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Mialet-Perez J, Belaidi E. Interplay between Hypoxia Inducible Factor-1 and mitochondria in cardiac diseases. Free Radic Biol Med 2024:S0891-5849(24)00426-X. [PMID: 38697490 DOI: 10.1016/j.freeradbiomed.2024.04.239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 04/23/2024] [Accepted: 04/29/2024] [Indexed: 05/05/2024]
Abstract
Ischemic heart diseases and cardiomyopathies are characterized by hypoxia, energy starvation and mitochondrial dysfunction. HIF-1 acts as a cellular oxygen sensor, tuning the balance of metabolic and oxidative stress pathways to provide ATP and sustain cell survival. Acting on mitochondria, HIF-1 regulates different processes such as energy substrate utilization, oxidative phosphorylation and mitochondrial dynamics. In turn, mitochondrial homeostasis modifications impact HIF-1 activity. This underlies that HIF-1 and mitochondria are tightly interconnected to maintain cell homeostasis. Despite many evidences linking HIF-1 and mitochondria, the mechanistic insights are far from being understood, particularly in the context of cardiac diseases. Here, we explore the current understanding of how HIF-1, reactive oxygen species and cell metabolism are interconnected, with a specific focus on mitochondrial function and dynamics. We also discuss the divergent roles of HIF in acute and chronic cardiac diseases in order to highlight that HIF-1, mitochondria and oxidative stress interaction deserves to be deeply investigated. While the strategies aiming at stabilizing HIF-1 have provided beneficial effects in acute ischemic injury, some deleterious effects were observed during prolonged HIF-1 activation. Thus, deciphering the link between HIF-1 and mitochondria will help to optimize HIF-1 modulation and provide new therapeutic perspectives for the treatment of cardiovascular pathologies.
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Affiliation(s)
- Jeanne Mialet-Perez
- Univ Angers, INSERM, CNRS, MITOVASC, Equipe MitoLab, SFR ICAT, Angers, France
| | - Elise Belaidi
- Univ. Lyon 1, Laboratory of Tissue Biology and Therapeutic Engineering, CNRS, LBTI UMR 5305, 69367, Lyon, France.
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2
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Ganouna-Cohen G, Marcouiller F, Blachot-Minassian B, Demarest M, Beauparlant CJ, Droit A, Belaidi E, Bairam A, Joseph V. Loss of testosterone induces postprandial insulin resistance and increases the expression of the hepatic antioxidant flavin-containing monooxygenases in mice exposed to intermittent hypoxia. Acta Physiol (Oxf) 2024; 240:e14089. [PMID: 38230898 DOI: 10.1111/apha.14089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 11/29/2023] [Accepted: 01/01/2024] [Indexed: 01/18/2024]
Abstract
AIM We tested the hypothesis that low testosterone alters the effects of intermittent hypoxia (IH) on glucose homeostasis, hepatic oxidative stress, and transcriptomic profile in male mice. METHODS We used sham-operated or orchiectomized (ORX) mice exposed to normoxia (Nx) or IH for 2 weeks. We performed fasting insulin and glucose tolerance tests and assessed fasting and postprandial insulin resistance with the HOMA-IR. The activity of hepatic prooxidant (NADPH oxidase-NOX), antioxidant enzymes (superoxide dismutase, catalase, and glutathione peroxidase-SOD, Cat, GPx), lipid peroxidation (MDA concentration), and the total concentration of glutathione (GSH) were measured under postprandial conditions. mRNA sequencing and pathway enrichment analyses were used to identify hepatic genes underlying the interactions between IH and testosterone. RESULTS In Sham mice, IH improves fasting insulin sensitivity and glucose tolerance, while there are no effects of IH in ORX mice. In ORX mice, IH induces postprandial hyperinsulinemia, insulin resistance, and a prooxidant profile of enzyme activity (low SOD activity) without altering hepatic MDA and GSH content. ORX and IH altered the expression of genes involved in oxidoreductase activities, cytochromes-dependent pathways, and glutathione metabolism. Among the genes upregulated in ORX-IH mice, the flavin-containing monooxygenases (FMO) are particularly relevant since these are potent hepatic antioxidants that could help prevent overt oxidative stress in ORX-IH mice. CONCLUSION Low levels of testosterone in male mice exposed to IH induce post-prandial hyperinsulinemia and insulin resistance and determine the mechanisms by which the liver handles IH-induced oxidative stress.
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Affiliation(s)
- Gauthier Ganouna-Cohen
- Département de Pédiatrie, Faculté de Médecine, Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec, Université Laval, Québec, Quebec, Canada
| | - François Marcouiller
- Département de Pédiatrie, Faculté de Médecine, Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec, Université Laval, Québec, Quebec, Canada
| | - Britanny Blachot-Minassian
- Département de Pédiatrie, Faculté de Médecine, Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec, Université Laval, Québec, Quebec, Canada
- HP2, INSERM, U1300, Université Grenoble Alpes, Grenoble, France
| | - Maud Demarest
- Département de Pédiatrie, Faculté de Médecine, Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec, Université Laval, Québec, Quebec, Canada
| | - Charles Joly Beauparlant
- Département de Médecine Moléculaire, Faculté de Médecine, Centre de Recherche du Centre Hospitalo-Universitaire de Québec, Québec, Quebec, Canada
| | - Arnaud Droit
- Département de Médecine Moléculaire, Faculté de Médecine, Centre de Recherche du Centre Hospitalo-Universitaire de Québec, Québec, Quebec, Canada
| | - Elise Belaidi
- HP2, INSERM, U1300, Université Grenoble Alpes, Grenoble, France
- UMR5305-LBTI, CNRS, Institut de Biologie et Chimie des Protéines, Lyon, France
| | - Aida Bairam
- Département de Pédiatrie, Faculté de Médecine, Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec, Université Laval, Québec, Quebec, Canada
| | - Vincent Joseph
- Département de Pédiatrie, Faculté de Médecine, Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec, Université Laval, Québec, Quebec, Canada
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3
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Breuillard C, Moulin S, Bouyon S, Couchet M, Moinard C, Belaidi E. Chronic intermittent hypoxia due to obstructive sleep apnea slightly alters nutritional status: a pre-clinical study. Front Nutr 2023; 10:1250529. [PMID: 37964925 PMCID: PMC10642957 DOI: 10.3389/fnut.2023.1250529] [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] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 10/13/2023] [Indexed: 11/16/2023] Open
Abstract
Obstructive sleep apnea syndrome (OSAS) is associated with chronic intermittent hypoxia (cIH) that causes disturbances in glucose and lipid metabolism. Animals exposed to cIH show lower body weight and food intake, but the protein-energy metabolism has never been investigated. Here, to address the gap, we studied the impact of cIH on nutritional status in rats. A total of 24 male Wistar rats were randomized into 3 groups (n = 8): a control group (Ctrl), a cIH group (cIH) exposed to cIH (30 s 21-30 s 5% fraction of inspired oxygen, 8 h per day, for 14 days), and a pair-fed group (PF) exposed to normoxia with food intake adjusted to the intake of the cIH group rats with anorexia. Body weight and food intake were measured throughout the study. After 14 days, the rats were euthanized, the organs were collected, weighed, and the liver, intestine mucosa, and muscles were snap-frozen to measure total protein content. Food intake was decreased in the cIH group. Body weight was significantly lower in the cIH group only (-11%, p < 0.05). Thymus and liver weight as well as EDL protein content tended to be lower in the cIH group than in the Ctrl and PF groups. Jejunum and ileum mucosa protein contents were lower in the cIH group compared to the PF group. cIH causes a slight impairment of nutritional status and immunity. This pre-clinical work argues for greater consideration of malnutrition in care for OSAS patients. Further studies are warranted to devise an adequate nutritional strategy.
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Affiliation(s)
- Charlotte Breuillard
- Université Grenoble Alpes, Inserm, Laboratory of Fundamental and Applied Bioenergetics (LBFA), Grenoble, France
| | - Sophie Moulin
- Université Grenoble Alpes, Inserm, Laboratory HP2, Grenoble, France
| | - Sophie Bouyon
- Université Grenoble Alpes, Inserm, Laboratory HP2, Grenoble, France
| | - Morgane Couchet
- Université Grenoble Alpes, Inserm, Laboratory of Fundamental and Applied Bioenergetics (LBFA), Grenoble, France
| | - Christophe Moinard
- Université Grenoble Alpes, Inserm, Laboratory of Fundamental and Applied Bioenergetics (LBFA), Grenoble, France
| | - Elise Belaidi
- Université Grenoble Alpes, Inserm, Laboratory HP2, Grenoble, France
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Khouri C, El Amine B, Arnaud C, Belaidi E, Boete Q, Godin-Ribuot D, Levy P, Faury G, Harki O, Cracowski JL, Briançon-Marjollet A, Pepin JL. Co-authorship group significantly impacts reported arterial blood pressure variations in rodents exposed to intermittent hypoxia: a meta-research study. Cardiovasc Res 2023; 119:e128-e130. [PMID: 36975315 DOI: 10.1093/cvr/cvad048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 11/29/2022] [Accepted: 12/20/2022] [Indexed: 03/29/2023] Open
Affiliation(s)
- Charles Khouri
- Univ. Grenoble Alpes, HP2 Laboratory, Inserm U1300, Grenoble, France
- Grenoble Alpes University Hospital, Pharmacovigilance Unit, Grenoble, France
- Grenoble Alpes University Hospital, Clinical Pharmacology Department, INSERM CIC1406, Grenoble, France
| | - Bayan El Amine
- Univ. Grenoble Alpes, HP2 Laboratory, Inserm U1300, Grenoble, France
| | - Claire Arnaud
- Univ. Grenoble Alpes, HP2 Laboratory, Inserm U1300, Grenoble, France
| | - Elise Belaidi
- Univ. Grenoble Alpes, HP2 Laboratory, Inserm U1300, Grenoble, France
| | - Quentin Boete
- Univ. Grenoble Alpes, HP2 Laboratory, Inserm U1300, Grenoble, France
| | | | - Patrick Levy
- Univ. Grenoble Alpes, HP2 Laboratory, Inserm U1300, Grenoble, France
| | - Gilles Faury
- Univ. Grenoble Alpes, HP2 Laboratory, Inserm U1300, Grenoble, France
| | - Olfa Harki
- Univ. Grenoble Alpes, HP2 Laboratory, Inserm U1300, Grenoble, France
| | - Jean-Luc Cracowski
- Univ. Grenoble Alpes, HP2 Laboratory, Inserm U1300, Grenoble, France
- Grenoble Alpes University Hospital, Pharmacovigilance Unit, Grenoble, France
| | | | - Jean-Louis Pepin
- Univ. Grenoble Alpes, HP2 Laboratory, Inserm U1300, Grenoble, France
- Grenoble Alpes University Hospital, EFCR Laboratory, Thorax and Vessels division, Grenoble, France
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5
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Belaidi E, Moulin S, Thomas A, Dontaine J, Bultot L, Arnaud C, Guigas B, Bertrand L. Metformin improves infarct size in mice exposed to chronic intermittent hypoxia, a major feature of obstructive sleep apnea. J Mol Cell Cardiol 2022. [DOI: 10.1016/j.yjmcc.2022.08.126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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6
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Belaidi E, Khouri C, Harki O, Baillieul S, Faury G, Briançon-Marjollet A, Pépin JL, Arnaud C. Cardiac consequences of intermittent hypoxia: a matter of dose? A systematic review and meta-analysis in rodents. Eur Respir Rev 2022; 31:31/164/210269. [PMID: 35418489 PMCID: PMC9171537 DOI: 10.1183/16000617.0269-2021] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 01/24/2022] [Indexed: 12/21/2022] Open
Abstract
Aim Intermittent hypoxia (IH) is considered to be a major contributor to obstructive sleep apnoea-related cardiovascular consequences. The present meta-analysis aimed to assess the effects of IH on cardiac remodelling, function and infarct size after myocardial ischaemia across different rodent species and IH severities. Methods and results Relevant articles from PubMed, Embase and Web of Science were screened. We performed a random effect meta-analysis to assess the effect of IH on myocardium in rodents by using standardised mean difference (SMD). Studies using rodents exposed to IH and outcomes related to cardiac remodelling, contractile function and response to myocardial ischaemia–reperfusion were included. 5217 articles were screened and 92 were included, demonstrating that IH exposure induced cardiac remodelling, characterised by cardiomyocyte hypertrophy (cross-sectional area: SMD=2.90, CI (0.82–4.98), I2=94.2%), left ventricular (LV) dilation (LV diameter: SMD=0.64, CI (0.18–1.10), I2=88.04%), interstitial fibrosis (SMD=5.37, CI (3.22–7.53), I2=94.8) and apoptosis (terminal deoxynucleotidyl transferase dUTP nick end labelling: SMD=6.70, CI (2.96–10.44), I2=95.9). These structural changes were accompanied by a decrease in LV ejection fraction (SMD=−1.82, CI (−2.52–−1.12), I2=94.22%). Importantly, most of the utilised IH protocols mimicked extremely severe hypoxic disease. Concerning infarct size, meta-regression analyses highlighted an ambivalent role of IH, depending on its severity. Indeed, IH exposure with inspiratory oxygen fraction (FIO2) <7% was associated with an increase in infarct size, whereas a reduced infarct size was reported for FIO2 levels above 10%. Heterogeneity between studies, small study effect and poor reporting of methods in included articles limited the robustness of the meta-analysis findings. Conclusion This meta-analysis demonstrated that severe IH systematically induces cardiac remodelling and contractile dysfunction in rodents, which might trigger or aggravate chronic heart failure. Interestingly, this meta-analysis showed that, depending on stimulus severity, IH exhibits both protective and aggravating effects on infarct size after experimental ischaemia–reperfusion procedures. This meta-analysis shows that IH induces cardiac remodelling and contractile dysfunction in rodents, independently of IH characteristics. Conversely, the dual response to myocardial ischaemia–reperfusion seems to be related to IH intensity and duration.https://bit.ly/3rdnR32
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Affiliation(s)
- Elise Belaidi
- Univ. Grenoble Alpes, INSERM, CHU Grenoble Alpes, HP2, Grenoble, France .,These authors contributed equally to this work
| | - Charles Khouri
- Univ. Grenoble Alpes, INSERM, CHU Grenoble Alpes, HP2, Grenoble, France.,Pharmacovigilance Unit and Clinical Pharmacology Dept, Grenoble Alpes University Hospital, Grenoble, France.,These authors contributed equally to this work
| | - Olfa Harki
- Univ. Grenoble Alpes, INSERM, CHU Grenoble Alpes, HP2, Grenoble, France
| | | | - Gilles Faury
- Univ. Grenoble Alpes, INSERM, CHU Grenoble Alpes, HP2, Grenoble, France
| | | | - Jean-Louis Pépin
- Univ. Grenoble Alpes, INSERM, CHU Grenoble Alpes, HP2, Grenoble, France
| | - Claire Arnaud
- Univ. Grenoble Alpes, INSERM, CHU Grenoble Alpes, HP2, Grenoble, France
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7
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Ozcan B, Blachot-Minassian B, Maziere L, Paradis S, Bouyon S, Arnaud C, Moinard C, Belaidi E. L-citrulline supplementation reduces systolic arterial pressure and myocardial infarct size in a rat model of sleep apnea syndrome. Archives of Cardiovascular Diseases Supplements 2022. [DOI: 10.1016/j.acvdsp.2022.04.043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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8
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Billoir E, Lyko C, Guillaume V, Detrait M, Ozcan B, Paradis S, Bouyon S, Pépin JL, Belaidi E, Arnaud C. Impact of intermittent hypoxia on ischemic cardiomyopathy progression: Role of insulin and adrenergic cross-talk. Archives of Cardiovascular Diseases Supplements 2022. [DOI: 10.1016/j.acvdsp.2022.04.086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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9
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Khan SN, J G, Czibik G, Zhang Y, Mezdari Z, Belaidi E, Pépin JL, Derumeaux G, Sawaki D, Arnaud C. Intermittent hypoxia induces premature adipose tissue senescence leading to cardiac remodelling. Archives of Cardiovascular Diseases Supplements 2022. [DOI: 10.1016/j.acvdsp.2022.04.123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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10
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Joseph V, Pagliardini S, Belaidi E. Editorial: Causes and Consequences of Sleep Apnea: Spotlights on the Roles of Sex and Sex Hormones. Front Physiol 2022; 13:857627. [PMID: 35283785 PMCID: PMC8905521 DOI: 10.3389/fphys.2022.857627] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 01/24/2022] [Indexed: 12/19/2022] Open
Affiliation(s)
- Vincent Joseph
- Département de Pédiatrie, Faculté de Médecine, Centre de Recherche de l'Institut Universitaire de Cardiologie et Pneumologie de Québec, Université Laval, Quebec, QC, Canada
| | - Silvia Pagliardini
- Department of Physiology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada.,Women and Children Health Research Institute, University of Alberta, Edmonton, AB, Canada
| | - Elise Belaidi
- Université Grenoble Alpes, INSERM, CHU Grenoble Alpes, HP2, Grenoble, France
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11
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Gaucher J, Vial G, Montellier E, Guellerin M, Bouyon S, Lemarie E, Pelloux V, Bertrand A, Pernet-Gallay K, Lamarche F, Borel AL, Arnaud C, Belaidi E, Clément K, Godin Ribuot D, Aron-Wisnewsky J, Pépin JL. Intermittent Hypoxia Rewires the Liver Transcriptome and Fires up Fatty Acids Usage for Mitochondrial Respiration. Front Med (Lausanne) 2022; 9:829979. [PMID: 35252260 PMCID: PMC8894659 DOI: 10.3389/fmed.2022.829979] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 01/21/2022] [Indexed: 11/15/2022] Open
Abstract
Sleep Apnea Syndrome (SAS) is one of the most common chronic diseases, affecting nearly one billion people worldwide. The repetitive occurrence of abnormal respiratory events generates cyclical desaturation-reoxygenation sequences known as intermittent hypoxia (IH). Among SAS metabolic sequelae, it has been established by experimental and clinical studies that SAS is an independent risk factor for the development and progression of non-alcoholic fatty liver disease (NAFLD). The principal goal of this study was to decrypt the molecular mechanisms at the onset of IH-mediated liver injury. To address this question, we used a unique mouse model of SAS exposed to IH, employed unbiased high-throughput transcriptomics and computed network analysis. This led us to examine hepatic mitochondrial ultrastructure and function using electron microscopy, high-resolution respirometry and flux analysis in isolated mitochondria. Transcriptomics and network analysis revealed that IH reprograms Nuclear Respiratory Factor- (NRF-) dependent gene expression and showed that mitochondria play a central role. We thus demonstrated that IH boosts the oxidative capacity from fatty acids of liver mitochondria. Lastly, the unbalance between oxidative stress and antioxidant defense is tied to an increase in hepatic ROS production and DNA damage during IH. We provide a comprehensive analysis of liver metabolism during IH and reveal the key role of the mitochondria at the origin of development of liver disease. These findings contribute to the understanding of the mechanisms underlying NAFLD development and progression during SAS and provide a rationale for novel therapeutic targets and biomarker discovery.
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Affiliation(s)
- Jonathan Gaucher
- Hypoxia and PhysioPathology (HP2) Laboratory, INSERM U1300, CHU Grenoble-Alpes, University Grenoble-Alpes, Grenoble, France,*Correspondence: Jonathan Gaucher
| | - Guillaume Vial
- Hypoxia and PhysioPathology (HP2) Laboratory, INSERM U1300, CHU Grenoble-Alpes, University Grenoble-Alpes, Grenoble, France
| | - Emilie Montellier
- CNRS 5309, INSERM U1209, Institute for Advanced Biosciences, University Grenoble-Alpes, Grenoble, France
| | - Maëlle Guellerin
- Hypoxia and PhysioPathology (HP2) Laboratory, INSERM U1300, CHU Grenoble-Alpes, University Grenoble-Alpes, Grenoble, France
| | - Sophie Bouyon
- Hypoxia and PhysioPathology (HP2) Laboratory, INSERM U1300, CHU Grenoble-Alpes, University Grenoble-Alpes, Grenoble, France
| | - Emeline Lemarie
- Hypoxia and PhysioPathology (HP2) Laboratory, INSERM U1300, CHU Grenoble-Alpes, University Grenoble-Alpes, Grenoble, France
| | - Véronique Pelloux
- Nutrition and Obesities, Systemic Approaches, NutriOmics, Laboratory, Sorbonne University, Paris, France,Nutrition Department, CRNH Ile de France, Assistance Publique Hôpitaux de Paris, Pitie-Salpêtrière Hospital, Paris, France
| | - Anne Bertrand
- INSERM U1216, Grenoble Institute of Neurosciences, University Grenoble-Alpes, Grenoble, France
| | - Karin Pernet-Gallay
- INSERM U1216, Grenoble Institute of Neurosciences, University Grenoble-Alpes, Grenoble, France
| | - Frederic Lamarche
- Laboratory of Fundamental and Applied Bioenergetics (LBFA), INSERM U1055, University Grenoble Alpes, Grenoble, France
| | - Anne-Laure Borel
- Hypoxia and PhysioPathology (HP2) Laboratory, INSERM U1300, CHU Grenoble-Alpes, University Grenoble-Alpes, Grenoble, France
| | - Claire Arnaud
- Hypoxia and PhysioPathology (HP2) Laboratory, INSERM U1300, CHU Grenoble-Alpes, University Grenoble-Alpes, Grenoble, France
| | - Elise Belaidi
- Hypoxia and PhysioPathology (HP2) Laboratory, INSERM U1300, CHU Grenoble-Alpes, University Grenoble-Alpes, Grenoble, France
| | - Karine Clément
- Nutrition and Obesities, Systemic Approaches, NutriOmics, Laboratory, Sorbonne University, Paris, France,Nutrition Department, CRNH Ile de France, Assistance Publique Hôpitaux de Paris, Pitie-Salpêtrière Hospital, Paris, France
| | - Diane Godin Ribuot
- Hypoxia and PhysioPathology (HP2) Laboratory, INSERM U1300, CHU Grenoble-Alpes, University Grenoble-Alpes, Grenoble, France
| | - Judith Aron-Wisnewsky
- Nutrition and Obesities, Systemic Approaches, NutriOmics, Laboratory, Sorbonne University, Paris, France,Nutrition Department, CRNH Ile de France, Assistance Publique Hôpitaux de Paris, Pitie-Salpêtrière Hospital, Paris, France
| | - Jean-Louis Pépin
- Hypoxia and PhysioPathology (HP2) Laboratory, INSERM U1300, CHU Grenoble-Alpes, University Grenoble-Alpes, Grenoble, France,Jean-Louis Pépin
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Harki O, Boete Q, Pépin JL, Arnaud C, Belaidi E, Faury G, Khouri C, Briançon-Marjollet A. Intermittent hypoxia-related alterations in vascular structure and function: a systematic review and meta-analysis of rodent data. Eur Respir J 2021; 59:13993003.00866-2021. [PMID: 34413154 DOI: 10.1183/13993003.00866-2021] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Accepted: 07/25/2021] [Indexed: 12/09/2022]
Abstract
Obstructive Sleep Apnea and the related intermittent hypoxia (IH) are widely recognised as risk factors for incident cardiovascular diseases. Numerous studies support the deleterious vascular impact of IH in rodents but an overall interpretation is challenging owing to heterogeneity in rodent species investigated and the severity and duration of IH exposure.To clarify this major issue, we conducted a systematic review and meta-analysis to quantify the impact of IH on systemic artery structure and function depending on the different IH exposure designs.We searched PubMed, Embase and Web of Sciences and included 125 articles in a meta-analysis, among them 112 using wild-type rodents and 13 using Apolipoprotein E knock-out mice. We used the standardised mean difference (SMD) to compare results between studies.IH significantly increased mean arterial pressure (+13.90 mmHg (95% CI [11.88; 15.92]), systolic and diastolic blood pressure. Meta-regressions showed that mean arterial pressure change was associated with strain and year of publication. IH altered vasodilation in males but not in females, and increased endothelin-1-induced, but not phenylephrine-induced, vasoconstriction. Intima-media thickness significantly increased upon IH exposure (SMD 1.10 [0.58; 1.62], absolute values: +5.23 (2.81-7.84)). This increase was observed in mice but not in rats, and was negatively associated with age. Finally IH increased atherosclerotic plaque size in ApoE-/- mice (SMD 1.08 [0.80; 1.37]).To conclude, our meta-analysis established that IH, independently of other confounders, has a strong effect on vascular structure and physiology. Our findings support the interest of identifying and treating sleep apnea in routine cardiology practice.
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Affiliation(s)
- Olfa Harki
- Univ. Grenoble Alpes, INSERM, CHU Grenoble Alpes, Grenoble, France
| | - Quentin Boete
- Univ. Grenoble Alpes, INSERM, CHU Grenoble Alpes, Grenoble, France
| | - Jean-Louis Pépin
- Univ. Grenoble Alpes, INSERM, CHU Grenoble Alpes, Grenoble, France
| | - Claire Arnaud
- Univ. Grenoble Alpes, INSERM, CHU Grenoble Alpes, Grenoble, France
| | - Elise Belaidi
- Univ. Grenoble Alpes, INSERM, CHU Grenoble Alpes, Grenoble, France
| | - Gilles Faury
- Univ. Grenoble Alpes, INSERM, CHU Grenoble Alpes, Grenoble, France
| | - Charles Khouri
- Univ. Grenoble Alpes, INSERM, CHU Grenoble Alpes, Grenoble, France.,Pharmacovigilance Unit & Clinical Pharmacology Department, Grenoble Alpes University Hospital, Grenoble, France.,Co-last authors have equally contributed to the work
| | - Anne Briançon-Marjollet
- Univ. Grenoble Alpes, INSERM, CHU Grenoble Alpes, Grenoble, France .,Co-last authors have equally contributed to the work
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Belaidi E, Moulin S, Thomas A, Bultot L, Dontaine J, Pépin J, Arnaud C, Guigas B, Bertrand L. Metformin improves infarct size in mice exposed to chronic intermittent hypoxia, a major feature of obstructive sleep apnea. Archives of Cardiovascular Diseases Supplements 2021. [DOI: 10.1016/j.acvdsp.2021.04.139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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14
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Waltz X, Beaudin AE, Belaidi E, Raneri J, Pépin JL, Pialoux V, Hanly PJ, Verges S, Poulin MJ. Impact of obstructive sleep apnea and intermittent hypoxia on blood rheology - a translational study. Eur Respir J 2021; 58:13993003.00352-2021. [PMID: 33863746 DOI: 10.1183/13993003.00352-2021] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 04/08/2021] [Indexed: 11/05/2022]
Abstract
RATIONALE Hemorheological alterations are reported in obstructive sleep apnea (OSA) and reversed with continuous positive airway pressure (CPAP), observations potentially explained by intermittent hypoxia (IH)-induced oxidative stress. OBJECTIVE To investigate whether IH causes hemorheological alterations viaoxidative stress. METHODS Wistar rats were exposed to normoxia (n=7) or IH (n=8) for 14 days. Twenty-three moderate-to-severe OSA patients were assessed at three time points: baseline, after randomisation to either 2 weeks of nocturnal oxygen (n=13) or no treatment (n=10), and after 1-month of CPAP treatment (n=17). Further, an OSA-free control group (n=13) was assessed at baseline and after time-matched follow-up. MEASUREMENTS We measured hemorheological parameters [hematocrit, blood viscosity, plasma viscosity (rats only), erythrocyte aggregation and deformability (humans only)] and redox balance (SOD, GPX, protein oxidation [AOPP] and lipid peroxidation [MDA]). We also tested erythrocytes hemorheological sensitivity to reactive oxygen species (ROS) in our human participants using the oxidant t-butyl hydroperoxide (TBHP). RESULTS In rats, IH increased blood viscosity by increasing hematocrit without altering erythrocytes hemorheological properties. IH also reduced SOD activity and increased AOPP. In humans, baseline hemorheological properties were similar between patients and controls, and properties were unaltered following oxygen and CPAP, except erythrocyte deformability was reduced following oxygen therapy. Redox balance was comparable between patients and controls. At baseline, TBHP induced a greater reduction of erythrocyte deformability in patients while CPAP reduced TBHP-induced increase in aggregation strength. CONCLUSION IH and OSA per se do not cause hemorheological alterations despite the presence of oxidative stress or higher sensitivity to ROS, respectively.
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Affiliation(s)
- Xavier Waltz
- Department of Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.,Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.,Laboratoire HP2, Grenoble Alpes University, INSERM, CHU Grenoble Alpes, Grenoble, France.,Contributed equally to this work
| | - Andrew E Beaudin
- Department of Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.,Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.,Contributed equally to this work
| | - Elise Belaidi
- Laboratoire HP2, Grenoble Alpes University, INSERM, CHU Grenoble Alpes, Grenoble, France
| | - Jill Raneri
- Sleep Centre, Foothills Medical Centre, Calgary, AB, Canada
| | - Jean-Louis Pépin
- Laboratoire HP2, Grenoble Alpes University, INSERM, CHU Grenoble Alpes, Grenoble, France
| | - Vincent Pialoux
- Laboratoire Interuniversitaire de Biologie de la Motricité, University of Lyon, Lyon, France
| | - Patrick J Hanly
- Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.,Sleep Centre, Foothills Medical Centre, Calgary, AB, Canada
| | - Samuel Verges
- Laboratoire HP2, Grenoble Alpes University, INSERM, CHU Grenoble Alpes, Grenoble, France.,Contributed equally to this work
| | - Marc J Poulin
- Department of Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada .,Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.,Libin Cardiovascular Institute of Alberta, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.,Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.,Faculty of Kinesiology, University of Calgary, Calgary, AB, Canada.,Contributed equally to this work
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15
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Détrait M, Pesse M, Calissi C, Bouyon S, Brocard J, Vial G, Pépin JL, Belaidi E, Arnaud C. Short-term intermittent hypoxia induces simultaneous systemic insulin resistance and higher cardiac contractility in lean mice. Physiol Rep 2021; 9:e14738. [PMID: 33682327 PMCID: PMC7937943 DOI: 10.14814/phy2.14738] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 01/07/2021] [Accepted: 01/08/2021] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Intermittent hypoxia (IH) is the major feature of obstructive sleep apnea syndrome, well-known to induce cardiometabolic complications. We previously demonstrated that IH induces hyperinsulinemia and associated altered insulin signaling in adipose tissue, liver, and skeletal muscle, but impact of IH on cardiac insulin signaling and functional/structural consequences remains unknown. Therefore, the aims of this study were to investigate in both lean and obese mice the effects of chronic IH on the following: (1) cardiac insulin signaling and (2) cardiac remodeling and function. METHODS C57BL/6 J male mice were fed low-fat (LFD) or high-fat (HFD) diet for 20 weeks, and exposed to IH (21-5% FiO2, 60 s cycle, 8 h/day) or normoxia (N) for the last 6 weeks. Systemic insulin sensitivity was evaluated by an insulin tolerance test. Cardiac remodeling and contractile function were assessed by cardiac ultrasonography. Ultimately, hearts were withdrawn for biochemical and histological analysis. RESULTS In LFD mice, IH-induced hyperinsulinemia and systemic insulin resistance that were associated with increased phosphorylations of cardiac insulin receptor and Akt on Tyr1150 and Ser473 residues, respectively. In addition, IH significantly increased cardiac interstitial fibrosis and cardiac contractility. In the HFD group, IH did not exert any additional effect, nor on insulin/Akt signaling, nor on cardiac remodeling and function. CONCLUSION Our study suggests that, despite systemic insulin resistance, IH exposure mediates an adaptive cardiac response in lean but not in obese mice. Further studies are needed to investigate which specific mechanisms are involved and to determine the long-term evolution of cardiac responses to IH.
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Affiliation(s)
- Maximin Détrait
- University Grenoble Alpes, Inserm, CHU Grenoble Alpes, Grenoble, France
| | - Mélanie Pesse
- University Grenoble Alpes, Inserm, CHU Grenoble Alpes, Grenoble, France
| | - Clément Calissi
- University Grenoble Alpes, Inserm, CHU Grenoble Alpes, Grenoble, France
| | - Sophie Bouyon
- University Grenoble Alpes, Inserm, CHU Grenoble Alpes, Grenoble, France
| | - Jacques Brocard
- University Grenoble Alpes, Inserm, CHU Grenoble Alpes, Grenoble, France.,University Lyon, ENS de Lyon, Inserm, CNRS SFR Biosciences, UCBL, Lyon, France
| | - Guillaume Vial
- University Grenoble Alpes, Inserm, CHU Grenoble Alpes, Grenoble, France
| | - Jean-Louis Pépin
- University Grenoble Alpes, Inserm, CHU Grenoble Alpes, Grenoble, France
| | - Elise Belaidi
- University Grenoble Alpes, Inserm, CHU Grenoble Alpes, Grenoble, France
| | - Claire Arnaud
- University Grenoble Alpes, Inserm, CHU Grenoble Alpes, Grenoble, France
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16
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Chacaroun S, Borowik A, Vega-Escamilla Y Gonzalez I, Doutreleau S, Wuyam B, Belaidi E, Tamisier R, Pepin JL, Flore P, Verges S. Hypoxic Exercise Training to Improve Exercise Capacity in Obese Individuals. Med Sci Sports Exerc 2021; 52:1641-1649. [PMID: 32102058 DOI: 10.1249/mss.0000000000002322] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
INTRODUCTION Combining exercise training with hypoxic exposure has been recently proposed as a new therapeutic strategy to improve health status of obese individuals. Whether hypoxic exercise training (HET) provides greater benefits regarding body composition and cardiometabolic parameters than normoxic exercise training (NET) remains, however, unclear. We hypothesized that HET would induce greater improvement in exercise capacity and health status than NET in overweight and obese individuals. METHODS Twenty-three subjects were randomized into 8-wk HET (11 men and 1 woman; age, 52 ± 12 yr; body mass index, 31.2 ± 2.4 kg·m) or NET (eight men and three women; age, 56 ± 11 yr; body mass index, 31.8 ± 3.2 kg·m) programs (three sessions per week; constant-load cycling at 75% of maximal heart rate; target arterial oxygen saturation for HET 80%, FiO2 ~0.13, i.e., ~3700 m a.s.l.). Before and after the training programs, the following evaluations were performed: incremental maximal and submaximal cycling tests, measurements of pulse-wave velocity, endothelial function, fasting glucose, insulin and lipid profile, blood NO metabolites and oxidative stress, and determination of body composition by magnetic resonance imaging. RESULTS Peak oxygen consumption and maximal power output increased significantly after HET only (peak oxygen consumption HET + 10% ± 11% vs NET + 1% ± 10% and maximal power output HET + 11% ± 7% vs NET + 3% ± 10%, P < 0.05). Submaximal exercise responses improved similarly after HET and NET. Except diastolic blood pressure which decreased significantly after both HET and NET, no change in vascular function, metabolic status and body composition was observed after training. Hypoxic exercise training only increased nitrite and reduced superoxide dismutase concentrations. CONCLUSIONS Combining exercise training and hypoxic exposure may provide some additional benefits to standard NET for obese individual health status.
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Affiliation(s)
- Samarmar Chacaroun
- Université Grenoble Alpes, Inserm, Grenoble Alpes University Hospital, Grenoble, FRANCE
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Varela-Guruceaga M, Belaidi E, Lebeau L, Aka E, Andriantsitohaina R, Giorgetti-Peraldi S, Arnaud C, Le Lay S. Intermittent Hypoxia Mediates Caveolae Disassembly That Parallels Insulin Resistance Development. Front Physiol 2020; 11:565486. [PMID: 33324235 PMCID: PMC7726350 DOI: 10.3389/fphys.2020.565486] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Accepted: 11/04/2020] [Indexed: 01/17/2023] Open
Abstract
Repetitive complete or incomplete pharyngeal collapses are leading to chronic intermittent hypoxia (CIH), a hallmark feature of obstructive sleep apnea (OSA) syndrome responsible for many metabolic disorders. In humans, an association between OSA and insulin resistance has been found independently of the degree of obesity. Based on our previous work showing that hypoxia applied to adipocytes led to cellular insulin resistance associated with caveolae flattening, we have investigated the effects of CIH on caveolae structuration in adipose tissue. Original exploratory experiences demonstrate that 6 weeks-exposure of lean mice to CIH is characterized by systemic insulin resistance and translates into adipocyte insulin signaling alterations. Chronic intermittent hypoxia also induces caveolae disassembly in white adipose tissue (WAT) illustrated by reduced plasma membrane caveolae density and enlarged caveolae width, concomitantly to WAT insulin resistance state. We show that CIH downregulates caveolar gene and protein expressions, including cavin-1, cavin-2, and EHD2, underlying molecular mechanisms responsible for such caveolae flattening. Altogether, we provide evidences for adipose tissue caveolae disassembly following CIH exposure, likely linked to cavin protein downregulation. This event may constitute the molecular basis of insulin resistance development in OSA patients.
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Affiliation(s)
- Maider Varela-Guruceaga
- INSERM UMR1063, Oxidative Stress and Metabolic Pathologies, University of Angers, SFR ICAT, Angers, France
| | - Elise Belaidi
- Univ. Grenoble Alpes, Inserm, CHU Grenoble Alpes, HP2, Grenoble, France
| | - Lucie Lebeau
- INSERM UMR1063, Oxidative Stress and Metabolic Pathologies, University of Angers, SFR ICAT, Angers, France
| | - Ella Aka
- INSERM UMR1063, Oxidative Stress and Metabolic Pathologies, University of Angers, SFR ICAT, Angers, France
| | | | - Sophie Giorgetti-Peraldi
- Université Cote d'Azur, Inserm, C3M, Team Cellular and Molecular Physiopathology of Obesity, Nice, France
| | - Claire Arnaud
- Univ. Grenoble Alpes, Inserm, CHU Grenoble Alpes, HP2, Grenoble, France
| | - Soazig Le Lay
- INSERM UMR1063, Oxidative Stress and Metabolic Pathologies, University of Angers, SFR ICAT, Angers, France
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18
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Détrait M, Bouyon S, Brasseur S, Godin-Ribuot D, Belaidi E, Arnaud C. Impact of cardiac sympathetic denervation on IH-induced ischemic cardiomyopathy aggravation. Archives of Cardiovascular Diseases Supplements 2020. [DOI: 10.1016/j.acvdsp.2020.03.120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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19
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Bourdier G, Détrait M, Bouyon S, Lemarié E, Brasseur S, Doutreleau S, Pépin J, Godin‐Ribuot D, Belaidi E, Arnaud C. Intermittent Hypoxia Triggers Early Cardiac Remodeling and Contractile Dysfunction in the Time-Course of Ischemic Cardiomyopathy in Rats. J Am Heart Assoc 2020; 9:e016369. [PMID: 32805159 PMCID: PMC7660805 DOI: 10.1161/jaha.120.016369] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND Sleep-disordered breathing is associated with a poor prognosis (mortality) in patients with ischemic cardiomyopathy. The understanding of mechanisms linking intermittent hypoxia (IH), the key feature of sleep-disordered breathing, to ischemic cardiomyopathy progression is crucial for identifying specific actionable therapeutic targets. The aims of the present study were (1) to evaluate the impact of IH on the time course evolution of cardiac remodeling and contractile dysfunction in a rat model of ischemic cardiomyopathy; and (2) to determine the impact of IH on sympathetic activity, hypoxia inducible factor-1 activation, and endoplasmic reticulum stress in the time course of ischemic cardiomyopathy progression. METHODS AND RESULTS Ischemic cardiomyopathy was induced by a permanent ligature of the left coronary artery in male Wistar rats (rats with myocardial infarction). Rats with myocardial infarction were then exposed to either IH or normoxia for up to 12 weeks. Cardiac remodeling and function were analyzed by Sirius red and wheat germ agglutinin staining, ultrasonography, and cardiac catheterization. Sympathetic activity was evaluated by spectral analysis of blood pressure variability. Hypoxia-inducible factor-1α activation and burden of endoplasmic reticulum stress were characterized by Western blots. Long-term IH exposure precipitated cardiac remodeling (hypertrophy and interstitial fibrosis) and contractile dysfunction during the time course evolution of ischemic cardiomyopathy in rodents. Among associated mechanisms, we identified the early occurrence and persistence of sympathetic activation, associated with sustained hypoxia-inducible factor-1α expression and a delayed pro-apoptotic endoplasmic reticulum stress. CONCLUSIONS Our data provide the demonstration of the deleterious impact of IH on post-myocardial infarction remodeling and contractile dysfunction. Further studies are needed to evaluate whether targeting sympathetic nervous system or HIF-1 overactivities could limit these effects and improve management of coexisting ischemic cardiomyopathy and sleep-disordered breathing.
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Affiliation(s)
| | - Maximin Détrait
- Univ. Grenoble AlpesINSERMCHU Grenoble AlpesHP2GrenobleFrance
| | - Sophie Bouyon
- Univ. Grenoble AlpesINSERMCHU Grenoble AlpesHP2GrenobleFrance
| | - Emeline Lemarié
- Univ. Grenoble AlpesINSERMCHU Grenoble AlpesHP2GrenobleFrance
| | | | | | | | | | - Elise Belaidi
- Univ. Grenoble AlpesINSERMCHU Grenoble AlpesHP2GrenobleFrance
| | - Claire Arnaud
- Univ. Grenoble AlpesINSERMCHU Grenoble AlpesHP2GrenobleFrance
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20
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Chacaroun S, Borowik A, Doutreleau S, Belaidi E, Wuyam B, Tamisier R, Pépin JL, Flore P, Verges S. Cardiovascular and metabolic responses to passive hypoxic conditioning in overweight and mildly obese individuals. Am J Physiol Regul Integr Comp Physiol 2020; 319:R211-R222. [PMID: 32609532 DOI: 10.1152/ajpregu.00311.2019] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Although severe intermittent hypoxia (IH) is well known to induce deleterious cardiometabolic consequences, moderate IH may induce positive effects in obese individuals. The present study aimed to evaluate the effect of two hypoxic conditioning programs on cardiovascular and metabolic health status of overweight or obese individuals. In this randomized single-blind controlled study, 35 subjects (54 ± 9.3 yr, 31.7 ± 3.5 kg/m2) were randomized into three 8-wk interventions (three 1-h sessions per week): sustained hypoxia (SH), arterial oxygen saturation ([Formula: see text]) = 75%; IH, 5 min [Formula: see text] = 75% - 3 min normoxia; normoxia. Ventilation, heart rate, blood pressure, and tissue oxygenation were measured during the first and last hypoxic conditioning sessions. Vascular function, blood glucose and insulin, lipid profile, nitric oxide metabolites, and oxidative stress were evaluated before and after the interventions. Both SH and IH increased ventilation in hypoxia (+1.8 ± 2.1 and +2.3 ± 3.6 L/min, respectively; P < 0.05) and reduced normoxic diastolic blood pressure (-12 ± 15 and -13 ± 10 mmHg, respectively; P < 0.05), whereas changes in normoxic systolic blood pressure were not significant (+3 ± 9 and -6 ± 13 mmHg, respectively; P > 0.05). IH only reduced heart rate variability (e.g., root-mean-square difference of successive normal R-R intervals in normoxia -21 ± 35%; P < 0.05). Both SH and IH induced no significant change in body mass index, vascular function, blood glucose, insulin and lipid profile, nitric oxide metabolites, or oxidative stress, except for an increase in superoxide dismutase activity following SH. This study indicates that passive hypoxic conditioning in obese individuals induces some positive cardiovascular and respiratory improvements despite no change in anthropometric data and even a reduction in heart rate variability during IH exposure.
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Affiliation(s)
- Samarmar Chacaroun
- HP2 laboratory, Univiversité Grenoble Alpes, INSERM, CHU Grenoble Alpes, Grenoble, France
| | - Anna Borowik
- HP2 laboratory, Univiversité Grenoble Alpes, INSERM, CHU Grenoble Alpes, Grenoble, France
| | - Stephane Doutreleau
- HP2 laboratory, Univiversité Grenoble Alpes, INSERM, CHU Grenoble Alpes, Grenoble, France
| | - Elise Belaidi
- HP2 laboratory, Univiversité Grenoble Alpes, INSERM, CHU Grenoble Alpes, Grenoble, France
| | - Bernard Wuyam
- HP2 laboratory, Univiversité Grenoble Alpes, INSERM, CHU Grenoble Alpes, Grenoble, France
| | - Renaud Tamisier
- HP2 laboratory, Univiversité Grenoble Alpes, INSERM, CHU Grenoble Alpes, Grenoble, France
| | - Jean-Louis Pépin
- HP2 laboratory, Univiversité Grenoble Alpes, INSERM, CHU Grenoble Alpes, Grenoble, France
| | - Patrice Flore
- HP2 laboratory, Univiversité Grenoble Alpes, INSERM, CHU Grenoble Alpes, Grenoble, France
| | - Samuel Verges
- HP2 laboratory, Univiversité Grenoble Alpes, INSERM, CHU Grenoble Alpes, Grenoble, France
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Moulin S, Arnaud C, Bouyon S, Pépin JL, Godin-Ribuot D, Belaidi E. Curcumin prevents chronic intermittent hypoxia-induced myocardial injury. Ther Adv Chronic Dis 2020; 11:2040622320922104. [PMID: 32637058 PMCID: PMC7315663 DOI: 10.1177/2040622320922104] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Accepted: 03/24/2020] [Indexed: 01/14/2023] Open
Abstract
Background: Chronic intermittent hypoxia (IH), the hallmark feature of obstructive sleep apnoea syndrome, contributes to infarct size enhancement after myocardial ischemia–reperfusion (I/R). Curcumin (Curc), the natural pigment of Curcuma longa, has been demonstrated to be beneficial in the context of myocardial injury. In this study, we assessed the effects of Curc on the maladaptive cardiac response to IH, and particularly on IH-induced hypoxia inducible factor-1 (HIF-1) expression, oxidative stress, inflammation, endoplasmic reticulum (ER) stress and apoptosis. Methods: Swiss/SV129 mice were exposed to normoxia or IH (21–5% FiO2, 60 s cycles, 8 h per day, for 21 days) and treated orally with Curc (100 mg kg−1
day−1, oral gavage) or its vehicle. Mice were then either euthanised for heart sampling in order to perform biochemical and histological analysis, or subjected to an in vivo ischemia-reperfusion protocol in order to measure infarct size. Results: IH increased nuclear HIF-1α expression and superoxide anion (O2.–) production as well as nuclear factor kappa B (NF-kB) p65, glucose-regulated protein (Grp78) and C/EBP homologous protein (CHOP) expression. IH also induced apoptosis and increased infarct size after I/R . The IH-induced HIF-1 activation, oxidative stress, inflammation, ER stress and apoptosis were abolished by chronic Curc treatment. Curc also significantly decreased infarct size only in mice exposed to IH. Conclusion: Curc prevents IH-induced myocardial cell death signalling. Curc might be used as a combined therapy with continuous positive airway pressure in sleep apnoea patients with high cardiovascular risk.
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Affiliation(s)
- Sophie Moulin
- Université Grenoble Alpes-HP2-Grenoble F-38042, France / INSERM, U1042-Grenoble F38042, France
| | - Claire Arnaud
- Université Grenoble Alpes-HP2-Grenoble F-38042, France / INSERM, U1042-Grenoble F38042, France
| | - Sophie Bouyon
- Université Grenoble Alpes-HP2-Grenoble F-38042, France / INSERM, U1042-Grenoble F38042, France
| | - Jean-Louis Pépin
- Université Grenoble Alpes-HP2-Grenoble F-38042, France / INSERM, U1042-Grenoble F38042, France / Centre Hospitalier Universitaire des Alpes, Grenoble F38042, France
| | - Diane Godin-Ribuot
- Université Grenoble Alpes-HP2-Grenoble F-38042, France / INSERM, U1042-Grenoble F38042, France
| | - Elise Belaidi
- University Grenoble Alpes, Grenoble, France INSERM, U1042, Grenoble, France
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22
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Moulin S, Thomas A, Arnaud C, Arzt M, Wagner S, Maier LS, Pépin JL, Godin-Ribuot D, Gaucher J, Belaidi E. Cooperation Between Hypoxia-Inducible Factor 1α and Activating Transcription Factor 4 in Sleep Apnea-Mediated Myocardial Injury. Can J Cardiol 2020; 36:936-940. [PMID: 32387037 DOI: 10.1016/j.cjca.2020.04.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 04/01/2020] [Accepted: 04/01/2020] [Indexed: 01/21/2023] Open
Abstract
Chronic intermittent hypoxia (CIH) occurring during sleep apnea amplifies infarct size owing to ischemia-reperfusion. CIH activates hypoxia-inducible factor 1 (HIF-1) and activating transcription factor 4 (ATF4). However, whether HIF-1 and ATF4 interact to promote cardiomyocyte death remains unexplored. For the first time, we observed that in myocardium from apneic patients, CCAAT enhancer-binding protein homologous protein (CHOP) expression is increased and HIF-1α expression is correlated with sleep apnea severity. In mice, single-allele deletion of HIF-1α prevents CIH increase in CHOP expression and infarct size. We uncovered a physical interaction between HIF-1α and ATF4 in CIH that may represent a novel cardiomyocyte death complex.
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Affiliation(s)
- Sophie Moulin
- Laboratoire HP2, Institut National de la Santé et de la Recherche Médicale, Université Grenoble Alpes, Grenoble, France; Institut National de la Santé et de la Recherche Médicale U1042, Grenoble, France
| | - Amandine Thomas
- Laboratoire HP2, Institut National de la Santé et de la Recherche Médicale, Université Grenoble Alpes, Grenoble, France; Institut National de la Santé et de la Recherche Médicale U1042, Grenoble, France
| | - Claire Arnaud
- Laboratoire HP2, Institut National de la Santé et de la Recherche Médicale, Université Grenoble Alpes, Grenoble, France; Institut National de la Santé et de la Recherche Médicale U1042, Grenoble, France
| | - Michael Arzt
- Department of Internal Medicine II, University Hospital Regensburg, Regensburg, Germany
| | - Stefan Wagner
- Department of Internal Medicine II, University Hospital Regensburg, Regensburg, Germany
| | - Lars S Maier
- Department of Internal Medicine II, University Hospital Regensburg, Regensburg, Germany
| | - Jean-Louis Pépin
- Laboratoire HP2, Institut National de la Santé et de la Recherche Médicale, Université Grenoble Alpes, Grenoble, France; Institut National de la Santé et de la Recherche Médicale U1042, Grenoble, France; Centre Hospitalier Universitaire des Alpes, Grenoble, France
| | - Diane Godin-Ribuot
- Laboratoire HP2, Institut National de la Santé et de la Recherche Médicale, Université Grenoble Alpes, Grenoble, France; Institut National de la Santé et de la Recherche Médicale U1042, Grenoble, France
| | - Jonathan Gaucher
- Laboratoire HP2, Institut National de la Santé et de la Recherche Médicale, Université Grenoble Alpes, Grenoble, France; Institut National de la Santé et de la Recherche Médicale U1042, Grenoble, France
| | - Elise Belaidi
- Laboratoire HP2, Institut National de la Santé et de la Recherche Médicale, Université Grenoble Alpes, Grenoble, France; Institut National de la Santé et de la Recherche Médicale U1042, Grenoble, France.
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23
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Tourki B, Dumesnil A, Belaidi E, Ghrir S, Godin-Ribuot D, Marrakchi N, Richard V, Mulder P, Messadi E. Lebetin 2, a Snake Venom-Derived B-Type Natriuretic Peptide, Provides Immediate and Prolonged Protection against Myocardial Ischemia-Reperfusion Injury via Modulation of Post-Ischemic Inflammatory Response. Toxins (Basel) 2019; 11:toxins11090524. [PMID: 31510060 PMCID: PMC6784001 DOI: 10.3390/toxins11090524] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 08/08/2019] [Accepted: 08/16/2019] [Indexed: 12/11/2022] Open
Abstract
Myocardial infarction (MI) followed by left ventricular (LV) remodeling is the most frequent cause of heart failure. Lebetin 2 (L2), a snake venom-derived natriuretic peptide, exerts cardioprotection during acute myocardial ischemia-reperfusion (IR) ex vivo. However, its effects on delayed consequences of IR injury, including post-MI inflammation and fibrosis have not been defined. Here, we determined whether a single L2 injection exerts cardioprotection in IR murine models in vivo, and whether inflammatory response to ischemic injury plays a role in L2-induced effects. We quantified infarct size (IS), fibrosis, inflammation, and both endothelial cell and cardiomyocyte densities in injured myocardium and compared these values with those induced by B-type natriuretic peptide (BNP). Both L2 and BNP reduced IS, fibrosis, and inflammatory response after IR, as evidenced by decreased leukocyte and proinflammatory M1 macrophage infiltrations in the infarcted area compared to untreated animals. However, only L2 increased anti-inflammatory M2-like macrophages. L2 also induced a higher density of endothelial cells and cardiomyocytes. Our data show that L2 has strong, acute, prolonged cardioprotective effects in post-MI that are mediated, at least in part, by the modulation of the post-ischemic inflammatory response and especially, by the enhancement of M2-like macrophages, thus reducing IR-induced necrotic and fibrotic effects.
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Affiliation(s)
- Bochra Tourki
- Laboratoire des Venins et Biomolécules Thérapeutiques (LR11IPT08) et Plateforme de Physiologie et de Physiopathologie Cardiovasculaires (P2C), Institut Pasteur de Tunis, Université Tunis El Manar, 1068 Tunis, Tunisia.
- Université Carthage Tunis, 1054 Bizerte, Tunisia.
| | - Anais Dumesnil
- Normandie Univ, UNIROUEN, Inserm U1096, FHU REMOD-VHF, 76000 Rouen, France.
| | - Elise Belaidi
- Université Grenoble Alpes, Inserm U1042, Laboratoire HP2, 38000 Grenoble, France.
| | - Slim Ghrir
- Laboratoire des Venins et Biomolécules Thérapeutiques (LR11IPT08) et Plateforme de Physiologie et de Physiopathologie Cardiovasculaires (P2C), Institut Pasteur de Tunis, Université Tunis El Manar, 1068 Tunis, Tunisia.
| | - Diane Godin-Ribuot
- Université Grenoble Alpes, Inserm U1042, Laboratoire HP2, 38000 Grenoble, France.
| | - Naziha Marrakchi
- Laboratoire des Venins et Biomolécules Thérapeutiques (LR11IPT08) et Plateforme de Physiologie et de Physiopathologie Cardiovasculaires (P2C), Institut Pasteur de Tunis, Université Tunis El Manar, 1068 Tunis, Tunisia.
| | - Vincent Richard
- Normandie Univ, UNIROUEN, Inserm U1096, FHU REMOD-VHF, 76000 Rouen, France.
| | - Paul Mulder
- Normandie Univ, UNIROUEN, Inserm U1096, FHU REMOD-VHF, 76000 Rouen, France.
| | - Erij Messadi
- Laboratoire des Venins et Biomolécules Thérapeutiques (LR11IPT08) et Plateforme de Physiologie et de Physiopathologie Cardiovasculaires (P2C), Institut Pasteur de Tunis, Université Tunis El Manar, 1068 Tunis, Tunisia.
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Le Roux-Mallouf T, Laurent J, Besset D, Marillier M, Larribaut J, Belaidi E, Corne C, Doutreleau S, Verges S. Effects of acute nitric oxide precursor intake on peripheral and central fatigue during knee extensions in healthy men. Exp Physiol 2019; 104:1100-1114. [PMID: 31004378 DOI: 10.1113/ep087493] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Accepted: 04/18/2019] [Indexed: 11/08/2022]
Abstract
NEW FINDINGS What is the central question of this study? What is the effect of acute NO precursor intake on vascular function, muscle and cerebral oxygenation and peripheral and central neuromuscular fatigue during knee-extension exercise? What is the main finding and its importance? Acute NO precursor ingestion increases the plasma concentrations of NO precursors (nitrate, arginine and citrulline) and enhances post-ischaemic vasodilatation, but has no significant effect on muscle and cerebral oxygenation, peripheral and central mechanisms of neuromuscular fatigue and, consequently, does not improve exercise performance. ABSTRACT Nitric oxide (NO) plays an important role in matching blood flow to oxygen demand in the brain and contracting muscles during exercise. Previous studies have shown that increasing NO bioavailability can improve muscle function. The aim of this study was to assess the effect of acute NO precursor intake on muscle and cerebral oxygenation and on peripheral and central neuromuscular fatigue during exercise. In four experimental sessions, 15 healthy men performed a thigh ischaemia-reperfusion test followed by submaximal isometric knee extensions (5 s on-4 s off; 45% of maximal voluntary contraction) until task failure. In each session, subjects drank a nitrate-rich beetroot juice containing 520 mg nitrate (N), N and citrulline (6 g; N+C), N and arginine (6 g; N+A) or a placebo (PLA). Prefrontal cortex and quadriceps near-infrared spectroscopy parameters were monitored continuously. Transcranial magnetic stimulation and femoral nerve electrical stimulation were used to assess central and peripheral determinants of fatigue. The post-ischaemic increase in thigh blood total haemoglobin concentration was larger in N (10.1 ± 3.7 mmol) and N+C (10.9 ± 3.3 mmol) compared with PLA (8.2 ± 2.7 mmol; P < 0.05). Nitric oxide precursors had no significant effect on muscle and cerebral oxygenation or on peripheral and central mechanisms of neuromuscular fatigue during exercise. The total number of knee extensions did not differ between sessions (N, 71.9 ± 33.2; N+A, 73.3 ± 39.4; N+C, 74.6 ± 34.0; PLA, 71.8 ± 39.9; P > 0.05). In contrast to the post-ischaemic hyperaemic response, NO bioavailability in healthy subjects might not be the limiting factor for tissue perfusion and oxygenation during submaximal knee extensions to task failure.
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Affiliation(s)
| | - Julien Laurent
- Laboratoire HP2 (U1042 INSERM), Université, Grenoble Alpes, Grenoble, France
| | - Dimitri Besset
- Laboratoire HP2 (U1042 INSERM), Université, Grenoble Alpes, Grenoble, France
| | - Mathieu Marillier
- Laboratoire HP2 (U1042 INSERM), Université, Grenoble Alpes, Grenoble, France
| | - Julie Larribaut
- Laboratoire HP2 (U1042 INSERM), Université, Grenoble Alpes, Grenoble, France
| | - Elise Belaidi
- Laboratoire HP2 (U1042 INSERM), Université, Grenoble Alpes, Grenoble, France
| | - Christelle Corne
- Inherited Metabolic Disease Laboratory, Department of Biochemistry, Molecular and Environmental Toxicology Biology, Biology and Pathology Institute, Hôpital Michallon, Grenoble, France
| | - Stéphane Doutreleau
- Laboratoire HP2 (U1042 INSERM), Université, Grenoble Alpes, Grenoble, France.,Sport and Pathologies Unit, Grenoble Alpes University Hospital, Hôpital Michallon, Grenoble, France
| | - Samuel Verges
- Laboratoire HP2 (U1042 INSERM), Université, Grenoble Alpes, Grenoble, France.,Sport and Pathologies Unit, Grenoble Alpes University Hospital, Hôpital Michallon, Grenoble, France
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Breuillard C, Moulin S, Bouyon S, Couchet M, Maillard G, Moinard C, Belaidi E. Apnée du sommeil et dénutrition : une étude préliminaire. NUTR CLIN METAB 2018. [DOI: 10.1016/j.nupar.2018.09.142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Thomas A, Belaidi E, Moulin S, Horman S, van der Zon GC, Viollet B, Levy P, Bertrand L, Pepin JL, Godin-Ribuot D, Guigas B. Chronic Intermittent Hypoxia Impairs Insulin Sensitivity but Improves Whole-Body Glucose Tolerance by Activating Skeletal Muscle AMPK. Diabetes 2017; 66:2942-2951. [PMID: 28882901 DOI: 10.2337/db17-0186] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2017] [Accepted: 08/30/2017] [Indexed: 11/13/2022]
Abstract
Obstructive sleep apnea syndrome is a highly prevalent disease resulting in transient respiratory arrest and chronic intermittent hypoxia (cIH). cIH is associated with insulin resistance and impaired metabolic homeostasis in rodents and humans, but the exact underlying mechanisms remain unclear. In the current study, we investigated the effects of 2 weeks of cIH (1-min cycle, fraction of inspired oxygen 21-5%, 8 h/day) on whole-body insulin sensitivity and glucose tolerance in lean mice. Although food intake and body weight were reduced compared with normoxia, cIH induced systemic insulin resistance in a hypoxia-inducible factor 1-independent manner and impaired insulin signaling in liver, white adipose tissue, and skeletal muscle. Unexpectedly, cIH improved whole-body glucose tolerance independently of changes in body weight and glucose-induced insulin response. This effect was associated with elevated phosphorylation of Thr172-AMPK and Ser237-TBC1 domain family member 1 (TBC1D1) in skeletal muscle, suggesting a tissue-specific AMPK-dependent increase in TBC1D1-driven glucose uptake. Remarkably, although food intake, body weight, and systemic insulin sensitivity were still affected, the improvement in glucose tolerance by cIH was abolished in muscle-specific AMPKα1α2-deficient mice. We conclude that cIH impairs insulin sensitivity while improving whole-body glucose tolerance by promoting specific activation of the skeletal muscle AMPK pathway.
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Affiliation(s)
- Amandine Thomas
- Laboratoire HP2, Université Grenoble Alpes, Grenoble, France
- INSERM U1042, Grenoble, France
| | - Elise Belaidi
- Laboratoire HP2, Université Grenoble Alpes, Grenoble, France
- INSERM U1042, Grenoble, France
| | - Sophie Moulin
- Laboratoire HP2, Université Grenoble Alpes, Grenoble, France
- INSERM U1042, Grenoble, France
| | - Sandrine Horman
- Pole of Cardiovascular Research, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Brussels, Belgium
| | - Gerard C van der Zon
- Department of Molecular Cell Biology, Leiden University Medical Center, Leiden, the Netherlands
| | - Benoit Viollet
- Institut Cochin, INSERM U1016, Paris, France
- CNRS UMR8104, Paris, France
- Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Patrick Levy
- Laboratoire HP2, Université Grenoble Alpes, Grenoble, France
- INSERM U1042, Grenoble, France
| | - Luc Bertrand
- Pole of Cardiovascular Research, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Brussels, Belgium
| | - Jean-Louis Pepin
- Laboratoire HP2, Université Grenoble Alpes, Grenoble, France
- INSERM U1042, Grenoble, France
| | - Diane Godin-Ribuot
- Laboratoire HP2, Université Grenoble Alpes, Grenoble, France
- INSERM U1042, Grenoble, France
| | - Bruno Guigas
- Department of Molecular Cell Biology, Leiden University Medical Center, Leiden, the Netherlands
- Department of Parasitology, Leiden University Medical Center, Leiden, the Netherlands
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Breuillard C, Moulin S, Bouyon S, Couchet M, Maillard G, Moinard C, Belaidi E. OR14: Obstructive Sleep Apnea and Malnutrition: A Preliminary Study. Clin Nutr 2017. [DOI: 10.1016/s0261-5614(17)30773-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Tourki B, Matéo P, Morand J, Elayeb M, Godin-Ribuot D, Marrakchi N, Belaidi E, Messadi E. Lebetin 2, a Snake Venom-Derived Natriuretic Peptide, Attenuates Acute Myocardial Ischemic Injury through the Modulation of Mitochondrial Permeability Transition Pore at the Time of Reperfusion. PLoS One 2016; 11:e0162632. [PMID: 27618302 PMCID: PMC5019389 DOI: 10.1371/journal.pone.0162632] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [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: 05/31/2016] [Accepted: 08/25/2016] [Indexed: 12/28/2022] Open
Abstract
Cardiac ischemia is one of the leading causes of death worldwide. It is now well established that natriuretic peptides can attenuate the development of irreversible ischemic injury during myocardial infarction. Lebetin 2 (L2) is a new discovered peptide isolated from Macrovipera lebetina venom with structural similarity to B-type natriuretic peptide (BNP). Our objectives were to define the acute cardioprotective actions of L2 in isolated Langendorff-perfused rat hearts after regional or global ischemia-reperfusion (IR). We studied infarct size, left ventricular contractile recovery, survival protein kinases and mitochondrial permeability transition pore (mPTP) opening in injured myocardium. L2 dosage was determined by preliminary experiments at its ability to induce cyclic guanosine monophosphate (cGMP) release without changing hemodynamic effects in normoxic hearts. L2 was found to be as effective as BNP in reducing infarct size after the induction of either regional or global IR. Both peptides equally improved contractile recovery after regional IR, but only L2 increased coronary flow and reduced severe contractile dysfunction after global ischemia. Cardioprotection afforded by L2 was abolished after isatin or 5-hydroxydecanote pretreatment suggesting the involvement of natriuretic peptide receptors and mitochondrial KATP (mitoKATP) channels in the L2-induced effects. L2 also increased survival protein expression in the reperfused myocardium as evidenced by phosphorylation of signaling pathways PKCε/ERK/GSK3β and PI3K/Akt/eNOS. IR induced mitochondrial pore opening, but this effect was markedly prevented by L2 treatment. These data show that L2 has strong cardioprotective effect in acute ischemia through stimulation of natriuretic peptide receptors. These beneficial effects are mediated, at least in part, by mitoKATP channel opening and downstream activated survival kinases, thus delaying mPTP opening and improving IR-induced mitochondrial dysfunction.
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Affiliation(s)
- Bochra Tourki
- Laboratoire des Venins et Biomolécules Thérapeutiques (LR11IPT08) et Plateforme de Physiologie et de Physiopathologie Cardiovasculaires (P2C), Institut Pasteur de Tunis, Université Tunis El Manar, Tunis, Tunisia
- Université Carthage Tunis, Bizerte, Tunisia
| | - Philippe Matéo
- Laboratoire de Signalisation et Physiopathologie Cardiovasculaire, UMR-S 1180, Faculté de Pharmacie, Université Paris Sud, Paris, France
| | - Jessica Morand
- Laboratoire d’Hypoxie et Physiopathologie Cardiaque, Inserm U1042, Faculté de Pharmacie, Université Grenoble Alpes, Grenoble, France
| | - Mohamed Elayeb
- Laboratoire des Venins et Biomolécules Thérapeutiques (LR11IPT08) et Plateforme de Physiologie et de Physiopathologie Cardiovasculaires (P2C), Institut Pasteur de Tunis, Université Tunis El Manar, Tunis, Tunisia
| | - Diane Godin-Ribuot
- Laboratoire d’Hypoxie et Physiopathologie Cardiaque, Inserm U1042, Faculté de Pharmacie, Université Grenoble Alpes, Grenoble, France
| | - Naziha Marrakchi
- Laboratoire des Venins et Biomolécules Thérapeutiques (LR11IPT08) et Plateforme de Physiologie et de Physiopathologie Cardiovasculaires (P2C), Institut Pasteur de Tunis, Université Tunis El Manar, Tunis, Tunisia
| | - Elise Belaidi
- Laboratoire d’Hypoxie et Physiopathologie Cardiaque, Inserm U1042, Faculté de Pharmacie, Université Grenoble Alpes, Grenoble, France
| | - Erij Messadi
- Laboratoire des Venins et Biomolécules Thérapeutiques (LR11IPT08) et Plateforme de Physiologie et de Physiopathologie Cardiovasculaires (P2C), Institut Pasteur de Tunis, Université Tunis El Manar, Tunis, Tunisia
- * E-mail:
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Kleindienst A, Battault S, Belaidi E, Tanguy S, Rosselin M, Boulghobra D, Meyer G, Gayrard S, Walther G, Geny B, Durand G, Cazorla O, Reboul C. Exercise does not activate the β3 adrenergic receptor–eNOS pathway, but reduces inducible NOS expression to protect the heart of obese diabetic mice. Basic Res Cardiol 2016; 111:40. [DOI: 10.1007/s00395-016-0559-0] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Accepted: 05/03/2016] [Indexed: 02/08/2023]
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Rieusset J, Fauconnier J, Paillard M, Belaidi E, Tubbs E, Chauvin MA, Durand A, Bravard A, Teixeira G, Bartosch B, Michelet M, Theurey P, Vial G, Demion M, Blond E, Zoulim F, Gomez L, Vidal H, Lacampagne A, Ovize M. Disruption of calcium transfer from ER to mitochondria links alterations of mitochondria-associated ER membrane integrity to hepatic insulin resistance. Diabetologia 2016; 59:614-23. [PMID: 26660890 DOI: 10.1007/s00125-015-3829-8] [Citation(s) in RCA: 107] [Impact Index Per Article: 13.4] [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: 06/25/2015] [Accepted: 11/17/2015] [Indexed: 12/24/2022]
Abstract
AIMS/HYPOTHESIS Mitochondria-associated endoplasmic reticulum membranes (MAMs) are regions of the endoplasmic reticulum (ER) tethered to mitochondria and controlling calcium (Ca(2+)) transfer between both organelles through the complex formed between the voltage-dependent anion channel, glucose-regulated protein 75 and inositol 1,4,5-triphosphate receptor (IP3R). We recently identified cyclophilin D (CYPD) as a new partner of this complex and demonstrated a new role for MAMs in the control of insulin's action in the liver. Here, we report on the mechanisms by which disruption of MAM integrity induces hepatic insulin resistance in CypD (also known as Ppif)-knockout (KO) mice. METHODS We used either in vitro pharmacological and genetic inhibition of CYPD in HuH7 cells or in vivo loss of CYPD in mice to investigate ER-mitochondria interactions, inter-organelle Ca(2+) exchange, organelle homeostasis and insulin action. RESULTS Pharmacological and genetic inhibition of CYPD concomitantly reduced ER-mitochondria interactions, inhibited inter-organelle Ca(2+) exchange, induced ER stress and altered insulin signalling in HuH7 cells. In addition, histamine-stimulated Ca(2+) transfer from ER to mitochondria was blunted in isolated hepatocytes of CypD-KO mice and this was associated with an increase in ER calcium store. Interestingly, disruption of inter-organelle Ca(2+) transfer was associated with ER stress, mitochondrial dysfunction, lipid accumulation, activation of c-Jun N-terminal kinase (JNK) and protein kinase C (PKC)ε and insulin resistance in liver of CypD-KO mice. Finally, CYPD-related alterations of insulin signalling were mediated by activation of PKCε rather than JNK in HuH7 cells. CONCLUSIONS/INTERPRETATION Disruption of IP3R-mediated Ca(2+) signalling in the liver of CypD-KO mice leads to hepatic insulin resistance through disruption of organelle interaction and function, increase in lipid accumulation and activation of PKCε. Modulation of ER-mitochondria Ca(2+) exchange may thus provide an exciting new avenue for treating hepatic insulin resistance.
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Affiliation(s)
- Jennifer Rieusset
- Inserm UMR-1060, Laboratoire CarMeN, Université Lyon 1, 165 chemin du grand Revoyet, BP12, 69921, Oullins cedex, France.
| | - Jeremy Fauconnier
- Inserm U1046-CNRS UMR-9214, PhyMedExp, Université Montpellier, Montpellier, France
| | - Melanie Paillard
- Inserm UMR-1060, Laboratoire CarMeN, Université Lyon 1, 165 chemin du grand Revoyet, BP12, 69921, Oullins cedex, France
| | - Elise Belaidi
- Inserm UMR-1060, Laboratoire CarMeN, Université Lyon 1, 165 chemin du grand Revoyet, BP12, 69921, Oullins cedex, France
| | - Emily Tubbs
- Inserm UMR-1060, Laboratoire CarMeN, Université Lyon 1, 165 chemin du grand Revoyet, BP12, 69921, Oullins cedex, France
| | - Marie-Agnès Chauvin
- Inserm UMR-1060, Laboratoire CarMeN, Université Lyon 1, 165 chemin du grand Revoyet, BP12, 69921, Oullins cedex, France
| | - Annie Durand
- Inserm UMR-1060, Laboratoire CarMeN, Université Lyon 1, 165 chemin du grand Revoyet, BP12, 69921, Oullins cedex, France
| | - Amélie Bravard
- Inserm UMR-1060, Laboratoire CarMeN, Université Lyon 1, 165 chemin du grand Revoyet, BP12, 69921, Oullins cedex, France
| | - Geoffrey Teixeira
- Inserm UMR-1060, Laboratoire CarMeN, Université Lyon 1, 165 chemin du grand Revoyet, BP12, 69921, Oullins cedex, France
| | - Birke Bartosch
- Inserm UMR-1052, Centre de recherche en Cancérologie de Lyon, Université Lyon 1, Lyon, France
| | - Maud Michelet
- Inserm UMR-1052, Centre de recherche en Cancérologie de Lyon, Université Lyon 1, Lyon, France
| | - Pierre Theurey
- Inserm UMR-1060, Laboratoire CarMeN, Université Lyon 1, 165 chemin du grand Revoyet, BP12, 69921, Oullins cedex, France
| | - Guillaume Vial
- Inserm UMR-1060, Laboratoire CarMeN, Université Lyon 1, 165 chemin du grand Revoyet, BP12, 69921, Oullins cedex, France
| | - Marie Demion
- Inserm U1046-CNRS UMR-9214, PhyMedExp, Université Montpellier, Montpellier, France
| | - Emilie Blond
- Inserm UMR-1060, Laboratoire CarMeN, Université Lyon 1, 165 chemin du grand Revoyet, BP12, 69921, Oullins cedex, France
- Hospices Civils de Lyon, Lyon, France
| | - Fabien Zoulim
- Inserm UMR-1052, Centre de recherche en Cancérologie de Lyon, Université Lyon 1, Lyon, France
- Hospices Civils de Lyon, Lyon, France
| | - Ludovic Gomez
- Inserm UMR-1060, Laboratoire CarMeN, Université Lyon 1, 165 chemin du grand Revoyet, BP12, 69921, Oullins cedex, France
| | - Hubert Vidal
- Inserm UMR-1060, Laboratoire CarMeN, Université Lyon 1, 165 chemin du grand Revoyet, BP12, 69921, Oullins cedex, France
| | - Alain Lacampagne
- Inserm U1046-CNRS UMR-9214, PhyMedExp, Université Montpellier, Montpellier, France
| | - Michel Ovize
- Inserm UMR-1060, Laboratoire CarMeN, Université Lyon 1, 165 chemin du grand Revoyet, BP12, 69921, Oullins cedex, France
- Hospices Civils de Lyon, Lyon, France
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Belaidi E, Thomas A, Bourdier G, Moulin S, Lemarié E, Levy P, Pépin JL, Korichneva I, Godin-Ribuot D, Arnaud C. Endoplasmic reticulum stress as a novel inducer of hypoxia inducible factor-1 activity: its role in the susceptibility to myocardial ischemia-reperfusion induced by chronic intermittent hypoxia. Int J Cardiol 2016; 210:45-53. [PMID: 26922713 DOI: 10.1016/j.ijcard.2016.02.096] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Revised: 02/09/2016] [Accepted: 02/14/2016] [Indexed: 12/30/2022]
Abstract
BACKGROUND Obstructive sleep apnea (OSA) is a highly prevalent disease and a risk factor for myocardial infarction expansion in humans. Intermittent hypoxia (IH) is known to be the most important OSA feature in terms of cardiovascular morbi-mortality. Since ER stress and HIF-1 are known to be involved in cardiomyocyte life or death, this study investigates the role of ER stress on HIF-1 activation in myocardial susceptibility to ischemia-reperfusion (I/R) induced by IH. METHODS C57Bl6J, HIF-1α(+/-) and their respective control mice were exposed to 14 days of IH (21-5% FiO2, 60 scycle, 8h/day). Myocardial inter-organelle calcium exchanges, ER stress and HIF-1 activity were investigated and in vivo I/R was performed to measure infarct size. In additional groups, tauroursodeoxycholic acid (TUDCA, 75 mg·kg(-1)), an ER stress inhibitor, was administered daily during exposure. RESULTS In C57Bl6J mice, chronic IH induced an increase in ER-Ca(2+) content, ER stress markers and HIF-1 activity, associated with an enhanced infarct size (33.7 ± 9.4 vs. 61.0 ± 5.6% in N and IH, respectively, p<0.05). IH failed to increase infarct size in HIF-1α deficient mice (42.4 ± 2.7 and 24.7 ± 3.4% N and IH, respectively). Finally, TUDCA totally abolished the IH-induced increase in HIF-1 activity (1.3 ± 0.04 vs. 0.14 ± 0.02 fold increase in IH vs. IH-TUDCA respectively, p<0.0001) and in infarct size (55.5 ± 7.6 vs. 49.9 ± 3.0 in N-TUDCA and IH-TUDCA, respectively). CONCLUSION This novel regulatory mechanism of HIF-1 activity by ER stress should be considered as a potential diagnostic tool for cardiovascular complications in OSA patients as well as a therapeutic target to limit myocardial ischemic damage.
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Affiliation(s)
- Elise Belaidi
- Université Grenoble Alpes, Laboratoire HP2, Grenoble F-38042, France; INSERM, U1042, Grenoble F-38042, France.
| | - Amandine Thomas
- Université Grenoble Alpes, Laboratoire HP2, Grenoble F-38042, France; INSERM, U1042, Grenoble F-38042, France
| | - Guillaume Bourdier
- Université Grenoble Alpes, Laboratoire HP2, Grenoble F-38042, France; INSERM, U1042, Grenoble F-38042, France
| | - Sophie Moulin
- Université Grenoble Alpes, Laboratoire HP2, Grenoble F-38042, France; INSERM, U1042, Grenoble F-38042, France
| | - Emeline Lemarié
- Université Grenoble Alpes, Laboratoire HP2, Grenoble F-38042, France; INSERM, U1042, Grenoble F-38042, France
| | - Patrick Levy
- Université Grenoble Alpes, Laboratoire HP2, Grenoble F-38042, France; INSERM, U1042, Grenoble F-38042, France
| | - Jean-Louis Pépin
- Université Grenoble Alpes, Laboratoire HP2, Grenoble F-38042, France; INSERM, U1042, Grenoble F-38042, France
| | - Irina Korichneva
- Université Picardie, Laboratoire de biologie cellulaire moléculaire, Amiens 80000, France
| | - Diane Godin-Ribuot
- Université Grenoble Alpes, Laboratoire HP2, Grenoble F-38042, France; INSERM, U1042, Grenoble F-38042, France
| | - Claire Arnaud
- Université Grenoble Alpes, Laboratoire HP2, Grenoble F-38042, France; INSERM, U1042, Grenoble F-38042, France
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Gras E, Belaidi E, Briançon-Marjollet A, Pépin JL, Arnaud C, Godin-Ribuot D. Endothelin-1 mediates intermittent hypoxia-induced inflammatory vascular remodeling through HIF-1 activation. J Appl Physiol (1985) 2015; 120:437-43. [PMID: 26679613 DOI: 10.1152/japplphysiol.00641.2015] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Accepted: 12/16/2015] [Indexed: 02/04/2023] Open
Abstract
Obstructive sleep apnea (OSA) is a major risk factor for cardiovascular mortality, and apnea-induced intermittent hypoxia (IH) is known to promote various cardiovascular alterations such as vascular remodeling. However, the mechanisms that underlie IH remain incompletely investigated. We previously demonstrated that the hypoxia-inducible factor-1 (HIF-1) and endothelin-1 (ET-1) are involved in arterial hypertension and myocardial susceptibility to infarction induced by IH. Thus the objective of the present study was to investigate whether both ET-1 and HIF-1 were also involved in the vascular inflammatory remodeling induced by IH. Mice partially deficient for the Hif1α gene (HIF-1α(+/-)) and their wild-type equivalents, as well as C57BL/6J mice, treated or not with bosentan, a dual endothelin receptor antagonist, were exposed to IH or normoxia for 2 wk, 8 h/day. Splenocyte proliferative and secretory capacities, aortic nuclear factor-κB (NF-κB) and HIF-1 activities, and expression of cytokines and intima-media thickness (IMT) were measured. IH induced a systemic and aortic inflammation characterized by an increase in splenocyte proliferative and secretory capacities, aortic NF-κB activity, and cytokine expression in the aortic wall. This was accompanied by an increase in IMT. These modifications were prevented in HIF-1α(+/-) and bosentan-treated mice. The results of this study suggest that ET-1 is a major contributor to the vascular inflammatory remodeling induced by OSA-related IH, probably through HIF-1-dependent activation of NF-κB.
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Affiliation(s)
- Emmanuelle Gras
- Université Grenoble Alpes, Laboratoire HP2, Grenoble, France; INSERM, U1042, Grenoble, France; and
| | - Elise Belaidi
- Université Grenoble Alpes, Laboratoire HP2, Grenoble, France; INSERM, U1042, Grenoble, France; and
| | - Anne Briançon-Marjollet
- Université Grenoble Alpes, Laboratoire HP2, Grenoble, France; INSERM, U1042, Grenoble, France; and
| | - Jean-Louis Pépin
- Université Grenoble Alpes, Laboratoire HP2, Grenoble, France; INSERM, U1042, Grenoble, France; and CHU de Grenoble, Grenoble, France
| | - Claire Arnaud
- Université Grenoble Alpes, Laboratoire HP2, Grenoble, France; INSERM, U1042, Grenoble, France; and
| | - Diane Godin-Ribuot
- Université Grenoble Alpes, Laboratoire HP2, Grenoble, France; INSERM, U1042, Grenoble, France; and
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Bourdier G, Flore P, Sanchez H, Pepin JL, Belaidi E, Arnaud C. High-intensity training reduces intermittent hypoxia-induced ER stress and myocardial infarct size. Am J Physiol Heart Circ Physiol 2015; 310:H279-89. [PMID: 26566725 DOI: 10.1152/ajpheart.00448.2015] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Accepted: 11/09/2015] [Indexed: 12/25/2022]
Abstract
Chronic intermittent hypoxia (IH) is described as the major detrimental factor leading to cardiovascular morbimortality in obstructive sleep apnea (OSA) patients. OSA patients exhibit increased infarct size after a myocardial event, and previous animal studies have shown that chronic IH could be the main mechanism. Endoplasmic reticulum (ER) stress plays a major role in the pathophysiology of cardiovascular disease. High-intensity training (HIT) exerts beneficial effects on the cardiovascular system. Thus, we hypothesized that HIT could prevent IH-induced ER stress and the increase in infarct size. Male Wistar rats were exposed to 21 days of IH (21-5% fraction of inspired O2, 60-s cycle, 8 h/day) or normoxia. After 1 wk of IH alone, rats were submitted daily to both IH and HIT (2 × 24 min, 15-30m/min). Rat hearts were either rapidly frozen to evaluate ER stress by Western blot analysis or submitted to an ischemia-reperfusion protocol ex vivo (30 min of global ischemia/120 min of reperfusion). IH induced cardiac proapoptotic ER stress, characterized by increased expression of glucose-regulated protein kinase 78, phosphorylated protein kinase-like ER kinase, activating transcription factor 4, and C/EBP homologous protein. IH-induced myocardial apoptosis was confirmed by increased expression of cleaved caspase-3. These IH-associated proapoptotic alterations were associated with a significant increase in infarct size (35.4 ± 3.2% vs. 22.7 ± 1.7% of ventricles in IH + sedenary and normoxia + sedentary groups, respectively, P < 0.05). HIT prevented both the IH-induced proapoptotic ER stress and increased myocardial infarct size (28.8 ± 3.9% and 21.0 ± 5.1% in IH + HIT and normoxia + HIT groups, respectively, P = 0.28). In conclusion, these findings suggest that HIT could represent a preventive strategy to limit IH-induced myocardial ischemia-reperfusion damages in OSA patients.
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Affiliation(s)
- Guillaume Bourdier
- Grenoble Alpes University, HP2 Laboratory, Grenoble, France; Institut National de la Santé et de la Recherche Médicale, U1042, Grenoble, France; and
| | - Patrice Flore
- Grenoble Alpes University, HP2 Laboratory, Grenoble, France; Institut National de la Santé et de la Recherche Médicale, U1042, Grenoble, France; and
| | - Hervé Sanchez
- Institut de Recherche Biomédicale des Armées, Operational Environments, Brétigny/Orge, France
| | - Jean-Louis Pepin
- Grenoble Alpes University, HP2 Laboratory, Grenoble, France; Institut National de la Santé et de la Recherche Médicale, U1042, Grenoble, France; and
| | - Elise Belaidi
- Grenoble Alpes University, HP2 Laboratory, Grenoble, France; Institut National de la Santé et de la Recherche Médicale, U1042, Grenoble, France; and
| | - Claire Arnaud
- Grenoble Alpes University, HP2 Laboratory, Grenoble, France; Institut National de la Santé et de la Recherche Médicale, U1042, Grenoble, France; and
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35
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Youcef G, Belaidi E, Waeckel L, Fazal L, Clemessy M, Vincent MP, Zadigue G, Richer C, Alhenc-Gelas F, Ovize M, Pizard A. Tissue kallikrein is required for the cardioprotective effect of cyclosporin A in myocardial ischemia in the mouse. Biochem Pharmacol 2015; 94:22-9. [PMID: 25623731 DOI: 10.1016/j.bcp.2015.01.007] [Citation(s) in RCA: 6] [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] [Subscribe] [Scholar Register] [Received: 12/10/2014] [Revised: 01/08/2015] [Accepted: 01/16/2015] [Indexed: 10/24/2022]
Abstract
Clinical and experimental studies suggest that pharmacological postconditioning with Cyclosporin A (CsA) reduces infarct size in cardiac ischemia and reperfusion. CsA interacts with Cyclophilin D (CypD) preventing opening of the mitochondrial permeability transition pore (mPTP). Tissue kallikrein (TK) and its products kinins are involved in cardioprotection in ischemia. CypD knockout mice are resistant to the cardioprotective effects of both CsA and kinins suggesting common mechanisms of action. Using TK gene knockout mice, we investigated whether the kallikrein-kinin system is involved in the cardioprotective effect of CsA. Homozygote and heterozygote TK deficient mice (TK(-/-), TK(+/-)) and wild type littermates (TK(+/+)) were subjected to cardiac ischemia-reperfusion with and without CsA postconditioning. CsA reduced infarct size in TK(+/+) mice but had no effect in TK(+/-) and TK(-/-) mice. Cardiac mitochondria isolated from TK(-/-) mice had indistinguishable basal oxidative phosphorylation and calcium retention capacity compared to TK(+/+) mice but were resistant to CsA inhibition of mPTP opening. TK activity was documented in mouse heart and rat cardiomyoblasts mitochondria. By proximity ligation assay TK was found in close proximity to the mitochondrial membrane proteins VDAC and Tom22, and CypD. Thus, partial or total deficiency in TK induces resistance to the infarct size reducing effect of CsA in cardiac ischemia in mice, suggesting that TK level is a critical factor for cardioprotection by CsA. TK is required for the mitochondrial action of CsA and may interact with CypD. Genetic variability in TK activity has been documented in man and may influence the cardioprotective effect of CsA.
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Affiliation(s)
- G Youcef
- Inserm UMR 1138, Centre de Recherche des Cordeliers, Paris, France; Université Paris Descartes, Paris, France; Université Pierre et Marie Curie, Paris, France; Université de Lorraine, Nancy, France
| | - E Belaidi
- Inserm U 1060-CarMeN & Service d'Explorations Fonctionnelles Cardiovasculaires, Hospices Civils de Lyon, Université Claude Bernard Lyon 1, Lyon, France
| | - L Waeckel
- Inserm UMR 1138, Centre de Recherche des Cordeliers, Paris, France; Université Paris Descartes, Paris, France; Université Pierre et Marie Curie, Paris, France
| | - L Fazal
- Inserm UMR 1138, Centre de Recherche des Cordeliers, Paris, France; Université Paris Descartes, Paris, France; Université Pierre et Marie Curie, Paris, France
| | - M Clemessy
- Inserm UMR 1138, Centre de Recherche des Cordeliers, Paris, France; Université Paris Descartes, Paris, France; Université Pierre et Marie Curie, Paris, France
| | - M P Vincent
- Inserm UMR 1138, Centre de Recherche des Cordeliers, Paris, France; Université Paris Descartes, Paris, France; Université Pierre et Marie Curie, Paris, France
| | - G Zadigue
- Inserm UMR 1138, Centre de Recherche des Cordeliers, Paris, France; Université Paris Descartes, Paris, France; Université Pierre et Marie Curie, Paris, France
| | - C Richer
- Inserm UMR 1138, Centre de Recherche des Cordeliers, Paris, France; Université Paris Descartes, Paris, France; Université Pierre et Marie Curie, Paris, France
| | - F Alhenc-Gelas
- Inserm UMR 1138, Centre de Recherche des Cordeliers, Paris, France; Université Paris Descartes, Paris, France; Université Pierre et Marie Curie, Paris, France
| | - M Ovize
- Inserm U 1060-CarMeN & Service d'Explorations Fonctionnelles Cardiovasculaires, Hospices Civils de Lyon, Université Claude Bernard Lyon 1, Lyon, France
| | - A Pizard
- Inserm UMR 1138, Centre de Recherche des Cordeliers, Paris, France; Université Paris Descartes, Paris, France; Université Pierre et Marie Curie, Paris, France; Université de Lorraine, Nancy, France; Inserm UMRS 1116, faculté de médecine de Nancy-Brabois, Vandoeuvre-lès-Nancy, France; Inserm CIC-1433, Institut du Cœur et des Vaisseaux Louis Mathieu, Vandoeuvre-lès-Nancy, France; CHRU Nancy Brabois, Vandoeuvre-lès-Nancy, France.
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Paillard M, Tubbs E, Thiebaut PA, Gomez L, Fauconnier J, Da Silva CC, Teixeira G, Mewton N, Belaidi E, Durand A, Abrial M, Lacampagne A, Rieusset J, Ovize M. Depressing mitochondria-reticulum interactions protects cardiomyocytes from lethal hypoxia-reoxygenation injury. Circulation 2013; 128:1555-65. [PMID: 23983249 DOI: 10.1161/circulationaha.113.001225] [Citation(s) in RCA: 194] [Impact Index Per Article: 17.6] [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] [Indexed: 11/16/2022]
Abstract
BACKGROUND Under physiological conditions, Ca(2+) transfer from the endoplasmic reticulum (ER) to mitochondria might occur at least in part at contact points between the 2 organelles and involves the VDAC1/Grp75/IP3R1 complex. Accumulation of Ca(2+) into the mitochondrial matrix may activate the mitochondrial chaperone cyclophilin D (CypD) and trigger permeability transition pore opening, whose role in ischemia/reperfusion injury is well recognized. We questioned here whether the transfer of Ca(2+) from ER to mitochondria might play a role in cardiomyocyte death after hypoxia-reoxygenation. METHODS AND RESULTS We report that CypD interacts with the VDAC1/Grp75/IP3R1 complex in cardiomyocytes. Genetic or pharmacological inhibition of CypD in both H9c2 cardiomyoblasts and adult cardiomyocytes decreased the Ca(2+) transfer from ER to mitochondria through IP3R under normoxic conditions. During hypoxia-reoxygenation, the interaction between CypD and the IP3R1 Ca(2+) channeling complex increased concomitantly with mitochondrial Ca(2+) content. Inhibition of either CypD, IP3R1, or Grp75 decreased protein interaction within the complex, attenuated mitochondrial Ca(2+) overload, and protected cells from hypoxia-reoxygenation. Genetic or pharmacological inhibition of CypD provided a similar effect in adult mice cardiomyocytes. Disruption of ER-mitochondria interaction via the downregulation of Mfn2 similarly reduced the interaction between CypD and the IP3R1 complex and protected against hypoxia-reoxygenation injury. CONCLUSIONS Our data (1) point to a new role of CypD at the ER-mitochondria interface and (2) suggest that decreasing ER-mitochondria interaction at reperfusion can protect cardiomyocytes against lethal reperfusion injury through the reduction of mitochondrial Ca(2+) overload via the CypD/VDAC1/Grp75/IP3R1 complex.
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MESH Headings
- Animals
- Calcium Signaling/physiology
- Cell Hypoxia/physiology
- Cell Line
- Cells, Cultured/metabolism
- Peptidyl-Prolyl Isomerase F
- Cyclophilins/deficiency
- Cyclophilins/genetics
- Cyclophilins/physiology
- Endoplasmic Reticulum/physiology
- HSP70 Heat-Shock Proteins/physiology
- In Vitro Techniques
- Inositol 1,4,5-Trisphosphate Receptors/physiology
- Intracellular Membranes/physiology
- Male
- Membrane Proteins/physiology
- Mice
- Mice, Inbred C57BL
- Mice, Knockout
- Mitochondria, Heart/physiology
- Multiprotein Complexes
- Myocardial Reperfusion Injury/prevention & control
- Myocytes, Cardiac/drug effects
- Myocytes, Cardiac/metabolism
- Myocytes, Cardiac/pathology
- Myocytes, Cardiac/ultrastructure
- Oxygen/toxicity
- Patch-Clamp Techniques
- Random Allocation
- Rats
- Voltage-Dependent Anion Channel 1/physiology
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Affiliation(s)
- Melanie Paillard
- From INSERM UMR-1060, Laboratoire CarMeN, Université Lyon 1, Faculté de médecine Rockefeller et Charles Merieux Lyon-Sud, Lyon (M.P., E.T., P.T., L.G., C.C. Da S., G.T., N.M., E.B., A.D., M.A., J.R., M.O.); INSERM UMR-1046, Université Montpellier 1, Université Montpellier 2, CHU de Montpellier, Montpellier (J.F., A.L.); and Hospices Civils de Lyon, Hôpital Louis Pradel, Service d'Explorations Fonctionnelles Cardiovasculaires and CIC de Lyon, Lyon (N.M., M.O.), France
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Belaidi E, Decorps J, Augeul L, Durand A, Ovize M. Endoplasmic reticulum stress contributes to heart protection induced by cyclophilin D inhibition. Basic Res Cardiol 2013; 108:363. [PMID: 23744057 DOI: 10.1007/s00395-013-0363-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2013] [Revised: 04/30/2013] [Accepted: 05/21/2013] [Indexed: 01/08/2023]
Abstract
Preventing cyclophilin D (cypD) translocation to the inner mitochondrial membrane can limit lethal reperfusion injury through the inhibition of the opening of the mitochondrial permeability transition pore. Inhibition or loss of function of cypD may also result into an endoplasmic reticulum (ER) stress that has been shown to alter cell survival. We therefore questioned whether ER stress might play a role in the protection induced by CypD deficiency or inhibition. CypD-KO and NIM811 (a CypD inhibitor)-treated mice were subjected to a prolonged ischemia-reperfusion (I/R). Area at risk and infarct size was measured using blue dye and triphenyltetrazolium chloride staining. ER stress markers were measured in the hearts during the reperfusion phase. As expected, cypD-KO mice exhibited a decreased infarct size when compared to wild-type mice (8 ± 1 vs. 20 ± 4% of left ventricular weight; p < 0.01). CypD-deficient mice displayed an increased expression of ER stress proteins such as eukaryotic initiation factor 2α (eIF2α) or glucose regulated protein 78 (Grp78 or Bip). The ER stress inhibitor TUDCA prevented the infarct size reduction afforded by the loss of cypD function (mean infarct size averaged 21 ± 4% of LV weight, p < 0.01 vs. cypD-KO). Similar results were obtained when NIM811, an analog of cyclosporine A, was used to pharmacologically (instead of genetically) inhibit cypD function. This study suggests that the ER stress induced by the inhibition of cypD function plays a key role in protecting the heart against lethal ischemia-reperfusion injury.
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Affiliation(s)
- Elise Belaidi
- CarMeN Laboratory, INSERM UMR-1060, Cardioprotection Team, Faculté de Médecine, Univ Lyon-1, 8 Avenue Rockefeller, 69373, Lyon Cedex 08, France.
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Pottecher J, Guillot M, Belaidi E, Charles AL, Lejay A, Gharib A, Diemunsch P, Geny B. Cyclosporine A normalizes mitochondrial coupling, reactive oxygen species production, and inflammation and partially restores skeletal muscle maximal oxidative capacity in experimental aortic cross-clamping. J Vasc Surg 2013; 57:1100-1108.e2. [PMID: 23332985 DOI: 10.1016/j.jvs.2012.09.020] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2012] [Revised: 09/07/2012] [Accepted: 09/15/2012] [Indexed: 01/23/2023]
Abstract
OBJECTIVE By binding to cyclophilin D, cyclosporine A (CsA) inhibits mitochondrial permeability transition pore (mPTP) opening and prevents mitochondrial dysfunction and ultimately cell death after ischemia-reperfusion (IR) injury in cardiac muscle. This study tested whether CsA would decrease skeletal muscle oxidative stress and mitochondrial dysfunctions after aortic cross-clamping related IR. METHODS Forty-five Wistar rats were investigated. The sham group (n = 8) had aortic exposure but no ischemia, the IR group (n = 10) had aortic cross-clamping for 3 hours followed by 2 hours of reperfusion, and the IR+CsA group (n = 9) had two intraperitoneal injections of 10 mg of CsA at 90 and 150 minutes of ischemia before reperfusion. Mitochondrial coupling (acceptor control ratio) and mitochondrial respiratory chain complexes' activities were measured. Reactive oxygen species (ROS) production, cyclophilin D expression, and muscle inflammation were determined using dihydroethidium staining, Western blot, and immunohistochemistry, respectively. An additional 18 sham rats were investigated to determine CsA blood levels and the effects of CsA on mitochondrial respiration and calcium retention capacity, a marker of mPTP opening, both in myocardium and gastrocnemius with and without CsA. RESULTS Compared with sham, IR decreased mitochondrial coupling (1.38 ± 0.06 vs 1.98 ± 0.20; P = .0092), increased ROS production (3992 ± 706 arbitrary units [AU] vs 1812 ± 322 AU; P = .033), was associated with macrophage infiltration, and decreased maximal oxidative capacity (V(max): 4.08 ± 0.38 μmol O(2)/min/g vs 5.98 ± 0.56 μmol O(2)/min/g; P = .015). Despite IR, CsA treatment totally restored mitochondrial coupling (1.93 ± 0.12; P = .023 vs IR), normalized ROS (1569 ± 348 AU; P = .0098 vs IR), and decreased inflammation. The V(max) was slightly enhanced (5.02 ± 0.39 μmol O(2)/min/g; P = .33 vs IR; P = .35 vs sham). Compared with myocardium, gastrocnemius muscle was characterized by a decreased cyclophilin D content (-50%) associated with an earlier opening of mPTP (calcium retention capacity increased from 10.85 ± 1.35 μM/mg dry weight [DW] to 12.11 ± 2.77 μM/mg DW; P = .65; and from 11.07 ± 1.67 to 37.65 ± 11.41 μM/mg DW; P = .0098 in gastrocnemius and heart, respectively). CONCLUSIONS Cyclosporine A normalized ROS production, decreased inflammation, and restored mitochondrial coupling during aortic cross-clamping. Incomplete Vmax protection might be due to low cyclophilin D expression in gastrocnemius, preventing CsA from blocking mPTP opening.
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MESH Headings
- Animals
- Aorta/physiopathology
- Aorta/surgery
- Blotting, Western
- Calcium/metabolism
- Constriction
- Peptidyl-Prolyl Isomerase F
- Cyclophilins/metabolism
- Cyclosporine/administration & dosage
- Cyclosporine/blood
- Cyclosporine/pharmacology
- Disease Models, Animal
- Electron Transport Chain Complex Proteins/metabolism
- Energy Metabolism/drug effects
- Immunohistochemistry
- Inflammation/metabolism
- Inflammation/physiopathology
- Inflammation/prevention & control
- Injections, Intraperitoneal
- Macrophages/drug effects
- Macrophages/metabolism
- Male
- Mitochondria, Heart/drug effects
- Mitochondria, Heart/metabolism
- Mitochondria, Muscle/drug effects
- Mitochondria, Muscle/metabolism
- Mitochondrial Membrane Transport Proteins/antagonists & inhibitors
- Mitochondrial Membrane Transport Proteins/metabolism
- Mitochondrial Permeability Transition Pore
- Muscle, Skeletal/blood supply
- Muscle, Skeletal/drug effects
- Muscle, Skeletal/metabolism
- Oxidative Stress/drug effects
- Rats
- Rats, Wistar
- Reactive Oxygen Species/metabolism
- Reperfusion Injury/metabolism
- Reperfusion Injury/physiopathology
- Reperfusion Injury/prevention & control
- Time Factors
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Affiliation(s)
- Julien Pottecher
- Pôle Anesthésie Réanimation Chirurgicale, SAMU, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
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Fouillet A, Levet C, Virgone A, Robin M, Dourlen P, Rieusset J, Belaidi E, Ovize M, Touret M, Nataf S, Mollereau B. ER stress inhibits neuronal death by promoting autophagy. Autophagy 2012; 8:915-26. [PMID: 22660271 DOI: 10.4161/auto.19716] [Citation(s) in RCA: 179] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Endoplasmic reticulum (ER) stress has been implicated in neurodegenerative diseases but its relationship and role in disease progression remain unclear. Using genetic and pharmacological approaches, we showed that mild ER stress ("preconditioning") is neuroprotective in Drosophila and mouse models of Parkinson disease. In addition, we found that the combination of mild ER stress and apoptotic signals triggers an autophagic response both in vivo and in vitro. We showed that when autophagy is impaired, ER-mediated protection is lost. We further demonstrated that autophagy inhibits caspase activation and apoptosis. Based on our findings, we conclude that autophagy is required for the neuroprotection mediated by mild ER stress, and therefore ER preconditioning has potential therapeutic value for the treatment of neurodegenerative diseases.
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Affiliation(s)
- Antoine Fouillet
- Ecole Normale Supérieure de Lyon, Laboratoire de Biologie Moléculaire de la Cellule, Lyon, France
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Belaidi E, Beguin PC, Levy P, Ribuot C, Godin-Ribuot D. Delayed myocardial preconditioning induced by cobalt chloride in the rat: HIF-1α and iNOS involvement. Fundam Clin Pharmacol 2011; 26:454-62. [DOI: 10.1111/j.1472-8206.2011.00940.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Belaidi E, Godin-Ribuot D. [The endothelin system: its involvement in the cardiovascular system]. Rev Med Interne 2010; 31:792-4. [PMID: 20570418 DOI: 10.1016/j.revmed.2009.11.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2009] [Revised: 10/07/2009] [Accepted: 11/28/2009] [Indexed: 11/25/2022]
Abstract
The endothelin (ET)-system is composed of three endothelins, two receptors and two enzymes. The study of this system presents a great interest to understand the cardiovascular physiopathology. The ET-system is involved in cardiac organogenesis, angiogenesis and vascular tone homeostasis. Its role in arterial pulmonary hypertension, arterial hypertension and atherosclerosis has been shown. The numerous ET-system's targets suggest that it could be involved in pathologies which bring together various cardiovascular disorders such as the obstructive sleep apnoea syndrome. Thus, the ET-system generates today a lively interest for experimental and clinical trials.
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Affiliation(s)
- E Belaidi
- Laboratoire HP2, hypoxie et physiopathologies cardiovasculaires et respiratoires, EA-3745, Inserm ERI0017, France.
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Belaidi E, Joyeux-Faure M, Ribuot C, Launois SH, Levy P, Godin-Ribuot D. Major Role for Hypoxia Inducible Factor-1 and the Endothelin System in Promoting Myocardial Infarction and Hypertension in an Animal Model of Obstructive Sleep Apnea. J Am Coll Cardiol 2009; 53:1309-17. [DOI: 10.1016/j.jacc.2008.12.050] [Citation(s) in RCA: 125] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2008] [Revised: 12/12/2008] [Accepted: 12/15/2008] [Indexed: 11/25/2022]
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Belaidi E, Beguin PC, Levy P, Ribuot C, Godin-Ribuot D. Prevention of HIF-1 activation and iNOS gene targeting by low-dose cadmium results in loss of myocardial hypoxic preconditioning in the rat. Am J Physiol Heart Circ Physiol 2007; 294:H901-8. [PMID: 18083903 DOI: 10.1152/ajpheart.00715.2007] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
This study aimed to underline the interaction between hypoxia-inducible factor-1 (HIF-1) and the inducible nitric oxide synthase (iNOS) gene in vivo and their contribution to the delayed myocardial preconditioning induced by acute intermittent hypoxia (IH) in the rat using chromatin immunoprecipitation and pharmacological inhibition by low-dose cadmium. Langendorff-perfused hearts of Wistar rats exposed to normoxia or IH 24 h earlier were submitted to global ischemia and reperfusion. Effects of iNOS inhibition by aminoguanidine (100 microM) before ischemia or of low-dose injection of cadmium chloride (1 mg/kg) before normoxia or IH were tested. Myocardial HIF-1 and iNOS quantification and in vivo chromatin immunoprecipitation of HIF-1 bound to the iNOS gene promoter were performed. IH-induced delayed cardioprotection resulted in an improvement in coronary flow and functional recovery at reperfusion and a decrease in infarct size. Myocardial HIF-1 activity was increased with resulting targeting of the iNOS gene. Aminoguanidine abolished the cardioprotective effects of IH. Cadmium chloride treatment before IH prevented myocardial HIF-1 activation (72.3 +/- 4.0 vs. 42.1 +/- 9.7 arbitrary units after cadmium chloride; P < 0.05), targeting of the iNOS gene, iNOS expression, and preconditioning (infarct size: 15.9 +/- 5.6 vs. 30.1 +/- 5.4% after cadmium chloride; P < 0.05). This study is the first to demonstrate the interaction of HIF-1 with the myocardial iNOS gene in situ after hypoxic preconditioning. Prevention of HIF-1 activation and iNOS gene targeting by a single low dose of cadmium abolished the delayed cardioprotective effects, bringing insight into the cardiovascular consequences of cadmium exposure.
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Affiliation(s)
- Elise Belaidi
- Laboratoire HP2, Hypoxie et Physiopathologies Cardiovasculaire et Respiratoire, Institut National de la Santé et de la Recherche Médicale ERI17, Grenoble, France
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Béguin PC, Belaidi E, Godin-Ribuot D, Lévy P, Ribuot C. Intermittent hypoxia-induced delayed cardioprotection is mediated by PKC and triggered by p38 MAP kinase and Erk1/2. J Mol Cell Cardiol 2006; 42:343-51. [PMID: 17188294 DOI: 10.1016/j.yjmcc.2006.11.008] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2006] [Revised: 10/24/2006] [Accepted: 11/14/2006] [Indexed: 11/27/2022]
Abstract
We previously reported that acute intermittent hypoxia (IH) confers delayed cardioprotection against a prolonged ischemic insult in the rat, via the involvement of nitric oxide synthase and K(ATP) channels. In the present study, we investigated the role of protein kinase C (PKC), phosphatidylinositol-3-kinase (PI3K), stress activated p38 MAP kinase (MAPK) and extracellular signal-regulated kinase (ERK1/2) using selective inhibitors of these pathways. Adult male rats were exposed to 1-min cycles of IH (10% O(2), 40 s)/normoxia (21% O(2), 20 s) during 4 h or to normoxic cycles. 24 h later, isolated hearts were perfused in Langendorff mode and subjected to a 30-min global ischemia followed by 120 min of reperfusion. Compared to normoxic conditions, IH significantly reduced infarct size (22.2+/-2.4% vs. 33.8+/-2.6%, p<0.05), improved coronary flow and decreased the contracture at reperfusion. When administered before sustained ischemia, chelerythrine (a PKC inhibitor) abolished both the IH-induced reduction in infarct size (36.1+/-4.9%) and improvement in hemodynamic parameters. In contrast, chelerythrine administration 10 min before IH, did not modify the delayed cardioprotective response. Similarly, wortmannin (a PI3K inhibitor) administration 10 min before IH was unable to block the cardioprotective effects. However, administration of SB203580 (a p38 MAPK inhibitor) and PD98059 (an Erk1/2 inhibitor), 30 min before IH abolished its delayed infarct-sparing effect (32.2+/-3.4% and 33.9+/-2.9%, respectively). In addition, 24 h after IH, a significant increase in p38 MAPK and Erk1/2 phosphorylation was observed by Western blot. These results suggest that the delayed preconditioning induced by intermittent hypoxia does not involve the PI3K signalling pathway and that is mediated by PKC and triggered by p38 MAPK and Erk1/2.
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Affiliation(s)
- Pauline C Béguin
- Laboratoire HP2, Hypoxie Physiopathologies Respiratoire et Cardiovasculaire, EA3745, INSERM ERI 0017, Institut Jean Roget, BP 170 38042 Grenoble Cedex 9, France
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