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Duangrat R, Parichatikanond W, Chanmahasathien W, Mangmool S. Adenosine A 3 Receptor: From Molecular Signaling to Therapeutic Strategies for Heart Diseases. Int J Mol Sci 2024; 25:5763. [PMID: 38891948 PMCID: PMC11171512 DOI: 10.3390/ijms25115763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2024] [Revised: 05/23/2024] [Accepted: 05/24/2024] [Indexed: 06/21/2024] Open
Abstract
Cardiovascular diseases (CVDs), particularly heart failure, are major contributors to early mortality globally. Heart failure poses a significant public health problem, with persistently poor long-term outcomes and an overall unsatisfactory prognosis for patients. Conventionally, treatments for heart failure have focused on lowering blood pressure; however, the development of more potent therapies targeting hemodynamic parameters presents challenges, including tolerability and safety risks, which could potentially restrict their clinical effectiveness. Adenosine has emerged as a key mediator in CVDs, acting as a retaliatory metabolite produced during cellular stress via ATP metabolism, and works as a signaling molecule regulating various physiological processes. Adenosine functions by interacting with different adenosine receptor (AR) subtypes expressed in cardiac cells, including A1AR, A2AAR, A2BAR, and A3AR. In addition to A1AR, A3AR has a multifaceted role in the cardiovascular system, since its activation contributes to reducing the damage to the heart in various pathological states, particularly ischemic heart disease, heart failure, and hypertension, although its role is not as well documented compared to other AR subtypes. Research on A3AR signaling has focused on identifying the intricate molecular mechanisms involved in CVDs through various pathways, including Gi or Gq protein-dependent signaling, ATP-sensitive potassium channels, MAPKs, and G protein-independent signaling. Several A3AR-specific agonists, such as piclidenoson and namodenoson, exert cardioprotective impacts during ischemia in the diverse animal models of heart disease. Thus, modulating A3ARs serves as a potential therapeutic approach, fueling considerable interest in developing compounds that target A3ARs as potential treatments for heart diseases.
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Affiliation(s)
- Ratchanee Duangrat
- Department of Pharmacology, Faculty of Science, Mahidol University, Bangkok 10400, Thailand;
| | | | - Wisinee Chanmahasathien
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand;
| | - Supachoke Mangmool
- Department of Pharmaceutical Care, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand
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Voronkov NS, Popov SV, Naryzhnaya NV, Prasad NR, Petrov IM, Kolpakov VV, Tomilova EA, Sapozhenkova EV, Maslov LN. Effect of Cold Adaptation on the State of Cardiovascular System and Cardiac Tolerance to Ischemia/Reperfusion Injury. IRANIAN BIOMEDICAL JOURNAL 2024; 28:59-70. [PMID: 38770843 PMCID: PMC11186613 DOI: 10.61186/ibj.3872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 08/08/2023] [Indexed: 05/22/2024]
Abstract
Despite the unconditional success achieved in the treatment and prevention of AMI over the past 40 years, mortality in this disease remains high. Hence, it is necessary to develop novel drugs with mechanism of action different from those currently used in clinical practices. Studying the molecular mechanisms involved in the cardioprotective effect of adapting to cold could contribute to the development of drugs that increase cardiac tolerance to the impact of ischemia/reperfusion. An analysis of the published data shows that the long-term human stay in the Far North contributes to the occurrence of cardiovascular diseases. At the same time, chronic and continuous exposure to cold increases tolerance of the rat heart to ischemia/ reperfusion. It has been demonstrated that the cardioprotective effect of cold adaptation depends on the activation of ROS production, stimulation of the β2-adrenergic receptor and protein kinase C, MPT pore closing, and KATP channel.
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Affiliation(s)
- Nikita S. Voronkov
- Cardiology Research Institute, Tomsk National Research Medical Center of the RAS, Tomsk, Russia
- Department of Physiology, Tomsk State University, Tomsk, Russia
| | - Sergey V. Popov
- Cardiology Research Institute, Tomsk National Research Medical Center of the RAS, Tomsk, Russia
| | - Natalia V. Naryzhnaya
- Cardiology Research Institute, Tomsk National Research Medical Center of the RAS, Tomsk, Russia
| | - N. Rajendra Prasad
- Department of Biochemistry and Biotechnology, Faculty of Science, Annamalai University, Annamalainagar, Tamilnadu, India
| | | | | | | | | | - Leonid N. Maslov
- Cardiology Research Institute, Tomsk National Research Medical Center of the RAS, Tomsk, Russia
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Wang P, Gao R, Wu T, Zhang J, Sun X, Fan F, Wang C, Qian S, Li B, Zou Y, Huo Y, Fassett J, Chen Y, Ge J, Sun A. Accumulation of endogenous adenosine improves cardiomyocyte metabolism via epigenetic reprogramming in an ischemia-reperfusion model. Redox Biol 2023; 67:102884. [PMID: 37725888 PMCID: PMC10507380 DOI: 10.1016/j.redox.2023.102884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 08/30/2023] [Accepted: 09/10/2023] [Indexed: 09/21/2023] Open
Abstract
Adenosine kinase (ADK) plays the major role in cardiac adenosine metabolism, so that inhibition of ADK increases myocardial adenosine levels. While the cardioprotective actions of extracellular adenosine against ischemia/reperfusion (I/R) are well-established, the role of cellular adenosine in protection against I/R remains unknown. Here we investigated the role of cellular adenosine in epigenetic regulation on cardiomyocyte gene expression, glucose metabolism and tolerance to I/R. Evans blue/TTC staining and echocardiography were used to assess the extent of I/R injury in mice. Glucose metabolism was evaluated by positron emission tomography and computed tomography (PET/CT). Methylated DNA immunoprecipitation (MeDIP) and bisulfite sequencing PCR (BSP) were used to evaluate DNA methylation. Lentiviral/adenovirus transduction was used to overexpress DNMT1, and the OSI-906 was administered to inhibit IGF-1. Cardiomyocyte-specific ADK/IGF-1-knockout mice were used for mechanistic experiments.Cardiomyocyte-specific ADK knockout enhanced glucose metabolism and ameliorated myocardial I/R injury in vivo. Mechanistically, ADK deletion caused cellular adenosine accumulation, decreased DNA methyltransferase 1 (DNMT1) expression and caused hypomethylation of multiple metabolic genes, including insulin growth factor 1 (IGF-1). DNMT1 overexpression abrogated these beneficial effects by enhancing apoptosis and decreasing IGF-1 expression. Inhibition of IGF-1 signaling with OSI-906 or genetic knocking down of IGF-1 also abrogated the cardioprotective effects of ADK knockout, revealing the therapeutic potential of increasing IGF-1 expression in attenuating myocardial I/R injury. In conclusion, the present study demonstrated that cardiomyocyte ADK deletion ameliorates myocardial I/R injury via epigenetic upregulation of IGF-1 expression via the cardiomyocyte adenosine/DNMT1/IGF-1 axis.
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Affiliation(s)
- Peng Wang
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, China; Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai, China.
| | - Rifeng Gao
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, China; Cardiac Surgery Department, The Second Affiliated Hospital Zhejiang University School of Medicine, China
| | - Tingting Wu
- Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Jinyan Zhang
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Xiaolei Sun
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, China; Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Fan Fan
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, China; Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Cong Wang
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, China; Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Sanli Qian
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, China; Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Bingyu Li
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, China; Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yunzeng Zou
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, China; Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yuqing Huo
- Vascular Biology Center, Department of Cellular Biology and Anatomy, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - John Fassett
- Department of Pharmacology and Toxicology, University of Graz, 8010, Graz, Austria
| | - Yingjie Chen
- Department of Physiology & Biophysics, University Mississippi Medical Center, MS, 39216, USA
| | - Junbo Ge
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, China; Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Aijun Sun
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, China; Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai, China
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Menezes-Rodrigues FS, de Oliveira MP, Araújo EA, Ferraz HB, Finsterer J, Olszewer E, Taha MO, Scorza CA, Caricati-Neto A, Scorza FA. Role of cardiac β 1-adrenergic and A 1-adenosine receptors in severe arrhythmias related to Parkinson's disease. Clinics (Sao Paulo) 2023; 78:100243. [PMID: 37459671 PMCID: PMC10757299 DOI: 10.1016/j.clinsp.2023.100243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 06/02/2023] [Accepted: 06/19/2023] [Indexed: 07/27/2023] Open
Abstract
AIMS Although reduced life expectancy in Parkinson's Disease (PD) patients has been related to severe cardiac arrhythmias due to autonomic dysfunctions, its molecular mechanisms remain unclear. To investigate the role of cardiac β1-Adrenergic (β1AR) and A1-Adenosine (A1R) receptors in these dysfunctions, the pharmacological effects of stimulation of cardiac β1AR (isoproterenol, ISO), in the absence and presence of cardiac β1AR (atenolol, AT) or A1R (1,3-dipropyl-8-cyclopentyl xanthine, DPCPX) blockade, on the arrhythmias induced by Ischemia/Reperfusion (CIR) in an animal PD model were studied. METHODS PD was produced by dopaminergic lesions (confirmed by immunohistochemistry analysis) caused by the injection of 6-hydroxydopamine (6-OHDA, 6 μg) in rat striatum. CIR was produced by a surgical interruption for 10 min followed by reestablishment of blood circulation in the descendent left coronary artery. On the incidence of CIR-Induced Ventricular Arrhythmias (VA), Atrioventricular Block (AVB), and Lethality (LET), evaluated by Electrocardiogram (ECG) analysis, the effects of intravenous treatment with ISO, AT and DPCPX (before CIR) were studied. RESULTS VA, AVB and LET incidences were significantly higher in 6-OHDA (83%, 92%, 100%, respectively) than in control rats (58%, 67% and 67%, respectively). ISO treatment significantly reduced these incidences in 6-OHDA (33%, 33% and 42%, respectively) and control rats (25%, 25%, 33%, respectively), indicating that stimulation of cardiac β1AR induced cardioprotection. This response was prevented by pretreatment with AT and DPCPX, confirming the involvement of cardiac β1AR and A1R. CONCLUSION Pharmacological modulation of cardiac β1AR and A1R could be a potential therapeutic strategy to reduce severe arrhythmias and increase life expectancy in PD patients.
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Affiliation(s)
- Francisco Sandro Menezes-Rodrigues
- Laboratory of Autonomic and Cardiovascular Pharmacology, Department of Pharmacology, Escola Paulista de Medicina (EPM), Universidade Federal de São Paulo (UNIFESP), São Paulo, SP, Brazil; Neuroscience Discipline, Escola Paulista de Medicina (EPM), Universidade Federal de São Paulo (UNIFESP), São Paulo, SP, Brazil; PostGraduate Program in Cardiology, Escola Paulista de Medicina (EPM), Universidade Federal de São Paulo (UNIFESP), São Paulo, SP, Brazil
| | - Marcelo Pires de Oliveira
- School of Medicine, Centro Universitário UNIFAS, União Metropolitana para a Educação e Cultura, Lauro de Freitas, BA, Brazil
| | - Erisvaldo Amarante Araújo
- Laboratory of Autonomic and Cardiovascular Pharmacology, Department of Pharmacology, Escola Paulista de Medicina (EPM), Universidade Federal de São Paulo (UNIFESP), São Paulo, SP, Brazil
| | - Henrique Ballalai Ferraz
- Neuroscience Discipline, Escola Paulista de Medicina (EPM), Universidade Federal de São Paulo (UNIFESP), São Paulo, SP, Brazil
| | | | - Efrain Olszewer
- Fundação de Apoio à Pesquisa e Estudo na Área de Saúde (FAPES), São Paulo, SP, Brazil
| | - Murched Omar Taha
- Department of Surgery, Escola Paulista de Medicina (EPM), Universidade Federal de São Paulo (UNIFESP), São Paulo, SP, Brazil
| | - Carla Alessandra Scorza
- Neuroscience Discipline, Escola Paulista de Medicina (EPM), Universidade Federal de São Paulo (UNIFESP), São Paulo, SP, Brazil
| | - Afonso Caricati-Neto
- Laboratory of Autonomic and Cardiovascular Pharmacology, Department of Pharmacology, Escola Paulista de Medicina (EPM), Universidade Federal de São Paulo (UNIFESP), São Paulo, SP, Brazil.
| | - Fúlvio Alexandre Scorza
- Neuroscience Discipline, Escola Paulista de Medicina (EPM), Universidade Federal de São Paulo (UNIFESP), São Paulo, SP, Brazil
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Kumar K, Singh N, Yadav HN, Maslov L, Jaggi AS. Endless Journey of Adenosine Signaling in Cardioprotective Mechanism of Conditioning Techniques: Clinical Evidence. Curr Cardiol Rev 2023; 19:56-71. [PMID: 37309766 PMCID: PMC10636797 DOI: 10.2174/1573403x19666230612112259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 04/10/2023] [Accepted: 05/11/2023] [Indexed: 06/14/2023] Open
Abstract
Myocardial ischemic injury is a primary cause of death among various cardiovascular disorders. The condition occurs due to an interrupted supply of blood and vital nutrients (necessary for normal cellular activities and viability) to the myocardium, eventually leading to damage. Restoration of blood supply to ischemic tissue is noted to cause even more lethal reperfusion injury. Various strategies, including some conditioning techniques, like preconditioning and postconditioning, have been developed to check the detrimental effects of reperfusion injury. Many endogenous substances have been proposed to act as initiators, mediators, and end effectors of these conditioning techniques. Substances, like adenosine, bradykinin, acetylcholine, angiotensin, norepinephrine, opioids, etc., have been reported to mediate cardioprotective activity. Among these agents, adenosine has been widely studied and suggested to have the most pronounced cardioprotective effects. The current review article highlights the role of adenosine signaling in the cardioprotective mechanism of conditioning techniques. The article also provides an insight into various clinical studies that substantiate the applicability of adenosine as a cardioprotective agent in myocardial reperfusion injury.
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Affiliation(s)
- Kuldeep Kumar
- Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala, Punjab 147002, India
| | - Nirmal Singh
- Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala, Punjab 147002, India
| | - Harlokesh Narayan Yadav
- Department of Pharmacology, All India Institute of Medical Sciences (AIIMS), New Delhi 110029, India
| | - Leonid Maslov
- Cardiology Research Institute, Tomsk National Research Medical Center of the Russian Academy of Science, Tomsk, Russia
| | - Amteshwar Singh Jaggi
- Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala, Punjab 147002, India
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Cardioprotective Effects of Physical Activity: Focus on Ischemia and Reperfusion. SERBIAN JOURNAL OF EXPERIMENTAL AND CLINICAL RESEARCH 2022. [DOI: 10.2478/sjecr-2022-0025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Abstract
This review aimed to revisit the old and introduce some of the new various cardioprotective effects of physical exercise, focusing on ischemia-reperfusion injury. A wealth of data shows that regular physical exercise is necessary to prevent cardiovascular diseases. In the last few years, a number of new training regimes, usually modified variations of high-intensity interval training (HIIT) and moderate-intensity continuous training (MICT) protocols, have been rising in popularity among people of all ages. Since exercising is not limited to only healthy people, our study emphasized the benefits of HIIT and MICT in preventing or mitigating cardiac ischemia-reperfusion injury. Different kinds of research are being performed, studying the various positive and side effects of these training regimes, all in hopes of finding the most optimal ones. So far, all of them have shown that exercising to any extent, even for a short period of time, is beneficial in one way or another, and outweighs the possible risks it might have. We also revisited some of the known molecular mechanisms responsible for many of the effects of physical exercise and introduced some new findings related to them. Lastly, we summarized and compared the benefits of different HIIT and MICT protocols to narrow down the search for the most efficient training method.
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Huang L, Chen Z, Chen R, Lin L, Ren L, Zhang M, Liu L. Increased fatty acid metabolism attenuates cardiac resistance to β-adrenoceptor activation via mitochondrial reactive oxygen species: A potential mechanism of hypoglycemia-induced myocardial injury in diabetes. Redox Biol 2022; 52:102320. [PMID: 35462320 PMCID: PMC9046456 DOI: 10.1016/j.redox.2022.102320] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Accepted: 04/18/2022] [Indexed: 01/18/2023] Open
Abstract
The mechanism of severe hypoglycemia (SH)-induced cardiovascular disease in diabetes remains unknown. Our previous study found that SH inhibits cardiac function and lipid metabolism in diabetic mice. Conversely, in nondiabetic mice, SH does not induce cardiac dysfunction but promotes cardiac lipid metabolism. This study aims to clarify the effect of increased fatty acid metabolism on the resistance of cardiomyocytes to β-adrenoceptor activation during hypoglycemia in diabetes. Results revealed that cardiomyocytes with enhanced lipid metabolism were more vulnerable to damage due to β-adrenoceptor activation, which presented as decreased cell viability, disorder of mitochondrial structure, dissipation of mitochondrial membrane potential, dysfunction of mitochondrial oxidative phosphorylation, nonapoptotic damage, and accumulation of ROS and calcium from mitochondria to cytoplasm, all of which were partially reversed by mitochondrial antioxidant Mito-TEMPO. The SH-induced cardiac dysfunction, and reduction of myocardial energy metabolism in diabetic mice were rescued by Mito-TEMPO. Our findings indicate that high fatty acid metabolism crippled cardiac resistance to β-adrenoceptor hyperactivation, with mitochondrial ROS playing a pivotal role in this process. Reducing mitochondrial ROS in diabetes could disrupt this synergistic effect and prevent poor cardiac outcomes caused by SH. Fatty acid metabolism lowers cardiac resistance to β-adrenoceptor activation via mtROS. Pretreatment with mitochondrial antioxidants prevents SH-induced cardiac outcomes. This synergistic effect might explicate the progression of other CV diseases.
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Affiliation(s)
- Lishan Huang
- Department of Endocrinology, Fujian Medical University Union Hospital, Fuzhou, China
| | - Zhou Chen
- School of Pharmacy, Fujian Medical University, Fuzhou, China
| | - Ruiyu Chen
- School of Pharmacy, Fujian Medical University, Fuzhou, China
| | - Lu Lin
- Department of Endocrinology, Fujian Medical University Union Hospital, Fuzhou, China
| | - Lingjia Ren
- Department of Endocrinology, Fujian Medical University Union Hospital, Fuzhou, China
| | - Meilian Zhang
- Department of Ultrasound, Fujian Province Hospital for Women and Children, Fuzhou, China
| | - Libin Liu
- Department of Endocrinology, Fujian Medical University Union Hospital, Fuzhou, China.
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Bai S, Wang X, Wu H, Chen T, Li X, Zhang L, Li X, Er L, Du R. Cardioprotective effect of anisodamine against ischemia/reperfusion injury through the mitochondrial ATP-sensitive potassium channel. Eur J Pharmacol 2021; 901:174095. [PMID: 33862063 DOI: 10.1016/j.ejphar.2021.174095] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 03/31/2021] [Accepted: 04/06/2021] [Indexed: 11/15/2022]
Abstract
Previous clinical studies have shown that anisodamine could improve no-reflow phenomenon and prevent reperfusion arrhythmias, but whether this protective effect is related to the antagonism of the M-type cholinergic receptor or other potential mechanisms is uncertain. The aim of the present study was to investigate the role of the mitochondrial ATP-sensitive potassium channel (mitoK ATP ) in cardioprotective effect of anisodamine against ischemia/reperfusion injury. Anisodamine and 5- hydroxydecanoic acid were used to explore the relationship between anisodamine and mitoK ATP . Using a Langendorff isolated heart ischemia/reperfusion injury model, hemodynamic parameters and reperfusion ventricular arrhythmia were evaluated; in addition, changes in myocardial infarct size, cTnI from coronary effluent and myocardial ultrastructure, as well as ATP, MDA and SOD in myocardial tissues, were detected. In the hypoxia/reoxygenation injury model of neonatal rat cardiomyocyte, cTnI release in the culture medium and levels of ATP, MDA and SOD in cardiomyocytes and mitochondrial membrane potential, were analyzed. Overall, anisodamine could significantly improve the hemodynamic indexes of isolated rat heart injured by ischemia/reperfusion, reduce the occurrence of ventricular reperfusion arrhythmia and myocardial infarction area, and improve the ultrastructural damage of myocardium and mitochondria. The in vitro results demonstrated that anisodamine could improve mitochondrial energy metabolism, reduce oxidative stress and stabilize mitochondrial membrane potential. The cardioprotective effects were significantly inhibited by 5-hydroxydecanoic acid. In conclusion, this study suggests that the opening of mitoK ATP could play an important role in the protective effect of anisodamine against myocardial ischemia/reperfusion injury.
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Affiliation(s)
- Shiru Bai
- Department of Cardiology, Hebei General Hospital, Shijiazhuang, Hebei, 050000, China
| | - Xuechao Wang
- Department of Cardiology, Hebei General Hospital, Shijiazhuang, Hebei, 050000, China
| | - Haibo Wu
- Department of Cardiology, Hebei General Hospital, Shijiazhuang, Hebei, 050000, China
| | - Tianlei Chen
- Department of Cardiology, Hebei General Hospital, Shijiazhuang, Hebei, 050000, China
| | - Xinning Li
- Department of Cardiology, Hebei General Hospital, Shijiazhuang, Hebei, 050000, China
| | - Lina Zhang
- Department of Cardiology, Hebei General Hospital, Shijiazhuang, Hebei, 050000, China
| | - Xiangming Li
- Department of Cardiology, Hebei General Hospital, Shijiazhuang, Hebei, 050000, China
| | - Lu Er
- Department of Cardiology, Hebei General Hospital, Shijiazhuang, Hebei, 050000, China
| | - Rongpin Du
- Department of Cardiology, Hebei General Hospital, Shijiazhuang, Hebei, 050000, China.
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Pansani AP, Ghazale PP, Dos Santos EG, Dos Santos Borges K, Gomes KP, Lacerda IS, Castro CH, Mendes EP, Dos Santos FCA, Biancardi MF, Nejm MB, Dogini DB, Rabelo LA, Nunes-Souza V, Scorza FA, Colugnati DB. The number and periodicity of seizures induce cardiac remodeling and changes in micro-RNA expression in rats submitted to electric amygdala kindling model of epilepsy. Epilepsy Behav 2021; 116:107784. [PMID: 33548915 DOI: 10.1016/j.yebeh.2021.107784] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 01/03/2021] [Accepted: 01/03/2021] [Indexed: 12/20/2022]
Abstract
Generalized tonic-clonic seizures (GTCS) are the main risk factor for sudden unexpected death in epilepsy (SUDEP). Also, among the several mechanisms underlying SUDEP there is the cardiac dysfunction. So, we aimed to evaluate the impact of the number of seizures on heart function and morphology in rats with epilepsy. Rats were randomized into three groups: Sham (without epilepsy), 5 S, and 10 S groups, referred as rats with epilepsy with a total of 5 or 10 GTCS, respectively. Epilepsy was induced by electrical amygdala kindling. The ventricular function was analyzed by the Langendorff technique and challenged by ischemia/reperfusion protocol. Cardiac fibrosis and hypertrophy were analyzed by histology. We also analyzed cardiac metalloproteinases (MMP2 and MMP9), ERK 1/2 and phosphorylated ERK1/2 (P-ERK) by western blot; microRNA-21 and -320 by RT-PCR; and oxidative stress (TBARS, catalase activity and nitrite) by biochemical analysis. Only the 5S group presented decreased values of ventricular function at before ischemia/reperfusion (baseline): intraventricular systolic pressure, developed intraventricular pressure, positive and negative dP/dt. During ischemia/reperfusion protocol, the variation of the ventricular function did not differ among groups. Both 5S and 10S groups had increased cardiomyocyte hypertrophy and fibrosis compared to Sham, but in the 5S group, these alterations were higher than in the 10S group. The 5S group increased in microRNA-21 and decreased in microRNA-320 expression compared to Sham and the 10S group. The 10S group increased in MMP9 and decreased in P-ERK/ERK expression, and increased in nitrite content compared to both Sham and the 5S group. Therefore, seizures impair cardiac function and morphology, probably through microRNA modulation. The continuation of seizures seems to exert a preconditioning-like stimulus that fails to compensate the cardiac tissue alteration.
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Affiliation(s)
- Aline Priscila Pansani
- Department of Physiological Sciences, Institute of Biological Sciences, Federal University of Goiás, Goiânia, Brazil.
| | - Poliana Peres Ghazale
- Department of Neurology and Neurosurgery, Federal University of São Paulo, São Paulo, Brazil
| | - Emilly Gomes Dos Santos
- Department of Physiological Sciences, Institute of Biological Sciences, Federal University of Goiás, Goiânia, Brazil
| | - Kiscilla Dos Santos Borges
- Department of Physiological Sciences, Institute of Biological Sciences, Federal University of Goiás, Goiânia, Brazil
| | - Karina Pereira Gomes
- Department of Physiological Sciences, Institute of Biological Sciences, Federal University of Goiás, Goiânia, Brazil
| | - Ismaley Santos Lacerda
- Department of Physiological Sciences, Institute of Biological Sciences, Federal University of Goiás, Goiânia, Brazil
| | - Carlos Henrique Castro
- Department of Physiological Sciences, Institute of Biological Sciences, Federal University of Goiás, Goiânia, Brazil
| | - Elizabeth Pereira Mendes
- Department of Physiological Sciences, Institute of Biological Sciences, Federal University of Goiás, Goiânia, Brazil
| | | | | | - Mariana Bocca Nejm
- Department of Neurology and Neurosurgery, Federal University of São Paulo, São Paulo, Brazil
| | - Danyella Barbosa Dogini
- Department of Medical Genetics and Genomic Medicine, School of Medical Sciences, State University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - Luiza Antas Rabelo
- Department of Physiology, Institute of Biological and Health Sciences, Federal University of Alagoas, Maceió, Alagoas, Brazil
| | - Valéria Nunes-Souza
- Department of Physiological and Pharmacology Sciences, Institute of Biological Sciences, Federal University of Pernambuco, Recife, Pernambuco, Brazil
| | - Fulvio Alexandre Scorza
- Department of Neurology and Neurosurgery, Federal University of São Paulo, São Paulo, Brazil
| | - Diego Basile Colugnati
- Department of Physiological Sciences, Institute of Biological Sciences, Federal University of Goiás, Goiânia, Brazil
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Long-chain free fatty acids inhibit ischaemic preconditioning of the isolated rat heart. Mol Cell Biochem 2020; 473:111-132. [PMID: 32602016 DOI: 10.1007/s11010-020-03812-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Accepted: 06/18/2020] [Indexed: 02/07/2023]
Abstract
We recently reported that non-preconditioned hearts from diet-induced obese rats showed, compared to controls, a significant reduction in infarct size after ischaemia/reperfusion, whilst ischaemic preconditioning was without effect. In view of the high circulating FFA concentration in diet rats, the aims of the present study were to: (i) compare the effect of palmitate on the preconditioning potential of hearts from age-matched controls and diet rats (ii) elucidate the effects of substrate manipulation on ischaemic preconditioning. Substrate manipulation was done with dichloroacetate (DCA), which enhances glucose oxidation and decreases fatty acid oxidation. Isolated hearts from diet rats, age-matched controls or young rats, were perfused in the working mode using the following substrates: glucose (10 mM); palmitate (1.2 mM)/3% albumin) + glucose (10 mM) (HiFA + G); palmitate (1.2 mM/3% albumin) (HiFA); palmitate (0.4 mM/3% albumin) + glucose(10 mM) (LoFA + G); palmitate (0.4 mM/3% albumin) (LoFA). Hearts were preconditioned with 3 × 5 min ischaemia/reperfusion, followed by 35 min coronary ligation and 60 min reperfusion for infarct size determination (tetrazolium method) or 20 min global ischaemia/10 or 30 min reperfusion for Western blotting (ERKp44/42, PKB/Akt). Preconditioning of glucose-perfused hearts from age-matched control (but not diet) rats reduced infarct size, activated ERKp44/42 and PKB/Akt and improved functional recovery during reperfusion (ii) perfusion with HiFA + G abolished preconditioning and activation of ERKp44/42 (iii) DCA pretreatment largely reversed the harmful effects of HiFA. Hearts from non-preconditioned diet rats exhibited smaller infarcts, but could not be preconditioned, regardless of the substrate. Similar results were obtained upon substrate manipulation of hearts from young rats. Abolishment of preconditioning in diet rats may be due to altered myocardial metabolic patterns resulting from changes in circulating FA. The harmful effects of HiFA were attenuated by stimulation of glycolysis and inhibition of FA oxidation.
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Feliu C, Peyret H, Brassart-Pasco S, Oszust F, Poitevin G, Nguyen P, Millart H, Djerada Z. Ticagrelor Prevents Endothelial Cell Apoptosis through the Adenosine Signalling Pathway in the Early Stages of Hypoxia. Biomolecules 2020; 10:biom10050740. [PMID: 32397519 PMCID: PMC7277469 DOI: 10.3390/biom10050740] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 05/05/2020] [Accepted: 05/07/2020] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Several studies have reported the beneficial effects of anti-platelet drugs in cardioprotection against ischaemia-reperfusion injuries. To date, no studies have focused on the indirect cytoprotective effects of ticagrelor via adenosine receptor on the endothelium. METHOD By evaluating cell viability and cleaved caspase 3 expression, we validated a model of endothelial cell apoptosis induced by hypoxia. In hypoxic endothelial cells treated with ticagrelor, we quantified the extracellular concentration of adenosine, and then we studied the involvement of adenosine pathways in the cytoprotective effect of ticagrelor. RESULTS Our results showed that 10 µM ticagrelor induced an anti-apoptotic effect in our model associated with an increase of extracellular adenosine concentration. Similar experiments were conducted with cangrelor but did not demonstrate an anti-apoptotic effect. We also found that A2B and A3 adenosine receptors were involved in the anti-apoptotic effect of ticagrelor in endothelial cells exposed to 2 h of hypoxia stress. CONCLUSION we described an endothelial cytoprotective mechanism of ticagrelor against hypoxia stress, independent of blood elements. We highlighted a mechanism triggered mainly by the increased extracellular bioavailability of adenosine, which activates A2B and A3 receptors on the endothelium.
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Affiliation(s)
- Catherine Feliu
- Department of Pharmacology, Hémostase et Remodelage Vasculaire post-Ischémie (HERVI) E.A.3801, SFR CAP-santé, Reims University Hospital, 51, rue Cognacq-Jay, 51095 Reims CEDEX, France; (C.F.); (H.P.); (F.O.); (H.M.)
| | - Hélène Peyret
- Department of Pharmacology, Hémostase et Remodelage Vasculaire post-Ischémie (HERVI) E.A.3801, SFR CAP-santé, Reims University Hospital, 51, rue Cognacq-Jay, 51095 Reims CEDEX, France; (C.F.); (H.P.); (F.O.); (H.M.)
| | - Sylvie Brassart-Pasco
- UMR CNRS/URCA 7369, Matrice Extracellulaire et Dynamique Cellulaire (MEDyC), Reims University Hospital, SFR CAP-santé, 51, rue Cognacq-Jay, 51095 Reims CEDEX, France;
| | - Floriane Oszust
- Department of Pharmacology, Hémostase et Remodelage Vasculaire post-Ischémie (HERVI) E.A.3801, SFR CAP-santé, Reims University Hospital, 51, rue Cognacq-Jay, 51095 Reims CEDEX, France; (C.F.); (H.P.); (F.O.); (H.M.)
| | - Gaël Poitevin
- Laboratory of Hematology, E.A.3801, SFR CAP-santé, Reims University Hospital, 51, rue Cognacq-Jay, 51095 Reims CEDEX, France; (G.P.); (P.N.)
| | - Philippe Nguyen
- Laboratory of Hematology, E.A.3801, SFR CAP-santé, Reims University Hospital, 51, rue Cognacq-Jay, 51095 Reims CEDEX, France; (G.P.); (P.N.)
| | - Hervé Millart
- Department of Pharmacology, Hémostase et Remodelage Vasculaire post-Ischémie (HERVI) E.A.3801, SFR CAP-santé, Reims University Hospital, 51, rue Cognacq-Jay, 51095 Reims CEDEX, France; (C.F.); (H.P.); (F.O.); (H.M.)
| | - Zoubir Djerada
- Department of Pharmacology, Hémostase et Remodelage Vasculaire post-Ischémie (HERVI) E.A.3801, SFR CAP-santé, Reims University Hospital, 51, rue Cognacq-Jay, 51095 Reims CEDEX, France; (C.F.); (H.P.); (F.O.); (H.M.)
- Correspondence: ; Tel.: +33-3-26-83-27-82; Fax: +33-3-26-78-84-56
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Salie R, Alsalhin AKH, Marais E, Lochner A. Cardioprotective Effects of Beta3-Adrenergic Receptor (β3-AR) Pre-, Per-, and Post-treatment in Ischemia-Reperfusion. Cardiovasc Drugs Ther 2020; 33:163-177. [PMID: 30729348 DOI: 10.1007/s10557-019-06861-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The β3-AR (beta3-adrenergic receptor) is resistant to short-term agonist-promoted desensitization and delivers a constant intracellular signal, making this receptor a potential target in acute myocardial infarction (AMI). AIM To investigate whether selective modulation of β3-AR prior to or during ischemia and/or reperfusion may be cardioprotective. METHODS Isolated perfused rat hearts were exposed to 35-min regional ischemia (RI) and 60-min reperfusion. The β3-AR agonist (BRL37344, 1 μM) or antagonist (SR59230A, 0.1 μM) was applied: (i) before RI (PreT) or (ii) last 10 min of RI (PerT) or (iii) onset of reperfusion (PostT) or (iv) during both PerT+PostT. Nitric oxide (NO) involvement was assessed, using the NOS inhibitor, L-NAME (50 μM). Endpoints were functional recovery, infarct size (IS), cGMP levels, and Western blot analysis of eNOS, ERKp44/p42, PKB/Akt, and glycogen synthase kinase-3β (GSK-3β). RESULTS Selective treatment with BRL significantly reduced IS. L-NAME abolished BRL-mediated cardioprotection. BRL (PreT) and BRL (PerT) significantly increased cGMP levels (which were reduced by L-NAME) and PKB/Akt phosphorylation. BRL (PostT) produced significantly increased cGMP levels, PKB/Akt, and ERKp44/p42 phosphorylation. BRL (PerT+PostT) caused significant eNOS, PKB/Akt, ERKp44/p42, and GSK-3β phosphorylation. CONCLUSION β3-AR activation by BRL37344 induced significant cardioprotection regardless of the experimental protocol. However, the pattern of intracellular signaling with each BRL treatment differed to some degree and suggests the involvement of cGMP, eNOS, ERK, GSK-3β, and particularly PKB/Akt activation. The data also suggest that clinical application of β3-AR stimulation should preferably be incorporated during late ischemia or/and early reperfusion.
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Affiliation(s)
- Ruduwaan Salie
- Biomedical Research and Innovation Platform, South African Medical Research Council, Building D, Medicina, Francie van Zijl Drive, Parow Valley, Cape Town, Western Cape, South Africa.
- Faculty of Medicine and Health Sciences, Division of Medical Physiology, University of Stellenbosch, PO Box 19063, Cape Town, South Africa.
| | - Aisha Khlani Hassan Alsalhin
- Faculty of Medicine and Health Sciences, Division of Medical Physiology, University of Stellenbosch, PO Box 19063, Cape Town, South Africa
| | - Erna Marais
- Faculty of Medicine and Health Sciences, Division of Medical Physiology, University of Stellenbosch, PO Box 19063, Cape Town, South Africa
| | - Amanda Lochner
- Faculty of Medicine and Health Sciences, Division of Medical Physiology, University of Stellenbosch, PO Box 19063, Cape Town, South Africa
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Feliu C, Peyret H, Poitevin G, Cazaubon Y, Oszust F, Nguyen P, Millart H, Djerada Z. Complementary Role of P2 and Adenosine Receptors in ATP Induced-Anti-Apoptotic Effects Against Hypoxic Injury of HUVECs. Int J Mol Sci 2019; 20:ijms20061446. [PMID: 30909368 PMCID: PMC6470483 DOI: 10.3390/ijms20061446] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 03/16/2019] [Accepted: 03/20/2019] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Vascular endothelial injury during ischemia generates apoptotic cell death and precedes apoptosis of underlying tissues. We aimed at studying the role of extracellular adenosine triphosphate (ATP) on endothelial cells protection against hypoxia injury. METHODS In a hypoxic model on endothelial cells, we quantified the extracellular concentration of ATP and adenosine. The expression of mRNA (ectonucleotidases, adenosine, and P2 receptors) was measured. Apoptosis was evaluated by the expression of cleaved caspase 3. The involvement of P2 and adenosine receptors and signaling pathways was investigated using selective inhibitors. RESULTS Hypoxic stress induced a significant increase in extracellular ATP and adenosine. After a 2-h hypoxic injury, an increase of cleaved caspase 3 was observed. ATP anti-apoptotic effect was prevented by suramin, pyridoxalphosphate-6-azophenyl-2',4'-disulfonic acid (PPADS), and CGS15943, as well as by selective A2A, A2B, and A3 receptor antagonists. P2 receptor-mediated anti-apoptotic effect of ATP involved phosphoinositide 3-kinase (PI3K), extracellular signal-regulated kinases (ERK1/2), mitoKATP, and nitric oxide synthase (NOS) pathways whereas adenosine receptor-mediated anti-apoptotic effect involved ERK1/2, protein kinase A (PKA), and NOS. CONCLUSIONS These results suggest a complementary role of P2 and adenosine receptors in ATP-induced protective effects against hypoxia injury of endothelial. This could be considered therapeutic targets to limit the development of ischemic injury of organs such as heart, brain, and kidney.
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Affiliation(s)
- Catherine Feliu
- Department of Pharmacology, E.A.3801, SFR CAP-santé, Reims University Hospital, 51, rue Cognacq-Jay, 51095 Reims CEDEX, France.
| | - Hélène Peyret
- Department of Pharmacology, E.A.3801, SFR CAP-santé, Reims University Hospital, 51, rue Cognacq-Jay, 51095 Reims CEDEX, France.
| | - Gael Poitevin
- Laboratory of Hematology, E.A.3801, SFR CAP-santé, Reims University Hospital, 51, rue Cognacq-Jay, 51095 Reims CEDEX, France.
| | - Yoann Cazaubon
- Department of Pharmacology, E.A.3801, SFR CAP-santé, Reims University Hospital, 51, rue Cognacq-Jay, 51095 Reims CEDEX, France.
| | - Floriane Oszust
- Department of Pharmacology, E.A.3801, SFR CAP-santé, Reims University Hospital, 51, rue Cognacq-Jay, 51095 Reims CEDEX, France.
| | - Philippe Nguyen
- Laboratory of Hematology, E.A.3801, SFR CAP-santé, Reims University Hospital, 51, rue Cognacq-Jay, 51095 Reims CEDEX, France.
| | - Hervé Millart
- Department of Pharmacology, E.A.3801, SFR CAP-santé, Reims University Hospital, 51, rue Cognacq-Jay, 51095 Reims CEDEX, France.
| | - Zoubir Djerada
- Department of Pharmacology, E.A.3801, SFR CAP-santé, Reims University Hospital, 51, rue Cognacq-Jay, 51095 Reims CEDEX, France.
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See Hoe LE, Foster SR, Wendt L, Patel HH, Headrick JP, Peart JN. Regulation of the β-Adrenergic Receptor Signaling Pathway in Sustained Ligand-Activated Preconditioning. J Pharmacol Exp Ther 2019; 369:37-46. [DOI: 10.1124/jpet.118.251660] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Accepted: 01/10/2019] [Indexed: 12/12/2022] Open
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Ren X, Roessler AE, Lynch TL, Haar L, Mallick F, Lui Y, Tranter M, Ren MH, Xie WR, Fan GC, Zhang JM, Kranias EG, Anjak A, Koch S, Jiang M, Miao Q, Wang Y, Cohen A, Rubinstein J, Weintraub NL, Jones WK. Cardioprotection via the skin: nociceptor-induced conditioning against cardiac MI in the NIC of time. Am J Physiol Heart Circ Physiol 2018; 316:H543-H553. [PMID: 30575436 DOI: 10.1152/ajpheart.00094.2018] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Timely reperfusion is still the most effective approach to limit infarct size in humans. Yet, despite advances in care and reduction in door-to-balloon times, nearly 25% of patients develop heart failure postmyocardial infarction, with its attendant morbidity and mortality. We previously showed that cardioprotection results from a skin incision through the umbilicus in a murine model of myocardial infarction. In the present study, we show that an electrical stimulus or topical capsaicin applied to the skin in the same region induces significantly reduced infarct size in a murine model. We define this class of phenomena as nociceptor-induced conditioning (NIC) based on the peripheral nerve mechanism of initiation. We show that NIC is effective both as a preconditioning and postconditioning remote stimulus, reducing infarct size by 86% and 80%, respectively. NIC is induced via activation of skin C-fiber nerves. Interestingly, the skin region that activates NIC is limited to the anterior of the T9-T10 vertebral region of the abdomen. Cardioprotection after NIC requires the integrity of the spinal cord from the region of stimulation to the thoracic vertebral region of the origin of the cardiac nerves but does not require that the cord be intact in the cervical region. Thus, we show that NIC is a reflex and not a central nervous system-mediated effect. The mechanism involves bradykinin 2 receptor activity and activation of PKC, specifically, PKC-α. The similarity of the neuroanatomy and conservation of the effectors of cardioprotection supports that NIC may be translatable to humans as a nontraumatic and practical adjunct therapy against ischemic disease. NEW & NOTEWORTHY This study shows that an electrical stimulus to skin sensory nerves elicits a very powerful cardioprotection against myocardial infarction. This stimulus works by a neurogenic mechanism similar to that previously elucidated for remote cardioprotection of trauma. Nociceptor-induced conditioning is equally potent when applied before ischemia or at reperfusion and has great potential clinically.
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Affiliation(s)
- Xiaoping Ren
- Department of Molecular Pharmacology and Therapeutics, Loyola University Chicago, Mawood, Illinois
| | - Anne E Roessler
- Department of Molecular Pharmacology and Therapeutics, Loyola University Chicago, Mawood, Illinois
| | - Thomas L Lynch
- Department of Molecular Pharmacology and Therapeutics, Loyola University Chicago, Mawood, Illinois
| | - Lauren Haar
- Department of Molecular Pharmacology and Therapeutics, Loyola University Chicago, Mawood, Illinois
| | - Faryal Mallick
- Division of Cardiology, Department of Medicine, University of Cincinnati College of Medicine , Cincinnati, Ohio
| | - Yong Lui
- Division of Cardiology, Department of Medicine, University of Cincinnati College of Medicine , Cincinnati, Ohio
| | - Michael Tranter
- Division of Cardiology, Department of Medicine, University of Cincinnati College of Medicine , Cincinnati, Ohio
| | - Michelle Huan Ren
- Division of Cardiology, Department of Medicine, University of Cincinnati College of Medicine , Cincinnati, Ohio
| | - Wen Rui Xie
- Department of Anesthesiology and Department of Medicine, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Guo-Chang Fan
- Department of Pharmacology, University of Cincinnati , Cincinnati, Ohio
| | - Jun-Ming Zhang
- Department of Anesthesiology and Department of Medicine, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | | | - Ahmad Anjak
- Division of Cardiology, Department of Medicine, University of Cincinnati College of Medicine , Cincinnati, Ohio
| | - Sheryl Koch
- Division of Cardiology, Department of Medicine, University of Cincinnati College of Medicine , Cincinnati, Ohio
| | - Min Jiang
- Division of Cardiology, Department of Medicine, University of Cincinnati College of Medicine , Cincinnati, Ohio
| | - Qing Miao
- Department of Molecular Pharmacology and Therapeutics, Loyola University Chicago, Mawood, Illinois
| | - Yang Wang
- Department of Molecular Pharmacology and Therapeutics, Loyola University Chicago, Mawood, Illinois
| | - Albert Cohen
- Department of Mathematics, Michigan State University , East Lansing, Michigan
| | - Jack Rubinstein
- Division of Cardiology, Department of Medicine, University of Cincinnati College of Medicine , Cincinnati, Ohio
| | - Neal L Weintraub
- Division of Cardiology, Georgia Regents University, Augusta, Geogia
| | - W Keith Jones
- Department of Molecular Pharmacology and Therapeutics, Loyola University Chicago, Mawood, Illinois
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16
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Mallet RT, Manukhina EB, Ruelas SS, Caffrey JL, Downey HF. Cardioprotection by intermittent hypoxia conditioning: evidence, mechanisms, and therapeutic potential. Am J Physiol Heart Circ Physiol 2018; 315:H216-H232. [PMID: 29652543 DOI: 10.1152/ajpheart.00060.2018] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The calibrated application of limited-duration, cyclic, moderately intense hypoxia-reoxygenation increases cardiac resistance to ischemia-reperfusion stress. These intermittent hypoxic conditioning (IHC) programs consistently produce striking reductions in myocardial infarction and ventricular tachyarrhythmias after coronary artery occlusion and reperfusion and, in many cases, improve contractile function and coronary blood flow. These IHC protocols are fundamentally different from those used to simulate sleep apnea, a recognized cardiovascular risk factor. In clinical studies, IHC improved exercise capacity and decreased arrhythmias in patients with coronary artery or pulmonary disease and produced robust, persistent, antihypertensive effects in patients with essential hypertension. The protection afforded by IHC develops gradually and depends on β-adrenergic, δ-opioidergic, and reactive oxygen-nitrogen signaling pathways that use protein kinases and adaptive transcription factors. In summary, adaptation to intermittent hypoxia offers a practical, largely unrecognized means of protecting myocardium from impending ischemia. The myocardial and perhaps broader systemic protection provided by IHC clearly merits further evaluation as a discrete intervention and as a potential complement to conventional pharmaceutical and surgical interventions.
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Affiliation(s)
- Robert T Mallet
- Department of Integrative Physiology and Anatomy, University of North Texas Health Science Center , Fort Worth, Texas
| | - Eugenia B Manukhina
- Department of Integrative Physiology and Anatomy, University of North Texas Health Science Center , Fort Worth, Texas.,Institute of General Pathology and Pathophysiology, Russian Academy of Medical Sciences , Moscow , Russian Federation.,School of Medical Biology South Ural State University , Chelyabinsk , Russian Federation
| | - Steven Shea Ruelas
- Department of Integrative Physiology and Anatomy, University of North Texas Health Science Center , Fort Worth, Texas
| | - James L Caffrey
- Department of Integrative Physiology and Anatomy, University of North Texas Health Science Center , Fort Worth, Texas
| | - H Fred Downey
- Department of Integrative Physiology and Anatomy, University of North Texas Health Science Center , Fort Worth, Texas.,School of Medical Biology South Ural State University , Chelyabinsk , Russian Federation
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Abstract
Rapid admission and acute interventional treatment combined with modern antithrombotic pharmacologic therapy have improved outcomes in patients with ST elevation myocardial infarction. The next major target to further advance outcomes needs to address ischemia-reperfusion injury, which may contribute significantly to the final infarct size and hence mortality and postinfarction heart failure. Mechanical conditioning strategies including local and remote ischemic pre-, per-, and postconditioning have demonstrated consistent cardioprotective capacities in experimental models of acute ischemia-reperfusion injury. Their translation to the clinical scenario has been challenging. At present, the most promising mechanical protection strategy of the heart seems to be remote ischemic conditioning, which increases myocardial salvage beyond acute reperfusion therapy. An additional aspect that has gained recent focus is the potential of extended conditioning strategies to improve physical rehabilitation not only after an acute ischemia-reperfusion event such as acute myocardial infarction and cardiac surgery but also in patients with heart failure. Experimental and preliminary clinical evidence suggests that remote ischemic conditioning may modify cardiac remodeling and additionally enhance skeletal muscle strength therapy to prevent muscle waste, known as an inherent component of a postoperative period and in heart failure. Blood flow restriction exercise and enhanced external counterpulsation may represent cardioprotective corollaries. Combined with exercise, remote ischemic conditioning or, alternatively, blood flow restriction exercise may be of aid in optimizing physical rehabilitation in populations that are not able to perform exercise practice at intensity levels required to promote optimal outcomes.
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Affiliation(s)
- Hans Erik Bøtker
- Department of Cardiology, Aarhus University Hospital , Aarhus , Denmark
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18
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Salie R, Lochner A, Loubser DJ. The significance of the washout period in preconditioning. Cardiovasc Ther 2018; 35. [PMID: 28118517 DOI: 10.1111/1755-5922.12252] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Revised: 01/16/2017] [Accepted: 01/19/2017] [Indexed: 01/08/2023] Open
Abstract
AIMS Exposure of the heart to 5 min global ischaemia (I) followed by 5 min reperfusion (R) (ischaemic preconditioning, IPC) or transient Beta 2-adrenergic receptor (B2-AR) stimulation with formoterol (B2PC), followed by 5 min washout before index ischaemia, elicits cardioprotection against subsequent sustained ischaemia. As the washout period during preconditioning is essential for subsequent cardioprotection, the aim of this study was to investigate the involvement of protein kinase A (PKA), reactive oxygen species (ROS), extracellular signal-regulated kinase (ERK), PKB/Akt, p38 MAPK and c-jun N-terminal kinase (JNK) during this period. METHODS Isolated perfused rat hearts were exposed to IPC (1x5min I / 5min R) or B2PC (1x5min Formoterol / 5min R) followed by 35 min regional ischaemia and reperfusion. Inhibitors for PKA (Rp-8CPT-cAMP)(16μM), ROS (NAC)(300μM), PKB (A-6730)(2.5μM), ERKp44/p42 (PD98,059)(10μM), p38MAPK (SB239063)(1μM) or JNK (SP600125)(10μM) were administered for 5 minutes before 5 minutes global ischaemia / 5 min reperfusion (IPC) or for 5 minutes before and during administration of formoterol (B2PC) prior to regional ischaemia, reperfusion and infarct size (IS) determination. Hearts exposed to B2PC or IPC were freeze-clamped during the washout period for Western blots analysis of PKB, ERKp44/p42, p38MAPK and JNK. RESULTS The PKA blocker abolished both B2PC and IPC, while NAC significantly increased IS of IPC but not of B2PC. Western blot analysis showed that ERKp44/p42 and PKB activation during washout after B2PC compared to IPC was significantly increased. IPC compared to B2PC showed significant p38MAPK and JNKp54/p46 activation. PKB and ERK inhibition or p38MAPK and JNK inhibition during the washout period of B2PC and IPC respectively, significantly increased IS. CONCLUSION PKA activation before regional ischaemia is a prerequisite for cardioprotection in both B2PC and IPC. However, ROS was crucial only in IPC. Kinase activation during the washout phase of IPC and B2PC, albeit different, affords the same cardioprotective response.
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Affiliation(s)
- Ruduwaan Salie
- Biomedical Research and Innovation Platform, South African Medical Research Council, Parow Valley, Cape Town, South Africa.,Faculty of Medicine and Health Sciences, Division of Medical Physiology, University of Stellenbosch, Tygerberg, Cape Town, South Africa
| | - Amanda Lochner
- Faculty of Medicine and Health Sciences, Division of Medical Physiology, University of Stellenbosch, Tygerberg, Cape Town, South Africa
| | - Dirk J Loubser
- Faculty of Medicine and Health Sciences, Division of Medical Physiology, University of Stellenbosch, Tygerberg, Cape Town, South Africa
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Vyas FS, Nelson CP, Dickenson JM. Role of transglutaminase 2 in A 1 adenosine receptor- and β 2-adrenoceptor-mediated pharmacological pre- and post-conditioning against hypoxia-reoxygenation-induced cell death in H9c2 cells. Eur J Pharmacol 2017; 819:144-160. [PMID: 29208472 DOI: 10.1016/j.ejphar.2017.11.049] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 11/20/2017] [Accepted: 11/30/2017] [Indexed: 02/07/2023]
Abstract
Pharmacologically-induced pre- and post-conditioning represent attractive therapeutic strategies to reduce ischaemia/reperfusion injury during cardiac surgery and following myocardial infarction. We have previously reported that transglutaminase 2 (TG2) activity is modulated by the A1 adenosine receptor and β2-adrenoceptor in H9c2 cardiomyoblasts. The primary aim of this study was to determine the role of TG2 in A1 adenosine receptor and β2-adrenoceptor-induced pharmacological pre- and post-conditioning in the H9c2 cells. H9c2 cells were exposed to 8h hypoxia (1% O2) followed by 18h reoxygenation, after which cell viability was assessed by monitoring mitochondrial reduction of MTT, lactate dehydrogenase release and caspase-3 activation. N6-cyclopentyladenosine (CPA; A1 adenosine receptor agonist), formoterol (β2-adrenoceptor agonist) or isoprenaline (non-selective β-adrenoceptor agonist) were added before hypoxia/reoxygenation (pre-conditioning) or at the start of reoxygenation following hypoxia (post-conditioning). Pharmacological pre- and post-conditioning with CPA and isoprenaline significantly reduced hypoxia/reoxygenation-induced cell death. In contrast, formoterol did not elicit protection. Pre-treatment with pertussis toxin (Gi/o-protein inhibitor), DPCPX (A1 adenosine receptor antagonist) or TG2 inhibitors (Z-DON and R283) attenuated the A1 adenosine receptor-induced pharmacological pre- and post-conditioning. Similarly, pertussis toxin, ICI 118,551 (β2-adrenoceptor antagonist) or TG2 inhibition attenuated the isoprenaline-induced cell survival. Knockdown of TG2 using small interfering RNA (siRNA) attenuated CPA and isoprenaline-induced pharmacological pre- and post-conditioning. Finally, proteomic analysis following isoprenaline treatment identified known (e.g. protein S100-A6) and novel (e.g. adenine phosphoribosyltransferase) protein substrates for TG2. These results have shown that A1 adenosine receptor and β2-adrenoceptor-induced protection against simulated hypoxia/reoxygenation occurs in a TG2 and Gi/o-protein dependent manner in H9c2 cardiomyoblasts.
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Affiliation(s)
- Falguni S Vyas
- School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham NG11 8NS, UK
| | - Carl P Nelson
- School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham NG11 8NS, UK
| | - John M Dickenson
- School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham NG11 8NS, UK.
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20
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Kawai S, Yamada T, Matsuura T, Funao T, Nishikawa K. Neuropathic pain attenuates ischemia reperfusion injury through β2-adrenergic pathway. Life Sci 2017; 187:9-16. [PMID: 28827152 DOI: 10.1016/j.lfs.2017.08.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2017] [Revised: 07/31/2017] [Accepted: 08/02/2017] [Indexed: 12/23/2022]
Abstract
AIMS The relationship between neuropathic pain and myocardial infarction (MI) was uncertain because of some medication or underlying diseases. This study investigated the impact of neuropathic pain on ischemia reperfusion injury using isolated rat hearts and cardiomyocytes. MAIN METHODS Male Sprague-Dawley rats were assigned to the control and allodynia (AL) groups, with the latter subjected to the fifth lumbar spinal-nerve ligation. First, isolated hearts underwent 25-min ischemia and 90-min reperfusion to assess hemodynamic changes and MI area. Second, isolated cardiomyocytes underwent 10-min laser illumination to assess the opening of mitochondrial permeability transition pore (mPTP) and cellular hypercontraction. Lastly, expression of pro-survival kinases was measured in another cardiomyocytes using flow cytometry. AL-treated hearts were concomitantly examined regarding the involvement of β-adrenergic pathways by esmolol (ESM), β1-blocker (100μM, AL+ESM), and ICI118551 (ICI), β2-blocker (50nM, AL+ICI). KEY FINDINGS All hemodynamic variables did not change significantly in between-group comparisons except at 30min of reperfusion. MI area decreased remarkably in the AL and AL+ESM groups after 90-min reperfusion. The AL+ICI group significantly increased it as compared with the AL and AL+ESM groups. Similarly, the AL and AL+ESM groups significantly inhibited mPTP opening and cellular hypercontraction, whereas the AL+ICI group reversed these effects. Enhanced expression of pro-survival kinases was observed in the AL and AL+ESM groups, but the AL+ICI group abolished this enhancement. SIGNIFICANCE Our findings suggested that neuropathic pain possessed cardioprotective effects through inhibiting mPTP opening. The underlying mechanisms were possibly regulated by β2-adrenergic activation and pro-survival kinase expression in cardiomyocytes.
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Affiliation(s)
- Shigeaki Kawai
- Department of Anesthesiology, Osaka City University Graduate School of Medicine, Japan
| | - Tokuhiro Yamada
- Department of Anesthesiology, Osaka City University Graduate School of Medicine, Japan.
| | - Tadashi Matsuura
- Department of Anesthesiology, Osaka City University Graduate School of Medicine, Japan
| | - Tomoharu Funao
- Department of Anesthesiology, Osaka City University Graduate School of Medicine, Japan
| | - Kiyonobu Nishikawa
- Department of Anesthesiology, Osaka City University Graduate School of Medicine, Japan
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21
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Silva L, Subiabre M, Araos J, Sáez T, Salsoso R, Pardo F, Leiva A, San Martín R, Toledo F, Sobrevia L. Insulin/adenosine axis linked signalling. Mol Aspects Med 2017; 55:45-61. [DOI: 10.1016/j.mam.2016.11.002] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2016] [Revised: 11/16/2016] [Accepted: 11/17/2016] [Indexed: 12/22/2022]
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22
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Hao J, Li WW, Du H, Zhao ZF, Liu F, Lu JC, Yang XC, Cui W. Role of Vitamin C in Cardioprotection of Ischemia/Reperfusion Injury by Activation of Mitochondrial KATP Channel. Chem Pharm Bull (Tokyo) 2017; 64:548-57. [PMID: 27250789 DOI: 10.1248/cpb.c15-00693] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
How to provide effective prevention and treatment of myocardial ischemia/reperfusion (I/R) injury and study of the mechanism underlying I/R injury are hotspots of current research. This study aimed to elucidate the effect and cardioprotective mechanism of vitamin C (VC) on myocardial I/R injury. Our study introduced two different I/R models: I/R in vitro and oxygen-glucose deprivation/recovery (OGD/R) in primary neonatal rat cardiac myocytes. We used the mitochondrial permeability transition pore (mPTP) opener lonidamine (LND) and the mitochondrial KATP (mitoKATP) channel inhibitor 5-hydroxydecanoate (5-HD) to analyze the underlying mechanisms. We found that post-treatment with VC decreased I/R injury in our models. Post-treatment with VC significantly decreased I/R-induced injury, attenuated apoptosis, and maintained the functional integrity of mitochondria via alleviation of Ca(2+) overload, reactive oxygen species burst, inhibition of the opening of mPTP, and prevention of mitochondrial membrane potential (ΔΨm) depolarization. VC post-treatment increased the phosphorylation of Akt and glycogen synthase kinase (GSK)-3β. The present results demonstrate that VC might protect the myocardium from I/R-induced injury by inhibiting the mPTP opening via activation of mitoKATP channels. VC mediates cardioprotection via activation of the phosphatidyl inositol 3-kinase (PI3K)-Akt signaling pathway. These findings may contribute toward the development of novel strategies for clinical cardioprotection against I/R injury.
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Affiliation(s)
- Jie Hao
- The Second Hospital of Hebei Medical University
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23
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Biasutto L, Azzolini M, Szabò I, Zoratti M. The mitochondrial permeability transition pore in AD 2016: An update. BIOCHIMICA ET BIOPHYSICA ACTA 2016; 1863:2515-30. [PMID: 26902508 DOI: 10.1016/j.bbamcr.2016.02.012] [Citation(s) in RCA: 91] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Revised: 02/04/2016] [Accepted: 02/05/2016] [Indexed: 12/13/2022]
Abstract
Over the past 30years the mitochondrial permeability transition - the permeabilization of the inner mitochondrial membrane due to the opening of a wide pore - has progressed from being considered a curious artifact induced in isolated mitochondria by Ca(2+) and phosphate to a key cell-death-inducing process in several major pathologies. Its relevance is by now universally acknowledged and a pharmacology targeting the phenomenon is being developed. The molecular nature of the pore remains to this day uncertain, but progress has recently been made with the identification of the FOF1 ATP synthase as the probable proteic substrate. Researchers sharing this conviction are however divided into two camps: these believing that only the ATP synthase dimers or oligomers can form the pore, presumably in the contact region between monomers, and those who consider that the ring-forming c subunits in the FO sector actually constitute the walls of the pore. The latest development is the emergence of a new candidate: Spastic Paraplegia 7 (SPG7), a mitochondrial AAA-type membrane protease which forms a 6-stave barrel. This review summarizes recent developments of research on the pathophysiological relevance and on the molecular nature of the mitochondrial permeability transition pore. This article is part of a Special Issue entitled: Mitochondrial Channels edited by Pierre Sonveaux, Pierre Maechler and Jean-Claude Martinou.
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Affiliation(s)
- Lucia Biasutto
- CNR Neuroscience Institute, Viale G. Colombo 3, 35121 Padova, Italy; University of Padova, Department of Biomedical Sciences, Viale G. Colombo 3, 35121 Padova, Italy
| | - Michele Azzolini
- CNR Neuroscience Institute, Viale G. Colombo 3, 35121 Padova, Italy; University of Padova, Department of Biomedical Sciences, Viale G. Colombo 3, 35121 Padova, Italy
| | - Ildikò Szabò
- CNR Neuroscience Institute, Viale G. Colombo 3, 35121 Padova, Italy; University of Padova, Department of Biology, Viale G. Colombo 3, 35121 Padova, Italy
| | - Mario Zoratti
- CNR Neuroscience Institute, Viale G. Colombo 3, 35121 Padova, Italy; University of Padova, Department of Biomedical Sciences, Viale G. Colombo 3, 35121 Padova, Italy.
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δ-Opioid receptor (DOR) signaling and reactive oxygen species (ROS) mediate intermittent hypoxia induced protection of canine myocardium. Basic Res Cardiol 2016; 111:17. [PMID: 26879900 DOI: 10.1007/s00395-016-0538-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Accepted: 02/09/2016] [Indexed: 01/01/2023]
Abstract
Intermittent, normobaric hypoxia confers robust cardioprotection against ischemia-induced myocardial infarction and lethal ventricular arrhythmias. δ-Opioid receptor (DOR) signaling and reactive oxygen species (ROS) have been implicated in cardioprotective phenomena, but their roles in intermittent hypoxia are unknown. This study examined the contributions of DOR and ROS in mediating intermittent hypoxia-induced cardioprotection. Mongrel dogs completed a 20 day program consisting of 5-8 daily, 5-10 min cycles of moderate, normobaric hypoxia (FIO2 0.095-0.10), with intervening 4 min room air exposures. Subsets of dogs received the DOR antagonist naltrindole (200 μg/kg, sc) or antioxidant N-acetylcysteine (250 mg/kg, po) before each hypoxia session. Twenty-four hours after the last session, the left anterior descending coronary artery was occluded for 60 min and then reperfused for 5 h. Arrhythmias detected by electrocardiography were scored according to the Lambeth II conventions. Left ventricles were sectioned and stained with 2,3,5-triphenyl-tetrazolium-chloride, and infarct sizes were expressed as percentages of the area at risk (IS/AAR). Intermittent hypoxia sharply decreased IS/AAR from 41 ± 5 % (n = 12) to 1.8 ± 0.9 % (n = 9; P < 0.001) and arrhythmia score from 4.1 ± 0.3 to 0.7 ± 0.2 (P < 0.001) vs. non-hypoxic controls. Naltrindole (n = 6) abrogated the cardioprotection with IS/AAR 35 ± 5 % and arrhythmia score 3.7 ± 0.7 (P < 0.001 vs. untreated intermittent hypoxia). N-acetylcysteine (n = 6) interfered to a similar degree, with IS/AAR 42 ± 3 % and arrhythmia score 4.7 ± 0.3 (P < 0.001 vs. untreated intermittent hypoxia). Without the intervening reoxygenations, hypoxia (n = 4) was not cardioprotective (IS/AAR 50 ± 8 %; arrhythmia score 4.5 ± 0.5; P < 0.001 vs. intermittent hypoxia). Thus DOR, ROS and cyclic reoxygenation were obligatory participants in the gradually evolving cardioprotection produced by intermittent hypoxia.
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25
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Pasqua T, Tota B, Penna C, Corti A, Cerra MC, Loh Y P, Angelone T. pGlu-serpinin protects the normotensive and hypertensive heart from ischemic injury. J Endocrinol 2015; 227:167-178. [PMID: 26400960 PMCID: PMC4651656 DOI: 10.1530/joe-15-0199] [Citation(s) in RCA: 18] [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] [Accepted: 09/23/2015] [Indexed: 12/15/2022]
Abstract
Serpinin peptides derive from proteolytic cleavage of Chromogranin-A at C-terminus. Serpinin and the more potent pyroglutaminated-serpinin (pGlu-Serp) are positive cardiac β-adrenergic-like modulators, acting through β1-AR/AC/cAMP/PKA pathway. Because in some conditions this pathway and/or other pro-survival pathways, activated by other Chromogranin-A fragments, may cross-talk and may be protective, here we explored whether pGlu-Serp cardioprotects against ischemia/reperfusion injury under normotensive and hypertensive conditions. In the latter condition, cardioprotection is often blunted because of the limitations on pro-survival Reperfusion Injury Salvage Kinases (RISK) pathway activation. The effects of pGlu-Serp were evaluated on infarct size (IS) and cardiac function by using the isolated and Langendorff perfused heart of normotensive (Wistar Kyoto, WKY) and spontaneously hypertensive (SHR) rats exposed to ischemic pre-conditioning (PreC) and post-conditioning (PostC). In both WKY and SHR rat, pGlu-Serp induced mild cardioprotection in both PreC and PostC. pGlu-Serp administered at the reperfusion (Serp-PostC) significantly reduced IS, being more protective in SHR than in WKY. Conversely, left ventricular developed pressure (LVDevP) post-ischemic recovery was greater in WKY than in SHR. pGlu-Serp-PostC reduced contracture in both strains. Co-infusion with specific RISK inhibitors (PI3K/Akt, MitoKATP channels and PKC) blocked the pGlu-Serp-PostC protective effects. To show direct effect on cardiomyocytes, we pre-treated H9c2 cells with pGlu-Serp, which were thus protected against hypoxia/reoxygenation. These results suggest pGlu-Serp as a potential modulatory agent implicated in the protective processes that can limit infarct size and overcome the hypertension-induced failure of PostC.
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Affiliation(s)
- T Pasqua
- Dept of Biology, Ecology, and E.S., University of Calabria, Rende (CS), Italy
| | - B Tota
- Dept of Biology, Ecology, and E.S., University of Calabria, Rende (CS), Italy
| | - C Penna
- Dept of Clinical and Biological Sciences, University of Turin, Turin, Italy
| | - A Corti
- Tumor Biology and Vascular Targeting Unit, Division of Molecular Oncology, San Raffaele Scientific Institute, Milan, Italy
| | - M C Cerra
- Dept of Biology, Ecology, and E.S., University of Calabria, Rende (CS), Italy
| | - P Loh Y
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Md 20892, USA
| | - T Angelone
- Dept of Biology, Ecology, and E.S., University of Calabria, Rende (CS), Italy
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26
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Aimo A, Borrelli C, Giannoni A, Pastormerlo LE, Barison A, Mirizzi G, Emdin M, Passino C. Cardioprotection by remote ischemic conditioning: Mechanisms and clinical evidences. World J Cardiol 2015; 7:621-632. [PMID: 26516416 PMCID: PMC4620073 DOI: 10.4330/wjc.v7.i10.621] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Revised: 06/29/2015] [Accepted: 08/14/2015] [Indexed: 02/06/2023] Open
Abstract
In remote ischemic conditioning (RIC), several cycles of ischemia and reperfusion render distant organ and tissues more resistant to the ischemia-reperfusion injury. The intermittent ischemia can be applied before the ischemic insult in the target site (remote ischemic preconditioning), during the ischemic insult (remote ischemic perconditioning) or at the onset of reperfusion (remote ischemic postconditioning). The mechanisms of RIC have not been completely defined yet; however, these mechanisms must be represented by the release of humoral mediators and/or the activation of a neural reflex. RIC has been discovered in the heart, and has been arising great enthusiasm in the cardiovascular field. Its efficacy has been evaluated in many clinical trials, which provided controversial results. Our incomplete comprehension of the mechanisms underlying the RIC could be impairing the design of clinical trials and the interpretation of their results. In the present review we summarize current knowledge about RIC pathophysiology and the data about its cardioprotective efficacy.
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27
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Borea PA, Varani K, Vincenzi F, Baraldi PG, Tabrizi MA, Merighi S, Gessi S. The A3 adenosine receptor: history and perspectives. Pharmacol Rev 2015; 67:74-102. [PMID: 25387804 DOI: 10.1124/pr.113.008540] [Citation(s) in RCA: 177] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
By general consensus, the omnipresent purine nucleoside adenosine is considered a major regulator of local tissue function, especially when energy supply fails to meet cellular energy demand. Adenosine mediation involves activation of a family of four G protein-coupled adenosine receptors (ARs): A(1), A(2)A, A(2)B, and A(3). The A(3) adenosine receptor (A(3)AR) is the only adenosine subtype to be overexpressed in inflammatory and cancer cells, thus making it a potential target for therapy. Originally isolated as an orphan receptor, A(3)AR presented a twofold nature under different pathophysiologic conditions: it appeared to be protective/harmful under ischemic conditions, pro/anti-inflammatory, and pro/antitumoral depending on the systems investigated. Until recently, the greatest and most intriguing challenge has been to understand whether, and in which cases, selective A(3) agonists or antagonists would be the best choice. Today, the choice has been made and A(3)AR agonists are now under clinical development for some disorders including rheumatoid arthritis, psoriasis, glaucoma, and hepatocellular carcinoma. More specifically, the interest and relevance of these new agents derives from clinical data demonstrating that A(3)AR agonists are both effective and safe. Thus, it will become apparent in the present review that purine scientists do seem to be getting closer to their goal: the incorporation of adenosine ligands into drugs with the ability to save lives and improve human health.
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Affiliation(s)
- Pier Andrea Borea
- Department of Medical Sciences, Pharmacology Section (P.A.B., K.V., F.V., S.M., S.G.), and Department of Pharmaceutical Sciences, University of Ferrara, Italy (P.G.B., M.A.T.)
| | - Katia Varani
- Department of Medical Sciences, Pharmacology Section (P.A.B., K.V., F.V., S.M., S.G.), and Department of Pharmaceutical Sciences, University of Ferrara, Italy (P.G.B., M.A.T.)
| | - Fabrizio Vincenzi
- Department of Medical Sciences, Pharmacology Section (P.A.B., K.V., F.V., S.M., S.G.), and Department of Pharmaceutical Sciences, University of Ferrara, Italy (P.G.B., M.A.T.)
| | - Pier Giovanni Baraldi
- Department of Medical Sciences, Pharmacology Section (P.A.B., K.V., F.V., S.M., S.G.), and Department of Pharmaceutical Sciences, University of Ferrara, Italy (P.G.B., M.A.T.)
| | - Mojgan Aghazadeh Tabrizi
- Department of Medical Sciences, Pharmacology Section (P.A.B., K.V., F.V., S.M., S.G.), and Department of Pharmaceutical Sciences, University of Ferrara, Italy (P.G.B., M.A.T.)
| | - Stefania Merighi
- Department of Medical Sciences, Pharmacology Section (P.A.B., K.V., F.V., S.M., S.G.), and Department of Pharmaceutical Sciences, University of Ferrara, Italy (P.G.B., M.A.T.)
| | - Stefania Gessi
- Department of Medical Sciences, Pharmacology Section (P.A.B., K.V., F.V., S.M., S.G.), and Department of Pharmaceutical Sciences, University of Ferrara, Italy (P.G.B., M.A.T.)
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Abstract
Reperfusion is mandatory to salvage ischemic myocardium from infarction, but reperfusion per se contributes to injury and ultimate infarct size. Therefore, cardioprotection beyond that by timely reperfusion is needed to reduce infarct size and improve the prognosis of patients with acute myocardial infarction. The conditioning phenomena provide such cardioprotection, insofar as brief episodes of coronary occlusion/reperfusion preceding (ischemic preconditioning) or following (ischemic postconditioning) sustained myocardial ischemia with reperfusion reduce infarct size. Even ischemia/reperfusion in organs remote from the heart provides cardioprotection (remote ischemic conditioning). The present review characterizes the signal transduction underlying the conditioning phenomena, including their physical and chemical triggers, intracellular signal transduction, and effector mechanisms, notably in the mitochondria. Cardioprotective signal transduction appears as a highly concerted spatiotemporal program. Although the translation of ischemic postconditioning and remote ischemic conditioning protocols to patients with acute myocardial infarction has been fairly successful, the pharmacological recruitment of cardioprotective signaling has been largely disappointing to date.
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Affiliation(s)
- Gerd Heusch
- From the Institute for Pathophysiology, West German Heart and Vascular Centre, University of Essen Medical School, Essen, Germany.
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29
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Zhao Z, Cui W, Zhang H, Gao H, Li X, Wang Y, Hu H, Li B. Pre-treatment of a single high-dose of atorvastatin provided cardioprotection in different ischaemia/reperfusion models via activating mitochondrial KATP channel. Eur J Pharmacol 2015; 751:89-98. [DOI: 10.1016/j.ejphar.2015.01.036] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Revised: 01/18/2015] [Accepted: 01/20/2015] [Indexed: 12/31/2022]
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30
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Wang J, Guo X, Cao J, Zhang X, Zhang J, Sun D, Wang Q. Prolonged pretreatment of mice with cholera toxin, but not isoproterenol, alleviates acute lethal systemic inflammatory response. Int Immunopharmacol 2014; 23:60-5. [PMID: 25130607 DOI: 10.1016/j.intimp.2014.07.035] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2014] [Revised: 07/20/2014] [Accepted: 07/30/2014] [Indexed: 11/25/2022]
Abstract
Isoproterenol, a synthetic non-selective β-adrenergic agonist, is often used during the immediate postoperative period after open heart surgery for its chronotropic and vasodilatory effects. It has been demonstrated that isoproterenol pretreatment followed by immediate LPS administration leads to reduced tumor necrosis factor-α (TNF-α) response in vivo. However, sepsis never happens immediately after the surgery, but rather severe immune dysfunction occurs at least 24h later. It remains elusive what effects isoproterenol might exert to innate immunity during the period. In this scenario, we investigated the effects of 24-h isoproterenol pretreatment on septic shock induced by experimental endotoxemia and bacterial peritonitis, with cholera toxin as another cAMP elevator. Unexpectedly, we found that isoproterenol and cholera toxin exhibited distinct effects in acute lethal systemic inflammatory response. Isoproterenol worsened liver injury without enhancing NK/NKT activity. Meanwhile, cholera toxin but not isoproterenol showed dramatically reduced TNF-α response in LPS induced septic shock. Our data provide a caution for the clinical use of isoproterenol and suggest that isoproterenol has cAMP-independent functions.
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Affiliation(s)
- Jingyang Wang
- Department of Molecular Immunology, Institute of Basic Medical Sciences, 27 Taiping Road, Beijing 100850, PR China; Medical College, Nankai University, Tianjin 300071, PR China
| | - Xiangrui Guo
- Department of Molecular Immunology, Institute of Basic Medical Sciences, 27 Taiping Road, Beijing 100850, PR China; Department of Biomedicine, Institute of Frontier Medical Sciences, Jilin University, Changchun 130021, PR China
| | - Junxia Cao
- Department of Molecular Immunology, Institute of Basic Medical Sciences, 27 Taiping Road, Beijing 100850, PR China
| | - Xueying Zhang
- Department of Molecular Immunology, Institute of Basic Medical Sciences, 27 Taiping Road, Beijing 100850, PR China
| | - Jiyan Zhang
- Department of Molecular Immunology, Institute of Basic Medical Sciences, 27 Taiping Road, Beijing 100850, PR China
| | - Dejun Sun
- Department of Biomedicine, Institute of Frontier Medical Sciences, Jilin University, Changchun 130021, PR China.
| | - Qingyang Wang
- Department of Molecular Immunology, Institute of Basic Medical Sciences, 27 Taiping Road, Beijing 100850, PR China.
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Salie R, Huisamen B, Lochner A. High carbohydrate and high fat diets protect the heart against ischaemia/reperfusion injury. Cardiovasc Diabetol 2014; 13:109. [PMID: 25197961 PMCID: PMC4110645 DOI: 10.1186/s12933-014-0109-8] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2014] [Accepted: 06/29/2014] [Indexed: 01/23/2023] Open
Abstract
Background Although obesity is still considered a risk factor in the development of cardiovascular disorders, recent studies suggested that it may also be associated with reduced morbidity and mortality, the so-called “obesity paradox”. Experimental data on the impact of diabetes, obesity and insulin resistance on myocardial ischaemia/reperfusion injury are controversial. Similar conflicting data have been reported regarding the effects of ischaemic preconditioning on ischaemia/reperfusion injury in hearts from such animals. The aim of the present study was to evaluate the susceptibility to myocardial ischaemia/reperfusion damage in two models of diet-induced obesity as well as the effect of ischaemic and pharmacological preconditioning on such hearts. Methods Three groups of rats were fed with: (i) normal rat chow (controls) (ii) a sucrose-supplemented diet (DIO) (iii) a high fat diet (HFD). After 16 weeks, rats were sacrificed and isolated hearts perfused in the working mode and subjected to 35 min regional ischaemia/60 min reperfusion. Endpoints were infarct size and functional recovery. Infarct size was determined, using tetrazolium staining. Activation of PKB/Akt and ERKp44/p42 (RISK pathway) during early reperfusion was determined using Western blot. Statistical evaluation was done using ANOVA and the Bonferroni correction. Results Infarct sizes of non-preconditioned hearts from the two obese groups were significantly smaller than those of the age-matched controls. Ischaemic as well as pharmacological (beta-adrenergic) preconditioning with a beta2-adrenergic receptor agonist, formoterol, caused a significant reduction in infarct size of the controls, but were without effect on infarct size of hearts from the obese groups. However, ischaemic as well as beta-preconditioning caused an improvement in functional performance during reperfusion in all three groups. A clear-cut correlation between the reduction in infarct size and activation of ERKp44/p42 and PKB/Akt was not observed: The reduction in infarct size observed in the non-preconditioned hearts from the obese groups was not associated with activation of the RISK pathway. However, beta-adrenergic preconditioning caused a significant activation of ERKp44/p42, but not PKB/Akt, in all three groups. Conclusions Relatively long-term administration of the two obesity-inducing diets resulted in cardioprotection against ischaemia/reperfusion damage. Further protection by preconditioning was, however, without effect on infarct size, while an improvement in functional recovery was observed.
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32
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Grisanti LA, Talarico JA, Carter RL, Yu JE, Repas AA, Radcliffe SW, Tang HA, Makarewich CA, Houser SR, Tilley DG. β-Adrenergic receptor-mediated transactivation of epidermal growth factor receptor decreases cardiomyocyte apoptosis through differential subcellular activation of ERK1/2 and Akt. J Mol Cell Cardiol 2014; 72:39-51. [PMID: 24566221 PMCID: PMC4037368 DOI: 10.1016/j.yjmcc.2014.02.009] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2013] [Revised: 01/15/2014] [Accepted: 02/12/2014] [Indexed: 02/03/2023]
Abstract
β-Adrenergic receptor (βAR)-mediated transactivation of epidermal growth factor receptor (EGFR) has been shown to relay pro-survival effects via unknown mechanisms. We hypothesized that acute βAR-mediated EGFR transactivation in the heart promotes differential subcellular activation of ERK1/2 and Akt, promoting cell survival through modulation of apoptosis. C57BL/6 mice underwent acute i.p. injection with isoproterenol (ISO)±AG 1478 (EGFR antagonist) to assess the impact of βAR-mediated EGFR transactivation on the phosphorylation of ERK1/2 (P-ERK1/2) and Akt (P-Akt) in distinct cardiac subcellular fractions. Increased P-ERK1/2 and P-Akt were observed in cytosolic, plasma membrane and nuclear fractions following ISO stimulation. Whereas the P-ERK1/2 response was EGFR-sensitive in all fractions, the P-Akt response was EGFR-sensitive only in the plasma membrane and nucleus, results confirmed in primary rat neonatal cardiomyocytes (RNCM). βAR-mediated EGFR-transactivation also decreased apoptosis in serum-depleted RNCM, as measured via TUNEL as well as caspase 3 activity/cleavage, which were sensitive to the inhibition of either ERK1/2 (PD184352) or Akt (LY-294002) signaling. Caspase 3 activity/cleavage was also sensitive to the inhibition of transcription, which, with an increase in nuclear P-ERK1/2 and P-Akt in response to ISO, suggested that βAR-mediated EGFR transactivation may regulate apoptotic gene transcription. An Apoptosis PCR Array identified tnfsf10 (TRAIL) to be altered by ISO in an EGFR-sensitive manner, results confirmed via RT-PCR and ELISA measurement of both membrane-bound and soluble cardiomyocyte TRAIL levels. βAR-mediated EGFR transactivation induces differential subcellular activation of ERK1/2 and Akt leading to increased cell survival through the modulation of caspase 3 activity and apoptotic gene expression in cardiomyocytes.
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MESH Headings
- Adrenergic beta-Agonists/pharmacology
- Animals
- Animals, Newborn
- Apoptosis/drug effects
- Apoptosis/genetics
- Caspase 3/genetics
- Caspase 3/metabolism
- Cats
- ErbB Receptors/antagonists & inhibitors
- ErbB Receptors/genetics
- ErbB Receptors/metabolism
- Gene Expression Regulation
- Isoproterenol/pharmacology
- Mice
- Mice, Inbred C57BL
- Mitogen-Activated Protein Kinase 1/genetics
- Mitogen-Activated Protein Kinase 1/metabolism
- Mitogen-Activated Protein Kinase 3/genetics
- Mitogen-Activated Protein Kinase 3/metabolism
- Myocytes, Cardiac/cytology
- Myocytes, Cardiac/drug effects
- Myocytes, Cardiac/metabolism
- Phosphorylation
- Primary Cell Culture
- Proto-Oncogene Proteins c-akt/genetics
- Proto-Oncogene Proteins c-akt/metabolism
- Quinazolines/pharmacology
- Rats
- Rats, Sprague-Dawley
- Receptors, Adrenergic, beta/genetics
- Receptors, Adrenergic, beta/metabolism
- Signal Transduction
- Tyrphostins/pharmacology
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Affiliation(s)
- Laurel A Grisanti
- Center for Translational Medicine, Temple University School of Medicine, Philadelphia, PA 19140, USA
| | - Jennifer A Talarico
- Department of Pharmaceutical Sciences, Jefferson School of Pharmacy, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Rhonda L Carter
- Center for Translational Medicine, Temple University School of Medicine, Philadelphia, PA 19140, USA
| | - Justine E Yu
- Center for Translational Medicine, Temple University School of Medicine, Philadelphia, PA 19140, USA
| | - Ashley A Repas
- Center for Translational Medicine, Temple University School of Medicine, Philadelphia, PA 19140, USA
| | - Scott W Radcliffe
- Department of Pharmaceutical Sciences, Jefferson School of Pharmacy, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Hoang-Ai Tang
- Department of Pharmaceutical Sciences, Jefferson School of Pharmacy, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Catherine A Makarewich
- Cardiovascular Research Center, Temple University School of Medicine, Philadelphia, PA 19140, USA
| | - Steven R Houser
- Cardiovascular Research Center, Temple University School of Medicine, Philadelphia, PA 19140, USA
| | - Douglas G Tilley
- Center for Translational Medicine, Temple University School of Medicine, Philadelphia, PA 19140, USA; Department of Pharmacology, Temple University School of Medicine, Philadelphia, PA 19140, USA.
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Yan LJ. Positive oxidative stress in aging and aging-related disease tolerance. Redox Biol 2014; 2:165-9. [PMID: 25460727 PMCID: PMC4297947 DOI: 10.1016/j.redox.2014.01.002] [Citation(s) in RCA: 104] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2013] [Revised: 12/30/2013] [Accepted: 01/01/2014] [Indexed: 12/14/2022] Open
Abstract
It is now well established that reactive oxygen species (ROS), reactive nitrogen species (RNS), and a basal level of oxidative stress are essential for cell survival. It is also well known that while severe oxidative stress often leads to widespread oxidative damage and cell death, a moderate level of oxidative stress, induced by a variety of stressors, can yield great beneficial effects on adaptive cellular responses to pathological challenges in aging and aging-associated disease tolerance such as ischemia tolerance. Here in this review, I term this moderate level of oxidative stress as positive oxidative stress, which usually involves imprinting molecular signatures on lipids and proteins via formation of lipid peroxidation by-products and protein oxidation adducts. As ROS/RNS are short-lived molecules, these molecular signatures can thus execute the ultimate function of ROS/RNS. Representative examples of lipid peroxidation products and protein oxidation adducts are presented to illustrate the role of positive oxidative stress in a variety of pathological settings, demonstrating that positive oxidative stress could be a valuable prophylactic and/or therapeutic approach targeting aging and aging-associated diseases.
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Affiliation(s)
- Liang-Jun Yan
- Department of Pharmacology and Neuroscience, and Institute for Aging and Alzheimer's Disease, University of North Texas Health Science Center, Fort Worth, TX 76107, United States.
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Garbaisz D, Turoczi Z, Fulop A, Rosero O, Aranyi P, Onody P, Lotz G, Rakonczay Z, Balla Z, Harsanyi L, Szijarto A. Therapeutic option for managing lung injury induced by infrarenal aortic cross-clamping. J Surg Res 2013; 185:469-76. [DOI: 10.1016/j.jss.2013.05.022] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2013] [Revised: 04/30/2013] [Accepted: 05/03/2013] [Indexed: 12/26/2022]
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Redox balance and cardioprotection. Basic Res Cardiol 2013; 108:392. [DOI: 10.1007/s00395-013-0392-7] [Citation(s) in RCA: 101] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2013] [Revised: 09/24/2013] [Accepted: 10/14/2013] [Indexed: 12/11/2022]
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Krenz M, Baines C, Kalogeris T, Korthuis R. Cell Survival Programs and Ischemia/Reperfusion: Hormesis, Preconditioning, and Cardioprotection. ACTA ACUST UNITED AC 2013. [DOI: 10.4199/c00090ed1v01y201309isp044] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Chang WT, Li J, Vanden Hoek MS, Zhu X, Li CQ, Huang HH, Hsu CW, Zhong Q, Li J, Chen SJ, Vanden Hoek TL, Shao ZH. Baicalein Preconditioning Protects Cardiomyocytes from Ischemia-Reperfusion Injury via Mitochondrial Oxidant Signaling. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2013; 41:315-31. [DOI: 10.1142/s0192415x13500237] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Previous studies suggest baicalein, in addition to its antioxidant effects, protects against hypoxia/reoxygenation injury via its pro-oxidant properties. We hypothesize that a brief period of baicalein treatment prior to ischemia/reperfusion (I/R) may trigger preconditioning protection via a mitochondrial pro-oxidant mechanism. Using an established chick cardiomyocyte model of I/R, cells were preconditioned with baicalein (10 μM) for 10 min followed by 10-min wash prior to I/R. Intracellular oxidants were measured using 2′, 7′-dichlorofluorescin diacetate (DCFH/DA). Cell viability was assessed by propidium iodide and apoptosis determined by DNA fragmentation. Baicalein induced a transient but significant increase of DCF fluorescence within the 10-min preconditioning period, and led to significant reduction of cell death (38.9 ± 1.8% vs. 58.7 ± 1.2% in I/R control, n = 6, p < 0.001) and DNA fragmentation after I/R. Cotreatment with N-acetylcysteine (500 μM), mitochondrial complex III electron transport chain inhibitor myxothiazol (1 μM), mitochondrial KATP channel blocker 5-hydroxydecanoate-Na (5-HD, 500 μM) or anion channel inhibitor 4′, 4′-diisothiocyanato-stilbene-2, 2′-disulfonic acid (DIDS, 200 μM) resulted in significant abrogation of oxidant increase during induction as well as the protection conferred by baicalein preconditioning. These results suggest that baicalein preconditioning exhibits significant anti-apoptotic protection against cardiomyocyte I/R injury by mitochondrial oxidant signaling, which was in part mediated by mitochondrial KATP channel and anion channel opening.
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Affiliation(s)
- Wei-Tien Chang
- Department of Emergency Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Jing Li
- Department of Emergency Medicine, University of Illinois Hospital and Health Sciences System, Chicago, IL, USA
| | - Matthew S. Vanden Hoek
- Department of Emergency Medicine, University of Illinois Hospital and Health Sciences System, Chicago, IL, USA
| | - Xiangdong Zhu
- Department of Emergency Medicine, University of Illinois Hospital and Health Sciences System, Chicago, IL, USA
| | - Chang-Qing Li
- Department of Emergency Medicine, University of Illinois Hospital and Health Sciences System, Chicago, IL, USA
| | - Hsien-Hao Huang
- Department of Emergency Medicine, Taipei Veterans General Hospital and Emergency Medicine, College of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Chin-Wang Hsu
- Department of Critical and Emergency Medicine, Wan-Fang Hospital, Taipei Medical University, Taipei, Taiwan
| | - Qiang Zhong
- Department of Emergency Medicine, Tongji Hospital, Huazhaong University of Science and Technology, Wuhan, China
| | - Juan Li
- Department of Emergency Medicine, University of Illinois Hospital and Health Sciences System, Chicago, IL, USA
| | - Sy-Jou Chen
- Department of Emergency Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Terry L. Vanden Hoek
- Department of Emergency Medicine, University of Illinois Hospital and Health Sciences System, Chicago, IL, USA
| | - Zuo-Hui Shao
- Department of Emergency Medicine, University of Illinois Hospital and Health Sciences System, Chicago, IL, USA
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Hsu PL, Su BC, Kuok QY, Mo FE. Extracellular matrix protein CCN1 regulates cardiomyocyte apoptosis in mice with stress-induced cardiac injury. Cardiovasc Res 2013; 98:64-72. [DOI: 10.1093/cvr/cvt001] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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