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Chen Z, Sun X, Li X, Liu N. Oleoylethanolamide alleviates hyperlipidaemia-mediated vascular calcification via attenuating mitochondrial DNA stress triggered autophagy-dependent ferroptosis by activating PPARα. Biochem Pharmacol 2023; 208:115379. [PMID: 36525991 DOI: 10.1016/j.bcp.2022.115379] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Revised: 12/04/2022] [Accepted: 12/07/2022] [Indexed: 12/15/2022]
Abstract
Vascular calcification, a prevalent pathological alteration in metabolic syndromes, is tightly related with cardiometabolic risk events. Ferroptosis, a newly iron-dependent programmed cell death, induced by palmitic acid (PA), the major saturated free fatty acid in hyperlipidemia, is a vital mechanism of vascular calcification. Recent studies reported that ferroptosis is a distinctive type of cell death dependent on autophagy, with the lipotoxicity of PA on cell viability being closely linked with autophagy. Oleoylethanolamide (OEA), an endogenous bioactive mediator of lipid homeostasis, exerts vascular protection against intimal calcification, atherosclerosis; however, its beneficial effect on vascular smooth muscle cell (VSMC)-associated medial calcification has not been investigated. Our aim was to characterize the effect of OEA on vascular calcification and ferroptosis of VSMCs under hyperlipidaemia/PA exposure. In vivo, vascular calcification model was induced in rats by high-fat diet and vitamin D3 plus nicotine; in vitro, VSMCs ferroptosis was induced by PA or plus β-glycerophosphate mimicking vascular calcification. The calcium deposition in hyperlipidaemia-mediated rat thoracic aortas, the PA-induced ferroptosis and subsequent calcium deposition in VSMCs, were suppressed by OEA treatment. Additionally, CGAS-STING1-induced ferritinophagy, the main molecular mechanism of PA-triggered ferroptosis of VSMCs, was activated by mitochondrial DNA damage; however, early administration of OEA alleviated these phenomena. Intriguingly, overexpression of peroxisome proliferator activated receptor alpha (PPARα) contributed to a decrease in PA-induced ferroptosis, whereas PPARɑ knockdown inhibited the OEA-mediated anti-ferroptotic effects. Collectively, our study demonstrated that OEA serves as a prospective candidate for the prevention and treatment of vascular calcification in metabolic abnormality syndromes.
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Affiliation(s)
- Zhengdong Chen
- Department of Cardiology, Zhongda Hospital, Southeast University, 87 Dingjiaqiao, Nanjing, 210009, PR China
| | - Xuejiao Sun
- Department of Cardiology, Zhongda Hospital, Southeast University, 87 Dingjiaqiao, Nanjing, 210009, PR China
| | - Xiaoxue Li
- Department of Cardiology, Zhongda Hospital, Southeast University, 87 Dingjiaqiao, Nanjing, 210009, PR China
| | - Naifeng Liu
- Department of Cardiology, Zhongda Hospital, Southeast University, 87 Dingjiaqiao, Nanjing, 210009, PR China.
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Vandewalle J, Garcia B, Timmermans S, Vanderhaeghen T, Van Wyngene L, Eggermont M, Dufoor H, Van Dender C, Halimi F, Croubels S, Herpain A, Libert C. Hepatic Peroxisome Proliferator-Activated Receptor Alpha Dysfunction in Porcine Septic Shock. Cells 2022; 11:cells11244080. [PMID: 36552845 PMCID: PMC9777423 DOI: 10.3390/cells11244080] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 12/09/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022] Open
Abstract
Despite decades of research, sepsis remains one of the most urgent unmet medical needs. Mechanistic investigations into sepsis have mainly focused on targeting inflammatory pathways; however, recent data indicate that sepsis should also be seen as a metabolic disease. Targeting metabolic dysregulations that take place in sepsis might uncover novel therapeutic opportunities. The role of peroxisome proliferator-activated receptor alpha (PPARɑ) in liver dysfunction during sepsis has recently been described, and restoring PPARɑ signaling has proven to be successful in mouse polymicrobial sepsis. To confirm that such therapy might be translated to septic patients, we analyzed metabolic perturbations in the liver of a porcine fecal peritonitis model. Resuscitation with fluids, vasopressor, antimicrobial therapy and abdominal lavage were applied to the pigs in order to mimic human clinical care. By using RNA-seq, we detected downregulated PPARɑ signaling in the livers of septic pigs and that reduced PPARɑ levels correlated well with disease severity. As PPARɑ regulates the expression of many genes involved in fatty acid oxidation, the reduced expression of these target genes, concomitant with increased free fatty acids in plasma and ectopic lipid deposition in the liver, was observed. The results obtained with pigs are in agreement with earlier observations seen in mice and support the potential of targeting defective PPARɑ signaling in clinical research.
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Affiliation(s)
- Jolien Vandewalle
- VIB Center for Inflammation Research, VIB, 9052 Ghent, Belgium
- Department for Biomedical Molecular Biology, Faculty of Sciences, Ghent University, 9052 Ghent, Belgium
- Correspondence: (J.V.); (C.L.)
| | - Bruno Garcia
- Experimental Laboratory of Intensive Care, Université Libre de Bruxelles, 1050 Brussels, Belgium
- Department of Intensive Care, Centre Hospitalier Universitaire de Lille, 59000 Lille, France
| | - Steven Timmermans
- VIB Center for Inflammation Research, VIB, 9052 Ghent, Belgium
- Department for Biomedical Molecular Biology, Faculty of Sciences, Ghent University, 9052 Ghent, Belgium
| | - Tineke Vanderhaeghen
- VIB Center for Inflammation Research, VIB, 9052 Ghent, Belgium
- Department for Biomedical Molecular Biology, Faculty of Sciences, Ghent University, 9052 Ghent, Belgium
| | - Lise Van Wyngene
- VIB Center for Inflammation Research, VIB, 9052 Ghent, Belgium
- Department for Biomedical Molecular Biology, Faculty of Sciences, Ghent University, 9052 Ghent, Belgium
| | - Melanie Eggermont
- VIB Center for Inflammation Research, VIB, 9052 Ghent, Belgium
- Department for Biomedical Molecular Biology, Faculty of Sciences, Ghent University, 9052 Ghent, Belgium
| | - Hester Dufoor
- VIB Center for Inflammation Research, VIB, 9052 Ghent, Belgium
- Department for Biomedical Molecular Biology, Faculty of Sciences, Ghent University, 9052 Ghent, Belgium
| | - Céline Van Dender
- VIB Center for Inflammation Research, VIB, 9052 Ghent, Belgium
- Department for Biomedical Molecular Biology, Faculty of Sciences, Ghent University, 9052 Ghent, Belgium
| | - Fëllanza Halimi
- Department of Pathobiology, Pharmacology and Zoological Medicine, Faculty of Veterinary Medicine, Ghent University, 9820 Merelbeke, Belgium
| | - Siska Croubels
- Department of Pathobiology, Pharmacology and Zoological Medicine, Faculty of Veterinary Medicine, Ghent University, 9820 Merelbeke, Belgium
| | - Antoine Herpain
- Experimental Laboratory of Intensive Care, Université Libre de Bruxelles, 1050 Brussels, Belgium
- Department of Intensive Care, Erasme University Hospital—HUB, Université Libre de Bruxelles, 1050 Brussels, Belgium
- Department of Intensive Care, St.-Pierre University Hospital, Université Libre de Bruxelles, 1050 Brussels, Belgium
| | - Claude Libert
- VIB Center for Inflammation Research, VIB, 9052 Ghent, Belgium
- Department for Biomedical Molecular Biology, Faculty of Sciences, Ghent University, 9052 Ghent, Belgium
- Correspondence: (J.V.); (C.L.)
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Nakashima KI, Higuchi Y, Tomida J, Kawamura Y, Inoue M. Two new ɑ-pyrone derivatives from the endophytic Diaporthe sp. ECN371. J Nat Med 2022; 76:462-467. [PMID: 34981405 DOI: 10.1007/s11418-021-01586-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 11/14/2021] [Indexed: 11/27/2022]
Abstract
Diaportholides A (1) and B (2), two polyketides with ɑ-pyrone moieties, were isolated from the cultures of an endophytic Diaporthe sp. ECN371 isolated from Orixa japonica, together with four known polyketides, phomopsolide B (3), phomopsolidones A (4) and B (5), and 5-[(1R)-1-hydroxyethyl]-γ-oxo-2-furanbutanoic acid (6). The structures of 1 and 2 were determined by extensive analysis of NMR and MS spectroscopic data. Furthermore, the structure of 2 was confirmed by analyzing the single-crystal X-ray diffraction data. The luciferase reporter gene assay revealed that among all isolated compounds (1-6), 3, a known ɑ-pyrone derivative, exhibited agonistic activity against the peroxisome proliferator-activated receptor ɑ, which is an important regulator of lipid metabolism in humans.
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Affiliation(s)
- Ken-Ichi Nakashima
- Laboratory of Medicinal Resources, School of Pharmacy, Aichi Gakuin University, 1-100 Kusumoto-cho, Chikusa-ku, Nagoya, Aichi, 464-8650, Japan.
| | - Yuka Higuchi
- Laboratory of Medicinal Resources, School of Pharmacy, Aichi Gakuin University, 1-100 Kusumoto-cho, Chikusa-ku, Nagoya, Aichi, 464-8650, Japan
| | - Junko Tomida
- Department of Microbiology, School of Pharmacy, Aichi Gakuin University, 1-100 Kusumoto-cho, Chikusa-ku, Nagoya, Aichi, 464-8650, Japan
| | - Yoshiaki Kawamura
- Department of Microbiology, School of Pharmacy, Aichi Gakuin University, 1-100 Kusumoto-cho, Chikusa-ku, Nagoya, Aichi, 464-8650, Japan
| | - Makoto Inoue
- Laboratory of Medicinal Resources, School of Pharmacy, Aichi Gakuin University, 1-100 Kusumoto-cho, Chikusa-ku, Nagoya, Aichi, 464-8650, Japan
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Jin X, Xue B, Ahmed RZ, Ding G, Li Z. Fine particles cause the abnormality of cardiac ATP levels via PPARɑ-mediated utilization of fatty acid and glucose using in vivo and in vitro models. Environ Pollut 2019; 249:286-294. [PMID: 30897468 DOI: 10.1016/j.envpol.2019.02.083] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2018] [Revised: 02/22/2019] [Accepted: 02/23/2019] [Indexed: 05/05/2023]
Abstract
Ambient fine particle (PM2.5) is one of the potential risk factors for the cardiovascular disease, which is characterized by a marked shift in energy substrate preference leading to the reduction of adenosine triphosphate (ATP) synthesis. The metabolic adaptation is brought about by alterations in substrate transporters. Hence, this study aimed to investigate the effects and possible mechanisms of seasonal PM2.5 exposure on alteration of cardiac ATP content. Sprague Dawley (SD) rats were exposed to summer and winter PM2.5 for two months to generate a cardiac damage phenotype, characterized by apoptosis, lipid peroxidation, and ATP depletion. Reduced fatty acid content and elevated glucose content were observed in haze dose PM2.5-exposed SD rats and rat cardiomyocyte cells. Expressions of their transporters in PM2.5-treated groups exhibited the homologous trends. Moreover, PM2.5 exposure repressed the expression and translocation of peroxisome proliferator-activated receptor alpha (PPARα) in a dose-dependent manner. However, the addition of WY-14643 (an inhibitor of PPARα) prominently alleviated the above phenomenons. The effect of PM2.5 in winter was found to be more serious than in summer. These results demonstrated that seasonal PM2.5 exposure causes the abnormality of cardiac ATP generation through the regulation of PPARα-mediated selection and utilization of energy substrates and their transporters. This study contributes in better understanding of haze-induced cardiovascular disease by revealing crucial indicators involved in this phenomenon.
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Affiliation(s)
- Xiaoting Jin
- Institutes of Biomedical Sciences, Shanxi University, Taiyuan, China
| | - Bin Xue
- Institutes of Biomedical Sciences, Shanxi University, Taiyuan, China; Institute of Biotechnology, Key Laboratory of Chemical Biology and Molecular Engineering of National Ministry of Education, Shanxi University, Taiyuan, China
| | - Rifat Zubair Ahmed
- Dept. of Genetics, University of Karachi, Karachi, Pakistan; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China
| | - Guobin Ding
- Institute of Biotechnology, Key Laboratory of Chemical Biology and Molecular Engineering of National Ministry of Education, Shanxi University, Taiyuan, China
| | - Zhuoyu Li
- Institute of Biotechnology, Key Laboratory of Chemical Biology and Molecular Engineering of National Ministry of Education, Shanxi University, Taiyuan, China; School of Life Science, Shanxi University, Taiyuan, 030006, China.
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Luo D, Zhang Y, Yuan X, Pan Y, Yang L, Zhao Y, Zhuo R, Chen C, Peng L, Li W, Jin X, Zhou Y. Oleoylethanolamide inhibits glial activation via moudulating PPARα and promotes motor function recovery after brain ischemia. Pharmacol Res 2019; 141:530-540. [PMID: 30660821 DOI: 10.1016/j.phrs.2019.01.027] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [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: 09/30/2018] [Revised: 12/29/2018] [Accepted: 01/14/2019] [Indexed: 02/06/2023]
Abstract
Glial activation and scar formation impede the neurological function recovery after cerebral ischemia. Oleoylethanolamide (OEA), a bioactive lipid mediator, shows neuroprotection against acute brain ischemia, however, its long-term effect, especially on glial scar formation, has not been characterized. In this research, we investigate the effect of OEA on glial activation and scar formation after cerebral ischemia in vitro and in vivo experiments. Glial scar formation in vitro model was induced by transforming growth factor β1 (TGF-β1) in C6 glial cell culture, and experiment model in vivo was induced by middle cerebral artery occlusion (MCAO) in mice. The protein expressions of the markers of glial activation (S100β, GFAP, or pSmads) and glial scar (neurocan) were detected by Western blot and/or immunofluorescence staining; To evaluate the role of PPARɑ in the effect of OEA on glial activation, the PPARɑ antagonist GW6471 was used. Behavior tests were used to assay the effect of OEA on motor function recovery 14 days after brain ischemia in mice. Our results show that OEA (10-50 μM) concentration-dependently inhibited the upregulation of S100β, GFAP, pSmads and neurocan induced by TGF-β1 in C6 glial cells. At the same time, OEA promoted the protein expression and nuclear transportation of PPARɑ in glial cells. PPARα antagonist GW6471 abolished the effect of OEA on glial activation. In addition, we found that delay administration of OEA inhibited the astrocyte activation and promoted the recovery of motor function after brain ischemia in mice. These results indicate that OEA may be developed into a new candidate for attenuating astrocytic scar formation and improving motor function after ischemic stroke.
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Affiliation(s)
- Doudou Luo
- Department of Basic Medical Science, School of Medicine, Xiamen University, Xiamen, 361102, PR China; Key Laboratory of Chiral Drugs, Xiamen, 361102, PR China
| | - Yali Zhang
- Department of Basic Medical Science, School of Medicine, Xiamen University, Xiamen, 361102, PR China; Key Laboratory of Chiral Drugs, Xiamen, 361102, PR China; Medical College, Xuchang University, Xuchang, 461000, PR China
| | - Xiaoqian Yuan
- Department of Basic Medical Science, School of Medicine, Xiamen University, Xiamen, 361102, PR China; Key Laboratory of Chiral Drugs, Xiamen, 361102, PR China
| | - Yilin Pan
- Department of Basic Medical Science, School of Medicine, Xiamen University, Xiamen, 361102, PR China
| | - Lichao Yang
- Department of Basic Medical Science, School of Medicine, Xiamen University, Xiamen, 361102, PR China; Key Laboratory of Chiral Drugs, Xiamen, 361102, PR China
| | - Yun Zhao
- Department of Basic Medical Science, School of Medicine, Xiamen University, Xiamen, 361102, PR China; Key Laboratory of Chiral Drugs, Xiamen, 361102, PR China
| | - Rengong Zhuo
- Department of Basic Medical Science, School of Medicine, Xiamen University, Xiamen, 361102, PR China; Key Laboratory of Chiral Drugs, Xiamen, 361102, PR China
| | - Caixia Chen
- Department of Basic Medical Science, School of Medicine, Xiamen University, Xiamen, 361102, PR China; Key Laboratory of Chiral Drugs, Xiamen, 361102, PR China
| | - Lu Peng
- Department of Basic Medical Science, School of Medicine, Xiamen University, Xiamen, 361102, PR China; Key Laboratory of Chiral Drugs, Xiamen, 361102, PR China
| | - Wenjun Li
- Department of Basic Medical Science, School of Medicine, Xiamen University, Xiamen, 361102, PR China; Key Laboratory of Chiral Drugs, Xiamen, 361102, PR China
| | - Xin Jin
- Department of Basic Medical Science, School of Medicine, Xiamen University, Xiamen, 361102, PR China; Key Laboratory of Chiral Drugs, Xiamen, 361102, PR China.
| | - Yu Zhou
- Department of Basic Medical Science, School of Medicine, Xiamen University, Xiamen, 361102, PR China; Key Laboratory of Chiral Drugs, Xiamen, 361102, PR China.
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