1
|
Modulations of Cardiac Functions and Pathogenesis by Reactive Oxygen Species and Natural Antioxidants. Antioxidants (Basel) 2021; 10:antiox10050760. [PMID: 34064823 PMCID: PMC8150787 DOI: 10.3390/antiox10050760] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Revised: 05/03/2021] [Accepted: 05/08/2021] [Indexed: 01/11/2023] Open
Abstract
Homeostasis in the level of reactive oxygen species (ROS) in cardiac myocytes plays a critical role in regulating their physiological functions. Disturbance of balance between generation and removal of ROS is a major cause of cardiac myocyte remodeling, dysfunction, and failure. Cardiac myocytes possess several ROS-producing pathways, such as mitochondrial electron transport chain, NADPH oxidases, and nitric oxide synthases, and have endogenous antioxidation mechanisms. Cardiac Ca2+-signaling toolkit proteins, as well as mitochondrial functions, are largely modulated by ROS under physiological and pathological conditions, thereby producing alterations in contraction, membrane conductivity, cell metabolism and cell growth and death. Mechanical stresses under hypertension, post-myocardial infarction, heart failure, and valve diseases are the main causes for stress-induced cardiac remodeling and functional failure, which are associated with ROS-induced pathogenesis. Experimental evidence demonstrates that many cardioprotective natural antioxidants, enriched in foods or herbs, exert beneficial effects on cardiac functions (Ca2+ signal, contractility and rhythm), myocytes remodeling, inflammation and death in pathological hearts. The review may provide knowledge and insight into the modulation of cardiac pathogenesis by ROS and natural antioxidants.
Collapse
|
2
|
Polydatin Attenuates OGD/R-Induced Neuronal Injury and Spinal Cord Ischemia/Reperfusion Injury by Protecting Mitochondrial Function via Nrf2/ARE Signaling Pathway. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:6687212. [PMID: 33995825 PMCID: PMC8081604 DOI: 10.1155/2021/6687212] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 03/10/2021] [Accepted: 03/24/2021] [Indexed: 02/08/2023]
Abstract
Spinal cord ischemia/reperfusion injury (SCII) is a devastating complication of spinal or thoracic surgical procedures and can lead to paraplegia or quadriplegia. Neuronal cell damage involving mitochondrial dysfunction plays an important role in the pathogenesis of SCII. Despite the availability of various treatment options, there are currently no mitochondria-targeting drugs that have proven effective against SCII. Polydatin (PD), a glucoside of resveratrol, is known to preserve mitochondrial function in central nervous system (CNS) diseases. The aim of the present study was to explore the neuro- and mito-protective functions of PD and its underlying mechanisms. An in vitro model of SCII was established by exposing spinal cord motor neurons (SMNs) to oxygen–glucose-deprivation/reperfusion (OGD/R), and the cells were treated with different dosages of PD for varying durations. PD improved neuronal viability and protected against OGD/R-induced apoptosis and mitochondrial injury in a dose-dependent manner. In addition, PD restored the activity of neuronal mitochondria in terms of mitochondrial membrane potential (MMP), intracellular calcium levels, mitochondrial permeability transition pore (mPTP) opening, generation of reactive oxygen species (ROS), and adenosine triphosphate (ATP) levels. Mechanistically, PD downregulated Keap1 and upregulated Nrf2, NQO-1, and HO-1 in the OGD/R-treated SMNs. Likewise, PD treatment also reversed the neuronal and mitochondrial damage induced by SCII in a mouse model. Furthermore, the protective effects of PD were partially blocked by the Nrf2 inhibitor. Taken together, PD relieves mitochondrial dysfunction-induced neuronal cell damage by activating the Nrf2/ARE pathway and is a suitable therapeutic option for SCII.
Collapse
|
3
|
Sun Z, Wang X. Protective effects of polydatin on multiple organ ischemia-reperfusion injury. Bioorg Chem 2020; 94:103485. [DOI: 10.1016/j.bioorg.2019.103485] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 11/23/2019] [Accepted: 11/26/2019] [Indexed: 02/09/2023]
|
4
|
Effects of Selenium and Melatonin on Ocular Ischemic Syndrome. BIOMED RESEARCH INTERNATIONAL 2019; 2019:8080564. [PMID: 31886253 PMCID: PMC6925799 DOI: 10.1155/2019/8080564] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Accepted: 11/05/2019] [Indexed: 12/16/2022]
Abstract
Purpose To determine the effects of selenium, melatonin, and selenium + melatonin administered for one month on anterior chamber (AC) malondialdehyde (MDA) and AC glutathione (GSH) levels in patients with ocular ischemic syndrome. Materials and Methods Thirty-five patients were included in the study. Study groups were formed as follows: (1) control group, (2) ischemia group, (3) selenium + ischemia group, (4) melatonin + ischemia group, and (5) selenium + melatonin + ischemia group. AC samples were obtained. MDA and GSH levels in AC samples were evaluated. Results MDA levels were significantly increased in ischemia groups. Selenium and melatonin supplementation resulted in reduction of MDA levels and significant increase in GSH values. Discussion Increased lipid peroxidation associated with ischemia of the anterior segment has been prevented by selenium and melatonin supplementation. This trial is registered with ClinicalTrials.gov NCT04005222.
Collapse
|
5
|
miR-139-5p inhibits isoproterenol-induced cardiac hypertrophy by targetting c-Jun. Biosci Rep 2018; 38:BSR20171430. [PMID: 29440459 PMCID: PMC5843750 DOI: 10.1042/bsr20171430] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Revised: 01/26/2018] [Accepted: 02/08/2018] [Indexed: 12/23/2022] Open
Abstract
Hypertrophic cardiomyopathy (HCM) is a serious monogenic disease characterized by cardiac hypertrophy, fibrosis, sudden cardiac death, and heart failure. Previously, we identified that miR-139-5p was down-regulated in HCM patients. However, the regulatory effects of miR-139-5p remain unclear. Thus, we investigated the role of miR-139-5p in the regulation of cardiac hypertrophy. The expression of miR-139-5p in left ventricular tissues in HCM patients and mice subjected to transverse aortic constriction (TAC) was significantly down-regulated. Knockdown of miR-139-5p expression in neonatal rat cardiomyocytes (NRCMs) induced cardiomyocyte enlargement and increased atrial natriuretic polypeptide (ANP) expression. Overexpression of miR-139-5p antagonized isoproterenol (ISO)-induced cardiomyocyte enlargement and ANP/brain natriuretic peptide (BNP) up-regulation. More importantly, we found that c-Jun expression was inhibited by miR-139-5p in NRCMs. Knockdown of c-Jun expression significantly attenuated cardiac hypertrophy induced by miR-139-5p deprivation. Our data indicated that miR-139-5p was down-regulated in the hearts of HCM patients and that it inhibited cardiac hypertrophy by targetting c-Jun expression.
Collapse
|
6
|
Polydatin Protects Diabetic Heart against Ischemia-Reperfusion Injury via Notch1/Hes1-Mediated Activation of Pten/Akt Signaling. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:2750695. [PMID: 29636838 PMCID: PMC5831600 DOI: 10.1155/2018/2750695] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/09/2017] [Revised: 11/21/2017] [Accepted: 12/06/2017] [Indexed: 12/20/2022]
Abstract
Diabetes exacerbates oxidative/nitrative stress during myocardial ischemia-reperfusion (MI/R) injury. Recent studies highlighted the cardioprotective actions of polydatin. However, its effect on diabetic MI/R injury and the underlying mechanisms remain unknown. This work was undertaken to evaluate the effect of polydatin on diabetic MI/R injury with a focus on Notch1/Hes1 signaling and myocardial oxidative/nitrative stress. Streptozotocin- (STZ-) induced diabetic rats were administered with polydatin (20 mg/kg/d) in the absence or presence of DAPT (a γ-secretase inhibitor) or LY294002 (a PI3K/Akt inhibitor) and then subjected to MI/R injury. Polydatin administration preserved cardiac function and reduced myocardial infarct size. Moreover, polydatin ameliorated myocardial oxidative/nitrative stress damage as evidenced by decreased myocardial superoxide generation, malondialdehyde, gp91phox expression, iNOS expression, NO metabolite level, and nitrotyrosine content and increased eNOS phosphorylation. However, these effects were blocked by DAPT administration. DAPT also inhibited the stimulatory effect of polydatin on the Notch1/Hes1-Pten/Akt signaling pathway in a diabetic myocardium. Additionally, LY294002 not only abolished polydatin's antiapoptotic effect but also reversed its inhibitory effect on myocardial oxidative/nitrative stress. Polydatin effectively reduced MI/R injury and improved left ventricular functional recovery under diabetic condition by ameliorating oxidative/nitrative stress damage. Importantly, Notch1/Hes1-mediated activation of Pten/Akt signaling played a crucial role in this process.
Collapse
|
7
|
Yang J, Zhang R, Jiang X, Lv J, Li Y, Ye H, Liu W, Wang G, Zhang C, Zheng N, Dong M, Wang Y, Chen P, Santosh K, Jiang Y, Liu J. Toll-like receptor 4-induced ryanodine receptor 2 oxidation and sarcoplasmic reticulum Ca 2+ leakage promote cardiac contractile dysfunction in sepsis. J Biol Chem 2017; 293:794-807. [PMID: 29150444 DOI: 10.1074/jbc.m117.812289] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Revised: 11/03/2017] [Indexed: 12/22/2022] Open
Abstract
Studies suggest the potential role of a sarcoplasmic reticulum (SR) Ca2+ leak in cardiac contractile dysfunction in sepsis. However, direct supporting evidence is lacking, and the mechanisms underlying this SR leak are poorly understood. Here, we investigated the changes in cardiac Ca2+ handling and contraction in LPS-treated rat cardiomyocytes and a mouse model of polymicrobial sepsis produced by cecal ligation and puncture (CLP). LPS decreased the systolic Ca2+ transient and myocyte contraction as well as SR Ca2+ content. Meanwhile, LPS increased Ca2+ spark-mediated SR Ca2+ leak. Preventing the SR leak with ryanodine receptor (RyR) blocker tetracaine restored SR load and increased myocyte contraction. Similar alterations in Ca2+ handling were observed in cardiomyocytes from CLP mice. Treatment with JTV-519, an anti-SR leak drug, restored Ca2+ handling and improved cardiac function. In the LPS-treated cardiomyocytes, mitochondrial reactive oxygen species and oxidative stress in RyR2 were increased, whereas the levels of the RyR2-associated FK506-binding protein 1B (FKBP12.6) were decreased. The Toll-like receptor 4 (TLR4)-specific inhibitor TAK-242 reduced the oxidative stress in LPS-treated cells, decreased the SR leak, and normalized Ca2+ handling and myocyte contraction. Consistently, TLR4 deletion significantly improved cardiac function and corrected abnormal Ca2+ handling in the CLP mice. This study provides evidence for the critical role of the SR Ca2+ leak in the development of septic cardiomyopathy and highlights the therapeutic potential of JTV-519 by preventing SR leak. Furthermore, it reveals that TLR4 activation-induced mitochondrial reactive oxygen species production and the resulting oxidative stress in RyR2 contribute to the SR Ca2+ leak.
Collapse
Affiliation(s)
- Jie Yang
- From the Department of Pathophysiology, Southern Medical University, Guangzhou 510515, China.,the Department of Pathophysiology, School of Medicine, Shenzhen University, Shenzhen 518060, China
| | - Rui Zhang
- From the Department of Pathophysiology, Southern Medical University, Guangzhou 510515, China
| | - Xin Jiang
- the Department of Cardiology, Second Affiliated Hospital of Jinan University (Shenzhen People's Hospital), Shenzhen 518000, China
| | - Jingzhang Lv
- the Shenzhen Entry-Exit Inspection and Quarantine Bureau, Shenzhen 518045, China, and
| | - Ying Li
- the Department of Pathophysiology, School of Medicine, Shenzhen University, Shenzhen 518060, China
| | - Hongyu Ye
- the Department of Cardiothoracic Surgery, Zhongshan People's Hospital, Zhongshan 528415, China
| | - Wenjuan Liu
- the Department of Pathophysiology, School of Medicine, Shenzhen University, Shenzhen 518060, China
| | - Gang Wang
- the Department of Pathophysiology, School of Medicine, Shenzhen University, Shenzhen 518060, China
| | - Cuicui Zhang
- the Department of Pathophysiology, School of Medicine, Shenzhen University, Shenzhen 518060, China
| | - Na Zheng
- the Department of Pathophysiology, School of Medicine, Shenzhen University, Shenzhen 518060, China
| | - Ming Dong
- the Department of Pathophysiology, School of Medicine, Shenzhen University, Shenzhen 518060, China
| | - Yan Wang
- the Department of Pathophysiology, School of Medicine, Shenzhen University, Shenzhen 518060, China
| | - Peiya Chen
- the Department of Pathophysiology, School of Medicine, Shenzhen University, Shenzhen 518060, China
| | - Kumar Santosh
- the Department of Pathophysiology, School of Medicine, Shenzhen University, Shenzhen 518060, China
| | - Yong Jiang
- From the Department of Pathophysiology, Southern Medical University, Guangzhou 510515, China,
| | - Jie Liu
- From the Department of Pathophysiology, Southern Medical University, Guangzhou 510515, China, .,the Department of Pathophysiology, School of Medicine, Shenzhen University, Shenzhen 518060, China
| |
Collapse
|
8
|
Liu W, Chen P, Deng J, Lv J, Liu J. Resveratrol and polydatin as modulators of Ca 2+ mobilization in the cardiovascular system. Ann N Y Acad Sci 2017; 1403:82-91. [PMID: 28665033 DOI: 10.1111/nyas.13386] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Revised: 04/20/2017] [Accepted: 04/21/2017] [Indexed: 12/29/2022]
Abstract
In the cardiovascular system, Ca2+ controls cardiac excitation-contraction coupling and vascular contraction and dilation. Disturbances in intracellular Ca2+ homeostasis induce malfunctions of the cardiovascular system, including cardiac pump dysfunction, arrhythmia, remodeling, and apoptosis, as well as hypertension and impairment of vascular reactivity. Therefore, developing drugs and strategies manipulating Ca2+ handling are highly valued in the treatment of cardiovascular disease. Resveratrol (Res) and polydatin (PD), a Res glucoside, have been well established to have beneficial effects on improving cardiovascular function. Studies from our laboratory and others have demonstrated that they exhibit inotropic effects on normal heart and therapeutic effects on hypertension, cardiac ischemia/reperfusion injury, hypertrophy, and heart failure by manipulating Ca2+ mobilization. The actions of Res and PD on Ca2+ signals delicately manipulated by multiple Ca2+ -handling proteins are pleiotropic and somewhat controversial, depending on cellular species and intracellular oxidative status. Here, we focus on the effects of Res and PD on controlling Ca2+ homeostasis in the heart and vasculature under normal and diseased conditions and highlight the key direct and indirect molecules mediating these effects.
Collapse
Affiliation(s)
- Wenjuan Liu
- Department of Pathophysiology, School of Medicine, Shenzhen University, Shenzhen, China
| | - Peiya Chen
- Department of Pathophysiology, School of Medicine, Shenzhen University, Shenzhen, China
| | - Jianxin Deng
- Department of Endocrinology, the First Affiliated Hospital of Shenzhen University, Shenzhen University, Shenzhen, China.,Department of Endocrinology, Shenzhen No. 2 People's Hospital, Shenzhen, China
| | - Jingzhang Lv
- Shenzhen Entry-Exit Inspection and Quarantine Bureau, Shenzhen, China
| | - Jie Liu
- Department of Pathophysiology, School of Medicine, Shenzhen University, Shenzhen, China
| |
Collapse
|
9
|
Polydatin ameliorates renal ischemia/reperfusion injury by decreasing apoptosis and oxidative stress through activating sonic hedgehog signaling pathway. Food Chem Toxicol 2016; 96:215-25. [DOI: 10.1016/j.fct.2016.07.032] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Revised: 07/11/2016] [Accepted: 07/28/2016] [Indexed: 12/12/2022]
|
10
|
Li Y, Wang L, Zhao H, Du L, Ye B. Electrochemical behavior of polydatin and its highly-sensitive determination based on graphene modified electrode. J Electroanal Chem (Lausanne) 2016. [DOI: 10.1016/j.jelechem.2016.04.042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
|
11
|
Olgar Y, Ozturk N, Usta C, Puddu PE, Ozdemir S. Ellagic acid reduces L-type Ca2+ current and contractility through modulation of NO-GC-cGMP pathways in rat ventricular myocytes. J Cardiovasc Pharmacol 2015; 64:567-73. [PMID: 25165997 DOI: 10.1097/fjc.0000000000000153] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
There is evidence that phenolic structure may have biological functions. Ellagic acid (EA), a phenolic compound, has been suggested to have cardioprotective effects. EA effects were investigated on cardiac Ca currents and contractility in rat ventricular myocytes to elucidate the underlying mechanisms. Freshly isolated ventricular myocytes from rat hearts were used. EA dose-dependently reduced Ca currents (ICaL) with EC50 = 23 nM, whereas it did not affect the inactivation and reactivation parameters. Inhibition of adenylate cyclase by SQ-22536 (10 μM) and probucol (5 μM) had no effect on EA modulation of ICaL. Nitric oxide synthase block by L-NAME (500 μM) and of guanylate cyclase by ODQ (1 μM) abolished EA inhibitory effects on ICaL. Moreover, EA blunted ventricular myocytes' fractional shortening in a concentration-dependent manner. In conclusion, EA affects ionic and mechanical properties of rat ventricular myocytes starting at nanomolar concentrations. EA suppresses ICaL and exerts negative inotropic effects through activation of NOS-GC-cGMP pathways. Thus, EA may be useful in pathophysiological conditions such as hypertension and ischemic heart diseases.
Collapse
Affiliation(s)
- Yusuf Olgar
- Departments of *Biophysics; and †Pharmacology, Faculty of Medicine, Akdeniz University, Antalya, Turkey; and ‡Department of Cardiovascular, Respiratory, Nephrological, Anesthesiological and Geriatric Sciences, Sapienza University of Rome, Rome, Italy
| | | | | | | | | |
Collapse
|
12
|
Preclinical and clinical evidence for the role of resveratrol in the treatment of cardiovascular diseases. Biochim Biophys Acta Mol Basis Dis 2015; 1852:1155-77. [DOI: 10.1016/j.bbadis.2014.10.016] [Citation(s) in RCA: 211] [Impact Index Per Article: 23.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2014] [Revised: 10/24/2014] [Accepted: 10/27/2014] [Indexed: 12/12/2022]
|
13
|
Zhang Q, Tan Y, Zhang N, Yao F. Polydatin prevents angiotensin II-induced cardiac hypertrophy and myocardial superoxide generation. Exp Biol Med (Maywood) 2014; 240:1352-61. [PMID: 25488910 DOI: 10.1177/1535370214561958] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2014] [Accepted: 10/11/2014] [Indexed: 12/26/2022] Open
Abstract
Our studies and others recently demonstrate that polydatin, a resveratrol glucoside, has antioxidative and cardioprotective effects. This study aims to investigate the direct effects of polydatin on Ang II-induced cardiac hypertrophy to explore the potential role of polydatin in cardioprotection. Our results showed that in primary cultured cardiomyocytes, polydatin blocked Ang II-induced cardiac hypertrophy in a dose-dependent manner, which were associated with reduction in the cell surface area and [(3)H]leucine incorporation, as well as attenuation of the mRNA expressions of atrial natriuretic factor and β-myosin heavy chain. Furthermore, polydatin prevented rat cardiac hypertrophy induced by Ang II infusion, as assessed by heart weight-to-body weight ratio, cross-sectional area of cardiomyocyte, and gene expression of hypertrophic markers. Further investigation demonstrated that polydatin attenuated the Ang II-induced increase in the reactive oxygen species levels and NADPH oxidase activity in vivo and in vitro. Polydatin also blocked the Ang II-stimulated increases of Nox4 and Nox2 expression in cultured cardiomyocytes and the hearts of Ang II-infused rats. Our results indicate that polydatin has the potential to protect against Ang II-mediated cardiac hypertrophy through suppression of NADPH oxidase activity and superoxide production. These observations may shed new light on the understanding of the cardioprotective effect of polydatin.
Collapse
Affiliation(s)
- Qi Zhang
- Medical Research Center, Shaanxi University of Chinese Medicine, Xianyang, Shaanxi 712046, P.R. China
| | - Yingying Tan
- Medical Research Center, Shaanxi University of Chinese Medicine, Xianyang, Shaanxi 712046, P.R. China
| | - Nan Zhang
- Medical Research Center, Shaanxi University of Chinese Medicine, Xianyang, Shaanxi 712046, P.R. China
| | - Fanrong Yao
- Department of Pharmacology & Toxicology, Brody School of Medicine, East Carolina University, Greenville, NC 27834, USA
| |
Collapse
|
14
|
Dong M, Ding W, Liao Y, Liu Y, Yan D, Zhang Y, Wang R, Zheng N, Liu S, Liu J. Polydatin prevents hypertrophy in phenylephrine induced neonatal mouse cardiomyocytes and pressure-overload mouse models. Eur J Pharmacol 2014; 746:186-97. [PMID: 25449040 DOI: 10.1016/j.ejphar.2014.11.012] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2014] [Revised: 11/07/2014] [Accepted: 11/11/2014] [Indexed: 12/17/2022]
Abstract
Recent evidence suggests that polydatin (PD), a resveratrol glucoside, may have beneficial actions on the cardiac hypertrophy. Therefore, the current study focused on the underlying mechanism of the PD anti-hypertrophic effect in cultured cardiomyocytes and in progression from cardiac hypertrophy to heart failure in vivo. Experiments were performed on cultured neonatal rat, ventricular myocytes as well as adult mice subjected to transverse aortic constriction (TAC). Treatment of cardiomyocytes with phenylephrine for three days produced a marked hypertrophic effect as evidenced by significantly increased cell surface area and atrial natriuretic peptide (ANP) protein expression. These effects were attenuated by PD in a concentration-dependent manner with a complete inhibition of hypertrophy at the concentration of 50 µM. Phenylephrine increased ROCK activity, as well as intracellular reactive oxygen species production and lipid peroxidation. The oxidizing agent DTDP similarly increased Rho kinase (ROCK) activity and induced hypertrophic remodeling. PD treatment inhibited phenylephrine-induced oxidative stress and consequently suppressed ROCK activation in cardiomyocytes. Hypertrophic remodeling and heart failure were demonstrated in mice subjected to 13 weeks of TAC. Upregulation of ROCK signaling pathway was also evident in TAC mice. PD treatment significantly attenuated the increased ROCK activity, associated with a markedly reduced hypertrophic response and improved cardiac function. Our results demonstrated a robust anti-hypertrophic remodeling effect of polydatin, which is mediated by inhibition of reactive oxygen species dependent ROCK activation.
Collapse
Affiliation(s)
- Ming Dong
- Medical College, Shenzhen University, Shenzhen 518000, Guangdong, China
| | - Wenwen Ding
- Department of Pathophysiology, Southern Medical University, Guangzhou 510515, China
| | - Yansong Liao
- Cardiology Division, Department of Medicine, The University of Hongkong, Hong Kong, China
| | - Ye Liu
- Department of Anatomy, Hebei Medical University, Hebei 050017, China
| | - Dewen Yan
- Department of Endocrinology, The First Affiliated Hospital of Shenzhen University, Shenzhen 518060, China
| | - Yi Zhang
- Medical College, Shenzhen University, Shenzhen 518000, Guangdong, China
| | - Rongming Wang
- Medical College, Shenzhen University, Shenzhen 518000, Guangdong, China
| | - Na Zheng
- Medical College, Shenzhen University, Shenzhen 518000, Guangdong, China
| | - Shuaiye Liu
- Medical College, Shenzhen University, Shenzhen 518000, Guangdong, China
| | - Jie Liu
- Medical College, Shenzhen University, Shenzhen 518000, Guangdong, China.
| |
Collapse
|
15
|
Ding W, Dong M, Deng J, Yan D, Liu Y, Xu T, Liu J. Polydatin attenuates cardiac hypertrophy through modulation of cardiac Ca2+ handling and calcineurin-NFAT signaling pathway. Am J Physiol Heart Circ Physiol 2014; 307:H792-802. [DOI: 10.1152/ajpheart.00017.2014] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Polydatin (PD), a resveratrol glucoside extracted from the perennial herbage Polygonum cuspidatum, has been suggested to have wide cardioprotective effects. This study aimed to explore the direct antihypertrophic role of PD in cultured neonatal rat ventricular myocytes (NRVMs) and its therapeutic effects against pressure overload (PO)-induced hypertrophic remodeling and heart failure. Furthermore, we investigated the mechanisms underlying the actions of PD. Treatment of NRVMs with phenylephrine for 72 h induced myocyte hypertrophy, where the cell surface area and protein levels of atrial natriuretic peptide and β-myosin heavy chain (β-MHC) were significantly increased. The amplitude of systolic Ca2+ transient was increased, and sarcoplasmic reticulum Ca2+ recycling was prolonged. Concomitantly, calcineurin activity was increased and NFAT protein was imported into the nucleus. PD treatment restored Ca2+ handling and inhibited calcineurin-NFAT signaling, thus attenuating the hypertrophic remodeling in NRVMs. PO-induced cardiac hypertrophy was produced by transverse aortic constriction (TAC) in C57BL/6 mice, where the left ventricular posterior wall thickness and heart-to-body weight ratio were significantly increased. The cardiac function was increased at 5 wk of TAC, but significantly decreased at 13 wk of TAC. The amplitude of Ca2+ transient and calcineurin activity were increased at 5 wk of TAC. PD treatment largely abolished TAC-induced hypertrophic remodeling by inhibiting the Ca2+-calcineurin pathway. Surprisingly, PD did not inhibit myocyte contractility despite that the amplitude of Ca2+ transient was decreased. The cardiac function remained intact at 13 wk of TAC. In conclusion, PD is beneficial against PO-induced cardiac hypertrophy and heart failure largely through inhibiting the Ca2+-calcineurin pathway without compromising cardiac contractility.
Collapse
Affiliation(s)
- Wenwen Ding
- Department of Pathophysiology, Southern Medical University, Guangzhou, China; and
| | - Ming Dong
- Department of Pathophysiology, School of Medicine, Shenzhen University, Shenzhen, China
| | - Jianxin Deng
- Department of Pathophysiology, Southern Medical University, Guangzhou, China; and
| | - Dewen Yan
- Department of Endocrinology, The First Affiliated Hospital of Shenzhen University, Shenzhen, China
| | - Yun Liu
- Department of Pathophysiology, School of Medicine, Shenzhen University, Shenzhen, China
| | - Teng Xu
- Department of Pathophysiology, School of Medicine, Shenzhen University, Shenzhen, China
| | - Jie Liu
- Department of Pathophysiology, School of Medicine, Shenzhen University, Shenzhen, China
- Department of Pathophysiology, Southern Medical University, Guangzhou, China; and
| |
Collapse
|
16
|
High-mobility group box 1 (HMGB1) impaired cardiac excitation–contraction coupling by enhancing the sarcoplasmic reticulum (SR) Ca2+ leak through TLR4–ROS signaling in cardiomyocytes. J Mol Cell Cardiol 2014; 74:260-73. [DOI: 10.1016/j.yjmcc.2014.06.003] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2014] [Revised: 05/04/2014] [Accepted: 06/08/2014] [Indexed: 10/25/2022]
|
17
|
Du QH, Peng C, Zhang H. Polydatin: a review of pharmacology and pharmacokinetics. PHARMACEUTICAL BIOLOGY 2013; 51:1347-1354. [PMID: 23862567 DOI: 10.3109/13880209.2013.792849] [Citation(s) in RCA: 178] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
CONTEXT Polydatin, also named piceid (3,4',5-trihydroxystilbene-3-β-d-glucoside, PD), is a monocrystalline compound isolated from Polygonum cuspidatum Sieb. et Zucc. (Polygonaceae), but is also detected in grape, peanut, hop cones, red wines, hop pellets, cocoa-containing products, chocolate products and many daily diets. There are numerous investigations reported of PD in the past 22 years, but they are usually scattered across various publications, which may block further research and clinical use of PD. OBJECTIVE The article summarizes and evaluates the published scientific information of PD pharmacological effects and pharmacokinetics since 1990. MATERIALS AND METHODS The information from 98 cases included in this review was compiled using major databases such as MEDLINE, Elsevier, Springer, PubMed, Scholar and CNKI. RESULTS Numerous pharmacological investigations of PD mainly focus on cardiovascular effects, neuroprotection, anti-inflammatory and immunoregulatory effects, anti-oxidation, anti-tumor, liver and lung protection, etc. CONCLUSION A great number of pharmacological and pharmacokinetic investigations in the past 22 years have demonstrated that PD has favorable therapeutic properties, indicating its potential as an effective material. However, further research is needed to explore its molecular mechanisms of action and definitive target proteins.
Collapse
Affiliation(s)
- Qiao-Hui Du
- Key Laboratory of Standardization of Chinese Herbal Medicines of Ministry of Education, Chengdu University of Traditional Chinese Medicine, Pharmacy College , Chengdu , P.R. China and
| | | | | |
Collapse
|
18
|
Myofilament Ca2+ desensitization mediates positive lusitropic effect of neuronal nitric oxide synthase in left ventricular myocytes from murine hypertensive heart. J Mol Cell Cardiol 2013; 60:107-15. [DOI: 10.1016/j.yjmcc.2013.04.017] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2012] [Revised: 04/13/2013] [Accepted: 04/15/2013] [Indexed: 11/23/2022]
|
19
|
Jiang X, Liu W, Deng J, Lan L, Xue X, Zhang C, Cai G, Luo X, Liu J. Polydatin protects cardiac function against burn injury by inhibiting sarcoplasmic reticulum Ca2+ leak by reducing oxidative modification of ryanodine receptors. Free Radic Biol Med 2013; 60:292-9. [PMID: 23499836 DOI: 10.1016/j.freeradbiomed.2013.02.030] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2012] [Revised: 02/26/2013] [Accepted: 02/28/2013] [Indexed: 10/27/2022]
Abstract
Our recent studies demonstrate that burn trauma induces leaky sarcoplasmic reticulum (SR) in heart due to excessively active ryanodine receptor (RyR) function. SR Ca(2+) leak causes partial depletion of SR Ca(2+) content and disturbances in intracellular Ca(2+) homeostasis, resulting in the pathogenesis of burn-generated cardiac dysfunction. This study investigated the role of polydatin, a resveratrol glucoside, in preventing SR leak and its therapeutic effect against burn-generated cardiac dysfunction. We found that polydatin treatment improved cardiac function impaired by burn injury of 30% of total body surface area. Parallel to the alterations in cardiac function, polydatin significantly increased the defective systolic Ca(2+) transient and contractility in burn-traumatized cardiomyocytes. Burn injury increased the occurrence of Ca(2+) sparks. The enhancement of Ca(2+) spark-mediated SR leak caused partial depletion of SR Ca(2+) content in burn-traumatized cardiomyocytes. Furthermore, we found that the content of free thiols (the number of reduced cysteines) in RyR2 in cardiomyocytes determined by the monobromobimane fluorescence of RyR2 was decreased markedly in burn-traumatized hearts. Polydatin treatment decreased intracellular reactive oxygen species levels and restored the amount of free thiols in RyR2 in burns. Concomitantly, polydatin corrected Ca(2+) spark-mediated SR leak and restored SR Ca(2+) load. The systolic Ca(2+) transient and cellular contractility were significantly increased by polydatin treatment. Taken together, the present findings provide the first evidence demonstrating that polydatin prevents enhanced Ca(2+) spark-mediated SR leak by reducing oxidative stress in RyR2 in burn-traumatized heart, leading to protection of cardiac function against burn injury.
Collapse
Affiliation(s)
- Xin Jiang
- Department of Pathophysiology, School of Medicine, Shenzhen University, Shenzhen 518060, China
| | | | | | | | | | | | | | | | | |
Collapse
|