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Puig N, Rives J, Gil-Millan P, Miñambres I, Ginel A, Tauron M, Bonaterra-Pastra A, Hernández-Guillamon M, Pérez A, Sánchez-Quesada JL, Benitez S. Apolipoprotein J protects cardiomyocytes from lipid-mediated inflammation and cytotoxicity induced by the epicardial adipose tissue of diabetic patients. Biomed Pharmacother 2024; 175:116779. [PMID: 38776681 DOI: 10.1016/j.biopha.2024.116779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 05/09/2024] [Accepted: 05/17/2024] [Indexed: 05/25/2024] Open
Abstract
Diabetic patients present increased volume and functional alterations in epicardial adipose tissue (EAT). We aimed to analyze EAT from type 2 diabetic patients and the inflammatory and cytotoxic effects induced on cardiomyocytes. Furthermore, we analyzed the cardioprotective role of apolipoprotein J (apoJ). EAT explants were obtained from nondiabetic patients (ND), diabetic patients without coronary disease (DM), and DM patients with coronary disease (DM-C) after heart surgery. Morphological characteristics and gene expression were evaluated. Explants were cultured for 24 h and the content of nonesterified fatty acids (NEFA) and sphingolipid species in secretomes was evaluated by lipidomic analysis. Afterwards, secretomes were added to AC16 human cardiomyocytes for 24 h in the presence or absence of cardioprotective molecules (apoJ and HDL). Cytokine release and apoptosis/necrosis were assessed by ELISA and flow cytometry. The EAT from the diabetic samples showed altered expression of genes related to lipid accumulation, insulin resistance, and inflammation. The secretomes from the DM samples presented an increased ratio of pro/antiatherogenic ceramide (Cer) species, while those from DM-C contained the highest concentration of saturated NEFA. DM and DM-C secretomes promoted inflammation and cytotoxicity on AC16 cardiomyocytes. Exogenous Cer16:0, Cer24:1, and palmitic acid reproduced deleterious effects in AC16 cells. These effects were attenuated by exogenous apoJ. Diabetic secretomes promoted inflammation and cytotoxicity in cardiomyocytes. This effect was exacerbated in the secretomes of the DM-C samples. The increased content of specific NEFA and ceramide species seems to play a key role in inducing such deleterious effects, which are attenuated by apoJ.
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Affiliation(s)
- Núria Puig
- Cardiovascular Biochemistry, Institut de Recerca Sant Pau (IR-Sant Pau), Barcelona, Spain; Department of Biochemistry and Molecular Biology, Faculty of Medicine, Universitat Autònoma de Barcelona, Barcelona 08193, Spain
| | - José Rives
- Cardiovascular Biochemistry, Institut de Recerca Sant Pau (IR-Sant Pau), Barcelona, Spain; Department of Biochemistry and Molecular Biology, Faculty of Medicine, Universitat Autònoma de Barcelona, Barcelona 08193, Spain
| | - Pedro Gil-Millan
- Endocrinology Department, Hospital de la Santa Creu i Sant Pau, and IR-Sant Pau, Barcelona, Spain
| | - Inka Miñambres
- Endocrinology Department, Hospital de la Santa Creu i Sant Pau, and IR-Sant Pau, Barcelona, Spain
| | - Antonino Ginel
- Cardiology Department, Hospital de la Santa Creu i Sant Pau, and IR-Sant Pau, Barcelona, Spain
| | - Manel Tauron
- Cardiology Department, Hospital de la Santa Creu i Sant Pau, and IR-Sant Pau, Barcelona, Spain
| | - Anna Bonaterra-Pastra
- Neurovascular Research Laboratory, Vall d'Hebron Research Institute, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Mar Hernández-Guillamon
- Neurovascular Research Laboratory, Vall d'Hebron Research Institute, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Antonio Pérez
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, Universitat Autònoma de Barcelona, Barcelona 08193, Spain; CIBER of Diabetes and Metabolic Diseases (CIBERDEM), Madrid, Spain
| | - José Luís Sánchez-Quesada
- Cardiovascular Biochemistry, Institut de Recerca Sant Pau (IR-Sant Pau), Barcelona, Spain; CIBER of Diabetes and Metabolic Diseases (CIBERDEM), Madrid, Spain.
| | - Sonia Benitez
- Cardiovascular Biochemistry, Institut de Recerca Sant Pau (IR-Sant Pau), Barcelona, Spain; CIBER of Diabetes and Metabolic Diseases (CIBERDEM), Madrid, Spain.
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Zeng Y, Li Y, Jiang W, Hou N. Molecular mechanisms of metabolic dysregulation in diabetic cardiomyopathy. Front Cardiovasc Med 2024; 11:1375400. [PMID: 38596692 PMCID: PMC11003275 DOI: 10.3389/fcvm.2024.1375400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Accepted: 03/08/2024] [Indexed: 04/11/2024] Open
Abstract
Diabetic cardiomyopathy (DCM), one of the most serious complications of diabetes mellitus, has become recognized as a cardiometabolic disease. In normoxic conditions, the majority of the ATP production (>95%) required for heart beating comes from mitochondrial oxidative phosphorylation of fatty acids (FAs) and glucose, with the remaining portion coming from a variety of sources, including fructose, lactate, ketone bodies (KB) and branched chain amino acids (BCAA). Increased FA intake and decreased utilization of glucose and lactic acid were observed in the diabetic hearts of animal models and diabetic patients. Moreover, the polyol pathway is activated, and fructose metabolism is enhanced. The use of ketones as energy sources in human diabetic hearts also increases significantly. Furthermore, elevated BCAA levels and impaired BCAA metabolism were observed in the hearts of diabetic mice and patients. The shift in energy substrate preference in diabetic hearts results in increased oxygen consumption and impaired oxidative phosphorylation, leading to diabetic cardiomyopathy. However, the precise mechanisms by which impaired myocardial metabolic alterations result in diabetes mellitus cardiac disease are not fully understood. Therefore, this review focuses on the molecular mechanisms involved in alterations of myocardial energy metabolism. It not only adds more molecular targets for the diagnosis and treatment, but also provides an experimental foundation for screening novel therapeutic agents for diabetic cardiomyopathy.
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Affiliation(s)
- Yue Zeng
- Key Laboratory of Molecular Target & Clinical Pharmacology, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
- Department of Pharmacy, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan, China
| | - Yilang Li
- Key Laboratory of Molecular Target & Clinical Pharmacology, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
- Department of Pharmacy, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan, China
| | - Wenyue Jiang
- Department of Pharmacy, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan, China
| | - Ning Hou
- Key Laboratory of Molecular Target & Clinical Pharmacology, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
- Department of Pharmacy, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan, China
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Chattergoon N, Louey S, Jonker SS, Thornburg KL. Thyroid hormone increases fatty acid use in fetal ovine cardiac myocytes. Physiol Rep 2023; 11:e15865. [PMID: 38010207 PMCID: PMC10680578 DOI: 10.14814/phy2.15865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 10/24/2023] [Accepted: 10/24/2023] [Indexed: 11/29/2023] Open
Abstract
Cardiac metabolic substrate preference shifts at parturition from carbohydrates to fatty acids. We hypothesized that thyroid hormone (T3 ) and palmitic acid (PA) stimulate fetal cardiomyocyte oxidative metabolism capacity. T3 was infused into fetal sheep to a target of 1.5 nM. Dispersed cardiomyocytes were assessed for lipid uptake and droplet formation with BODIPY-labeled fatty acids. Myocardial expression levels were assessed PCR. Cardiomyocytes from naïve fetuses were exposed to T3 and PA, and oxygen consumption was measured with the Seahorse Bioanalyzer. Cardiomyocytes (130-day gestational age) exposed to elevated T3 in utero accumulated 42% more long-chain fatty acid droplets than did cells from vehicle-infused fetuses. In utero T3 increased myocardial mRNA levels of CD36, CPT1A, CPT1B, LCAD, VLCAD, HADH, IDH, PDK4, and caspase 9. In vitro exposure to T3 increased maximal oxygen consumption rate in cultured cardiomyocytes in the absence of fatty acids, and when PA was provided as an acute (30 min) supply of cellular energy. Longer-term exposure (24 and 48 h) to PA abrogated increased oxygen consumption rates stimulated by elevated levels of T3 in cultured cardiomyocytes. T3 contributes to metabolic maturation of fetal cardiomyocytes. Prolonged exposure of fetal cardiomyocytes to PA, however, may impair oxidative capacity.
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Affiliation(s)
- Natasha Chattergoon
- Center for Developmental Health, Knight Cardiovascular InstituteOregon Health & Science UniversityPortlandOregonUSA
| | - Samantha Louey
- Center for Developmental Health, Knight Cardiovascular InstituteOregon Health & Science UniversityPortlandOregonUSA
| | - Sonnet S. Jonker
- Center for Developmental Health, Knight Cardiovascular InstituteOregon Health & Science UniversityPortlandOregonUSA
| | - Kent L. Thornburg
- Center for Developmental Health, Knight Cardiovascular InstituteOregon Health & Science UniversityPortlandOregonUSA
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Bian J, Ding Y, Wang S, Jiang Y, Wang M, Wei K, Si L, Zhao X, Shao Y. Celastrol confers ferroptosis resistance via AKT/GSK3β signaling in high-fat diet-induced cardiac injury. Free Radic Biol Med 2023; 200:36-46. [PMID: 36906189 DOI: 10.1016/j.freeradbiomed.2023.03.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 02/28/2023] [Accepted: 03/06/2023] [Indexed: 03/11/2023]
Abstract
Obesity-induced cardiac dysfunction is a severe global disease associated with high dietary fat intake, and its pathogenesis includes inflammation, oxidative stress, and ferroptosis. Celastrol (Cel) is a bioactive compound isolated from the herb Tripterygium wilfordii, which has a protective influence on cardiovascular diseases. In this study, the role of Cel in obesity-induced ferroptosis and cardiac injury was investigated. We found that Cel alleviated ferroptosis induced by Palmitic acid (PA), exhibiting a decrease in the LDH, CK-MB, Ptgs2, and Lipid Peroxidation levels. After cardiomyocytes were treated with additional LY294002 and LiCl, Cel exerted its protective effect through increased AKT/GSK3β phosphorylation and decreased level of lipid peroxidation and Mitochondrial ROS. The systolic left ventricle (LV) dysfunction of obese mice was alleviated via ferroptosis inhibition by elevated p-GSK3β and decreased Mitochondrial ROS under Cel treatment. Moreover, mitochondrial anomalies included swelling and distortion in the myocardium which was relieved with Cel. In conclusion, our results demonstrate that ferroptosis resistance with Cel under HFD conditions targets AKT/GSK3β signaling, which provides novel therapeutic strategies in obesity-induced cardiac injury.
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Affiliation(s)
- Jinhui Bian
- Department of Cardiovascular Surgery, The First Affiliated Hospital with Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Yi Ding
- Department of Cardiovascular Surgery, The First Affiliated Hospital with Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Song Wang
- Department of Cardiovascular Surgery, The First Affiliated Hospital with Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Yefan Jiang
- Department of Cardiovascular Surgery, The First Affiliated Hospital with Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Mingyan Wang
- Department of Pediatrics, The Affiliated Hospital of Jiangsu University, Zhenjiang, 212001, China
| | - Ke Wei
- Department of Thoracic Surgery, The First Affiliated Hospital with Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Linjie Si
- Department of Cardiovascular Surgery, The First Affiliated Hospital with Nanjing Medical University, Nanjing, 210029, Jiangsu, China.
| | - Xin Zhao
- Department of Health Management Center, The First Affiliated Hospital with Nanjing Medical University, Nanjing, 210029, Jiangsu, China.
| | - Yongfeng Shao
- Department of Cardiovascular Surgery, The First Affiliated Hospital with Nanjing Medical University, Nanjing, 210029, Jiangsu, China.
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Macvanin MT, Gluvic Z, Radovanovic J, Essack M, Gao X, Isenovic ER. Diabetic cardiomyopathy: The role of microRNAs and long non-coding RNAs. Front Endocrinol (Lausanne) 2023; 14:1124613. [PMID: 36950696 PMCID: PMC10025540 DOI: 10.3389/fendo.2023.1124613] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 02/16/2023] [Indexed: 03/08/2023] Open
Abstract
Diabetes mellitus (DM) is on the rise, necessitating the development of novel therapeutic and preventive strategies to mitigate the disease's debilitating effects. Diabetic cardiomyopathy (DCMP) is among the leading causes of morbidity and mortality in diabetic patients globally. DCMP manifests as cardiomyocyte hypertrophy, apoptosis, and myocardial interstitial fibrosis before progressing to heart failure. Evidence suggests that non-coding RNAs, such as long non-coding RNAs (lncRNAs) and microRNAs (miRNAs), regulate diabetic cardiomyopathy-related processes such as insulin resistance, cardiomyocyte apoptosis and inflammation, emphasizing their heart-protective effects. This paper reviewed the literature data from animal and human studies on the non-trivial roles of miRNAs and lncRNAs in the context of DCMP in diabetes and demonstrated their future potential in DCMP treatment in diabetic patients.
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Affiliation(s)
- Mirjana T. Macvanin
- Department of Radiobiology and Molecular Genetics, VINČA Institute of Nuclear Sciences - National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
- *Correspondence: Mirjana T. Macvanin,
| | - Zoran Gluvic
- University Clinical-Hospital Centre Zemun-Belgrade, Clinic of Internal Medicine, Department of Endocrinology and Diabetes, School of Medicine, University of Belgrade, Belgrade, Serbia
| | - Jelena Radovanovic
- Department of Radiobiology and Molecular Genetics, VINČA Institute of Nuclear Sciences - National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Magbubah Essack
- King Abdullah University of Science and Technology (KAUST), Computer, Electrical, and Mathematical Sciences and Engineering (CEMSE) Division, Computational Bioscience Research Center (CBRC), Thuwal, Saudi Arabia
| | - Xin Gao
- King Abdullah University of Science and Technology (KAUST), Computer, Electrical, and Mathematical Sciences and Engineering (CEMSE) Division, Computational Bioscience Research Center (CBRC), Thuwal, Saudi Arabia
| | - Esma R. Isenovic
- Department of Radiobiology and Molecular Genetics, VINČA Institute of Nuclear Sciences - National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
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Byrne NJ, Rajasekaran NS, Abel ED, Bugger H. Therapeutic potential of targeting oxidative stress in diabetic cardiomyopathy. Free Radic Biol Med 2021; 169:317-342. [PMID: 33910093 PMCID: PMC8285002 DOI: 10.1016/j.freeradbiomed.2021.03.046] [Citation(s) in RCA: 65] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 02/24/2021] [Accepted: 03/25/2021] [Indexed: 02/07/2023]
Abstract
Even in the absence of coronary artery disease and hypertension, diabetes mellitus (DM) may increase the risk for heart failure development. This risk evolves from functional and structural alterations induced by diabetes in the heart, a cardiac entity termed diabetic cardiomyopathy (DbCM). Oxidative stress, defined as the imbalance of reactive oxygen species (ROS) has been increasingly proposed to contribute to the development of DbCM. There are several sources of ROS production including the mitochondria, NAD(P)H oxidase, xanthine oxidase, and uncoupled nitric oxide synthase. Overproduction of ROS in DbCM is thought to be counterbalanced by elevated antioxidant defense enzymes such as catalase and superoxide dismutase. Excess ROS in the cardiomyocyte results in further ROS production, mitochondrial DNA damage, lipid peroxidation, post-translational modifications of proteins and ultimately cell death and cardiac dysfunction. Furthermore, ROS modulates transcription factors responsible for expression of antioxidant enzymes. Lastly, evidence exists that several pharmacological agents may convey cardiovascular benefit by antioxidant mechanisms. As such, increasing our understanding of the pathways that lead to increased ROS production and impaired antioxidant defense may enable the development of therapeutic strategies against the progression of DbCM. Herein, we review the current knowledge about causes and consequences of ROS in DbCM, as well as the therapeutic potential and strategies of targeting oxidative stress in the diabetic heart.
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Affiliation(s)
- Nikole J Byrne
- Division of Cardiology, Medical University of Graz, Graz, Austria
| | - Namakkal S Rajasekaran
- Cardiac Aging & Redox Signaling Laboratory, Molecular and Cellular Pathology, Department of Pathology, Birmingham, AL, USA; Division of Cardiovascular Medicine, Department of Medicine, University of Utah School of Medicine, Salt Lake City, UT, USA; Center for Free Radical Biology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - E Dale Abel
- Fraternal Order of Eagles Diabetes Research Center, Division of Endocrinology and Metabolism, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, USA
| | - Heiko Bugger
- Division of Cardiology, Medical University of Graz, Graz, Austria.
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Physiological and pharmacological stimulation for in vitro maturation of substrate metabolism in human induced pluripotent stem cell-derived cardiomyocytes. Sci Rep 2021; 11:7802. [PMID: 33833285 PMCID: PMC8032667 DOI: 10.1038/s41598-021-87186-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Accepted: 03/22/2021] [Indexed: 02/01/2023] Open
Abstract
Human induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs) enable human cardiac cells to be studied in vitro, although they use glucose as their primary metabolic substrate and do not recapitulate the properties of adult cardiomyocytes. Here, we have explored the interplay between maturation by stimulation of fatty acid oxidation and by culture in 3D. We have investigated substrate metabolism in hiPSC-CMs grown as a monolayer and in 3D, in porous collagen-derived scaffolds and in engineered heart tissue (EHT), by measuring rates of glycolysis and glucose and fatty acid oxidation (FAO), and changes in gene expression and mitochondrial oxygen consumption. FAO was stimulated by activation of peroxisome proliferator-activated receptor alpha (PPARα), using oleate and the agonist WY-14643, which induced an increase in FAO in monolayer hiPSC-CMs. hiPSC-CMs grown in 3D on collagen-derived scaffolds showed reduced glycolysis and increased FAO compared with monolayer cells. Activation of PPARα further increased FAO in cells on collagen/elastin scaffolds but not collagen or collagen/chondroitin-4-sulphate scaffolds. In EHT, FAO was significantly higher than in monolayer cells or those on static scaffolds and could be further increased by culture with oleate and WY-14643. In conclusion, a more mature metabolic phenotype can be induced by culture in 3D and FAO can be incremented by pharmacological stimulation.
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Lu Y, Yang M, Peng M, Xie L, Shen A, Lin S, Huang B, Chu J, Peng J. Kuanxiong aerosol inhibits apoptosis and attenuates isoproterenol-induced myocardial injury through the mitogen-activated protein kinase pathway. JOURNAL OF ETHNOPHARMACOLOGY 2021; 269:113757. [PMID: 33359915 DOI: 10.1016/j.jep.2020.113757] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 12/02/2020] [Accepted: 12/22/2020] [Indexed: 06/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Kuanxiong aerosol (KXA) is a common clinical drug based on Fangxiang Wentong (FXWT) therapy in the treatment of angina pectoris. However, the pharmacological mechanism of KXA in the prevention and treatment of myocardial injury (MI) is not clear. AIM OF THE STUDY The purpose of this study was to explore the protective effect of KXA on isoproterenol (ISO)-induced MI in rats. MATERIALS AND METHODS The study included male Wistar Kyoto rats (age: 6 weeks). The rats were randomly divided into the following 5 groups (n = 6 per group): control group, ISO group, isosorbide mononitrate (ISMN) group (5 mg/kg), KXA-L group (0.1 mL/kg), and KXA-H group (0.3 mL/kg). The rats in the last three groups were given intragastric administration for 14 days, and rats in control group and ISO group were given the same amount of normal saline daily. ISO (120 mg/kg) was used to induce MI on the 13th and 14th days. We assessed electrocardiograms (ECGs), myocardial specific enzymes, histopathological changes, and apoptosis. RESULTS We found that KXA reduced the increase in the ST-segment amplitude (elevation or depression) and the levels of myocardial marker enzymes induced by ISO in MI rats, improved the pathological changes in myocardial tissue, and reduced cardiomyocyte apoptosis. At the same time, KXA significantly inhibited the up-regulation of caspase-3 and Bax expression and down-regulation of Bcl-2 expression induced by ISO. RNA sequencing showed that 90 up-regulated genes induced by ISO were down-regulated after KXA treatment, whereas 27 down-regulated genes induced by ISO were up-regulated after KXA treatment. In addition, KEGG pathway enrichment analysis showed that the mitogen-activated protein kinase (MAPK) signaling pathway may be an important target of KXA in the treatment of ISO-induced MI in rats. The results of RNA sequencing verified by Western blot analysis showed that KXA significantly inhibited the activation of the ISO-induced MAPK pathway. CONCLUSIONS KXA improves cardiac function in MI rats by inhibiting apoptosis mediated by the MAPK signaling pathway.
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Affiliation(s)
- Yan Lu
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Chen Keji Academic Thought Inheritance Studio, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China
| | - Meiling Yang
- The Third People's Hospital Affiliated to Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China
| | - Meizhong Peng
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Chen Keji Academic Thought Inheritance Studio, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China
| | - Lingling Xie
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Chen Keji Academic Thought Inheritance Studio, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China
| | - Aling Shen
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Chen Keji Academic Thought Inheritance Studio, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China
| | - Shan Lin
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Chen Keji Academic Thought Inheritance Studio, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China
| | - Bin Huang
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Chen Keji Academic Thought Inheritance Studio, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China
| | - Jianfeng Chu
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Chen Keji Academic Thought Inheritance Studio, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China.
| | - Jun Peng
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Chen Keji Academic Thought Inheritance Studio, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China.
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Gutiérrez-Cuevas J, Sandoval-Rodriguez A, Meza-Rios A, Monroy-Ramírez HC, Galicia-Moreno M, García-Bañuelos J, Santos A, Armendariz-Borunda J. Molecular Mechanisms of Obesity-Linked Cardiac Dysfunction: An Up-Date on Current Knowledge. Cells 2021; 10:cells10030629. [PMID: 33809061 PMCID: PMC8000147 DOI: 10.3390/cells10030629] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Revised: 02/26/2021] [Accepted: 03/03/2021] [Indexed: 02/07/2023] Open
Abstract
Obesity is defined as excessive body fat accumulation, and worldwide obesity has nearly tripled since 1975. Excess of free fatty acids (FFAs) and triglycerides in obese individuals promote ectopic lipid accumulation in the liver, skeletal muscle tissue, and heart, among others, inducing insulin resistance, hypertension, metabolic syndrome, type 2 diabetes (T2D), atherosclerosis, and cardiovascular disease (CVD). These diseases are promoted by visceral white adipocyte tissue (WAT) dysfunction through an increase in pro-inflammatory adipokines, oxidative stress, activation of the renin-angiotensin-aldosterone system (RAAS), and adverse changes in the gut microbiome. In the heart, obesity and T2D induce changes in substrate utilization, tissue metabolism, oxidative stress, and inflammation, leading to myocardial fibrosis and ultimately cardiac dysfunction. Peroxisome proliferator-activated receptors (PPARs) are involved in the regulation of carbohydrate and lipid metabolism, also improve insulin sensitivity, triglyceride levels, inflammation, and oxidative stress. The purpose of this review is to provide an update on the molecular mechanisms involved in obesity-linked CVD pathophysiology, considering pro-inflammatory cytokines, adipokines, and hormones, as well as the role of oxidative stress, inflammation, and PPARs. In addition, cell lines and animal models, biomarkers, gut microbiota dysbiosis, epigenetic modifications, and current therapeutic treatments in CVD associated with obesity are outlined in this paper.
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Affiliation(s)
- Jorge Gutiérrez-Cuevas
- Department of Molecular Biology and Genomics, Institute for Molecular Biology in Medicine and Gene Therapy, University of Guadalajara, CUCS, Jalisco 44340, Mexico; (J.G.-C.); (A.S.-R.); (H.C.M.-R.); (M.G.-M.); (J.G.-B.)
| | - Ana Sandoval-Rodriguez
- Department of Molecular Biology and Genomics, Institute for Molecular Biology in Medicine and Gene Therapy, University of Guadalajara, CUCS, Jalisco 44340, Mexico; (J.G.-C.); (A.S.-R.); (H.C.M.-R.); (M.G.-M.); (J.G.-B.)
| | - Alejandra Meza-Rios
- Tecnologico de Monterrey, Campus Guadalajara, Zapopan, School of Medicine and Health Sciences, Jalisco 45201, Mexico; (A.M.-R.); (A.S.)
| | - Hugo Christian Monroy-Ramírez
- Department of Molecular Biology and Genomics, Institute for Molecular Biology in Medicine and Gene Therapy, University of Guadalajara, CUCS, Jalisco 44340, Mexico; (J.G.-C.); (A.S.-R.); (H.C.M.-R.); (M.G.-M.); (J.G.-B.)
| | - Marina Galicia-Moreno
- Department of Molecular Biology and Genomics, Institute for Molecular Biology in Medicine and Gene Therapy, University of Guadalajara, CUCS, Jalisco 44340, Mexico; (J.G.-C.); (A.S.-R.); (H.C.M.-R.); (M.G.-M.); (J.G.-B.)
| | - Jesús García-Bañuelos
- Department of Molecular Biology and Genomics, Institute for Molecular Biology in Medicine and Gene Therapy, University of Guadalajara, CUCS, Jalisco 44340, Mexico; (J.G.-C.); (A.S.-R.); (H.C.M.-R.); (M.G.-M.); (J.G.-B.)
| | - Arturo Santos
- Tecnologico de Monterrey, Campus Guadalajara, Zapopan, School of Medicine and Health Sciences, Jalisco 45201, Mexico; (A.M.-R.); (A.S.)
| | - Juan Armendariz-Borunda
- Department of Molecular Biology and Genomics, Institute for Molecular Biology in Medicine and Gene Therapy, University of Guadalajara, CUCS, Jalisco 44340, Mexico; (J.G.-C.); (A.S.-R.); (H.C.M.-R.); (M.G.-M.); (J.G.-B.)
- Tecnologico de Monterrey, Campus Guadalajara, Zapopan, School of Medicine and Health Sciences, Jalisco 45201, Mexico; (A.M.-R.); (A.S.)
- Correspondence: ; Tel.: +52-333-677-8741
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10
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Yang Z, Chen Y, Yan Z, Xu TT, Wu X, Pi A, Liu Q, Chai H, Li S, Dou X. Inhibition of TLR4/MAPKs Pathway Contributes to the Protection of Salvianolic Acid A Against Lipotoxicity-Induced Myocardial Damage in Cardiomyocytes and Obese Mice. Front Pharmacol 2021; 12:627123. [PMID: 33762947 PMCID: PMC7982403 DOI: 10.3389/fphar.2021.627123] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Accepted: 01/11/2021] [Indexed: 12/16/2022] Open
Abstract
The occurrence of lipotoxicity during obesity-associated cardiomyopathy is detrimental to health. Salvianolic acid A (SAA), a natural polyphenol extract of Salvia miltiorrhiza Bunge (Danshen in China), is known to be cardioprotective. However, its clinical benefits against obesity-associated cardiomyocyte injuries are unclear. This study aimed at evaluating the protective effects of SAA against lipotoxicity-induced myocardial injury and its underlying mechanisms in high fat diet (HFD)-fed mice and in palmitate-treated cardiomyocyte cells (H9c2). Our analysis of aspartate aminotransferase and creatine kinase isoenzyme-MB (CM-KB) levels revealed that SAA significantly reversed HFD-induced myocardium morphological changes and improved myocardial damage. Salvianolic acid A pretreatment ameliorated palmitic acid-induced myocardial cell death and was accompanied by mitochondrial membrane potential and intracellular reactive oxygen species improvement. Analysis of the underlying mechanisms showed that SAA reversed myocardial TLR4 induction in HFD-fed mice and H9c2 cells. Palmitic acid-induced cell death was significantly reversed by CLI-95, a specific TLR4 inhibitor. TLR4 activation by LPS significantly suppressed SAA-mediated lipotoxicity protection. Additionally, SAA inhibited lipotoxicity-mediated expression of TLR4 target genes, including MyD88 and p-JNK/MAPK in HFD-fed mice and H9c2 cells. However, SAA did not exert any effect on palmitic acid-induced SIRT1 suppression and p-AMPK induction. In conclusion, our data shows that SAA protects against lipotoxicity-induced myocardial damage through a TLR4/MAPKs mediated mechanism.
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Affiliation(s)
- Zhen Yang
- College of Basic Medicine and Public Health, Zhejiang Chinese Medical University, Hangzhou, China.,College of Life Science, Zhejiang Chinese Medical University, Hangzhou, China.,Molecular Medicine Institute, Zhejiang Chinese Medical University, Hangzhou, China
| | - Yanli Chen
- College of Basic Medicine and Public Health, Zhejiang Chinese Medical University, Hangzhou, China.,College of Life Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Zhaoyuan Yan
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Tian Tian Xu
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Xiangyao Wu
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Aiwen Pi
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Qingsheng Liu
- Hangzhou Hospital of Traditional Chinese Medicine, Guangxing Hospital Affiliated to Zhejiang University of Traditional Chinese Medicine, Hangzhou, China
| | - Hui Chai
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou, China.,Molecular Medicine Institute, Zhejiang Chinese Medical University, Hangzhou, China
| | - Songtao Li
- College of Basic Medicine and Public Health, Zhejiang Chinese Medical University, Hangzhou, China.,Molecular Medicine Institute, Zhejiang Chinese Medical University, Hangzhou, China
| | - Xiaobing Dou
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou, China.,Molecular Medicine Institute, Zhejiang Chinese Medical University, Hangzhou, China
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11
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The Role of Oxidative Stress in Cardiac Disease: From Physiological Response to Injury Factor. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:5732956. [PMID: 32509147 PMCID: PMC7244977 DOI: 10.1155/2020/5732956] [Citation(s) in RCA: 119] [Impact Index Per Article: 29.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 01/11/2020] [Accepted: 04/22/2020] [Indexed: 02/07/2023]
Abstract
Reactive oxygen species (ROS) are highly reactive chemical species containing oxygen, controlled by both enzymatic and nonenzymatic antioxidant defense systems. In the heart, ROS play an important role in cell homeostasis, by modulating cell proliferation, differentiation, and excitation-contraction coupling. Oxidative stress occurs when ROS production exceeds the buffering capacity of the antioxidant defense systems, leading to cellular and molecular abnormalities, ultimately resulting in cardiac dysfunction. In this review, we will discuss the physiological sources of ROS in the heart, the mechanisms of oxidative stress-related myocardial injury, and the implications of experimental studies and clinical trials with antioxidant therapies in cardiovascular diseases.
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12
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Activator protein-1 and caspase 8 mediate p38α MAPK-dependent cardiomyocyte apoptosis induced by palmitic acid. Apoptosis 2019; 24:395-403. [DOI: 10.1007/s10495-018-01510-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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13
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Jia P, Wu N, Jia D, Sun Y. Downregulation of MALAT1 alleviates saturated fatty acid-induced myocardial inflammatory injury via the miR-26a/HMGB1/TLR4/NF-κB axis. Diabetes Metab Syndr Obes 2019; 12:655-665. [PMID: 31123414 PMCID: PMC6511247 DOI: 10.2147/dmso.s203151] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Accepted: 03/04/2019] [Indexed: 12/12/2022] Open
Abstract
Purpose: The increased level of saturated fatty acids (SFAs) is found in patients with diabetes, obesity, and other metabolic disorders. SFAs can induce lipotoxic damage to cardiomyocytes, but the mechanism is unclear. The long noncoding RNA metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) acts as a key regulator in palmitic acid (PA)-induced hepatic steatosis, but its role in PA-induced myocardial lipotoxic injury is still unknown. The aim of this study was to explore the role and underlying mechanism of MALAT1 in PA-induced myocardial lipotoxic injury. Methods: MALAT1 expression in PA-treated human cardiomyocytes (AC16 cells) was detected by RT-qPCR. The effect of MALAT1 on PA-induced myocardial injury was measured by Cell Counting Kit-8, lactate dehydrogenase (LDH), and creatine kinase-MB (CK-MB) assays. Apoptosis was detected by flow cytometry. The activities of cytokines and nuclear factor (NF)-κB were detected by enzyme-linked immunosorbent assay. The interaction between MALAT1 and miR-26a was evaluated by a luciferase reporter assay and RT-qPCR. The regulatory effects of MALAT1 on high mobility group box 1 (HMGB1) expression were evaluated by RT-qPCR and western blotting. Results: MALAT1 was significantly upregulated in cardiomyocytes after PA treatment. Knockdown of MALAT1 increased the viability of PA-treated cardiomyocytes, decreased apoptosis, and reduced the levels of LDH, CK-MB, TNF-α, and IL-1β. Moreover, we found that MALAT1 specifically binds to miR-26a and observed a reciprocal negative regulatory relationship between these factors. We further found that the downregulation of MALAT1 represses HMGB1 expression, thereby inhibiting the activation of the Toll-like receptor 4 (TLR4)/NF-κB-mediated inflammatory response. These repressive effects were rescued by an miR-26a inhibitor. Conclusion: We demonstrate that MALAT1 is induced by SFAs and its downregulation alleviates SFA-induced myocardial inflammatory injury via the miR-26a/HMGB1/TLR4/NF-κB axis. Our findings provide new insight into the mechanism underlying myocardial lipotoxic injury.
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Affiliation(s)
- Pengyu Jia
- Department of Cardiology, the First Affiliated Hospital of China Medical University, Shenyang, Liaoning, People‘s Republic of China
| | - Nan Wu
- The Central Laboratory of the First Affiliated Hospital of China Medical University, Shenyang, Liaoning, People‘s Republic of China
| | - Dalin Jia
- Department of Cardiology, the First Affiliated Hospital of China Medical University, Shenyang, Liaoning, People‘s Republic of China
| | - Yingxian Sun
- Department of Cardiology, the First Affiliated Hospital of China Medical University, Shenyang, Liaoning, People‘s Republic of China
- Correspondence: Yingxian Sun; Dalin JiaDepartment of Cardiology, The First Affiliated Hospital of China Medical University, 155th North of Nanjing Street, Heping District, Shenyang 110001, Liaoning, People’s Republic of ChinaTel +86 248 328 2602; Tel +86 248 328 2602Fax +860 248 328 2602; +860 248 328 2688Email ;
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14
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Liu Z, Zheng S, Wang X, Qiu C, Guo Y. Novel ASK1 inhibitor AGI-1067 improves AGE-induced cardiac dysfunction by inhibiting MKKs/p38 MAPK and NF-κB apoptotic signaling. FEBS Open Bio 2018; 8:1445-1456. [PMID: 30186746 PMCID: PMC6120242 DOI: 10.1002/2211-5463.12499] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2018] [Revised: 06/14/2018] [Accepted: 06/25/2018] [Indexed: 12/28/2022] Open
Abstract
Heart failure has been identified as one of the clinical manifestations of diabetic cardiovascular complications. Excessive myocardium apoptosis characterizes cardiac dysfunctions, which are correlated with an increased level of advanced glycation end products (AGEs). In this study, we investigated the participation of reactive oxygen species (ROS) and the involvements of apoptosis signal-regulating kinase 1 (ASK1)/mitogen-activated protein kinase (MAPK) kinases (MKKs)/p38 MAPK and nuclear factor κB (NF-κB) pathways in AGE-induced apoptosis-mediated cardiac dysfunctions. The antioxidant and therapeutic effects of a novel ASK1 inhibitor, AGI-1067, were also studied. Myocardium and isolated primary myocytes were exposed to AGEs and treated with AGI-1067. Invasive hemodynamic and echocardiographic assessments were used to evaluate the cardiac functions. ROS formation was evaluated by dihydroethidium fluorescence staining. A terminal deoxynucleotidyl transferase dUTP nick end labelling assay was used to detect the apoptotic cells. ASK1 and NADPH activities were determined by kinase assays. The association between ASK1 and thioredoxin 1 (Trx1) was assessed by immunoprecipitation. Western blotting was used to evaluate the phosphorylation and expression levels of proteins. Our results showed that AGE exposure significantly activated ASK1/MKKs/p38 MAPK, which led to increased cardiac apoptosis and cardiac impairments. AGI-1067 administration inhibited the activation of MKKs/p38 MAPK by inhibiting the disassociation of ASK1 and Trx1, which suppressed the AGE-induced myocyte apoptosis. Moreover, the NF-κB activation as well as the ROS generation was inhibited. As a result, cardiac functions were improved. Our findings suggested that AGI-1067 recovered AGE-induced cardiac dysfunction by blocking both ASK1/MKKs/p38 and NF-κB apoptotic signaling pathways.
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Affiliation(s)
- Zhongwei Liu
- Key Laboratory of Biomedical Information Engineering of Ministry of Education School of Life Science and Technology Xi'an Jiaotong University China.,Department of Cardiology Shaanxi Provincial People's Hospital Xi'an China.,Department of Vascular Surgery Brigham and Women's Hospital Boston MA USA
| | - Shixiang Zheng
- Department of Vascular Surgery Brigham and Women's Hospital Boston MA USA.,Department of Critical Care Medicine Union Hospital of Fujian Medical University Fuzhou China
| | - Xi Wang
- Department of Vascular Surgery Brigham and Women's Hospital Boston MA USA.,Department of Obstetrics and Gynecology The Second Xiangya Hospital Central South University Changsha China
| | - Chuan Qiu
- Department of Biostatistics & Bioinformatics School of Public Health & Tropical Medicine Tulane University New Orleans LA USA
| | - Yan Guo
- Key Laboratory of Biomedical Information Engineering of Ministry of Education School of Life Science and Technology Xi'an Jiaotong University China
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15
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Al-Damry NT, Attia HA, Al-Rasheed NM, Al-Rasheed NM, Mohamad RA, Al-Amin MA, Dizmiri N, Atteya M. Sitagliptin attenuates myocardial apoptosis via activating LKB-1/AMPK/Akt pathway and suppressing the activity of GSK-3β and p38α/MAPK in a rat model of diabetic cardiomyopathy. Biomed Pharmacother 2018; 107:347-358. [PMID: 30099338 DOI: 10.1016/j.biopha.2018.07.126] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2018] [Revised: 07/07/2018] [Accepted: 07/24/2018] [Indexed: 12/27/2022] Open
Abstract
The present study aimed to investigate the protective effect of sitagliptin, a dipeptidyl peptidase-4 inhibitor, on diabetic cardiomyopathy (DCM)-associated apoptosis and if this effect is mediated via modulating the activity of the survival kinases; AMP-activated protein kinase (AMPK) and Akt & the apoptotic kinases; glycogen synthase kinase-3 β (GSK-3β) and p38 mitogen-activated protein kinase (p38MAPK). Diabetes was induced by a single intraperitoneal injection of streptozotocin (55 mg/kg). Diabetic rats were treated with sitagliptin (10 mg/kg/day, p.o.) and metformin (200 mg/kg/day, p.o. as positive control) for six weeks. Chronic hyperglycemia resulted in elevation of serum cardiac biomarkers reflecting cardiac damage which was supported by H&E stain. The mRNA levels of collagen types I and III were augmented reflecting cardiac fibrosis and hypertrophy which was supported by Masson trichome stain and enhanced phosphorylation of p38MAPK. Cardiac protein levels of cleaved casapse-3, BAX were elevated, whereas, the levels of Bcl-2 and p-BAD were reduced indicating cardiac apoptosis which could be attributed to the diabetes-induced reduced phosphorylation of Akt and AMPK with concomitant augmented activation of GSK-3β and p38MAPK. Protein levels of liver kinase B-1, the upstream kinase of AMPK were also supressed. Sitagliptin administration alleviated the decreased phosphorylation of AMPK and Akt, inactivated the GSK-3β and p38 AMPK, therefore, attenuating the apoptosis and hypertrophy induced by hyperglycemia in the diabetic heart. In conclusion, sitagliptin exhibits valuable therapeutic potential in the management of DCM by attenuating apoptosis. The underlying mechanism may involve the modulating activity of AMPK, Akt, GSK-3β and p38MAPK.
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Affiliation(s)
- Nouf T Al-Damry
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Hala A Attia
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia; Department of Biochemistry, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt.
| | - Nawal M Al-Rasheed
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Nouf M Al-Rasheed
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Raeesa A Mohamad
- Department of Anatomy, College of Medicine, King Saud University, Riyadh, Saudi Arabia; Department of Histology, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Maha A Al-Amin
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Nduna Dizmiri
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - Muhammad Atteya
- Department of Anatomy, College of Medicine, King Saud University, Riyadh, Saudi Arabia; Department of Histology, Faculty of Medicine, Cairo University, Cairo, Egypt
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16
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Leonardini A, D'Oria R, Incalza MA, Caccioppoli C, Andrulli Buccheri V, Cignarelli A, Paparella D, Margari V, Natalicchio A, Perrini S, Giorgino F, Laviola L. GLP-1 Receptor Activation Inhibits Palmitate-Induced Apoptosis via Ceramide in Human Cardiac Progenitor Cells. J Clin Endocrinol Metab 2017; 102:4136-4147. [PMID: 28938428 DOI: 10.1210/jc.2017-00970] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Accepted: 08/11/2017] [Indexed: 11/19/2022]
Abstract
CONTEXT Increased apoptosis of cardiomyocytes and cardiac progenitor cells (CPCs) in response to saturated fatty acids (SFAs) can lead to myocardial damage and dysfunction. Ceramides mediate lipotoxicity-induced apoptosis. Glucagonlike peptide-1 receptor (GLP1R) agonists exert beneficial effects on cardiac cells in experimental models. OBJECTIVE To investigate the protective effects of GLP1R activation on SFA-mediated apoptotic death of human CPCs. DESIGN Human CPCs were isolated from cardiac appendages of nondiabetic donors and then exposed to palmitate with or without pretreatment with the GLP1R agonist exendin-4. Ceramide accumulation was evaluated by immunofluorescence. Expression of key enzymes in de novo ceramide biosynthesis was studied by quantitative reverse-transcription polymerase chain reaction and immunoblotting. Apoptosis was evaluated by measuring release of oligonucleosomes, caspase-3 cleavage, caspase activity, and terminal deoxynucleotidyltransferase-mediated dUTP nick end labeling. RESULTS Exposure of the CPCs to palmitate resulted in 2.3- and 1.9-fold higher expression of ceramide synthase 5 (CERS5) and ceramide desaturase-1, respectively (P < 0.05). This was associated with intracellular accumulation of ceramide and activation of c-Jun NH2-terminal protein kinase (JNK) signaling and apoptosis (P < 0.05). Both coincubation with fumonisin B1, a specific ceramide synthase inhibitor, and CERS5 knockdown prevented ceramide accumulation, JNK activation, and apoptosis in response to palmitate (P < 0.05). Exendin-4 also prevented the activation of the ceramide biosynthesis and JNK in response to palmitate, inhibiting apoptosis (P < 0.05). CONCLUSIONS Excess palmitate results in activation of ceramide biosynthesis, JNK signaling, and apoptosis in human CPCs. GLP1R activation counteracts this lipotoxic damage via inhibition of ceramide generation, and this may represent a cardioprotective mechanism.
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Affiliation(s)
- Anna Leonardini
- Department of Emergency and Organ Transplantation, Section of Internal Medicine, Endocrinology, Andrology, and Metabolic Diseases, University of Bari Aldo Moro, I-70124 Bari, Italy
| | - Rossella D'Oria
- Department of Emergency and Organ Transplantation, Section of Internal Medicine, Endocrinology, Andrology, and Metabolic Diseases, University of Bari Aldo Moro, I-70124 Bari, Italy
| | - Maria Angela Incalza
- Department of Emergency and Organ Transplantation, Section of Internal Medicine, Endocrinology, Andrology, and Metabolic Diseases, University of Bari Aldo Moro, I-70124 Bari, Italy
| | - Cristina Caccioppoli
- Department of Emergency and Organ Transplantation, Section of Internal Medicine, Endocrinology, Andrology, and Metabolic Diseases, University of Bari Aldo Moro, I-70124 Bari, Italy
| | - Valentina Andrulli Buccheri
- Department of Emergency and Organ Transplantation, Section of Internal Medicine, Endocrinology, Andrology, and Metabolic Diseases, University of Bari Aldo Moro, I-70124 Bari, Italy
| | - Angelo Cignarelli
- Department of Emergency and Organ Transplantation, Section of Internal Medicine, Endocrinology, Andrology, and Metabolic Diseases, University of Bari Aldo Moro, I-70124 Bari, Italy
| | - Domenico Paparella
- Department of Emergency and Organ Transplantation, Section of Cardiac Surgery, University of Bari Aldo Moro, I-70124 Bari, Italy
- Cardiac Surgery, Santa Maria Hospital, I-70124 Bari, Italy
| | - Vito Margari
- Cardiac Surgery, Santa Maria Hospital, I-70124 Bari, Italy
| | - Annalisa Natalicchio
- Department of Emergency and Organ Transplantation, Section of Internal Medicine, Endocrinology, Andrology, and Metabolic Diseases, University of Bari Aldo Moro, I-70124 Bari, Italy
| | - Sebastio Perrini
- Department of Emergency and Organ Transplantation, Section of Internal Medicine, Endocrinology, Andrology, and Metabolic Diseases, University of Bari Aldo Moro, I-70124 Bari, Italy
| | - Francesco Giorgino
- Department of Emergency and Organ Transplantation, Section of Internal Medicine, Endocrinology, Andrology, and Metabolic Diseases, University of Bari Aldo Moro, I-70124 Bari, Italy
| | - Luigi Laviola
- Department of Emergency and Organ Transplantation, Section of Internal Medicine, Endocrinology, Andrology, and Metabolic Diseases, University of Bari Aldo Moro, I-70124 Bari, Italy
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17
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Liu L, Wang Z, Park HG, Xu C, Lawrence P, Su X, Wijendran V, Walker WA, Kothapalli KSD, Brenna JT. Human fetal intestinal epithelial cells metabolize and incorporate branched chain fatty acids in a structure specific manner. Prostaglandins Leukot Essent Fatty Acids 2017; 116:32-39. [PMID: 28088292 PMCID: PMC5260611 DOI: 10.1016/j.plefa.2016.12.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Revised: 11/30/2016] [Accepted: 12/01/2016] [Indexed: 10/20/2022]
Abstract
BACKGROUND Branched chain fatty acids (BCFA) are constituents of gastrointestinal (GI) tract in healthy newborn human infants, reduce the incidence of necrotizing enterocolitis (NEC) in a neonatal rat model, and are incorporated into small intestine cellular lipids in vivo. We hypothesize that BCFA are taken up, metabolized and incorporated into human fetal cells in vitro. METHODS Human H4 cells, a fetal non-transformed primary small intestine cell line, were incubated with albumin-bound non-esterified anteiso-17:0, iso-16:0, iso-18:0 and/or iso-20:0, and FA profiles in lipid fractions were analyzed. RESULTS All BCFA were readily incorporated as major constituents of cellular lipids. Anteiso-17:0 was preferentially taken up, and was most effective among BCFA tested in displacing normal (n-) FA. The iso BCFA were preferred in reverse order of chain length, with iso-20:0 appearing at lowest level. BCFA incorporation in phospholipids (PL) followed the same order of preference, accumulating 42% of FA as BCFA with no overt morphological signs of cell death. Though cholesterol esters (CE) are at low cellular concentration among lipid classes examined, CE had the greatest affinity for BCFA, accumulating 65% of FA as BCFA. BCFA most effectively displaced lower saturated FA. Iso-16:0, iso-18:0 and anteiso-17:0 were both elongated and chain shortened by ±C2. Iso-20:0 was chain shortened to iso-18:0 and iso-16:0 but not elongated. CONCLUSIONS Nontransformed human fetal intestinal epithelial cells incorporate high levels of BCFA when they are available and metabolize them in a structure specific manner. These findings imply that specific pathways for handling BCFA are present in the lumen-facing cells of the human fetal GI tract that is exposed to vernix-derived BCFA in late gestation.
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Affiliation(s)
- Lei Liu
- College of Veterinary Medicine, Hunan Agricultural University, Changsha, Hunan 410128, China; Division of Nutritional Sciences, Cornell University, Ithaca, NY 14853, USA
| | - Zhen Wang
- Division of Nutritional Sciences, Cornell University, Ithaca, NY 14853, USA
| | - Hui Gyu Park
- Division of Nutritional Sciences, Cornell University, Ithaca, NY 14853, USA
| | - Chuang Xu
- Division of Nutritional Sciences, Cornell University, Ithaca, NY 14853, USA; College of Animal Science and Technology, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang 163319, China
| | - Peter Lawrence
- Division of Nutritional Sciences, Cornell University, Ithaca, NY 14853, USA
| | - Xueli Su
- Division of Nutritional Sciences, Cornell University, Ithaca, NY 14853, USA; Jingchu University of Technology, Jingmen, Hubei 448000, China
| | - Vasuki Wijendran
- Mucosal Immunology and Biology Research Center, Massachusetts General Hospital for Children, Charlestow, MA, USA
| | - W Allan Walker
- Mucosal Immunology and Biology Research Center, Massachusetts General Hospital for Children, Charlestow, MA, USA
| | | | - J Thomas Brenna
- Division of Nutritional Sciences, Cornell University, Ithaca, NY 14853, USA.
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Li G, Wang G, Ma L, Guo J, Song J, Ma L, Zhao X. miR-22 regulates starvation-induced autophagy and apoptosis in cardiomyocytes by targeting p38α. Biochem Biophys Res Commun 2016; 478:1165-72. [PMID: 27544030 DOI: 10.1016/j.bbrc.2016.08.086] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Accepted: 08/15/2016] [Indexed: 11/19/2022]
Abstract
microRNAs (miRNAs) are short noncoding RNAs that function in RNA silencing and post-transcriptional regulation of gene expression. They play critical regulatory roles in many cardiovascular diseases, including ischemia-induced cardiac injury. Here, we report microRNA-22, highly expressed in the heart, can protect cardiomyocytes from starvation-induced injury through promoting autophagy and inhibiting apoptosis. Quantitative real-time PCR (qPCR) demonstrated that the expression of miR-22 in starvation-treated neonatal rat cardiomyocytes (NRCMs) was markedly down-regulated. Over-expression of miR-22 significantly promoted starvation-induced autophagy and inhibited starvation-induced apoptosis in NRCMs. In contrast, reduction of miR-22 suppressed autophagy and accelerated apoptosis in starving NRCMs. Immunohistochemistry and TUNEL staining results also provided further evidence that miR-22 promoted autophagy and inhibited apoptosis in myocardial cells. Furthermore, both luciferase reporter assay and western blot analysis were performed to identify p38α as a direct target of miR-22. Taken together, miR-22 plays an important role in regulating autophagy and apoptosis in ischemic myocardium through targeting p38α. miR-22 may represent a potential therapeutic target for the treatment of ischemic heart diseases.
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Affiliation(s)
- Guoran Li
- Department of Cardiology, Changhai Hospital, Second Military Medical University, Shanghai 200433, China
| | - Guokun Wang
- Institution of Thoracic Cardiac Surgery, Department of Cardiothoracic Surgery, Changhai Hospital, Shanghai 200433, China
| | - Liangliang Ma
- Department of Cardiology, Changhai Hospital, Second Military Medical University, Shanghai 200433, China
| | - Jun Guo
- Department of Cardiology, Changhai Hospital, Second Military Medical University, Shanghai 200433, China
| | - Jingwen Song
- Department of Cardiology, Changhai Hospital, Second Military Medical University, Shanghai 200433, China
| | - Liping Ma
- Department of Cardiology, Changhai Hospital, Second Military Medical University, Shanghai 200433, China.
| | - Xianxian Zhao
- Department of Cardiology, Changhai Hospital, Second Military Medical University, Shanghai 200433, China.
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19
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Wang S, Ding L, Ji H, Xu Z, Liu Q, Zheng Y. The Role of p38 MAPK in the Development of Diabetic Cardiomyopathy. Int J Mol Sci 2016; 17:ijms17071037. [PMID: 27376265 PMCID: PMC4964413 DOI: 10.3390/ijms17071037] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Revised: 06/20/2016] [Accepted: 06/24/2016] [Indexed: 02/06/2023] Open
Abstract
Diabetic cardiomyopathy (DCM) is a major complication of diabetes that contributes to an increase in mortality. A number of mechanisms potentially explain the development of DCM including oxidative stress, inflammation and extracellular fibrosis. Mitogen-activated protein kinase (MAPK)-mediated signaling pathways are common among these pathogenic responses. Among the diverse array of kinases, extensive attention has been given to p38 MAPK due to its capacity for promoting or inhibiting the translation of target genes. Growing evidence has indicated that p38 MAPK is aberrantly expressed in the cardiovascular system, including the heart, under both experimental and clinical diabetic conditions and, furthermore, inhibition of p38 MAPK activation in transgenic animal model or with its pharmacologic inhibitor significantly prevents the development of DCM, implicating p38 MAPK as a novel diagnostic indicator and therapeutic target for DCM. This review summarizes our current knowledge base to provide an overview of the impact of p38 MAPK signaling in diabetes-induced cardiac remodeling and dysfunction.
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Affiliation(s)
- Shudong Wang
- Cardiovascular Center, The First Hospital of Jilin University, Changchun 130021, China.
| | - Lijuan Ding
- Department of Radiation Oncology, the First Hospital of Jilin University, Changchun 130021, China.
| | - Honglei Ji
- Cardiovascular Center, The First Hospital of Jilin University, Changchun 130021, China.
| | - Zheng Xu
- Cardiovascular Center, The First Hospital of Jilin University, Changchun 130021, China.
| | - Quan Liu
- Cardiovascular Center, The First Hospital of Jilin University, Changchun 130021, China.
| | - Yang Zheng
- Cardiovascular Center, The First Hospital of Jilin University, Changchun 130021, China.
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20
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Panneerselvam L, Govindarajan V, Ameeramja J, Nair HR, Perumal E. Single oral acute fluoride exposure causes changes in cardiac expression of oxidant and antioxidant enzymes, apoptotic and necrotic markers in male rats. Biochimie 2015; 119:27-35. [DOI: 10.1016/j.biochi.2015.10.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2015] [Accepted: 10/02/2015] [Indexed: 10/22/2022]
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Álvarez-Pérez B, Homs J, Bosch-Mola M, Puig T, Reina F, Verdú E, Boadas-Vaello P. Epigallocatechin-3-gallate treatment reduces thermal hyperalgesia after spinal cord injury by down-regulating RhoA expression in mice. Eur J Pain 2015; 20:341-52. [DOI: 10.1002/ejp.722] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/31/2015] [Indexed: 12/30/2022]
Affiliation(s)
- B. Álvarez-Pérez
- Research Group of Clinical Anatomy; Embryology; Neuroscience and Molecular Oncology (NEOMA); Department of Medical Sciences; Universitat de Girona; Spain
| | - J. Homs
- Research Group of Clinical Anatomy; Embryology; Neuroscience and Molecular Oncology (NEOMA); Department of Medical Sciences; Universitat de Girona; Spain
- Department of Physical Therapy; EUSES - Universitat de Girona; Spain
| | - M. Bosch-Mola
- Research Group of Clinical Anatomy; Embryology; Neuroscience and Molecular Oncology (NEOMA); Department of Medical Sciences; Universitat de Girona; Spain
| | - T. Puig
- Research Group of Clinical Anatomy; Embryology; Neuroscience and Molecular Oncology (NEOMA); Department of Medical Sciences; Universitat de Girona; Spain
| | - F. Reina
- Research Group of Clinical Anatomy; Embryology; Neuroscience and Molecular Oncology (NEOMA); Department of Medical Sciences; Universitat de Girona; Spain
| | - E. Verdú
- Research Group of Clinical Anatomy; Embryology; Neuroscience and Molecular Oncology (NEOMA); Department of Medical Sciences; Universitat de Girona; Spain
| | - P. Boadas-Vaello
- Research Group of Clinical Anatomy; Embryology; Neuroscience and Molecular Oncology (NEOMA); Department of Medical Sciences; Universitat de Girona; Spain
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