1
|
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; 258:108637. [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] [MESH Headings] [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.
Collapse
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.
| |
Collapse
|
2
|
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; 56:145-163. [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] [MESH Headings] [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.
Collapse
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
| |
Collapse
|
3
|
Tamemoto Y, Shibata Y, Hashimoto N, Sato H, Hisaka A. Involvement of multiple cytochrome P450 isoenzymes in drug interactions between ritonavir and direct oral anticoagulants. Drug Metab Pharmacokinet 2023; 53:100498. [PMID: 37778107 DOI: 10.1016/j.dmpk.2023.100498] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 01/20/2023] [Accepted: 02/14/2023] [Indexed: 02/21/2023]
Abstract
Herein, we aimed to determine the significance of drug interactions (DIs) between ritonavir and direct oral anticoagulants (DOACs) and identify the involved cytochrome P450 (CYP) isoenzymes. Using an in vitro cocktail method with human liver microsomes (HLM), we observed that ritonavir strongly inhibited CYPs in the following order: CYP3A, CYP2C8, CYP2D6, CYP2C9, CYP2C19, CYP2B6, and CYP2J2 (IC50: 0.023-6.79 μM). The degree of CYP2J2 inhibition was inconclusive, given the substantial discrepancy between the HLM and human expression system. Selective inhibition of CYP3A decreased the O-demethylation of apixaban by only 13.4%, and the involvement of multiple CYP isoenzymes was suggested, all of which were inhibited by ritonavir. Multiple CYP isoenzymes contributed also to the metabolism of rivaroxaban. Replacement of the incubation medium with phosphate buffer instead of HEPES enhanced apixaban hydroxylation. On surveying the FDA Adverse Event Reporting System, we detected that the signal of the proportional reporting ratio of "death" and found increase for "hemoglobin decreased" (12.5-fold) and "procedural hemorrhage" (201.9-fold) on administering apixaban with ritonavir; these were far less significant for other CYP3A inhibitors. Overall, these findings suggest that co-administration of ritonavir-boosted drugs with DOACs may induce serious DIs owing to the simultaneous inhibition of multiple CYP isoenzymes.
Collapse
Affiliation(s)
- Yuta Tamemoto
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba-shi, Chiba, 260-8675, Japan.
| | - Yukihiro Shibata
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba-shi, Chiba, 260-8675, Japan; Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1, Tanabe-dori, Mizuho-ku, Nagoya-shi, Aichi, 467-8603, Japan.
| | - Natsumi Hashimoto
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba-shi, Chiba, 260-8675, Japan.
| | - Hiromi Sato
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba-shi, Chiba, 260-8675, Japan.
| | - Akihiro Hisaka
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba-shi, Chiba, 260-8675, Japan.
| |
Collapse
|
4
|
García-Quintanilla L, Almuiña-Varela P, Maroñas O, Gil-Rodriguez A, Rodríguez-Cid MJ, Gil-Martinez M, Abraldes MJ, Gómez-Ulla de Irazazabal F, González-Barcia M, Mondelo-Garcia C, Cruz R, Estany-Gestal A, Fernández-Rodríguez M, Fernández-Ferreiro A. Influence of Genetic Polymorphisms on the Short-Term Response to Ranibizumab in Patients With Neovascular Age-Related Macular Degeneration. Invest Ophthalmol Vis Sci 2023; 64:34. [PMID: 37862026 PMCID: PMC10599160 DOI: 10.1167/iovs.64.13.34] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 09/27/2023] [Indexed: 10/21/2023] Open
Abstract
Purpose To determine whether genetic risk single nucleotide polymorphisms (SNPs) for age-related macular degeneration (AMD) influence short-term response to intravitreal ranibizumab treatment. Methods Forty-four treatment-naive AMD patients were included in a prospective observational study. They underwent three monthly injections of intravitreal ranibizumab for neovascular AMD. After an initial clinical examination (baseline measurement), a follow-up visit was performed to determine treatment response one month after the third injection (treatment evaluation). Patients were evaluated based on ophthalmoscopy, fluorescein angiography, optical coherence tomography (OCT), and OCT angiography. Peripheral venous blood was collected for DNA analysis at baseline visit. Patients were genotyped for single-nucleotide polymorphisms within AMD-relevant genes and classified on good or poor responders based on visual acuity, central retinal thickness, intraretinal fluid, and subretinal fluid. Results One hundred ten AMD-associated SNPs have been analyzed. Six were found to be relevant when associated to ranibizumab treatment response. The genetic variants rs890293 (CYP2J2), rs11200638 (HTRA1), rs405509 (APOE), rs9513070 (FLT1), and rs8135665 (SLC16A8) predisposed patients to a good response, whereas rs3093077 (CRP) was associated with a poor response. FTL1, SLC16A8, and APOE were the SNPs that showed significance (P < 0.05) but did not pass Bonferroni correction. Conclusions This is the first study that links novel polymorphisms in genes such as CRP, SCL16A8, or CYP2J2 to treatment response to ranibizumab therapy. On the other hand, HTRA1, FLT1, and APOE are linked to a good ranibizumab response. These SNPs may be good candidates for short-term treatment response biomarkers in AMD patients. However, further studies will be necessary to confirm our findings.
Collapse
Affiliation(s)
- Laura García-Quintanilla
- Pharmacy Department, University Clinical Hospital of Santiago de Compostela (SERGAS), Santiago de Compostela, Spain
- Clinical Pharmacology Group, Health Research Institute of Santiago de Compostela (IDIS), Santiago de Compostela, Spain
- Pharmacology, Pharmacy and Pharmaceutical Technology Department, Faculty of Pharmacy, University of Santiago de Compostela (USC), Santiago de Compostela, Spain
| | - Pablo Almuiña-Varela
- Clinical Pharmacology Group, Health Research Institute of Santiago de Compostela (IDIS), Santiago de Compostela, Spain
- Ophthalmology Department, University Clinical Hospital of Santiago de Compostela, (SERGAS), Santiago de Compostela, Spain
| | - Olalla Maroñas
- Grupo de Genética, Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), Santiago de Compostela, Galicia, Spain
- Grupo de Medicina Xenómica, Centro de Investigación en Medicina Molecular y Enfermedades Crónicas, Universidade de Santiago de Compostela (USC), Santiago de Compostela, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Raras, Instituto de Salud Carlos III, Madrid, Spain
- Grupo de Medicina Xenómica, Fundación Pública Galega de Medicina Xenómica (FPGMX), Santiago de Compostela, Galicia, Spain
| | - Almudena Gil-Rodriguez
- Grupo de Genética, Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), Santiago de Compostela, Galicia, Spain
- Grupo de Medicina Xenómica, Centro de Investigación en Medicina Molecular y Enfermedades Crónicas, Universidade de Santiago de Compostela (USC), Santiago de Compostela, Spain
| | - María José Rodríguez-Cid
- Ophthalmology Department, University Clinical Hospital of Santiago de Compostela, (SERGAS), Santiago de Compostela, Spain
| | - María Gil-Martinez
- Ophthalmology Department, University Clinical Hospital of Santiago de Compostela, (SERGAS), Santiago de Compostela, Spain
| | - Maximino J. Abraldes
- Ophthalmology Department, University Clinical Hospital of Santiago de Compostela, (SERGAS), Santiago de Compostela, Spain
- Instituto Oftalmológico Gómez-Ulla, Santiago de Compostela, Spain
- Department of Surgery, University of Santiago de Compostela, Santiago de Compostela, Spain
| | | | - Miguel González-Barcia
- Pharmacy Department, University Clinical Hospital of Santiago de Compostela (SERGAS), Santiago de Compostela, Spain
- Clinical Pharmacology Group, Health Research Institute of Santiago de Compostela (IDIS), Santiago de Compostela, Spain
| | - Cristina Mondelo-Garcia
- Pharmacy Department, University Clinical Hospital of Santiago de Compostela (SERGAS), Santiago de Compostela, Spain
- Clinical Pharmacology Group, Health Research Institute of Santiago de Compostela (IDIS), Santiago de Compostela, Spain
| | - Raquel Cruz
- Grupo de Medicina Xenómica, Centro de Investigación en Medicina Molecular y Enfermedades Crónicas, Universidade de Santiago de Compostela (USC), Santiago de Compostela, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Raras, Instituto de Salud Carlos III, Madrid, Spain
| | - Ana Estany-Gestal
- FIDIS-Unidad de Epidemiología e Investigación Clínica, Santiago de Compostela (A Coruña), Spain
| | - Maribel Fernández-Rodríguez
- Ophthalmology Department, University Clinical Hospital of Santiago de Compostela, (SERGAS), Santiago de Compostela, Spain
- Instituto Oftalmológico Gómez-Ulla, Santiago de Compostela, Spain
- Department of Surgery, University of Santiago de Compostela, Santiago de Compostela, Spain
| | - Anxo Fernández-Ferreiro
- Pharmacy Department, University Clinical Hospital of Santiago de Compostela (SERGAS), Santiago de Compostela, Spain
- Clinical Pharmacology Group, Health Research Institute of Santiago de Compostela (IDIS), Santiago de Compostela, Spain
| |
Collapse
|
5
|
Jamwal A, Chand J, Dash A, Bhatt S, Dhiman S, Wazir P, Singh B, Goswami A, Nandi U. Glabridin plays dual action to intensify anti-metastatic potential of paclitaxel via impeding CYP2C8 in liver and CYP2J2/EETs in tumor of an orthotopic mouse model of breast cancer. Chem Biol Interact 2023; 382:110605. [PMID: 37419298 DOI: 10.1016/j.cbi.2023.110605] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 06/05/2023] [Accepted: 06/13/2023] [Indexed: 07/09/2023]
Abstract
In spite of unprecedented advances in modern cancer therapy, there is still a dearth of targeted therapy to circumvent triple-negative breast cancer (TNBC). Paclitaxel is the front-line therapy against TNBC, but the main constraints of its treatment are dose-related adverse effects and emerging chemoresistance. In this context, glabridin (phytoconstituent from Glycyrrhiza glabra) is reported to hit multiple signalling pathways at the in-vitro level, but hardly any information is known at the in-vivo level. We aimed here to elucidate glabridin potential with an underlying mechanism in combination with a low dose of paclitaxel using a highly aggressive mouse mammary carcinoma model. Glabridin potentiated the anti-metastatic efficacy of paclitaxel by substantially curtailing tumor burden and diminishing lung nodule formation. Moreover, glabridin remarkably attenuated epithelial-mesenchymal transition (EMT) traits of hostile cancer cells via up-regulating (E-cadherin & occludin) and down-regulating (Vimentin & Zeb1) vital EMT markers. Besides, glabridin amplified apoptotic induction effect of paclitaxel in tumor tissue by declining or elevating pro-apoptotic (Procaspase-9 or Cleaved Caspase-9 & Bax) and reducing anti-apoptotic (Bcl-2) markers. Additionally, concomitant treatment of glabridin and paclitaxel predominantly lessened CYP2J2 expression with marked lowering of epoxyeicosatrienoic acid (EET)'s levels in tumor tissue to reinforce the anti-tumor impact. Simultaneous administration of glabridin with paclitaxel notably enhanced plasma exposure and delayed clearance of paclitaxel, which was mainly arbitrated by CYP2C8-mediated slowdown of paclitaxel metabolism in the liver. The fact of intense CYP2C8 inhibitory action of glabridin was also ascertained using human liver microsomes. Concisely, glabridin plays a dual role in boosting anti-metastatic activity by augmenting paclitaxel exposure via CYP2C8 inhibition-mediated delaying paclitaxel metabolism and limiting tumorigenesis via CYP2J2 inhibition-mediated restricting EETs level. Considering the safety, reported protective efficacy, and the current study results of boosted anti-metastatic effects, further investigations are warranted as a promising neoadjuvant therapy for crux paclitaxel chemoresistance and cancer recurrence.
Collapse
Affiliation(s)
- Ashiya Jamwal
- Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Jammu-180001, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Jagdish Chand
- Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Jammu-180001, India
| | - Anshurekha Dash
- Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Jammu-180001, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Shipra Bhatt
- Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Jammu-180001, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Sumit Dhiman
- Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Jammu-180001, India
| | - Priya Wazir
- Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Jammu-180001, India
| | - Buddh Singh
- Natural Product and Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Jammu-180001, India
| | - Anindya Goswami
- Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Jammu-180001, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India.
| | - Utpal Nandi
- Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Jammu-180001, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India.
| |
Collapse
|
6
|
Aliwarga T, Dinh JC, Heyward S, Prasad B, Gharib SA, Lemaitre RN, Sotoodehnia N, Totah RA. Cardiac Disease Alters Myocardial Tissue Levels of Epoxyeicosatrienoic Acids and Key Proteins Involved in Their Biosynthesis and Degradation. Int J Mol Sci 2022; 23:ijms232012433. [PMID: 36293289 PMCID: PMC9604309 DOI: 10.3390/ijms232012433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 10/02/2022] [Accepted: 10/11/2022] [Indexed: 11/16/2022] Open
Abstract
CYP2J2 is the main epoxygenase in the heart that is responsible for oxidizing arachidonic acid to cis-epoxyeicosatrienoic acids (EETs). Once formed, EETs can then be hydrolyzed by soluble epoxide hydrolase (sEH, encoded by EPHX2) or re-esterified back to the membrane. EETs have several cardioprotective properties and higher levels are usually associated with better cardiac outcomes/prognosis. This study investigates how cardiovascular disease (CVD) can influence total EET levels by altering protein expression and activity of enzymes involved in their biosynthesis and degradation. Diseased ventricular cardiac tissues were collected from patients receiving Left Ventricular Assist Device (LVAD) or heart transplants and compared to ventricular tissue from controls free of CVD. EETs, and enzymes involved in EETs biosynthesis and degradation, were measured using mass spectrometric assays. Terfenadine hydroxylation was used to probe CYP2J2 activity. Significantly higher cis- and trans-EET levels were observed in control cardiac tissue (n = 17) relative to diseased tissue (n = 24). Control cardiac tissue had higher CYP2J2 protein levels, which resulted in higher rate of terfenadine hydroxylation, compared to diseased cardiac tissues. In addition, levels of both NADPH-Cytochrome P450 oxidoreductase (POR) and sEH proteins were significantly higher in control versus diseased cardiac tissue. Overall, alterations in protein and activity of enzymes involved in the biosynthesis and degradation of EETs provide a mechanistic understanding for decreased EET levels in diseased tissues.
Collapse
Affiliation(s)
- Theresa Aliwarga
- Department of Medicinal Chemistry, University of Washington, Seattle, WA 98195, USA
| | | | | | - Bhagwat Prasad
- Department of Pharmaceutical Sciences, Washington State University, Spokane, WA 99202, USA
| | - Sina A. Gharib
- Computational Medicinal Core, Center for Lung Biology, Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of Washington, Seattle, WA 98104, USA
| | - Rozenn N. Lemaitre
- Cardiovascular Health Research Unit, Department of Medicine, University of Washington, Seattle, WA 98101, USA
| | - Nona Sotoodehnia
- Cardiovascular Health Research Unit, Department of Medicine, University of Washington, Seattle, WA 98101, USA
- Division of Cardiology, University of Washington, Seattle, WA 98101, USA
| | - Rheem A. Totah
- Department of Medicinal Chemistry, University of Washington, Seattle, WA 98195, USA
- Correspondence: ; Tel.: +1-206-543-9481
| |
Collapse
|
7
|
Abstract
Cyclooxygenase and lipoxygenase derived lipid metabolites of polyunsaturated fatty acids (PUFAs), as well as their role in the inflammation, have been studied quite thoroughly. However, cytochrome P450 derived lipid mediators, as well as their participation in the regulation of the inflammation, need deeper understanding. In recent years, it has become known that PUFAs are oxidized by cytochrome P450 epoxygenases to epoxy fatty acids, which act as the extremely powerful lipid mediators involved in resolving inflammation. Recent studies have shown that the anti-inflammatory mechanisms of ω-3 PUFAs are also mediated by their conversion to the endocannabinoid epoxides. Thus, it is clear that a number of therapeutically relevant functions of PUFAs are due to their conversion to PUFA epoxides. However, with the participation of cytochrome P450 epoxygenases, not only PUFA epoxides, but also other metabolites are formed. They are further are converted by epoxide hydrolases into pro-inflammatory dihydroxy fatty acids and anti-inflammatory dihydroxyeicosatrienoic acids. The study of the role of PUFA epoxides in the regulation of the inflammation and pharmacological modeling of the activity of epoxide hydrolases are the promising strategies for the treatment of the inflammatory diseases. This review systematizes the current literature data of the fatty acid epoxides, in particular, the endocannabinoid epoxides. Their role in the regulation of inflammation is discussed.
Collapse
Affiliation(s)
- O Y Kytikova
- Vladivostok Branch of Far Eastern Scientific Center of Physiology and Pathology of Respiration - Institute of Medical Climatology and Rehabilitative Treatment, Vladivostok, Russia
| | - Y K Denisenko
- Vladivostok Branch of Far Eastern Scientific Center of Physiology and Pathology of Respiration - Institute of Medical Climatology and Rehabilitative Treatment, Vladivostok, Russia
| | - T P Novgorodtseva
- Vladivostok Branch of Far Eastern Scientific Center of Physiology and Pathology of Respiration - Institute of Medical Climatology and Rehabilitative Treatment, Vladivostok, Russia
| | - N V Bocharova
- Vladivostok Branch of Far Eastern Scientific Center of Physiology and Pathology of Respiration - Institute of Medical Climatology and Rehabilitative Treatment, Vladivostok, Russia
| | - I S Kovalenko
- Vladivostok Branch of Far Eastern Scientific Center of Physiology and Pathology of Respiration - Institute of Medical Climatology and Rehabilitative Treatment, Vladivostok, Russia
| |
Collapse
|
8
|
Lim HM, Lee J, Yu SH, Nam MJ, Cha HS, Park K, Yang YH, Jang KY, Park SH. Acetylshikonin, A Novel CYP2J2 Inhibitor, Induces Apoptosis in RCC Cells via FOXO3 Activation and ROS Elevation. Oxid Med Cell Longev 2022; 2022:9139338. [PMID: 35308176 PMCID: PMC8926475 DOI: 10.1155/2022/9139338] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 12/02/2021] [Accepted: 02/17/2022] [Indexed: 01/04/2023]
Abstract
Acetylshikonin is a shikonin derivative originated from Lithospermum erythrorhizon roots that exhibits various biological activities, including granulation tissue formation, promotion of inflammatory effects, and inhibition of angiogenesis. The anticancer effect of acetylshikonin was also investigated in several cancer cells; however, the effect against renal cell carcinoma (RCC) have not yet been studied. In this study, we aimed to investigate the anticarcinogenic mechanism of acetylshikonin in A498 and ACHN, human RCC cell lines. MTT (3-(4,5-Dimethylthiazol-2-yl)-2,5-Diphenyltetrazolium Bromide), cell counting, and colony forming assay showed that acetylshikonin induced cytotoxic and antiproliferative effects in a dose- and time-dependent manner. Cell cycle analysis and annexin V/propidium iodide (PI) double staining assay indicated the increase of subG1 phase and apoptotic rates. Also, DNA fragmentation was observed by using the TUNEL and comet assays. The intracellular ROS level in acetylshikonin-treated RCC was evaluated using DCF-DA. The ROS level was increased and cell viability was decreased in a dose- and time-dependent manner, while those were recovered when cotreated with NAC. Western blotting analysis showed that acetylshikonin treatment increased the expression of FOXO3, cleaved PARP, cleaved caspase-3, -6, -7, -8, -9, γH2AX, Bim, Bax, p21, and p27 while decreased the expressions of CYP2J2, peroxiredoxin, and thioredoxin-1, Bcl-2, and Bcl-xL. Simultaneously, nuclear translocation of FOXO3 and p27 was observed in cytoplasmic and nuclear fractionated western blot analysis. Acetylshikonin was formerly identified as a novel inhibitor of CYP2J2 protein in our previous study and it was evaluated that CYP2J2 was downregulated in acetylshikonin-treated RCC. CYP2J2 siRNA transfection augmented that apoptotic effect of acetylshikonin in A498 and ACHN via up-regulation of FOXO3 expression. In conclusion, we showed that the apoptotic potential of acetylshikonin against RCC is mediated via increase of intracellular ROS level, activation of FOXO3, and inhibition of CYP2J2 expressions. This study offers that acetylshikonin may be a considerable alternative therapeutic option for RCC treatment by targeting FOXO3 and CYP2J2.
Collapse
Affiliation(s)
- Heui Min Lim
- Department of Biological Science, Gachon University, Seongnam 13120, Republic of Korea
| | - Jongsung Lee
- Department of Integrative Biotechnology, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Seon Hak Yu
- Department of Bio and Chemical Engineering, Hongik University, Sejong 30016, Republic of Korea
| | - Myeong Jin Nam
- Department of Biological Science, Gachon University, Seongnam 13120, Republic of Korea
| | - Hyo Sun Cha
- Department of Biological Science, Gachon University, Seongnam 13120, Republic of Korea
| | - Kyungmoon Park
- Department of Bio and Chemical Engineering, Hongik University, Sejong 30016, Republic of Korea
| | - Yung-Hun Yang
- Department of Biological Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Kyu Yun Jang
- Department of Pathology, Jeonbuk National University Medical School, Jeonju 54896, Republic of Korea
- Research Institute of Clinical Medicine of Jeonbuk National University, Jeonju 54896, Republic of Korea
- Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju 54896, Republic of Korea
| | - See-Hyoung Park
- Department of Bio and Chemical Engineering, Hongik University, Sejong 30016, Republic of Korea
| |
Collapse
|
9
|
Tao P, Jiang Y, Wang H, Gao G. CYP2J2 -produced epoxyeicosatrienoic acids contribute to the ferroptosis resistance of pancreatic ductal adenocarcinoma in a PPAR γ-dependent manner. Zhong Nan Da Xue Xue Bao Yi Xue Ban 2021; 46:932-941. [PMID: 34707002 PMCID: PMC10930169 DOI: 10.11817/j.issn.1672-7347.2021.210413] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Indexed: 11/03/2022]
Abstract
OBJECTIVES Pancreatic ductal adenocarcinoma (PDAC) is one of the most malignant digestive tract tumors with a poor prognosis and high recurrence rate. Recently, ferroptosis resistance has been found in PDAC. However, the underlying mechanism of ferroptosis resistance has not been fully elucidated. Cytochrome P450 2J2 (CYP2J2) is the main enzyme which mediates arachidonic acid to produce epoxyeicosatrienoic acids (EETs) in human tissues. It has been reported that EETs involve in the development of cancer, while the roles of EETs in PDAC and ferroptosis remain unclear.This study aims to explore the effect of CYP2J2/EETs on ferroptosis of human pancreatic ductal adenocarcinoma cells PANC-1 cells and the underlying mechanisms. METHODS The tumor tissues and para-carcinoma tissues of 9 patients with PDAC were collected and the expression of CYP2J2 was detected with real-time PCR and Western blotting. Enzyme-linked immunosorbent assay (ELISA) was used to detect the level of 8,9-dihydroxyeicosatrienoic acid (8,9-DHET), and the degradation product of 8,9-epoxyeicosa-trienoic acid (8,9-EET). PANC-1 cells were used in this study. The ferroptosis inducer erastin was used to induce ferroptosis. The intracellular long-chain acyl-CoA synthetase 4 (ACSL4) protein level, lactate dehydrogenase (LDH) activity, malondialdehyde (MDA) content, Fe2+ concentration, and cell survival were detected. The 8,9-EET was pretreated to observe its effect on erastin-induced ferroptosis in PANC-1 cells. Lentivirus was used to construct a CYP2J2 knockdown cell line to observe its effect on the ferroptosis of PANC-1 cells induced by erastin. A peroxisome proliferation-activated receptor γ (PPARγ) blocker was used to observe the effect of 8,9-EET on erastin-induced glutathione peroxidase 4 (GPX4) and MDA content in PANC-1 cells. RESULTS High expression of CYP2J2 was found in PDAC, accompanied by an increased level of 8,9-DHET. The 8,9-EET pretreatment significantly attenuated the PANC-1 cell death induced by erastin. The 8,9-EET reduced the Fe2+ concentration, LDH activity and MDA content, and ACSL4 protein expression in erastin-treated PANC-1 cells. The 8,9-EET also restored the ferroportin (FPN) and ferroptosis suppressor protein 1 (FSP1) mRNA expressions in erastin-treated PANC-1 cells. But CYP2J2 knockdown exacerbated the erastin-induced ferroptosis in PANC-1 cells. Besides, CYP2J2 knockdown furtherly down-regulated the gene expression of FPN and FSP1. The 8,9-EET increased the expression of GPX4 in the erastin-treated PANC-1 cells, which was eliminated by a PPARγ blocker GW9662. And GW9662 abolished the anti-ferroptosis effects of 8,9-EET. CONCLUSIONS CYP2J2/EETs are highly expressed in PDAC tissues. EETs inhibit the ferroptosis via up-regulation of GPX4 in a PPARγ-dependent manner, which contributes to the ferroptosis resistance of PDAC.
Collapse
Affiliation(s)
- Pengzuo Tao
- Department of Laboratory Medicine, Third Xiangya Hospital, Central South University, Changsha 410013.
- Department of Laboratory Medicine, Xiangya School of Medicine, Central South University, Changsha 410013.
- Department of Clinical Laboratory, Third Affiliated Hospital of Kunming Medical University, Kunming 650118, China.
| | - Yu'e Jiang
- Department of Clinical Laboratory, Third Affiliated Hospital of Kunming Medical University, Kunming 650118, China
| | - Hai Wang
- Department of Laboratory Medicine, Third Xiangya Hospital, Central South University, Changsha 410013
- Department of Laboratory Medicine, Xiangya School of Medicine, Central South University, Changsha 410013
| | - Ge Gao
- Department of Laboratory Medicine, Third Xiangya Hospital, Central South University, Changsha 410013.
- Department of Laboratory Medicine, Xiangya School of Medicine, Central South University, Changsha 410013.
| |
Collapse
|
10
|
He ZW, Wang B, Chen C, Shi ZQ, Wang DW. [Endogenous protective effects of arachidonic acid epoxygenase metabolites, epoxyeicosatrienoic acids, in cardiovascular system]. Sheng Li Xue Bao 2021; 73:617-630. [PMID: 34405218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The morbidity and mortality of cardiovascular diseases are increasing annually, which is one of the primary causes of human death. Recent studies have shown that epoxyeicosatrienoic acids (EETs), endogenous metabolites of arachidonic acid (AA) via CYP450 epoxygenase, possess a spectrum of protective properties in cardiovascular system. EETs not only alleviate cardiac remodeling and injury in different pathological models, but also improve subsequent hemodynamic disturbances and cardiac dysfunction. Meanwhile, various studies have demonstrated that EETs, as endothelial-derived hyperpolarizing factors, regulate vascular tone by activating various ion channels on endothelium and smooth muscle, which in turn can lower blood pressure, improve coronary blood flow and regulate pulmonary artery pressure. In addition, EETs are protective in endothelium, including inhibiting inflammation and adhesion of endothelial cells, attenuating platelet aggregation, promoting fibrinolysis and revascularization. EETs can also prevent aortic remodeling, including attenuating atherosclerosis, adventitial remodeling, and aortic calcification. Therefore, it is clinically important to study the physiological and pathophysiological effects of EETs in the cardiovascular system to further elucidate the mechanisms, as well as provide new strategy for the prevention and treatment of cardiovascular diseases. This review summarizes the endogenous cardioprotective effects and mechanisms of EETs in order to provide a new insight for research in this field.
Collapse
Affiliation(s)
- Zuo-Wen He
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
- Hubei Key Laboratory of Genetics and Molecular Mechanism of Cardiological Disorders, Wuhan 430030, China
| | - Bei Wang
- Division of Rheumatology and Immunology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Chen Chen
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
- Hubei Key Laboratory of Genetics and Molecular Mechanism of Cardiological Disorders, Wuhan 430030, China
| | - Ze-Qi Shi
- Hubei Key Laboratory of Genetics and Molecular Mechanism of Cardiological Disorders, Wuhan 430030, China
| | - Dao-Wen Wang
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
- Hubei Key Laboratory of Genetics and Molecular Mechanism of Cardiological Disorders, Wuhan 430030, China.
| |
Collapse
|
11
|
Li Y, Liu S, Cheng H, Chen X, Shen X, Cai Y. Dynamic transcriptome response in Meretrix meretrix to Aroclor 1254 exposure. Ecotoxicol Environ Saf 2021; 207:111485. [PMID: 33254386 DOI: 10.1016/j.ecoenv.2020.111485] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 08/26/2020] [Revised: 10/08/2020] [Accepted: 10/09/2020] [Indexed: 06/12/2023]
Abstract
Polychlorinated biphenyls (PCBs) are well-known persistent organic pollutants; they have toxic effects on the immune system, reproductive system, and endocrine system by changing the metabolism of the body. To elucidate the underlying molecular mechanism, the clam Meretrix meretrix was exposed to 10 and 1000 ng/L Aroclor 1254 and natural seawater (control). Samples from clams exposed to natural seawater and those exposed to Aroclor 1254 for 1 and 3 days were individually collected for transcriptome analysis. After assembly, more than 535,157 transcripts with a mean length of 949 bp and an N50 length of 1279 bp were obtained; a final set of 177,142 unigenes was generated. In the present study, 5101 differentially expressed genes were identified. The differentially expressed genes were related to detoxification metabolism, oxidative stress, immune response, and endocrine system disruption. Of these genes, under the Aroclor 1254 exposure, cytochrome P450 20A1 (2.06-4.46 folds), glutathione S-transferase (2.25-3.80 folds), multidrug resistance-associated protein 1-like (1.49-2.92 folds), peroxidase-like protein (1.33-4.26 folds), lysozyme (1.61-2.05 folds), bcl-2 like 1 protein (1.14-2.29 folds) and vitellogenin (1.09-1.19 folds) showed been significantly induced expressed. At the same time, some genes were down regulated, including cytochrome P450 2J5 (-1.20 ~ -2.86 folds), cytochrome P450 3A24 (-1.40 ~ -4.08 folds), C1q (-1.27 ~ -1.66 folds), Sulfotransferase (-1.51 ~ -1.84 folds), monocarboxylate transporter 10 (-1.30 ~ -4.70 folds), 3-beta hydroxysteroid dehydrogenase (-1.43 ~ -2.81 folds) and beta-galactosidase (-1.23 ~ -2.23 folds). Furthermore, it showed that the expression levels of CYP2J5, glutathione S-transferase, 3-beta hydroxysteroid dehydrogenase and beta-galactosidase had time responses and dose responses. The present study provided insights into the toxic effects of Aroclor 1254 exposure in M. meretrix.
Collapse
Affiliation(s)
- Yongqi Li
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, Lianyungang 222005, China; Co-Innovation Center of Jiangsu Marine Bio-Industry Technology, Jiangsu Ocean University, Lianyungang 222005, China
| | - Shishi Liu
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, Lianyungang 222005, China; Co-Innovation Center of Jiangsu Marine Bio-Industry Technology, Jiangsu Ocean University, Lianyungang 222005, China
| | - Hanliang Cheng
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, Lianyungang 222005, China; Co-Innovation Center of Jiangsu Marine Bio-Industry Technology, Jiangsu Ocean University, Lianyungang 222005, China
| | - Xiangning Chen
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, Lianyungang 222005, China; Co-Innovation Center of Jiangsu Marine Bio-Industry Technology, Jiangsu Ocean University, Lianyungang 222005, China
| | - Xin Shen
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, Lianyungang 222005, China; Co-Innovation Center of Jiangsu Marine Bio-Industry Technology, Jiangsu Ocean University, Lianyungang 222005, China.
| | - Yuefeng Cai
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, Lianyungang 222005, China; Co-Innovation Center of Jiangsu Marine Bio-Industry Technology, Jiangsu Ocean University, Lianyungang 222005, China.
| |
Collapse
|
12
|
Das A, Weigle AT, Arnold WR, Kim JS, Carnevale LN, Huff HC. CYP2J2 Molecular Recognition: A New Axis for Therapeutic Design. Pharmacol Ther 2020; 215:107601. [PMID: 32534953 PMCID: PMC7773148 DOI: 10.1016/j.pharmthera.2020.107601] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [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: 04/10/2019] [Accepted: 05/28/2020] [Indexed: 12/11/2022]
Abstract
Cytochrome P450 (CYP) epoxygenases are a special subset of heme-containing CYP enzymes capable of performing the epoxidation of polyunsaturated fatty acids (PUFA) and the metabolism of xenobiotics. This dual functionality positions epoxygenases along a metabolic crossroad. Therefore, structure-function studies are critical for understanding their role in bioactive oxy-lipid synthesis, drug-PUFA interactions, and for designing therapeutics that directly target the epoxygenases. To better exploit CYP epoxygenases as therapeutic targets, there is a need for improved understanding of epoxygenase structure-function. Of the characterized epoxygenases, human CYP2J2 stands out as a potential target because of its role in cardiovascular physiology. In this review, the early research on the discovery and activity of epoxygenases is contextualized to more recent advances in CYP epoxygenase enzymology with respect to PUFA and drug metabolism. Additionally, this review employs CYP2J2 epoxygenase as a model system to highlight both the seminal works and recent advances in epoxygenase enzymology. Herein we cover CYP2J2's interactions with PUFAs and xenobiotics, its tissue-specific physiological roles in diseased states, and its structural features that enable epoxygenase function. Additionally, the enumeration of research on CYP2J2 identifies the future needs for the molecular characterization of CYP2J2 to enable a new axis of therapeutic design.
Collapse
Affiliation(s)
- Aditi Das
- Department of Comparative Biosciences, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA; Department of Biochemistry, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA; Division of Nutritional Sciences, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA; Center for Biophysics and Computational Biology, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA; Department of Bioengineering, Neuroscience Program, Beckman Institute for Advanced Science and Technology, Cancer Center at Illinois, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA.
| | - Austin T Weigle
- Department of Chemistry, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
| | - William R Arnold
- Department of Biochemistry, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
| | - Justin S Kim
- Division of Nutritional Sciences, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
| | - Lauren N Carnevale
- Department of Biochemistry, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
| | - Hannah C Huff
- Department of Chemistry, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
| |
Collapse
|
13
|
Grapov D, Fiehn O, Campbell C, Chandler CJ, Burnett DJ, Souza EC, Casazza GA, Keim NL, Hunter GR, Fernandez JR, Garvey WT, Hoppel CL, Harper M, Newman JW, Adams SH. Impact of a weight loss and fitness intervention on exercise-associated plasma oxylipin patterns in obese, insulin-resistant, sedentary women. Physiol Rep 2020; 8:e14547. [PMID: 32869956 PMCID: PMC7460071 DOI: 10.14814/phy2.14547] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [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: 06/12/2020] [Revised: 07/26/2020] [Accepted: 07/27/2020] [Indexed: 12/18/2022] Open
Abstract
Very little is known about how metabolic health status, insulin resistance or metabolic challenges modulate the endocannabinoid (eCB) or polyunsaturated fatty acid (PUFA)-derived oxylipin (OxL) lipid classes. To address these questions, plasma eCB and OxL concentrations were determined at rest, 10 and 20 min during an acute exercise bout (30 min total, ~45% of preintervention V̇O2peak , ~63 W), and following 20 min recovery in overnight-fasted sedentary, obese, insulin-resistant women under controlled diet conditions. We hypothesized that increased fitness and insulin sensitivity following a ~14-week training and weight loss intervention would lead to significant changes in lipid signatures using an identical acute exercise protocol to preintervention. In the first 10 min of exercise, concentrations of a suite of OxL diols and hydroxyeicosatetraenoic acid (HETE) metabolites dropped significantly. There was no increase in 12,13-DiHOME, previously reported to increase with exercise and proposed to activate muscle fatty acid uptake and tissue metabolism. Following weight loss intervention, exercise-associated reductions were more pronounced for several linoleate and alpha-linolenate metabolites including DiHOMEs, DiHODEs, KODEs, and EpODEs, and fasting concentrations of 9,10-DiHODE, 12,13-DiHODE, and 9,10-DiHOME were reduced. These findings suggest that improved metabolic health modifies soluble epoxide hydrolase, cytochrome P450 epoxygenase (CYP), and lipoxygenase (LOX) systems. Acute exercise led to reductions for most eCB metabolites, with no evidence for concentration increases even at recovery. It is proposed that during submaximal aerobic exercise, nonoxidative fates of long-chain saturated, monounsaturated, and PUFAs are attenuated in tissues that are important contributors to the blood OxL and eCB pools.
Collapse
Affiliation(s)
| | - Oliver Fiehn
- West Coast Metabolomics CenterUniversity of CaliforniaDavisCAUSA
| | - Caitlin Campbell
- United States Department of Agriculture‐Agricultural Research Service Western Human Nutrition Research CenterDavisCAUSA
| | - Carol J. Chandler
- United States Department of Agriculture‐Agricultural Research Service Western Human Nutrition Research CenterDavisCAUSA
| | - Dustin J. Burnett
- United States Department of Agriculture‐Agricultural Research Service Western Human Nutrition Research CenterDavisCAUSA
| | - Elaine C. Souza
- United States Department of Agriculture‐Agricultural Research Service Western Human Nutrition Research CenterDavisCAUSA
| | | | - Nancy L. Keim
- United States Department of Agriculture‐Agricultural Research Service Western Human Nutrition Research CenterDavisCAUSA
- Department of NutritionUniversity of CaliforniaDavisCAUSA
| | - Gary R. Hunter
- Department of Nutrition SciencesUniversity of AlabamaBirminghamALUSA
- Human Studies DepartmentUniversity of AlabamaBirminghamALUSA
| | - Jose R. Fernandez
- Department of Nutrition SciencesUniversity of AlabamaBirminghamALUSA
| | - W. Timothy Garvey
- Department of Nutrition SciencesUniversity of AlabamaBirminghamALUSA
| | - Charles L. Hoppel
- Pharmacology DepartmentCase Western Reserve UniversityClevelandOHUSA
| | - Mary‐Ellen Harper
- Department of Biochemistry, Microbiology and Immunology, and Ottawa Institute of Systems BiologyUniversity of OttawaOttawaONCanada
| | - John W. Newman
- United States Department of Agriculture‐Agricultural Research Service Western Human Nutrition Research CenterDavisCAUSA
- Department of NutritionUniversity of CaliforniaDavisCAUSA
| | - Sean H. Adams
- Arkansas Children’s Nutrition CenterLittle RockARUSA
- Department of PediatricsUniversity of Arkansas for Medical SciencesLittle RockARUSA
| |
Collapse
|
14
|
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.
Collapse
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
| |
Collapse
|
15
|
Abstract
Eukaryotic membrane bound cytochrome P450s are expressed in bacterial systems to produce large yields of catalytically active protein for structure function studies. Recently, there have been several instances of expressing eukaryotic membrane bound CYPs in bacteria after making various modifications to both the N-terminus membrane binding domains of the protein and to noncontiguous F-G membrane binding loop that is also implicated in substrate binding. These modifications have been shown not to disturb the function of the protein of interest. The major factors that have been key to express the membrane bound cytochrome P450s in bacteria have been the following: (a) exon optimization (b) selection of the appropriate vector and host strain, and (c) growth and expression conditions with respect to temperature and speed of shaking the media flask. Herein, we describe methods to express and purify eukaryotic membrane bound cytochrome P450s. We also describe the measurement of the activity of the cytochrome P450 expressed by taking the example of cytochrome P450 2J2, the primary P450 expressed in the human heart and CYP725A4, the primary cytochrome P450 expressed in the first step of taxol synthesis. Additionally, we discuss the pros and cons of the different modifications done in order to express the membrane bound cytochrome P450s.
Collapse
Affiliation(s)
- Demetrios Maroutsos
- Department of Biochemistry, University of Illinois at Urbana Champaign, Urbana, IL, USA
| | - Hannah Huff
- Department of Chemistry, University of Illinois at Urbana-Champaign, Champaign, IL, USA
| | - Aditi Das
- Department of Comparative Biosciences, University of Illinois at Urbana-Champaign, Urbana, IL, USA.
- Department of Biochemistry, University of Illinois at Urbana-Champaign, Urbana, IL, USA.
- Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL, USA.
- Division of Nutritional Science, Neuroscience Program, Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, IL, USA.
| |
Collapse
|
16
|
Wilkens MR, Firmenich CS, Schnepel N, Muscher-Banse AS. A reduced protein diet modulates enzymes of vitamin D and cholesterol metabolism in young ruminants. J Steroid Biochem Mol Biol 2019; 186:196-202. [PMID: 30394334 DOI: 10.1016/j.jsbmb.2018.10.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Revised: 10/16/2018] [Accepted: 10/24/2018] [Indexed: 12/19/2022]
Abstract
Besides other adverse effects, a low protein diet has been shown to modulate cholesterol and vitamin D metabolism in monogastric species like rats and humans. As ruminants can increase the efficiency of the rumino-hepatic circulation of urea, it is assumed that goats should be able to compensate for a low dietary protein intake better. After a dietary protein restriction (9% vs. 20%) for six weeks, plasma concentrations of urea, albumin, 1,25-dihydroxyvitamin D3 and calcium were decreased, while plasma 25-hydroxyvitamin D3 (25-OHD3), and total cholesterol were significantly increased in young goats. Because this was not accompanied by any decrease in expression of CYP24A1 mRNA, we investigated mRNA expression of additional enzymes with known 24- and/or 25-hydroxylase activities (CYP2R1, CYP2J2, CYP3 A24, CYP27A1), receptors involved in their regulation (VDR, PXR, RXRα) and vitamin D binding protein (VDBP). CYP2R1expression was stimulated with the low dietary protein intake, negatively correlated with plasma urea and positively associated with serum 25-OHD3. The greater plasma concentrations of total cholesterol could be explained with the reduction of CYP2J2 and CYP27A1 expression. None of the receptors investigated were affected by the dietary protein restriction but mRNA expression of VDBP was slightly reduced. Taken together our results show that dietary protein restriction has an impact on vitamin D and cholesterol metabolism in ruminants, too. Therefore, further investigations are needed before dietary interventions aiming at diminishing nitrogen excretion can be implemented.
Collapse
Affiliation(s)
- Mirja R Wilkens
- Department of Physiology, University of Veterinary Medicine Hannover, Bischofsholer Damm 15/102, 30173 Hannover, Germany
| | - Caroline S Firmenich
- Department of Physiology, University of Veterinary Medicine Hannover, Bischofsholer Damm 15/102, 30173 Hannover, Germany
| | - Nadine Schnepel
- Department of Physiology, University of Veterinary Medicine Hannover, Bischofsholer Damm 15/102, 30173 Hannover, Germany
| | - Alexandra S Muscher-Banse
- Department of Physiology, University of Veterinary Medicine Hannover, Bischofsholer Damm 15/102, 30173 Hannover, Germany.
| |
Collapse
|
17
|
Mata-Greenwood E, Huber HF, Li C, Nathanielsz PW. Role of pregnancy and obesity on vitamin D status, transport, and metabolism in baboons. Am J Physiol Endocrinol Metab 2019; 316:E63-E72. [PMID: 30398904 PMCID: PMC6417685 DOI: 10.1152/ajpendo.00208.2018] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Revised: 09/25/2018] [Accepted: 10/12/2018] [Indexed: 12/17/2022]
Abstract
Human studies show that obesity is associated with vitamin D insufficiency, which contributes to obesity-related disorders. Our aim was to elucidate the regulation of vitamin D during pregnancy and obesity in a nonhuman primate species. We studied lean and obese nonpregnant and pregnant baboons. Plasma 25-hydroxy vitamin D (25-OH-D) and 1α,25-(OH)2-D metabolites were analyzed using ELISA. Vitamin D-related gene expression was studied in maternal kidney, liver, subcutaneous fat, and placental tissue using real-time PCR and immunoblotting. Pregnancy was associated with an increase in plasma bioactive vitamin D levels compared with nonpregnant baboons in both lean and obese groups. Pregnant baboons had lower renal 24-hydroxylase CYP24A1 protein and chromatin-bound vitamin D receptor (VDR) than nonpregnant baboons. In contrast, pregnancy upregulated the expression of CYP24A1 and VDR in subcutaneous adipose tissue. Obesity decreased vitamin D status in pregnant baboons (162 ± 17 vs. 235 ± 28 nM for 25-OH-D, 671 ± 12 vs. 710 ± 10 pM for 1α,25-(OH)2-D; obese vs. lean pregnant baboons, P < 0.05). Lower vitamin D status correlated with decreased maternal renal expression of the vitamin D transporter cubulin and the 1α-hydroxylase CYP27B1. Maternal obesity also induced placental downregulation of the transporter megalin (LRP2), CYP27B1, the 25-hydroxylase CYP2J2, and VDR. We conclude that baboons represent a novel species to evaluate vitamin D regulation. Both pregnancy and obesity altered vitamin D status. Obesity-induced downregulation of vitamin D transport and bioactivation genes are novel mechanisms of obesity-induced vitamin D regulation.
Collapse
Affiliation(s)
- Eugenia Mata-Greenwood
- Lawrence Longo Center for Perinatal Biology, School of Medicine, Loma Linda University , Loma Linda, California
| | - Hillary F Huber
- Department of Animal Science, University of Wyoming , Laramie Wyoming
| | - Cun Li
- Department of Animal Science, University of Wyoming , Laramie Wyoming
- Southwest National Primate Research Center, Texas Biomedical Research Institute , San Antonio, Texas
| | - Peter W Nathanielsz
- Department of Animal Science, University of Wyoming , Laramie Wyoming
- Southwest National Primate Research Center, Texas Biomedical Research Institute , San Antonio, Texas
| |
Collapse
|
18
|
Abstract
Therapeutics for arachidonic acid pathways began with the development of non-steroidal anti-inflammatory drugs that inhibit cyclooxygenase (COX). The enzymatic pathways and arachidonic acid metabolites and respective receptors have been successfully targeted and therapeutics developed for pain, inflammation, pulmonary and cardiovascular diseases. These drugs target the COX and lipoxygenase pathways but not the third branch for arachidonic acid metabolism, the cytochrome P450 (CYP) pathway. Small molecule compounds targeting enzymes and CYP epoxy-fatty acid metabolites have evolved rapidly over the last two decades. These therapeutics have primarily focused on inhibiting soluble epoxide hydrolase (sEH) or agonist mimetics for epoxyeicosatrienoic acids (EET). Based on preclinical animal model studies and human studies, major therapeutic indications for these sEH inhibitors and EET mimics/analogs are renal and cardiovascular diseases. Novel small molecules that inhibit sEH have advanced to human clinical trials and demonstrate promise for cardiovascular diseases. Challenges remain for sEH inhibitor and EET analog drug development; however, there is a high likelihood that a drug that acts on this third branch of arachidonic acid metabolism will be utilized to treat a cardiovascular or kidney disease in the next decade.
Collapse
Affiliation(s)
- John D Imig
- Department of Pharmacology and Toxicology, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, USA.
| |
Collapse
|
19
|
Abstract
The human body contains endogenous cannabinoids (endocannabinoids) that elicit effects similar to those of Δ9-tetrahydrocanabinol, the principal bioactive component of cannabis. The endocannabinoid virodhamine (O-AEA) is the constitutional isomer of the well-characterized cardioprotective and anti-inflammatory endocannabinoid anandamide (AEA). The chemical structures of O-AEA and AEA contain arachidonic acid (AA) and ethanolamine; however, AA in O-AEA is connected to ethanolamine via an ester linkage, whereas AA in AEA is connected through an amide linkage. O-AEA is involved in regulating blood pressure and cardiovascular function. We show that O-AEA is found at levels 9.6-fold higher than that of AEA in porcine left ventricle. On a separate note, the cytochrome P450 (CYP) epoxygenase CYP2J2 is the most abundant CYP in the heart where it catalyzes the metabolism of AA and AA-derived eCBs to bioactive epoxides that are involved in diverse cardiovascular functions. Herein, using competitive binding studies, kinetic metabolism measurements, molecular dynamics, and wound healing assays, we have shown that O-AEA is an endogenous inhibitor of CYP2J2 epoxygenase. As a result, the role of O-AEA as an endogenous eCB inhibitor of CYP2J2 may provide a new mode of regulation to control the activity of cardiovascular CYP2J2 in vivo and suggests a potential cross-talk between the cardiovascular endocannabinoids and the cytochrome P450 system.
Collapse
Affiliation(s)
- Lauren N. Carnevale
- Department of Biochemistry, Division of Nutritional Sciences, Neuroscience Program, University of Illinois Urbana-Champaign, Urbana IL 61801
| | - Andres S. Arango
- Center for Biophysics and Computational Biology, Division of Nutritional Sciences, Neuroscience Program, University of Illinois Urbana-Champaign, Urbana IL 61801
- Beckman Institute for Advanced Science and Technology, Division of Nutritional Sciences, Neuroscience Program, University of Illinois Urbana-Champaign, Urbana IL 61801
| | - William R. Arnold
- Department of Biochemistry, Division of Nutritional Sciences, Neuroscience Program, University of Illinois Urbana-Champaign, Urbana IL 61801
| | - Emad Tajkhorshid
- Center for Biophysics and Computational Biology, Division of Nutritional Sciences, Neuroscience Program, University of Illinois Urbana-Champaign, Urbana IL 61801
- Beckman Institute for Advanced Science and Technology, Division of Nutritional Sciences, Neuroscience Program, University of Illinois Urbana-Champaign, Urbana IL 61801
- Department of Bioengineering, Division of Nutritional Sciences, Neuroscience Program, University of Illinois Urbana-Champaign, Urbana IL 61801
| | - Aditi Das
- Department of Comparative Biosciences, Division of Nutritional Sciences, Neuroscience Program, University of Illinois Urbana-Champaign, Urbana IL 61801
- Department of Biochemistry, Division of Nutritional Sciences, Neuroscience Program, University of Illinois Urbana-Champaign, Urbana IL 61801
- Center for Biophysics and Computational Biology, Division of Nutritional Sciences, Neuroscience Program, University of Illinois Urbana-Champaign, Urbana IL 61801
- Beckman Institute for Advanced Science and Technology, Division of Nutritional Sciences, Neuroscience Program, University of Illinois Urbana-Champaign, Urbana IL 61801
| |
Collapse
|
20
|
Kamel S, Ibrahim M, Awad ET, El-Hindi HMA, Abdel-Aziz SA. Differential expression of CYP2j2 gene and protein in Camelus dromedarius. J BIOL REG HOMEOS AG 2018; 32:1473-1477. [PMID: 30378391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
CYP2J2 is a member of the cytochrome P450 superfamily. It had been described in different mammalian species; however, no studies have described this gene in Camelus dromedarius. CYP2J2 is an epoxygenase enzyme which oxidizes various fatty acids, mainly arachidonic acid, via NADPH-dependent epoxidation to generate epoxyeicosatrienoic acids (EETs). It is a multi-functional enzyme that plays crucial roles in inflammation, cancer, drug metabolism, and embryo development. It controls the water re-absorption in the kidney and maintains the blood pressure and glucose homeostasis. This study is considered the first report investigating the differential expression profiles of the CYP2J2 mRNA and protein in the liver, heart, and kidney of Camelus dromedarius. A total of 30 samples were used to determine the expression of both CYP2J2 mRNA and protein using qRT-PCR and western blotting methods, respectively. The mRNA level of CYP2J2 was significantly elevated in the liver compared to that in the heart and kidney. The tissue distribution of the CYP2J2 protein was coherent to its transcript level in the kidney, but not in the liver and heart samples. The difference between the CYP2J2 mRNA and protein distributions in the three studied organs may be attributed to the mechanism by which the CYP2J2 might be involved in the adaptability of the camel to the arid environment.
Collapse
Affiliation(s)
- S Kamel
- Biochemistry and Chemistry of Nutrition Department, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - M Ibrahim
- Biochemistry and Chemistry of Nutrition Department, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - E T Awad
- Biochemistry and Chemistry of Nutrition Department, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - H M A El-Hindi
- Biochemistry and Chemistry of Nutrition Department, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - S A Abdel-Aziz
- Biochemistry and Chemistry of Nutrition Department, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| |
Collapse
|
21
|
Abstract
As an important metabolic enzyme, it is necessary to investigate the genetic polymorphisms of CYP2J2 among healthy Tibetan individuals. Genetic polymorphisms of CYP2J2 could affect enzyme activity and lead to differences among individual responses to drugs.We sequenced the whole gene of CYP2J2 in 100 unrelated, healthy Tibetan volunteers from the Tibet Autonomous Region and screened for genetic variants in the promoters, introns, exons, and the 3'-UTR regions.We detected 4 novel genetic polymorphisms of the CYP2J2 gene. The allelic frequencies of CYP2D6*1 and *7 were 0.955 and 0.045, respectively. CYP2D6*1/*7 decreased the activity of CYP2J2 and was expressed in 9% of the sample population.Our results provided basic data about CYP2J2 polymorphisms in a Tibetan population, suggested that the enzymatic activities of CYP2J2 might be different within the ethnic group, and offered a theoretical basis for individualized medical treatment and drug genomics studies.
Collapse
Affiliation(s)
| | - Qian Zhao
- Department of Otorhinolaryngology, The First Affiliated Hospital of Xi’an Jiaotong University
| | - Yuan Shao
- Department of Otorhinolaryngology, The First Affiliated Hospital of Xi’an Jiaotong University
| | - Hua Yang
- Key Laboratory of Resource Biology and Biotechnology in Western China (Northwest University), Ministry of Education, College of Life Sciences, Northwest University, Xi’an
| | - Tianbo Jin
- Key Laboratory of Resource Biology and Biotechnology in Western China (Northwest University), Ministry of Education, College of Life Sciences, Northwest University, Xi’an
- School of Medicine, Xizang Minzu University, Xianyang, Shaanxi, China
| | - Baiya Li
- Department of Otorhinolaryngology, The First Affiliated Hospital of Xi’an Jiaotong University
| | - Honghui Li
- Department of Otorhinolaryngology, The First Affiliated Hospital of Xi’an Jiaotong University
| |
Collapse
|
22
|
Cizkova K, Tauber Z. Time-dependent expression pattern of cytochrome P450 epoxygenases and soluble epoxide hydrolase in normal human placenta. Acta Histochem 2018; 120:513-519. [PMID: 29908721 DOI: 10.1016/j.acthis.2018.06.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Revised: 06/06/2018] [Accepted: 06/08/2018] [Indexed: 11/17/2022]
Abstract
CYP2C and CYP2 J enzymes, commonly named as cytochrome P450 (CYP) epoxygenases, convert arachidonic acid to four regioisomeric epoxyeicosatrienoic acids (EETs), biologically active eicosanoids with many functions in organism. EETs are rapidly hydrolysed to less active dihydroxyeicosatrienoic acids (DHETs) by soluble epoxide hydrolase (sEH). We investigated spatio-temporal expression pattern of CYP2C8, CYP2C9, CYP2 J2 and sEH in normal human placenta by immunohistochemical method. In the villous trophoblast, CYP2C8 was the most abundant protein. Its expression is higher than the CYP2C9 and CYP2 J2 in the cytotrophoblast in the embryonic stage of development and remains higher in syncytiotrophoblast of term placenta. Unlike to CYP2C8, CYP2C9 and CYP2 J2 expression decrease in term placenta. sEH expression increases with gestation age and is strictly limited to cytotrophoblast in embryonic and foetal stages of the development. Moreover, CYP2C8 shows more intensive staining than the other protein monitored in Hofbauer cells in villous stroma. Specific information regarding the exact role of EETs and DHETs functions in a normal placenta is still unknown. Based on CYP epoxygenases and sEH localization and well known information about the functions of placental structures during development, we suggest that these enzymes could play different roles in various cell populations in the placenta. As the placenta is absolutely crucial for prenatal development, arachidonic acid is essential part of human nutrient and CYP epoxygenases expression can be affected by xenobiotics, further investigation of the exact role of CYP epoxygenases, sEH, and their metabolites in normal pregnancy and under pathological conditions is needed.
Collapse
Affiliation(s)
- K Cizkova
- Department of Histology and Embryology, Faculty of Medicine and Dentistry, Palacky University, 77900, Olomouc, Czech Republic; Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University, 77900, Olomouc, Czech Republic.
| | - Z Tauber
- Department of Histology and Embryology, Faculty of Medicine and Dentistry, Palacky University, 77900, Olomouc, Czech Republic.
| |
Collapse
|
23
|
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.
Collapse
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.
| |
Collapse
|
24
|
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.
Collapse
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.
| |
Collapse
|
25
|
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.
Collapse
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.
| |
Collapse
|
26
|
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.
Collapse
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.
| |
Collapse
|
27
|
Zhou C, Huang J, Li Q, Zhan C, Xu X, Zhang X, Ai D, Zhu Y, Wen Z, Wang DW. CYP2J2-derived EETs attenuated ethanol-induced myocardial dysfunction through inducing autophagy and reducing apoptosis. Free Radic Biol Med 2018; 117:168-179. [PMID: 29427791 DOI: 10.1016/j.freeradbiomed.2018.02.009] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Revised: 01/16/2018] [Accepted: 02/05/2018] [Indexed: 12/19/2022]
Abstract
Chronic excessive drinking leads to myocardial contractile dysfunction and dilated cardiomyopathy, where ethanol toxicity plays an essential role. Cytochrome P450 (CYP) epoxygenases metabolize arachidonic acids to form epoxyeicosatrienoic acids (EETs), which exert beneficial roles in the cardiovascular system, but their role in alcoholic cardiomyopathy is elusive. This study was designed to evaluate the effects and mechanisms of CYP2J2 gene delivery on ethanol-induced myocardial dysfunction with focus on autophagy and apoptosis. C57BL/6 J mice were challenged with a 4% Lieber-DeCarli ethanol liquid diet for 8 weeks, before which rAAV9-CYP2J2 was injected via the tail vein. Cardiac function was assessed using echocardiography, hemodynamic measurement, and cardiac histology. The results showed that chronic ethanol intake led to cardiac dilation, contractile dysfunction, cardiomyocyte hypertrophy, oxidative stress, and cardiomyocyte apoptosis, while CYP2J2 overexpression ameliorated these effects. Additionally, chronic ethanol consumption triggered myocardial autophagosome formation, but impaired autophagic flux via disrupting autophagosome-lysosome fusion, as evidenced by increased LC3 II/I, Beclin-1 and SQSTM1 levels, but reduced LAMP-2 expression. Interestingly, rAAV9-CYP2J2 treatment exerted cardioprotection via restoring autophagic flux in the alcoholic myocardium. Similarly, exogenous 11,12-EET addition significantly restored ethanol-induced neonatal rat cardiomyocyte autophagic flux impairment and inhibited apoptosis, both of which were mediated by AMPK/mTOR signaling pathway in vitro. In conclusion, our data suggest that CYP2J2-derived EETs attenuate ethanol-induced myocardial dysfunction through inducing autophagy and reducing apoptosis.
Collapse
Affiliation(s)
- Chi Zhou
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, and Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Wuhan 430030, China
| | - Jin Huang
- Division of Hematology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan 430030, China
| | - Qing Li
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, and Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Wuhan 430030, China
| | - Chenao Zhan
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, and Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Wuhan 430030, China
| | - Xizhen Xu
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, and Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Wuhan 430030, China
| | - Xu Zhang
- Tianjin Key Laboratory of Metabolic Diseases, Collaborative Innovation Center of Tianjin for Medical Epigenetics, Department of Physiology and Pathophysiology, Tianjin Medical University, Tianjin 300070, China
| | - Ding Ai
- Tianjin Key Laboratory of Metabolic Diseases, Collaborative Innovation Center of Tianjin for Medical Epigenetics, Department of Physiology and Pathophysiology, Tianjin Medical University, Tianjin 300070, China
| | - Yi Zhu
- Tianjin Key Laboratory of Metabolic Diseases, Collaborative Innovation Center of Tianjin for Medical Epigenetics, Department of Physiology and Pathophysiology, Tianjin Medical University, Tianjin 300070, China
| | - Zheng Wen
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, and Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Wuhan 430030, China.
| | - Dao Wen Wang
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, and Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Wuhan 430030, China.
| |
Collapse
|
28
|
Gervasini G, Luna E, Garcia-Pino G, Azevedo L, Mota-Zamorano S, José Cubero J. Polymorphisms in genes involved in vasoactive eicosanoid synthesis affect cardiovascular risk in renal transplant recipients. Curr Med Res Opin 2018; 34:247-253. [PMID: 29022765 DOI: 10.1080/03007995.2017.1391757] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
OBJECTIVE Arachidonic acid metabolism by cytochrome P450 (CYP) epoxygenases leads to epoxyeicosatrienoic acids (EETs), which are eicosanoids with vasodilator and anti-inflammatory properties. We aim to determine whether genetic variability in these routes may contribute to cardiovascular (CV) risk in renal transplant recipients. METHODS In a cohort of 355 patients, we determined the presence of two polymorphisms, CYP2C8*3 and CYP2J2*7, known to affect eicosanoid levels. Associations with CV mortality, CV event-free long-term survival and graft survival were retrospectively investigated by logistic regression models. RESULTS CYP2J2*7 showed a statistical trend towards higher CV mortality (p = .06) and lower cardiac or cerebral event-free long-term survival (p = .05), whilst CYP2C8*3 displayed a significant inverse association with the risk of CV event (hazard ratio [HR] = 0.34 [0.15-0.78], p = .01). The association of CYP2J2*7 with CV mortality became significant when the analysis was restrained to 316 patients without a history of CV events prior to transplantation (HR = 15.72 [2.83-91.94], p = .005). In this subgroup of patients both single nucleotide polymorphisms (SNPs) were significantly associated with event-free survival. HR values were 5.44 (1.60-18.51), p = .007 and 0.26 (0.09-0.75), p = .012 for CYP2J2*7 and CYP2C8*3, respectively. CONCLUSIONS Our results show, for the first time to our knowledge, that two SNPs in CYP2C8 and CYP2J2, which synthesize EETs, may modify CV outcomes in renal transplant recipients, a population that is already at a high risk of suffering these events.
Collapse
Affiliation(s)
- Guillermo Gervasini
- a Department of Medical and Surgical Therapeutics, Division of Pharmacology , Medical School, University of Extremadura , Badajoz , Spain
| | - Enrique Luna
- b Service of Nephrology, Infanta Cristina University Hospital , Badajoz , Spain
| | - Guadalupe Garcia-Pino
- a Department of Medical and Surgical Therapeutics, Division of Pharmacology , Medical School, University of Extremadura , Badajoz , Spain
| | - Lilia Azevedo
- b Service of Nephrology, Infanta Cristina University Hospital , Badajoz , Spain
| | - Sonia Mota-Zamorano
- a Department of Medical and Surgical Therapeutics, Division of Pharmacology , Medical School, University of Extremadura , Badajoz , Spain
| | - Juan José Cubero
- b Service of Nephrology, Infanta Cristina University Hospital , Badajoz , Spain
| |
Collapse
|
29
|
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.
Collapse
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.
| |
Collapse
|
30
|
Muñoz M, López-Oliva ME, Pinilla E, Martínez MP, Sánchez A, Rodríguez C, García-Sacristán A, Hernández M, Rivera L, Prieto D. CYP epoxygenase-derived H 2O 2 is involved in the endothelium-derived hyperpolarization (EDH) and relaxation of intrarenal arteries. Free Radic Biol Med 2017; 106:168-183. [PMID: 28212823 DOI: 10.1016/j.freeradbiomed.2017.02.031] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Revised: 01/31/2017] [Accepted: 02/13/2017] [Indexed: 01/03/2023]
Abstract
Reactive oxygen species (ROS) like hydrogen peroxide (H2O2) are involved in the in endothelium-derived hyperpolarization (EDH)-type relaxant responses of coronary and mesenteric arterioles. The role of ROS in kidney vascular function has mainly been investigated in the context of harmful ROS generation associated to kidney disease. The present study was sought to investigate whether H2O2 is involved in the endothelium-dependent relaxations of intrarenal arteries as well the possible endothelial sources of ROS generation involved in these responses. Under conditions of cyclooxygenase (COX) and nitric oxide (NO) synthase inhibition, acetylcholine (ACh) induced relaxations and stimulated H2O2 release that were reduced by catalase and by the glutathione peroxidase (GPx) mimetic ebselen in rat renal interlobar arteries, suggesting the involvement of H2O2 in the endothelium-dependent responses. ACh relaxations were also blunted by the CYP2C inhibitor sulfaphenazole and by the NADPH oxidase inhibitor apocynin. Acetylcholine stimulated both superoxide (O2•-) and H2O2 production that were reduced by sulfaphenazole and apocynin. Expression of the antioxidant enzyme CuZnSOD and of the H2O2 reducing enzymes catalase and GPx-1 was found in both intrarenal arteries and renal cortex. On the other hand, exogenous H2O2 relaxed renal arteries by decreasing vascular smooth muscle (VSM) intracellular calcium concentration [Ca2+]i and markedly enhanced endothelial KCa currents in freshly isolated renal endothelial cells. CYP2C11 and CYP2C23 epoxygenases were highly expressed in interlobar renal arteries and renal cortex, respectively, and were co-localized with eNOS in renal endothelial cells. These results demonstrate that H2O2 is involved in the EDH-type relaxant responses of renal arteries and that CYP 2C epoxygenases are physiologically relevant endothelial sources of vasodilator H2O2 in the kidney.
Collapse
Affiliation(s)
- Mercedes Muñoz
- Departamento de Fisiología, Facultad de Farmacia, Universidad Complutense de Madrid, 28040-Madrid, Spain
| | - Maria Elvira López-Oliva
- Departamento de Fisiología, Facultad de Farmacia, Universidad Complutense de Madrid, 28040-Madrid, Spain
| | - Estéfano Pinilla
- Departamento de Fisiología, Facultad de Farmacia, Universidad Complutense de Madrid, 28040-Madrid, Spain
| | - María Pilar Martínez
- Departamento de Anatomía and Anatomía Patológica Comparadas, Facultad de Veterinaria, Universidad Complutense de Madrid, 28040-Madrid, Spain
| | - Ana Sánchez
- Departamento de Fisiología, Facultad de Farmacia, Universidad Complutense de Madrid, 28040-Madrid, Spain
| | - Claudia Rodríguez
- Departamento de Fisiología, Facultad de Farmacia, Universidad Complutense de Madrid, 28040-Madrid, Spain
| | - Albino García-Sacristán
- Departamento de Fisiología, Facultad de Farmacia, Universidad Complutense de Madrid, 28040-Madrid, Spain
| | - Medardo Hernández
- Departamento de Fisiología, Facultad de Farmacia, Universidad Complutense de Madrid, 28040-Madrid, Spain
| | - Luis Rivera
- Departamento de Fisiología, Facultad de Farmacia, Universidad Complutense de Madrid, 28040-Madrid, Spain
| | - Dolores Prieto
- Departamento de Fisiología, Facultad de Farmacia, Universidad Complutense de Madrid, 28040-Madrid, Spain.
| |
Collapse
|
31
|
Hanif A, Edin ML, Zeldin DC, Morisseau C, Falck JR, Nayeem MA. Vascular endothelial overexpression of human CYP2J2 (Tie2-CYP2J2 Tr) modulates cardiac oxylipin profiles and enhances coronary reactive hyperemia in mice. PLoS One 2017; 12:e0174137. [PMID: 28328948 PMCID: PMC5362206 DOI: 10.1371/journal.pone.0174137] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Accepted: 03/03/2017] [Indexed: 01/22/2023] Open
Abstract
Arachidonic acid is metabolized to epoxyeicosatrienoic acids (EETs) by cytochrome (CYP) P450 epoxygenases, and to ω-terminal hydroxyeicosatetraenoic acids (HETEs) by ω-hydroxylases. EETs and HETEs often have opposite biologic effects; EETs are vasodilatory and protect against ischemia/reperfusion injury, while ω-terminal HETEs are vasoconstrictive and cause vascular dysfunction. Other oxylipins, such as epoxyoctadecaenoic acids (EpOMEs), hydroxyoctadecadienoic acids (HODEs), and prostanoids also have varied vascular effects. Post-ischemic vasodilation in the heart, known as coronary reactive hyperemia (CRH), protects against potential damage to the heart muscle caused by ischemia. The relationship among CRH response to ischemia, in mice with altered levels of CYP2J epoxygenases has not yet been investigated. Therefore, we evaluated the effect of endothelial overexpression of the human cytochrome P450 epoxygenase CYP2J2 in mice (Tie2-CYP2J2 Tr) on oxylipin profiles and CRH. Additionally, we evaluated the effect of pharmacologic inhibition of CYP-epoxygenases and inhibition of ω-hydroxylases on CRH. We hypothesized that CRH would be enhanced in isolated mouse hearts with vascular endothelial overexpression of human CYP2J2 through modulation of oxylipin profiles. Similarly, we expected that inhibition of CYP-epoxygenases would reduce CRH, whereas inhibition of ω-hydroxylases would enhance CRH. Compared to WT mice, Tie2-CYP2J2 Tr mice had enhanced CRH, including repayment volume, repayment duration, and repayment/debt ratio (P < 0.05). Similarly, inhibition of ω-hydroxylases increased repayment volume and repayment duration, in Tie2-CYP2J2 Tr compared to WT mice (P < 0.05). Endothelial overexpression of CYP2J2 significantly changed oxylipin profiles, including increased EETs (P < 0.05), increased EpOMEs (P < 0.05), and decreased 8-iso-PGF2α (P < 0.05). Inhibition of CYP epoxygenases with MS-PPOH attenuated CRH (P < 0.05). Ischemia caused a decrease in mid-chain HETEs (5-, 11-, 12-, 15-HETEs P < 0.05) and HODEs (P < 0.05). These data demonstrate that vascular endothelial overexpression of CYP2J2, through changing the oxylipin profiles, enhances CRH. Inhibition of CYP epoxygenases decreases CRH, whereas inhibition of ω-hydroxylases enhances CRH.
Collapse
Affiliation(s)
- Ahmad Hanif
- Basic Pharmaceutical Sciences, School of Pharmacy, Center for Basic and Translational Stroke Research. West Virginia University, Morgantown, West Virginia, United States of America
| | - Matthew L. Edin
- Division of Intramural Research, NIEHS/NIH, Research Triangle Park, North Carolina, United States of America
| | - Darryl C. Zeldin
- Division of Intramural Research, NIEHS/NIH, Research Triangle Park, North Carolina, United States of America
| | | | - John R. Falck
- Biochemistry, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
| | - Mohammed A. Nayeem
- Basic Pharmaceutical Sciences, School of Pharmacy, Center for Basic and Translational Stroke Research. West Virginia University, Morgantown, West Virginia, United States of America
| |
Collapse
|
32
|
Abstract
BACKGROUND AND PURPOSE Ischemic stroke (IS) is the main cause of mortality and disability among the old people in China and is a multifactorial disease influenced by many factors including genetic factors like the allele for CYP 2J2. It has been demonstrated that CYP2J2 polymorphisms alter the transcriptional activity. However, studies on the association between CYP2J2-50G/T polymorphism and IS have reported conflicting results. Thus, our study aimed to examine the association between 4 variants in the CYP2J2 gene and the risk of IS and its subtypes, in the Chinese population. MATERIALS AND METHODS In this study, genotyping was performed by using polymerase chain reaction (PCR) sequencing for 202 IS patients and 206 age- and sex-matched controls. Odds ratios (ORs) and confidence interval (CI) were estimated by multivariate logistic regression and PCR results were confirmed by DNA sequencing. A meta-analysis was conducted to evaluate the association of CYP2J2-50G>T polymorphism with the risk of IS in Chinese population by calculating pooled OR. RESULTS We found this polymorphism was significantly associated with IS (17.82% vs. 10.68%, P = 0.039). Multiple logistic regression analysis revealed that GT genotype was associated with a significantly high risk of IS (OR = 2.32, 95% CI: 1.21-4.45, P = 0. 011) after adjustment for other confounding factors such as hypertension, diabetes, heart disease, smoking habit, family history, triglyceride and low-density lipoprotein levels. We also found a significant association of GT genotype with small artery occlusion (SAA) (P < 0.05; OR = 2.22; 95% CI: 1.043-4.72). Meta-analysis results also showed that the GT genotype carriers had a negative effect on the risk of IS in Chinese population with overall OR of 1.40 (95% CI: 1.06-1.84). CONCLUSION The findings of the present study suggested that polymorphism in -50G/T position of CYP2J2 gene might be a risk factor for IS in Chinese population. Further large prospective studies were required to confirm these findings.
Collapse
|
33
|
Ma HY, Ning J, Ge GB, Yang L, Hao DC. [Research progress of human cytochrome P450 2J2 and its ligands]. Yao Xue Xue Bao 2017; 52:26-33. [PMID: 29911373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Cytochrome P4502J2 (CYP2J2) is widely distributed in various human tissues and takes a part in the metabolism of endogenous compounds and drugs. CYP2J2 can convert arachidonic acid (AA) to expoxyeicosatrienoic acids (EETs), which have various biological effects, implying the important role of CYP2J2 in the regulation of cardiovascular system and promotion of tumor progression and metastasis. Additionally, CYP2J2 plays an indispensable role in the intestinal metabolism of various drugs, such as astemizole, terfenadine and ebastine. In this review, the metabolic function, characteristic of catalysis and tissue distribution of CYP2J2 are discussed with the latest literatures both in China and abroad. The state-of-the-art methods for characterization of CYP2J2 and current trend of substrate discovery as well as its relationship with disease are highlighted. This review gives in-depth understanding of the function of CYP2J2 and its role in disease advance. The information of ligand (substrate and inhibitor) will provide the theoretical guidance and reference to the development of novel drugs for CYP2J2.
Collapse
|
34
|
Wang W, Yang J, Qi W, Yang H, Wang C, Tan B, Hammock BD, Park Y, Kim D, Zhang G. Lipidomic profiling of high-fat diet-induced obesity in mice: Importance of cytochrome P450-derived fatty acid epoxides. Obesity (Silver Spring) 2017; 25:132-140. [PMID: 27891824 PMCID: PMC5182168 DOI: 10.1002/oby.21692] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2016] [Revised: 09/21/2016] [Accepted: 09/21/2016] [Indexed: 01/18/2023]
Abstract
OBJECTIVE Enzymatic metabolism of polyunsaturated fatty acids leads to formation of bioactive lipid metabolites (LMs). Previous studies have shown that obesity leads to deregulation of LMs in adipose tissues. However, most previous studies have focused on a single or limited number of LMs, and few systematical analyses have been carried out. METHODS A LC-MS/MS-based lipidomics approach was used, which can analyze >100 LMs produced by cyclooxygenase, lipoxygenase, and cytochrome P450 (CYP) enzymes, to analyze the profile of LMs in high-fat diet-induced obesity in mice. RESULTS LC-MS/MS showed that high-fat feeding significantly modulated profiles of LMs in adipose tissues. Among the three major polyunsaturated fatty acid metabolizing pathways (cyclooxygenase, lipoxygenase, and CYP), CYP-derived fatty acid epoxides were the most dramatically altered LMs. Almost all types of fatty acid epoxides were reduced by 70% to 90% in adipose tissues of high-fat diet-fed mice. Consistent with the reduced levels of fatty acid epoxides, the gene expression of several CYP epoxygenases, including Cyp2j5, Cyp2j6, and Cyp2c44, was significantly reduced in adipose tissues of high-fat diet-fed mice. CONCLUSIONS Results show that CYP-derived fatty acid epoxides are the most responsive LMs in high-fat diet-induced obesity, suggesting that these LMs could play critical roles in obesity.
Collapse
Affiliation(s)
- Weicang Wang
- Department of Food Science, University of Massachusetts, Amherst, MA, 01003
| | - Jun Yang
- Department of Entomology and Comprehensive Cancer Center, University of California, Davis, CA, 95616
| | - Weipeng Qi
- Department of Food Science, University of Massachusetts, Amherst, MA, 01003
| | - Haixia Yang
- Department of Food Science, University of Massachusetts, Amherst, MA, 01003
| | - Chang Wang
- Department of Entomology and Comprehensive Cancer Center, University of California, Davis, CA, 95616
| | - Bowen Tan
- Department of Entomology and Comprehensive Cancer Center, University of California, Davis, CA, 95616
| | - Bruce D. Hammock
- Department of Entomology and Comprehensive Cancer Center, University of California, Davis, CA, 95616
| | - Yeonhwa Park
- Department of Food Science, University of Massachusetts, Amherst, MA, 01003
| | - Daeyoung Kim
- Department of Mathematics and Statistics, University of Massachusetts, Amherst, MA, 01003
| | - Guodong Zhang
- Department of Food Science, University of Massachusetts, Amherst, MA, 01003
- To whom correspondence should be addressed: Guodong Zhang, Department of Food Science, University of Massachusetts, Amherst, MA, USA. , Tel: 413-4541014, Fax: 413-5451262
| |
Collapse
|
35
|
Huang H, Chang HH, Xu Y, Reddy DS, Du J, Zhou Y, Dong Z, Falck JR, Wang MH. Epoxyeicosatrienoic Acid Inhibition Alters Renal Hemodynamics During Pregnancy. Exp Biol Med (Maywood) 2016; 231:1744-52. [PMID: 17138762 DOI: 10.1177/153537020623101112] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
In this study we examined the expression of cytochrome P450 (CYP) 2C and CYP2J Isoforms in renal proximal tubules and microvessels isolated from rats at different stages of pregnancy. We also selectively inhibited epoxyeicosatrienoic acid (EET) production by the administration of N-methanesulfonyl-6-(2-proparyloxyphenyl)hexanamide (MSPPOH 20 mg/kg/day iv) to rats during Days 14–17 of gestation and to age-matched virgin rats and determined the consequent effects on renal function. Western blot analysis showed that CYP2C11, CYP2C23, and CYP2J2 expression was significantly increased in the renal microvessels of pregnant rats on Day 12 of gestation. In the proximal tubules, CYP2C23 expression was significantly increased throughout pregnancy, while the expression of CYP2C11 was increased in early and late pregnancy and the expression of CYP2J2 was increased in middle and late pregnancy. MSPPOH treatment significantly Increased pregnant rats’ mean arterial pressure, renal vascular resistance, and sodium balance but significantly decreased renal blood flow, glomerular filtration rate, and urinary sodium excretion, as well as fetal pups’ body weight and length. In contrast, MSPPOH treatment had no effect on renal hemodynamics or urinary sodium excretion in age-matched virgin rats. In pregnant rats, MSPPOH treatment also caused selective inhibition of renal cortical EET production and significantly decreased the expression of CYP2C11, CYP2C23, and CYP2J2 in the renal cortex, renal microvessels, and proximal tubules. These results suggest that upregulation of renal vascular and tubular EETs contributes to the control of blood pressure and renal function during pregnancy.
Collapse
Affiliation(s)
- Hui Huang
- Department of Physiology, Medical College of Georgia, Augusta, GA 30912, USA
| | | | | | | | | | | | | | | | | |
Collapse
|
36
|
Cizkova K, Rajdova A, Ehrmann J. Soluble Epoxide Hydrolase as a Potential Key Factor for Human Prenatal Development. Cells Tissues Organs 2016; 201:277-86. [PMID: 27144772 DOI: 10.1159/000444674] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/11/2016] [Indexed: 11/19/2022] Open
Abstract
Soluble epoxide hydrolase (sEH) converts highly active epoxyeicosatrienoic acids (EETs) generated by cytochrome P450 (CYP) epoxygenases from arachidonic acid to less active dihydroxyeicosatrienoic acids. Because of the role of EETs in processes potentially relevant to the development of organisms, EETs could be suggested as potential morphogens. Unfortunately, only little is known about sEH expression during human intrauterine development (IUD). We investigated the spatio-temporal expression pattern of sEH in human embryonic/foetal intestines, liver and kidney from the 6th to the 20th week of IUD by two-step immunohistochemistry. sEH was expressed during the whole tested period of prenatal development and its level of expression remained more or less the same during the estimated period of IUD. Distribution of CYP epoxygenases and sEH in the intestinal epithelium and the nephrogenic zone of the kidney suggests an influence of EETs on cell proliferation and differentiation and, consequently, on the development of intestines and kidney. Thus, alterations in the strict spatio-temporal pattern of expression of CYP epoxygenases and/or sEH during human prenatal development by xenobiotics could have a harmful impact for developing organisms.
Collapse
|
37
|
Yu G, Zeng X, Wang H, Hou Q, Tan C, Xu Q, Wang H. 14,15-epoxyeicosatrienoic Acid suppresses cigarette smoke extract-induced apoptosis in lung epithelial cells by inhibiting endoplasmic reticulum stress. Cell Physiol Biochem 2015; 36:474-86. [PMID: 25968975 DOI: 10.1159/000430113] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/13/2015] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND/AIMS Epoxyeicosatrienoic acids (EETs), a type of lipid mediators produced by cytochrome P450 epoxygenases, exert anti-inflammatory, angiogenic, anti-oxidative and anti-apoptotic effects. However, the role of EETs in cigarette smoke-induced lung injury and the underlying mechanisms are not fully known. The aim of this study was to explore the effects of CYP2J2-EETs on cigarette smoke extracts (CSE)-induced apoptosis in human bronchial epithelial cell line (Beas-2B) and the possible mechanisms involved. METHODS Cytochrome P450 epoxygenase 2J2 (CYP2J2) and its metabolites EETs were assessed by western blotting or LC-MS-MS. Cell viability and apoptosis were determined by MTT assay and AnnexinV-PI staining. Reactive oxygen species (ROS) were assessed by measuring H2DCFDA. Caspase-3, HO-1, MAPK and endoplasmic reticulum (ER) stress-related markers GRP78, p-elF2a, and CHOP were evaluated by western blotting. RESULTS CSE suppressed expression of both CYP2J2 and EET by Beas-2B cells. CSE also induced apoptosis, the generation of ROS and the ER stress in Beas-2B cells. These changes were abolished by pretreatment with exogenous 14,15-EET while pretreatment with 14,15-EEZE, a selective EET antagonist, abolished the protective effects of 14,15-EET. In addition, EETs increased the expression of antioxidant enzyme HO-1. Furthermore, 14,15-EET reduced CSE-induced activation of p38 and JNK. CONCLUSION The data suggest that CYP2J2-derived EETs protect against CSE-induced lung injury possibly through attenuating ER stress.
Collapse
Affiliation(s)
- Ganggang Yu
- The Department of Respiratory Medicine, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | | | | | | | | | | | | |
Collapse
|
38
|
Yan H, Kong Y, He B, Huang M, Li J, Zheng J, Liang L, Bi J, Zhao S, Shi L. CYP2J2 rs890293 polymorphism is associated with susceptibility to Alzheimer's disease in the Chinese Han population. Neurosci Lett 2015; 593:56-60. [PMID: 25796175 DOI: 10.1016/j.neulet.2015.03.024] [Citation(s) in RCA: 21] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Revised: 03/09/2015] [Accepted: 03/16/2015] [Indexed: 12/27/2022]
Abstract
Alzheimer's disease (AD) is a common neurodegenerative disorder characterized by progressive cognitive dysfunction and memory loss. Increasing evidence indicates that inflammation in the brain is a powerful factor in AD progression. Epoxyeicosatrienoic acids, the biologically active derivatives of arachidonic acid, synthesized by cytochrome P450 (CYP) epoxygenases, have been proven to have powerful anti-inflammatory effects. The aim of this study was to examine whether polymorphism in CYP2J2, encoding one of the most common CYP epoxygenase isoforms, is associated with late-onset AD (LOAD). This case-control study genotyped 672 representatives of the Chinese Han population, including 321 LOAD patients and 351 healthy controls matched for age and gender, for the functional rs890293 polymorphism within CYP2J2 by means of matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS). The CYP2J2 rs890293 T allele and GT+TT genotype were significantly associated with an increased risk of LOAD. Further data stratification according to the presence of the apolipoprotein E (APOE) e4 allele confirmed a strong association between CYP2J2 rs890293 and LOAD, and indicated that the involvement of CYP2J2 in LOAD was independent of ApoE-ϵ4. Our study demonstrated that CYP2J2 rs890293 is a possible predisposing genetic factor for progression of LOAD.
Collapse
Affiliation(s)
- Huacheng Yan
- Department of Pharmacy, Guangzhou General Hospital of Guangzhou Military Command, Guangzhou 510010, China; Laboratory of Molecular Biology, Center for Disease Control and Prevention of Guangzhou Military Command, Guangzhou 510507, China
| | - Yanying Kong
- Department of Pharmacy, Guangzhou General Hospital of Guangzhou Military Command, Guangzhou 510010, China; Department of Pharmacy, Guangzhou First People's Hospital, Guangzhou 510180, China
| | - Baoxia He
- Department of Pharmacy, Henan Cancer Hospital, Zhengzhou 450003, China
| | - Mukun Huang
- Department of Pharmacy, Guangzhou General Hospital of Guangzhou Military Command, Guangzhou 510010, China
| | - Jian Li
- Department of Pharmacy, Guangzhou General Hospital of Guangzhou Military Command, Guangzhou 510010, China
| | - Jiaqiang Zheng
- Department of Pharmacy, Guangzhou General Hospital of Guangzhou Military Command, Guangzhou 510010, China
| | - Lei Liang
- Department of Pharmacy, Guangzhou General Hospital of Guangzhou Military Command, Guangzhou 510010, China
| | - Jianjun Bi
- Department of Pharmacy, Guangzhou General Hospital of Guangzhou Military Command, Guangzhou 510010, China
| | - Shujin Zhao
- Department of Pharmacy, Guangzhou General Hospital of Guangzhou Military Command, Guangzhou 510010, China
| | - Lei Shi
- Department of Pharmacy, Guangzhou General Hospital of Guangzhou Military Command, Guangzhou 510010, China.
| |
Collapse
|
39
|
Ma WJ, Sun YH, Jiang JX, Dong XW, Zhou JY, Xie QM. Epoxyeicosatrienoic acids attenuate cigarette smoke extract-induced interleukin-8 production in bronchial epithelial cells. Prostaglandins Leukot Essent Fatty Acids 2015; 94:13-9. [PMID: 25467970 DOI: 10.1016/j.plefa.2014.10.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2014] [Revised: 09/03/2014] [Accepted: 10/07/2014] [Indexed: 11/19/2022]
Abstract
In response to endothelial cell activation, arachidonic acid can be converted by cytochrome P450 (CYP) epoxygenases to epoxyeicosatrienoic acids (EETs), which have potent vasodilator and anti-inflammatory properties. In this study, we investigated the effects of exogenous EETs on cigarette smoke extract (CSE)-induced inflammation in human bronchial epithelial cells (NCI-H292). We found that CSE inhibited the expression of CYP2C8 and mildly stimulated the expression of epoxide hydrolase 2 (EPHX2) but did not change the expression of CYP2J2. Treatment with 11,12-EET or 14,15-EET attenuated the CSE-induced release of interleukin (IL)-8 by inhibiting the phosphorylation of p38 mitogen-activated protein kinases (MAPKs). Our results demonstrated that CSE may reduce the anti-inflammatory ability of epithelial cells themselves by lowering the EET level. EETs from pulmonary epithelial cells may play a critical protective role on epithelial cell injury.
Collapse
Affiliation(s)
- Wen-Jiang Ma
- The First Affiliated Hospital of Medical College, Zhejiang University, Hangzhou 310009, China
| | - Yan-Hong Sun
- Zhejiang Respiratory Drugs Research Laboratory of State Food and Drug Administration of China, Medical College of Zhejiang University, Hangzhou 310058, China
| | - Jun-Xia Jiang
- Zhejiang Respiratory Drugs Research Laboratory of State Food and Drug Administration of China, Medical College of Zhejiang University, Hangzhou 310058, China
| | - Xin-Wei Dong
- Zhejiang Respiratory Drugs Research Laboratory of State Food and Drug Administration of China, Medical College of Zhejiang University, Hangzhou 310058, China
| | - Jian-Ying Zhou
- The First Affiliated Hospital of Medical College, Zhejiang University, Hangzhou 310009, China.
| | - Qiang-Min Xie
- Zhejiang Respiratory Drugs Research Laboratory of State Food and Drug Administration of China, Medical College of Zhejiang University, Hangzhou 310058, China; Laboratory Animal Center of Zhejiang University, Hangzhou 310058, China.
| |
Collapse
|
40
|
Li R, Xu X, Chen C, Wang Y, Gruzdev A, Zeldin DC, Wang DW. CYP2J2 attenuates metabolic dysfunction in diabetic mice by reducing hepatic inflammation via the PPARγ. Am J Physiol Endocrinol Metab 2015; 308:E270-82. [PMID: 25389363 PMCID: PMC4329496 DOI: 10.1152/ajpendo.00118.2014] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [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] [Indexed: 01/04/2023]
Abstract
Epoxyeicosatrienoic acids (EETs) and arachidonic acid-derived cytochrome P450 (CYP) epoxygenase metabolites have diverse biological effects, including anti-inflammatory properties in the vasculature. Increasing evidence suggests that inflammation in type 2 diabetes is a key component in the development of insulin resistance. In this study, we investigated whether CYP epoxygenase expression and exogenous EETs can attenuate insulin resistance in diabetic db/db mice and in cultured hepatic cells (HepG2). In vivo, CYP2J2 expression and the accompanying increase in EETs attenuated insulin resistance, as determined by plasma glucose levels, glucose tolerance test, insulin tolerance test, and hyperinsulinemic euglycemic clamp studies. CYP2J2 expression reduced the production of proinflammatory cytokines in liver, including CRP, IL-6, IL-1β, and TNFα, and decreased the infiltration of macrophages in liver. CYP2J2 expression also decreased activation of proinflammatory signaling cascades by decreasing NF-κB and MAPK activation in hepatocytes. Interestingly, CYP2J2 expression and exogenous EET treatment increased glucose uptake and activated the insulin-signaling cascade both in vivo and in vitro, suggesting that CYP2J2 metabolites play a role in glucose homeostasis. Furthermore, CYP2J2 expression upregulated PPARγ, which has been shown to induce adipogenesis, which attenuates dyslipidemias observed in diabetes. All of the findings suggest that CYP2J2 expression attenuates the diabetic phenotype and insulin resistance via inhibition of NF-κB and MAPK signaling pathways and activation of PPARγ.
Collapse
Affiliation(s)
- Rui Li
- Departments of Internal Medicine and Institute of Hypertension, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; and
| | - Xizhen Xu
- Departments of Internal Medicine and Institute of Hypertension, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; and
| | - Chen Chen
- Departments of Internal Medicine and Institute of Hypertension, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; and
| | - Yan Wang
- Departments of Internal Medicine and Institute of Hypertension, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; and
| | - Artiom Gruzdev
- Division of Intramural Research, National Institute of Environmental Health Sciences/National Institutes of Health, Research Triangle Park, North Carolina
| | - Darryl C Zeldin
- Division of Intramural Research, National Institute of Environmental Health Sciences/National Institutes of Health, Research Triangle Park, North Carolina
| | - Dao Wen Wang
- Departments of Internal Medicine and Institute of Hypertension, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; and
| |
Collapse
|
41
|
Chen G, Xu R, Zhang S, Wang Y, Wang P, Edin ML, Zeldin DC, Wang DW. CYP2J2 overexpression attenuates nonalcoholic fatty liver disease induced by high-fat diet in mice. Am J Physiol Endocrinol Metab 2015; 308:E97-E110. [PMID: 25389366 PMCID: PMC4297779 DOI: 10.1152/ajpendo.00366.2014] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [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] [Indexed: 12/14/2022]
Abstract
Cytochrome P-450 epoxygenase-derived epoxyeicosatrienoic acids (EETs) exert diverse biological activities, which include potent vasodilatory, anti-inflammatory, antiapoptotic, and antioxidatant effects, and cardiovascular protection. Liver has abundant epoxygenase expression and high levels of EET production; however, the roles of epoxygenases in liver diseases remain to be elucidated. In this study, we investigated the protection against high-fat diet-induced nonalcoholic fatty liver disease (NAFLD) in mice with endothelial-specific CYP2J2 overexpression (Tie2-CYP2J2-Tr). After 24 wk of high-fat diet, Tie2-CYP2J2-Tr mice displayed attenuated NAFLD compared with controls. Tie2-CYP2J2-Tr mice showed significantly decreased plasma triglyceride levels and liver lipid accumulation, improved liver function, reduced inflammatory responses, and less increase in hepatic oxidative stress than wild-type control mice. These effects were associated with inhibition of NF-κB/JNK signaling pathway activation and enhancement of the antioxidant defense system in Tie2-CYP2J2-Tr mice in vivo. We also demonstrated that 14,15-EET treatment protected HepG2 cells against palmitic acid-induced inflammation and oxidative stress. 14,15-EET attenuated palmitic acid-induced changes in NF-κB/JNK signaling pathways, malondialdehyde generation, glutathione levels, reactive oxygen species production, and NADPH oxidase and antioxidant enzyme expression in HepG2 cells in vitro. Together, these results highlight a new role for CYP epoxygenase-derived EETs in lipotoxicity-related inflammation and oxidative stress and reveal a new molecular mechanism underlying EETs-mediated anti-inflammatory and antioxidant effects that could aid in the design of new therapies for the prevention and treatment of NAFLD.
Collapse
Affiliation(s)
- Guangzhi Chen
- Department of Internal Medicine and Gene Therapy Center, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Renfan Xu
- Department of Medical Ultrasound, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China; and
| | - Shasha Zhang
- Department of Internal Medicine and Gene Therapy Center, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Yinna Wang
- Department of Internal Medicine and Gene Therapy Center, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Peihua Wang
- Department of Internal Medicine and Gene Therapy Center, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Matthew L Edin
- Division of Intramural Research, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, North Carolina
| | - Darryl C Zeldin
- Division of Intramural Research, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, North Carolina
| | - Dao Wen Wang
- Department of Internal Medicine and Gene Therapy Center, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China;
| |
Collapse
|
42
|
Schuck RN, Zha W, Edin ML, Gruzdev A, Vendrov KC, Miller TM, Xu Z, Lih FB, DeGraff LM, Tomer KB, Jones HM, Makowski L, Huang L, Poloyac SM, Zeldin DC, Lee CR. The cytochrome P450 epoxygenase pathway regulates the hepatic inflammatory response in fatty liver disease. PLoS One 2014; 9:e110162. [PMID: 25310404 PMCID: PMC4195706 DOI: 10.1371/journal.pone.0110162] [Citation(s) in RCA: 74] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2014] [Accepted: 09/08/2014] [Indexed: 12/15/2022] Open
Abstract
Fatty liver disease is an emerging public health problem without effective therapies, and chronic hepatic inflammation is a key pathologic mediator in its progression. Cytochrome P450 (CYP) epoxygenases metabolize arachidonic acid to biologically active epoxyeicosatrienoic acids (EETs), which have potent anti-inflammatory effects. Although promoting the effects of EETs elicits anti-inflammatory and protective effects in the cardiovascular system, the contribution of CYP-derived EETs to the regulation of fatty liver disease-associated inflammation and injury is unknown. Using the atherogenic diet model of non-alcoholic fatty liver disease/non-alcoholic steatohepatitis (NAFLD/NASH), our studies demonstrated that induction of fatty liver disease significantly and preferentially suppresses hepatic CYP epoxygenase expression and activity, and both hepatic and circulating levels of EETs in mice. Furthermore, mice with targeted disruption of Ephx2 (the gene encoding soluble epoxide hydrolase) exhibited restored hepatic and circulating EET levels and a significantly attenuated induction of hepatic inflammation and injury. Collectively, these data suggest that suppression of hepatic CYP-mediated EET biosynthesis is an important pathological consequence of fatty liver disease-associated inflammation, and that the CYP epoxygenase pathway is a central regulator of the hepatic inflammatory response in NAFLD/NASH. Future studies investigating the utility of therapeutic strategies that promote the effects of CYP-derived EETs in NAFLD/NASH are warranted.
Collapse
Affiliation(s)
- Robert N. Schuck
- Division of Pharmacotherapy and Experimental Therapeutics, Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, North Carolina, United States of America
| | - Weibin Zha
- Division of Pharmacotherapy and Experimental Therapeutics, Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, North Carolina, United States of America
| | - Matthew L. Edin
- Division of Intramural Research, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, North Carolina, United States of America
| | - Artiom Gruzdev
- Division of Intramural Research, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, North Carolina, United States of America
| | - Kimberly C. Vendrov
- Division of Pharmacotherapy and Experimental Therapeutics, Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, North Carolina, United States of America
| | - Tricia M. Miller
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
| | - Zhenghong Xu
- Division of Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, North Carolina, United States of America
| | - Fred B. Lih
- Division of Intramural Research, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, North Carolina, United States of America
| | - Laura M. DeGraff
- Division of Intramural Research, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, North Carolina, United States of America
| | - Kenneth B. Tomer
- Division of Intramural Research, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, North Carolina, United States of America
| | - H. Michael Jones
- Department of Pathology and Laboratory Medicine, School of Medicine, University of North Carolina, Chapel Hill, North Carolina, United States of America
| | - Liza Makowski
- Department of Nutrition, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina, United States of America
| | - Leaf Huang
- Division of Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, North Carolina, United States of America
| | - Samuel M. Poloyac
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
| | - Darryl C. Zeldin
- Division of Intramural Research, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, North Carolina, United States of America
| | - Craig R. Lee
- Division of Pharmacotherapy and Experimental Therapeutics, Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, North Carolina, United States of America
- * E-mail:
| |
Collapse
|
43
|
Abraham NG, Sodhi K, Silvis AM, Vanella L, Favero G, Rezzani R, Lee C, Zeldin DC, Schwartzman ML. CYP2J2 targeting to endothelial cells attenuates adiposity and vascular dysfunction in mice fed a high-fat diet by reprogramming adipocyte phenotype. Hypertension 2014; 64:1352-61. [PMID: 25245389 DOI: 10.1161/hypertensionaha.114.03884] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [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] [Indexed: 12/12/2022]
Abstract
Obesity is a global epidemic and a common risk factor for endothelial dysfunction and the subsequent development of diabetes mellitus and vascular diseases such as hypertension. Epoxyeicosatrienoic acids (EETs) are cytochrome P450 (CYP)-derived metabolites of arachidonic acid that contribute to vascular protection by stimulating vasodilation and inhibiting inflammation. Heme oxygenase-1 is a stress response protein that plays an important cytoprotective role against oxidative insult in diabetes mellitus and cardiovascular disease. We recently demonstrated interplay between EETs and heme oxygenase-1 in the attenuation of adipogenesis. We examined whether adipocyte dysfunction in mice fed a high-fat diet could be prevented by endothelial-specific targeting of the human CYP epoxygenase, CYP2J2. Tie2-CYP2J2 transgenic mice, fed a high-fat diet, had a reduction in body weight gain, blood glucose, insulin levels, and inflammatory markers. Tie2-CYP2J2 gene targeting restored HF-mediated decreases in vascular heme oxygenase-1, Cyp2C44, soluble epoxide hydrolase, phosphorylated endothelial nitric oxide synthase, phosphorylated protein kinase B, and phosphorylated adenosine monophosphate protein kinase protein expression, thus improving vascular function. These changes translated into decreased inflammation and oxidative stress within adipose tissue and decreased peroxisome proliferator-activated receptor-γ, CCAAT/enhancer binding protein alpha, mesoderm-specific transcript, and adipocyte 2 expression and increased uncoupling protein 1 and uncoupling protein 2 expression, reflecting the effect of vascular EET overproduction on adipogenesis. The current study documents a direct link between endothelial-specific EET production and adipogenesis, further implicating the EET-heme oxygenase-1 crosstalk as an important cytoprotective mechanism in the amelioration of vascular and adipocyte dysfunction resulting from diet-induced obesity.
Collapse
Affiliation(s)
- Nader G Abraham
- From the Departments of Medicine and Pharmacology, New York Medical College, Valhalla (N.G.A., M.L.S.); Departments of Medicine and Obstetrics and Gynecology, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV (K.S., A.M.S.); Biochemistry Section and Medicinal Chemistry Section, Department of Drug Sciences, University of Catania, Catania, Italy (L.V.); Department of Clinical and Experimental Sciences, Division of Anatomy and Physiopathology, University of Brescia, Brescia, Italy (G.F., R.R.); Division of Intramural Research, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC (C.L., D.C.Z.).
| | - Komal Sodhi
- From the Departments of Medicine and Pharmacology, New York Medical College, Valhalla (N.G.A., M.L.S.); Departments of Medicine and Obstetrics and Gynecology, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV (K.S., A.M.S.); Biochemistry Section and Medicinal Chemistry Section, Department of Drug Sciences, University of Catania, Catania, Italy (L.V.); Department of Clinical and Experimental Sciences, Division of Anatomy and Physiopathology, University of Brescia, Brescia, Italy (G.F., R.R.); Division of Intramural Research, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC (C.L., D.C.Z.)
| | - Anne M Silvis
- From the Departments of Medicine and Pharmacology, New York Medical College, Valhalla (N.G.A., M.L.S.); Departments of Medicine and Obstetrics and Gynecology, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV (K.S., A.M.S.); Biochemistry Section and Medicinal Chemistry Section, Department of Drug Sciences, University of Catania, Catania, Italy (L.V.); Department of Clinical and Experimental Sciences, Division of Anatomy and Physiopathology, University of Brescia, Brescia, Italy (G.F., R.R.); Division of Intramural Research, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC (C.L., D.C.Z.)
| | - Luca Vanella
- From the Departments of Medicine and Pharmacology, New York Medical College, Valhalla (N.G.A., M.L.S.); Departments of Medicine and Obstetrics and Gynecology, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV (K.S., A.M.S.); Biochemistry Section and Medicinal Chemistry Section, Department of Drug Sciences, University of Catania, Catania, Italy (L.V.); Department of Clinical and Experimental Sciences, Division of Anatomy and Physiopathology, University of Brescia, Brescia, Italy (G.F., R.R.); Division of Intramural Research, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC (C.L., D.C.Z.)
| | - Gaia Favero
- From the Departments of Medicine and Pharmacology, New York Medical College, Valhalla (N.G.A., M.L.S.); Departments of Medicine and Obstetrics and Gynecology, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV (K.S., A.M.S.); Biochemistry Section and Medicinal Chemistry Section, Department of Drug Sciences, University of Catania, Catania, Italy (L.V.); Department of Clinical and Experimental Sciences, Division of Anatomy and Physiopathology, University of Brescia, Brescia, Italy (G.F., R.R.); Division of Intramural Research, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC (C.L., D.C.Z.)
| | - Rita Rezzani
- From the Departments of Medicine and Pharmacology, New York Medical College, Valhalla (N.G.A., M.L.S.); Departments of Medicine and Obstetrics and Gynecology, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV (K.S., A.M.S.); Biochemistry Section and Medicinal Chemistry Section, Department of Drug Sciences, University of Catania, Catania, Italy (L.V.); Department of Clinical and Experimental Sciences, Division of Anatomy and Physiopathology, University of Brescia, Brescia, Italy (G.F., R.R.); Division of Intramural Research, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC (C.L., D.C.Z.)
| | - Craig Lee
- From the Departments of Medicine and Pharmacology, New York Medical College, Valhalla (N.G.A., M.L.S.); Departments of Medicine and Obstetrics and Gynecology, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV (K.S., A.M.S.); Biochemistry Section and Medicinal Chemistry Section, Department of Drug Sciences, University of Catania, Catania, Italy (L.V.); Department of Clinical and Experimental Sciences, Division of Anatomy and Physiopathology, University of Brescia, Brescia, Italy (G.F., R.R.); Division of Intramural Research, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC (C.L., D.C.Z.)
| | - Darryl C Zeldin
- From the Departments of Medicine and Pharmacology, New York Medical College, Valhalla (N.G.A., M.L.S.); Departments of Medicine and Obstetrics and Gynecology, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV (K.S., A.M.S.); Biochemistry Section and Medicinal Chemistry Section, Department of Drug Sciences, University of Catania, Catania, Italy (L.V.); Department of Clinical and Experimental Sciences, Division of Anatomy and Physiopathology, University of Brescia, Brescia, Italy (G.F., R.R.); Division of Intramural Research, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC (C.L., D.C.Z.)
| | - Michal L Schwartzman
- From the Departments of Medicine and Pharmacology, New York Medical College, Valhalla (N.G.A., M.L.S.); Departments of Medicine and Obstetrics and Gynecology, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV (K.S., A.M.S.); Biochemistry Section and Medicinal Chemistry Section, Department of Drug Sciences, University of Catania, Catania, Italy (L.V.); Department of Clinical and Experimental Sciences, Division of Anatomy and Physiopathology, University of Brescia, Brescia, Italy (G.F., R.R.); Division of Intramural Research, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC (C.L., D.C.Z.)
| |
Collapse
|
44
|
Narjoz C, Favre A, McMullen J, Kiehl P, Montemurro M, Figg WD, Beaune P, de Waziers I, Rochat B. Important role of CYP2J2 in protein kinase inhibitor degradation: a possible role in intratumor drug disposition and resistance. PLoS One 2014; 9:e95532. [PMID: 24819355 PMCID: PMC4018390 DOI: 10.1371/journal.pone.0095532] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2014] [Accepted: 03/27/2014] [Indexed: 12/03/2022] Open
Abstract
We have investigated in vitro the metabolic capability of 3 extrahepatic cytochromes P-450, CYP1A1, 1B1 and 2J2, known to be over-expressed in various tumors, to biotransform 5 tyrosine kinase inhibitors (TKI): dasatinib, imatinib, nilotinib, sorafenib and sunitinib. Moreover, mRNA expression of CYP1A1, 1B1, 2J2 and 3A4 in 6 hepatocellular and 14 renal cell carcinoma tumor tissues and their surrounding healthy tissues, was determined. Our results show that CYP1A1, 1B1 and especially 2J2 can rapidly biotransform the studied TKIs with a metabolic efficiency similar to that of CYP3A4. The mRNA expression of CYP1A1, 1B1, 2J2 and 3A4 in tumor biopsies has shown i) the strong variability of CYP expression and ii) distinct outliers showing high expression levels (esp. CYP2J2) that are compatible with high intratumoral CYP activity and tumor-specific TKI degradation. CYP2J2 inhibition could be a novel clinical strategy to specifically increase the intratumoral rather than plasma TKI levels, improving TKI efficacy and extending the duration before relapse. Such an approach would be akin to beta-lactamase inhibition, a classical strategy to avoid antibiotic degradation and resistance.
Collapse
Affiliation(s)
- Céline Narjoz
- Université Paris Descartes, INSERM UMR S-U775, Sorbonne Paris Cité, Paris, France
- Hôpital Européen Georges Pompidou, Service de Biochimie, Unité Fonctionnelle de Pharmacogénétique et Oncologie Moléculaire, Paris, France
| | - Amélie Favre
- Quantitative Mass Spectrometry Facility, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
| | - Justin McMullen
- Quantitative Mass Spectrometry Facility, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
| | - Philippe Kiehl
- Quantitative Mass Spectrometry Facility, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
| | | | - William D. Figg
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Philippe Beaune
- Université Paris Descartes, INSERM UMR S-U775, Sorbonne Paris Cité, Paris, France
- Hôpital Européen Georges Pompidou, Service de Biochimie, Unité Fonctionnelle de Pharmacogénétique et Oncologie Moléculaire, Paris, France
| | - Isabelle de Waziers
- Université Paris Descartes, INSERM UMR S-U775, Sorbonne Paris Cité, Paris, France
| | - Bertrand Rochat
- Quantitative Mass Spectrometry Facility, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
- * E-mail:
| |
Collapse
|
45
|
Wang L, Liu Y, Wang H, Liu X, Chen J, Wang MH, Wang J, Huang H. Epoxyeicosatrienoic acids attenuating hypotonic-induced apoptosis of IMCD cells via γ-ENaC inhibition. PLoS One 2014; 9:e94400. [PMID: 24713619 PMCID: PMC3979856 DOI: 10.1371/journal.pone.0094400] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2014] [Accepted: 03/13/2014] [Indexed: 12/18/2022] Open
Abstract
Inner medulla collecting duct (IMCD) cells are the key part for urinary concentration. Hypotonic stress may trigger apoptosis of IMCD cells and induce renal injury. Epoxyeicosatrienoic acids (EETs) play an important role in anti-apoptosis, but their roles in hypotonic-induced apoptosis of IMCD cells are still unclear. Here we found increasing exogenous 11, 12-EET or endogenous EETs with Ad-CMV-CYP2C23-EGFP transfection decreased apoptosis of IMCD cells induced by hypotonic stress. Moreover, up-regulation of γ-ENaC induced by hypotonic stress was abolished by elevation of exogenous or endogenous EETs. Collectively, this study illustrated that EETs attenuated hypotonic-induced apoptosis of IMCD cells, and that regulation of γ-ENAC may be a possible mechanism contributing to the anti-apoptotic effect of EETs in response to hypotonic stress.
Collapse
Affiliation(s)
- Luyun Wang
- Guangdong Province Key Laboratory of Arrhythmia and Electrophysiology, Guangzhou, China
- Department of Critical Care Medicine, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, China
| | - Yang Liu
- Guangdong Province Key Laboratory of Arrhythmia and Electrophysiology, Guangzhou, China
- Department of Cardiology, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, China
| | - Huamin Wang
- Zhongshan City Hospital of Chinese Medicine,Affiliated Hospital of Guangzhou University of Chinese Medicine, Zhongshan, China
| | - Xun Liu
- Division of Nephrology, Department of Internal Medicine, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Jie Chen
- Guangdong Province Key Laboratory of Arrhythmia and Electrophysiology, Guangzhou, China
- Radiotherapy Department, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, China
| | - Mong-Heng Wang
- Department of Physiology, Georgia Regents University, Augusta, Georgia, United States of America
| | - Jingfeng Wang
- Guangdong Province Key Laboratory of Arrhythmia and Electrophysiology, Guangzhou, China
- Department of Cardiology, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, China
| | - Hui Huang
- Guangdong Province Key Laboratory of Arrhythmia and Electrophysiology, Guangzhou, China
- Department of Cardiology, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, China
- * E-mail:
| |
Collapse
|
46
|
Cizkova K, Konieczna A, Erdosova B, Ehrmann J. Time-dependent expression of cytochrome p450 epoxygenases during human prenatal development. Organogenesis 2014; 10:53-61. [PMID: 24492490 PMCID: PMC4049895 DOI: 10.4161/org.27911] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2013] [Revised: 01/08/2014] [Accepted: 01/19/2014] [Indexed: 11/19/2022] Open
Abstract
There is growing evidence that some members of cytochrome P450 enzymes contribute to regulation of normal prenatal development. CYP epoxygenases (CYP2C and CYP2J subfamilies) convert arachidonic acid into four regioisomeric epoxyeicosatrienoic acids (EETs), biologically active molecules involved in mitogenesis and cell signaling. Almost nothing is known about localization of their expression in tissues during human prenatal development. The spatio-temporal expression pattern of CYP2C8, CYP2C9, CYP2C19 and CYP2J2 in human embryonic/fetal intestines, liver, and kidney was investigated by immunohistochemical method. CYP epoxygenases are expressed already in early stages of development in these embryonic/fetal tissues (as early as 7th week of IUD in the intestines, 5th week of IUD in the liver, and 6th week of IUD in the kidney). In kidney, CYP epoxygenases are expressed in the metanephrogenic blastema (but not in the uninduced mesenchyme) and in the tubular system. In the intestines, diverse CYP epoxygenases distribution along crypt-villus axis could suggest role in cell differentiation. Moreover, we detected higher CYP2J2 level in these organs than in adult tissue samples.
Collapse
Affiliation(s)
- Katerina Cizkova
- Department of Histology and Embryology; Palacky University; Olomouc, Czech Republic
| | - Anna Konieczna
- Department of Histology and Embryology; Palacky University; Olomouc, Czech Republic
| | - Bela Erdosova
- Department of Histology and Embryology; Palacky University; Olomouc, Czech Republic
| | - Jiri Ehrmann
- Department of Histology and Embryology; Palacky University; Olomouc, Czech Republic
- Department of Clinical and Molecular Pathology & Laboratory of Molecular Pathology; Palacky University; Olomouc, Czech Republic
| |
Collapse
|
47
|
Bystrom J, Thomson SJ, Johansson J, Edin ML, Zeldin DC, Gilroy DW, Smith AM, Bishop-Bailey D. Inducible CYP2J2 and its product 11,12-EET promotes bacterial phagocytosis: a role for CYP2J2 deficiency in the pathogenesis of Crohn's disease? PLoS One 2013; 8:e75107. [PMID: 24058654 PMCID: PMC3772848 DOI: 10.1371/journal.pone.0075107] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2013] [Accepted: 08/09/2013] [Indexed: 12/19/2022] Open
Abstract
The epoxygenase CYP2J2 has an emerging role in inflammation and vascular biology. The role of CYP2J2 in phagocytosis is not known and its regulation in human inflammatory diseases is poorly understood. Here we investigated the role of CYP2J2 in bacterial phagocytosis and its expression in monocytes from healthy controls and Crohns disease patients. CYP2J2 is anti-inflammatory in human peripheral blood monocytes. Bacterial LPS induced CYP2J2 mRNA and protein. The CYP2J2 arachidonic acid products 11,12-EET and 14,15-EET inhibited LPS induced TNFα release. THP-1 monocytes were transformed into macrophages by 48h incubation with phorbol 12-myristate 13-acetate. Epoxygenase inhibition using a non-selective inhibitor SKF525A or a selective CYP2J2 inhibitor Compound 4, inhibited E. coli particle phagocytosis, which could be specifically reversed by 11,12-EET. Moreover, epoxygenase inhibition reduced the expression of phagocytosis receptors CD11b and CD68. CD11b also mediates L. monocytogenes phagocytosis. Similar, to E. coli bioparticle phagocytosis, epoxygenase inhibition also reduced intracellular levels of L. monocytogenes, which could be reversed by co-incubation with 11,12-EET. Disrupted bacterial clearance is a hallmark of Crohn’s disease. Unlike macrophages from control donors, macrophages from Crohn’s disease patients showed no induction of CYP2J2 in response to E. coli. These results demonstrate that CYP2J2 mediates bacterial phagocytosis in macrophages, and implicates a defect in the CYP2J2 pathway may regulate bacterial clearance in Crohn’s disease.
Collapse
MESH Headings
- 8,11,14-Eicosatrienoic Acid/analogs & derivatives
- 8,11,14-Eicosatrienoic Acid/metabolism
- Antigens, CD/biosynthesis
- Antigens, CD/genetics
- Antigens, Differentiation, Myelomonocytic/biosynthesis
- Antigens, Differentiation, Myelomonocytic/genetics
- CD11b Antigen/biosynthesis
- CD11b Antigen/genetics
- Cell Line
- Crohn Disease/genetics
- Crohn Disease/metabolism
- Crohn Disease/microbiology
- Crohn Disease/pathology
- Cytochrome P-450 CYP2J2
- Cytochrome P-450 Enzyme System/biosynthesis
- Cytochrome P-450 Enzyme System/genetics
- Enzyme Induction/drug effects
- Escherichia coli/metabolism
- Female
- Humans
- Lipopolysaccharides/pharmacology
- Macrophages/enzymology
- Macrophages/microbiology
- Macrophages/pathology
- Male
- Monocytes/enzymology
- Monocytes/microbiology
- Monocytes/pathology
- Phagocytosis
Collapse
Affiliation(s)
- Jonas Bystrom
- William Harvey Research Institute, Queen Mary University, London, United Kingdom
| | - Scott J. Thomson
- Comparative Biomedical Sciences, Royal Veterinary College, London, United Kingdom
| | | | - Matthew L. Edin
- Division of Intramural Research, National Institute of Environmental Health Sciences/National Institutes of Health, Research Triangle Park, North Carolina, United States of America
| | - Darryl C. Zeldin
- Division of Intramural Research, National Institute of Environmental Health Sciences/National Institutes of Health, Research Triangle Park, North Carolina, United States of America
| | - Derek W. Gilroy
- Department of Medicine, University College London, London, United Kingdom
| | - Andrew M. Smith
- Department of Medicine, University College London, London, United Kingdom
| | - David Bishop-Bailey
- Comparative Biomedical Sciences, Royal Veterinary College, London, United Kingdom
- * E-mail:
| |
Collapse
|
48
|
Westphal C, Spallek B, Konkel A, Marko L, Qadri F, DeGraff LM, Schubert C, Bradbury JA, Regitz-Zagrosek V, Falck JR, Zeldin DC, Müller DN, Schunck WH, Fischer R. CYP2J2 overexpression protects against arrhythmia susceptibility in cardiac hypertrophy. PLoS One 2013; 8:e73490. [PMID: 24023684 PMCID: PMC3758319 DOI: 10.1371/journal.pone.0073490] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2012] [Accepted: 07/29/2013] [Indexed: 01/04/2023] Open
Abstract
Maladaptive cardiac hypertrophy predisposes one to arrhythmia and sudden death. Cytochrome P450 (CYP)-derived epoxyeicosatrienoic acids (EETs) promote anti-inflammatory and antiapoptotic mechanisms, and are involved in the regulation of cardiac Ca(2+)-, K(+)- and Na(+)-channels. To test the hypothesis that enhanced cardiac EET biosynthesis counteracts hypertrophy-induced electrical remodeling, male transgenic mice with cardiomyocyte-specific overexpression of the human epoxygenase CYP2J2 (CYP2J2-TG) and wildtype littermates (WT) were subjected to chronic pressure overload (transverse aortic constriction, TAC) or β-adrenergic stimulation (isoproterenol infusion, ISO). TAC caused progressive mortality that was higher in WT (42% over 8 weeks after TAC), compared to CYP2J2-TG mice (6%). In vivo electrophysiological studies, 4 weeks after TAC, revealed high ventricular tachyarrhythmia inducibility in WT (47% of the stimulation protocols), but not in CYP2J2-TG mice (0%). CYP2J2 overexpression also enhanced ventricular refractoriness and protected against TAC-induced QRS prolongation and delocalization of left ventricular connexin-43. ISO for 14 days induced high vulnerability for atrial fibrillation in WT mice (54%) that was reduced in CYP-TG mice (17%). CYP2J2 overexpression also protected against ISO-induced reduction of atrial refractoriness and development of atrial fibrosis. In contrast to these profound effects on electrical remodeling, CYP2J2 overexpression only moderately reduced TAC-induced cardiac hypertrophy and did not affect the hypertrophic response to β-adrenergic stimulation. These results demonstrate that enhanced cardiac EET biosynthesis protects against electrical remodeling, ventricular tachyarrhythmia, and atrial fibrillation susceptibility during maladaptive cardiac hypertrophy.
Collapse
Affiliation(s)
| | - Bastian Spallek
- Experimental and Clinical Research Center, a joint cooperation between the Charité Universitätsmedizin and the MDC, Berlin, Germany
| | - Anne Konkel
- Max-Delbrueck Center for Molecular Medicine, Berlin, Germany
| | - Lajos Marko
- Experimental and Clinical Research Center, a joint cooperation between the Charité Universitätsmedizin and the MDC, Berlin, Germany
| | - Fatimunnisa Qadri
- Experimental and Clinical Research Center, a joint cooperation between the Charité Universitätsmedizin and the MDC, Berlin, Germany
| | - Laura M. DeGraff
- National Institute of Environmental Health Sciences, NIH, Research Triangle Park, North Carolina, United States of America
| | - Carola Schubert
- Institute of Gender in Medicine, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - J. Alyce Bradbury
- National Institute of Environmental Health Sciences, NIH, Research Triangle Park, North Carolina, United States of America
| | - Vera Regitz-Zagrosek
- Institute of Gender in Medicine, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - John R. Falck
- University of Texas Southwestern Medical Center, Dallas, United States of America
| | - Darryl C. Zeldin
- National Institute of Environmental Health Sciences, NIH, Research Triangle Park, North Carolina, United States of America
| | - Dominik N. Müller
- Max-Delbrueck Center for Molecular Medicine, Berlin, Germany
- Experimental and Clinical Research Center, a joint cooperation between the Charité Universitätsmedizin and the MDC, Berlin, Germany
- Department of Experimental Medicine I, Nikolaus-Fiebiger-Center for Molecular Medicine, Friedrich-Alexander-University Erlangen-Nürnberg, Germany
| | | | - Robert Fischer
- Clinic for Cardiology and Pulmonology, Charité Universitätsmedizin Berlin, Berlin, Germany
| |
Collapse
|
49
|
Ma B, Xiong X, Chen C, Li H, Xu X, Li X, Li R, Chen G, Dackor RT, Zeldin DC, Wang DW. Cardiac-specific overexpression of CYP2J2 attenuates diabetic cardiomyopathy in male streptozotocin-induced diabetic mice. Endocrinology 2013; 154:2843-56. [PMID: 23696562 PMCID: PMC3713213 DOI: 10.1210/en.2012-2166] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Cytochrome P450 (CYP) epoxygenases metabolize arachidonic acid to biologically active cis-epoxyeicosatrienoic acids, which have potent vasodilatory, antiinflammatory, antiapoptotic, and antidiabetes properties. Here, we showed the effects of cardiac-specific overexpression of CYP epoxygenase 2J2 (CYP2J2) on diabetic cardiomyopathy and insulin resistance in high-fat (HF) diet fed, low-dose streptozotocin-treated mice. Diabetic cardiomyopathy was induced by HF and streptozotocin in cardiac-specific CYP2J2 transgenic mice. Physiological parameters and systemic metabolic parameters were monitored using ELISA kits. Intraperitoneal injection glucose tolerance test and hyperinsulinemic-euglycemic clamp study were implied to indicate insulin resistance. Cardiac function was assessed by echocardiography and Millar catheter system. Real-time PCR and Western blotting were used in signal pathway detection. αMHC-CYP2J2 transgenic mice showed significantly lower plasma glucose and insulin levels, improved glucose tolerance, and increased cardiac glucose uptake. Furthermore, αMHC-CYP2J2 transgenic mice were significantly protected from HF-streptozotocin-induced diabetic cardiomyopathy. Strikingly, CYP2J2 overexpression attenuated myocardial hypertrophy induced by diabetes. We conclude that cardiac-specific overexpression of CYP2J2 significantly protects against diabetic cardiomyopathy, which may be due to improved cardiac insulin resistance, glucose uptake, and reversal of cardiac hypertrophy. Relevant mechanisms may include up-regulation of peroxisome proliferator-activated receptor γ, activation of insulin receptor and AMP-activated protein kinase signaling pathways, and inhibition of nuclear factor of activated T cells c3 signal by enhanced atrial natriuretic peptide production. These results suggest that CYP2J2 epoxygenase metabolites likely play an important role in plasma glucose homeostasis, and enhancement of epoxyeicosatrienoic acids activation may serve as an effective therapeutic strategy to prevent diabetic cardiomyopathy.
Collapse
Affiliation(s)
- Ben Ma
- The Institute of Hypertension and Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, People’s Republic of China
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
50
|
Anisimova SI, Donchenko HV, Parkhomenko IM, Kovalenko VM. [Mechanism of hepatoprotective action of methionine and composition "Metovitan" against a background of antituberculosis drug administration to rats]. Ukr Biokhim Zh (1999) 2013; 85:59-67. [PMID: 23808311 DOI: 10.15407/ubj85.02.059] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Oral administration of antituberculosis drugs to rats for 60 days in doses that are equivalent to clinical ones, causes changes in mRNA levels expression of liver cytochrome P-450 isoforms CYP3A2, CYP2C23, CYP2E1 and pro- and antioxidant state. Experimental composition "Metovitan" given with anti-TB drugs provided a correction of these abnormalities, that is evidenced by modulation of the level of CYP3A2, CYP2C23, CYP2E1 gene expression and antioxidant activity, inhibition of lipid peroxidation. "Metovitan" normalizes the enzymatic activity and content of total billirubin in the blood serum, shows high hepatoprotective properties, exceeding the efficiency of methionine.
Collapse
|