1
|
Chen S, Zou Y, Song C, Cao K, Cai K, Wu Y, Zhang Z, Geng D, Sun W, Ouyang N, Zhang N, Li Z, Sun G, Zhang Y, Sun Y, Zhang Y. The role of glycolytic metabolic pathways in cardiovascular disease and potential therapeutic approaches. Basic Res Cardiol 2023; 118:48. [PMID: 37938421 PMCID: PMC10632287 DOI: 10.1007/s00395-023-01018-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 10/20/2023] [Accepted: 10/23/2023] [Indexed: 11/09/2023]
Abstract
Cardiovascular disease (CVD) is a major threat to human health, accounting for 46% of non-communicable disease deaths. Glycolysis is a conserved and rigorous biological process that breaks down glucose into pyruvate, and its primary function is to provide the body with the energy and intermediate products needed for life activities. The non-glycolytic actions of enzymes associated with the glycolytic pathway have long been found to be associated with the development of CVD, typically exemplified by metabolic remodeling in heart failure, which is a condition in which the heart exhibits a rapid adaptive response to hypoxic and hypoxic conditions, occurring early in the course of heart failure. It is mainly characterized by a decrease in oxidative phosphorylation and a rise in the glycolytic pathway, and the rise in glycolysis is considered a hallmark of metabolic remodeling. In addition to this, the glycolytic metabolic pathway is the main source of energy for cardiomyocytes during ischemia-reperfusion. Not only that, the auxiliary pathways of glycolysis, such as the polyol pathway, hexosamine pathway, and pentose phosphate pathway, are also closely related to CVD. Therefore, targeting glycolysis is very attractive for therapeutic intervention in CVD. However, the relationship between glycolytic pathway and CVD is very complex, and some preclinical studies have confirmed that targeting glycolysis does have a certain degree of efficacy, but its specific role in the development of CVD has yet to be explored. This article aims to summarize the current knowledge regarding the glycolytic pathway and its key enzymes (including hexokinase (HK), phosphoglucose isomerase (PGI), phosphofructokinase-1 (PFK1), aldolase (Aldolase), phosphoglycerate metatase (PGAM), enolase (ENO) pyruvate kinase (PKM) lactate dehydrogenase (LDH)) for their role in cardiovascular diseases (e.g., heart failure, myocardial infarction, atherosclerosis) and possible emerging therapeutic targets.
Collapse
Affiliation(s)
- Shuxian Chen
- Department of Cardiology, The First Hospital of China Medical University, 155 Nanjing North Street, Heping District, Shenyang, 110001, Liaoning Province, People's Republic of China
| | - Yuanming Zou
- Department of Cardiology, The First Hospital of China Medical University, 155 Nanjing North Street, Heping District, Shenyang, 110001, Liaoning Province, People's Republic of China
| | - Chunyu Song
- Department of Cardiology, The First Hospital of China Medical University, 155 Nanjing North Street, Heping District, Shenyang, 110001, Liaoning Province, People's Republic of China
| | - Kexin Cao
- Department of Cardiology, The First Hospital of China Medical University, 155 Nanjing North Street, Heping District, Shenyang, 110001, Liaoning Province, People's Republic of China
| | - Kexin Cai
- Department of Cardiology, The First Hospital of China Medical University, 155 Nanjing North Street, Heping District, Shenyang, 110001, Liaoning Province, People's Republic of China
| | - Yanjiao Wu
- Department of Cardiology, The First Hospital of China Medical University, 155 Nanjing North Street, Heping District, Shenyang, 110001, Liaoning Province, People's Republic of China
| | - Zhaobo Zhang
- Department of Cardiology, The First Hospital of China Medical University, 155 Nanjing North Street, Heping District, Shenyang, 110001, Liaoning Province, People's Republic of China
| | - Danxi Geng
- Department of Cardiology, The First Hospital of China Medical University, 155 Nanjing North Street, Heping District, Shenyang, 110001, Liaoning Province, People's Republic of China
| | - Wei Sun
- Department of Thyroid Surgery, The First Hospital of China Medical University, 155 Nanjing North Street, Heping District, Shenyang, 110001, Liaoning Province, People's Republic of China.
| | - Nanxiang Ouyang
- Department of Cardiology, The First Hospital of China Medical University, 155 Nanjing North Street, Heping District, Shenyang, 110001, Liaoning Province, People's Republic of China.
| | - Naijin Zhang
- Department of Cardiology, The First Hospital of China Medical University, 155 Nanjing North Street, Heping District, Shenyang, 110001, Liaoning Province, People's Republic of China.
- Institute of Health Sciences, China Medical University, 77 Puhe Road, Shenbei New District, Shenyang, 110122, Liaoning Province, People's Republic of China.
- Key Laboratory of Reproductive and Genetic Medicine, China Medical University, National Health Commission, 77 Puhe Road, Shenbei New District, Shenyang, 110122, Liaoning Province, People's Republic of China.
| | - Zhao Li
- Department of Cardiology, The First Hospital of China Medical University, 155 Nanjing North Street, Heping District, Shenyang, 110001, Liaoning Province, People's Republic of China.
| | - Guozhe Sun
- Department of Cardiology, The First Hospital of China Medical University, 155 Nanjing North Street, Heping District, Shenyang, 110001, Liaoning Province, People's Republic of China.
| | - Yixiao Zhang
- Department of Urology Surgery, Shengjing Hospital of China Medical University, 36 Sanhao Street, Heping District, Shenyang, 110004, Liaoning Province, People's Republic of China.
| | - Yingxian Sun
- Department of Cardiology, The First Hospital of China Medical University, 155 Nanjing North Street, Heping District, Shenyang, 110001, Liaoning Province, People's Republic of China.
- Institute of Health Sciences, China Medical University, 77 Puhe Road, Shenbei New District, Shenyang, 110122, Liaoning Province, People's Republic of China.
| | - Ying Zhang
- Department of Cardiology, The First Hospital of China Medical University, 155 Nanjing North Street, Heping District, Shenyang, 110001, Liaoning Province, People's Republic of China.
- Institute of Health Sciences, China Medical University, 77 Puhe Road, Shenbei New District, Shenyang, 110122, Liaoning Province, People's Republic of China.
| |
Collapse
|
2
|
Tian H, Zhao X, Zhang Y, Xia Z. Abnormalities of glucose and lipid metabolism in myocardial ischemia-reperfusion injury. Biomed Pharmacother 2023; 163:114827. [PMID: 37141734 DOI: 10.1016/j.biopha.2023.114827] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Revised: 04/23/2023] [Accepted: 04/30/2023] [Indexed: 05/06/2023] Open
Abstract
Myocardial ischemia-reperfusion injury is a common condition in cardiovascular diseases, and the mechanism of its occurrence involves multiple complex metabolic pathways and signaling pathways. Among these pathways, glucose metabolism and lipid metabolism play important roles in regulating myocardial energy metabolism. Therefore, this article focuses on the roles of glucose metabolism and lipid metabolism in myocardial ischemia-reperfusion injury, including glycolysis, glucose uptake and transport, glycogen metabolism and the pentose phosphate pathway; and triglyceride metabolism, fatty acid uptake and transport, phospholipid metabolism, lipoprotein metabolism, and cholesterol metabolism. Finally, due to the different alterations and development of glucose metabolism and lipid metabolism in myocardial ischemia-reperfusion, there are also complex interregulatory relationships between them. In the future, modulating the equilibrium between glucose metabolism and lipid metabolism in cardiomyocytes and ameliorating aberrations in myocardial energy metabolism represent highly promising novel strategies for addressing myocardial ischemia-reperfusion injury. Therefore, a comprehensive exploration of glycolipid metabolism can offer novel theoretical and clinical insights into the prevention and treatment of myocardial ischemia-reperfusion injury.
Collapse
Affiliation(s)
- Hao Tian
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, China
| | - Xiaoshuai Zhao
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, China
| | - Yuxi Zhang
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, China
| | - Zhongyuan Xia
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, China.
| |
Collapse
|
3
|
Yan Z, Li S, Wang Y, Li J, Ma C, Guo Y, Zhang L. Discovery of novel heterocyclic derivatives as potential glycogen phosphorylase inhibitors with a cardioprotective effect. Bioorg Chem 2022; 129:106120. [DOI: 10.1016/j.bioorg.2022.106120] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 08/16/2022] [Accepted: 08/28/2022] [Indexed: 12/22/2022]
|
4
|
Wang L, Li J, Di LJ. Glycogen synthesis and beyond, a comprehensive review of GSK3 as a key regulator of metabolic pathways and a therapeutic target for treating metabolic diseases. Med Res Rev 2021; 42:946-982. [PMID: 34729791 PMCID: PMC9298385 DOI: 10.1002/med.21867] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 08/01/2021] [Accepted: 10/24/2021] [Indexed: 12/19/2022]
Abstract
Glycogen synthase kinase‐3 (GSK3) is a highly evolutionarily conserved serine/threonine protein kinase first identified as an enzyme that regulates glycogen synthase (GS) in response to insulin stimulation, which involves GSK3 regulation of glucose metabolism and energy homeostasis. Both isoforms of GSK3, GSK3α, and GSK3β, have been implicated in many biological and pathophysiological processes. The various functions of GSK3 are indicated by its widespread distribution in multiple cell types and tissues. The studies of GSK3 activity using animal models and the observed effects of GSK3‐specific inhibitors provide more insights into the roles of GSK3 in regulating energy metabolism and homeostasis. The cross‐talk between GSK3 and some important energy regulators and sensors and the regulation of GSK3 in mitochondrial activity and component function further highlight the molecular mechanisms in which GSK3 is involved to regulate the metabolic activity, beyond its classical regulatory effect on GS. In this review, we summarize the specific roles of GSK3 in energy metabolism regulation in tissues that are tightly associated with energy metabolism and the functions of GSK3 in the development of metabolic disorders. We also address the impacts of GSK3 on the regulation of mitochondrial function, activity and associated metabolic regulation. The application of GSK3 inhibitors in clinical tests will be highlighted too. Interactions between GSK3 and important energy regulators and GSK3‐mediated responses to different stresses that are related to metabolism are described to provide a brief overview of previously less‐appreciated biological functions of GSK3 in energy metabolism and associated diseases through its regulation of GS and other functions.
Collapse
Affiliation(s)
- Li Wang
- Proteomics, Metabolomics, and Drug Development Core, Faculty of Health Sciences, University of Macau, Macau, China.,Department of Biomedical Sciences, Faculty of Health Sciences, Macau, China.,Cancer Center of the Faculty of Health Sciences, University of Macau, Macau, China.,Institute of Translational Medicine, University of Macau, Macau, China.,Ministry of Education, Frontiers Science Center for Precision Oncology, University of Macau, Macau, China
| | - Jiajia Li
- Department of Biomedical Sciences, Faculty of Health Sciences, Macau, China.,Cancer Center of the Faculty of Health Sciences, University of Macau, Macau, China.,Institute of Translational Medicine, University of Macau, Macau, China.,Ministry of Education, Frontiers Science Center for Precision Oncology, University of Macau, Macau, China
| | - Li-Jun Di
- Department of Biomedical Sciences, Faculty of Health Sciences, Macau, China.,Cancer Center of the Faculty of Health Sciences, University of Macau, Macau, China.,Institute of Translational Medicine, University of Macau, Macau, China.,Ministry of Education, Frontiers Science Center for Precision Oncology, University of Macau, Macau, China
| |
Collapse
|
5
|
Wang C, Ding L, Zhao J, Cao B, He M. Effect of Composite Nanoparticle CeO₂ on Myocardial Ischemic Re-Infusion of Cardio Myocyte Apoptosis in Mouse. JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY 2021; 21:1397-1402. [PMID: 33183490 DOI: 10.1166/jnn.2021.18643] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The myocardial I/R damage is very complicated. Apoptosis is considered to its a critical mechanism. During the cardiac muscle I/R process, oxygen-free radicals play a pivotal role. Arrhythmias, as well as enlargement of the area of myocardial infarction after cardiac muscle I/R process, are caused by adequate blast generated O2- ion free radicals. During the ischemia-reperfusion process, a large amount of O2- ion free radicals destroyed the cell structure, and it undergoes lipid peroxidation with unsaturated fatty acids that contain a large number of phospholipids in the cell membrane, causing membrane proteins such as ion channels and enzymes on the cell membrane. The activity of cell is reduced, which affects the function of cell membrane and organelle membrane, destroys its integrity and reduces fluidity.We observed the effects of cerium dioxide nanoparticles on glutathione peroxidase as well as superoxide dismutase, also propionate in myocardial tissue of I/R injury in the mouse. Its effects of malondialdehyde and apoptosis were explored to see its protective effect and to provide more preventive measures for ischemia-reperfusion injury.
Collapse
Affiliation(s)
- Chengbin Wang
- Department of Anesthesiology, Beijing Anzhen Hospital Capital Medical University, Beijing, 100029, China
| | - Lin Ding
- Department of Anesthesiology, Peking University International Hospital, Beijing, 102206, China
| | - Jiamei Zhao
- Department of Anesthesiology, Beijing Anzhen Hospital Capital Medical University, Beijing, 100029, China
| | - Beibei Cao
- Ambery Biotechnologies, Beijing, 102609, China
| | - Mingwei He
- Department of Anesthesiology, Beijing Anzhen Hospital Capital Medical University, Beijing, 100029, China
| |
Collapse
|
6
|
Preston CC, Larsen TD, Eclov JA, Louwagie EJ, Gandy TCT, Faustino RS, Baack ML. Maternal High Fat Diet and Diabetes Disrupts Transcriptomic Pathways That Regulate Cardiac Metabolism and Cell Fate in Newborn Rat Hearts. Front Endocrinol (Lausanne) 2020; 11:570846. [PMID: 33042024 PMCID: PMC7527411 DOI: 10.3389/fendo.2020.570846] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Accepted: 08/18/2020] [Indexed: 12/14/2022] Open
Abstract
Background: Children born to diabetic or obese mothers have a higher risk of heart disease at birth and later in life. Using chromatin immunoprecipitation sequencing, we previously demonstrated that late-gestation diabetes, maternal high fat (HF) diet, and the combination causes distinct fuel-mediated epigenetic reprogramming of rat cardiac tissue during fetal cardiogenesis. The objective of the present study was to investigate the overall transcriptional signature of newborn offspring exposed to maternal diabetes and maternal H diet. Methods: Microarray gene expression profiling of hearts from diabetes exposed, HF diet exposed, and combination exposed newborn rats was compared to controls. Functional annotation, pathway and network analysis of differentially expressed genes were performed in combination exposed and control newborn rat hearts. Further downstream metabolic assessments included measurement of total and phosphorylated AKT2 and GSK3β, as well as quantification of glycolytic capacity by extracellular flux analysis and glycogen staining. Results: Transcriptional analysis identified significant fuel-mediated changes in offspring cardiac gene expression. Specifically, functional pathways analysis identified two key signaling cascades that were functionally prioritized in combination exposed offspring hearts: (1) downregulation of fibroblast growth factor (FGF) activated PI3K/AKT pathway and (2) upregulation of peroxisome proliferator-activated receptor gamma coactivator alpha (PGC1α) mitochondrial biogenesis signaling. Functional metabolic and histochemical assays supported these transcriptome changes, corroborating diabetes- and diet-induced cardiac transcriptome remodeling and cardiac metabolism in offspring. Conclusion: This study provides the first data accounting for the compounding effects of maternal hyperglycemia and hyperlipidemia on the developmental cardiac transcriptome, and elucidates nuanced and novel features of maternal diabetes and diet on regulation of heart health.
Collapse
Affiliation(s)
- Claudia C. Preston
- Genetics and Genomics Group, Sanford Research, Sioux Falls, SD, United States
| | - Tricia D. Larsen
- Environmental Influences on Health and Disease Group, Sanford Research, Sioux Falls, SD, United States
| | - Julie A. Eclov
- Environmental Influences on Health and Disease Group, Sanford Research, Sioux Falls, SD, United States
| | - Eli J. Louwagie
- Environmental Influences on Health and Disease Group, Sanford Research, Sioux Falls, SD, United States
| | - Tyler C. T. Gandy
- Environmental Influences on Health and Disease Group, Sanford Research, Sioux Falls, SD, United States
| | - Randolph S. Faustino
- Genetics and Genomics Group, Sanford Research, Sioux Falls, SD, United States
- Department of Pediatrics, Sanford School of Medicine of the University of South Dakota, Sioux Falls, SD, United States
| | - Michelle L. Baack
- Environmental Influences on Health and Disease Group, Sanford Research, Sioux Falls, SD, United States
- Department of Pediatrics, Sanford School of Medicine of the University of South Dakota, Sioux Falls, SD, United States
| |
Collapse
|
7
|
Wang J, Liu J, Xie L, Cai X, Ma X, Gong J. Bisoprolol, a β 1 antagonist, protects myocardial cells from ischemia-reperfusion injury via PI3K/AKT/GSK3β pathway. Fundam Clin Pharmacol 2020; 34:708-720. [PMID: 32363697 DOI: 10.1111/fcp.12562] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 04/23/2020] [Accepted: 04/29/2020] [Indexed: 12/30/2022]
Abstract
The aim of this work was to explore whether bisoprolol plays a protective role in cardiomyocytes against ischemia-reperfusion injury via PI3K/AKT/ GSK3β pathway. We pretreated male Sprague Dawley (SD) rats with bisoprolol by oral administration prior to 0.5 h ischemia/4 h reperfusion. Myocardial infarct size and serum levels of cTnI and CK-MB were measured. In vitro, H9c2 cells were treated with hypoxia and reoxygenation, followed by measurement of cell viability, apoptosis, ROS production, cytometry, activities of AKT, GSK3β, and p-38 in the presence and absence of GSK3β siRNA. We found that bisoprolol reduced infarct size from 44% in I/R group to 31% in treated group (P < 0.05). The levels of cTnI and CK-MB were decreased from 286 ± 7 pg/mL and 32.2 ± 2 ng/mL in I/R group to 196 ± 2 pg/mL and 19.6 ± 0.9 ng/mL in the treated group, respectively (P < 0.05). Bisoprolol also increased cell viability while decreased apoptosis and ROS production in the treatment of hypoxia/ reoxygenation. Furthermore, bisoprolol increased AKT and GSK3β phosphorylation, an effect that was immediately eliminated by LY294002. GSK3β-specific siRNA experiment further confirmed that bisoprolol protected the myocardium against hypoxia/reoxygenation-induced injury via suppressing GSK3β activity. In conclusion, bisoprolol protected myocardium against ischemia-reperfusion injury via the PI3K/AKT/ GSK3β pathway.
Collapse
Affiliation(s)
- Jing Wang
- Department of Cardiology, Jinling Hospital, Nanjing University School of Medicine, 305 East Zhongshan Rd., Nanjing, 210002, Jiangsu, China
| | - Jing Liu
- Department of Cardiology, Jinling Hospital, Nanjing University School of Medicine, 305 East Zhongshan Rd., Nanjing, 210002, Jiangsu, China
| | - Liang Xie
- Department of Cardiology, Jinling Hospital, Nanjing University School of Medicine, 305 East Zhongshan Rd., Nanjing, 210002, Jiangsu, China
| | - Xiaomin Cai
- Department of Cardiology, Jinling Hospital, Nanjing University School of Medicine, 305 East Zhongshan Rd., Nanjing, 210002, Jiangsu, China
| | - Xiaohua Ma
- Department of Cardiology, Jinling Hospital, Nanjing University School of Medicine, 305 East Zhongshan Rd., Nanjing, 210002, Jiangsu, China
| | - Jianbin Gong
- Department of Cardiology, Jinling Hospital, Nanjing University School of Medicine, 305 East Zhongshan Rd., Nanjing, 210002, Jiangsu, China
| |
Collapse
|
8
|
Abstract
The finding of "glycogen synthase kinase-3" (GSK-3) was initially identified as a protein kinase that phosphorylate and inhibited glycogen synthase. However, it was soon discovered that GSK-3 also has significant impact in regulation of truly astonishing number of critical intracellular signaling pathways ranging from regulation of cell growth, neurology, heart failure, diabetes, aging, inflammation, and cancer. Recent studies have validated the feasibility of targeting GSK-3 for its vital therapeutic potential to maintain normal myocardial homeostasis, conversely, its loss is incompatible with life as it can abrupt cell cycle and endorse fatal cardiomyopathy. The current study focuses on its expanding therapeutic action in myocardial tissue, concentrating primarily on its role in diabetes-associated cardiac complication, apoptosis and metabolism, heart failure, cardiac hypertrophy, and myocardial infarction. The current report also includes the finding of our previous investigation that has shown the impact of GSK-3β inhibitor against diabetes-associated myocardial injury and experimentally induced myocardial infarction. We have also discussed some recent identified GSK-3β inhibitors for their cardio-protective potential. The crosstalk of various underlying mechanisms that highlight the significant role of GSK-3β in myocardial pathophysiology have been discussed in the present report. For these literatures, we will rely profoundly on our previous studies and those of others to reconcile some of the deceptive contradictions in the literature.
Collapse
|
9
|
Naderi-Boldaji V, Joukar S, Noorafshan A, Bahreinipour MA. Limb Blood Flow Restriction Plus Mild Aerobic Exercise Training Protects the Heart Against Isoproterenol-Induced Cardiac Injury in Old Rats: Role of GSK-3β. Cardiovasc Toxicol 2020; 19:210-219. [PMID: 30406466 DOI: 10.1007/s12012-018-9490-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The present study was conducted to evaluate the effect of blood flow restriction (BFR) training on cardiac resistance to isoproterenol (ISO) induced heart injury in old rats and examined the hypothesis that BFR training may interfere with age-associated impairment of mitochondria by the inhibitory phosphorylation of GSK-3β at Ser9. Old male Wistar rats were divided into the following six groups: CTL (control), ISO (isoproterenol-treated), Sh + ISO (sham-operated plus ISO), BFR + ISO (blood flow restriction plus ISO), Sh-Ex + ISO (sham-operated subjected to exercise and ISO), and BFR-Ex + ISO (blood flow restriction along with exercise and ISO). 10 weeks of exercise training was considered. Then, cardiac injury was induced and physiological, histological, and biochemical parameters were recorded and assessed. Compared to CTL group, isoproterenol administration significantly reduced the systolic arterial pressure (SAP), left-ventricular systolic pressure (LVSP), and ± dp/dt max (P < 0.05). BFR training improved these parameters in the way that BFR-Ex + ISO group had higher SAP, LVSP and ± dp/dt max (P < 0.05) and lower LVEDP (left-ventricular end diastolic pressure) (P < 0.01) than untrained and Sh-Ex + ISO groups. The pS9-GSK-3β and pS9-GSK-3β/GSK-3β ratio were increased in the BFR-Ex + ISO group compared to CTL, ISO, Sh + ISO, and BFR + ISO groups (P < 0.05). The level of plasma cardiac Troponin-I and the severity of the injuries were significantly reduced in BFR-Ex + ISO group versus other cardiac damaged groups. In conclusion, our findings clearly confirmed the cardio-protective effect of BFR training against ISO-induced myocardial injury. Increased phosphorylated GSK-3β and angiogenesis in this model of exercise justify the resistance of old hearts facing stressful situations.
Collapse
Affiliation(s)
- Vida Naderi-Boldaji
- Physiology Research Center, Institute of Basic and Clinical Physiology Sciences, Department of Physiology and Pharmacology, Afzalipour Faculty of Medicine, Kerman University of Medical Sciences, Kerman, Iran.,Neuroscience Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | - Siyavash Joukar
- Cardiovascular Research Center, Institute of Basic and Clinical Physiology Sciences, Department of Physiology and Pharmacology, Afzalipour Faculty of Medicine, Kerman University of Medical Sciences, P. O. Box 7616914115, Kerman, Iran. .,Neuroscience Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran.
| | - Ali Noorafshan
- Histomorphometry and Stereology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad-Ali Bahreinipour
- Department of Physical Education, Faculty of Shahid Chamran, Kerman Branch, Technical and Vocational University (YVU), Tehran, Iran
| |
Collapse
|
10
|
Affiliation(s)
- Diem H Tran
- 1 Division of Cardiology Department of Internal Medicine University of Texas Southwestern Medical Center Dallas TX
| | - Zhao V Wang
- 1 Division of Cardiology Department of Internal Medicine University of Texas Southwestern Medical Center Dallas TX
| |
Collapse
|
11
|
Dai Y, Wang Z, Quan M, Lv Y, Li Y, Xin HB, Qian Y. Asiatic acid protests against myocardial ischemia/reperfusion injury via modulation of glycometabolism in rat cardiomyocyte. DRUG DESIGN DEVELOPMENT AND THERAPY 2018; 12:3573-3582. [PMID: 30498333 PMCID: PMC6207266 DOI: 10.2147/dddt.s175116] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Background Asiatic acid is a reported glycogen phosphorylase inhibitor derived from the tropical medicinal plant Centella asiatica and exhibits myocardial protection both in vivo and in vitro. The purpose of this study was to evaluate the effects of asiatic acid on myocardial ischemia/reperfusion (MI/R) injury and investigate the underlying mechanisms associated with the modulation of glycometabolism in cardiomyocyte. Materials and methods The rats were subjected to MI/R with or without asiatic acid pretreatment. The cardiac function indexes, the size of myocardial infarction, and plasma lactate dehydrogenase (LDH) and creatine kinase (CK) activities were detected. Cardiomyocyte apoptosis was analyzed by TUNEL assay. The Akt/GSK-3β activation was measured by Western blot. The glycogen content, plasma glucose and lactate concentrations were determined following MI/R. The mRNA and protein levels of PPARγ and GLUT4 were determined by real-time PCR and Western blot, respectively. Results Asiatic acid pretreatment significantly improved the cardiac function indexes, attenuated the size of myocardial infarction, reduced LDH and CK activities, and suppressed cardiomyocyte apoptosis after MI/R. Asiatic acid activated Akt/GSK-3β signal pathway in the myocardium following MI/R injury. In addition, asiatic acid effectively suppressed MI/R-induced glycogen breakdown and inhibited the elevation of plasma glucose and lactate concentrations. Asiatic acid treatment increased PPARγ expression at both mRNA and protein levels, and promoted the translocation of GLUT4 to plasma membrane after MI/R insult. However, the effects mediated by asiatic acid on glycometabolism and GLUT4 translocation were reversed by the administration of LY294002, the Akt inhibitor. Conclusion These findings demonstrated that asiatic acid exerts beneficial effects on MI/R injury in rats. This protection may be related to the modulation of glycometabolism via Akt-dependent GLUT4 translocation and PPARγ activation in ischemic cardiomyocyte.
Collapse
Affiliation(s)
- Yang Dai
- Institute of Translational Medicine, Nanchang University, Nanchang 330031, China, ;
| | - Ziwei Wang
- Institute of Translational Medicine, Nanchang University, Nanchang 330031, China, ;
| | - Minxue Quan
- Institute of Translational Medicine, Nanchang University, Nanchang 330031, China, ;
| | - Yanni Lv
- Department of Pharmacy, The First Affiliated Hospital of Nanchang University, Nanchang 330046, China
| | - Yunman Li
- Department of Physiology, China Pharmaceutical University, Nanjing 210009, China
| | - Hong-Bo Xin
- Institute of Translational Medicine, Nanchang University, Nanchang 330031, China, ;
| | - Yisong Qian
- Institute of Translational Medicine, Nanchang University, Nanchang 330031, China, ;
| |
Collapse
|
12
|
Yu S, Guo Y, Zhang W, Zheng L, Ren J, Jin J, Yu B, Zhang Y, Wang H, Zhang Y. [Effects of propofol pretreatment on myocardial cell apoptosis and SERCA2 expression in rats with hepatic ischemia/reperfusion]. Rev Bras Anestesiol 2018; 68:591-596. [PMID: 30195630 DOI: 10.1016/j.bjan.2018.06.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Revised: 06/03/2018] [Accepted: 06/15/2018] [Indexed: 11/30/2022] Open
Abstract
INTRODUCTION Hepatic ischemia-reperfusion injury is a common pathophysiological process in liver surgery. Whether Propofol can reduce myocardial ischemia-reperfusion injury induced by hepatic ischemia-reperfusion injury in rats, together with related mechanisms, still needs further studies. OBJECTIVE To investigate if propofol would protect the myocardial cells from apoptosis with hepatic ischemia-reperfusion injury. METHODS Male Sprague-Dawley rats (n=18) were randomly allocated into three groups: Sham Group (Group S, n=6), Hepatic Ischemia-reperfusion Injury Group (Group IR, n=6) and Propofol Group (Group P, n=6). Group S was only subjected to laparotomy. Group IR was attained by ischemia for 30min and reperfusion for 4h. Group P was subjected identical insult as in Group IR with the administration of propofol started 10min before ischemia with 120mg.kg-1, following by continuous infusion at 20mg.kg-1.h-1. Cell apoptosis was examined by terminal deoxynucleotidyl transferase-mediated dUTP-biotin nick end labeling assay. Endoplasmic reticulum Ca2+-ATPase2 (SERCA2) and cysteine-containing aspartic acid cleaved-caspase3 (cleaved-caspase3) were assayed by western blot and Altimeter polymerase chain reaction. RESULTS Apoptosis rate was increased, with mRNA and protein of SERCA2 down-regulated and cleaved-caspase3 up-regulated in Group IR compared with Group S (p<0.01). Apoptosis rate was decreased, with mRNA and protein of SERCA2 up-regulated and cleaved-caspase3 down-regulated in Group P compared with Group IR (p<0.01). CONCLUSIONS Propofol can reduce hepatic ischemia-reperfusion injury-induced myocardial cell apoptosis, meanwhile, can up-regulate mRNA and protein of SERCA2 in rats.
Collapse
Affiliation(s)
- Shuzhen Yu
- Shanxi Provincial People's Hospital, Department of Anesthesiology, Taiyuan, China
| | - Yongqing Guo
- Shanxi Provincial People's Hospital, Department of Anesthesiology, Taiyuan, China.
| | - Weiwei Zhang
- Shanxi Provincial People's Hospital, Department of Anesthesiology, Taiyuan, China
| | - Lina Zheng
- Shanxi Provincial People's Hospital, Department of Anesthesiology, Taiyuan, China
| | - Junming Ren
- Shanxi Medical University, Department of Biochemistry, Taiyuan, China
| | - Jianmin Jin
- Shanxi Provincial People's Hospital, Department of Anesthesiology, Taiyuan, China
| | - Baofeng Yu
- Shanxi Medical University, Department of Biochemistry, Taiyuan, China
| | - Yu Zhang
- Shanxi People's Hospital, Department of General Surgery, Taiyuan, China
| | - Hao Wang
- Shanxi People's Hospital, Department of General Surgery, Taiyuan, China
| | - Yuhong Zhang
- Shanxi People's Hospital, Department of General Surgery, Taiyuan, China
| |
Collapse
|
13
|
Fang Y, Zhao Y, He S, Guo T, Song Q, Guo N, Yuan Z. Overexpression of FGF19 alleviates hypoxia/reoxygenation-induced injury of cardiomyocytes by regulating GSK-3β/Nrf2/ARE signaling. Biochem Biophys Res Commun 2018; 503:2355-2362. [DOI: 10.1016/j.bbrc.2018.06.161] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Accepted: 06/28/2018] [Indexed: 10/28/2022]
|
14
|
Zhang W, Hou X, Huang M, Zeng X, He X, Liao Y. TDCPP protects cardiomyocytes from H2O2-induced injuries via activating PI3K/Akt/GSK3β signaling pathway. Mol Cell Biochem 2018; 453:53-64. [DOI: 10.1007/s11010-018-3431-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Accepted: 08/16/2018] [Indexed: 10/28/2022]
|
15
|
Aguiar RRDE, Vale DF, Silva RMDA, Muniz YP, Antunes F, Logullo C, Oliveira ALA, Almeida AJDE. A possible relationship between gluconeogenesis and glycogen metabolism in rabbits during myocardial ischemia. AN ACAD BRAS CIENC 2017; 89:1683-1690. [PMID: 28876386 DOI: 10.1590/0001-3765201720160773] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Accepted: 03/24/2017] [Indexed: 11/21/2022] Open
Abstract
Ischemia is responsible for many metabolic abnormalities in the heart, causing changes in organ function. One of modifications occurring in the ischemic cell is changing from aerobic to anaerobic metabolism. This change causes the predominance of the use of carbohydrates as an energy substrate instead of lipids. In this case, the glycogen is essential to the maintenance of heart energy intake, being an important reserve to resist the stress caused by hypoxia, using glycolysis and lactic acid fermentation. In order to study the glucose anaerobic pathways utilization and understand the metabolic adaptations, New Zealand white rabbits were subjected to ischemia caused by Inflow occlusion technique. The animals were monitored during surgery by pH and lactate levels. Transcription analysis of the pyruvate kinase, lactate dehydrogenase and phosphoenolpyruvate carboxykinase enzymes were performed by qRT-PCR, and glycogen quantification was determined enzymatically. Pyruvate kinase transcription increased during ischemia, followed by glycogen consumption content. The gluconeogenesis increased in control and ischemia moments, suggesting a relationship between gluconeogenesis and glycogen metabolism. This result shows the significant contribution of these substrates in the organ energy supply and demonstrates the capacity of the heart to adapt the metabolism after this injury, sustaining the homeostasis during short-term myocardial ischemia.
Collapse
Affiliation(s)
- Raquel R DE Aguiar
- Universidade Estadual do Norte Fluminense Darcy Ribeiro (UENF), Av. Alberto Lamego, 2000, Parque Califórnia, 28013-602 Campos dos Goytacazes, RJ, Brazil
| | - Daniela F Vale
- Laboratório de Clínica e Cirurgia Animal/CCTA and Unidade de Experimentação Animal, Universidade Estadual do Norte Fluminense Darcy Ribeiro/UENF, Av. Alberto Lamego, 2000, Parque Califórnia, 28013-602 Campos dos Goytacazes, RJ, Brazil
| | - Renato M DA Silva
- Laboratório de Química e Função de Proteínas e Peptídeos (CBB) e Unidade de Experimentação Animal, Universidade Estadual do Norte Fluminense Darcy Ribeiro/UENF, Av. Alberto Lamego, 2000, Parque Califórnia, 28013-602 Campos dos Goytacazes, RJ, Brazil
| | - Yolanda P Muniz
- Universidade Estadual do Norte Fluminense Darcy Ribeiro (UENF), Av. Alberto Lamego, 2000, Parque Califórnia, 28013-602 Campos dos Goytacazes, RJ, Brazil
| | - Fernanda Antunes
- Laboratório de Clínica e Cirurgia Animal/CCTA and Unidade de Experimentação Animal, Universidade Estadual do Norte Fluminense Darcy Ribeiro/UENF, Av. Alberto Lamego, 2000, Parque Califórnia, 28013-602 Campos dos Goytacazes, RJ, Brazil
| | - Carlos Logullo
- Laboratório de Química e Função de Proteínas e Peptídeos (CBB) e Unidade de Experimentação Animal, Universidade Estadual do Norte Fluminense Darcy Ribeiro/UENF, Av. Alberto Lamego, 2000, Parque Califórnia, 28013-602 Campos dos Goytacazes, RJ, Brazil
| | - André L A Oliveira
- Laboratório de Clínica e Cirurgia Animal/CCTA and Unidade de Experimentação Animal, Universidade Estadual do Norte Fluminense Darcy Ribeiro/UENF, Av. Alberto Lamego, 2000, Parque Califórnia, 28013-602 Campos dos Goytacazes, RJ, Brazil
| | - Adriana J DE Almeida
- Laboratório de Clínica e Cirurgia Animal/CCTA and Unidade de Experimentação Animal, Universidade Estadual do Norte Fluminense Darcy Ribeiro/UENF, Av. Alberto Lamego, 2000, Parque Califórnia, 28013-602 Campos dos Goytacazes, RJ, Brazil
| |
Collapse
|
16
|
Duan J, Guan Y, Mu F, Guo C, Zhang E, Yin Y, Wei G, Zhu Y, Cui J, Cao J, Weng Y, Wang Y, Xi M, Wen A. Protective effect of butin against ischemia/reperfusion-induced myocardial injury in diabetic mice: involvement of the AMPK/GSK-3β/Nrf2 signaling pathway. Sci Rep 2017; 7:41491. [PMID: 28128361 PMCID: PMC5269748 DOI: 10.1038/srep41491] [Citation(s) in RCA: 93] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Accepted: 12/21/2016] [Indexed: 12/30/2022] Open
Abstract
Hyperglycemia-induced reactive oxygen species (ROS) generation contributes to development of diabetic cardiomyopathy (DCM). This study was designed to determine the effect of an antioxidant butin (BUT) on ischemia/reperfusion-induced myocardial injury in diabetic mice. Myocardial ischemia/reperfusion (MI/R) was induced in C57/BL6J diabetes mice. Infarct size and cardiac function were detected. For in vitro study, H9c2 cells were used. To clarify the mechanisms, proteases inhibitors or siRNA were used. Proteins levels were investigated by Western blotting. In diabetes MI/R model, BUT significantly alleviated myocardial infarction and improved heart function, together with prevented diabetes-induced cardiac oxidative damage. The expression of Nrf2, AMPK, AKT and GSK-3β were significantly increased by BUT. Furthermore, in cultured H9c2 cardiac cells silencing Nrf2 gene with its siRNA abolished the BUT's prevention of I/R-induced myocardial injury. Inhibition of AMPK and AKT signaling by relative inhibitor or specific siRNA decreased the level of BUT-induced Nrf2 expression, and diminished the protective effects of BUT. The interplay relationship between GSK-3β and Nrf2 was also verified with relative overexpression and inhibitors. Our findings indicated that BUT protected against I/R-induced ROS-mediated apoptosis by upregulating the AMPK/Akt/GSK-3β pathway, which further activated Nrf2-regulated antioxidant enzymes in diabetic cardiomyocytes exposed to I/R.
Collapse
Affiliation(s)
- Jialin Duan
- Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi’an, 710032, China
- College of Pharmacy, Shaanxi University of Chinese Medicine, XianYang 712083, PR China
| | - Yue Guan
- Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi’an, 710032, China
| | - Fei Mu
- Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi’an, 710032, China
| | - Chao Guo
- Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi’an, 710032, China
| | - Enhu Zhang
- College of Pharmacy, Shaanxi University of Chinese Medicine, XianYang 712083, PR China
| | - Ying Yin
- Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi’an, 710032, China
| | - Guo Wei
- Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi’an, 710032, China
| | - Yanrong Zhu
- Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi’an, 710032, China
| | - Jia Cui
- Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi’an, 710032, China
| | - Jinyi Cao
- Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi’an, 710032, China
| | - Yan Weng
- Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi’an, 710032, China
| | - Yanhua Wang
- Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi’an, 710032, China
| | - Miaomiao Xi
- Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi’an, 710032, China
| | - Aidong Wen
- Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi’an, 710032, China
| |
Collapse
|
17
|
GSK-3β promotes PA-induced apoptosis through changing β-arrestin 2 nucleus location in H9c2 cardiomyocytes. Apoptosis 2016; 21:1045-55. [DOI: 10.1007/s10495-016-1272-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
|
18
|
Suchal K, Bhatia J, Malik S, Malhotra RK, Gamad N, Goyal S, Nag TC, Arya DS, Ojha S. Seabuckthorn Pulp Oil Protects against Myocardial Ischemia-Reperfusion Injury in Rats through Activation of Akt/eNOS. Front Pharmacol 2016; 7:155. [PMID: 27445803 PMCID: PMC4925700 DOI: 10.3389/fphar.2016.00155] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Accepted: 05/30/2016] [Indexed: 12/21/2022] Open
Abstract
Seabuckthorn (SBT) pulp oil obtained from the fruits of seabuckthorn [Hippophae rhamnoides L. (Elaeagnaceae)] has been used traditionally for its medicinal and nutritional properties. However, its role in ischemia-reperfusion (IR) injury of myocardium in rats has not been elucidated so far. The present study reports the cardioprotective effect of SBT pulp oil in IR-induced model of myocardial infarction in rats and underlying mechanism mediating activation of Akt/eNOS signaling pathway. Male albino Wistar rats were orally administered SBT pulp oil (5, 10, and 20 ml/kg/day) or saline for 30 days. On the day 31, ischemia was induced by one-stage ligation of left anterior descending coronary artery for 45 min followed by reperfusion for 60 min. SBT pulp oil pretreatment at the dose of 20 ml/kg observed to stabilize cardiac function and myocardial antioxidants such as glutathione, superoxide dismutase, catalase, and inhibited lipid peroxidation evidenced by reduced malondialdehyde levels as compared to IR-control group. SBT pulp oil also improved hemodynamic and contractile function and decreased tumor necrosis factor and activities of myocyte injury marker enzymes; lactate dehydrogenase and creatine kinase-MB. Additionally, a remarkable rise in expression of pAkt-eNOS, Bcl-2 and decline in expression of IKKβ/NF-κB and Bax was observed in the myocardium. The histopathological and ultrastructural salvage of cardiomyocytes further supports the cardioprotective effect of SBT pulp oil. Based on findings, it can be concluded that SBT pulp oil protects against myocardial IR injury mediating favorable modulation of Akt-eNOS and IKKβ/NF-κB expression.
Collapse
Affiliation(s)
- Kapil Suchal
- Cardiovascular Research Laboratory, Department of Pharmacology, All India Institute of Medical Sciences New Delhi, India
| | - Jagriti Bhatia
- Cardiovascular Research Laboratory, Department of Pharmacology, All India Institute of Medical Sciences New Delhi, India
| | - Salma Malik
- Cardiovascular Research Laboratory, Department of Pharmacology, All India Institute of Medical Sciences New Delhi, India
| | - Rajiv Kumar Malhotra
- Cardiovascular Research Laboratory, Department of Pharmacology, All India Institute of Medical Sciences New Delhi, India
| | - Nanda Gamad
- Cardiovascular Research Laboratory, Department of Pharmacology, All India Institute of Medical Sciences New Delhi, India
| | - Sameer Goyal
- Department of Pharmacology, R. C. Patel Institute of Pharmaceutical Education and Research Shirpur, India
| | - Tapas C Nag
- Department of Anatomy, All India Institute of Medical Sciences New Delhi, India
| | - Dharamvir S Arya
- Cardiovascular Research Laboratory, Department of Pharmacology, All India Institute of Medical Sciences New Delhi, India
| | - Shreesh Ojha
- Department of Pharmacology and Therapeutics, College of Medicine and Health Sciences, United Arab Emirates University Abu Dhabi, UAE
| |
Collapse
|
19
|
Masoud WGT, Abo Al-Rob O, Yang Y, Lopaschuk GD, Clanachan AS. Tolerance to ischaemic injury in remodelled mouse hearts: less ischaemic glycogenolysis and preserved metabolic efficiency. Cardiovasc Res 2015; 107:499-508. [PMID: 26150203 DOI: 10.1093/cvr/cvv195] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2014] [Accepted: 06/11/2015] [Indexed: 11/13/2022] Open
Abstract
AIMS Post-infarction remodelled failing hearts have reduced metabolic efficiency. Paradoxically, they have increased tolerance to further ischaemic injury. This study was designed to investigate the metabolic mechanisms that may contribute to this phenomenon and to examine the relationship between ischaemic tolerance and metabolic efficiency during post-ischaemic reperfusion. METHODS AND RESULTS Male C57BL/6 mice were subjected to coronary artery ligation (CAL) or SHAM surgery. After 4 weeks, in vivo mechanical function was assessed by echocardiography, and then isolated working hearts were perfused in this sequence: 45 min aerobic, 15 min global no-flow ischaemia, and 30 min aerobic reperfusion. Left ventricular (LV) function, metabolic rates, and metabolic efficiency were measured. Relative to SHAM, both in vivo and in vitro CAL hearts had depressed cardiac function under aerobic conditions (45 and 36%, respectively), but they had a greater recovery of LV function during post-ischaemic reperfusion (67 vs. 49%, P < 0.05). While metabolic efficiency (LV work per ATP produced) was 50% lower during reperfusion of SHAM hearts, metabolic efficiency in CAL hearts did not decrease. During ischaemia, glycogenolysis was 28% lower in CAL hearts, indicative of lower ischaemic proton production. There were no differences in mitochondrial abundance, calcium handling proteins, or key metabolic enzymes. CONCLUSION Compared with SHAM, remodelled CAL hearts are more tolerant to ischaemic injury and undergo no further deterioration of metabolic efficiency during reperfusion. Less glycogen utilization in CAL hearts during ischaemia may contribute to increased ischaemic tolerance by limiting ischaemic proton production that may improve ion homeostasis during early reperfusion.
Collapse
Affiliation(s)
- Waleed G T Masoud
- Department of Pharmacology, Faculty of Medicine and Dentistry, University of Alberta, 9-43 Medical Sciences Building, Edmonton, Alberta, Canada T6G 2H7 Mazankowski Alberta Heart Institute, Edmonton, Alberta, Canada Cardiovascular Research Centre, Alberta, Canada Department of Pediatrics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada Department of Pharmacology, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Osama Abo Al-Rob
- Mazankowski Alberta Heart Institute, Edmonton, Alberta, Canada Cardiovascular Research Centre, Alberta, Canada Department of Pediatrics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada Faculty of Pharmacy, Yarmouk University, Irbid, Jordan
| | - Yang Yang
- Department of Pharmacology, Faculty of Medicine and Dentistry, University of Alberta, 9-43 Medical Sciences Building, Edmonton, Alberta, Canada T6G 2H7
| | - Gary D Lopaschuk
- Department of Pharmacology, Faculty of Medicine and Dentistry, University of Alberta, 9-43 Medical Sciences Building, Edmonton, Alberta, Canada T6G 2H7 Mazankowski Alberta Heart Institute, Edmonton, Alberta, Canada Cardiovascular Research Centre, Alberta, Canada Department of Pediatrics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | - Alexander S Clanachan
- Department of Pharmacology, Faculty of Medicine and Dentistry, University of Alberta, 9-43 Medical Sciences Building, Edmonton, Alberta, Canada T6G 2H7 Mazankowski Alberta Heart Institute, Edmonton, Alberta, Canada Cardiovascular Research Centre, Alberta, Canada
| |
Collapse
|
20
|
Huang CH, Chiang CY, Pen RH, Tsai MS, Chen HW, Hsu CY, Wang TD, Ma MHM, Chen SC, Chen WJ. Hypothermia treatment preserves mitochondrial integrity and viability of cardiomyocytes after ischaemic reperfusion injury. Injury 2015; 46:233-9. [PMID: 25467711 DOI: 10.1016/j.injury.2014.10.055] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2014] [Accepted: 10/22/2014] [Indexed: 02/02/2023]
Abstract
BACKGROUND Haemorrhagic shock after traumatic injury carries a high mortality. Therapeutic hypothermia has been widely used in critical illness to improve the outcome in haemorrhagic shock by activation of cardiac pro-survival signalling pathways. However, the role played by the mitochondria in the cardioprotective effects of therapeutic hypothermia remains unclear. We investigated the effects of therapeutic hypothermia on mitochondrial function and integrity after haemorrhagic shock using an in vitro ischaemia-reperfusion model. METHODS H9c2 cardiomyocytes received a simulated ischaemic reperfusion injury under normothermic (37 °C) and hypothermic (31 °C) conditions. The cardiomyocytes were treated with hypoxic condition for 18 h in serum-free, glucose-free culture medium at pH 6.9 and then shifted to re-oxygenation status for 6h in serum-containing cell culture medium at pH 7.4. Cellular survival, mitochondrial integrity, energy metabolism and calcium homeostasis were studied. RESULTS Hypothermia treatment lessened cell death (15.0 ± 12.7 vs. 31.9 ± 11.8%, P=0.025) and preserved mitochondrial number (81.3 ± 17.4 vs. 45.2 ± 6.6, P=0.03) against simulated ischaemic reperfusion injury. Hypothermia treatment ameliorated calcium overload in the intracellular (1.5 ± 0.2 vs. 9.5 ± 2.8, P<0.001) and intra-mitochondrial (1.0 ± 0.3 vs. 1.6 ± 0.3, P=0.014) compartments against the injury. Mitochondrial integrity was more preserved by hypothermia treatment (50.1 ± 26.6 vs. 14.8 ± 13.0%, P<0.01) after the injury. Mitochondrial ATP concentrations were maintained with hypothermia treatment after injury (16.7 ± 9.5 vs. 6.1 ± 5.1 μM, P<0.01). CONCLUSIONS Hypothermia treatment at 31 °C can ameliorate cardiomyocyte damage caused by simulated ischaemic reperfusion injuries. Mitochondrial calcium homeostasis, energy metabolism, and membrane integrity are preserved and play critical roles during therapeutic hypothermia treatment.
Collapse
Affiliation(s)
- Chien-Hua Huang
- Department of Emergency Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan.
| | - Chih-Yen Chiang
- Division of Cardiology, Department of Internal Medicine, Cardinal Tien Hospital Yonghe Branch, New Taipei City, Taiwan.
| | - Ren-How Pen
- Institute of Pharmacology, National Yang-Ming University, Taipei, Taiwan.
| | - Min-Shan Tsai
- Department of Emergency Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan.
| | - Huei-Wen Chen
- Graduate Institute of Toxicology, College of Medicine, National Taiwan University, Taipei, Taiwan.
| | - Chiung-Yuan Hsu
- Department of Emergency Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan.
| | - Tzung-Dau Wang
- Department of Internal Medicine (Cardiology), College of Medicine, National Taiwan University, Taipei, Taiwan.
| | - Matthew Huei-Ming Ma
- Department of Emergency Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan.
| | - Shyr-Chyr Chen
- Department of Emergency Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan.
| | - Wen-Jone Chen
- Department of Emergency Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan; Department of Internal Medicine, Lotung Poh-Ai Hospital, Yilan County, Taiwan.
| |
Collapse
|
21
|
Hsieh SR, Cheng WC, Su YM, Chiu CH, Liou YM. Molecular targets for anti-oxidative protection of green tea polyphenols against myocardial ischemic injury. Biomedicine (Taipei) 2014; 4:23. [PMID: 25520936 PMCID: PMC4264984 DOI: 10.7603/s40681-014-0023-0] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2014] [Accepted: 10/14/2014] [Indexed: 12/20/2022] Open
Abstract
Ischemic heart disease is the leading cause of death worldwide. An improved understanding of the mechanisms involved in myocardial injury would allow intervention downstream in the pathway where certain drugs including natural products could be efficiently applied to target the end effectors of the cell death pathway. Green tea polyphenols (GTPs) have potent anti-oxidative capabilities, which may account for their beneficial effects in preventing oxidative stress associated with ischemia injury. Although studies have provided convincing evidence to support the protective effects of GTPs in cardiovascular system, the potential end effectors that mediate cardiac protection are only beginning to be addressed. Proteomics analyses widely used to identify the protein targets for many cardiovascular diseases have advanced the discovery of the signaling mechanism for GTPs-mediated cardio-protection. This review focuses on putative triggers, mediators, and end effectors for the GTPs-mediated cardio-protection signaling pathways engaged in myocardial ischemia crisis, allowing a promising natural product to be used for ameliorating oxidative stress associated with ischemic heart diseases.
Collapse
Affiliation(s)
- Shih-Rong Hsieh
- Department of Cardiovascular Surgery, Taichung Veterans General Hospital, 407 Taichung, Taiwan
| | - Wei-Chen Cheng
- Institute of Bioinformatics and Structural Biology, National Tsing Hua University, 300 Hsinchu, Taiwan
| | - Yi-Min Su
- Department of Life Sciences, National Chung-Hsing University, 402 No. 250, Kuokang Road, Taichung, Taiwan
| | - Chun-Hwei Chiu
- Department of Life Sciences, National Chung-Hsing University, 402 No. 250, Kuokang Road, Taichung, Taiwan
| | - Ying-Ming Liou
- Department of Life Sciences, National Chung-Hsing University, 402 No. 250, Kuokang Road, Taichung, Taiwan
- Rong Hsing Research Center for Translational Medicine, National Chung Hsing University, 402 Taichung, Taiwan
| |
Collapse
|
22
|
Virag JAI, Lust RM. Circadian influences on myocardial infarction. Front Physiol 2014; 5:422. [PMID: 25400588 PMCID: PMC4214187 DOI: 10.3389/fphys.2014.00422] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2014] [Accepted: 10/12/2014] [Indexed: 11/13/2022] Open
Abstract
Components of circadian rhythm maintenance, or "clock genes," are endogenous entrainable oscillations of about 24 h that regulate biological processes and are found in the suprachaismatic nucleus (SCN) and many peripheral tissues, including the heart. They are influenced by external cues, or Zeitgebers, such as light and heat, and can influence such diverse phenomena as cytokine expression immune cells, metabolic activity of cardiac myocytes, and vasodilator regulation by vascular endothelial cells. While it is known that the central master clock in the SCN synchronizes peripheral physiologic rhythms, the mechanisms by which the information is transmitted are complex and may include hormonal, metabolic, and neuronal inputs. Whether circadian patterns are causally related to the observed periodicity of events, or whether they are simply epi-phenomena is not well established, but a few studies suggest that the circadian effects likely are real in their impact on myocardial infarct incidence. Cycle disturbances may be harbingers of predisposition and subsequent response to acute and chronic cardiac injury, and identifying the complex interactions of circadian rhythms and myocardial infarction may provide insights into possible preventative and therapeutic strategies for susceptible populations.
Collapse
Affiliation(s)
- Jitka A I Virag
- Department of Physiology, Brody School of Medicine, East Carolina University Greenville, NC, USA
| | - Robert M Lust
- Department of Physiology, Brody School of Medicine, East Carolina University Greenville, NC, USA
| |
Collapse
|
23
|
Shi L, Xu H, Wei J, Ma X, Zhang J. Caffeine induces cardiomyocyte hypertrophy via p300 and CaMKII pathways. Chem Biol Interact 2014; 221:35-41. [DOI: 10.1016/j.cbi.2014.07.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2014] [Revised: 07/20/2014] [Accepted: 07/25/2014] [Indexed: 01/05/2023]
|
24
|
Chen WC, Hsieh SR, Chiu CH, Hsu BD, Liou YM. Molecular identification for epigallocatechin-3-gallate-mediated antioxidant intervention on the H2O2-induced oxidative stress in H9c2 rat cardiomyoblasts. J Biomed Sci 2014; 21:56. [PMID: 24913014 PMCID: PMC4070642 DOI: 10.1186/1423-0127-21-56] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2014] [Accepted: 06/03/2014] [Indexed: 11/10/2022] Open
Abstract
Background Epigallocatechin-3-gallate (EGCG) has been documented for its beneficial effects protecting oxidative stress to cardiac cells. Previously, we have shown the EGCG-mediated cardiac protection by attenuating reactive oxygen species and cytosolic Ca2+ in cardiac cells during oxidative stress and myocardial ischemia. Here, we aimed to seek a deeper elucidation of the molecular anti-oxidative capabilities of EGCG in an H2O2-induced oxidative stress model of myocardial ischemia injury using H9c2 rat cardiomyoblasts. Results Proteomics analysis was used to determine the differential expression of proteins in H9c2 cells cultured in the conditions of control, 400 μM H2O2 exposure for 30 min with and/or without 10 to 20 μM EGCG pre-treatment. In this model, eight proteins associated with energy metabolism, mitochondrial electron transfer, redox regulation, signal transduction, and RNA binding were identified to take part in EGCG-ameliorating H2O2-induced injury in H9c2 cells. H2O2 exposure increased oxidative stress evidenced by increases in reactive oxygen species and cytosolic Ca2+ overload, increases in glycolytic protein, α-enolase, decreases in antioxidant protein, peroxiredoxin-4, as well as decreases in mitochondrial proteins, including aldehyde dehydrogenase-2, ornithine aminotransferase, and succinate dehydrogenase ubiquinone flavoprotein subunit. All of these effects were reversed by EGCG pre-treatment. In addition, EGCG attenuated the H2O2-induced increases of Type II inositol 3, 4-bisphosphate 4-phosphatase and relieved its subsequent inhibition of the downstream signalling for Akt and glycogen synthase kinase-3β (GSK-3β)/cyclin D1 in H9c2 cells. Pre-treatment with EGCG or GSK-3β inhibitor (SB 216763) significantly improved the H2O2-induced suppression on cell viability, phosphorylation of pAkt (S473) and pGSK-3β (S9), and level of cyclin D1 in cells. Conclusions Collectively, these findings suggest that EGCG blunts the H2O2-induced oxidative effect on the Akt activity through the modulation of PIP3 synthesis leading to the subsequent inactivation of GSK-3β mediated cardiac cell injury.
Collapse
Affiliation(s)
| | | | | | - Ban-Dar Hsu
- Institute of Bioinformatics and Structural Biology, National Tsing Hua University, Hsinchu 30013, Taiwan.
| | | |
Collapse
|
25
|
Hsieh SR, Hsu CS, Lu CH, Chen WC, Chiu CH, Liou YM. Epigallocatechin-3-gallate-mediated cardioprotection by Akt/GSK-3β/caveolin signalling in H9c2 rat cardiomyoblasts. J Biomed Sci 2013; 20:86. [PMID: 24251870 PMCID: PMC3871020 DOI: 10.1186/1423-0127-20-86] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2013] [Accepted: 11/18/2013] [Indexed: 12/30/2022] Open
Abstract
Background Epigallocatechin-3-gallate (EGCg) with its potent anti-oxidative capabilities is known for its beneficial effects ameliorating oxidative injury to cardiac cells. Although studies have provided convincing evidence to support the cardioprotective effects of EGCg, it remains unclear whether EGCg affect trans-membrane signalling in cardiac cells. Here, we have demonstrated the potential mechanism for cardioprotection of EGCg against H2O2-induced oxidative stress in H9c2 cardiomyoblasts. Results Exposing H9c2 cells to H2O2 suppressed cell viability and altered the expression of adherens and gap junction proteins with increased levels of intracellular reactive oxygen species and cytosolic Ca2+. These detrimental effects were attenuated by pre-treating cells with EGCg for 30 min. EGCg also attenuated H2O2-mediated cell cycle arrest at the G1-S phase through the glycogen synthase kinase-3β (GSK-3β)/β-catenin/cyclin D1 signalling pathway. To determine how EGCg targets H9c2 cells, enhanced green fluorescence protein (EGFP) was ectopically expressed in these cells. EGFP-emission fluorescence spectroscopy revealed that EGCg induced dose-dependent fluorescence changes in EGFP expressing cells, suggesting that EGCg signalling events might trigger proximity changes of EGFP expressed in these cells. Proteomics studies showed that EGFP formed complexes with the 67 kD laminin receptor, caveolin-1 and -3, β-actin, myosin 9, vimentin in EGFP expressing cells. Using in vitro oxidative stress and in vivo myocardial ischemia models, we also demonstrated the involvement of caveolin in EGCg-mediated cardioprotection. In addition, EGCg-mediated caveolin-1 activation was found to be modulated by Akt/GSK-3β signalling in H2O2-induced H9c2 cell injury. Conclusions Our data suggest that caveolin serves as a membrane raft that may help mediate cardioprotective EGCg transmembrane signalling.
Collapse
Affiliation(s)
| | | | | | | | | | - Ying-Ming Liou
- Department of Life Sciences, National Chung-Hsing University, Taichung 402, Taiwan.
| |
Collapse
|
26
|
Flepisi TB, Lochner A, Huisamen B. The Consequences of Long-Term Glycogen Synthase Kinase-3 Inhibition on Normal and Insulin Resistant Rat Hearts. Cardiovasc Drugs Ther 2013; 27:381-92. [DOI: 10.1007/s10557-013-6467-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
27
|
Zhabyeyev P, Gandhi M, Mori J, Basu R, Kassiri Z, Clanachan A, Lopaschuk GD, Oudit GY. Pressure-overload-induced heart failure induces a selective reduction in glucose oxidation at physiological afterload. Cardiovasc Res 2012; 97:676-85. [PMID: 23257023 DOI: 10.1093/cvr/cvs424] [Citation(s) in RCA: 101] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
AIMS Development of heart failure is known to be associated with changes in energy substrate metabolism. Information on the changes in energy substrate metabolism that occur in heart failure is limited and results vary depending on the methods employed. Our aim is to characterize the changes in energy substrate metabolism associated with pressure overload and ischaemia-reperfusion (I/R) injury. METHODS AND RESULTS We used transverse aortic constriction (TAC) in mice to induce pressure overload-induced heart failure. Metabolic rates were measured in isolated working hearts perfused at physiological afterload (80 mmHg) using (3)H- or (14)C-labelled substrates. As a result of pressure-overload injury, murine hearts exhibited: (i) hypertrophy, systolic, and diastolic dysfunctions; (ii) reduction in LV work, (iii) reduced rates of glucose and lactate oxidations, with no change in glycolysis or fatty acid oxidation and a small decrease in triacylglycerol oxidation, and (iv) increased phosphorylation of AMPK and a reduction in malonyl-CoA levels. Sham hearts produced more acetyl CoA from carbohydrates than from fats, whereas TAC hearts showed a reverse trend. I/R in sham group produced a metabolic switch analogous to the TAC-induced shift to fatty acid oxidation, whereas I/R in TAC hearts greatly exacerbated the existing imbalance, and was associated with a poorer recovery during reperfusion. CONCLUSIONS Pressure overload-induced heart failure and I/R shift the preference of substrate oxidation from glucose and lactate to fatty acid due to a selective reduction in carbohydrate oxidation. Normalizing the balance between metabolic substrate utilization may alleviate pressure-overload-induced heart failure and ischaemia.
Collapse
Affiliation(s)
- Pavel Zhabyeyev
- Division of Cardiology, Department of Medicine, University of Alberta, 8440 112 Street NW, Edmonton, AB, Canada T6G 2B7
| | | | | | | | | | | | | | | |
Collapse
|
28
|
Abstract
An increasing body of clinical observations and experimental evidence suggests that cardiac dysfunction results from autonomic dysregulation of the contractile output of the heart. Excessive activation of the sympathetic nervous system and a decrease in parasympathetic tone are associated with increased mortality. Elevated levels of circulating catecholamines closely correlate with the severity and poor prognosis in heart failure. Sympathetic over-stimulation causes increased levels of catecholamines, which induce excessive aerobic metabolism leading to excessive cardiac oxygen consumption. Resulting impaired mitochondrial function causes acidosis, which results in reduction in blood flow by impairment of contractility. To the extent that the excessive aerobic metabolism resulting from adrenergic stimulation comes to a halt the energy deficit has to be compensated for by anaerobic metabolism. Glucose and glycogen become the essential nutrients. Beta-adrenergic blockade is used successfully to decrease hyperadrenergic drive. Neurohumoral antagonists block adrenergic over-stimulation but do not provide the heart with fuel for compensatory anaerobic metabolism. The endogenous hormone ouabain reduces catecholamine levels in healthy volunteers, promotes the secretion of insulin, induces release of acetylcholine from synaptosomes and potentiates the stimulation of glucose metabolism by insulin and acetylcholine. Ouabain stimulates glycogen synthesis and increases lactate utilisation by the myocardium. Decades of clinical experience with ouabain confirm the cardioprotective effects of this endogenous hormone. The so far neglected sympatholytic and vagotonic effects of ouabain on myocardial metabolism clearly make a clinical re-evaluation of this endogenous hormone necessary. Clinical studies with ouabain that correspond to current standards are warranted.
Collapse
|
29
|
Adenosine-mediated inhibition of 5'-AMP-activated protein kinase and p38 mitogen-activated protein kinase during reperfusion enhances recovery of left ventricular mechanical function. J Mol Cell Cardiol 2012; 52:1308-18. [PMID: 22484620 DOI: 10.1016/j.yjmcc.2012.03.014] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2012] [Accepted: 03/21/2012] [Indexed: 11/24/2022]
Abstract
Attenuation of excessive rates of myocardial glycolysis limits proton production and Ca(2+) overload during reperfusion and improves recovery of post-ischemic left ventricular (LV) function. In order to elucidate mechanisms underlying glycolytic inhibition by adenosine (ADO), this study tested the hypothesis that the beneficial effects of ADO are due to Ser/Thr protein phosphatase (PP)-mediated inhibition of 5'-AMP-activated protein kinase (AMPK) and phosphofructokinase-2 (PFK-2). In isolated perfused working rat hearts subjected to global ischemia (GI) and reperfusion, ADO (500μmol/l), added 5min prior to the onset of GI and present throughout reperfusion, inhibits glycolysis and proton production during reperfusion and improves post-ischemic LV work. These metabolic effects of ADO are also evident during aerobic perfusion. Assays of glycolytic intermediates show that ADO-induced glycolytic inhibition occurs at the step catalyzed by PFK-1, an effect mediated by reduced activation of PFK-2 by AMPK. The PP1 and PP2A inhibitors, cantharidin (5μmol/l) or okadaic acid (0.1μmol/l), added 10min prior to ADO prevent ADO-induced inhibition of glycolysis and AMPK, as well as ADO-induced cardioprotection. ADO also inhibits p38 MAPK phosphorylation during reperfusion in a cantharidin-sensitive manner, and pharmacological inhibition of p38 MAPK (by SB202190, 10μmol/l) during reperfusion also reduces glycolysis and is cardioprotective. These results indicate that attenuation of glycolysis during reperfusion and cardioprotection can be achieved by inhibition of the stress kinases, AMPK and p38 MAPK.
Collapse
|
30
|
Akt/GSK-3β/eNOS phosphorylation arbitrates safranal-induced myocardial protection against ischemia–reperfusion injury in rats. Eur J Nutr 2011; 51:719-27. [DOI: 10.1007/s00394-011-0251-y] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2011] [Accepted: 09/21/2011] [Indexed: 10/17/2022]
|
31
|
Cai M, Huttinger ZM, He H, Zhang W, Li F, Goodman LA, Wheeler DG, Druhan LJ, Zweier JL, Dwyer KM, He G, d'Apice AJF, Robson SC, Cowan PJ, Gumina RJ. Transgenic over expression of ectonucleotide triphosphate diphosphohydrolase-1 protects against murine myocardial ischemic injury. J Mol Cell Cardiol 2011; 51:927-35. [PMID: 21939667 DOI: 10.1016/j.yjmcc.2011.09.003] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2011] [Revised: 08/23/2011] [Accepted: 09/03/2011] [Indexed: 02/06/2023]
Abstract
Modulation of purinergic signaling is critical to myocardial homeostasis. Ectonucleoside triphosphate diphosphohydrolase 1 (ENTPD-1; CD39) which converts the proinflammatory molecules ATP or ADP to AMP is a key regulator of purinergic modulation. However, the salutary effects of transgenic over expression of ENTPD-1 on myocardial response to ischemic injury have not been tested to date. Therefore we hypothesized that ENTPD-1 over expression affords myocardial protection from ischemia-reperfusion injury via specific cell signaling pathways. ENTPD-1 transgenic mice, which over express human ENTPDase-1, and wild-type (WT) littermates were subjected to either ex vivo or in vivo ischemia-reperfusion injury. Infarct size, inflammatory cell infiltrate and intracellular signaling molecule activation were evaluated. Infarct size was significantly reduced in ENTPD-1 versus WT hearts in both ex vivo and in vivo studies. Following ischemia-reperfusion injury, ENTPD-1 cardiac tissues demonstrated an increase in the phosphorylation of the cellular signaling molecule extracellular signal-regulated kinases 1/2 (ERK 1/2) and glycogen synthase kinase-3β (GSK-3β). Resistance to myocardial injury was abrogated by treatment with a non-selective adenosine receptor antagonist, 8-SPT or the more selective A(2B) adenosine receptor antagonist, MRS 1754, but not the A(1) selective antagonists, DPCPX. Additionally, treatment with the ERK 1/2 inhibitor PD98059 or the mitochondrial permeability transition pore opener, atractyloside, abrogated the cardiac protection provided by ENTPDase-1 expression. These results suggest that transgenic ENTPDase-1 expression preferentially conveys myocardial protection from ischemic injury via adenosine A(2B) receptor engagement and associated phosphorylation of the cellular protective signaling molecules, Akt, ERK 1/2 and GSK-3β that prevents detrimental opening of the mitochondrial permeability transition pore.
Collapse
Affiliation(s)
- Ming Cai
- Division of Cardiovascular Medicine and Davis Heart and Lung Research Institute, The Ohio State University, Columbus, OH, USA
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
32
|
McCarthy J, Lochner A, Opie LH, Sack MN, Essop MF. PKCε promotes cardiac mitochondrial and metabolic adaptation to chronic hypobaric hypoxia by GSK3β inhibition. J Cell Physiol 2011; 226:2457-68. [PMID: 21660969 PMCID: PMC3411281 DOI: 10.1002/jcp.22592] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
PKCε is central to cardioprotection. Sub-proteome analysis demonstrated co-localization of activated cardiac PKCε (aPKCε) with metabolic, mitochondrial, and cardioprotective modulators like hypoxia-inducible factor 1α (HIF-1α). aPKCε relocates to the mitochondrion, inactivating glycogen synthase kinase 3β (GSK3β) to modulate glycogen metabolism, hypertrophy and HIF-1α. However, there is no established mechanistic link between PKCε, p-GSK3β and HIF1-α. Here we hypothesized that cardiac-restricted aPKCε improves mitochondrial response to hypobaric hypoxia by altered substrate fuel selection via a GSK3β/HIF-1α-dependent mechanism. aPKCε and wild-type (WT) mice were exposed to 14 days of hypobaric hypoxia (45 kPa, 11% O(2)) and cardiac metabolism, functional parameters, p-GSK3β/HIF-1α expression, mitochondrial function and ultrastructure analyzed versus normoxic controls. Mitochondrial ADP-dependent respiration, ATP production and membrane potential were attenuated in hypoxic WT but maintained in hypoxic aPKCε mitochondria (P < 0.005, n = 8). Electron microscopy revealed a hypoxia-associated increase in mitochondrial number with ultrastructural disarray in WT versus aPKCε hearts. Concordantly, left ventricular work was diminished in hypoxic WT but not aPKCε mice (glucose only perfusions). However, addition of palmitate abrogated this (P < 0.05 vs. WT). aPKCε hearts displayed increased glucose utilization at baseline and with hypoxia. In parallel, p-GSK3β and HIF1-α peptide levels were increased in hypoxic aPKCε hearts versus WT. Our study demonstrates that modest, sustained PKCε activation blunts cardiac pathophysiologic responses usually observed in response to chronic hypoxia. Moreover, we propose that preferential glucose utilization by PKCε hearts is orchestrated by a p-GSK3β/HIF-1α-mediated mechanism, playing a crucial role to sustain contractile function in response to chronic hypobaric hypoxia.
Collapse
Affiliation(s)
- Joy McCarthy
- Hatter Institute for Cardiovascular Research, University of Cape Town Medical School, Cape Town, South Africa.
| | | | | | | | | |
Collapse
|
33
|
Lucchinetti E, Wang L, Ko KWS, Troxler H, Hersberger M, Zhang L, Omar MA, Lopaschuk GD, Clanachan AS, Zaugg M. Enhanced glucose uptake via GLUT4 fuels recovery from calcium overload after ischaemia-reperfusion injury in sevoflurane- but not propofol-treated hearts. Br J Anaesth 2011; 106:792-800. [PMID: 21474475 DOI: 10.1093/bja/aer065] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND So far, no study has explored the effects of sevoflurane, propofol, and Intralipid on metabolic flux rates of fatty acid oxidation (FOX) and glucose oxidation (GOX) in hearts exposed to ischaemia-reperfusion. METHODS Isolated paced working rat hearts were exposed to 20 min of ischaemia and 30 min of reperfusion. Peri-ischaemic sevoflurane (2 vol%) and propofol (100 µM) in the formulation of 1% Diprivan(®) were assessed for their effects on oxidative energy metabolism and intracellular diastolic and systolic Ca(2+) concentrations. Substrate flux was measured using [(3)H]palmitate and [(14)C]glucose and [Ca(2+)] using indo-1AM. Western blotting was used to determine the expression of the sarcolemmal glucose transporter GLUT4 in lipid rafts. Biochemical analyses of nucleotides, ceramides, and 32 acylcarnitines were also performed. RESULTS Sevoflurane, but not propofol, improved the recovery of left ventricular work (P=0.008) and myocardial efficiency (P=0.008) compared with untreated ischaemic hearts. This functional improvement was accompanied by reduced increases in post-ischaemic diastolic and systolic intracellular Ca(2+) concentrations (P=0.008). Sevoflurane, but not propofol, increased GOX (P=0.009) and decreased FOX (P=0.019) in hearts exposed to ischaemia-reperfusion. GLUT4 expression was markedly increased in lipid rafts of sevoflurane-treated hearts (P=0.016). Increased GOX closely correlated with reduced Ca(2+) overload. Intralipid alone decreased energy charge and increased long-chain and hydroxyacylcarnitine tissue levels, whereas sevoflurane decreased toxic ceramide formation. CONCLUSIONS Enhanced glucose uptake via GLUT4 fuels recovery from Ca(2+) overload after ischaemia-reperfusion in sevoflurane- but not propofol-treated hearts. The use of a high propofol concentration (100 µM) did not result in similar protection.
Collapse
Affiliation(s)
- E Lucchinetti
- Department of Anesthesiology and Pain Medicine, Cardiovascular Research Centre, Department of Pediatrics, Mazankowski Alberta Heart Institute, University of Alberta, Edmonton, Canada
| | | | | | | | | | | | | | | | | | | |
Collapse
|
34
|
Cheng H, Woodgett J, Maamari M, Force T. Targeting GSK-3 family members in the heart: a very sharp double-edged sword. J Mol Cell Cardiol 2010; 51:607-13. [PMID: 21163265 DOI: 10.1016/j.yjmcc.2010.11.020] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2010] [Revised: 11/26/2010] [Accepted: 11/30/2010] [Indexed: 12/13/2022]
Abstract
The GSK-3 family of serine/threonine kinases, which is comprised of two isoforms (α and β), was initially identified as a negative regulator of glycogen synthase, the rate limiting enzyme of glycogen synthesis [1,2]. In the 30 years since its initial discovery, the family has been reported to regulate a host of additional cellular processes and, consequently, disease states such as bipolar disorders, diabetes, inflammatory diseases, cancer, and neurodegenerative diseases including Alzheimer's Disease and Parkinson's Disease [3,4]. As a result, there has been intense interest on the part of the pharmaceutical industry in developing small molecule antagonists of GSK-3. Herein, we will review the roles played by GSK-3s in the heart, focusing primarily on recent studies that have employed global and tissue-specific gene deletion. We will highlight roles in various pathologic processes, including pressure overload and ischemic injury, focusing on some striking isoform-specific effects of the family. Due to space limitations and/or the relatively limited data in gene-targeted mice, we will not be addressing the family's roles in ischemic pre-conditioning or its many interactions with various pro- and anti-apoptotic factors. This article is part of a special issue entitled "Key Signaling Molecules in Hypertrophy and Heart Failure."
Collapse
Affiliation(s)
- Hui Cheng
- Center for Translational Medicine and Cardiology Division, Thomas Jefferson University Hospital, Philadelphia, PA, USA.
| | | | | | | |
Collapse
|
35
|
Liou YM, Hsieh SR, Wu TJ, Chen JY. Green tea extract given before regional myocardial ischemia-reperfusion in rats improves myocardial contractility by attenuating calcium overload. Pflugers Arch 2010; 460:1003-14. [PMID: 20922441 DOI: 10.1007/s00424-010-0881-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2010] [Revised: 09/06/2010] [Accepted: 09/09/2010] [Indexed: 01/03/2023]
Abstract
There is evidence for a negative correlation between green tea consumption and cardiovascular diseases. The aim of the present study was to examine whether green tea extract (GTE) given before regional myocardial ischemia could improve depression of myocardial contractility by preventing cytosolic Ca(2+) overload. Regional ischemia-reperfusion (IR) was induced in rats by ligating the left anterior descending branch for 20 min, then releasing the ligature. Ligation induced ventricular arrhythmias in rats without GTE pretreatment, but decreased arrhythmogenesis was seen in rats pretreated 30 min earlier with GTE (400 mg/kg). During reperfusion, arrhythmias only occurred during the initial 5 min, and GTE pretreatment had no effect. After overnight recovery, serum cTnI levels were greatly increased in control post-IR rats but only slightly elevated in GTE-pretreated post-IR rats. Myocardial contractility measured by echocardiography was still depressed after 3 days in control post-IR rats, but not in GTE-pretreated post-IR rats. No myocardial ischemic injury was seen in post-IR rats with or without GTE pretreatment. Using freshly isolated single heart myocytes, GTE was found to attenuate the post-IR injury-associated cytosolic Ca(2+) overload and modulate changes in the levels and distribution of myofibril, adherens junction, and gap junction proteins. In summary, GTE pretreatment protects cardiomyocytes from IR injury by preventing cytosolic Ca(2+) overload, myofibril disruption, and alterations in adherens and gap junction protein expression and distribution.
Collapse
Affiliation(s)
- Ying-Ming Liou
- Department of Life Sciences, National Chung-Hsing University, Taichung 402, Taiwan.
| | | | | | | |
Collapse
|
36
|
Shenoy V, Kanasaki K, Kalluri R. Pre-eclampsia: connecting angiogenic and metabolic pathways. Trends Endocrinol Metab 2010; 21:529-36. [PMID: 20646932 DOI: 10.1016/j.tem.2010.05.002] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2010] [Revised: 05/04/2010] [Accepted: 05/06/2010] [Indexed: 10/19/2022]
Abstract
Pre-eclampsia is a hypertensive disease of pregnancy with a worldwide incidence of 5-8%. This review focuses on recent developments in pre-eclampsia research related to angiogenesis and metabolism. We first address the 'angiogenic imbalance' theory, which hypothesizes that pre-eclampsia results from an imbalance of factors that promote or antagonize angiogenesis, such as soluble fms-like tyrosine kinase (sFlt1), 2-methoxyestradiol (2-ME) and catechol-O-methyltransferase (COMT). Next, we analyze the association between pre-eclampsia and dysfunctional metabolism of both homocysteine and placental glycogen. We hope that illuminating some of the various connections existing between angiogenesis and metabolism in pre-eclampsia will facilitate the update or reconsideration of old models of pathogenesis.
Collapse
Affiliation(s)
- Vivek Shenoy
- Division of Matrix Biology, Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA 02215, USA
| | | | | |
Collapse
|