrome P450 (CYP) 2J2 is a major enzyme that controls epoxyeicosatrienoic acids biosynthesis, which may play a role in chronic obstructive pulmonary disease (COPD) development. In this study, we aimed to assess the influence of CYP2J2 polymorphisms with COPD susceptibility. MATERIAL AND METHODS A case-control study enrolled 313 COPD cases and 508 controls was to investigate the association between CYP2J2 polymorphisms and COPD risk. Agena MassARRAY platform was used to genotype CYP2J2 polymorphisms. Odds ratios (OR) and 95% confidence intervals (CI) were calculated to evaluate the association between CYP2J2 polymorphisms and COPD risk. RESULTS We observed rs11207535 (homozygote: OR=0.08, 95%CI=0.01-0.96, p=0.047; recessive: OR=0.08, 95%CI=0.01-0.94, p=0.044), rs10889159 (homozygote: OR=0.08, 95%CI=0.01-0.92, p=0.043; recessive: OR=0.08, 95%CI=0.01-0.90, p=0.040) and rs1155002 (heterozygote: OR=1.63, 95%CI=1.13-2.36, p=0.009; dominant: OR=1.64, 95%CI=1.15-2.35, p=0.006; additive: OR=1.45, 95%CI=1.09-1.92, p=0.011) were significantly associated with COPD risk. Allelic tests showed T allele of rs2280274 was related to a decreased risk of COPD and T allele of rs1155002 was associated with an increased COPD risk. Stratified analyses indicated the effects of CYP2J2 polymorphisms and COPD risk were dependent on gender and smoking status (p<0.05). Additionally, two haplotypes (Ars11207535Crs10889159Trs1155002 and Ars11207535Crs10889159Crs1155002) significantly decreased COPD risk. CONCLUSION It suggested CYP2J2 polymorphisms were associated with COPD susceptibility in the Chinese Han population.
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Affiliation(s)
- Hui Lu
- Hainan Provincial Key Laboratory for Human Reproductive Medicine and Genetic Research, The First Affiliated Hospital of Hainan Medical University, Hainan Medical University, Haikou 570102, Hainan, China
| | - Yixiu Yang
- Department of General Practice, Hainan General Hospital, Haikou 570311, Hainan, China
| | - Xianghong Chen
- Department of General Practice, The Second Affiliated Hospital of Hainan Medical University, Haikou 570311, Hainan, China
| | - Cibing Wu
- Hainan General Hospital, University of South China, Haikou 570311, Hainan, China
| | - Jie Zhao
- Hainan General Hospital, University of South China, Haikou 570311, Hainan, China
| | - Qiong Feng
- Hainan General Hospital, University of South China, Haikou 570311, Hainan, China
| | - Xiaoli Zhou
- Department of General Practice, Hainan General Hospital, Haikou 570311, Hainan, China
| | - Dongchuan Xu
- Department of Emergency, Hainan General Hospital, Haikou 570311, Hainan, China
| | - Quanni Li
- Department of General Practice, Hainan General Hospital, Haikou 570311, Hainan, China
| | - Huan Niu
- Department of Emergency, Hainan General Hospital, Haikou 570311, Hainan, China
| | - Ping He
- Department of Emergency, Hainan General Hospital, Haikou 570311, Hainan, China
| | - Jianfang Liu
- Hainan General Hospital, University of South China, Haikou 570311, Hainan, China
| | - Hongxia Yao
- Department of General Practice, Hainan General Hospital, Haikou 570311, Hainan, China
| | - Yipeng Ding
- Department of General Practice, Hainan General Hospital, Haikou 570311, Hainan, China.
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Zhu Y, Ding A, Yang D, Cui T, Yang H, Zhang H, Wang C. CYP2J2-produced epoxyeicosatrienoic acids attenuate ischemia/reperfusion-induced acute kidney injury by activating the SIRT1-FoxO3a pathway. Life Sci 2020; 246:117327. [PMID: 31954161 DOI: 10.1016/j.lfs.2020.117327] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 01/09/2020] [Accepted: 01/13/2020] [Indexed: 02/06/2023]
Abstract
Cytochrome P450 (CYP) epoxygenases can metabolize arachidonic acids to epoxyeicosatrienoic acids (EETs), which play a protective role in the renal system, but their involvement in ischemia/reperfusion (I/R)-induced acute kidney injury remains unknown. Here, using a rat model, we demonstrated that forced CYP2J2 expression attenuated I/R-induced renal dysfunction and protected histological integrity. We showed that CYP2J2 significantly decreased I/R-induced upregulation of blood urea nitrogen and serum creatinine and enhanced autophagy during I/R treatment. In addition, we determined the protective effect of CYP2J2 against I/R-caused apoptosis. We demonstrated that CYP2J2 overexpression attenuated the downregulation of SIRT1 and FoxO3a by I/R-induced injury. Moreover, exogenous 11,12-EET addition obviously promoted I/R-induced autophagic flux and suppressed I/R-induced apoptosis through SIRT1-FoxO3a signaling activation. Our data indicate that CYP2J2-produced EETs improve I/R-caused kidney injury by activating the SIRT1-FoxO3a signaling pathway, which protects from renal I/R injury.
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Affiliation(s)
- Ye Zhu
- Department of Nephrology, the Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, Guangdong, China.
| | - Ao Ding
- Department of Nephrology, the Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, Guangdong, China
| | | | - Tongxia Cui
- Department of Nephrology, the Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, Guangdong, China
| | - Hui Yang
- Department of Rheumatology, the Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, Guangdong, China
| | - Hua Zhang
- Department of Rheumatology, the Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, Guangdong, China
| | - Cheng Wang
- Department of Nephrology, the Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, Guangdong, China.
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Abelak KK, Bishop-Bailey D, Nobeli I. Molecular dynamics simulations of the interaction of wild type and mutant human CYP2J2 with polyunsaturated fatty acids. BMC Res Notes 2019; 12:760. [PMID: 31753010 PMCID: PMC6873649 DOI: 10.1186/s13104-019-4797-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Accepted: 11/11/2019] [Indexed: 01/20/2023] Open
Abstract
OBJECTIVES The data presented here is part of a study that was aimed at characterizing the molecular mechanisms of polyunsaturated fatty acid metabolism by CYP2J2, the main cytochrome P450 enzyme active in the human cardiovasculature. This part comprises the molecular dynamics simulations of the binding of three eicosanoid substrates to wild type and mutant forms of the enzyme. These simulations were carried out with the aim of dissecting the importance of individual residues in the active site and the roles they might play in dictating the binding and catalytic specificity exhibited by CYP2J2. DATA DESCRIPTION The data comprise: (a) a new homology model of CYP2J2, (b) a number of predicted low-energy complexes of CYP2J2 with arachidonic acid, docosahexaenoic acid and eicosapentaenoic acid, produced with molecular docking and (c) a series of molecular dynamics simulations of the wild type and four mutants interacting with arachidonic acid as well as simulations of the wild type interacting with the two other eicosanoid ligands. The simulations may be helpful in identifying the determinants of substrate specificity of this enzyme and in unraveling the role of individual mutations on its function. They may also help guide the generation of mutants with altered substrate preferences.
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Affiliation(s)
- K. K. Abelak
- Comparative Biomedical Sciences, Royal Veterinary College, Royal College Street, London, NW1 0TU UK
| | - D. Bishop-Bailey
- Comparative Biomedical Sciences, Royal Veterinary College, Royal College Street, London, NW1 0TU UK
| | - I. Nobeli
- Department of Biological Sciences, Institute of Structural and Molecular Biology, Birkbeck, Malet Street, London, WC1E 7HX UK
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Yu X, Wang S, Wang J, Gong J, Shi J, Yu S. Berberine Induces CYP2J2 Expression in Human U251 Glioma Cells via Regulation of Peroxisome Proliferator-Activated Receptor Alpha. Pharmacology 2019; 105:360-368. [PMID: 31671426 DOI: 10.1159/000503884] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Accepted: 10/03/2019] [Indexed: 11/19/2022]
Abstract
BACKGROUND Berberine is a promising natural drug that has a potential therapeutic effect on neurodegenerative diseases. OBJECTIVES Using U251 cells in vitro, we investigated whether berberine exerts its neuroprotective effect via regulation of CYP2J2. METHOD After pretreatment with increasing concentrations (1, 3, and 10 μmol/L) of berberine for 0.5 h, U251 cells were stimulated with 1 μg/mL of lipopolysaccharide (LPS). Cell viability was measured 24 h later using a CCK8 kit. mRNA and protein levels of CYP2J2 and peroxisome proliferator-activated receptor alpha (PPARα) were measured by quantitative real-time-polymerase chain reaction and western blotting, respectively, after 24 h of exposure to 1, 3, or 10 μmol/L berberine. Fluorescence immunocytochemistry was also used to evaluate PPARα protein expression after treatment of U251 cells with 10-μmol/L berberine for 24 h. Transient transfection (cotransfection with the plasmid of PPARα- and RXRα-containing) followed by luciferase and chromatin immunoprecipitation assays was used to elucidate the molecular mechanism underlying the observed effects. RESULTS Compared to the control, LPS-induced U251 cell death was attenuated by berberine in a dose-dependent manner. After 24 h, cell viability was found to be 52.3% (p < 0.05), 66.2% (p < 0.01), and 70.9% (p < 0.001) using 1, 3, and 10 μmol/L berberine treatment, respectively. At these concentrations, berberine increased the CYP2J2 mRNA levels by 1.31-fold (p < 0.05), 1.48-fold (p < 0.01), and 1.88-fold (p < 0.01), respectively, and increased the PPARα mRNA levels 1.17-fold (p < 0.05), 1.29-fold (p < 0.05), and 1.53-fold (p < 0.01), respectively, compared with the respective control groups. In addition, the CYP2J2 and PPARα protein level was also significantly upregulated in U251 cells by berberine (concentrations in 1, 3, and 10 μmol/L) in a dose-dependent manner, compared with the respective control groups. Further investigation indicated that berberine enhances the heterodimerization of PPARα and RXRα, which together bind to the CYP2J2 promoter to induce the expression of CYP2J2 in U251 cells. CONCLUSION Upon exposure of U251 cells to berberine, CYP2J2 expression is induced as a result of PPARα stimulation, resulting in a neuroprotective effect.
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Affiliation(s)
- Xuming Yu
- Department of Pharmacy, Renmin Hospital, Hubei University of Medicine, Shiyan, China
| | - Shanshan Wang
- Department of Pharmacy, Renmin Hospital, Hubei University of Medicine, Shiyan, China
| | - Jia Wang
- Department of Pharmacy, Renmin Hospital, Hubei University of Medicine, Shiyan, China
| | - Jie Gong
- Department of Pharmacy, Renmin Hospital, Hubei University of Medicine, Shiyan, China
| | - Jinmin Shi
- Department of Pharmacy, Renmin Hospital, Hubei University of Medicine, Shiyan, China
| | - Shirong Yu
- Department of Pharmacy, Renmin Hospital, Hubei University of Medicine, Shiyan, China,
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Ahmed JH, Makonnen E, Yimer G, Seifu D, Bekele A, Assefa M, Aseffa A, Howe R, Fotoohi A, Hassan M, Aklillu E. CYP2J2∗7 Genotype Predicts Risk of Chemotherapy-Induced Hematologic Toxicity and Reduced Relative Dose Intensity in Ethiopian Breast Cancer Patients. Front Pharmacol 2019; 10:481. [PMID: 31139078 PMCID: PMC6527746 DOI: 10.3389/fphar.2019.00481] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Accepted: 04/16/2019] [Indexed: 11/13/2022] Open
Abstract
Chemotherapy-induced hematologic toxicity is the primary reasons of dose reductions and/or delays, low relative dose intensity (RDI), and predicts anticancer response. We investigated the incidence and predictors of chemotherapy-induced hematologic toxicities and reduced RDI in Ethiopian breast cancer patients, and implication of pharmacogenetics variations. Breast cancer patients (n = 249) were enrolled prospectively to receive cyclophosphamide based chemotherapy. Hematological toxicity (neutropenia, anemia, and thrombocytopenia) were monitored throughout chemotherapy cycle. The primary and secondary outcomes were incidence of grade 3 or 4 toxicity and reduced RDI, respectively. CYP2B6∗6, CYP3A5∗3, CYP2C9 (∗2,∗3), CYP2C19 (∗2,∗3), CYP2J2∗7, POR∗28, and ABCB1 (rs3842) genotyping were done. Cox proportional hazard and logistic regression were used to estimate risk predictors of toxicity and reduced RDI, respectively. Majority (73.5%) of the patients were < 45 years of age. The incidence of grade 3 or 4 hematological toxicity was 51.0% (95% CI = 44.54–57.46%). Multivariate Cox proportional hazard regression indicated CYP2J2∗7 genotype [Hazard ratio (HR) = 1.82; 95% CI = 1.14–2.90], pretreatment grade 1 leukopenia (HR = 2.75; 95% CI = 1.47–5.15) or grade 1 or 2 neutropenia (HR = 2.75; 95% CI = 1.73–4.35) as significant predictors of hematologic toxicities. The odds of having hematologic toxicities was lower in CYP2C9∗2 or ∗3 carriers (p = 0.024). The prevalence of reduced RDI was 56.6% (95% CI = 50.3–62.9%). Higher risk of reduced RDI was associated with CYP2J2∗7 allele [Adjusted odds ratio (AOR) = 2.79; 95% CI = 1.21–6.46], BMI ≤ 18.4 kg/m2 (AOR = 5.98; 95% CI = 1.36–26.23), baseline grade 1 leukopenia (AOR = 6.09; 95% CI = 1.24–29.98), and baseline neutropenia (AOR = 3.37; 95% CI = 1.41–8.05). The odds of receiving reduced RDI was lower in patients with CYP2B6 ∗6/∗6 genotype (AOR = 0.19; 95% CI = 0.06–0.77). We report high incidence of chemotherapy-induced hematological toxicities causing larger proportion of patients to receive reduced RDI in Ethiopian breast cancer patients. Patients carrying CYP2J2∗7 allele and low baseline blood counts are at a higher risk for chemotherapy-induced hematologic toxicities and receiving reduced RDI, and may require prior support and close follow up during chemotherapy.
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Affiliation(s)
- Jemal Hussien Ahmed
- Department of Pharmacology, Addis Ababa University, Addis Ababa, Ethiopia.,Department of Pharmacy, Jimma University, Jimma, Ethiopia.,Division of Clinical Pharmacology, Department of Laboratory of Medicine, Karolinska Institutet Huddinge, Stockholm, Sweden
| | - Eyasu Makonnen
- Department of Pharmacology, Addis Ababa University, Addis Ababa, Ethiopia.,Center for Inovative Drug Development and Therapeutic Trials, Addis Ababa University, Addis Ababa, Ethiopia
| | - Getnet Yimer
- Department of Pharmacology, Addis Ababa University, Addis Ababa, Ethiopia
| | - Daniel Seifu
- Department of Biochemistry, Addis Ababa University, Addis Ababa, Ethiopia
| | - Abebe Bekele
- Department of Surgery, Addis Ababa University, Addis Ababa, Ethiopia
| | - Mathewos Assefa
- Department of Oncology, Addis Ababa University, Addis Ababa, Ethiopia
| | - Abraham Aseffa
- Armauer Hansen Research Institute, Addis Ababa, Ethiopia
| | - Rawleigh Howe
- Armauer Hansen Research Institute, Addis Ababa, Ethiopia
| | - Alan Fotoohi
- Clinical Pharmacology Unit, Department of Medicine, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Moustapha Hassan
- Department of Laboratory Medicine, Experimental Cancer Medicine, Clinical Research Centre, Karolinska Institutet, Stockholm, Sweden
| | - Eleni Aklillu
- Division of Clinical Pharmacology, Department of Laboratory of Medicine, Karolinska Institutet Huddinge, Stockholm, Sweden
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31
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Liu W, Sui D, Ye H, Ouyang Z, Wei Y. CYP2C11 played a significant role in down-regulating rat blood pressure under the challenge of a high-salt diet. PeerJ 2019; 7:e6807. [PMID: 31065462 PMCID: PMC6485204 DOI: 10.7717/peerj.6807] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2018] [Accepted: 03/18/2019] [Indexed: 01/13/2023] Open
Abstract
Background Arachidonic acid (AA) is oxidized by cytochrome P450s (CYPs) to form epoxyeicosatrienoic acids (EETs), compounds that modulate ion transport, gene expression, and vasorelaxation. Both CYP2Cs and CYP2Js are involved in kidney EET epoxidation. Methods In this study, we used a CYP2C11-null rat model to explore the in vivo effects of CYP2C11 on vasorelaxation. For 2 months, CYP2C11-null and wild-type (WT) Sprague-Dawley rats were either fed normal lab (0.3% (w/w) sodium chloride) or high-salt (8% (w/w) sodium chloride) diets. Subsequently, an invasive method was used to determine blood pressure. Next, western blots, quantitative PCR, and immunohistochemistry were used to determine renal expression of CYPs involved in AA metabolism. Results Among CYP2C11-null rats, a high-salt diet (females: 156.79 ± 15.89 mm Hg, males: 130.25 ± 16.76 mm Hg, n = 10) resulted in significantly higher blood pressure than a normal diet (females: 118.05 ± 8.43 mm Hg, P < 0.01; males: 115.15 ± 11.45 mm Hg, P < 0.05, n = 10). Compared with WT rats under the high-salt diet, western blots showed that CYP2C11-null rats had higher renal expression of CYP2J2 and CYP4A. This was consistent with the results of immunohistochemistry and the qPCR, respectively. The two rat strains did not differ in the renal expression of CYP2C23 or CYP2C24. Conclusion Our findings suggested that CYP2C11 plays an important role in lowering blood pressure under the challenge of a high-salt diet.
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Affiliation(s)
- Wei Liu
- School of Pharmacy, Jiangsu University, Zhenjiang, China
| | - Danjuan Sui
- School of Pharmacy, Jiangsu University, Zhenjiang, China
| | - Huanying Ye
- School of Pharmacy, Jiangsu University, Zhenjiang, China
| | - Zhen Ouyang
- School of Pharmacy, Jiangsu University, Zhenjiang, China
| | - Yuan Wei
- School of Pharmacy, Jiangsu University, Zhenjiang, China
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32
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Huff HC, Maroutsos D, Das A. Lipid composition and macromolecular crowding effects on CYP2J2-mediated drug metabolism in nanodiscs. Protein Sci 2019; 28:928-940. [PMID: 30861250 DOI: 10.1002/pro.3603] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Accepted: 03/11/2019] [Indexed: 01/13/2023]
Abstract
Lipid composition and macromolecular crowding are key external effectors of protein activity and stability whose role varies between different proteins. Therefore, it is imperative to study their effects on individual protein function. CYP2J2 is a membrane-bound cytochrome P450 in the heart involved in the metabolism of fatty acids and xenobiotics. In order to facilitate this metabolism, cytochrome P450 reductase (CPR), transfers electrons to CYP2J2 from NADPH. Herein, we use nanodiscs to show that lipid composition of the membrane bilayer affects substrate metabolism of the CYP2J2-CPR nanodisc (ND) system. Differential effects on both NADPH oxidation and substrate metabolism by CYP2J2-CPR are dependent on the lipid composition. For instance, sphingomyelin containing nanodiscs produced more secondary substrate metabolites than discs of other lipid compositions, implying a possible conformational change leading to processive metabolism. Furthermore, we demonstrate that macromolecular crowding plays a role in the lipid-solubilized CYP2J2-CPR system by increasing the Km and decreasing the Vmax , and effect that is size-dependent. Crowding also affects the CYP2J2-CPR-ND system by decreasing both the Km and Vmax for Dextran-based macromolecular crowding agents, implying an increase in substrate affinity but a lack of metabolism. Finally, protein denaturation studies show that crowding agents destabilize CYP2J2, while the multidomain protein CPR is stabilized. Overall, these studies are the first report on the role of the surrounding lipid environment and macromolecular crowding in modulating enzymatic function of CYP2J2-CPR membrane protein system.
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Affiliation(s)
- Hannah C Huff
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801
| | - Demetri Maroutsos
- Department of Biochemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801
| | - Aditi Das
- Department of Biochemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801.,Beckman Institute for Advanced Science and Technology, Division of Nutritional Science, Neuroscience Program, and Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801.,Department of Comparative Biosciences, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801
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33
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Polonikov AV, Ponomarenko IV, Bykanova MA, Sirotina SS, Bocharova AV, Vagaytseva KV, Stepanov VA, Azarova IE, Churnosov MI, Solodilova MA. A comprehensive study revealed SNP-SNP interactions and a sex-dependent relationship between polymorphisms of the CYP2J2 gene and hypertension risk. Hypertens Res 2018; 42:257-272. [PMID: 30518987 DOI: 10.1038/s41440-018-0142-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Revised: 06/18/2018] [Accepted: 07/12/2018] [Indexed: 11/09/2022]
Abstract
This study investigated whether common polymorphisms of cytochrome P450 2J2 (CYP2J2), a major enzyme that controls the biosynthesis of vasoactive epoxyeicosatrienoic acids, are collectively involved in the molecular basis of essential hypertension (EH). A total of 2314 unrelated Russian subjects from the Kursk (discovery sample: 913 EH patients and 645 controls) and Belgorod (replication sample: 345 EH patients and 411 controls) regions were recruited for this study. Eight single nucleotide polymorphisms (SNPs), including rs890293, rs11572182, rs10493270, rs1155002, rs2280275, rs7515289, rs11572325, and rs10889162, of CYP2J2 were genotyped using the MassARRAY 4 system and TaqMan-based assays. Significant associations were identified among the SNPs rs890293 (OR = 2.17, 95%CI 1.30-3.65), rs2280275 (OR = 1.59, 95%CI 1.10-2.37) and rs11572325 (OR = 1.89, 95%CI 1.22-2.95) and the risk of EH in females from the Kursk population. Sixteen CYP2J2 genotype combinations only showed significant associations with EH risk only in females. A common haplotype, T-T-G-C-C-C-T-A, increased the risk of EH in females. The bioinformatic analysis enabled identification of the SNPs that possess regulatory potential and/or are located within the binding sites for multiple transcription factors that play roles in the pathways involved in hypertension pathogenesis. Moreover, the polymorphisms rs890293, rs2280275, and rs11572325 were found to be significantly associated with hypertension risk in the Belgorod population. In conclusion, the rs2280275 and rs11572325 SNPs of CYP2J2 may be considered novel genetic markers of hypertension, at least in Russian women. However, sex-specific associations between CYP2J2 gene polymorphisms and hypertension require further investigation to clarify the specific genetic and/or environmental factors that are responsible for the increased disease susceptibility of women compared to that of men.
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Affiliation(s)
- Alexey V Polonikov
- Department of Biology, Medical Genetics and Ecology, Kursk State Medical University, 3 Karl Marx St., Kursk, 305041, Russian Federation. .,Laboratory of Statistical Genetics and Bioinformatics, Research Institute for Genetic and Molecular Epidemiology, Kursk State Medical University, 18 Yamskaya St., Kursk, 305041, Russian Federation.
| | - Irina V Ponomarenko
- Department of Biology, Medical Genetics and Ecology, Kursk State Medical University, 3 Karl Marx St., Kursk, 305041, Russian Federation
| | - Marina A Bykanova
- Laboratory of Genomic Research, Research Institute for Genetic and Molecular Epidemiology, Kursk State Medical University, 18 Yamskaya St., Kursk, 305041, Russian Federation
| | - Svetlana S Sirotina
- Department of Biology, Medical Genetics and Ecology, Kursk State Medical University, 3 Karl Marx St., Kursk, 305041, Russian Federation
| | - Anna V Bocharova
- Evolutionary Genetics Laboratory, Research Institute of Medical Genetics, Tomsk National Medical Research Center, 10 Nabereznaya Ushaiki, Tomsk, 634050, Russian Federation
| | - Kseniya V Vagaytseva
- Evolutionary Genetics Laboratory, Research Institute of Medical Genetics, Tomsk National Medical Research Center, 10 Nabereznaya Ushaiki, Tomsk, 634050, Russian Federation
| | - Vadim A Stepanov
- Evolutionary Genetics Laboratory, Research Institute of Medical Genetics, Tomsk National Medical Research Center, 10 Nabereznaya Ushaiki, Tomsk, 634050, Russian Federation
| | - Iuliia E Azarova
- Laboratory of Biochemical Genetics and Metabolomics, Research Institute for Genetic and Molecular Epidemiology, Kursk State Medical University, 18 Yamskaya St., Kursk, 305041, Russian Federation
| | - Mikhail I Churnosov
- Department of Medical Biological Disciplines, Belgorod State University, 85 Pobeda St., Belgorod, 308015, Russian Federation
| | - Maria A Solodilova
- Department of Biology, Medical Genetics and Ecology, Kursk State Medical University, 3 Karl Marx St., Kursk, 305041, Russian Federation
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Yang S, Hu J, Li Y, Zhao Z. CYP2J2 is the major enzyme in human liver microsomes responsible for hydroxylation of SYL-927, a novel and selective sphingosine 1-phosphate receptor 1 (S1P 1 ) agonist. Biopharm Drug Dispos 2018; 39:431-436. [PMID: 30362120 DOI: 10.1002/bdd.2161] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Revised: 10/10/2018] [Accepted: 10/20/2018] [Indexed: 01/20/2023]
Abstract
SYL-927, a novel and selective S1P1 agonist, is transferred to its active phosphate for the regulation of lymphocyte recirculation. This in vitro metabolism study is to elucidate the P450-mediated oxidation pathway of SYL-927 in human liver microsomes (HLMs). The results demonstrated that the ω-1 hydroxylated metabolite SYL-927-M was formed after incubation of SYL-927 with HLMs. Recombinant human CYP1A1 and CYP2J2 can efficiently catalyse SYL-927-M formation, followed by markedly less substrate conversion with CYP1A2, CYP2C19 and CYP2D6. Inhibition studies with chemical inhibitors and antibodies suggested that arachidonic acid, the substrate of CYP2J2, and CYP2J2-specific antibody effectively inhibited the formation of SYL-927-M in HLMs whereas no significant inhibition was observed with the inhibitors for CYP1A1, CYP1A2, CYP2C9, CYP2C19, CYP2D6, CYP2E1 and CYP3A4, demonstrating that CYP2J2 was primarily responsible for the formation of SYL-927-M.
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Affiliation(s)
- Shu Yang
- Department of Drug Metabolism of Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China.,Department of Pharmacy, Beijing Tiantan Hospital, Capital Medical University, 6 TiantanXili, Dongcheng District, Beijing, China
| | - Jinping Hu
- Department of Drug Metabolism of Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Yan Li
- Department of Drug Metabolism of Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Zhigang Zhao
- Department of Pharmacy, Beijing Tiantan Hospital, Capital Medical University, 6 TiantanXili, Dongcheng District, Beijing, China
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Kamel S, Ibrahim MA, Awad ET, El-Hindi HMA, Abdel-Aziz SA. Molecular cloning and characterization of the novel CYP2J2 in dromedary camels (Camelus dromedarius). Int J Biol Macromol 2018; 120:1770-6. [PMID: 30287372 DOI: 10.1016/j.ijbiomac.2018.09.193] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 09/28/2018] [Accepted: 09/28/2018] [Indexed: 01/05/2023]
Abstract
Although its economic, cultural and biological importance, many genes haven't been depicted, sequenced or analyzed to date for Camelus dromedarius. In the present paper, the full-length c-DNA of a novel CYP2J2 (GenBank accession number MH511989) was cloned from liver, heart, and kidney mRNA by RACE-PCR. The full-length c-DNA of the cloned CYP2J2 was sequenced and analyzed using bioinformatics methods. The full-length c-DNA sequence was 2135 bp with no introns. The open reading frame (ORF) had 1341 nucleotides which coded for a putative protein of 446 amino acids. The deduced protein is located in the endoplasmic reticulum. It has two transmembrane regions. The nucleotides and deduced amino acids sequences of the cloned CYP2J2 were 1400 nucleotides and 47 amino acids shorter than the predicted homolog respectively. This study is the first description of the putative CYP2J2 gene, which opens the way to a new investigation-so far-never accomplished in Camelus dromedarius.
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36
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Shah RR, Stonier PD. Repurposing old drugs in oncology: Opportunities with clinical and regulatory challenges ahead. J Clin Pharm Ther 2018; 44:6-22. [PMID: 30218625 DOI: 10.1111/jcpt.12759] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Revised: 08/08/2018] [Accepted: 08/19/2018] [Indexed: 12/11/2022]
Abstract
WHAT IS KNOWN AND OBJECTIVE In order to expedite the availability of drugs to treat cancers in a cost-effective manner, repurposing of old drugs for oncological indications is gathering momentum. Revolutionary advances in pharmacology and genomics have demonstrated many old drugs to have activity at novel antioncogenic pharmacological targets. We decided to investigate whether prospective studies support the promises of nonclinical and retrospective clinical studies on repurposing three old drugs, namely metformin, valproate and astemizole. METHODS We conducted an extensive literature search through PubMed to gather representative nonclinical and retrospective clinical studies that investigated the potential repurposing of these three drugs for oncological indications. We then searched for prospective studies aimed at confirming the promises of retrospective data. RESULTS AND DISCUSSION While evidence from nonclinical and retrospective clinical studies with these drugs appears highly promising, large scale prospective studies are either lacking or have failed to substantiate this promise. We provide a brief discussion of some of the challenges in repurposing. Principal challenges and obstacles relate to heterogeneity of cancers studied without considering their molecular signatures, trials with small sample size and short duration, failure consider issues of ethnicity of study population and effective antioncogenic doses of the drug studied. WHAT IS NEW AND CONCLUSION Well-designed prospective studies demonstrating efficacy are required for repurposing old drugs for oncology indications, just as they are for new chemical entities for any indication. Early and ongoing interactions with regulatory authorities are invaluable. We outline a tentative framework for a structured approach to repurposing old drugs for novel indications in oncology.
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Affiliation(s)
- Rashmi R Shah
- Pharmaceutical Consultant, Gerrards Cross, Buckinghamshire, UK
| | - Peter D Stonier
- Department of Pharmaceutical Medicine, School of Cancer and Pharmaceutical Sciences, Faculty of Life Sciences and Medicine, King's College, London, UK
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Domínguez-González M, Puigpinós M, Jové M, Naudi A, Portero-Otín M, Pamplona R, Ferrer I. Regional vulnerability to lipoxidative damage and inflammation in normal human brain aging. Exp Gerontol 2018; 111:218-228. [PMID: 30077575 DOI: 10.1016/j.exger.2018.07.023] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2018] [Revised: 06/29/2018] [Accepted: 07/30/2018] [Indexed: 01/08/2023]
Abstract
Oxidative damage and inflammation coexist in healthy human brain aging. The present study analyzes levels of protein adduction by lipid peroxidation (LP) end-products neuroketal (NKT) and malondialdehyde (MDA), as markers of protein oxidative damage, cycloxygenase-2 (COX-2) levels, as a marker of inflammation, and cytochrome P450 2J2 (CYP2J2), responsible of generation of neuroprotective products, in twelve brain regions in normal middle-aged individuals (MA) and old-aged (OA) individuals. In addition, levels of these markers were evaluated as a function of age as a continuous variable and correction for multiple comparisons. Selection of regions was based on their different vulnerability to prevalent neurodegenerative diseases in aging. Our findings show region-dependent LP end-products, COX-2 and CYP2J2 changes in the aging human brain. However, no clear relationship can be established between NKT, MDA, COX-2 and CYP2J2 levels, and regional vulnerability to neurodegeneration in old age.
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Affiliation(s)
- Mayelín Domínguez-González
- Institute of Neuropathology, Bellvitge University Hospital, Biomedical Research Institute of Bellvitge (IDIBELL), Hospitalet de Llobregat, Spain
| | - Meritxell Puigpinós
- Institute of Neuropathology, Bellvitge University Hospital, Biomedical Research Institute of Bellvitge (IDIBELL), Hospitalet de Llobregat, Spain
| | - Mariona Jové
- Department of Experimental Medicine, University of Lleida, Biomedical Research Institute of Lleida, UdL-IRBLLeida, 25198 Lleida, Spain
| | - Alba Naudi
- Department of Experimental Medicine, University of Lleida, Biomedical Research Institute of Lleida, UdL-IRBLLeida, 25198 Lleida, Spain
| | - Manuel Portero-Otín
- Department of Experimental Medicine, University of Lleida, Biomedical Research Institute of Lleida, UdL-IRBLLeida, 25198 Lleida, Spain
| | - Reinald Pamplona
- Department of Experimental Medicine, University of Lleida, Biomedical Research Institute of Lleida, UdL-IRBLLeida, 25198 Lleida, Spain
| | - Isidro Ferrer
- Institute of Neuropathology, Bellvitge University Hospital, Biomedical Research Institute of Bellvitge (IDIBELL), Hospitalet de Llobregat, Spain; Department of Pathology and Experimental Therapeutics, University of Barcelona, Hospitalet de Llobregat, Spain; Biomedical Research Network Center on Neurodegenerative Diseases (CIBERNED), Institute Carlos III, Spanish Ministry of Science and Innovation, Madrid, Spain; Institute of Neurosciences, University of Barcelona, Hospitalet de Llobregat, Spain.
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Lafite P, André F, Graves JP, Zeldin DC, Dansette PM, Mansuy D. Role of Arginine 117 in Substrate Recognition by Human Cytochrome P450 2J2. Int J Mol Sci 2018; 19:ijms19072066. [PMID: 30012976 PMCID: PMC6073854 DOI: 10.3390/ijms19072066] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 07/06/2018] [Accepted: 07/13/2018] [Indexed: 01/10/2023] Open
Abstract
The influence of Arginine 117 of human cytochrome P450 2J2 in the recognition of ebastine and a series of terfenadone derivatives was studied by site-directed mutagenesis. R117K, R117E, and R117L mutants were produced, and the behavior of these mutants in the hydroxylation of ebastine and terfenadone derivatives was compared to that of wild-type CYP2J2. The data clearly showed the importance of the formation of a hydrogen bond between R117 and the keto group of these substrates. The data were interpreted on the basis of 3D homology models of the mutants and of dynamic docking of the substrates in their active site. These modeling studies also suggested the existence of a R117-E222 salt bridge between helices B’ and F that would be important for maintaining the overall folding of CYP2J2.
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Affiliation(s)
- Pierre Lafite
- Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques, CNRS UMR8601, Université Paris Descartes, 75270 Paris CEDEX 06, France.
| | - François André
- Institute for Integrative Biology of the Cell (I2BC), DRF/Joliot/SB2SM, CEA, CNRS, Université Paris-Saclay, F-91198 Gif-sur-Yvette CEDEX, France.
| | - Joan P Graves
- Division of Intramural Research, National Institute of Environmental Health Sciences, Research Triangle Park, Durham, NC 27709, USA.
| | - Darryl C Zeldin
- Division of Intramural Research, National Institute of Environmental Health Sciences, Research Triangle Park, Durham, NC 27709, USA.
| | - Patrick M Dansette
- Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques, CNRS UMR8601, Université Paris Descartes, 75270 Paris CEDEX 06, France.
| | - Daniel Mansuy
- Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques, CNRS UMR8601, Université Paris Descartes, 75270 Paris CEDEX 06, France.
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Aliwarga T, Evangelista EA, Sotoodehnia N, Lemaitre RN, Totah RA. Regulation of CYP2J2 and EET Levels in Cardiac Disease and Diabetes. Int J Mol Sci 2018; 19:E1916. [PMID: 29966295 PMCID: PMC6073148 DOI: 10.3390/ijms19071916] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2018] [Revised: 06/24/2018] [Accepted: 06/25/2018] [Indexed: 12/13/2022] Open
Abstract
Cytochrome P450 2J2 (CYP2J2) is a known arachidonic acid (AA) epoxygenase that mediates the formation of four bioactive regioisomers of cis-epoxyeicosatrienoic acids (EETs). Although its expression in the liver is low, CYP2J2 is mainly observed in extrahepatic tissues, including the small intestine, pancreas, lung, and heart. Changes in CYP2J2 levels or activity by xenobiotics, disease states, or polymorphisms are proposed to lead to various organ dysfunctions. Several studies have investigated the regulation of CYP2J2 and EET formation in various cell lines and have demonstrated that such regulation is tissue-dependent. In addition, studies linking CYP2J2 polymorphisms to the risk of developing cardiovascular disease (CVD) yielded contradictory results. This review will focus on the mechanisms of regulation of CYP2J2 by inducers, inhibitors, and oxidative stress modeling certain disease states in various cell lines and tissues. The implication of CYP2J2 expression, polymorphisms, activity and, as a result, EET levels in the pathophysiology of diabetes and CVD will also be discussed.
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Affiliation(s)
- Theresa Aliwarga
- Department of Medicinal Chemistry, University of Washington, Seattle, WA 98101, USA.
| | - Eric A Evangelista
- Department of Medicinal Chemistry, University of Washington, Seattle, WA 98101, USA.
| | - Nona Sotoodehnia
- Cardiovascular Health Research Unit, University of Washington, Seattle, WA 98195, USA.
- Department of Medicine, University of Washington, Seattle, WA 98195, USA.
- Division of Cardiology, University of Washington, Seattle, WA 98195, USA.
| | - Rozenn N Lemaitre
- Cardiovascular Health Research Unit, University of Washington, Seattle, WA 98195, USA.
| | - Rheem A Totah
- Department of Medicinal Chemistry, University of Washington, Seattle, WA 98101, USA.
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Abstract
Nitric oxide (NO) is an essential signaling molecule in the body, regulating numerous biological processes. Beside its physiological roles, NO affects drug metabolism by modulating the activity and/or expression of cytochrome P450 enzymes. Previously, our lab showed that NO generation caused by inflammatory stimuli results in CYP2B6 degradation via the ubiquitin-proteasome pathway. In the current study, we tested the NO-mediated regulation of CYP2J2 that metabolizes arachidonic acids to bioactive epoxyeicosatrienoic acids, as well as therapeutic drugs such as astemizole and ebastine. To investigate the effects of NO on CYP2J2 expression and activity, Huh7 cells stably transduced with CYP2J2 with a C-terminal V5 tag were treated with dipropylenetriamine-NONOate (DPTA), a NO donor. The level of CYP2J2 proteins were decreased in a time- and concentration-dependent manner, and the activity was also rapidly inhibited. However, mRNA expression was not altered and the protein synthesis inhibitor cycloheximide did not attenuate DPTA-mediated downregulation of CYP2J2. Removal of DPTA from the culture media quickly restored the activity of remaining CYP2J2, and no further CYP2J2 degradation occurred. To determine the mechanism of CYP2J2 down-regulation by NO, cells were treated with DPTA in the presence or absence of protease inhibitors including proteasomal, lysosomal and calpain inhibitors. Remarkably, the down-regulation of CYP2J2 by NO was attenuated by calpeptin, a calpain inhibitor. However, other calpain inhibitors or calcium chelator show no inhibitory effects on the degradation. The proteasome inhibitor bortezomib showed small but significant restoration of CYP2J2 levels although stimulated ubiquitination of CYP2J2 was not detected. In conclusion, these data suggest that NO regulates CYP2J2 posttranslationally and NO-evoked CYP2J2 degradation undergoes ubiquitin-independent proteasomal degradation pathway unlike CYP2B6.
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Affiliation(s)
- Ji Won Park
- Department of Pharmacology, Emory University School of Medicine, 1510 Clifton Road, Atlanta, GA 30322, USA
| | - Choon-Myung Lee
- Department of Pharmacology, Emory University School of Medicine, 1510 Clifton Road, Atlanta, GA 30322, USA
| | - Joan S Cheng
- Department of Pharmacology, Emory University School of Medicine, 1510 Clifton Road, Atlanta, GA 30322, USA
| | - Edward T Morgan
- Department of Pharmacology, Emory University School of Medicine, 1510 Clifton Road, Atlanta, GA 30322, USA.
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Xu MJ, Jiang LF, Wu T, Chu JH, Wei YD, Aa JY, Wang GJ, Hao HP, Ju WZ, Li P. Inhibitory Effects of Danshen components on CYP2C8 and CYP2J2. Chem Biol Interact 2018; 289:15-22. [PMID: 29689254 DOI: 10.1016/j.cbi.2018.04.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Revised: 03/28/2018] [Accepted: 04/10/2018] [Indexed: 01/03/2023]
Abstract
The use of Chinese herbal medicines and natural products has become increasingly popular in both China and Western societies as an alternative medicine for the treatment of diseases or as a health supplement. Danshen, the dried root of Salvia miltiorrhiza (Fam.Labiatae), which is rich in phenolic acids and tanshinones, is a widely used herbal medicine for the treatment of cardio-cerebrovascular diseases. The goal of this study was to examine the inhibitory effects of fifteen components derived from Danshen on CYP2C8 and CYP2J2, which are expressed both in human liver and cardiovascular systems. Recombinant CYP2C8 and CYP2J2 were used, and the mechanism, kinetics, and type of inhibition were determined. Taxol 6-hydroxylation and astemizole O-desmethyastemizole were determined as probe activities for CYP2C8 and CYP2J2, respectively. Metabolites formations were analyzed using liquid chromatography-tandem mass spectrometry (LC-MS/MS). The results demonstrated that salvianolic acid A was a competitive inhibitor of CYP2C8 (Ki = 2.5 μM) and mixed-type inhibitor of CYP2J2 (Ki = 7.44 μM). Salvianolic acid C had moderate noncompetitive and mixed-type inhibitions on CYP2C8 (Ki = 4.82 μM) and CYP2J2 (Ki = 5.75 μM), respectively. Tanshinone IIA was a moderate competitive inhibitor of CYP2C8 (Ki = 1.18 μM). Dihydrotanshinone I had moderate noncompetitive inhibition on CYP2J2 (Ki = 6.59 μM), but mechanism-based inhibition on CYP2C8 (KI = 0.43 μM, kinact = 0.097 min-1). Tanshinone I was a moderate competitive inhibitor of CYP2C8 (Ki = 4.20 μM). These findings suggested that Danshen preparations appear not likely to pose a significant risk of drug interactions mediated by CYP2C8 after oral administration; but their inhibitory effects on intestinal CYP2J2 mediated drug metabolism should not be neglected when they are given orally in combination with other drugs. Additionally, this study provided novel insights into the underling pharmacological mechanisms of Danshen components from the perspective of CYP2C8 and CYP2J2 inhibition.
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Affiliation(s)
- Mei-Juan Xu
- Department of Clinical Pharmacology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, 210029, China; State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, China
| | - Li-Feng Jiang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, China
| | - Ting Wu
- Department of Clinical Pharmacology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, 210029, China
| | - Ji-Hong Chu
- Department of Clinical Pharmacology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, 210029, China
| | - Yi-Dan Wei
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, China
| | - Ji-Ye Aa
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, China
| | - Guang-Ji Wang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, China
| | - Hai-Ping Hao
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, China
| | - Wen-Zheng Ju
- Department of Clinical Pharmacology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, 210029, China.
| | - Ping Li
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, China.
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Yang Y, Dong R, Chen Z, Hu D, Fu M, Tang Y, Wang DW, Xu X, Tu L. Endothelium-specific CYP2J2 overexpression attenuates age-related insulin resistance. Aging Cell 2018; 17. [PMID: 29318723 PMCID: PMC5847864 DOI: 10.1111/acel.12718] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/03/2017] [Indexed: 12/18/2022] Open
Abstract
Ample evidences demonstrate that cytochrome P450 epoxygenase‐derived epoxyeicosatrienoic acids (EETs) exert diverse biological activities, which include potent vasodilatory, anti‐inflammatory, and cardiovascular protective effects. In this study, we investigated the effects of endothelium‐specific CYP2J2 overexpression on age‐related insulin resistance and metabolic dysfunction. Endothelium‐specific targeting of the human CYP epoxygenase, CYP2J2, transgenic mice (Tie2‐CYP2J2‐Tr mice) was utilized. The effects of endothelium‐specific CYP2J2 overexpression on aging‐associated obesity, inflammation, and peripheral insulin resistance were evaluated by assessing metabolic parameters in young (3 months old) and aged (16 months old) adult male Tie2‐CYP2J2‐Tr mice. Decreased insulin sensitivity and attenuated insulin signaling in aged skeletal muscle, adipose tissue, and liver were observed in aged adult male mice, and moreover, these effects were partly inhibited in 16‐month‐old CYP2J2‐Tr mice. In addition, CYP2J2 overexpression‐mediated insulin sensitization in aged mice was associated with the amelioration of inflammatory state. Notably, the aging‐associated increases in fat mass and adipocyte size were only observed in 16‐month‐old wild‐type mice, and CYP2J2 overexpression markedly prevented the increase in fat mass and adipocyte size in aged Tie2‐CYP2J2‐Tr mice, which was associated with increased energy expenditure and decreased lipogenic genes expression. Furthermore, these antiaging phenotypes of Tie2‐CYP2J2‐Tr mice were also associated with increased muscle blood flow, enhanced active‐phase locomotor activity, and improved mitochondrial dysfunction in skeletal muscle. Collectively, our findings indicated that endothelium‐specific CYP2J2 overexpression alleviated age‐related insulin resistance and metabolic dysfunction, which highlighted CYP epoxygenase‐EET system as a potential target for combating aging‐related metabolic disorders.
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Affiliation(s)
- Yan Yang
- Department of Geriatric Medicine; Tongji Hospital; Tongji Medical College; Huazhong University of Science and Technology; Wuhan China
| | - Ruolan Dong
- Department of Geriatric Medicine; Tongji Hospital; Tongji Medical College; Huazhong University of Science and Technology; Wuhan China
| | - Zhihui Chen
- Department of Geriatric Medicine; Tongji Hospital; Tongji Medical College; Huazhong University of Science and Technology; Wuhan China
| | - Danli Hu
- Department of Geriatric Medicine; Tongji Hospital; Tongji Medical College; Huazhong University of Science and Technology; Wuhan China
| | - Menglu Fu
- Department of Geriatric Medicine; Tongji Hospital; Tongji Medical College; Huazhong University of Science and Technology; Wuhan China
| | - Ying Tang
- Department of Geriatric Medicine; Tongji Hospital; Tongji Medical College; Huazhong University of Science and Technology; Wuhan China
| | - Dao Wen Wang
- Hubei Key laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders and Division of Cardiology; Department of Internal Medicine; Tongji Hospital; Tongji Medical College; Huazhong University of Science and Technology; Wuhan China
| | - Xizhen Xu
- Hubei Key laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders and Division of Cardiology; Department of Internal Medicine; Tongji Hospital; Tongji Medical College; Huazhong University of Science and Technology; Wuhan China
| | - Ling Tu
- Department of Geriatric Medicine; Tongji Hospital; Tongji Medical College; Huazhong University of Science and Technology; Wuhan China
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Qiu YE, Qin J, Luo Y, Qin SL, Mu YF, Cun R, Jiang HL, Chen JJ, Yu MH, Zhong M. Increased epoxyeicosatrienoic acids may be part of a protective mechanism in human ulcerative colitis, with increased CYP2J2 and reduced soluble epoxide hydrolase expression. Prostaglandins Other Lipid Mediat. 2018;136:9-14. [PMID: 29580941 DOI: 10.1016/j.prostaglandins.2018.03.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Revised: 02/15/2018] [Accepted: 03/22/2018] [Indexed: 02/07/2023]
Abstract
BACKGROUND Previous preclinical evidence has suggested that the elevation of epoxyeicosatrienoic acids (EETs) derived from the cytochrome P450 (CYP) epoxygenases-dependent metabolism of arachidonic acid has important anti-inflammatory effects. However, the levels of EETs and their synthetic and metabolic enzymes in human ulcerative colitis has not been evaluated. METHOD To evaluate EETs and the expression of relevant CYP isoforms and the metabolizing enzyme, soluble epoxide hydrolase (sEH), tissue biopsies were collected from 16 pairs of ulcerative colitis patients' tissues and matched with adjacent non-inflamed tissues. EETs were extracted from tissue homogenates and analyzed by liquid chromatography coupled with tandem mass spectrometry. RESULTS The concentration of EETs was higher in ulcerative colitis tissues compared with matched adjacent non-inflamed tissues (1.91 ± 0.98 ng/mg vs. 0.96 ± 0.77 ng/mg, mean ± SD, P < 0.01). As shown by immunohistochemistry, sEH was present in the cytoplasm and intestinal mucosa and showed a decline in ulcerative colitis tissues compared with matched adjacent non-inflamed tissues. Western blot analyses showed reduced sEH expression in ulcerative colitis tissues compared with matched adjacent non-inflamed tissues, whereas CYP2J2 increased in ulcerative colitis tissues (P < 0.05). However, there was no statistically significant difference observed in CYP2C8 and CYP2C9 protein expression between them (P > 0.05). CONCLUSION Our data suggest that the increase in EET levels may be part of a protective mechanism in ulcerative colitis. Furthermore, the concentration of EETs could be a key factor for drug therapy for ulcerative colitis.
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Park SH, Lee J, Shon JC, Phuc NM, Jee JG, Liu KH. The inhibitory potential of Broussochalcone A for the human cytochrome P450 2J2 isoform and its anti-cancer effects via FOXO3 activation. Phytomedicine 2018; 42:199-206. [PMID: 29655687 DOI: 10.1016/j.phymed.2018.03.032] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Revised: 02/09/2018] [Accepted: 03/17/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND Broussonetia papyrifera (L.) Ventenat, a traditional medicinal herb, has been applied as a folk medicine to treat various diseases. Broussochalcone A (BCA), a chalcone compound isolated from the cortex of Broussonetia papyrifera (L.) Ventenat, exhibits several biological activities including potent anti-oxidant, antiplatelet, and cytotoxic effects. PURPOSE The purpose of this study is to elucidate the inhibitory effect of BCA against CYP2J2 enzyme which is predominantly expressed in human tumor tissues and carcinoma cell lines. STUDY DESIGN The inhibitory effect of BCA on the activities of CYP2J2-mediated metabolism were investigated using human liver microsomes (HLMs), and its anti-cancer effect against human hepatoma HepG2 cells was also evaluated. METHODS Two representative CYP2J2-specific probe substrates, astemizole and ebastine, were incubated in HLMs with BCA. After incubation, the samples were analyzed using liquid chromatography-tandem mass spectrometry. To investigate the binding model between BCA and CYP2J2, we carried out structure-based docking simulations by using software and scripts written in-house. RESULTS BCA inhibited CYP2J2-mediated astemizole O-demethylation and ebastine hydroxylase activities in a concentration dependent manner with Ki values of 2.3 and 3.7 µM, respectively. It also showed cytotoxic effects against human hepatoma HepG2 cells in a dose-dependent manner with activation of apoptosis related proteins. CONCLUSION Overall, this was the first report of the inhibitory effects of BCA on CYP2J2 in HLMs. The present data suggest that BCA is a potential candidate for further evaluation for its CYP2J2 targeting anti-cancer activities.
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Affiliation(s)
- See-Hyoung Park
- Department of Bio and Chemical Engineering, Hongik University, Sejong 30016, Republic of Korea
| | - Jongsung Lee
- Department of Genetic Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Jong Cheol Shon
- BK21 Plus KNU Multi-Omics based Creative Drug Research Team, College of Pharmacy and Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Nguyen Minh Phuc
- BK21 Plus KNU Multi-Omics based Creative Drug Research Team, College of Pharmacy and Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu 41566, Republic of Korea; Saokim Pharmaceutical Company, Hanoi, Vietnam
| | - Jun Goo Jee
- BK21 Plus KNU Multi-Omics based Creative Drug Research Team, College of Pharmacy and Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu 41566, Republic of Korea.
| | - Kwang-Hyeon Liu
- BK21 Plus KNU Multi-Omics based Creative Drug Research Team, College of Pharmacy and Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu 41566, Republic of Korea.
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Lu J, Liu D, Zhou X, Chen A, Jiang Z, Ye X, Liu M, Wang X. Plant natural product plumbagin presents potent inhibitory effect on human cytochrome P450 2J2 enzyme. Phytomedicine 2018; 39:137-145. [PMID: 29433675 DOI: 10.1016/j.phymed.2017.12.026] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Revised: 10/10/2017] [Accepted: 12/25/2017] [Indexed: 06/08/2023]
Abstract
BACKGROUND Cytochrome P450 2J2 (CYP2J2) is not only highly expressed in many kinds of human tumors, but also promotes tumor cell growth via regulating the metabolism of arachidonic acids. CYP2J2 inhibitors can significantly reduce proliferation, migration and promote apoptosis of tumor cells by inhibiting epoxyeicosatrienoic acids (EETs) biosynthesis. Therefore screening CYP2J2 inhibitors is a significant way for the development of anti-cancer drug. PURPOSE The aim of this study was to identify a new CYP2J2 inhibitor from fifty natural compounds obtained from plants. STUDY DESIGN CYP2J2 inhibitor was screened from a natural compounds library and further the inhibitory manner and mechanism were evaluated. Its cytotoxicity against HepG2 and SMMC-7721 cell lines was also estimated. METHODS The inhibitory effect was evaluated in rat liver microsomes (RLMs), human liver microsomes (HLMs) and recombinant CYP2J2 (rCYP2J2), using astemizole as a probe substrate and inhibitory mechanism was illustrated through molecular docking. The cytotoxicity was detected using SRB. RESULTS In all candidates, plumbagin showed the strongest inhibitory effect on the CYP2J2-mediated astemizole O-demethylation activity. Further study revealed that plumbagin potently inhibited CYP2J2 activity with IC50 value at 3.82 µM, 3.37 µM and 1.17 µM in RLMs, HLMs and rCYP2J2, respectively. Enzyme kinetic studies showed that plumbagin was a mixed-type inhibitor of CYP2J2 in HLMs and rCYP2J2 with Ki value of 1.88 µM and 0.92 µM, respectively. Docking data presented that plumbagin interacted with CYP2J2 mainly through GLU 222 and ALA 223. Moreover, plumbagin showed strongly cytotoxic effects on hepatoma cell lines, such as HepG2 and SMMC-7721, with lower toxicity on rat primary hepatocytes. Plumbagin had no effect on the protein expression of CYP2J2 in HepG2 and SMMC-7721, while down-regulated the mRNA level of anti-apoptosis protein Bcl-2. CONCLUSION This study found out a new CYP2J2 inhibitor plumbagin from fifty natural compounds. Plumbagin presented a potential of anti-cancer pharmacological activity.
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Affiliation(s)
- Jian Lu
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China
| | - Daozhi Liu
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China
| | - Xiaojing Zhou
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China
| | - Ang Chen
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China
| | - Zhenran Jiang
- Department of Computer Science and Technology, East China Normal University, Shanghai, China
| | - Xiyun Ye
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China
| | - Mingyao Liu
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China; Center for Translational Cancer Research, Institute of Biosciences and Technology, and Department of Molecular and Cellular Medicine, Texas A&M University Health Science Center, Houston, Texas, USA
| | - Xin Wang
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China.
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Aliwarga T, Raccor BS, Lemaitre RN, Sotoodehnia N, Gharib SA, Xu L, Totah RA. Enzymatic and free radical formation of cis- and trans- epoxyeicosatrienoic acids in vitro and in vivo. Free Radic Biol Med 2017; 112:131-140. [PMID: 28734877 PMCID: PMC5623104 DOI: 10.1016/j.freeradbiomed.2017.07.015] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2017] [Revised: 07/01/2017] [Accepted: 07/18/2017] [Indexed: 10/19/2022]
Abstract
Epoxyeicosatrienoic acids (EETs) are metabolites of arachidonic acid (AA) oxidation that have important cardioprotective and signaling properties. AA is an ω-6 polyunsaturated fatty acid (PUFA) that is prone to autoxidation. Although hydroperoxides and isoprostanes are major autoxidation products of AA, EETs are also formed from the largely overlooked peroxyl radical addition mechanism. While autoxidation yields both cis- and trans-EETs, cytochrome P450 (CYP) epoxygenases have been shown to exclusively catalyze the formation of all regioisomer cis-EETs, on each of the double bonds. In plasma and red blood cell (RBC) membranes, cis- and trans-EETs have been observed, and both have multiple physiological functions. We developed a sensitive ultra-performance liquid chromatography tandem mass spectrometry (UPLC-MS/MS) assay that separates cis- and trans- isomers of EETs and applied it to determine the relative distribution of cis- vs. trans-EETs in reaction mixtures of AA subjected to free radical oxidation in benzene and liposomes in vitro. We also determined the in vivo distribution of EETs in several tissues, including human and mouse heart, and RBC membranes. We then measured EET levels in heart and RBC of young mice compared to old. Formation of EETs in free radical reactions of AA in benzene and in liposomes exhibited time- and AA concentration-dependent increase and trans-EET levels were higher than cis-EETs under both conditions. In contrast, cis-EET levels were overall higher in biological samples. In general, trans-EETs increased with mouse age more than cis-EETs. We propose a mechanism for the non-enzymatic formation of cis- and trans-EETs involving addition of the peroxyl radical to one of AA's double bonds followed by bond rotation and intramolecular homolytic substitution (SHi). Enzymatic formation of cis-EETs by cytochrome P450 most likely occurs via a one-step concerted mechanism that does not allow bond rotation. The ability to accurately measure circulating EETs resulting from autoxidation or enzymatic reactions in plasma and RBC membranes will allow for future studies investigating how these important signaling lipids correlate with heart disease outcomes.
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Affiliation(s)
- Theresa Aliwarga
- Department of Medicinal Chemistry, University of Washington, Box 357610, Seattle, WA 98195, USA.
| | - Brianne S Raccor
- Department of Pharmaceutical Sciences, Campbell University, PO Box 1090, Buies Creek, NC 27506, USA.
| | - Rozenn N Lemaitre
- Cardiovascular Health Research Unit, Department of Medicine, University of Washington, 1730 Minor Ave, Suite 1360, Seattle, WA 98101, USA.
| | - Nona Sotoodehnia
- Cardiovascular Health Research Unit, Department of Medicine, University of Washington, 1730 Minor Ave, Suite 1360, Seattle, WA 98101, USA; Division of Cardiology, University of Washington, Box 356422, Seattle, WA 98195, USA.
| | - Sina A Gharib
- Computational Medicinal Core, Center for Lung Biology, Division of Pulmonary & Critical Care Medicine, Department of Medicine, University of Washington, S376- 815 Mercer, Box 385052, Seattle, WA, USA.
| | - Libin Xu
- Department of Medicinal Chemistry, University of Washington, Box 357610, Seattle, WA 98195, USA.
| | - Rheem A Totah
- Department of Medicinal Chemistry, University of Washington, Box 357610, Seattle, WA 98195, USA.
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Yao M, Lv D, Huo J, Sun Z. Cerebral Small Vessel Disease is Associated with Genetic Variations in CYP2J. Curr Neurovasc Res 2017; 14:378-384. [PMID: 29046152 DOI: 10.2174/1567202614666171017151128] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Revised: 09/23/2017] [Accepted: 10/03/2017] [Indexed: 11/22/2022]
Abstract
BACKGROUND Cerebral Small Vessel Disease (SVD) can cause cognitive impairment, disability and dementia. While it is still unclear about the pathogenesis of SVD, several risk factors of SVD have been identified, and studies suggested that hypertension may play a critical role in SVD. Furthermore, studies have demonstrated that CYP2J2 isoform, 50 G>T variant, is associated with increasing the risk of ischemic stroke. Thus, we hypothesized that CYP2J2 50 G>T variant is associated with increased risk of cerebral SVD. METHODS Thus, in this case-control study, we evaluated the association of CYP2J2 polymorphisms with the susceptibility to cerebral SVD in a population of Chinese Han adults. RESULTS We found that CYP2J2 50 G>T genotype was significantly higher in SVD patients compared to healthy control group. Furthermore, 50 G>T genotype of CYP2J2 was associated with a significantly higher risk of SVD. Additionally, this polymorphism was significantly associated with WMH volume and a number of impaired cognitive domains in SVD patients. CONCLUSION In conclusion, our study demonstrated that CYP2J2 50 G>T polymorphism is associated with increased risk of cerebral SVD in Han Chinese.
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Affiliation(s)
- Ming Yao
- The First Affiliated Hospital of Anhui Medical University, Hefei 230022, Anhui, China.,The Fourth Affiliated Hospital of Anhui Medical University, Hefei 230032, Anhui, China
| | - Daping Lv
- The Fourth Affiliated Hospital of Anhui Medical University, Hefei 230032, Anhui, China
| | - Jiajia Huo
- The First Affiliated Hospital of Anhui Medical University, Hefei 230022, Anhui, China
| | - Zhongwu Sun
- The First Affiliated Hospital of Anhui Medical University, Hefei 230022, Anhui, China
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48
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Chen J, Wang DF, Fu GD, Ding J, Chen LY, Lv JL, Fang J, Yin X, Guo XG. Meta-analysis of the association of the CYP2J2 G-50T polymorphism with coronary artery disease. Oncotarget 2017; 8:59618-59627. [PMID: 28938665 PMCID: PMC5601761 DOI: 10.18632/oncotarget.19518] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2017] [Accepted: 07/12/2017] [Indexed: 11/25/2022] Open
Abstract
The association of the CYP2J2 G-50T polymorphism with coronary artery disease has been explored, but the results remain controversial. Thus, a meta-analysis was conducted to provide a comprehensive estimate of this association. We selected ten articles encompassing 12 independent case-control studies with 7063 cases and 10,453 controls for this meta-analysis. Overall, we found significant associations between the CYP2J2 G-50T polymorphism and coronary artery disease risk in three genetic models (allele model: odds ratio (OR) = 1.19, 95% confidence interval (CI) = 1.05–1.34; homozygote model: OR = 2.25, 95% CI = 1.27–4.01; recessive model: OR = 2.17, 95% CI = 1.22–3.86). In these three genetic models, a significant association was observed in Caucasians but not in Asians when the data were stratified by ethnicity. However, no significant associations were found between the CYP2J2 polymorphism G-50T and coronary artery disease risk in heterozygote model and dominant model. In conclusion, our meta-analysis suggested that the CYP2J2 G-50T polymorphism was associated with coronary artery disease risk in the allele, homozygote and recessive models in Caucasians.
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Affiliation(s)
- Jian Chen
- Department of Cardiology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Dong-Fei Wang
- Department of Cardiology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Guo-Dong Fu
- Pujiang Branch of the First Affiliated Hospital, School of Medicine, Zhejiang University, Cardiavascular Center of Middle Zhejiang, Jinhua 322200, China
| | - Jie Ding
- Department of Cardiology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Lei-Yang Chen
- Pujiang Branch of the First Affiliated Hospital, School of Medicine, Zhejiang University, Cardiavascular Center of Middle Zhejiang, Jinhua 322200, China
| | - Jia-Lan Lv
- Department of Cardiology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Juan Fang
- Department of Cardiology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Xiang Yin
- Department of Cardiology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Xiao-Gang Guo
- Department of Cardiology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China.,Pujiang Branch of the First Affiliated Hospital, School of Medicine, Zhejiang University, Cardiavascular Center of Middle Zhejiang, Jinhua 322200, China
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49
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Hwang GH, Park SM, Han HJ, Baek KM, Kim JS, Chang W, Lee HJ, Yun SP, Ryu JM, Lee MY. Role of cytochrome P450 2J2 on cell proliferation and resistance to an anticancer agent in hepatocellular carcinoma HepG2 cells. Oncol Lett 2017; 14:5484-5490. [PMID: 29098037 DOI: 10.3892/ol.2017.6846] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Accepted: 03/07/2017] [Indexed: 12/25/2022] Open
Abstract
The present study examined the role of human cytochrome P450 2J2 (CYP2J2) on cell proliferation and resistance to an anticancer agent using stable hepatocellular carcinoma HepG2 cells overexpressing CYP2J2. Overexpression of CYP2J2 significantly increased HepG2 cell proliferation and the expression levels of cell cycle regulatory proteins, including cyclin D1, cyclin E, cyclin-dependent kinase (Cdk)2 and Cdk4. CYP2J2-overexpressing HepG2 cells exhibited high levels of Akt phosphorylation compared with those observed in wild-type HepG2 cells. Although Akt phosphorylation in both cell lines was significantly attenuated by LY294002, a specific phosphoinositide 3-kinase/Akt signaling inhibitor, the levels of Akt phosphorylation following treatment with LY294002 were higher in CYP2J2-overexpressing HepG2 cells than in wild-type HepG2 cells. Cell counting revealed that proliferation was reduced by LY294002 in both cell lines; however, CYP2J2-overexpressing HepG2 cell numbers were higher than those of wild-type HepG2 cells following treatment with LY294002. These results indicated that increased cell proliferation by CYP2J2 overexpression is mediated by increased Akt activity. It was also demonstrated that doxorubicin, an anticancer agent, reduced cell viability, induced a significant increase in the B-cell lymphoma (Bcl)-2 associated X protein (Bax)/Bcl-2 ratio and decreased pro-caspase-3 levels in wild-type HepG2 cells. However, the doxorubicin-induced reduction in cell viability was significantly attenuated by enhanced upregulation of CYP2J2 expression. The increase in the Bax/Bcl-2 ratio and the decrease in pro-caspase-3 levels were also recovered by CYP2J2 overexpression. In conclusion, CYP2J2 serves important roles in cancer cell proliferation and resistance to the anticancer agent doxorubicin in HepG2 cells.
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Affiliation(s)
- Geun Hye Hwang
- College of Pharmacy, Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu 41566, Republic of Korea
| | - So Mi Park
- College of Pharmacy, Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Ho Jae Han
- College of Veterinary Medicine, Seoul National University, Seoul 08826, Republic of Korea
| | - Kyoung Min Baek
- Department of Cardiovascular and Neurological Diseases, College of Oriental Medicine, Daegu Haany University, Daegu 42158, Republic of Korea
| | - Joong Sun Kim
- Research Center, Dongnam Institute of Radiological and Medical Sciences, Busan 46033, Republic of Korea
| | - Woochul Chang
- Department of Biology Education, College of Education, Pusan National University, Busan 46241, Republic of Korea
| | - Ho Jin Lee
- Department of Pharmacology, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Seung Pil Yun
- Neuroregeneration and Stem Cell Programs, Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Jung Min Ryu
- College of Veterinary Medicine, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Min Young Lee
- College of Pharmacy, Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu 41566, Republic of Korea
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50
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Zhang D, Lou J, Zhang X, Zhang L, Wang F, Xu D, Niu N, Wang Y, Wu Y, Cui W. Hyperhomocysteinemia results from and promotes hepatocellular carcinoma via CYP450 metabolism by CYP2J2 DNA methylation. Oncotarget 2017; 8:15377-92. [PMID: 28030819 DOI: 10.18632/oncotarget.14165] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Accepted: 11/24/2016] [Indexed: 12/03/2022] Open
Abstract
Hyperhomocysteinemia (HHcy) can result from liver disease or dysfunction and further alters intracellular lipid metabolism. Cytochrome P450 (CYP) arachidonic acid epoxygenases are expressed in human cancers and promote cancer metastasis. This study explored the interaction of Hcy and CYP450 metabolism in hepatocellular carcinoma (HCC). The levels of 4-epoxyeicosatrienoic acid (EET) isomers and their generative enzyme CYP2J2 level as well as intracellular Hcy level were higher in 42 cases of HCC than in paired non-tumor tissue. Elevated Hcy-decreased DNA methylation on SP1/AP1 binding motifs and enhancement on the CYP2J2 promoter via ERK1/2 signaling was essential for CYP2J2 upregulation and EET metabolism. Increased Hcy level enhanced the neoplastic cellular phenotype, which was reversed by CYP2J2 knockdown in vitro. Furthermore, tumor growth and size as well as patterns of CYP2J2 expression and DNA demethylation were increased with HHcy in mice induced orthotopically by 2% (wt/wt) L-methionine with or without folate deficiency. Moreover, the effect was attenuated by shRNA knockdown of CYP2J2. Thus, HHcy results from but can also promote hepatocarcingenesis via CYP450-EET metabolism by crosstalk of DNA demethylation of CYP2J2 and ERK1/2 signaling.
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