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Song T, Hui W, Huang M, Guo Y, Yu M, Yang X, Liu Y, Chen X. Dynamic Changes in Ion Channels during Myocardial Infarction and Therapeutic Challenges. Int J Mol Sci 2024; 25:6467. [PMID: 38928173 DOI: 10.3390/ijms25126467] [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: 04/20/2024] [Revised: 06/02/2024] [Accepted: 06/10/2024] [Indexed: 06/28/2024] Open
Abstract
In different areas of the heart, action potential waveforms differ due to differences in the expressions of sodium, calcium, and potassium channels. One of the characteristics of myocardial infarction (MI) is an imbalance in oxygen supply and demand, leading to ion imbalance. After MI, the regulation and expression levels of K+, Ca2+, and Na+ ion channels in cardiomyocytes are altered, which affects the regularity of cardiac rhythm and leads to myocardial injury. Myocardial fibroblasts are the main effector cells in the process of MI repair. The ion channels of myocardial fibroblasts play an important role in the process of MI. At the same time, a large number of ion channels are expressed in immune cells, which play an important role by regulating the in- and outflow of ions to complete intracellular signal transduction. Ion channels are widely distributed in a variety of cells and are attractive targets for drug development. This article reviews the changes in different ion channels after MI and the therapeutic drugs for these channels. We analyze the complex molecular mechanisms behind myocardial ion channel regulation and the challenges in ion channel drug therapy.
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Affiliation(s)
- Tongtong Song
- Department of Pharmacology, College of Basic Medical Sciences, Jilin University, Changchun 130012, China
- Department of Anatomy, College of Basic Medical Sciences, Jilin University, Changchun 130012, China
| | - Wenting Hui
- Department of Pharmacology, College of Basic Medical Sciences, Jilin University, Changchun 130012, China
| | - Min Huang
- Department of Pharmacology, College of Basic Medical Sciences, Jilin University, Changchun 130012, China
| | - Yan Guo
- Department of Pharmacology, College of Basic Medical Sciences, Jilin University, Changchun 130012, China
| | - Meiyi Yu
- Department of Pharmacology, College of Basic Medical Sciences, Jilin University, Changchun 130012, China
| | - Xiaoyu Yang
- Department of Pharmacology, College of Basic Medical Sciences, Jilin University, Changchun 130012, China
| | - Yanqing Liu
- Department of Pharmacology, College of Basic Medical Sciences, Jilin University, Changchun 130012, China
| | - Xia Chen
- Department of Pharmacology, College of Basic Medical Sciences, Jilin University, Changchun 130012, China
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Gong Y, Kong B, Shuai W, Chen T, Zhang JJ, Huang H. USP38 regulates inflammatory cardiac remodeling after myocardial infarction. Clin Sci (Lond) 2023; 137:1665-1681. [PMID: 37903290 DOI: 10.1042/cs20230728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 10/25/2023] [Accepted: 10/30/2023] [Indexed: 11/01/2023]
Abstract
BACKGROUND The inflammatory response and subsequent ventricular remodeling are key factors contributing to ventricular arrhythmias (VAs) after myocardial infarction (MI). Ubiquitin-specific protease 38 (USP38) is a member of the USP family, but the impact of USP38 in arrhythmia substrate generation after MI remains unclear. This study aimed to determine the role of USP38 in post-MI VAs and its underlying mechanisms. METHODS AND RESULTS Surgical left descending coronary artery ligation was used to construct MI models. Morphological, biochemical, histological, and electrophysiological studies and molecular analyses were performed after MI on days 3 and 28. We found that the USP38 expression was remarkably increased after MI. Cardiac-conditional USP38 knockout (USP38-CKO) reduces the expression of the inflammatory marker CD68 as well as the inflammatory factors TNF-α and IL-1β after MI, thereby alleviating advanced cardiac fibrosis, electrical remodeling, ion channel remodeling, and susceptibility to VAs. In contrast, cardiac-specific USP38 overexpression (USP38-TG) showed a significant opposite effect, exacerbating the early inflammatory response and cardiac remodeling after MI. Mechanistically, USP38 knockout inhibited activation of the TAK1/NF-κB signaling pathway after MI, whereas USP38 overexpression enhanced activation of the TAK1/NF-κB signaling pathway after MI. CONCLUSIONS Our study confirms that USP38-CKO attenuates the inflammatory response, improves ventricular remodeling after myocardial infarction, and reduces susceptibility to malignant VA by inhibiting the activation of the TAK1/NF-κB pathway, with USP38-TG playing an opposing role. These results suggest that USP38 may be an important target for the treatment of cardiac remodeling and arrhythmias after MI.
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Affiliation(s)
- Yang Gong
- Department of Cardiology, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuhan, Hubei 430060, China
- Cardiovascular Research Institute of Wuhan University, Wuhan, China
- Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Bin Kong
- Department of Cardiology, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuhan, Hubei 430060, China
- Cardiovascular Research Institute of Wuhan University, Wuhan, China
- Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Wei Shuai
- Department of Cardiology, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuhan, Hubei 430060, China
- Cardiovascular Research Institute of Wuhan University, Wuhan, China
- Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Tao Chen
- Department of Cardiology, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuhan, Hubei 430060, China
- Cardiovascular Research Institute of Wuhan University, Wuhan, China
- Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Jing Jing Zhang
- Department of Cardiology, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuhan, Hubei 430060, China
- Cardiovascular Research Institute of Wuhan University, Wuhan, China
- Hubei Key Laboratory of Cardiology, Wuhan, China
| | - He Huang
- Department of Cardiology, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuhan, Hubei 430060, China
- Cardiovascular Research Institute of Wuhan University, Wuhan, China
- Hubei Key Laboratory of Cardiology, Wuhan, China
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Wang H, Liu Y, Han S, Zi Y, Zhang Y, Kong R, Liu Z, Cai Z, Zhong C, Liu W, Li L, Jiang L. Nkx2-5 Regulates the Proliferation and Migration of H9c2 Cells. Med Sci Monit 2020; 26:e925388. [PMID: 32780729 PMCID: PMC7441744 DOI: 10.12659/msm.925388] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Background The protein NKX2–5 affects mammalian heart development. In mice, the disruption of Nkx2–5 has been associated with arrhythmias, abnormal myocardial contraction, abnormal cardiac morphogenesis, and death. However, the details of the mechanisms are unclear. This study was designed to investigate them. Material/Methods Rat cardiomyocytes from the H9c2 cell line were used in our study. First, we knocked down Nkx2–5 in the H9c2 cells and then validated consequent changes in cell proliferation and migration. We then used RNA sequencing to determine the changes in transcripts. Finally, we validated these results by quantitative reverse transcription-polymerase chain reaction. Results We confirmed that Nkx2–5 regulates the proliferation and migration of H9c2 cells. In our experiments, Nkx2–5 regulated the expression of genes related to proliferation, migration, heart development, and disease. Based on bioinformatics analysis, knockdown of Nkx2–5 caused differential expression of genes involved in cardiac development, calcium ion-related biological activity, the transforming growth factor (TGF)-β signaling pathway, pathways related to heart diseases, the MAPK signaling pathway, and other biological processes and signaling pathways. Conclusions Nkx2–5 may regulate proliferation and migration of the H9c2 cells through the genes Tgfb-2, Bmp10, Id2, Wt1, Hey1, and Cacna1g; rno-miR-1-3p; the TGF-β signaling pathway; the MAPK signaling pathway; as well as other genes and pathways.
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Affiliation(s)
- Hongshu Wang
- Yan'an Hospital Affiliated to Kunming Medical University, Kunming, Yunnan, China (mainland)
| | - Yong Liu
- Fuwai Yunnan Cardiovascular Hospital, Kunming Medical University, Kunming, Yunnan, China (mainland)
| | - Shen Han
- Yan'an Hospital Affiliated to Kunming Medical University, Kunming, Yunnan, China (mainland)
| | - Yunfeng Zi
- Yan'an Hospital Affiliated to Kunming Medical University, Kunming, Yunnan, China (mainland)
| | - Yayong Zhang
- Yan'an Hospital Affiliated to Kunming Medical University, Kunming, Yunnan, China (mainland)
| | - Ruize Kong
- The First People's Hospital of Yunnan Province, Kunming, Yunnan, China (mainland)
| | - Zu Liu
- Yan'an Hospital Affiliated to Kunming Medical University, Kunming, Yunnan, China (mainland)
| | - Zhibin Cai
- Yan'an Hospital Affiliated to Kunming Medical University, Kunming, Yunnan, China (mainland)
| | - Chongbin Zhong
- Department of Thoracic Surgery, The People's Hospital of Chuxiong Yi Autonomous Prefecture, Chuxiong, Yunnan, China (mainland)
| | - Wei Liu
- Department II of Hepatobillary Surgery, The People's Hospital of Chuxiong Yi Autonomous Prefecture, Chuxiong, Yunnan, China (mainland)
| | - Lifeng Li
- Department of Thoracic Surgery, The People's Hospital of Chuxiong Yi Autonomous Prefecture, Chuxiong, Yunnan, China (mainland)
| | - Lihong Jiang
- The First People's Hospital of Yunnan Province, Kunming, Yunnan, China (mainland)
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Zhang X, Li Y, Zhang X, Piacentino V, Harris DM, Berretta R, Margulies KB, Houser SR, Chen X. A low voltage activated Ca 2+ current found in a subset of human ventricular myocytes. Channels (Austin) 2020; 14:231-245. [PMID: 32684070 PMCID: PMC7515576 DOI: 10.1080/19336950.2020.1794420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Low voltage activated (ICa-LVA) calcium currents including Cav1.3 and T-type calcium current (ICa-T) have not been reported in adult human left ventricular myocytes (HLVMs). We tried to examine their existence and possible correlation with etiology and patient characteristics in a big number of human LVMs isolated from explanted terminally failing (F) hearts, failing hearts with left ventricular assist device (F-LVAD) and nonfailing (NF) human hearts. LVA (ICa-LVA) was determined by subtracting L-type Ca2+ current (ICa-L) recorded with the holding potential of −50 mV from total Ca2+ current recorded with the holding potential of −90 mV or −70 mV. ICa- LVA was further tested with its sensitivity to 100 µM CdCl2 and tetrodotoxin. Three HLVMs (3 of 137 FHLVMs) from 2 (N = 30 hearts) failing human hearts, of which one was idiopathic and the other was due to primary pulmonary hypertension, were found with ICa-LVA. ICa-LVA in one FHLVM was not sensitive to 100 µM CdCl2 while ICa-LVA in another two FHLVMs was not sensitive to tetrodotoxin. It peaked at the voltage of −40~-20 mV and had a time-dependent decay faster than ICa-L but slower than sodium current (INa). ICa-LVA was not found in any HLVMs from NF (75 HLVMs from 17 hearts) or F-LVAD hearts (82 HLVMs from 18 hearts) but a statistically significant correlation could not be established. In conclusion, ICa-LVA was detected in some HLVMs of a small portion of human hearts that happened to be nonischemic failing hearts.
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Affiliation(s)
- Xin Zhang
- Department of Infection Diseases The First Affiliated Hospital of China Medical University , Shenyang China.,Department of Physiology and Cardiovascular Research Center, Temple University Lewis Katz School of Medicine , Philadelphia, PA, USA
| | - Yijia Li
- Department of Physiology and Cardiovascular Research Center, Temple University Lewis Katz School of Medicine , Philadelphia, PA, USA
| | - Xiaoying Zhang
- Department of Physiology and Cardiovascular Research Center, Temple University Lewis Katz School of Medicine , Philadelphia, PA, USA
| | - Valentino Piacentino
- Department of Physiology and Cardiovascular Research Center, Temple University Lewis Katz School of Medicine , Philadelphia, PA, USA.,Department Grand Strand Surgical Care, Grand Strand Regional Medical Center , Myrtle Beach, SC
| | - David M Harris
- Department of Physiology and Cardiovascular Research Center, Temple University Lewis Katz School of Medicine , Philadelphia, PA, USA.,College of Medicine, University of Central Florida , Orlando, Florida, USA
| | - Remus Berretta
- Department of Physiology and Cardiovascular Research Center, Temple University Lewis Katz School of Medicine , Philadelphia, PA, USA
| | - Kenneth B Margulies
- Department of Physiology and Cardiovascular Research Center, Temple University Lewis Katz School of Medicine , Philadelphia, PA, USA.,Department of Medicine, University of Pennsylvania , Philadelphia, PA, USA
| | - Steven R Houser
- Department of Physiology and Cardiovascular Research Center, Temple University Lewis Katz School of Medicine , Philadelphia, PA, USA
| | - Xiongwen Chen
- Department of Physiology and Cardiovascular Research Center, Temple University Lewis Katz School of Medicine , Philadelphia, PA, USA
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Bodi I, Nakayama H, Schwartz A. Tetrodotoxin-sensitive Ca2+ Currents, but No T-type Currents in Normal, Hypertrophied, and Failing Mouse Cardiomyocytes. J Cardiovasc Pharmacol 2016; 68:452-464. [PMID: 27617699 PMCID: PMC5145783 DOI: 10.1097/fjc.0000000000000432] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
AIMS To obtain functional evidence that ICa,T is involved in the pathogenesis of cardiac hypertrophy and heart failure. We unexpectedly identified ICa(TTX) rather than ICa,T, therefore, we adjusted our aim to encompass these findings. METHODS AND RESULTS We investigated (1) Cav3.1 (α1G) transgenic (Tg) mice compared with nontransgenic (tTA-Ntg); (2) Cav3.1-deficient mice (Cav3.1) compared with wild type (Wt) after chemically and surgically induced cardiac remodeling; and (3) spontaneous hypertensive rats and thoracic aortic constriction (TAC) rats. Whole-cell patch-clamp technique was used to measure ICa in ventricular myocytes. Cav3.1-Tg expressed ICa,T (-18.35 ± 1.02 pA/pF at -40 mV) without signs of compromised cardiac function. While we failed to detect ICa,T after hypertrophic stimuli, instead we demonstrated that both Wt and Cav3.1 mouse exhibit ICa(TTX). Using TAC rats, only 2 of 24 VMs showed ICa,T under our experimental conditions. Without TTX, ICa(TTX) occurred in VMs from Wt, spontaneous hypertensive rats, and TAC rats also. CONCLUSIONS These findings demonstrate for the first time that mouse VMs express ICa(TTX). We suggest that future studies should take into consideration the measuring conditions when interpreting ICa,T reappearance in ventricular myocytes in response to hypertrophic stress. Contamination with ICa(TTX) could possibly confuse the relevance of the data.
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Affiliation(s)
- Ilona Bodi
- Department of Pediatrics, Division of Molecular Cardiovascular Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Hiroyuki Nakayama
- Department of Pediatrics, Division of Molecular Cardiovascular Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
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6
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Rowan SC, Keane MP, Gaine S, McLoughlin P. Hypoxic pulmonary hypertension in chronic lung diseases: novel vasoconstrictor pathways. THE LANCET RESPIRATORY MEDICINE 2016; 4:225-36. [PMID: 26895650 DOI: 10.1016/s2213-2600(15)00517-2] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Revised: 12/03/2015] [Accepted: 12/07/2015] [Indexed: 11/29/2022]
Abstract
Pulmonary hypertension is a well recognised complication of chronic hypoxic lung diseases, which are among the most common causes of death and disability worldwide. Development of pulmonary hypertension independently predicts reduced life expectancy. In chronic obstructive pulmonary disease, long-term oxygen therapy ameliorates pulmonary hypertension and greatly improves survival, although the correction of alveolar hypoxia and pulmonary hypertension is only partial. Advances in understanding of the regulation of vascular smooth muscle tone show that chronic vasoconstriction plays a more important part in the pathogenesis of hypoxic pulmonary hypertension than previously thought, and that structural vascular changes contribute less. Trials of existing vasodilators show that pulmonary hypertension can be ameliorated and systemic oxygen delivery improved in carefully selected patients, although systemic hypotensive effects limit the doses used. Vasoconstrictor pathways that are selective for the pulmonary circulation can be blocked to reduce hypoxic pulmonary hypertension without causing systemic hypotension, and thus provide potential targets for novel therapeutic strategies.
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Affiliation(s)
- Simon C Rowan
- UCD School of Medicine, Conway Institute, Dublin, Ireland
| | - Michael P Keane
- UCD School of Medicine, Respiratory Medicine, St Vincent's University Hospital, Dublin, Ireland
| | - Seán Gaine
- National Pulmonary Hypertension Unit, Mater Misericordiae University Hospital, Dublin, Ireland
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7
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Walton RD, Jones SA, Rostron KA, Kayani AC, Close GL, McArdle A, Lancaster MK. Interactions of Short-Term and Chronic Treadmill Training With Aging of the Left Ventricle of the Heart. J Gerontol A Biol Sci Med Sci 2015; 71:1005-13. [PMID: 26248561 PMCID: PMC4945880 DOI: 10.1093/gerona/glv093] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Accepted: 05/22/2015] [Indexed: 02/06/2023] Open
Abstract
With aging, there is a decline in cardiac function accompanying increasing risk of arrhythmias. These effects are likely to be mechanistically associated with age-associated changes in calcium regulation within cardiac myocytes. Previous studies suggest that lifelong exercise can potentially reduce age-associated changes in the heart. Although exercise itself is associated with changes in cardiac function, little is known about the interactions of aging and exercise with respect to myocyte calcium regulation. To investigate this, adult (12 months) and old (24 months) C57/Bl6 mice were trained using moderate-intensity treadmill running. In response to 10 weeks’ training, comparable cardiac hypertrophic responses were observed, although aging independently associated with additional cardiac hypertrophy. Old animals also showed increased L- and T-type calcium channels, the sodium–calcium exchange, sarcoendoplasmic reticulum calcium ATPase, and collagen (by 50%, 92%, 66%, 88%, and 113% respectively). Short-term exercise training increased D-type and T-type calcium channels in old animals only, whereas an increase in sodium–calcium exchange was seen only in adult animals. Long-term (12 months) training generally opposed the effects of aging. Significant hypertrophy remained in long-term trained old animals, but levels of sarcoendoplasmic reticulum calcium ATPase, sodium–calcium exchange, and collagen were not significantly different from those found in the adult trained animals.
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Affiliation(s)
| | | | | | - Anna C Kayani
- Institute of Ageing & Chronic Disease, Faculty of Health and Life Sciences, University of Liverpool
| | - Graeme L Close
- Institute of Ageing & Chronic Disease, Faculty of Health and Life Sciences, University of Liverpool
| | - Anne McArdle
- Institute of Ageing & Chronic Disease, Faculty of Health and Life Sciences, University of Liverpool
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8
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Curran J, Musa H, Kline CF, Makara MA, Little SC, Higgins JD, Hund TJ, Band H, Mohler PJ. Eps15 Homology Domain-containing Protein 3 Regulates Cardiac T-type Ca2+ Channel Targeting and Function in the Atria. J Biol Chem 2015; 290:12210-21. [PMID: 25825486 DOI: 10.1074/jbc.m115.646893] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2015] [Indexed: 11/06/2022] Open
Abstract
Proper trafficking of membrane-bound ion channels and transporters is requisite for normal cardiac function. Endosome-based protein trafficking of membrane-bound ion channels and transporters in the heart is poorly understood, particularly in vivo. In fact, for select cardiac cell types such as atrial myocytes, virtually nothing is known regarding endosomal transport. We previously linked the C-terminal Eps15 homology domain-containing protein 3 (EHD3) with endosome-based protein trafficking in ventricular cardiomyocytes. Here we sought to define the roles and membrane protein targets for EHD3 in atria. We identify the voltage-gated T-type Ca(2+) channels (CaV3.1, CaV3.2) as substrates for EHD3-dependent trafficking in atria. Mice selectively lacking EHD3 in heart display reduced expression and targeting of both Cav3.1 and CaV3.2 in the atria. Furthermore, functional experiments identify a significant loss of T-type-mediated Ca(2+) current in EHD3-deficient atrial myocytes. Moreover, EHD3 associates with both CaV3.1 and CaV3.2 in co-immunoprecipitation experiments. T-type Ca(2+) channel function is critical for proper electrical conduction through the atria. Consistent with these roles, EHD3-deficient mice demonstrate heart rate variability, sinus pause, and atrioventricular conduction block. In summary, our findings identify CaV3.1 and CaV3.2 as substrates for EHD3-dependent protein trafficking in heart, provide in vivo data on endosome-based trafficking pathways in atria, and implicate EHD3 as a key player in the regulation of atrial myocyte excitability and cardiac conduction.
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Affiliation(s)
- Jerry Curran
- From the Dorothy M. Davis Heart and Lung Research Institute, the Departments of Physiology and Cell Biology,
| | - Hassan Musa
- From the Dorothy M. Davis Heart and Lung Research Institute, the Departments of Physiology and Cell Biology
| | - Crystal F Kline
- From the Dorothy M. Davis Heart and Lung Research Institute, the Departments of Physiology and Cell Biology
| | - Michael A Makara
- From the Dorothy M. Davis Heart and Lung Research Institute, the Departments of Physiology and Cell Biology
| | - Sean C Little
- From the Dorothy M. Davis Heart and Lung Research Institute, the Departments of Physiology and Cell Biology
| | - John D Higgins
- From the Dorothy M. Davis Heart and Lung Research Institute, the Departments of Physiology and Cell Biology
| | - Thomas J Hund
- From the Dorothy M. Davis Heart and Lung Research Institute, Biomedical Engineering,The Ohio State University Wexner Medical Center, Columbus, Ohio 43210 and
| | - Hamid Band
- The Eppley Institute and UNMC-Eppley Cancer Center, University of Nebraska Medical Center, Omaha, Nebraska 68198
| | - Peter J Mohler
- From the Dorothy M. Davis Heart and Lung Research Institute, the Departments of Physiology and Cell Biology, Medicine, and
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Kuwahara K, Kimura T. The organ-protective effect of N-type Ca(2+) channel blockade. Pharmacol Ther 2015; 151:1-7. [PMID: 25659931 DOI: 10.1016/j.pharmthera.2015.02.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2014] [Accepted: 01/20/2015] [Indexed: 01/13/2023]
Abstract
The six subtypes of voltage-dependent Ca(2+) channels (VDCCs) mediate a wide range of physiological responses. N-type VDCCs (NCCs) were originally identified as a high voltage-activated Ca(2+) channel selectively blocked by omega-conotoxin (ω-CTX)-GVIA. Predominantly localized in the nervous system, NCCs are key regulators of neurotransmitter release. Both pharmacological blockade with ω-CTX-GVIA and, more recently, mice lacking CNCNA1B, encoding the α1B subunit of NCC, have been used to assess the physiological and pathophysiological functions of NCCs, revealing in part their significant roles in sympathetic nerve activation and nociceptive transmission. The evidence now available indicates that NCCs are a potentially useful therapeutic target for the treatment of several pathological conditions. Efforts are therefore being made to develop effective NCC blockers, including both synthetic ω-CTX-GVIA derivatives and small-molecule inhibitors. Cilnidipine, for example, is a dihydropyridine L-type VDCC blocking agent that also possesses significant NCC blocking ability. As over-activation of the sympathetic nervous system appears to contribute to the pathological processes underlying cardiovascular, renal and metabolic diseases, NCC blockade could be a useful approach to treating these ailments. In this review article, we provide an overview of what is currently known about the physiological and pathophysiological activities of NCCs and the potentially beneficial effects of NCC blockade in several disease conditions, in particular cardiovascular diseases.
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Affiliation(s)
- Koichiro Kuwahara
- Department of Cardiovascular Medicine, Kyoto University Graduate School of Medicine, Kyoto 606-8507, Japan.
| | - Takeshi Kimura
- Department of Cardiovascular Medicine, Kyoto University Graduate School of Medicine, Kyoto 606-8507, Japan
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10
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Nattel S. N-type calcium channel blockade: a new approach to preventing sudden cardiac death? Cardiovasc Res 2014; 104:1-2. [DOI: 10.1093/cvr/cvu197] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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KATO TAKESHI, IWASAKI YUKI, DUKER GORAN, FJELLSTROM OLA, GIORDANETTO FABRIZIO, SUNDQVIST MONIKA, WALLIN ANITA, WANG QINGDONG, NATTEL STANLEY. Inefficacy of a Highly Selective T-Type Calcium Channel Blocker in Preventing Atrial Fibrillation Related Remodeling. J Cardiovasc Electrophysiol 2014; 25:531-536. [DOI: 10.1111/jce.12346] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2013] [Revised: 11/21/2013] [Accepted: 12/03/2013] [Indexed: 11/30/2022]
Affiliation(s)
- TAKESHI KATO
- Department of Medicine and Research Center; Montreal Heart Institute; University of Montreal; Montreal Quebec Canada
| | - YU-KI IWASAKI
- Department of Medicine and Research Center; Montreal Heart Institute; University of Montreal; Montreal Quebec Canada
| | - GORAN DUKER
- Departments of Bioscience; AstraZeneca R&D Mölndal; Mölndal Sweden
| | - OLA FJELLSTROM
- Medicinal Chemistry; AstraZeneca R&D Mölndal; Mölndal Sweden
| | | | - MONIKA SUNDQVIST
- DMPK, Cardiovascular & Metabolic Diseases iMed; AstraZeneca R&D Mölndal; Mölndal Sweden
| | - ANITA WALLIN
- DMPK, Cardiovascular & Metabolic Diseases iMed; AstraZeneca R&D Mölndal; Mölndal Sweden
| | - QING-DONG WANG
- Departments of Bioscience; AstraZeneca R&D Mölndal; Mölndal Sweden
| | - STANLEY NATTEL
- Department of Medicine and Research Center; Montreal Heart Institute; University of Montreal; Montreal Quebec Canada
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12
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Le Quang K, Benito B, Naud P, Qi XY, Shi YF, Tardif JC, Gillis MA, Dobrev D, Charpentier F, Nattel S. T-Type Calcium Current Contributes to Escape Automaticity and Governs the Occurrence of Lethal Arrhythmias After Atrioventricular Block in Mice. Circ Arrhythm Electrophysiol 2013; 6:799-808. [DOI: 10.1161/circep.113.000407] [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: 11/16/2022]
Affiliation(s)
- Khai Le Quang
- From the Department of Medicine and Research Centre, Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada (K.L.Q., B.B., P.N., X.Y.Q., Y.F.S., J.-C.T., M.-A.G., S.N.); Department of Medicine, Laval University, Quebec, Canada (K.L.Q.); IMIM Parc de Salut Mar, Hospital del Mar, Barcelona, Spain (B.B.); Institute of Pharmacology, University of Duisburg-Essen, Essen, Germany (D.D.); Division of Experimental Cardiology, University of Heidelberg, Heidelberg, Germany (D.D.); and
| | - Begoña Benito
- From the Department of Medicine and Research Centre, Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada (K.L.Q., B.B., P.N., X.Y.Q., Y.F.S., J.-C.T., M.-A.G., S.N.); Department of Medicine, Laval University, Quebec, Canada (K.L.Q.); IMIM Parc de Salut Mar, Hospital del Mar, Barcelona, Spain (B.B.); Institute of Pharmacology, University of Duisburg-Essen, Essen, Germany (D.D.); Division of Experimental Cardiology, University of Heidelberg, Heidelberg, Germany (D.D.); and
| | - Patrice Naud
- From the Department of Medicine and Research Centre, Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada (K.L.Q., B.B., P.N., X.Y.Q., Y.F.S., J.-C.T., M.-A.G., S.N.); Department of Medicine, Laval University, Quebec, Canada (K.L.Q.); IMIM Parc de Salut Mar, Hospital del Mar, Barcelona, Spain (B.B.); Institute of Pharmacology, University of Duisburg-Essen, Essen, Germany (D.D.); Division of Experimental Cardiology, University of Heidelberg, Heidelberg, Germany (D.D.); and
| | - Xiao Yan Qi
- From the Department of Medicine and Research Centre, Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada (K.L.Q., B.B., P.N., X.Y.Q., Y.F.S., J.-C.T., M.-A.G., S.N.); Department of Medicine, Laval University, Quebec, Canada (K.L.Q.); IMIM Parc de Salut Mar, Hospital del Mar, Barcelona, Spain (B.B.); Institute of Pharmacology, University of Duisburg-Essen, Essen, Germany (D.D.); Division of Experimental Cardiology, University of Heidelberg, Heidelberg, Germany (D.D.); and
| | - Yan Fen Shi
- From the Department of Medicine and Research Centre, Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada (K.L.Q., B.B., P.N., X.Y.Q., Y.F.S., J.-C.T., M.-A.G., S.N.); Department of Medicine, Laval University, Quebec, Canada (K.L.Q.); IMIM Parc de Salut Mar, Hospital del Mar, Barcelona, Spain (B.B.); Institute of Pharmacology, University of Duisburg-Essen, Essen, Germany (D.D.); Division of Experimental Cardiology, University of Heidelberg, Heidelberg, Germany (D.D.); and
| | - Jean-Claude Tardif
- From the Department of Medicine and Research Centre, Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada (K.L.Q., B.B., P.N., X.Y.Q., Y.F.S., J.-C.T., M.-A.G., S.N.); Department of Medicine, Laval University, Quebec, Canada (K.L.Q.); IMIM Parc de Salut Mar, Hospital del Mar, Barcelona, Spain (B.B.); Institute of Pharmacology, University of Duisburg-Essen, Essen, Germany (D.D.); Division of Experimental Cardiology, University of Heidelberg, Heidelberg, Germany (D.D.); and
| | - Marc-Antoine Gillis
- From the Department of Medicine and Research Centre, Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada (K.L.Q., B.B., P.N., X.Y.Q., Y.F.S., J.-C.T., M.-A.G., S.N.); Department of Medicine, Laval University, Quebec, Canada (K.L.Q.); IMIM Parc de Salut Mar, Hospital del Mar, Barcelona, Spain (B.B.); Institute of Pharmacology, University of Duisburg-Essen, Essen, Germany (D.D.); Division of Experimental Cardiology, University of Heidelberg, Heidelberg, Germany (D.D.); and
| | - Dobromir Dobrev
- From the Department of Medicine and Research Centre, Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada (K.L.Q., B.B., P.N., X.Y.Q., Y.F.S., J.-C.T., M.-A.G., S.N.); Department of Medicine, Laval University, Quebec, Canada (K.L.Q.); IMIM Parc de Salut Mar, Hospital del Mar, Barcelona, Spain (B.B.); Institute of Pharmacology, University of Duisburg-Essen, Essen, Germany (D.D.); Division of Experimental Cardiology, University of Heidelberg, Heidelberg, Germany (D.D.); and
| | - Flavien Charpentier
- From the Department of Medicine and Research Centre, Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada (K.L.Q., B.B., P.N., X.Y.Q., Y.F.S., J.-C.T., M.-A.G., S.N.); Department of Medicine, Laval University, Quebec, Canada (K.L.Q.); IMIM Parc de Salut Mar, Hospital del Mar, Barcelona, Spain (B.B.); Institute of Pharmacology, University of Duisburg-Essen, Essen, Germany (D.D.); Division of Experimental Cardiology, University of Heidelberg, Heidelberg, Germany (D.D.); and
| | - Stanley Nattel
- From the Department of Medicine and Research Centre, Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada (K.L.Q., B.B., P.N., X.Y.Q., Y.F.S., J.-C.T., M.-A.G., S.N.); Department of Medicine, Laval University, Quebec, Canada (K.L.Q.); IMIM Parc de Salut Mar, Hospital del Mar, Barcelona, Spain (B.B.); Institute of Pharmacology, University of Duisburg-Essen, Essen, Germany (D.D.); Division of Experimental Cardiology, University of Heidelberg, Heidelberg, Germany (D.D.); and
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Ca2+ channel and Na+/Ca2+ exchange localization in cardiac myocytes. J Mol Cell Cardiol 2013; 58:22-31. [DOI: 10.1016/j.yjmcc.2012.11.022] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2012] [Revised: 11/20/2012] [Accepted: 11/28/2012] [Indexed: 01/01/2023]
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T-type Ca2+ signalling downregulates MEK1/2 phosphorylation and cross-talk with the RAAS transcriptional response in cardiac myocytes. J Mol Cell Cardiol 2012; 53:291-8. [DOI: 10.1016/j.yjmcc.2012.05.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2012] [Revised: 05/09/2012] [Accepted: 05/10/2012] [Indexed: 12/23/2022]
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Zalvidea S, André L, Loyer X, Cassan C, Sainte-Marie Y, Thireau J, Sjaastad I, Heymes C, Pasquié JL, Cazorla O, Aimond F, Richard S. ACE inhibition prevents diastolic Ca2+ overload and loss of myofilament Ca2+ sensitivity after myocardial infarction. Curr Mol Med 2012; 12:206-17. [PMID: 22280358 DOI: 10.2174/156652412798889045] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2011] [Revised: 11/22/2011] [Accepted: 11/23/2011] [Indexed: 01/14/2023]
Abstract
Prevention of adverse cardiac remodeling after myocardial infarction (MI) remains a therapeutic challenge. Angiotensin-converting enzyme inhibitors (ACE-I) are a well-established first-line treatment. ACE-I delay fibrosis, but little is known about their molecular effects on cardiomyocytes. We investigated the effects of the ACE-I delapril on cardiomyocytes in a mouse model of heart failure (HF) after MI. Mice were randomly assigned to three groups: Sham, MI, and MI-D (6 weeks of treatment with a non-hypotensive dose of delapril started 24h after MI). Echocardiography and pressure-volume loops revealed that MI induced hypertrophy and dilation, and altered both contraction and relaxation of the left ventricle. At the cellular level, MI cardiomyocytes exhibited reduced contraction, slowed relaxation, increased diastolic Ca2+ levels, decreased Ca2+-transient amplitude, and diminished Ca2+ sensitivity of myofilaments. In MI-D mice, however, both mortality and cardiac remodeling were decreased when compared to non-treated MI mice. Delapril maintained cardiomyocyte contraction and relaxation, prevented diastolic Ca2+ overload and retained the normal Ca2+ sensitivity of contractile proteins. Delapril maintained SERCA2a activity through normalization of P-PLB/PLB (for both Ser16- PLB and Thr17-PLB) and PLB/SERCA2a ratios in cardiomyocytes, favoring normal reuptake of Ca2+ in the sarcoplasmic reticulum. In addition, delapril prevented defective cTnI function by normalizing the expression of PKC, enhanced in MI mice. In conclusion, early therapy with delapril after MI preserved the normal contraction/relaxation cycle of surviving cardiomyocytes with multiple direct effects on key intracellular mechanisms contributing to preserve cardiac function.
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Affiliation(s)
- S Zalvidea
- INSERM U-1046, Université Montpellier1 & Montpellier2, Montpellier, France
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Fabritz L, Herzig S. Can T-type calcium channels make a change of heart after myocardial infarction? Fiction or fact, and for better or for worse? Cardiovasc Res 2011; 91:373-5. [DOI: 10.1093/cvr/cvr177] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
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