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Domínguez F, Adler E, García-Pavía P. Alcoholic cardiomyopathy: an update. Eur Heart J 2024; 45:2294-2305. [PMID: 38848133 PMCID: PMC11231944 DOI: 10.1093/eurheartj/ehae362] [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: 09/04/2023] [Revised: 03/15/2024] [Accepted: 05/22/2024] [Indexed: 06/09/2024] Open
Abstract
Alcohol-induced cardiomyopathy (AC) is an acquired form of dilated cardiomyopathy (DCM) caused by prolonged and heavy alcohol intake in the absence of other causes. The amount of alcohol required to produce AC is generally considered as >80 g/day over 5 years, but there is still some controversy regarding this definition. This review on AC focuses on pathogenesis, which involves different mechanisms. Firstly, the direct toxic effect of ethanol promotes oxidative stress in the myocardium and activation of the renin-angiotensin system. Moreover, acetaldehyde, the best-studied metabolite of alcohol, can contribute to myocardial damage impairing actin-myosin interaction and producing mitochondrial dysfunction. Genetic factors are also involved in the pathogenesis of AC, with DCM-causing genetic variants in patients with AC, especially titin-truncating variants. These findings support a double-hit hypothesis in AC, combining genetics and environmental factors. The synergistic effect of alcohol with concomitant conditions such as hypertension or liver cirrhosis can be another contributing factor leading to AC. There are no specific cardiac signs and symptoms in AC as compared with other forms of DCM. However, natural history of AC differs from DCM and relies directly on alcohol withdrawal, as left ventricular ejection fraction recovery in abstainers is associated with an excellent prognosis. Thus, abstinence from alcohol is the most crucial step in treating AC, and specific therapies are available for this purpose. Otherwise, AC should be treated according to current guidelines of heart failure with reduced ejection fraction. Targeted therapies based on AC pathogenesis are currently being developed and could potentially improve AC treatment in the future.
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Affiliation(s)
- Fernando Domínguez
- Department of Cardiology, Heart Failure and Inherited Cardiac Diseases Unit, Hospital Universitario Puerta de Hierro Majadahonda, IDIPHISA, CIBERCV, Manuel de Falla, 2, Majadahonda, Madrid 28222, Spain
- Centro Nacional de Investigaciones Cardiovasculares Carlos III, Calle de Melchor Fernández Almagro, 3, Madrid, Spain
| | - Eric Adler
- Section Head of Heart Failure, University of California, San Diego, CA, USA
| | - Pablo García-Pavía
- Department of Cardiology, Heart Failure and Inherited Cardiac Diseases Unit, Hospital Universitario Puerta de Hierro Majadahonda, IDIPHISA, CIBERCV, Manuel de Falla, 2, Majadahonda, Madrid 28222, Spain
- Centro Nacional de Investigaciones Cardiovasculares Carlos III, Calle de Melchor Fernández Almagro, 3, Madrid, Spain
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Li J, Wang F, Liu X, Yang Z, Hua X, Zhu H, Valdivia CR, Xiao L, Gao S, Valdivia HH, Xiao L, Wang J. OpiCa1-PEG-PLGA nanomicelles antagonize acute heart failure induced by the cocktail of epinephrine and caffeine. Mater Today Bio 2023; 23:100859. [PMID: 38033368 PMCID: PMC10682124 DOI: 10.1016/j.mtbio.2023.100859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Revised: 10/17/2023] [Accepted: 11/07/2023] [Indexed: 12/02/2023] Open
Abstract
Background Reducing Ca2+ content in the sarcoplasmic reticulum (SR) through ryanodine receptors (RyRs) by calcin is a potential intervention strategy for the SR Ca2+ overload triggered by β-adrenergic stress in acute heart diseases. Methods OpiCal-PEG-PLGA nanomicelles were prepared by thin film dispersion, of which the antagonistic effects were observed using an acute heart failure model induced by epinephrine and caffeine in mice. In addition, cardiac targeting, self-stability as well as biotoxicity were determined. Results The synthesized OpiCa1-PEG-PLGA nanomicelles were elliptical with a particle size of 72.26 nm, a PDI value of 0.3, and a molecular weight of 10.39 kDa. The nanomicelles showed a significant antagonistic effect with 100 % survival rate to the death induced by epinephrine and caffeine, which was supported by echocardiography with significantly recovered heart rate, ejection fraction and left ventricular fractional shortening rate. The FITC labeled nanomicelles had a strong membrance penetrating capacity within 2 h and cardiac targeting within 12 h that was further confirmed by immunohistochemistry with a self-prepared OpiCa1 polyclonal antibody. Meanwhile, the nanomicelles can keep better stability and dispersibility in vitro at 4 °C rather than 20 °C or 37 °C, while maintain a low but stable plasma OpiCa1 concentration in vivo within 72 h. Finally, no obvious biotoxicities were observed by CCK-8, flow cytometry, H&E staining and blood biochemical examinations. Conclusion Our study also provide a novel nanodelivery pathway for targeting RyRs and antagonizing the SR Ca2+ disordered heart diseases by actively releasing SR Ca2+ through RyRs with calcin.
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Affiliation(s)
- Jun Li
- College of Veterinary Medicine, Shanxi Agricultural University, ShanXi, TaiGu, 030801, China
- Department of Occupational and Environmental Health, Faculty of Naval Medicine, Naval Medical University (Second Military Medical University), Shanghai, 200433, China
| | - Fei Wang
- Department of Occupational and Environmental Health, Faculty of Naval Medicine, Naval Medical University (Second Military Medical University), Shanghai, 200433, China
| | - Xinyan Liu
- Department of Traditional Chinese Medicine Surgery, The First Affiliated Hospital of the Navy Medical University (Changhai Hospital), Shanghai, 200433, China
| | - Zhixiao Yang
- Department of Occupational and Environmental Health, Faculty of Naval Medicine, Naval Medical University (Second Military Medical University), Shanghai, 200433, China
- Teaching and Research Department of Chinese Pharmacy, Yunnan Traditional Chinese Medicine, YunNan, KunMing, 650500, China
| | - Xiaoyu Hua
- Department of Occupational and Environmental Health, Faculty of Naval Medicine, Naval Medical University (Second Military Medical University), Shanghai, 200433, China
| | - Hongqiao Zhu
- Department of Traditional Chinese Medicine Surgery, The First Affiliated Hospital of the Navy Medical University (Changhai Hospital), Shanghai, 200433, China
| | - Carmen R. Valdivia
- Department of Medicine and Cardiovascular Research Center, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI, USA
| | - Li Xiao
- Department of Medicine and Cardiovascular Research Center, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI, USA
- Department of Forensic Toxicological Analysis, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, 610065, China
| | - Songyu Gao
- Department of Occupational and Environmental Health, Faculty of Naval Medicine, Naval Medical University (Second Military Medical University), Shanghai, 200433, China
| | - Héctor H. Valdivia
- Department of Medicine and Cardiovascular Research Center, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI, USA
| | - Liang Xiao
- Department of Occupational and Environmental Health, Faculty of Naval Medicine, Naval Medical University (Second Military Medical University), Shanghai, 200433, China
| | - Jinming Wang
- College of Veterinary Medicine, Shanxi Agricultural University, ShanXi, TaiGu, 030801, China
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3
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Lebek S, Caravia XM, Chemello F, Tan W, McAnally JR, Chen K, Xu L, Liu N, Bassel-Duby R, Olson EN. Elimination of CaMKIIδ Autophosphorylation by CRISPR-Cas9 Base Editing Improves Survival and Cardiac Function in Heart Failure in Mice. Circulation 2023; 148:1490-1504. [PMID: 37712250 PMCID: PMC10842988 DOI: 10.1161/circulationaha.123.065117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Accepted: 08/22/2023] [Indexed: 09/16/2023]
Abstract
BACKGROUND Cardiovascular diseases are the main cause of worldwide morbidity and mortality, highlighting the need for new therapeutic strategies. Autophosphorylation and subsequent overactivation of the cardiac stress-responsive enzyme CaMKIIδ (Ca2+/calmodulin-dependent protein kinase IIδ) serves as a central driver of multiple cardiac disorders. METHODS To develop a comprehensive therapy for heart failure, we used CRISPR-Cas9 adenine base editing to ablate the autophosphorylation site of CaMKIIδ. We generated mice harboring a phospho-resistant CaMKIIδ mutation in the germline and subjected these mice to severe transverse aortic constriction, a model for heart failure. Cardiac function, transcriptional changes, apoptosis, and fibrosis were assessed by echocardiography, RNA sequencing, terminal deoxynucleotidyl transferase dUTP nick end labeling staining, and standard histology, respectively. Specificity toward CaMKIIδ gene editing was assessed using deep amplicon sequencing. Cellular Ca2+ homeostasis was analyzed using epifluorescence microscopy in Fura-2-loaded cardiomyocytes. RESULTS Within 2 weeks after severe transverse aortic constriction surgery, 65% of all wild-type mice died, and the surviving mice showed dramatically impaired cardiac function. In contrast to wild-type mice, CaMKIIδ phospho-resistant gene-edited mice showed a mortality rate of only 11% and exhibited substantially improved cardiac function after severe transverse aortic constriction. Moreover, CaMKIIδ phospho-resistant mice were protected from heart failure-related aberrant changes in cardiac gene expression, myocardial apoptosis, and subsequent fibrosis, which were observed in wild-type mice after severe transverse aortic constriction. On the basis of identical mouse and human genome sequences encoding the autophosphorylation site of CaMKIIδ, we deployed the same editing strategy to modify this pathogenic site in human induced pluripotent stem cells. It is notable that we detected a >2000-fold increased specificity for editing of CaMKIIδ compared with other CaMKII isoforms, which is an important safety feature. While wild-type cardiomyocytes showed impaired Ca2+ transients and an increased frequency of arrhythmias after chronic β-adrenergic stress, CaMKIIδ-edited cardiomyocytes were protected from these adverse responses. CONCLUSIONS Ablation of CaMKIIδ autophosphorylation by adenine base editing may offer a potential broad-based therapeutic concept for human cardiac disease.
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Affiliation(s)
- Simon Lebek
- Department of Molecular Biology, University of Texas Southwestern Medical Center; Dallas, TX USA
- Hamon Center for Regenerative Science and Medicine, University of Texas Southwestern Medical Center; Dallas, TX USA
- Department of Internal Medicine II, University Hospital Regensburg; Regensburg, Germany
| | - Xurde M. Caravia
- Department of Molecular Biology, University of Texas Southwestern Medical Center; Dallas, TX USA
- Hamon Center for Regenerative Science and Medicine, University of Texas Southwestern Medical Center; Dallas, TX USA
| | - Francesco Chemello
- Department of Molecular Biology, University of Texas Southwestern Medical Center; Dallas, TX USA
- Hamon Center for Regenerative Science and Medicine, University of Texas Southwestern Medical Center; Dallas, TX USA
| | - Wei Tan
- Department of Molecular Biology, University of Texas Southwestern Medical Center; Dallas, TX USA
- Hamon Center for Regenerative Science and Medicine, University of Texas Southwestern Medical Center; Dallas, TX USA
| | - John R. McAnally
- Department of Molecular Biology, University of Texas Southwestern Medical Center; Dallas, TX USA
- Hamon Center for Regenerative Science and Medicine, University of Texas Southwestern Medical Center; Dallas, TX USA
| | - Kenian Chen
- Quantitative Biomedical Research Center, Department of Population and Data Sciences, University of Texas Southwestern Medical Center; Dallas, TX USA
| | - Lin Xu
- Quantitative Biomedical Research Center, Department of Population and Data Sciences, University of Texas Southwestern Medical Center; Dallas, TX USA
| | - Ning Liu
- Department of Molecular Biology, University of Texas Southwestern Medical Center; Dallas, TX USA
- Hamon Center for Regenerative Science and Medicine, University of Texas Southwestern Medical Center; Dallas, TX USA
| | - Rhonda Bassel-Duby
- Department of Molecular Biology, University of Texas Southwestern Medical Center; Dallas, TX USA
- Hamon Center for Regenerative Science and Medicine, University of Texas Southwestern Medical Center; Dallas, TX USA
| | - Eric N. Olson
- Department of Molecular Biology, University of Texas Southwestern Medical Center; Dallas, TX USA
- Hamon Center for Regenerative Science and Medicine, University of Texas Southwestern Medical Center; Dallas, TX USA
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Mustroph J, Baier MJ, Unsin D, Provaznik Z, Kozakov K, Lebek S, Tarnowski D, Schildt S, Voigt N, Wagner S, Maier LS, Neef S. Ethanol-Induced Atrial Fibrillation Results From Late INa and Can Be Prevented by Ranolazine. Circulation 2023; 148:698-700. [PMID: 37603603 PMCID: PMC10437457 DOI: 10.1161/circulationaha.123.064561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/23/2023]
Affiliation(s)
- Julian Mustroph
- Departments of Internal Medicine II (J.M., M.J.B., D.U., S.L., D.T., S.S., S.W., L.S.M., S.N.), University Medical Center Regensburg, Germany
| | - Maria J. Baier
- Departments of Internal Medicine II (J.M., M.J.B., D.U., S.L., D.T., S.S., S.W., L.S.M., S.N.), University Medical Center Regensburg, Germany
| | - Denise Unsin
- Departments of Internal Medicine II (J.M., M.J.B., D.U., S.L., D.T., S.S., S.W., L.S.M., S.N.), University Medical Center Regensburg, Germany
| | - Zdenek Provaznik
- Cardiothoracic Surgery (Z.P., K.K.), University Medical Center Regensburg, Germany
| | - Kostiantyn Kozakov
- Cardiothoracic Surgery (Z.P., K.K.), University Medical Center Regensburg, Germany
| | - Simon Lebek
- Departments of Internal Medicine II (J.M., M.J.B., D.U., S.L., D.T., S.S., S.W., L.S.M., S.N.), University Medical Center Regensburg, Germany
| | - Daniel Tarnowski
- Departments of Internal Medicine II (J.M., M.J.B., D.U., S.L., D.T., S.S., S.W., L.S.M., S.N.), University Medical Center Regensburg, Germany
| | - Sönke Schildt
- Departments of Internal Medicine II (J.M., M.J.B., D.U., S.L., D.T., S.S., S.W., L.S.M., S.N.), University Medical Center Regensburg, Germany
| | - Niels Voigt
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Georg August University Göttingen, Germany (N.V.)
- DZHK (German Center for Cardiovascular Research), partner site Göttingen, Germany (N.V.)
- Cluster of Excellence “Multiscale Bioimaging: From Molecular Machines to Networks of Excitable Cells” (MBExC), University of Göttingen, Germany (N.V.)
| | - Stefan Wagner
- Departments of Internal Medicine II (J.M., M.J.B., D.U., S.L., D.T., S.S., S.W., L.S.M., S.N.), University Medical Center Regensburg, Germany
| | - Lars S. Maier
- Departments of Internal Medicine II (J.M., M.J.B., D.U., S.L., D.T., S.S., S.W., L.S.M., S.N.), University Medical Center Regensburg, Germany
| | - Stefan Neef
- Departments of Internal Medicine II (J.M., M.J.B., D.U., S.L., D.T., S.S., S.W., L.S.M., S.N.), University Medical Center Regensburg, Germany
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Lee AS, Sung YL, Pan SH, Sung KT, Su CH, Ding SL, Lu YJ, Hsieh CL, Chen YF, Liu CC, Chen WY, Chen XR, Chung FP, Wang SW, Chen CH, Mochly-Rosen D, Hung CL, Yeh HI, Lin SF. A Common East Asian aldehyde dehydrogenase 2*2 variant promotes ventricular arrhythmia with chronic light-to-moderate alcohol use in mice. Commun Biol 2023; 6:610. [PMID: 37280327 PMCID: PMC10244406 DOI: 10.1038/s42003-023-04985-x] [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: 02/25/2022] [Accepted: 05/26/2023] [Indexed: 06/08/2023] Open
Abstract
Chronic heavy alcohol use is associated with lethal arrhythmias. Whether common East Asian-specific aldehyde dehydrogenase deficiency (ALDH2*2) contributes to arrhythmogenesis caused by low level alcohol use remains unclear. Here we show 59 habitual alcohol users carrying ALDH2 rs671 have longer QT interval (corrected) and higher ventricular tachyarrhythmia events compared with 137 ALDH2 wild-type (Wt) habitual alcohol users and 57 alcohol non-users. Notably, we observe QT prolongation and a higher risk of premature ventricular contractions among human ALDH2 variants showing habitual light-to-moderate alcohol consumption. We recapitulate a human electrophysiological QT prolongation phenotype using a mouse ALDH2*2 knock-in (KI) model treated with 4% ethanol, which shows markedly reduced total amount of connexin43 albeit increased lateralization accompanied by markedly downregulated sarcolemmal Nav1.5, Kv1.4 and Kv4.2 expressions compared to EtOH-treated Wt mice. Whole-cell patch-clamps reveal a more pronounced action potential prolongation in EtOH-treated ALDH2*2 KI mice. By programmed electrical stimulation, rotors are only provokable in EtOH-treated ALDH2*2 KI mice along with higher number and duration of ventricular arrhythmia episodes. The present research helps formulate safe alcohol drinking guideline for ALDH2 deficient population and develop novel protective agents for these subjects.
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Affiliation(s)
- An-Sheng Lee
- Department of Medicine, MacKay Medical College, New Taipei, Taiwan
- Division of Cardiovascular Medicine, China Medical University Hospital, Taichung, Taiwan
| | - Yen-Ling Sung
- Institute of Biomedical Engineering, College of Electrical and Computer Engineering, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
- Graduate Institute of Biomedical Optomechatronics, Taipei Medical University, Taipei, Taiwan
| | - Szu-Hua Pan
- Graduate Institute of Medical Genomics and Proteomics, College of Medicine, National Taiwan University, Taipei, Taiwan
- Genome and Systems Biology Degree Program, National Taiwan University and Academia Sinica, Taipei, Taiwan
- Doctoral Degree Program of Translational Medicine, National Taiwan University, Taipei, Taiwan
| | - Kuo-Tzu Sung
- Department of Medicine, MacKay Medical College, New Taipei, Taiwan
- Division of Cardiology, Departments of Internal Medicine, MacKay Memorial Hospital, Taipei, Taiwan
| | - Cheng-Huang Su
- Department of Medicine, MacKay Medical College, New Taipei, Taiwan
- Division of Cardiology, Departments of Internal Medicine, MacKay Memorial Hospital, Taipei, Taiwan
| | - Shiao-Li Ding
- Department of Medical Research, MacKay Memorial Hospital, New Taipei, Taiwan
| | - Ying-Jui Lu
- Department of Medical Research, MacKay Memorial Hospital, New Taipei, Taiwan
| | - Chin-Ling Hsieh
- Department of Medical Research, MacKay Memorial Hospital, New Taipei, Taiwan
| | - Yun-Fang Chen
- Department of Medicine, MacKay Medical College, New Taipei, Taiwan
| | - Chuan-Chuan Liu
- Department of Physiology Examination, MacKay Memorial Hospital, New Taipei, Taiwan
| | - Wei-Yu Chen
- Department of Medicine, MacKay Medical College, New Taipei, Taiwan
| | - Xuan-Ren Chen
- Graduate Institute of Medical Genomics and Proteomics, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Fa-Po Chung
- Heart Rhythm Center and Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
- Department of Medicine, National Yang Ming Chiao Tung University, School of Medicine, Taipei, Taiwan
| | - Shih-Wei Wang
- Department of Medicine, MacKay Medical College, New Taipei, Taiwan
- Institute of Biomedical Sciences, MacKay Medical College, New Taipei, Taiwan
| | - Che-Hong Chen
- Department of Chemical and Systems Biology, Stanford University, School of Medicine, Stanford, CA, USA
| | - Daria Mochly-Rosen
- Department of Chemical and Systems Biology, Stanford University, School of Medicine, Stanford, CA, USA
| | - Chung-Lieh Hung
- Department of Medicine, MacKay Medical College, New Taipei, Taiwan.
- Division of Cardiology, Departments of Internal Medicine, MacKay Memorial Hospital, Taipei, Taiwan.
- Institute of Biomedical Sciences, MacKay Medical College, New Taipei, Taiwan.
| | - Hung-I Yeh
- Department of Medicine, MacKay Medical College, New Taipei, Taiwan.
- Division of Cardiology, Departments of Internal Medicine, MacKay Memorial Hospital, Taipei, Taiwan.
| | - Shien-Fong Lin
- Institute of Biomedical Engineering, College of Electrical and Computer Engineering, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
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Prokofiev II, Kustova MV, Nesterova AA, Perfilova VN, Khusainova GH, Borodkina LE, Tivon YV, Tyurenkov IN, Kataev VA, Latypova GM. Solid herbal extract of Primula veris L. improves morphofunctional condition of rats’ myocardium in chronic alcohol intoxicat. J Tradit Complement Med 2023; 13:306-314. [PMID: 37128197 PMCID: PMC10148137 DOI: 10.1016/j.jtcme.2023.02.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 11/05/2022] [Accepted: 02/20/2023] [Indexed: 02/24/2023] Open
Abstract
Background and aim Chronic alcohol intoxication (CAI) induces heart damage. One of the promising ways of its treatment involves the administration of herbal medicinal products. The purpose of this study was to explore the effect of solid herbal extract of Primula veris L. (PVSHE) on the morphofunctional changes in rats' myocardium after CAI. Experimental procedure CAI was simulated for 24 weeks. Loading testing was used to assess the functional condition of the heart, the functional assessment of mitochondria was based on the polarographic determination of oxygen consumption rate and determination of the indices of lipid peroxidation and antioxidant enzymes activity. We performed a microscopic examination of the left ventricle following the standard protocol of histological processing and h&e staining. Results and conclusion PVSHE restricts the toxic effects of ethanol on the heart which was indicated by a higher rise in the rates of myocardial contraction (by an average of 3.9 times, P < 0.05) and relaxation (2.6 times under volume load, P < 0.05), LVP (by an average of 1.7 times, P < 0.05) and MISP (by an average of 1.5 times, P < 0.05). PVSHE caused an improvement in the functional state of rats' cardiac mitochondria exposed to CAI, which was demonstrated by on average 1.3-1.4 times (P < 0.05) as high RCR as compared to the control group. The histological examination of the myocardium of the animals treated with PVSHE showed the increase in the volume fraction of cardiac myocytes, and a 31.2% (P < 0.05) decline in the interstitial volume. Therefore, PVSHE has a protective effect on the heart after CAI.
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Hegner P, Lebek S, Schaner B, Ofner F, Gugg M, Maier LS, Arzt M, Wagner S. CaMKII-Dependent Contractile Dysfunction and Pro-Arrhythmic Activity in a Mouse Model of Obstructive Sleep Apnea. Antioxidants (Basel) 2023; 12:antiox12020315. [PMID: 36829874 PMCID: PMC9952298 DOI: 10.3390/antiox12020315] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 01/23/2023] [Accepted: 01/25/2023] [Indexed: 01/31/2023] Open
Abstract
Left ventricular contractile dysfunction and arrhythmias frequently occur in patients with sleep-disordered breathing (SDB). The CaMKII-dependent dysregulation of cellular Ca homeostasis has recently been described in SDB patients, but these studies only partly explain the mechanism and are limited by the patients' heterogeneity. Here, we analyzed contractile function and Ca homeostasis in a mouse model of obstructive sleep apnea (OSA) that is not limited by confounding comorbidities. OSA was induced by artificial tongue enlargement with polytetrafluorethylene (PTFE) injection into the tongue of wildtype mice and mice with a genetic ablation of the oxidative activation sites of CaMKII (MMVV knock-in). After eight weeks, cardiac function was assessed with echocardiography. Reactive oxygen species (ROS) and Ca transients were measured using confocal and epifluorescence microscopy, respectively. Wildtype PTFE mice exhibited an impaired ejection fraction, while MMVV PTFE mice were fully protected. As expected, isolated cardiomyocytes from PTFE mice showed increased ROS production. We further observed decreased levels of steady-state Ca transients, decreased levels of caffeine-induced Ca transients, and increased pro-arrhythmic activity (defined as deviations from the diastolic Ca baseline) only in wildtype but not in MMVV PTFE mice. In summary, in the absence of any comorbidities, OSA was associated with contractile dysfunction and pro-arrhythmic activity and the inhibition of the oxidative activation of CaMKII conveyed cardioprotection, which may have therapeutic implications.
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Affiliation(s)
- Philipp Hegner
- Department of Internal Medicine II, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Simon Lebek
- Department of Internal Medicine II, University Hospital Regensburg, 93053 Regensburg, Germany
- Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Benedikt Schaner
- Department of Internal Medicine II, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Florian Ofner
- Department of Internal Medicine II, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Mathias Gugg
- Department of Internal Medicine II, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Lars Siegfried Maier
- Department of Internal Medicine II, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Michael Arzt
- Department of Internal Medicine II, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Stefan Wagner
- Department of Internal Medicine II, University Hospital Regensburg, 93053 Regensburg, Germany
- Correspondence:
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8
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Reyes Gaido OE, Nkashama LJ, Schole KL, Wang Q, Umapathi P, Mesubi OO, Konstantinidis K, Luczak ED, Anderson ME. CaMKII as a Therapeutic Target in Cardiovascular Disease. Annu Rev Pharmacol Toxicol 2023; 63:249-272. [PMID: 35973713 PMCID: PMC11019858 DOI: 10.1146/annurev-pharmtox-051421-111814] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
CaMKII (the multifunctional Ca2+ and calmodulin-dependent protein kinase II) is a highly validated signal for promoting a variety of common diseases, particularly in the cardiovascular system. Despite substantial amounts of convincing preclinical data, CaMKII inhibitors have yet to emerge in clinical practice. Therapeutic inhibition is challenged by the diversity of CaMKII isoforms and splice variants and by physiological CaMKII activity that contributes to learning and memory. Thus, uncoupling the harmful and beneficial aspects of CaMKII will be paramount to developing effective therapies. In the last decade, several targeting strategies have emerged, including small molecules, peptides, and nucleotides, which hold promise in discriminating pathological from physiological CaMKII activity. Here we review the cellular and molecular biology of CaMKII, discuss its role in physiological and pathological signaling, and consider new findings and approaches for developing CaMKII therapeutics.
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Affiliation(s)
- Oscar E Reyes Gaido
- Department of Medicine, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA;
| | | | - Kate L Schole
- Department of Medicine, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA;
| | - Qinchuan Wang
- Department of Medicine, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA;
| | - Priya Umapathi
- Department of Medicine, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA;
| | - Olurotimi O Mesubi
- Department of Medicine, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA;
| | - Klitos Konstantinidis
- Department of Medicine, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA;
| | - Elizabeth D Luczak
- Department of Medicine, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA;
| | - Mark E Anderson
- Department of Medicine, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA;
- Departments of Physiology and Genetic Medicine and Program in Cellular and Molecular Medicine, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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9
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Huang YH, Chen YC, Lai HC. Acute cardiopulmonary decompensation following ethanol sclerotherapy under general anesthesia. JOURNAL OF MEDICAL SCIENCES 2023. [DOI: 10.4103/jmedsci.jmedsci_369_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023] Open
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10
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Kustova MV, Perfilova VN, Prokofiev II, Musyko EA, Kucheryavenko AS, Kusnetsova EE, Tsetsera DE, Tyurenkov IN. Pharmacological correction of the sequelae of acute alcohol-induced myocardial damage with new derivatives of neuroactive amino acids coupled with the blockade of the neuronal NO synthase isoform. RESEARCH RESULTS IN PHARMACOLOGY 2022. [DOI: 10.3897/rrpharmacology.8.90241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023] Open
Abstract
Introduction: Acute alcohol intoxication (AAI) induces a number of myocardial disorders, which result in mitochondrial dysfunction in cardiomyocytes, oxidative stress, and decreased cardiac contractility. Nitric oxide produced by the nNOS is one of the major modulators of cardiac activity. New derivatives of GABA (RSPU-260 compound) and glutamate (glufimet) can be potentially regarded as such agents as the interaction between the NO system and the GABA and glutamatergic systems has been proved.
Materials and methods: All the studies were performed on female white Wistar rats, aged 10 months, whose weight was 280–320g AAI intoxication was modeled of 32% ethanol (gavage, 4g/kg).
Results and discussion: Glufimet and the RSPU-260 compound caused a significant improvement in myocardial contractility, increased oxygen consumption in the V3 state according to Chance, raised the respiratory control ratio and decreased the intensity of LPO intensity. Their effectiveness exceeded that of mildronate, their comparator. nNOS inhibition resulted in a pronounced aggravation of oxidative stress implicated in MDA accumulation in cardiac mitochondria and decreased activity of SOD; myocardial contractility and mitochondrial function indicators did not show a significant difference from the control group. The compounds under study coupled with nNOS inhibition had a cardioprotective effect.
Conclusion: Glufimet and the RSPU-260 compound, derivatives of neuroactive amino acids, have a pronounced cardioprotective effect, restrict LPO processes, enhance SOD activity, improve the mitochondrial respiratory function after acute alcohol intoxication when coupled with neuronal NO-synthase inhibition, the expression of which persists after AAI.
Graphical abstract:
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11
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Alleyne J, Dopico AM. Alcohol Use Disorders and Their Harmful Effects on the Contractility of Skeletal, Cardiac and Smooth Muscles. ADVANCES IN DRUG AND ALCOHOL RESEARCH 2021; 1:10011. [PMID: 35169771 PMCID: PMC8843239 DOI: 10.3389/adar.2021.10011] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Accepted: 09/21/2021] [Indexed: 06/14/2023]
Abstract
Alcohol misuse has deleterious effects on personal health, family, societal units, and global economies. Moreover, alcohol misuse usually leads to several diseases and conditions, including alcoholism, which is a chronic condition and a form of addiction. Alcohol misuse, whether as acute intoxication or alcoholism, adversely affects skeletal, cardiac and/or smooth muscle contraction. Ethanol (ethyl alcohol) is the main effector of alcohol-induced dysregulation of muscle contractility, regardless of alcoholic beverage type or the ethanol metabolite (with acetaldehyde being a notable exception). Ethanol, however, is a simple and "promiscuous" ligand that affects many targets to mediate a single biological effect. In this review, we firstly summarize the processes of excitation-contraction coupling and calcium homeostasis which are critical for the regulation of contractility in all muscle types. Secondly, we present the effects of acute and chronic alcohol exposure on the contractility of skeletal, cardiac, and vascular/ nonvascular smooth muscles. Distinctions are made between in vivo and in vitro experiments, intoxicating vs. sub-intoxicating ethanol levels, and human subjects vs. animal models. The differential effects of alcohol on biological sexes are also examined. Lastly, we show that alcohol-mediated disruption of muscle contractility, involves a wide variety of molecular players, including contractile proteins, their regulatory factors, membrane ion channels and pumps, and several signaling molecules. Clear identification of these molecular players constitutes a first step for a rationale design of pharmacotherapeutics to prevent, ameliorate and/or reverse the negative effects of alcohol on muscle contractility.
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Affiliation(s)
| | - Alex M. Dopico
- Department of Pharmacology, Addiction Science, and Toxicology, College of Medicine, The University of Tennessee Health Science Center, Memphis, TN, United States
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12
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Chronic Ethanol Exposure Induces Deleterious Changes in Cardiomyocytes Derived from Human Induced Pluripotent Stem Cells. Stem Cell Rev Rep 2021; 17:2314-2331. [PMID: 34564802 DOI: 10.1007/s12015-021-10267-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/17/2021] [Indexed: 10/20/2022]
Abstract
Chronic alcohol consumption in adults can induce cardiomyopathy, arrhythmias, and heart failure. In newborns, prenatal alcohol exposure can increase the risk of congenital heart diseases. Understanding biological mechanisms involved in the long-term alcohol exposure-induced cardiotoxicity is pivotal to the discovery of therapeutic strategies. In this study, cardiomyocytes derived from human pluripotent stem cells (hiPSC-CMs) were treated with clinically relevant doses of ethanol for various durations up to 5 weeks. The treated cells were characterized for their cellular properties and functions, and global proteomic profiling was conducted to understand the molecular changes associated with long-term ethanol exposure. Increased cell death, oxidative stress, deranged Ca2+ handling, abnormal action potential, altered contractility, and suppressed structure development were observed in ethanol-treated cells. Many dysregulated proteins identified by global proteomic profiling were involved in apoptosis, heart contraction, and extracellular collagen matrix. In addition, several signaling pathways including the Wnt and TGFβ signaling pathways were affected due to long-term ethanol treatment. Therefore, chronic ethanol treatment of hiPSC-CMs induces cardiotoxicity, impairs cardiac functions, and alters protein expression and signaling pathways. This study demonstrates the utility of hiPSC-CMs as a novel model for chronic alcohol exposure study and provides the molecular mechanisms associated with long-term alcohol exposure in human cardiomyocytes.
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13
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Deng H, Yu B, Li Y. Tanshinone IIA alleviates acute ethanol-induced myocardial apoptosis mainly through inhibiting the expression of PDCD4 and activating the PI3K/Akt pathway. Phytother Res 2021; 35:4309-4323. [PMID: 34169595 DOI: 10.1002/ptr.7102] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 02/28/2021] [Accepted: 03/09/2021] [Indexed: 12/26/2022]
Abstract
Myocardial apoptosis contributes to acute ethanol-induced cardiac injury. Improving immoderate apoptosis has become the potential therapeutic strategy for acute ethanol-induced heart damage. Previous studies reported that Tanshinone IIA (Tan IIA), a key ingredient extracted from Salvia miltiorrhiza Bunge, performed an anti-apoptotic role against acute ethanol-related cell damage. In this study, we investigated whether Tan IIA protected the acute ethanol-induced cardiac damage in vivo and in vitro. C57BL/6 mice were treated with acute ethanol and then treated with Tan IIA. The results showed that Tan IIA significantly improved heart function and blocked myocardial apoptosis. Acute ethanol exposure induced H9C2 cells apoptosis. Treatment with Tan IIA abrogated acute ethanol-induced H9C2 cells apoptosis. Mechanistically, Tan IIA inhibited apoptosis by downregulating the programmed cell death protein 4 (PDCD4) expression and activating the phosphoinositide 3-kinase (PI3K)/Akt pathway. Furthermore, PDCD4 overexpression abrogated Tan IIA-mediated anti-apoptotic role and activation on the PI3K/Akt pathway. Interestingly, the PI3K inhibitor (LY294002) application significantly attenuated the main protective effects of Tan IIA. In conclusion, Tan IIA improves acute ethanol-induced myocardial apoptosis mainly through regulating the PDCD4 expression and activating the PI3K/Akt signaling pathway. We provide evidence that Tan IIA is a new treatment approach for acute ethanol-induced heart damage.
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Affiliation(s)
- Hanyu Deng
- Department of Cardiology, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Bo Yu
- Department of Cardiology, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Yang Li
- Department of Cardiology, The First Affiliated Hospital of China Medical University, Shenyang, China
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14
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do Vale GT, da Silva CBP, Sousa AH, Gonzaga NA, Parente JM, Araújo KM, Castro MM, Tirapelli CR. Nebivolol Prevents Up-Regulation of Nox2/NADPH Oxidase and Lipoperoxidation in the Early Stages of Ethanol-Induced Cardiac Toxicity. Cardiovasc Toxicol 2021; 21:224-235. [PMID: 33067693 DOI: 10.1007/s12012-020-09614-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Accepted: 10/10/2020] [Indexed: 12/13/2022]
Abstract
Changes in redox state are described in the early stages of ethanol-induced cardiac toxicity. Here, we evaluated whether nebivolol would abrogate ethanol-induced redox imbalance in the heart. Male Wistar rats were treated with a solution of ethanol (20% v/v) for 3 weeks. Treatment with nebivolol (10 mg/kg/day; p.o. gavage) prevented the increase of both superoxide (O2•-) and thiobarbituric acid reactive substances (TBARS) in the left ventricle of rats chronically treated with ethanol. Neither ethanol nor nebivolol affected the expression of Nox4, p47phox, or Rac-1. Nebivolol prevented ethanol-induced increase of Nox2 expression in the left ventricle. Superoxide dismutase (SOD) activity as well as the concentration of reduced glutathione (GSH) was not altered by ethanol or nebivolol. Augmented catalase activity was detected in the left ventricle of both ethanol- and nebivolol-treated rats. Treatment with nebivolol, but not ethanol increased eNOS expression in the left ventricle. No changes in the activity of matrix metalloproteinase (MMP)2 or in the expressions of MMP2, MMP9, and tissue inhibitor metalloproteinase (TIMP)1 were detected after treatment with ethanol or nebivolol. However, ethanol increased the expression of TIMP2, and this response was prevented by nebivolol. Our results provided novel insights into the mechanisms underlying the early stages of the cardiac injury induced by ethanol consumption. We demonstrated that Nox2/NADPH oxidase-derived ROS play a role in ethanol-induced lipoperoxidation and that this response was prevented by nebivolol. In addition, we provided evidence that MMPs are not activated in the early stages of ethanol-induced cardiac toxicity.
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Affiliation(s)
- Gabriel T do Vale
- Universidade do Estado de Minas Gerais (UEMG), Passos, MG, Brazil
- Programa de Pós-Graduação em Farmacologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo (USP), Ribeirão Preto, SP, Brazil
| | - Carla B P da Silva
- Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Programa de Pós-graduação em Toxicologia, USP, Ribeirão Preto, SP, Brazil
- Laboratório de Farmacologia Cardiovascular, DEPCH, Escola de Enfermagem de Ribeirão Preto, Universidade de São Paulo, USP, Avenida Bandeirantes 3900, CEP 14040-902, Ribeirão Preto, SP, Brazil
| | - Arthur H Sousa
- Laboratório de Farmacologia Cardiovascular, DEPCH, Escola de Enfermagem de Ribeirão Preto, Universidade de São Paulo, USP, Avenida Bandeirantes 3900, CEP 14040-902, Ribeirão Preto, SP, Brazil
| | - Natália A Gonzaga
- Programa de Pós-Graduação em Farmacologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo (USP), Ribeirão Preto, SP, Brazil
- Laboratório de Farmacologia Cardiovascular, DEPCH, Escola de Enfermagem de Ribeirão Preto, Universidade de São Paulo, USP, Avenida Bandeirantes 3900, CEP 14040-902, Ribeirão Preto, SP, Brazil
| | - Juliana M Parente
- Programa de Pós-Graduação em Farmacologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo (USP), Ribeirão Preto, SP, Brazil
| | - Katiúscia M Araújo
- Laboratório de Farmacologia Cardiovascular, DEPCH, Escola de Enfermagem de Ribeirão Preto, Universidade de São Paulo, USP, Avenida Bandeirantes 3900, CEP 14040-902, Ribeirão Preto, SP, Brazil
| | - Michele M Castro
- Programa de Pós-Graduação em Farmacologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo (USP), Ribeirão Preto, SP, Brazil
| | - Carlos R Tirapelli
- Laboratório de Farmacologia Cardiovascular, DEPCH, Escola de Enfermagem de Ribeirão Preto, Universidade de São Paulo, USP, Avenida Bandeirantes 3900, CEP 14040-902, Ribeirão Preto, SP, Brazil.
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15
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Abstract
Atrial fibrillation (AF) contributes to morbidity and mortality of millions of individuals. Its molecular, cellular, neurohumoral, and hemodynamic pathophysiological mechanisms are complex, and there is increasing awareness that a wide range of comorbidities can contribute to AF-promoting atrial remodeling. Moreover, recent research has highlighted that AF risk is not constant and that the temporal variation in concomitant conditions contributes to the complexity of AF dynamics. In this review, we provide an overview of fundamental AF mechanisms related to established and emerging comorbidities or risk factors and their role in the AF-promoting effects. We focus on the accumulating evidence for the relevance of temporally dynamic changes in these risk factors and the consequence for AF initiation and maintenance. Finally, we highlight the important implications for future research and clinical practice resulting from the dynamic interaction between AF risk factors and mechanisms.
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Affiliation(s)
- Jordi Heijman
- Department of Cardiology, Cardiovascular Research Institute Maastricht, Maastricht University, 6200 MD Maastricht, The Netherlands;
| | - Dominik Linz
- Department of Cardiology, Cardiovascular Research Institute Maastricht, Maastricht University, 6200 MD Maastricht, The Netherlands; .,Maastricht University Medical Center+, 6229 HX Maastricht, The Netherlands; .,Department of Cardiology, Radboud University Medical Centre, 6525 GA Nijmegen, The Netherlands.,Centre for Heart Rhythm Disorders, University of Adelaide and Royal Adelaide Hospital, 5005 Adelaide, South Australia, Australia
| | - Ulrich Schotten
- Department of Cardiology, Cardiovascular Research Institute Maastricht, Maastricht University, 6200 MD Maastricht, The Netherlands; .,Department of Physiology, Cardiovascular Research Institute Maastricht, Maastricht University, 6200 MD Maastricht, The Netherlands;
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16
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Liu R, Sun F, Forghani P, Armand LC, Rampoldi A, Li D, Wu R, Xu C. Proteomic Profiling Reveals Roles of Stress Response, Ca 2+ Transient Dysregulation, and Novel Signaling Pathways in Alcohol-Induced Cardiotoxicity. Alcohol Clin Exp Res 2020; 44:2187-2199. [PMID: 32981093 DOI: 10.1111/acer.14471] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Accepted: 09/17/2020] [Indexed: 12/19/2022]
Abstract
BACKGROUND Alcohol use in pregnancy increases the risk of abnormal cardiac development, and excessive alcohol consumption in adults can induce cardiomyopathy, contractile dysfunction, and arrhythmias. Understanding molecular mechanisms underlying alcohol-induced cardiac toxicity could provide guidance in the development of therapeutic strategies. METHODS We have performed proteomic and bioinformatic analysis to examine protein alterations globally and quantitatively in cardiomyocytes derived from human-induced pluripotent stem cells (hiPSC-CMs) treated with ethanol (EtOH). Proteins in both cell lysates and extracellular culture media were systematically quantitated. RESULTS Treatment with EtOH caused severe detrimental effects on hiPSC-CMs as indicated by significant cell death and deranged Ca2+ handling. Treatment of hiPSC-CMs with EtOH significantly affected proteins responsible for stress response (e.g., GPX1 and HSPs), ion channel-related proteins (e.g. ATP1A2), myofibril structure proteins (e.g., MYL2/3), and those involved in focal adhesion and extracellular matrix (e.g., ILK and PXN). Proteins involved in the TNF receptor-associated factor 2 signaling (e.g., CPNE1 and TNIK) were also affected by EtOH treatment. CONCLUSIONS The observed changes in protein expression highlight the involvement of oxidative stress and dysregulation of Ca2+ handling and contraction while also implicating potential novel targets in alcohol-induced cardiotoxicity. These findings facilitate further exploration of potential mechanisms, discovery of novel biomarkers, and development of targeted therapeutics against EtOH-induced cardiotoxicity.
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Affiliation(s)
- Rui Liu
- From the, Department of Pediatrics, (RL, PF, LCA, AR, DL, CX), Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta, Georgia.,Department of Pediatrics, (RL), the Third Xiangya Hospital of Central South University, Changsha, China
| | - Fangxu Sun
- School of Chemistry and Biochemistry and the Petit Institute for Bioengineering and Bioscience, (FS, RW), Georgia Institute of Technology, Atlanta, Georgia
| | - Parvin Forghani
- From the, Department of Pediatrics, (RL, PF, LCA, AR, DL, CX), Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta, Georgia
| | - Lawrence C Armand
- From the, Department of Pediatrics, (RL, PF, LCA, AR, DL, CX), Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta, Georgia
| | - Antonio Rampoldi
- From the, Department of Pediatrics, (RL, PF, LCA, AR, DL, CX), Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta, Georgia
| | - Dong Li
- From the, Department of Pediatrics, (RL, PF, LCA, AR, DL, CX), Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta, Georgia
| | - Ronghu Wu
- School of Chemistry and Biochemistry and the Petit Institute for Bioengineering and Bioscience, (FS, RW), Georgia Institute of Technology, Atlanta, Georgia
| | - Chunhui Xu
- From the, Department of Pediatrics, (RL, PF, LCA, AR, DL, CX), Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta, Georgia.,Wallace H. Coulter Department of Biomedical Engineering, (CX), Georgia Institute of Technology and Emory University, Atlanta, Georgia
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17
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Sutanto H, Cluitmans MJM, Dobrev D, Volders PGA, Bébarová M, Heijman J. Acute effects of alcohol on cardiac electrophysiology and arrhythmogenesis: Insights from multiscale in silico analyses. J Mol Cell Cardiol 2020; 146:69-83. [PMID: 32710981 DOI: 10.1016/j.yjmcc.2020.07.007] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 06/27/2020] [Accepted: 07/16/2020] [Indexed: 12/11/2022]
Abstract
Acute excessive ethyl alcohol (ethanol) consumption alters cardiac electrophysiology and can evoke cardiac arrhythmias, e.g., in 'holiday heart syndrome'. Ethanol acutely modulates numerous targets in cardiomyocytes, including ion channels, Ca2+-handling proteins and gap junctions. However, the mechanisms underlying ethanol-induced arrhythmogenesis remain incompletely understood and difficult to study experimentally due to the multiple electrophysiological targets involved and their potential interactions with preexisting electrophysiological or structural substrates. Here, we employed cellular- and tissue-level in-silico analyses to characterize the acute effects of ethanol on cardiac electrophysiology and arrhythmogenesis. Acute electrophysiological effects of ethanol were incorporated into human atrial and ventricular cardiomyocyte computer models: reduced INa, ICa,L, Ito, IKr and IKur, dual effects on IK1 and IK,ACh (inhibition at low and augmentation at high concentrations), and increased INCX and SR Ca2+ leak. Multiscale simulations in the absence or presence of preexistent atrial fibrillation or heart-failure-related remodeling demonstrated that low ethanol concentrations prolonged atrial action-potential duration (APD) without effects on ventricular APD. Conversely, high ethanol concentrations abbreviated atrial APD and prolonged ventricular APD. High ethanol concentrations promoted reentry in tissue simulations, but the extent of reentry promotion was dependent on the presence of altered intercellular coupling, and the degree, type, and pattern of fibrosis. Taken together, these data provide novel mechanistic insight into the potential proarrhythmic interactions between a preexisting substrate and acute changes in cardiac electrophysiology. In particular, acute ethanol exposure has concentration-dependent electrophysiological effects that differ between atria and ventricles, and between healthy and diseased hearts. Low concentrations of ethanol can have anti-fibrillatory effects in atria, whereas high concentrations promote the inducibility and maintenance of reentrant atrial and ventricular arrhythmias, supporting a role for limiting alcohol intake as part of cardiac arrhythmia management.
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Affiliation(s)
- Henry Sutanto
- Department of Cardiology, CARIM School for Cardiovascular Diseases, Maastricht University, the Netherlands
| | - Matthijs J M Cluitmans
- Department of Cardiology, CARIM School for Cardiovascular Diseases, Maastricht University, the Netherlands
| | - Dobromir Dobrev
- Institute of Pharmacology, West German Heart and Vascular Center, University Duisburg-Essen, Essen, Germany
| | - Paul G A Volders
- Department of Cardiology, CARIM School for Cardiovascular Diseases, Maastricht University, the Netherlands
| | - Markéta Bébarová
- Department of Physiology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Jordi Heijman
- Department of Cardiology, CARIM School for Cardiovascular Diseases, Maastricht University, the Netherlands.
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18
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Rampoldi A, Singh M, Wu Q, Duan M, Jha R, Maxwell JT, Bradner JM, Zhang X, Saraf A, Miller GW, Gibson G, Brown LA, Xu C. Cardiac Toxicity From Ethanol Exposure in Human-Induced Pluripotent Stem Cell-Derived Cardiomyocytes. Toxicol Sci 2020; 169:280-292. [PMID: 31059573 DOI: 10.1093/toxsci/kfz038] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Alcohol use prior to and during pregnancy remains a significant societal problem and can lead to developmental fetal abnormalities including compromised myocardia function and increased risk for heart disease later in life. Alcohol-induced cardiac toxicity has traditionally been studied in animal-based models. These models have limitations due to physiological differences from human cardiomyocytes (CMs) and are also not suitable for high-throughput screening. We hypothesized that human-induced pluripotent stem cell-derived CMs (hiPSC-CMs) could serve as a useful tool to study alcohol-induced cardiac defects and/or toxicity. In this study, hiPSC-CMs were treated with ethanol at doses corresponding to the clinically relevant levels of alcohol intoxication. hiPSC-CMs exposed to ethanol showed a dose-dependent increase in cellular damage and decrease in cell viability, corresponding to increased production of reactive oxygen species. Furthermore, ethanol exposure also generated dose-dependent increased irregular Ca2+ transients and contractility in hiPSC-CMs. RNA-seq analysis showed significant alteration in genes belonging to the potassium voltage-gated channel family or solute carrier family, partially explaining the irregular Ca2+ transients and contractility in ethanol-treated hiPSC-CMs. RNA-seq also showed significant upregulation in the expression of genes associated with collagen and extracellular matrix modeling, and downregulation of genes involved in cardiovascular system development and actin filament-based process. These results suggest that hiPSC-CMs can be a novel and physiologically relevant system for the study of alcohol-induced cardiac toxicity.
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Affiliation(s)
- Antonio Rampoldi
- Division of Pediatric Cardiology, Department of Pediatrics, Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta, Georgia
| | - Monalisa Singh
- Division of Pediatric Cardiology, Department of Pediatrics, Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta, Georgia
| | - Qingling Wu
- Division of Pediatric Cardiology, Department of Pediatrics, Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta, Georgia.,Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia
| | - Meixue Duan
- School of Biological Sciences, Georgia Institute of Technology, Atlanta, Georgia
| | - Rajneesh Jha
- Division of Pediatric Cardiology, Department of Pediatrics, Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta, Georgia
| | - Joshua T Maxwell
- Division of Pediatric Cardiology, Department of Pediatrics, Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta, Georgia
| | - Joshua M Bradner
- Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, Georgia
| | | | - Anita Saraf
- Division of Pediatric Cardiology, Department of Pediatrics, Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta, Georgia.,Division of Cardiology, Emory University School of Medicine, Atlanta, Georgia
| | - Gary W Miller
- Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, Georgia
| | - Greg Gibson
- School of Biological Sciences, Georgia Institute of Technology, Atlanta, Georgia
| | - Lou Ann Brown
- Division of Pediatric Cardiology, Department of Pediatrics, Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta, Georgia
| | - Chunhui Xu
- Division of Pediatric Cardiology, Department of Pediatrics, Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta, Georgia.,Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia
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19
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Membrane cholesterol oxidation downregulates atrial β-adrenergic responses in ROS-dependent manner. Cell Signal 2020; 67:109503. [DOI: 10.1016/j.cellsig.2019.109503] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 12/15/2019] [Accepted: 12/15/2019] [Indexed: 01/06/2023]
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20
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Köktürk M, Alak G, Atamanalp M. The effects of n-butanol on oxidative stress and apoptosis in zebra fish (Danio rerio) larvae. Comp Biochem Physiol C Toxicol Pharmacol 2020; 227:108636. [PMID: 31669665 DOI: 10.1016/j.cbpc.2019.108636] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 09/23/2019] [Accepted: 09/26/2019] [Indexed: 02/06/2023]
Abstract
In recent years, n-butanol has growing use in many areas, including the food industry. In this study, acute toxic effects of n-butanol to zebrafish (Danio rerio) larvae by applying different concentrations (10, 50, 250, 500, 750, 1000 and 1250 mg/L) to embryos were evaluated. For this purpose the data of oxidative stress, antioxidant - acetyl cholinesterase enzyme activities, malondialdehyde level and apoptosis were taken into consideration. At the end of the 96 h, antioxidant (Superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx)) and acetylcholinesterase (AChE) enzyme activities were decreased, however lipid peroxidation level, apoptotic cells, and reactive oxygen species increased (p < .05). As a result, it has been observed that high concentrations of n-butanol with its amphiphilic structure causes quite intense toxic effects in zebrafish embryos.
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Affiliation(s)
- Mine Köktürk
- Department of Organic Farming, School of Applied Science, Igdır University, TR-76000 Igdır, Turkey
| | - Gonca Alak
- Department of Aquaculture, Faculty of Fisheries, Ataturk University, TR-25030 Erzurum, Turkey
| | - Muhammed Atamanalp
- Department of Aquaculture, Faculty of Fisheries, Ataturk University, TR-25030 Erzurum, Turkey.
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21
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Myocardial death and dysfunction after ischemia-reperfusion injury require CaMKIIδ oxidation. Sci Rep 2019; 9:9291. [PMID: 31243295 PMCID: PMC6595001 DOI: 10.1038/s41598-019-45743-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Accepted: 06/11/2019] [Indexed: 02/08/2023] Open
Abstract
Reactive oxygen species (ROS) contribute to myocardial death during ischemia-reperfusion (I/R) injury, but detailed knowledge of molecular pathways connecting ROS to cardiac injury is lacking. Activation of the Ca2+/calmodulin-dependent protein kinase II (CaMKIIδ) is implicated in myocardial death, and CaMKII can be activated by ROS (ox-CaMKII) through oxidation of regulatory domain methionines (Met281/282). We examined I/R injury in mice where CaMKIIδ was made resistant to ROS activation by knock-in replacement of regulatory domain methionines with valines (MMVV). We found reduced myocardial death, and improved left ventricular function 24 hours after I/R injury in MMVV in vivo and in vitro compared to WT controls. Loss of ATP sensitive K+ channel (KATP) current contributes to I/R injury, and CaMKII promotes sequestration of KATP from myocardial cell membranes. KATP current density was significantly reduced by H2O2 in WT ventricular myocytes, but not in MMVV, showing ox-CaMKII decreases KATP availability. Taken together, these findings support a view that ox-CaMKII and KATP are components of a signaling axis promoting I/R injury by ROS.
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22
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Mustroph J, Lebek S, Maier LS, Neef S. Mechanisms of cardiac ethanol toxicity and novel treatment options. Pharmacol Ther 2018; 197:1-10. [PMID: 30557629 DOI: 10.1016/j.pharmthera.2018.12.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Ethanol can acutely and chronically alter cardiomyocyte and whole-organ function in the heart. Importantly, ethanol acutely and chronically predisposes to arrhythmias, while chronic abuse can induce heart failure. However, the molecular mechanisms of ethanol toxicity in the heart are incompletely understood. In this review, we summarize the current mechanistic knowledge on cardiac ethanol toxicity, with a focus on druggable pathways. Ethanol effects on excitation-contraction coupling, oxidative stress, apoptosis, and cardiac metabolism, as well as effects of ethanol metabolites will be discussed. Important recent findings have been gained by investigation of acute ethanol effects. These include a renewed focus on reactive oxygen species (ROS) and induction of SR Ca2+ leak by CaMKII-mediated pathways downstream of ROS. Furthermore, a clinical outlook into potential novel treatment options is provided.
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Affiliation(s)
- Julian Mustroph
- Department of Internal Medicine II, University Medical Center Regensburg, Germany
| | - Simon Lebek
- Department of Internal Medicine II, University Medical Center Regensburg, Germany
| | - Lars S Maier
- Department of Internal Medicine II, University Medical Center Regensburg, Germany
| | - Stefan Neef
- Department of Internal Medicine II, University Medical Center Regensburg, Germany.
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Beckendorf J, van den Hoogenhof MMG, Backs J. Physiological and unappreciated roles of CaMKII in the heart. Basic Res Cardiol 2018; 113:29. [PMID: 29905892 PMCID: PMC6003982 DOI: 10.1007/s00395-018-0688-8] [Citation(s) in RCA: 111] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Accepted: 06/11/2018] [Indexed: 12/27/2022]
Abstract
In the cardiomyocyte, CaMKII has been identified as a nodal influencer of excitation-contraction and also excitation-transcription coupling. Its activity can be regulated in response to changes in intracellular calcium content as well as after several post-translational modifications. Some of the effects mediated by CaMKII may be considered adaptive, while effects of sustained CaMKII activity may turn into the opposite and are detrimental to cardiac integrity and function. As such, CaMKII has long been noted as a promising target for pharmacological inhibition, but the ubiquitous nature of CaMKII has made it difficult to target CaMKII specifically where it is detrimental. In this review, we provide a brief overview of the physiological and pathophysiological properties of CaMKII signaling, but we focus on the physiological and adaptive functions of CaMKII. Furthermore, special consideration is given to the emerging role of CaMKII as a mediator of inflammatory processes in the heart.
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Affiliation(s)
- Jan Beckendorf
- Department for Molecular Cardiology and Epigenetics, University Hospital Heidelberg, Im Neuenheimer Feld 669, 69120, Heidelberg, Germany.,Department for Cardiology, Angiology and Pneumology, University Hospital Heidelberg, Heidelberg, Germany.,DZHK (German Centre for Cardiovascular Research), Partner Site Heidelberg/Mannheim, Heidelberg, Germany
| | - Maarten M G van den Hoogenhof
- Department for Molecular Cardiology and Epigenetics, University Hospital Heidelberg, Im Neuenheimer Feld 669, 69120, Heidelberg, Germany.,DZHK (German Centre for Cardiovascular Research), Partner Site Heidelberg/Mannheim, Heidelberg, Germany
| | - Johannes Backs
- Department for Molecular Cardiology and Epigenetics, University Hospital Heidelberg, Im Neuenheimer Feld 669, 69120, Heidelberg, Germany. .,DZHK (German Centre for Cardiovascular Research), Partner Site Heidelberg/Mannheim, Heidelberg, Germany.
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