251
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Karabağ C, Jones ML, Peddie CJ, Weston AE, Collinson LM, Reyes-Aldasoro CC. Semantic segmentation of HeLa cells: An objective comparison between one traditional algorithm and four deep-learning architectures. PLoS One 2020; 15:e0230605. [PMID: 33006963 PMCID: PMC7531863 DOI: 10.1371/journal.pone.0230605] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 09/06/2020] [Indexed: 12/21/2022] Open
Abstract
The quantitative study of cell morphology is of great importance as the structure and condition of cells and their structures can be related to conditions of health or disease. The first step towards that, is the accurate segmentation of cell structures. In this work, we compare five approaches, one traditional and four deep-learning, for the semantic segmentation of the nuclear envelope of cervical cancer cells commonly known as HeLa cells. Images of a HeLa cancer cell were semantically segmented with one traditional image-processing algorithm and four three deep learning architectures: VGG16, ResNet18, Inception-ResNet-v2, and U-Net. Three hundred slices, each 2000 × 2000 pixels, of a HeLa Cell were acquired with Serial Block Face Scanning Electron Microscopy. The first three deep learning architectures were pre-trained with ImageNet and then fine-tuned with transfer learning. The U-Net architecture was trained from scratch with 36, 000 training images and labels of size 128 × 128. The image-processing algorithm followed a pipeline of several traditional steps like edge detection, dilation and morphological operators. The algorithms were compared by measuring pixel-based segmentation accuracy and Jaccard index against a labelled ground truth. The results indicated a superior performance of the traditional algorithm (Accuracy = 99%, Jaccard = 93%) over the deep learning architectures: VGG16 (93%, 90%), ResNet18 (94%, 88%), Inception-ResNet-v2 (94%, 89%), and U-Net (92%, 56%).
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Affiliation(s)
- Cefa Karabağ
- Research Centre for Biomedical Engineering School of Mathematics, Computer Science and Engineering, Department of Electrical & Electronic Engineering, City, University of London, London, United Kingdom
| | - Martin L. Jones
- Electron Microscopy Science Technology Platform, The Francis Crick Institute, London, United Kingdom
| | - Christopher J. Peddie
- Electron Microscopy Science Technology Platform, The Francis Crick Institute, London, United Kingdom
| | - Anne E. Weston
- Electron Microscopy Science Technology Platform, The Francis Crick Institute, London, United Kingdom
| | - Lucy M. Collinson
- Electron Microscopy Science Technology Platform, The Francis Crick Institute, London, United Kingdom
| | - Constantino Carlos Reyes-Aldasoro
- giCentre, Department of Computer Science, School of Mathematics, Computer Science and Engineering, City, University of London, London, United Kingdom
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252
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Role of CMR Mapping Techniques in Cardiac Hypertrophic Phenotype. Diagnostics (Basel) 2020; 10:diagnostics10100770. [PMID: 33003571 PMCID: PMC7601617 DOI: 10.3390/diagnostics10100770] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 09/22/2020] [Accepted: 09/23/2020] [Indexed: 12/28/2022] Open
Abstract
Non-ischemic cardiomyopathies represent a heterogeneous group of myocardial diseases potentially leading to heart failure, life-threatening arrhythmias, and eventually death. Myocardial dysfunction is associated with different underlying pathological processes, ultimately inducing changes in morphological appearance. Thus, classification based on presenting morphological phenotypes has been proposed, i.e., dilated, hypertrophic, restrictive, and right ventricular cardiomyopathies. In light of the key diagnostic and prognostic role of morphological and functional features, cardiovascular imaging has emerged as key element in the clinical workflow of suspected cardiomyopathies, and above all, cardiovascular magnetic resonance (CMR) represents the ideal technique to be used: thanks to its physical principles, besides optimal spatial and temporal resolutions, incomparable contrast resolution allows to assess myocardial tissue abnormalities in detail. Traditionally, weighted images and late enhancement images after gadolinium-based contrast agent administration have been used to perform tissue characterization, but in the last decade quantitative assessment of pre-contrast longitudinal relaxation time (native T1), post-contrast longitudinal relaxation time (post-contrast T1) and transversal relaxation time (T2), all displayed with dedicated pixel-wise color-coded maps (mapping), has contributed to give precious knowledge insight, with positive influence of diagnostic accuracy and prognosis assessment, mostly in the setting of the hypertrophic phenotype. This review aims to describe the available evidence of the role of mapping techniques in the assessment of hypertrophic phenotype, and to suggest their integration in the routine CMR evaluation of newly diagnosed cardiomyopathies with increased wall thickness.
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253
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Huang J, Wan Q, Zou Y, Wang L, Pan Y. Familial dilated cardiomyopathy caused by a novel variant in the Lamin A/C gene: a case report. BMC Cardiovasc Disord 2020; 20:423. [PMID: 32962641 PMCID: PMC7509919 DOI: 10.1186/s12872-020-01695-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 08/31/2020] [Indexed: 11/29/2022] Open
Abstract
Background Familial dilated cardiomyopathy (FDCM) is most commonly inherited as an autosomal dominant trait. The Lamin A/C (LMNA) gene variants have been identified to be associated with DCM, conductive system disorders, type 2 Emery-Dreifuss muscular dystrophy and several other disorders. Here, we reported a novel variant in the LMNA gene that might be related to FDCM. Case presentation A 30-year-old young man was hospitalized for chest tightness, extreme fatigue, palpitation and impaired activity tolerance. He had clinical characteristics including cardiac dilatation, atrial tachyarrhythmia, severe conductive system disorders, and dyskinesia of both upper limbs and the neck. Genetic sequence analysis indicated that the patient carried a novel c.1325 T>C heterozygous LMNA gene variant. Catheter ablation and cardiac resynchronization therapy with pacing function (CRT-P) were performed to treat the arrhythmia. Conclusion The variant c.1325 T>C is a novel variant in the LMNA gene that has not been previously reported. Young patients with DCM, conductive system disorders and skeletal myopathy should be alert to the possibility of LMNA gene variant. Cardiac resynchronization therapy (CRT) may be a reasonable choice for patient carrying a LMNA gene variant with third-degree atrioventricular block even if the left ventricular ejection fraction is preserved in order to prevent the deterioration of cardiac function caused by right ventricular pacing dependency.
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Affiliation(s)
- Jing Huang
- Department of Cardiology, Shanghai East Hospital, Shanghai Tongji University School of Medicine, No. 150 Jimo Road, Shanghai, 200120, China
| | - Qing Wan
- Department of Cardiology, Shanghai East Hospital, Shanghai Tongji University School of Medicine, No. 150 Jimo Road, Shanghai, 200120, China
| | - Yu Zou
- Department of Cardiology, Shanghai East Hospital, Shanghai Tongji University School of Medicine, No. 150 Jimo Road, Shanghai, 200120, China
| | - Lijie Wang
- Department of Cardiology, Shanghai East Hospital, Shanghai Tongji University School of Medicine, No. 150 Jimo Road, Shanghai, 200120, China
| | - Yesheng Pan
- Department of Cardiology, Shanghai East Hospital, Shanghai Tongji University School of Medicine, No. 150 Jimo Road, Shanghai, 200120, China.
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254
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Paldino A, De Angelis G, Dal Ferro M, Faganello G, Porcari A, Barbati G, Korcova R, Gentile P, Artico J, Cannatà A, Gigli M, Pinamonti B, Merlo M, Sinagra G. High prevalence of subtle systolic and diastolic dysfunction in genotype-positive phenotype-negative relatives of dilated cardiomyopathy patients. Int J Cardiol 2020; 324:108-114. [PMID: 32949639 DOI: 10.1016/j.ijcard.2020.09.036] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2020] [Revised: 08/13/2020] [Accepted: 09/10/2020] [Indexed: 12/28/2022]
Abstract
BACKGROUND The early diagnosis of genetically determined dilated cardiomyopathy (DCM) could improve the prognosis in mutation carriers. Left ventricular global longitudinal strain (LV GLS) and peak left atrial longitudinal strain (PALS) are promising techniques for the detection of subtle systolic and diastolic dysfunction. We sought to evaluate the prevalence of subtle systolic and diastolic dysfunction by LV GLS and PALS in a cohort of genotype-positive phenotype-negative (GPFN) DCM relatives. METHODS AND RESULTS In this retrospective study, we analyzed echocardiograms of forty-one GPFN relatives of DCM patients. They were compared with age and sex matched healthy individuals (control group). Reduced LV GLS and PALS were defined as >18% and <23.1%, respectively. GPFN relatives (37 ± 14 years, 48.8% male) and controls were similar according to standard echocardiographic measurements. Conversely, LV GLS was -18.8 ± 2.7% in the GPFN group vs. -24.0 ± 1.8% in the control group (p < 0.001). Twenty subjects (48.8%) in the GPFN group and no subjects in the control group had a reduced LV GLS. PALS was 29.2 ± 6.7% in the GPFN group vs. 40.8 ± 8.5% in the control group (p < 0.001). Seven subjects (18.4%) in the GPFN group and one (2%) in the control group had a reduced PALS. A cohort of 17 genotype-negative phenotype-negative relatives showed higher values of LV GLS compared to GPFN. CONCLUSIONS Despite standard echocardiographic parameters are within the normal range, LV GLS and PALS are lower in GPFN relatives of DCM patients when compared to healthy individuals, suggesting a consistent proportion of subtle systolic and diastolic dysfunction in this population.
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Affiliation(s)
- Alessia Paldino
- Cardiothoracic Department, Azienda Sanitaria Universitaria Giuliano Isontina, Trieste, Italy
| | - Giulia De Angelis
- Cardiothoracic Department, Azienda Sanitaria Universitaria Giuliano Isontina, Trieste, Italy
| | - Matteo Dal Ferro
- Cardiothoracic Department, Azienda Sanitaria Universitaria Giuliano Isontina, Trieste, Italy
| | - Giorgio Faganello
- Cardiovascular Center, Azienda Sanitaria Universitaria Giuliano Isontina, Trieste, Italy
| | - Aldostefano Porcari
- Cardiothoracic Department, Azienda Sanitaria Universitaria Giuliano Isontina, Trieste, Italy
| | - Giulia Barbati
- Biostatistics Unit, Department of Medical Sciences, University of Trieste, Trieste, Italy
| | - Renata Korcova
- Cardiothoracic Department, Azienda Sanitaria Universitaria Giuliano Isontina, Trieste, Italy
| | - Piero Gentile
- Cardiothoracic Department, Azienda Sanitaria Universitaria Giuliano Isontina, Trieste, Italy
| | - Jessica Artico
- Cardiothoracic Department, Azienda Sanitaria Universitaria Giuliano Isontina, Trieste, Italy
| | - Antonio Cannatà
- Cardiothoracic Department, Azienda Sanitaria Universitaria Giuliano Isontina, Trieste, Italy
| | - Marta Gigli
- Cardiothoracic Department, Azienda Sanitaria Universitaria Giuliano Isontina, Trieste, Italy
| | - Bruno Pinamonti
- Cardiothoracic Department, Azienda Sanitaria Universitaria Giuliano Isontina, Trieste, Italy
| | - Marco Merlo
- Cardiothoracic Department, Azienda Sanitaria Universitaria Giuliano Isontina, Trieste, Italy.
| | - Gianfranco Sinagra
- Cardiothoracic Department, Azienda Sanitaria Universitaria Giuliano Isontina, Trieste, Italy
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255
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Abstract
PURPOSE OF REVIEW The goal of this paper is to provide an overview of contemporary knowledge specific to the causes, management, and outcome of heart failure in children. RECENT FINDINGS While recently there have been subtle improvements in heart failure outcomes in children, these improvements lag significantly behind that of adults. There is a growing body of literature suggesting that pediatric heart failure is a unique disease process with age- and disease-specific myocardial adaptations. In addition, the heterogenous etiologies of heart failure in children contribute to differential response to therapies and challenge the ability to obtain meaningful results from prospective clinical trials. Consideration of novel clinical trial designs with achievable but clinically relevant endpoints and focused study of the mechanisms underlying pediatric heart failure secondary to cardiomyopathies and structural heart disease are essential if we hope to advance care and identify targeted and effective therapies.
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Affiliation(s)
| | - Anastacia M Garcia
- Division of Cardiology, Department of Pediatrics, University of Colorado Denver Anschutz Medical Campus and Children's Hospital Colorado, Aurora, CO, USA
| | - Roni M Jacobsen
- Division of Cardiology, Department of Pediatrics, University of Colorado Denver Anschutz Medical Campus and Children's Hospital Colorado, Aurora, CO, USA
| | - Shelley D Miyamoto
- Division of Cardiology, Department of Pediatrics, University of Colorado Denver Anschutz Medical Campus and Children's Hospital Colorado, Aurora, CO, USA.
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256
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Friederich J, Seuß AC, Wess G. The role of atrial fibrillation as a prognostic factor in doberman pinschers with dilated cardiomyopathy and congestive heart failure. Vet J 2020; 264:105535. [PMID: 33012438 DOI: 10.1016/j.tvjl.2020.105535] [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] [Received: 01/14/2020] [Revised: 08/27/2020] [Accepted: 08/27/2020] [Indexed: 12/29/2022]
Abstract
Atrial fibrillation (AF) in congestive heart failure (CHF) is associated with a high risk of mortality and shorter survival times in human and veterinary medicine. A retrospective review of medical records was performed to evaluate the impact of AF on survival times in Doberman Pinschers with dilated cardiomyopathy (DCM). Time of first onset of CHF and its role as a prognostic factor were also determined, as were predictors of AF development. Forty-eight client-owned purebred Doberman Pinschers with DCM and CHF were included; 23 dogs presented with AF and 25 dogs did not develop AF until immediately before cardiac-related death. Dogs with AF survived for significantly shorter times than those without AF (P = 0.043). For dogs with AF, mean and median survival times were 88.2 days and 22 days, respectively (range, 42.1-134.4 days); mean and median survival times for dogs without AF were 150.7 days and 98 days, respectively (range, 98.5-203 days). AF increased the risk of cardiac-related death (hazard ratio [HR], 2.371; 95% confidence intervals [CI], 1.14-4.95; P = 0.021). Biventricular and right atrial dilation was only present in dogs with AF and right atrial enlargement was the only significant predictor of AF after multivariate analysis (P < 0.001). Dogs with AF had significantly higher mean heart rates than dogs without AF (201 beats per min [bpm] vs. 132 bpm; P < 0.001). In conclusion, AF in Doberman Pinschers with DCM and CHF increased the risk of cardiac-related death and reduced survival time.
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Affiliation(s)
- J Friederich
- Clinic of Small Animal Medicine, LMU University, Veterinärstr. 13, 80539, Munich, Germany
| | - A C Seuß
- Clinic of Small Animal Medicine, LMU University, Veterinärstr. 13, 80539, Munich, Germany
| | - G Wess
- Clinic of Small Animal Medicine, LMU University, Veterinärstr. 13, 80539, Munich, Germany.
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257
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Imanaka-Yoshida K, Tawara I, Yoshida T. Tenascin-C in cardiac disease: a sophisticated controller of inflammation, repair, and fibrosis. Am J Physiol Cell Physiol 2020; 319:C781-C796. [PMID: 32845719 DOI: 10.1152/ajpcell.00353.2020] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Tenascin-C (TNC) is a large extracellular matrix glycoprotein classified as a matricellular protein that is generally upregulated at high levels during physiological and pathological tissue remodeling and is involved in important biological signaling pathways. In the heart, TNC is transiently expressed at several important steps during embryonic development and is sparsely detected in normal adult heart but is re-expressed in a spatiotemporally restricted manner under pathological conditions associated with inflammation, such as myocardial infarction, hypertensive cardiac fibrosis, myocarditis, dilated cardiomyopathy, and Kawasaki disease. Despite its characteristic and spatiotemporally restricted expression, TNC knockout mice develop a grossly normal phenotype. However, various disease models using TNC null mice combined with in vitro experiments have revealed many important functions for TNC and multiple molecular cascades that control cellular responses in inflammation, tissue repair, and even myocardial regeneration. TNC has context-dependent diverse functions and, thus, may exert both harmful and beneficial effects in damaged hearts. However, TNC appears to deteriorate adverse ventricular remodeling by proinflammatory and profibrotic effects in most cases. Its specific expression also makes TNC a feasible diagnostic biomarker and target for molecular imaging to assess inflammation in the heart. Several preclinical studies have shown the utility of TNC as a biomarker for assessing the prognosis of patients and selecting appropriate therapy, particularly for inflammatory heart diseases.
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Affiliation(s)
- Kyoko Imanaka-Yoshida
- Department of Pathology and Matrix Biology, Mie University Graduate School of Medicine, Tsu, Japan.,Mie University Research Center for Matrix Biology, Tsu, Japan
| | - Isao Tawara
- Department of Hematology and Oncology, Mie University Graduate School of Medicine, Tsu, Japan.,Mie University Research Center for Matrix Biology, Tsu, Japan
| | - Toshimichi Yoshida
- Department of Pathology and Matrix Biology, Mie University Graduate School of Medicine, Tsu, Japan.,Mie University Research Center for Matrix Biology, Tsu, Japan
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258
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Bayona-Bafaluy MP, Iglesias E, López-Gallardo E, Emperador S, Pacheu-Grau D, Labarta L, Montoya J, Ruiz-Pesini E. Genetic aspects of the oxidative phosphorylation dysfunction in dilated cardiomyopathy. MUTATION RESEARCH-REVIEWS IN MUTATION RESEARCH 2020; 786:108334. [PMID: 33339579 DOI: 10.1016/j.mrrev.2020.108334] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Revised: 08/19/2020] [Accepted: 08/20/2020] [Indexed: 12/27/2022]
Abstract
Dilated cardiomyopathy is a frequent and extremely heterogeneous medical condition. Deficits in the oxidative phosphorylation system have been described in patients suffering from dilated cardiomyopathy. Hence, mutations in proteins related to this biochemical pathway could be etiological factors for some of these patients. Here, we review the clinical phenotypes of patients harboring pathological mutations in genes related to the oxidative phosphorylation system, either encoded in the mitochondrial or in the nuclear genome, presenting with dilated cardiomyopathy. In addition to the clinical heterogeneity of these patients, the large genetic heterogeneity has contributed to an improper allocation of pathogenicity for many candidate mutations. We suggest criteria to avoid incorrect assignment of pathogenicity to newly found mutations and discuss possible therapies targeting the oxidative phosphorylation function.
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Affiliation(s)
- M Pilar Bayona-Bafaluy
- Departamento de Bioquímica, Biología Molecular y Celular, Universidad de Zaragoza. C/ Miguel Servet, 177. 50013, Zaragoza, Spain; Instituto de Investigación Sanitaria (IIS) de Aragón, Av. San Juan Bosco, 13., 50009, Zaragoza, Spain; Centro de Investigaciones Biomédicas en Red de Enfermedades Raras (CIBERER), Av. Monforte de Lemos, 3-5, 28029, Madrid, Spain.
| | - Eldris Iglesias
- Departamento de Bioquímica, Biología Molecular y Celular, Universidad de Zaragoza. C/ Miguel Servet, 177. 50013, Zaragoza, Spain; Instituto de Investigación Sanitaria (IIS) de Aragón, Av. San Juan Bosco, 13., 50009, Zaragoza, Spain.
| | - Ester López-Gallardo
- Departamento de Bioquímica, Biología Molecular y Celular, Universidad de Zaragoza. C/ Miguel Servet, 177. 50013, Zaragoza, Spain; Instituto de Investigación Sanitaria (IIS) de Aragón, Av. San Juan Bosco, 13., 50009, Zaragoza, Spain; Centro de Investigaciones Biomédicas en Red de Enfermedades Raras (CIBERER), Av. Monforte de Lemos, 3-5, 28029, Madrid, Spain.
| | - Sonia Emperador
- Departamento de Bioquímica, Biología Molecular y Celular, Universidad de Zaragoza. C/ Miguel Servet, 177. 50013, Zaragoza, Spain; Instituto de Investigación Sanitaria (IIS) de Aragón, Av. San Juan Bosco, 13., 50009, Zaragoza, Spain; Centro de Investigaciones Biomédicas en Red de Enfermedades Raras (CIBERER), Av. Monforte de Lemos, 3-5, 28029, Madrid, Spain.
| | - David Pacheu-Grau
- Department of Cellular Biochemistry, University Medical Center, Georg-August University,Humboldtalle, 23., 37073, Göttingen, Germany.
| | - Lorenzo Labarta
- Unidad de Cuidados Intensivos, Hospital San Jorge, Av. Martínez de Velasco, 36., 22004, Huesca, Spain.
| | - Julio Montoya
- Departamento de Bioquímica, Biología Molecular y Celular, Universidad de Zaragoza. C/ Miguel Servet, 177. 50013, Zaragoza, Spain; Instituto de Investigación Sanitaria (IIS) de Aragón, Av. San Juan Bosco, 13., 50009, Zaragoza, Spain; Centro de Investigaciones Biomédicas en Red de Enfermedades Raras (CIBERER), Av. Monforte de Lemos, 3-5, 28029, Madrid, Spain.
| | - Eduardo Ruiz-Pesini
- Departamento de Bioquímica, Biología Molecular y Celular, Universidad de Zaragoza. C/ Miguel Servet, 177. 50013, Zaragoza, Spain; Instituto de Investigación Sanitaria (IIS) de Aragón, Av. San Juan Bosco, 13., 50009, Zaragoza, Spain; Centro de Investigaciones Biomédicas en Red de Enfermedades Raras (CIBERER), Av. Monforte de Lemos, 3-5, 28029, Madrid, Spain; Fundación ARAID, Av. de Ranillas, 1-D., 50018, Zaragoza, Spain.
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259
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In Experimental Dilated Cardiomyopathy Heart Failure and Survival Are Adversely Affected by a Lack of Sexual Interactions. Int J Mol Sci 2020; 21:ijms21155450. [PMID: 32751757 PMCID: PMC7432836 DOI: 10.3390/ijms21155450] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Revised: 07/28/2020] [Accepted: 07/28/2020] [Indexed: 02/07/2023] Open
Abstract
Nearly one in three people in the U.S. will develop heart failure (HF), characterized by fluid retention (edema) in the lungs and elsewhere. This leads to difficult breathing, deterioration of physical capacity, restriction of normal activities and death. There is little data about the safety and effects of sexual interactions in patients with HF. We tested whether a lack of sexual interactions affected pathophysiological outcomes in a pre-clinical mouse model of dilated cardiomyopathy that recapitulates the progressive stages of human HF. Male mice were randomly given access to, or deprived from, sexual interactions with female mice, which were confirmed by videography and generation of offspring. Cohousing with access to sexual interactions markedly prolonged survival, while cohousing without access to sexual activity did not. Sexual interactions improved systolic function, reduced HF-associated edema, altered transcription of heart contractile protein genes and decreased plasma testosterone levels. To determine whether testosterone levels contributed to survival, testosterone levels were experimentally reduced. Reduction of testosterone levels significantly prolonged survival. Taken together, in mice with dilated cardiomyopathy, sexual activity altered cardiac contractile gene transcription, improved systolic function, reduced edema and prolonged survival which may be in part due to lower testosterone levels.
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260
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Histone Deacetylase Inhibitor Suberoylanilide Hydroxamic Acid Improves Energetic Status and Cardiomyogenic Differentiation of Human Dilated Myocardium-Derived Primary Mesenchymal Cells. Int J Mol Sci 2020; 21:ijms21144845. [PMID: 32650632 PMCID: PMC7402340 DOI: 10.3390/ijms21144845] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 07/03/2020] [Accepted: 07/05/2020] [Indexed: 02/08/2023] Open
Abstract
Background. In this study the effect of histone deacetylase (HDAC) inhibitor suberoylanilide hydroxamic acid (SAHA) on the energetic status and cardiomyogenic differentiation of human healthy and dilated myocardium-derived mesenchymal stromal cells (hmMSC) have been investigated. Methods. The hmMSC were isolated from the healthy and dilated post-operation heart biopsies by explant outgrowth method. Cell proliferation, HDAC activity, mitochondrial membrane potential, and level of adenosine triphosphate (ATP) were evaluated. The effect of SAHA on mitochondrial parameters has been investigated also by Seahorse XF analyzer and cardiomyogenic differentiation was confirmed by the expression of transcription factor NK2 Homeobox 5 (Nkx2.5), cardiac troponin T and alpha cardiac actin at gene and protein levels. Results. Dilated myocardium-derived hmMSC had almost 1.5 folds higher HDAC activity compared to the healthy cells and significantly lower mitochondrial membrane potential and ATP level. HDAC class I and II inhibitor SAHA improved energetic status of mitochondria in dilated myocardium-isolated hmMSC and increased expression of cardiac specific proteins during 14 days of exposure of cells to SAHA. Conclusions. HDAC inhibitor SAHA can be a promising therapeutic for dilated cardiomyopathy (DCM). Dilated hmMSC exposed to SAHA improved energetic status and, subsequently, cardiomyogenic differentiation. Data suggest that human dilated myocardium-derived MSC still have cardio tissue regenerative potential, which might be stimulated by HDAC inhibitors.
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261
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Xie J, Zhang L, Chen Z, Hu A, Liu S, Lu D, Xia Y, Qian J, Yang P, Shen H. Protein-protein correlations based variable dimension expansion algorithm for high efficient serum biomarker discovery. Anal Chim Acta 2020; 1119:25-34. [PMID: 32439051 DOI: 10.1016/j.aca.2020.04.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 04/06/2020] [Indexed: 01/04/2023]
Abstract
In this study, we constructed a high specific and efficient serum biomarker discovery pipeline. We utilized dysregulated proteins identified in primary tissue and potentially secreted into the blood as biomarker candidates. The scheduled multiple reaction monitoring method was performed to accurately quantify and verify these candidates directly in serum, thus circumventing the effects of high-abundance proteins. We then generated new variables through assigning values to protein-protein correlations to extend the dimensionality of the dataset (PPC-VDE), and the specificity of disease classification. We successfully applied this pipeline for biomarker discovery of dilated cardiomyopathy and achieved 88.6% accurate classification of dilated cardiomyopathy, ischemic cardiomyopathy and healthy controls with machine learning. This pipeline is straightforward for biomarker discovery in broad clinical field.
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Affiliation(s)
- Juanjuan Xie
- Minhang Hospital and Institutes of Biomedical Sciences, Fudan University, Shanghai, 201199, China
| | - Lei Zhang
- Minhang Hospital and Institutes of Biomedical Sciences, Fudan University, Shanghai, 201199, China
| | - Zhangwei Chen
- Department of Cardiology, Zhongshan Hospital, Fudan University. Shanghai Institute of Cardiovascular Diseases, Shanghai, China
| | - Anqi Hu
- Minhang Hospital and Institutes of Biomedical Sciences, Fudan University, Shanghai, 201199, China
| | - Shanshan Liu
- Minhang Hospital and Institutes of Biomedical Sciences, Fudan University, Shanghai, 201199, China
| | - Danbo Lu
- Department of Cardiology, Zhongshan Hospital, Fudan University. Shanghai Institute of Cardiovascular Diseases, Shanghai, China
| | - Yan Xia
- Department of Cardiology, Zhongshan Hospital, Fudan University. Shanghai Institute of Cardiovascular Diseases, Shanghai, China
| | - Juying Qian
- Department of Cardiology, Zhongshan Hospital, Fudan University. Shanghai Institute of Cardiovascular Diseases, Shanghai, China.
| | - Pengyuan Yang
- Minhang Hospital and Institutes of Biomedical Sciences, Fudan University, Shanghai, 201199, China; Department of Chemistry, Fudan University, Shanghai, 200032, China; Department of Systems Biology for Medicine and School of Basic Medical Sciences, Fudan University, Shanghai, China; NHC Key Laboratory of Glycoconjugates Research, Fudan University, Shanghai, 200032, PR China.
| | - Huali Shen
- Minhang Hospital and Institutes of Biomedical Sciences, Fudan University, Shanghai, 201199, China; Department of Systems Biology for Medicine and School of Basic Medical Sciences, Fudan University, Shanghai, China; NHC Key Laboratory of Glycoconjugates Research, Fudan University, Shanghai, 200032, PR China.
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262
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Tan Y, Chen H, Li J, Wu Q, Wu X, Zhao W. Traditional Chinese medicine on treating dilated cardiomyopathy: A protocol for systematic review and meta analysis. Medicine (Baltimore) 2020; 99:e20777. [PMID: 32629659 PMCID: PMC7337424 DOI: 10.1097/md.0000000000020777] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 05/21/2020] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Dilated cardiomyopathy (DCM) is a type of complex cardiomyopathy characterized by enlargement and contractile dysfunction of the left ventricle, right ventricle, or double ventricle. Modern studies have shown that the pathogenesis of DCM is closely related to factors such as heredity, gene mutation, autoimmunity, and viral infection. The etiology is complex and the mortality rate is high. Many clinical trials have proved that traditional Chinese medicine has a great therapeutic effect on DCM. In this systematic review, we aim to evaluate the effectiveness and safety of traditional Chinese medicine for DCM. METHODS The databases of Pubmed, The Cochrane Library, Embase, China National Knowledge Infrastructure (CNKI), Wanfang Data Knowledge Service Platform (WANFANG Data), Weipu Information Chinese Periodical Service Platform (VIP), and China Biomedical Literature Service System (SinoMed) will be searched online to collect randomized controlled trials related to the treatment of DCM with Traditional Chinese medicine The time is limited from the construction of the library to December 2019. We will use the criteria provided by Cochrane 5.1.0 for quality assessment and risk assessment of the included studies, and use the Revman 5.3 and Stata 13.0 software so as to systematically review the effectiveness of Traditional Chinese medicine for DCM. ETHICS AND DISSEMINATION This systematic review will evaluate the efficacy and safety of traditional Chinese medicine for DCM. Because all data used in this systematic review and meta-analysis have been published, this review does not require ethical approval. In addition, all data will be analyzed anonymously during the review process. TRIAL REGISTRATION NUMBER PROSPERO CRD42020163332.
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Affiliation(s)
- Yuqing Tan
- Department of Cardiology, Guang’anmen Hospital, China Academy of Chinese Medical Sciences
- Beijing University of Chinese Medicine, Beijing, China
| | - Hengwen Chen
- Department of Cardiology, Guang’anmen Hospital, China Academy of Chinese Medical Sciences
| | - Jun Li
- Department of Cardiology, Guang’anmen Hospital, China Academy of Chinese Medical Sciences
| | - Qingjuan Wu
- Department of Cardiology, Guang’anmen Hospital, China Academy of Chinese Medical Sciences
| | - Xiaobo Wu
- Department of Cardiology, Guang’anmen Hospital, China Academy of Chinese Medical Sciences
- Beijing University of Chinese Medicine, Beijing, China
| | - Wei Zhao
- Department of Cardiology, Guang’anmen Hospital, China Academy of Chinese Medical Sciences
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263
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Merlo M, Cannatà A, Pio Loco C, Stolfo D, Barbati G, Artico J, Gentile P, De Paris V, Ramani F, Zecchin M, Gigli M, Pinamonti B, Korcova R, Di Lenarda A, Giacca M, Mestroni L, Camici PG, Sinagra G. Contemporary survival trends and aetiological characterization in non‐ischaemic dilated cardiomyopathy. Eur J Heart Fail 2020; 22:1111-1121. [DOI: 10.1002/ejhf.1914] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 04/23/2020] [Accepted: 05/22/2020] [Indexed: 12/19/2022] Open
Affiliation(s)
- Marco Merlo
- Cardiovascular Department, Centre for Diagnosis and Management of Cardiomyopathies Azienda Sanitaria Universitaria Integrata di Trieste (ASUITS), University of Trieste Trieste Italy
| | - Antonio Cannatà
- Cardiovascular Department, Centre for Diagnosis and Management of Cardiomyopathies Azienda Sanitaria Universitaria Integrata di Trieste (ASUITS), University of Trieste Trieste Italy
- Department of Cardiovascular Sciences, Faculty of Life Sciences & Medicine King's College London London UK
| | - Carola Pio Loco
- Cardiovascular Department, Centre for Diagnosis and Management of Cardiomyopathies Azienda Sanitaria Universitaria Integrata di Trieste (ASUITS), University of Trieste Trieste Italy
| | - Davide Stolfo
- Cardiovascular Department, Centre for Diagnosis and Management of Cardiomyopathies Azienda Sanitaria Universitaria Integrata di Trieste (ASUITS), University of Trieste Trieste Italy
| | | | - Jessica Artico
- Cardiovascular Department, Centre for Diagnosis and Management of Cardiomyopathies Azienda Sanitaria Universitaria Integrata di Trieste (ASUITS), University of Trieste Trieste Italy
| | - Piero Gentile
- Cardiovascular Department, Centre for Diagnosis and Management of Cardiomyopathies Azienda Sanitaria Universitaria Integrata di Trieste (ASUITS), University of Trieste Trieste Italy
| | - Valerio De Paris
- Cardiovascular Department, Centre for Diagnosis and Management of Cardiomyopathies Azienda Sanitaria Universitaria Integrata di Trieste (ASUITS), University of Trieste Trieste Italy
| | - Federica Ramani
- Cardiovascular Department, Centre for Diagnosis and Management of Cardiomyopathies Azienda Sanitaria Universitaria Integrata di Trieste (ASUITS), University of Trieste Trieste Italy
| | - Massimo Zecchin
- Cardiovascular Department, Centre for Diagnosis and Management of Cardiomyopathies Azienda Sanitaria Universitaria Integrata di Trieste (ASUITS), University of Trieste Trieste Italy
| | - Marta Gigli
- Cardiovascular Department, Centre for Diagnosis and Management of Cardiomyopathies Azienda Sanitaria Universitaria Integrata di Trieste (ASUITS), University of Trieste Trieste Italy
| | - Bruno Pinamonti
- Cardiovascular Department, Centre for Diagnosis and Management of Cardiomyopathies Azienda Sanitaria Universitaria Integrata di Trieste (ASUITS), University of Trieste Trieste Italy
| | - Renata Korcova
- Cardiovascular Department, Centre for Diagnosis and Management of Cardiomyopathies Azienda Sanitaria Universitaria Integrata di Trieste (ASUITS), University of Trieste Trieste Italy
| | - Andrea Di Lenarda
- Cardiovascular Centre Azienda Sanitaria Universitaria Integrata of Trieste (ASUITS), University of Trieste Trieste Italy
| | - Mauro Giacca
- Department of Cardiovascular Sciences, Faculty of Life Sciences & Medicine King's College London London UK
| | - Luisa Mestroni
- Cardiovascular Institute and Adult Medical Genetics Program University of Colorado Anschutz Medical Campus Aurora CO USA
| | - Paolo G. Camici
- Vita Salute University and San Raffaele Hospital Milan Italy
| | - Gianfranco Sinagra
- Cardiovascular Department, Centre for Diagnosis and Management of Cardiomyopathies Azienda Sanitaria Universitaria Integrata di Trieste (ASUITS), University of Trieste Trieste Italy
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Ellwanger JH, Kulmann-Leal B, Kaminski VDL, Rodrigues AG, Bragatte MADS, Chies JAB. Beyond HIV infection: Neglected and varied impacts of CCR5 and CCR5Δ32 on viral diseases. Virus Res 2020; 286:198040. [PMID: 32479976 PMCID: PMC7260533 DOI: 10.1016/j.virusres.2020.198040] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 05/27/2020] [Accepted: 05/27/2020] [Indexed: 12/18/2022]
Abstract
CCR5 regulates multiple cell types (e.g., T regulatory and Natural Killer cells) and immune responses. The effects of CCR5, CCR5Δ32 (variant associated with reduced CCR5 expression) and CCR5 antagonists vary between infections. CCR5 affects the pathogenesis of flaviviruses, especially in the brain. The genetic variant CCR5Δ32 increases the risk of symptomatic West Nile virus infection. The triad “CCR5, extracellular vesicles and infections” is an emerging topic.
The interactions between chemokine receptors and their ligands may affect susceptibility to infectious diseases as well as their clinical manifestations. These interactions mediate both the traffic of inflammatory cells and virus-associated immune responses. In the context of viral infections, the human C-C chemokine receptor type 5 (CCR5) receives great attention from the scientific community due to its role as an HIV-1 co-receptor. The genetic variant CCR5Δ32 (32 base-pair deletion in CCR5 gene) impairs CCR5 expression on the cell surface and is associated with protection against HIV infection in homozygous individuals. Also, the genetic variant CCR5Δ32 modifies the CCR5-mediated inflammatory responses in various conditions, such as inflammatory and infectious diseases. CCR5 antagonists mimic, at least in part, the natural effects of the CCR5Δ32 in humans, which explains the growing interest in the potential benefits of using CCR5 modulators for the treatment of different diseases. Nevertheless, beyond HIV infection, understanding the effects of the CCR5Δ32 variant in multiple viral infections is essential to shed light on the potential effects of the CCR5 modulators from a broader perspective. In this context, this review discusses the involvement of CCR5 and the effects of the CCR5Δ32 in human infections caused by the following pathogens: West Nile virus, Influenza virus, Human papillomavirus, Hepatitis B virus, Hepatitis C virus, Poliovirus, Dengue virus, Human cytomegalovirus, Crimean-Congo hemorrhagic fever virus, Enterovirus, Japanese encephalitis virus, and Hantavirus. Subsequently, this review addresses the impacts of CCR5 gene editing and CCR5 modulation on health and viral diseases. Also, this article connects recent findings regarding extracellular vesicles (e.g., exosomes), viruses, and CCR5. Neglected and emerging topics in “CCR5 research” are briefly described, with focus on Rocio virus, Zika virus, Epstein-Barr virus, and Rhinovirus. Finally, the potential influence of CCR5 on the immune responses to coronaviruses is discussed.
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Affiliation(s)
- Joel Henrique Ellwanger
- Laboratório de Imunobiologia e Imunogenética, Departamento de Genética, Universidade Federal do Rio Grande do Sul - UFRGS, Porto Alegre, Brazil; Programa de Pós-Graduação em Genética e Biologia Molecular, Departamento de Genética, Universidade Federal do Rio Grande do Sul - UFRGS, Porto Alegre, Brazil
| | - Bruna Kulmann-Leal
- Laboratório de Imunobiologia e Imunogenética, Departamento de Genética, Universidade Federal do Rio Grande do Sul - UFRGS, Porto Alegre, Brazil; Programa de Pós-Graduação em Genética e Biologia Molecular, Departamento de Genética, Universidade Federal do Rio Grande do Sul - UFRGS, Porto Alegre, Brazil
| | - Valéria de Lima Kaminski
- Laboratório de Imunobiologia e Imunogenética, Departamento de Genética, Universidade Federal do Rio Grande do Sul - UFRGS, Porto Alegre, Brazil; Programa de Pós-Graduação em Genética e Biologia Molecular, Departamento de Genética, Universidade Federal do Rio Grande do Sul - UFRGS, Porto Alegre, Brazil; Programa de Pós-Graduação em Biotecnologia, Laboratório de Imunologia Aplicada, Instituto de Ciência e Tecnologia - ICT, Universidade Federal de São Paulo - UNIFESP, São José dos Campos, São Paulo, Brazil
| | - Andressa Gonçalves Rodrigues
- Laboratório de Imunobiologia e Imunogenética, Departamento de Genética, Universidade Federal do Rio Grande do Sul - UFRGS, Porto Alegre, Brazil
| | - Marcelo Alves de Souza Bragatte
- Programa de Pós-Graduação em Genética e Biologia Molecular, Departamento de Genética, Universidade Federal do Rio Grande do Sul - UFRGS, Porto Alegre, Brazil; Núcleo de Bioinformática do Laboratório de Imunobiologia e Imunogenética, Departamento de Genética, Universidade Federal do Rio Grande do Sul - UFRGS, Porto Alegre, Brazil
| | - José Artur Bogo Chies
- Laboratório de Imunobiologia e Imunogenética, Departamento de Genética, Universidade Federal do Rio Grande do Sul - UFRGS, Porto Alegre, Brazil; Programa de Pós-Graduação em Genética e Biologia Molecular, Departamento de Genética, Universidade Federal do Rio Grande do Sul - UFRGS, Porto Alegre, Brazil.
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265
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Yuan X, Mao S, Tang Q. Analysis of the incidence and baseline predictors of the left ventricular ejection fraction returning to normal after dilated cardiomyopathy in postmenopausal women: a retrospective, observational study. J Int Med Res 2020; 48:300060520922471. [PMID: 32429729 PMCID: PMC7241211 DOI: 10.1177/0300060520922471] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Objective To analyse the incidence and baseline predictors of the left ventricular ejection fraction (LVEF) returning to normal after dilated cardiomyopathy (DCM) following intervention with standard anti-heart failure (HF) medication in postmenopausal women. Methods Data from consecutive postmenopausal women who were first diagnosed with DCM and received anti-HF treatment during 2011 to 2018 were prospectively retrieved. The study population was divided into the LVEF recovery (LVR) group and the LVEF unrecovered (LVU) group according to whether LVEF was > 50%. The primary endpoint was baseline predictors of LVEF returning to normal. Results LVEF returned to normal in 49.3% (210/426) of patients with DCM. LVEF was significantly higher in the LVR group than in the LVU group (57.4% ± 6.9% vs 44.2% ± 5.3%; hazard ratio 1.312, 95% confidence interval 1.015–1.726) at the final follow-up. High systolic pressure, a short history of HF, a short QRS interval, a small left ventricular end-diastolic diameter (LVEDd), and high LVEF at admission were independent predictors of LVEF returning to normal. Conclusions LVEF returning to normal in postmenopausal women with DCM who receive standard anti-HF treatment is associated with systolic pressure, a history of HF, QRS interval, LVEDd, LVEF at admission, and favourable outcome.
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Affiliation(s)
- Xiaopin Yuan
- Department of Cardiology, Renmin Hospital of Wuhan University; Cardiovascular Research Institute of Wuhan University; Hubei Key Laboratory of Cardiology, Wuhan, Hubei, China
| | - Shuai Mao
- Department of Hepatobiliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Qizhu Tang
- Department of Cardiology, Renmin Hospital of Wuhan University; Cardiovascular Research Institute of Wuhan University; Hubei Key Laboratory of Cardiology, Wuhan, Hubei, China
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266
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Correa A, Haider SW, Aronow WS. Precision medicine in cardiac electrophysiology: where we are and where we need to go. EXPERT REVIEW OF PRECISION MEDICINE AND DRUG DEVELOPMENT 2020. [DOI: 10.1080/23808993.2020.1754127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Ashish Correa
- Department of Cardiology, Mount Sinai Morningside (formerly Mount St. Luke’s), Icahn School of Medicine, New York, NY, USA
| | - Syed Waqas Haider
- Department of Cardiology, Mount Sinai Morningside (formerly Mount St. Luke’s), Icahn School of Medicine, New York, NY, USA
| | - Wilbert S. Aronow
- Department of Cardiology, Westchester Medical Center, New York Medical College, Valhalla, NY, USA
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267
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Shen C, Zhong Y, Huang X, Wang Y, Peng Y, Li K, Zhou B, Zhang L, Rao L. Associations between TAB2 gene polymorphisms and dilated cardiomyopathy in a Chinese population. Biomark Med 2020; 14:441-450. [PMID: 32270697 DOI: 10.2217/bmm-2019-0384] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Aim: The present study aimed to investigate the role of TAB2 gene polymorphisms in dilated cardiomyopathy (DCM) susceptibility and prognosis in a Chinese population. Materials & methods: A total of 343 DCM patients and 451 controls were enrolled and had their blood genotyped. Survival analysis was evaluated with Kaplan-Meier curves and Cox regression analysis. Results: G carriers (AG/GG) and AG genotype of rs237028 had a higher DCM susceptibility as well as a worse DCM prognosis. Additionally, C carriers (CT/CC) of rs652921 and G carriers (TG/GG) of rs521845 had a higher DCM risk and CC homozygote of rs652921 had a worse DCM prognosis. These associations were still significant after adjustment for the Bonferroni correction. Conclusion: TAB2 gene polymorphisms were associated with DCM susceptibility and prognosis in the Chinese population.
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Affiliation(s)
- Can Shen
- Department of Cardiology, West China Hospital of Sichuan University, Chengdu, Sichuan, 610041, China.,Laboratory of Molecular Translational Medicine, Center for Translational Medicine, Key Laboratory of Birth Defects & Related Diseases of Women & Children (Sichuan University), Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Yue Zhong
- Department of Cardiology, West China Hospital of Sichuan University, Chengdu, Sichuan, 610041, China.,Laboratory of Molecular Translational Medicine, Center for Translational Medicine, Key Laboratory of Birth Defects & Related Diseases of Women & Children (Sichuan University), Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Xingming Huang
- Laboratory of Molecular Translational Medicine, Center for Translational Medicine, Key Laboratory of Birth Defects & Related Diseases of Women & Children (Sichuan University), Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, 610041, China.,Department of Pathology, West China Second University Hospital of Sichuan University, Chengdu, Sichuan, 610041, China
| | - Yanyun Wang
- Laboratory of Molecular Translational Medicine, Center for Translational Medicine, Key Laboratory of Birth Defects & Related Diseases of Women & Children (Sichuan University), Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Ying Peng
- Department of Cardiology, West China Hospital of Sichuan University, Chengdu, Sichuan, 610041, China
| | - Kai Li
- Department of Cardiology, West China Hospital of Sichuan University, Chengdu, Sichuan, 610041, China.,Laboratory of Molecular Translational Medicine, Center for Translational Medicine, Key Laboratory of Birth Defects & Related Diseases of Women & Children (Sichuan University), Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Bin Zhou
- Laboratory of Molecular Translational Medicine, Center for Translational Medicine, Key Laboratory of Birth Defects & Related Diseases of Women & Children (Sichuan University), Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Lin Zhang
- Laboratory of Molecular Translational Medicine, Center for Translational Medicine, Key Laboratory of Birth Defects & Related Diseases of Women & Children (Sichuan University), Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Li Rao
- Department of Cardiology, West China Hospital of Sichuan University, Chengdu, Sichuan, 610041, China
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Finocchiaro G, Merlo M, Sheikh N, De Angelis G, Papadakis M, Olivotto I, Rapezzi C, Carr‐White G, Sharma S, Mestroni L, Sinagra G. The electrocardiogram in the diagnosis and management of patients with dilated cardiomyopathy. Eur J Heart Fail 2020; 22:1097-1107. [DOI: 10.1002/ejhf.1815] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 03/12/2020] [Accepted: 03/14/2020] [Indexed: 12/28/2022] Open
Affiliation(s)
| | - Marco Merlo
- Cardiovascular Department A.O.U. Ospedali Riuniti Trieste Italy
| | - Nabeel Sheikh
- Cardiothoracic Centre, Guy's and St Thomas' Hospital London UK
| | | | - Michael Papadakis
- Cardiology Clinical and Academic Group St George's University of London, London and St George's University Hospital NHS Foundation Trust London UK
| | - Iacopo Olivotto
- Cardiomyopathy Unit Careggi University Hospital Florence Italy
| | - Claudio Rapezzi
- Cardiology University of Ferrara and Maria Cecilia Hospital Cotignola Italy
- GVM Care & Research Cotignola Italy
| | | | - Sanjay Sharma
- Cardiology Clinical and Academic Group St George's University of London, London and St George's University Hospital NHS Foundation Trust London UK
| | - Luisa Mestroni
- Cardiovascular Institute and Adult Medical Genetics Program University of Colorado Anschutz Medical Campus Aurora CO USA
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269
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Di RM, Yang CX, Zhao CM, Yuan F, Qiao Q, Gu JN, Li XM, Xu YJ, Yang YQ. Identification and functional characterization of KLF5 as a novel disease gene responsible for familial dilated cardiomyopathy. Eur J Med Genet 2020; 63:103827. [DOI: 10.1016/j.ejmg.2019.103827] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 10/25/2019] [Accepted: 12/14/2019] [Indexed: 02/08/2023]
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270
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Tan C, Yi XY, Chen Y, Wang SS, Ji Q, Li F, Zou RM, Wang YW, Wang C. [Association of T-wave amplitude on electrocardiogram with left ventricular ejection fraction in children with dilated cardiomyopathy]. ZHONGGUO DANG DAI ER KE ZA ZHI = CHINESE JOURNAL OF CONTEMPORARY PEDIATRICS 2020; 22:374-379. [PMID: 32312378 PMCID: PMC7389690 DOI: 10.7499/j.issn.1008-8830.1910030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Accepted: 01/08/2020] [Indexed: 06/11/2023]
Abstract
OBJECTIVE To study the association of T-wave amplitude on electrocardiogram (ECG) with left ventricular ejection fraction (LVEF) in children with dilated cardiomyopathy. METHODS A retrospective analysis was performed for the clinical data of 44 children who were diagnosed with dilated cardiomyopathy from May 2009 to June 2018. According to LVEF, they were divided into two groups: LVEF ≥50% group (n=26) and LVEF <50% group (n=18). After treatment, 25 children were followed up for 3-42 months (mean 14±9 months). The Guangdong Zhongshan SR-1000A ECG Automatic Analyzer was used to obtain the 12-lead body surface ECG results in the supine position. T-wave amplitude on ECG was evaluated by software and manual measurement. RESULTS Compared with the LVEF ≥50% group, the LVEF <50% group had a significant reduction in the T-wave amplitude in leads II, V4, V5 and V6 (P<0.05). The increased-LVEF group (an increase in LVEF > 5% after treatment) had a significant increase in the T-wave amplitude in leads aVR, V5, and V6 after treatment (P<0.05), while the unchanged-LVEF group (an increase in LVEF ≤ 5% after treatment) had a significant reduction in the T-wave amplitude in lead aVR after treatment (P<0.05). The receiver operating characteristic curve analysis showed that the T-wave amplitude in leads II, V4, V5 and V6 had a certain value in predicting LVEF <50% in children with dilated cardiomyopathy (P<0.05). A combination of T-wave amplitude of ≤0.20 mV in lead II, ≤0.40 mV in lead V4, and ≤0.30 mV in leads V5 and V6 had a sensitivity of 88.2% and specificity of 76.0% in the predication of LVEF <50% in children with dilated cardiomyopathy. CONCLUSIONS T-wave amplitude on ECG can be used as the indexes for the evaluation of the left ventricular systolic function in children with dilated cardiomyopathy.
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Affiliation(s)
- Cheng Tan
- Department of Pediatric Cardiovasology, Children's Medical Center, Second Xiangya Hospital, Central South University, Changsha 410011, China.
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271
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Che Y, Su Z, Xia L. Effects of IL-22 on cardiovascular diseases. Int Immunopharmacol 2020; 81:106277. [PMID: 32062077 DOI: 10.1016/j.intimp.2020.106277] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 01/29/2020] [Accepted: 02/01/2020] [Indexed: 12/11/2022]
Abstract
Interleukin-22 (IL-22), which belongs to the IL-10 family, is an alpha helix cytokine specifically produced by many lymphocytes, such as Th1, Th17, Th22, ILCs, CD4+ and CD8+ T cells. In recent years, more and more studies have demonstrated that IL-22 has an interesting relationship with various cardiovascular diseases, including myocarditis, myocardial infarction, atherosclerosis, and other cardiovascular diseases, and IL-22 signal may play a dual role in cardiovascular diseases. Here, we summarize the recent progress on the source, function, regulation of IL-22 and the effects of IL-22 signal in cardiovascular diseases. The study of IL-22 will suggest more specific strategies to maneuver these functions for the effective treatment of cardiovascular diseases and future clinical treatment.
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Affiliation(s)
- Yang Che
- Department of Laboratory Medicine, Affiliated Hospital of Jiangsu University, Zhenjiang 212001, China; International Genome Center, Jiangsu University, Zhenjiang 212013, China
| | - Zhaoliang Su
- International Genome Center, Jiangsu University, Zhenjiang 212013, China; Department of Immunology, Jiangsu University, Zhenjiang 212013, China
| | - Lin Xia
- Department of Laboratory Medicine, Affiliated Hospital of Jiangsu University, Zhenjiang 212001, China; International Genome Center, Jiangsu University, Zhenjiang 212013, China.
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272
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van der Mheen M, van der Meulen MH, den Boer SL, Schreutelkamp DJ, van der Ende J, de Nijs PFA, Breur JMPJ, Tanke RB, Blom NA, Rammeloo LAJ, ten Harkel ADJ, du Marchie Sarvaas GJ, Utens EMWJ, Dalinghaus M. Emotional and behavioral problems in children with dilated cardiomyopathy. Eur J Cardiovasc Nurs 2020; 19:291-300. [PMID: 31552760 PMCID: PMC7153220 DOI: 10.1177/1474515119876148] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 07/25/2019] [Accepted: 08/23/2019] [Indexed: 11/17/2022]
Abstract
BACKGROUND Dilated cardiomyopathy (DCM) in children is an important cause of severe heart failure and carries a poor prognosis. Adults with heart failure are at increased risk of anxiety and depression and such symptoms predict adverse clinical outcomes such as mortality. In children with DCM, studies examining these associations are scarce. AIMS We studied whether in children with DCM: (1) the level of emotional and behavioral problems was increased as compared to normative data, and (2) depressive and anxiety problems were associated with the combined risk of death or cardiac transplantation. METHODS To assess emotional and behavioral problems in children with DCM, parents of 68 children, aged 1.5-18 years (6.9±5.7 years), completed the Child Behavior Checklist. RESULTS Compared to normative data, more young children (1.5-5 years) with DCM had somatic complaints (24.3% vs. 8.0%; p < .001), but fewer had externalizing problems (5.4% vs. 17.0%; p = .049). Overall internalizing problems did not reach significance. Compared to normative data, more older children (6-18 years) showed internalizing problems (38.7% vs. 17.0%; p = .001), including depressive (29.0% vs. 8.0%; p < .001) and anxiety problems (19.4% vs. 8.0%; p = .023), and somatic complaints (29.0% vs. 8.0%; p < .001). Anxiety and depressive problems, corrected for heart failure severity, did not predict the risk of death or cardiac transplantation. CONCLUSION Children of 6 years and older showed more depressive and anxiety problems than the normative population. Moreover, in both age groups, somatic problems were common. No association with outcome could be demonstrated.
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Affiliation(s)
- Malindi van der Mheen
- Department of Child and Adolescent Psychiatry/Psychology, Erasmus MC – Sophia Children’s Hospital, Rotterdam, The Netherlands
| | | | - Susanna L den Boer
- Department of Pediatrics, Erasmus MC – Sophia Children’s Hospital, Rotterdam, The Netherlands
| | - Dayenne J Schreutelkamp
- Department of Pediatric Intensive Care, Erasmus MC – Sophia Children’s Hospital, Rotterdam, The Netherlands
| | - Jan van der Ende
- Department of Child and Adolescent Psychiatry/Psychology, Erasmus MC – Sophia Children’s Hospital, Rotterdam, The Netherlands
| | - Pieter FA de Nijs
- Department of Child and Adolescent Psychiatry/Psychology, Erasmus MC – Sophia Children’s Hospital, Rotterdam, The Netherlands
| | - Johannes MPJ Breur
- Department of Pediatrics, Wilhelmina Children’s Hospital, UMC Utrecht, The Netherlands
| | - Ronald B Tanke
- Department of Pediatrics, Radboud UMC, Nijmegen, The Netherlands
| | - Nico A Blom
- Department of Pediatrics, Amsterdam UMC, Emma Children’s Hospital, The Netherlands
| | - Lukas AJ Rammeloo
- Department of Pediatrics, Amsterdam UMC, VU University Medical Center, The Netherlands
| | | | | | - Elisabeth MWJ Utens
- Department of Child and Adolescent Psychiatry/Psychology, Erasmus MC – Sophia Children’s Hospital, Rotterdam, The Netherlands
- Research Institute of Child Development and Education, University of Amsterdam, The Netherlands
- Academic Centre for Child and Adolescent Psychiatry the Bascule, Amsterdam UMC, Academic Medical Centre, The Netherlands
| | - Michiel Dalinghaus
- Department of Pediatrics, Erasmus MC – Sophia Children’s Hospital, Rotterdam, The Netherlands
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Zeng C, Duan F, Hu J, Luo B, Huang B, Lou X, Sun X, Li H, Zhang X, Yin S, Tan H. NLRP3 inflammasome-mediated pyroptosis contributes to the pathogenesis of non-ischemic dilated cardiomyopathy. Redox Biol 2020; 34:101523. [PMID: 32273259 PMCID: PMC7327979 DOI: 10.1016/j.redox.2020.101523] [Citation(s) in RCA: 184] [Impact Index Per Article: 46.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 03/18/2020] [Accepted: 03/24/2020] [Indexed: 12/20/2022] Open
Abstract
Dilated cardiomyopathy (DCM) is one of the most common causes of heart failure, and the underlying mechanism remains largely elusive. Here we investigated whether NLRP3 inflammasome-mediated pyroptosis contributes to non-ischemic DCM and dissected the underlying mechanism. We found that hyper activated NLRP3 inflammasome with pyroptotic cell death of cardiomyocytes were presented in the myocardial tissues of DCM patients, which were negatively correlated with cardiac function. Doxorubicin (Dox)-induced DCM characterization disclosed that NLRP3 inflammasome activation and pyroptosis occurred in Dox-treated heart tissues, but were very marginal in either NLRP3-/- or caspase-1-/- mice. Mechanistically, Dox enhanced expressions of NOX1 and NOX4 and induced mitochondrial fission through dynamin-related protein 1 (Drp1) activation, leading to NLRP3 inflammasome-mediated pyroptosis in cardiomyocytes via caspase-1-dependent manner. Conversely, both inhibitions of NOX1 and NOX4 and Drp1 suppressed Dox-induced NLPR3 inflammasome activation and pyroptosis. The alterations of NOX1 and NOX4 expression, Drp1 phosphorylation and mitochondrial fission were validated in DCM patients and mice. Importantly, Dox-induced Drp1-mediated mitochondrial fission and the consequent NLRP3 inflammasome activation and pyroptosis were reversed by NOX1 and NOX4 inhibition in mice. This study demonstrates for the first time that cardiomyocyte pyroptosis triggered by NLRP3 inflammasome activation via caspase-1 causally contributes to myocardial dysfunction progression and DCM pathogenesis.
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Affiliation(s)
- Cheng Zeng
- Department of Pathophysiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, 510080, China
| | - Fengqi Duan
- Department of Pathophysiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, 510080, China
| | - Jia Hu
- Department of Pathophysiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, 510080, China
| | - Bin Luo
- Department of Forensic Medicine, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, 510080, China
| | - Binlong Huang
- Department of Cardiac Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China
| | - Xiaoying Lou
- Department of Pathology, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510655, China
| | - Xiuting Sun
- Department of Cardiology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China
| | - Hongyu Li
- Laboratory Animal Center, Sun Yat-sen University, Guangzhou, 510080, China
| | - Xuanhong Zhang
- Department of Pathophysiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, 510080, China
| | - Shengli Yin
- Department of Cardiac Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China.
| | - Hongmei Tan
- Department of Pathophysiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, 510080, China; Guangdong Engineering & Technology Research Center for Disease-Model Animals, Sun Yat-sen University, Guangzhou, 510080, China.
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274
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Lannou S, Mansencal N, Couchoud C, Lassalle M, Dubourg O, Stengel B, Jacquelinet C, Charron P. The Public Health Burden of Cardiomyopathies: Insights from a Nationwide Inpatient Study. J Clin Med 2020; 9:jcm9040920. [PMID: 32230881 PMCID: PMC7230913 DOI: 10.3390/jcm9040920] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 03/23/2020] [Accepted: 03/24/2020] [Indexed: 11/16/2022] Open
Abstract
Cardiomyopathies are responsible for heart failure and sudden cardiac death, but epidemiological data are scarce and the public health burden may be underestimated. We studied aggregating data from all public or private hospitals in France. Patients were categorized from relevant ICD-10 codes into dilated, hypertrophic, restrictive, or other cardiomyopathies (DCM, HCM, RCM, or OCM, respectively). Between 2008 and 2015, a total of 326,461 distinct patients had cardiomyopathy-related hospitalizations. The hospital-based prevalence of cardiomyopathy was 809 per million inhabitants (PMI) per year, including 428 PMI for DCM, 101 PMI for HCM, 26 PMI for RCM, and 253 PMI for OCM. Patients with cardiomyopathies accounted for 51% of all heart transplants, 33% of defibrillator implantations, 38% of mechanical circulatory supports, and 11.3% of hospitalizations for heart failure. In patients less than 40 years of age, these figures were 71%, 51%, 63%, and 23%, respectively. Over 2008–2015 and considering all cardiomyopathies, there was a significant increase for heart transplant (average annual percentage change, AAPC: +3.86%, p = 0.0015) and for defibrillator implantation (AAPC: +6.98%, p < 0.0001), and a significant decrease of in-hospital mortality (AAPC: −4.7%, p = 0.0002). This nationwide study shows that cardiomyopathies constitute an important cause of hospitalization, with increasing invasive therapeutic procedures and decreasing mortality.
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Affiliation(s)
- Simon Lannou
- APHP, Service de Cardiologie, Centre de référence des maladies cardiaques héréditaires ou rares, Hôpital Ambroise Paré, 92100 Boulogne Billancourt, France; (S.L.); (N.M.); (O.D.)
| | - Nicolas Mansencal
- APHP, Service de Cardiologie, Centre de référence des maladies cardiaques héréditaires ou rares, Hôpital Ambroise Paré, 92100 Boulogne Billancourt, France; (S.L.); (N.M.); (O.D.)
- Univ Paris-Saclay, Univ Versailles-Saint Quentin, Univ Paris-Sud, Inserm, Clinical Epidemiology Team, CESP Centre for Research in Epidemiology and Population Health, 94807 Villejuif, France; (B.S.); (C.J.)
| | - Cécile Couchoud
- Agence de la Biomédecine, 93212 Saint-Denis la Plaine, France; (C.C.); (M.L.)
| | - Mathilde Lassalle
- Agence de la Biomédecine, 93212 Saint-Denis la Plaine, France; (C.C.); (M.L.)
| | - Olivier Dubourg
- APHP, Service de Cardiologie, Centre de référence des maladies cardiaques héréditaires ou rares, Hôpital Ambroise Paré, 92100 Boulogne Billancourt, France; (S.L.); (N.M.); (O.D.)
- Univ Paris-Saclay, Univ Versailles-Saint Quentin, Univ Paris-Sud, Inserm, Clinical Epidemiology Team, CESP Centre for Research in Epidemiology and Population Health, 94807 Villejuif, France; (B.S.); (C.J.)
| | - Bénédicte Stengel
- Univ Paris-Saclay, Univ Versailles-Saint Quentin, Univ Paris-Sud, Inserm, Clinical Epidemiology Team, CESP Centre for Research in Epidemiology and Population Health, 94807 Villejuif, France; (B.S.); (C.J.)
| | - Christian Jacquelinet
- Univ Paris-Saclay, Univ Versailles-Saint Quentin, Univ Paris-Sud, Inserm, Clinical Epidemiology Team, CESP Centre for Research in Epidemiology and Population Health, 94807 Villejuif, France; (B.S.); (C.J.)
- Agence de la Biomédecine, 93212 Saint-Denis la Plaine, France; (C.C.); (M.L.)
| | - Philippe Charron
- APHP, Service de Cardiologie, Centre de référence des maladies cardiaques héréditaires ou rares, Hôpital Ambroise Paré, 92100 Boulogne Billancourt, France; (S.L.); (N.M.); (O.D.)
- APHP, Département de Génétique, Centre de référence des maladies cardiaques héréditaires ou rares, Hôpital Pitié-Salpêtrière, 75013 Paris, France
- Sorbonne Université, INSERM, UMR_S 1166 and ICAN Institute for Cardiometabolism and Nutrition, 75013 Paris, France
- Correspondence: ; Tel.: +33-1-42-16-13-47
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275
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Reevaluating the Mutation Classification in Genetic Studies of Bradycardia Using ACMG/AMP Variant Classification Framework. Int J Genomics 2020; 2020:2415850. [PMID: 32211440 PMCID: PMC7061116 DOI: 10.1155/2020/2415850] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Accepted: 02/08/2020] [Indexed: 11/17/2022] Open
Abstract
PURPOSE Next-generation sequencing (NGS) has become more accessible, leading to an increasing number of genetic studies of familial bradycardia being reported. However, most of the variants lack full evaluation. The relationship between genetic factors and bradycardia should be summarized and reevaluated. METHODS We summarized genetic studies published in the PubMed database from 2008/1/1 to 2019/9/1 and used the ACMG/AMP classification framework to analyze related sequence variants. RESULTS We identified 88 articles, 99 sequence variants, and 34 genes after searching the PubMed database and classified ABCC9, ACTN2, CACNA1C, DES, HCN4, KCNQ1, KCNH2, LMNA, MECP2, LAMP2, NPPA, SCN5A, and TRPM4 as high-priority genes causing familial bradycardia. Most mutated genes have been reported as having multiple clinical manifestations. CONCLUSIONS For patients with familial CCD, 13 high-priority genes are recommended for evaluation. For genetic studies, variants should be carefully evaluated using the ACMG/AMP variant classification framework before publication.
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276
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Chen XL, Wei XB, Huang JL, Ke ZH, Tan N, Chen JY, Liu YH, Yu DQ. The prognostic nutritional index might predict clinical outcomes in patients with idiopathic dilated cardiomyopathy. Nutr Metab Cardiovasc Dis 2020; 30:393-399. [PMID: 31791635 DOI: 10.1016/j.numecd.2019.10.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Revised: 10/07/2019] [Accepted: 10/08/2019] [Indexed: 02/05/2023]
Abstract
BACKGROUND AND AIMS The prognostic nutritional index (PNI) had been associated with adverse outcomes in numerous clinical conditions. However, its influence on idiopathic dilated cardiomyopathy (DCM) was not determined. This aim of this study was to determine the predictive ability of PNI in patients with idiopathic DCM. METHODS AND RESULTS A total of 1021 consecutive patients with idiopathic DCM were retrospectively included and divided into three groups based on admission PNI tertiles: <41.7 (n = 339), 41.7-47.3 (n = 342), >47.3 (n = 340). The association of PNI with in-hospital major adverse clinical events (MACEs) and death during follow-up was evaluated. In-hospital mortality (2.9% vs. 1.5% vs. 0.0%, respectively; p = 0.006) and MACEs (13.6% vs. 6.7% vs. 3.5%, respectively; p < 0.001) decreased from the lowest to the highest PNI tertile. The optimal cut-off value of PNI to predict in-hospital MACEs was 44.0 (area under the curve: 0.689; 95% confidence interval [CI]: 0.626-0.753; p < 0.001). Multivariate analysis showed that a PNI≤44.0 was an independent risk factor of in-hospital MACEs (odd ratio: 2.86; 95% CI: 1.64-4.98; p < 0.001) and all-cause mortality at a median follow-up of 27 months (hazard ratio: 1.67; 95% CI: 1.11-2.49; p = 0.013). In addition, patients with a PNI≤44.0 had a lower cumulative survival rate during follow-up (log-rank: 35.62; p < 0.001). CONCLUSION The PNI was an independent risk factor for in-hospital MACEs and all-cause mortality at a median follow-up of 27 months in patients with idiopathic DCM; hence, it may be considered a tool for risk assessment.
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Affiliation(s)
- Xiao-Lan Chen
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China; Shantou University Medical College, Shantou, Guangdong, China
| | - Xue-Biao Wei
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China; Department of Gerontological Critical Care Medicine, Guangdong Provincial Geriatrics Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Jie-Leng Huang
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Zu-Hui Ke
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Ning Tan
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Ji-Yan Chen
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Yuan-Hui Liu
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China.
| | - Dan-Qing Yu
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China.
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277
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Zhang Y, Beketaev I, Segura AM, Yu W, Xi Y, Chang J, Ma Y, Wang J. Contribution of Increased Expression of Yin Yang 2 to Development of Cardiomyopathy. Front Mol Biosci 2020; 7:35. [PMID: 32195266 PMCID: PMC7063104 DOI: 10.3389/fmolb.2020.00035] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Accepted: 02/14/2020] [Indexed: 11/13/2022] Open
Abstract
Yin Yang 2 (YY2) is a member of the Yin Yang family of transcription factors. Although the bioactivity of YY2 has been previously studied, its role in cardiovascular diseases is not known. We observed the increased expression of YY2 in failing human hearts compared with control hearts, raising the question of whether YY2 is involved in the pathogenesis of cardiomyopathy. To investigate the potential contribution of YY2 to the development of cardiomyopathy, we crossed two independent transgenic (Tg) mouse lines, pCAG-YY2-Tg+and alpha-myosin heavy chain-cre (α-MHC-Cre), to generate two independent double transgenic (dTg) mouse lines in which the conditional cardiomyocyte-specific expression of YY2 driven by the α-MHC promoter was mediated by Cre recombinase, starting at embryonic day 9.0. In dTg mice, we observed partial embryonic lethality and hearts with defective cardiomyocyte proliferation. Surviving dTg mice from both lines developed cardiomyopathy and heart failure that occurred with aging, showing different degrees of severity that were associated with the level of transgene expression. The development of cardiomyopathy was accompanied by increased levels of cardiac disease markers, apoptosis, and cardiac fibrosis. Our studies further revealed that the Cre-mediated cardiomyocyte-specific increase in YY2 expression led to increased levels of Beclin 1 and LC3II, indicating that YY2 is involved in mediating autophagic activity in mouse hearts in vivo. Also, compared with control hearts, dTg mouse hearts showed increased JNK activity. Because autophagy and JNK activity are important for maintaining cardiac homeostasis, the dysregulation of these signaling pathways may contribute to YY2-induced cardiomyopathy and heart failure in vivo.
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Affiliation(s)
- Yi Zhang
- The First Affiliated Hospital of Hainan Medical University, Haikou, China.,Stem Cell Engineering, Texas Heart Institute, Houston, TX, United States
| | - Ilimbek Beketaev
- Stem Cell Engineering, Texas Heart Institute, Houston, TX, United States
| | - Ana Maria Segura
- Department of Cardiac Pathology, Texas Heart Institute, Houston, TX, United States
| | - Wei Yu
- Department of Biochemistry and Molecular Biology, University of Houston, Houston, TX, United States
| | - Yutao Xi
- Laboratory of Electrophysiology, Texas Heart Institute, Houston, TX, United States
| | - Jiang Chang
- Center for Translational Cancer Research, Institute of Biosciences and Technology, Texas A&M Health Science Center, Houston, TX, United States
| | - Yanlin Ma
- The First Affiliated Hospital of Hainan Medical University, Haikou, China.,Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Medical University, Haikou, China
| | - Jun Wang
- Stem Cell Engineering, Texas Heart Institute, Houston, TX, United States
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278
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Wang DF, Lyu JL, Fang J, Chen J, Chen WW, Huang JQ, Xia SD, Jin JM, Dong FH, Cheng HQ, Xu YK, Guo XG. Impact of LDB3 gene polymorphisms on clinical presentation and implantable cardioverter defibrillator (ICD) implantation in Chinese patients with idiopathic dilated cardiomyopathy. J Zhejiang Univ Sci B 2020; 20:766-775. [PMID: 31379146 DOI: 10.1631/jzus.b1900017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
OBJECTIVE Mutations in LIM domain binding 3 (LDB3) gene cause idiopathic dilated cardiomyopathy (IDCM), a structural heart disease with a complicated genetic background. However, the association of polymorphisms in the LDB3 gene with susceptibility to IDCM in Chinese populations remains unexplored as dose the impact on clinical presentation. METHODS We sequenced all exons and the adjacent part of introns of the LDB3 gene in 159 Chinese Han IDCM patients and 247 healthy controls. Then we detected the distribution of polymorphisms in the LDB3 gene in all participants and assessed their associations with risk of IDCM. Additionally, we conducted a stratified genotype-phenotype correlation analysis. RESULTS The A allele of rs4468255 was significantly associated with IDCM (P<0.01). The rs4468255, rs11812601, rs56165849, and rs3740346 were also associated with diastolic blood pressure (DBP) and left ventricular ejection fraction (LVEF) (P<0.05). Notably, a higher frequency of rs4468255 polymorphism was observed in implantable cardioverter defibrillator (ICD) recipients under a recessive model (P<0.01), whereas the significant association disappeared after adjusting for potential confounders. However, in the dominant model, notable correlations could only be observed after adjusting for multi parameters. CONCLUSIONS The rs4468255 was significantly correlated with IDCM of Chinese Han population. A allele of rs4468255 is higher in IDCM patients with ICD implantation, suggesting the influence of genetic background in the generation of this response. In addition, rs11812601, rs56165849, and rs3740346 in LDB3 show association with brain natriuretic peptide, DBP, and LVEF levels in patients with IDCM but did not show any association with IDCM susceptibility.
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Affiliation(s)
- Dong-Fei Wang
- Department of Cardiology, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Jia-Lan Lyu
- Department of Cardiology, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Juan Fang
- Department of Cardiology, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Jian Chen
- Department of Cardiology, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, China
| | - Wan-Wan Chen
- Department of Cardiology, Pujiang Branch of the First Affiliated Hospital, School of Medicine, Zhejiang University, Jinhua 322200, China
| | - Jia-Qi Huang
- Department of Pathology and Pathophysiology, School of Medicine, Zhejiang University, Hangzhou 310058, China
| | - Shu-Dong Xia
- Department of Cardiology, the Forth Affiliated Hospital, School of Medicine, Zhejiang University, Yiwu 322000, China
| | - Jian-Mei Jin
- Department of Cardiology, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Fang-Hong Dong
- Department of Cardiology, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Hong-Qiang Cheng
- Department of Pathology and Pathophysiology, School of Medicine, Zhejiang University, Hangzhou 310058, China
| | - Ying-Ke Xu
- Key Laboratory of Biomedical Engineering of Ministry of Education, Department of Biomedical Engineering, Zhejiang University, Hangzhou 310027, China
| | - Xiao-Gang Guo
- Department of Cardiology, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
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279
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Law ML, Cohen H, Martin AA, Angulski ABB, Metzger JM. Dysregulation of Calcium Handling in Duchenne Muscular Dystrophy-Associated Dilated Cardiomyopathy: Mechanisms and Experimental Therapeutic Strategies. J Clin Med 2020; 9:jcm9020520. [PMID: 32075145 PMCID: PMC7074327 DOI: 10.3390/jcm9020520] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Accepted: 02/06/2020] [Indexed: 02/07/2023] Open
Abstract
: Duchenne muscular dystrophy (DMD) is an X-linked recessive disease resulting in the loss of dystrophin, a key cytoskeletal protein in the dystrophin-glycoprotein complex. Dystrophin connects the extracellular matrix with the cytoskeleton and stabilizes the sarcolemma. Cardiomyopathy is prominent in adolescents and young adults with DMD, manifesting as dilated cardiomyopathy (DCM) in the later stages of disease. Sarcolemmal instability, leading to calcium mishandling and overload in the cardiac myocyte, is a key mechanistic contributor to muscle cell death, fibrosis, and diminished cardiac contractile function in DMD patients. Current therapies for DMD cardiomyopathy can slow disease progression, but they do not directly target aberrant calcium handling and calcium overload. Experimental therapeutic targets that address calcium mishandling and overload include membrane stabilization, inhibition of stretch-activated channels, ryanodine receptor stabilization, and augmentation of calcium cycling via modulation of the Serca2a/phospholamban (PLN) complex or cytosolic calcium buffering. This paper addresses what is known about the mechanistic basis of calcium mishandling in DCM, with a focus on DMD cardiomyopathy. Additionally, we discuss currently utilized therapies for DMD cardiomyopathy, and review experimental therapeutic strategies targeting the calcium handling defects in DCM and DMD cardiomyopathy.
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Affiliation(s)
- Michelle L. Law
- Department of Family and Consumer Sciences, Robbins College of Health and Human Sciences, Baylor University, Waco, TX 76706, USA;
| | - Houda Cohen
- Department of Integrative Biology and Physiology, University of Minnesota Medical School, Minneapolis, MN 55455, USA; (H.C.); (A.A.M.); (A.B.B.A.)
| | - Ashley A. Martin
- Department of Integrative Biology and Physiology, University of Minnesota Medical School, Minneapolis, MN 55455, USA; (H.C.); (A.A.M.); (A.B.B.A.)
| | - Addeli Bez Batti Angulski
- Department of Integrative Biology and Physiology, University of Minnesota Medical School, Minneapolis, MN 55455, USA; (H.C.); (A.A.M.); (A.B.B.A.)
| | - Joseph M. Metzger
- Department of Integrative Biology and Physiology, University of Minnesota Medical School, Minneapolis, MN 55455, USA; (H.C.); (A.A.M.); (A.B.B.A.)
- Correspondence: ; Tel.: +1-612-625-5902; Fax: +1-612-625-5149
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280
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Shao M, Wang D, Zhou Y, Du K, Liu W. Interleukin-10 delivered by mesenchymal stem cells attenuates experimental autoimmune myocarditis. Int Immunopharmacol 2020; 81:106212. [PMID: 32062070 DOI: 10.1016/j.intimp.2020.106212] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 01/08/2020] [Accepted: 01/08/2020] [Indexed: 12/28/2022]
Abstract
BACKGROUNDS Autoimmune myocarditis is characterized by over-activated immune system attacking the cardiomyocytes, resulting in heart function decline. In the current study, we investigated the therapeutic advantages of delivering Interleukin-10 (IL-10) by mesenchymal stem cells (MSCs), both of which had immune suppression functions, in treating experimental autoimmune myocarditis. METHODS The mouse model of autoimmune myocarditis was established by subcutaneous injection of troponin I in A/J mice. Mouse bone marrow derived mesenchymal stem cells (BM-MSCs) with or without IL-10 overexpression, or the recombinant IL-10 protein were delivered into the mice via tail-vein injection. The inflammation and fibrosis levels of the heart were evaluated with qPCR, ELISA and histological staining. Serum level of anti-troponin-I was assessed by ELISA. Heart function analysis was conducted with echocardiography. RESULTS BM-MSCs overexpressing IL-10 had enhanced immune suppression functions. They also showed improved therapeutic effects from the perspective of heart function and cardiac fibrosis. The anti-troponin-I level was significantly reduced by MSCs overexpressing IL-10 when comparing with the MSCs or IL-10 protein injection. CONCLUSION IL-10 delivered by MSCs showed therapeutic advantages in treating experimental autoimmune myocarditis.
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Affiliation(s)
- Minkun Shao
- Department of Newborn, Shangqiu First People's Hospital, Shangqiu 476100, Henan, China
| | - Dong Wang
- Department of Newborn, Shangqiu First People's Hospital, Shangqiu 476100, Henan, China
| | - Yan Zhou
- Department of Newborn, Shangqiu First People's Hospital, Shangqiu 476100, Henan, China
| | - Kun Du
- Department of Newborn, Shangqiu First People's Hospital, Shangqiu 476100, Henan, China
| | - Wei Liu
- Department of Newborn, Shangqiu First People's Hospital, Shangqiu 476100, Henan, China.
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281
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Jin B, Shi H, Zhu J, Wu B, Geshang Q. Up-regulating autophagy by targeting the mTOR-4EBP1 pathway: a possible mechanism for improving cardiac function in mice with experimental dilated cardiomyopathy. BMC Cardiovasc Disord 2020; 20:56. [PMID: 32019530 PMCID: PMC6998347 DOI: 10.1186/s12872-020-01365-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Accepted: 01/29/2020] [Indexed: 01/22/2023] Open
Abstract
Background Autophagy plays a crucial role in the pathological process of cardiovascular diseases. However, little is known about the pathological mechanism underlying autophagy regulation in dilated cardiomyopathy (DCM). Methods We explored whether up-regulating autophagy could improve cardiac function in mice with experimental DCM through the mTOR-4EBP1 pathway. Animal model of DCM was established in BALB/c mice by immunization with porcine cardiac myosin. Both up- or down-regulation of autophagy were studied by administration of rapamycin or 3-MA in parallel. Morphology, Western blotting, and echocardiography were applied to confirm the pathological mechanisms. Results Autophagy was activated and autophagosomes were significantly increased in the rapamycin group. The collagen volume fraction (CVF) was decreased in the rapamycin group compared with the DCM group (9.21 ± 0.82% vs 14.38 ± 1.24%, P < 0.01). The expression of p-mTOR and p-4EBP1 were significantly decreased in rapamycin-induced autophagy activation, while the levels were increased by down-regulating autophagy with 3-MA. In the rapamycin group, the LVEF and FS were significantly increased compared with the DCM group (54.12 ± 6.48% vs 45.29 ± 6.68%, P < 0.01; 26.89 ± 4.04% vs 22.17 ± 2.82%, P < 0.05). As the inhibitor of autophagy, 3-MA aggravated the progress of maladaptive cardiac remodeling and declined cardiac function in DCM mice. Conclusions The study indicated a possible mechanism for improving cardiac function in mice with experimental DCM by up-regulating autophagy via the mTOR-4EBP1 pathway, which could be a promising therapeutic strategy for DCM.
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Affiliation(s)
- Bo Jin
- Department of Cardiology, Huashan Hospital, Fudan University, 12 Middle Urumqi Road, Shanghai, 200040, China
| | - Haiming Shi
- Department of Cardiology, Huashan Hospital, Fudan University, 12 Middle Urumqi Road, Shanghai, 200040, China
| | - Jun Zhu
- Department of Cardiology, Huashan Hospital, Fudan University, 12 Middle Urumqi Road, Shanghai, 200040, China
| | - Bangwei Wu
- Department of Cardiology, Huashan Hospital, Fudan University, 12 Middle Urumqi Road, Shanghai, 200040, China.
| | - Quzhen Geshang
- Department of Medicine, Medical College of Tibet University, Lasa, Tibet, China
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282
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Witczak JK, Ubaysekara N, Ravindran R, Rice S, Yousef Z, Premawardhana LD. Significant cardiac disease complicating Graves' disease in previously healthy young adults. Endocrinol Diabetes Metab Case Rep 2020; 2020:EDM190132. [PMID: 31967967 PMCID: PMC6993248 DOI: 10.1530/edm-19-0132] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Accepted: 12/19/2019] [Indexed: 12/25/2022] Open
Abstract
SUMMARY Graves' disease is associated with tachydysrythmia, cardiac ischaemia and cardiomyopathy - all uncommon in young adults without previous cardiac disease. We present three young individuals who developed cardiac complications after periods of uncontrolled Graves' disease. Subject 1: A 34-year-old female had severe thyrotoxic symptoms for weeks. Investigations showed fT4: 98.4 (11-25 pmol/L), fT3: 46.9 (3.1-6.8 pmol/L), TSH <0.01 (0.27-4.2 mU/L) and thyrotrophin receptor antibody (TRAb): 34.8 (<0.9 U//l). She had appropriate treatment but several weeks later she became breathless despite improving thyroid function. Echocardiography showed a pericardial effusion of 2.9 cm. She responded well to steroids and NSAIDs but developed active severe Graves' orbitopathy after early total thyroidectomy. Subject 2: A 28-year-old male developed thyrotoxic symptoms (fT4: 38 pmol/L, fT3: 13.9 pmol/L, TSH <0.01 (for over 6 months) and TRAb: 9.3 U/L). One month after starting carbimazole, he developed acute heart failure (HF) due to severe dilated cardiomyopathy - EF 10-15%. He partially recovered after treatment - EF 28% and had early radioiodine treatment. Subject 3: A 42-year-old woman who had been thyrotoxic for several months (fT4: 54.3; fT3 >46.1; TSH <0.01; TRAb: 4.5) developed atrial fibrillation (AF) and heart failure. Echocardiography showed cardiomegaly - EF 29%. She maintains sinus rhythm following early total thyroidectomy (EF 50%). Significant cardiac complications may occur in previously fit young adults, who have had uncontrolled Graves' disease for weeks to months. Cardiac function recovers in the majority, but early definitive treatment should be discussed to avoid Graves' disease relapse and further cardiac decompensation. LEARNING POINTS Cardiac complications of Graves' disease are uncommon in young adults without previous cardiac disease. These complications may however occur if Graves' disease had been poorly controlled for several weeks or months prior to presentation. Persistent symptoms after adequate control should alert clinicians to the possibility of cardiac disease. Specific treatment of Graves' disease and appropriate cardiac intervention results in complete recovery in the majority and carries a good prognosis. Early definitive treatment should be offered to them to prevent cardiac decompensation at times of further relapse.
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Affiliation(s)
- J K Witczak
- Section of Endocrinology, Department of Medicine, Prince Phillip Hospital
- Centre for Endocrine and Diabetes Sciences, University Hospital of Wales, Heath Park, Cardiff, UK
| | - N Ubaysekara
- Centre for Endocrine and Diabetes Sciences, University Hospital of Wales, Heath Park, Cardiff, UK
| | - R Ravindran
- Centre for Endocrine and Diabetes Sciences, University Hospital of Wales, Heath Park, Cardiff, UK
| | - S Rice
- Section of Endocrinology, Department of Medicine, Prince Phillip Hospital
| | - Z Yousef
- Department of Cardiology, University Hospital of Wales, Heath Park, Cardiff, UK
| | - L D Premawardhana
- Centre for Endocrine and Diabetes Sciences, University Hospital of Wales, Heath Park, Cardiff, UK
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283
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Nguyen Q, Lim KRQ, Yokota T. Genome Editing for the Understanding and Treatment of Inherited Cardiomyopathies. Int J Mol Sci 2020; 21:E733. [PMID: 31979133 PMCID: PMC7036815 DOI: 10.3390/ijms21030733] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2019] [Revised: 01/16/2020] [Accepted: 01/19/2020] [Indexed: 02/08/2023] Open
Abstract
Cardiomyopathies are diseases of heart muscle, a significant percentage of which are genetic in origin. Cardiomyopathies can be classified as dilated, hypertrophic, restrictive, arrhythmogenic right ventricular or left ventricular non-compaction, although mixed morphologies are possible. A subset of neuromuscular disorders, notably Duchenne and Becker muscular dystrophies, are also characterized by cardiomyopathy aside from skeletal myopathy. The global burden of cardiomyopathies is certainly high, necessitating further research and novel therapies. Genome editing tools, which include zinc finger nucleases (ZFNs), transcription activator-like effector nucleases (TALENs) and clustered regularly interspaced short palindromic repeats (CRISPR) systems have emerged as increasingly important technologies in studying this group of cardiovascular disorders. In this review, we discuss the applications of genome editing in the understanding and treatment of cardiomyopathy. We also describe recent advances in genome editing that may help improve these applications, and some future prospects for genome editing in cardiomyopathy treatment.
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Affiliation(s)
- Quynh Nguyen
- Department of Medical Genetics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB T6G2H7, Canada; (Q.N.); (K.R.Q.L.)
| | - Kenji Rowel Q. Lim
- Department of Medical Genetics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB T6G2H7, Canada; (Q.N.); (K.R.Q.L.)
| | - Toshifumi Yokota
- Department of Medical Genetics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB T6G2H7, Canada; (Q.N.); (K.R.Q.L.)
- The Friends of Garrett Cumming Research & Muscular Dystrophy Canada, HM Toupin Neurological Science Research Chair, Edmonton, AB T6G2H7, Canada
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284
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Chen J, Yuan H, Xie K, Wang X, Tan L, Zou Y, Yang Y, Pan L, Xiao J, Chen G, Liu Y. A novel TAB2 nonsense mutation (p.S149X) causing autosomal dominant congenital heart defects: a case report of a Chinese family. BMC Cardiovasc Disord 2020; 20:27. [PMID: 31959127 PMCID: PMC6971906 DOI: 10.1186/s12872-019-01322-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 12/29/2019] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND TAB2 is an activator of MAP 3 K7/TAK1, which is required for the IL-1 induced signal pathway. Microdeletions encompassing TAB2 have been detected in various patients with congenital heart defects (CHD), indicating that haploinsufficiency of TAB2 causes CHD. To date, seven variants within TAB2 were reported associated with CHD, only two of them are nonsense mutations. CASE PRESENTATION Here we describe a three-generation Chinese family that included five CHD patients with heart valvular defects, such as mitral or tricuspid valves prolapse or regurgitation, and aortic valve stenosis or regurgitation. Our proband was a pregnant woman presenting with mitral, tricuspid, and aortic defects; her first child experienced sudden cardiac death at the age of 2 years. Whole-exome sequencing of the proband revealed a novel nonsense variant in TAB2 (c.C446G, p.S149X), which results in the elimination of the majority of C-terminal amino acids of TAB2, including the critical TAK1-binding domain. The variant was identified in five affected patients but not in the eight unaffected family members using Sanger sequencing and was classified as "pathogenic" according to the latest recommendation on sequence variants laid out by the American College of Medical Genetics and Genomics and the Association for Molecular Pathology. CONCLUSION We described a family with CHD caused by a novel TAB2 nonsense mutation. Our study broadens the mutation spectrum of TAB2; to the best of our knowledge, this is the first report of a pathogenic mutation within TAB2 in a Chinese population.
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Affiliation(s)
- Jia Chen
- Prenatal Diagnosis Center, Jiangxi Provincial Maternal and Child Health Hospital, Nanchang, 330006, Jiangxi, China
| | - Huizhen Yuan
- Prenatal Diagnosis Center, Jiangxi Provincial Maternal and Child Health Hospital, Nanchang, 330006, Jiangxi, China
| | - Kang Xie
- Prenatal Diagnosis Center, Jiangxi Provincial Maternal and Child Health Hospital, Nanchang, 330006, Jiangxi, China
| | - Xinrong Wang
- Prenatal Diagnosis Center, Jiangxi Provincial Maternal and Child Health Hospital, Nanchang, 330006, Jiangxi, China
| | - Linglong Tan
- Prenatal Diagnosis Center, Jiangxi Provincial Maternal and Child Health Hospital, Nanchang, 330006, Jiangxi, China
| | - Yongyi Zou
- Prenatal Diagnosis Center, Jiangxi Provincial Maternal and Child Health Hospital, Nanchang, 330006, Jiangxi, China
| | - Yan Yang
- Prenatal Diagnosis Center, Jiangxi Provincial Maternal and Child Health Hospital, Nanchang, 330006, Jiangxi, China
| | - Lu Pan
- Prenatal Diagnosis Center, Jiangxi Provincial Maternal and Child Health Hospital, Nanchang, 330006, Jiangxi, China
| | - Junfang Xiao
- Prenatal Diagnosis Center, Jiangxi Provincial Maternal and Child Health Hospital, Nanchang, 330006, Jiangxi, China
| | - Ge Chen
- Central Laboratory, Jiangxi Provincial Maternal and Child Health Hospital, Nanchang, 330006, Jiangxi, China
| | - Yanqiu Liu
- Prenatal Diagnosis Center, Jiangxi Provincial Maternal and Child Health Hospital, Nanchang, 330006, Jiangxi, China.
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285
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Xuan T, Wang D, Lv J, Pan Z, Fang J, Xiang Y, Cheng H, Wang X, Guo X. Downregulation of Cypher induces apoptosis in cardiomyocytes via Akt/p38 MAPK signaling pathway. Int J Med Sci 2020; 17:2328-2337. [PMID: 32922198 PMCID: PMC7484636 DOI: 10.7150/ijms.48872] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Accepted: 08/17/2020] [Indexed: 01/12/2023] Open
Abstract
Background: Dilated cardiomyopathy (DCM) is considered as the most common form of non-ischemic cardiomyopathy with a high mortality worldwide. Cytoskeleton protein Cypher plays an important role in maintaining cardiac function. Genetic studies in human and animal models revealed that Cypher is involved in the development of DCM. However, the underlying molecular mechanism is not fully understood. Accumulating evidences suggest that apoptosis in myocytes may contribute to DCM. Thus, the purpose of this study is to define whether lack of Cypher in cardiomyocytes can elevate apoptosis signaling and lead to DCM eventually. Methods and Results: Cypher-siRNA sufficiently inhibited Cypher expression in cardiomyocytes. TUNEL-positive cardiomyocytes were increased in both Cypher knockdown neonatal rat cardiomyocytes and Cypher knockout mice hearts, which were rare in the control group. Flow cytometry further confirmed that downregulation of Cypher significantly increased myocytes apoptosis in vitro. Cell counting kit-8 assay revealed that Cypher knockdown in H9c2 cells significantly reduced cell viability. Cypher knockdown was found to increase cleaved caspase-3 expression and suppress p21, ratio of bcl-2 to Bax. Cypher-deficiency induced apoptosis was linked to downregulation of Akt activation and elevated p-p38 MAPK accumulation. Pharmacological activation of Akt with SC79 attenuated apoptosis with enhanced phosphorylation of Akt and reduced p-p38 MAPK and Bax expression. Conclusions: Downregulation of Cypher participates in the promotion of cardiomyocytes apoptosis through inhibiting Akt dependent pathway and enhancing p38 MAPK phosphorylation. These findings may provide a new potential therapeutic strategy for the treatment of DCM.
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Affiliation(s)
- Tianming Xuan
- Department of Cardiology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Dongfei Wang
- Department of Cardiology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Jialan Lv
- Department of Cardiology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Zhicheng Pan
- Department of Cardiology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Juan Fang
- Department of Cardiology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yin Xiang
- Department of Cardiology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Hongqiang Cheng
- Department of Pathology and Pathophysiology, Zhejiang University School of Medicine, Hangzhou, China
| | - Xingxiang Wang
- Department of Cardiology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Xiaogang Guo
- Department of Cardiology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
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286
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Chiva-Blanch G, Badimon L. Benefits and Risks of Moderate Alcohol Consumption on Cardiovascular Disease: Current Findings and Controversies. Nutrients 2019; 12:nu12010108. [PMID: 31906033 PMCID: PMC7020057 DOI: 10.3390/nu12010108] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 12/23/2019] [Accepted: 12/25/2019] [Indexed: 02/06/2023] Open
Abstract
Alcohol has a hormetic physiological behavior that results in either increased or decreased cardiovascular risk depending on the amount consumed, drinking frequency, pattern of consumption, and the outcomes under study or even the type of alcoholic beverage consumed. However, the vast majority of studies elucidating the role of alcohol in cardiovascular and in the global burden of disease relies on epidemiological studies of associative nature which carry several limitations. This is why the cardiovascular benefits of low–moderate alcohol consumption are being questioned and perhaps might have been overestimated. Thus, the aim of this review was to critically discuss the current knowledge on the relationship between alcohol intake and cardiovascular disease. Besides new evidence associating low and moderate alcohol consumption with decreased risk of cardiovascular disease, several questions remain unanswered related to the concrete amount of safe consumption, the type of alcoholic beverage, and the age-, sex-, and genetic/ethnical-specific differences in alcohol consumption.
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Affiliation(s)
- Gemma Chiva-Blanch
- Cardiovascular Program ICCC; Institut de Recerca Hospital Santa Creu i Sant Pau—IIB Sant Pau, Sant Antoni Maria Claret, 167, 08025 Barcelona, Spain
| | - Lina Badimon
- Cardiovascular Program ICCC; Institut de Recerca Hospital Santa Creu i Sant Pau—IIB Sant Pau, Sant Antoni Maria Claret, 167, 08025 Barcelona, Spain
- CIBER Enfermedades Cardiovasculares (CIBERCV), Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain
- Correspondence: ; Tel.: +34-935565882
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287
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Angelini A, Gorey MA, Dumont F, Mougenot N, Chatzifrangkeskou M, Muchir A, Li Z, Mericskay M, Decaux JF. Cardioprotective effects of α-cardiac actin on oxidative stress in a dilated cardiomyopathy mouse model. FASEB J 2019; 34:2987-3005. [PMID: 31908029 DOI: 10.1096/fj.201902389r] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 12/12/2019] [Accepted: 12/15/2019] [Indexed: 12/12/2022]
Abstract
The expression of α-cardiac actin, a major constituent of the cytoskeleton of cardiomyocytes, is dramatically decreased in a mouse model of dilated cardiomyopathy triggered by inducible cardiac-specific serum response factor (Srf) gene disruption that could mimic some forms of human dilated cardiomyopathy. To investigate the consequences of the maintenance of α-cardiac actin expression in this model, we developed a new transgenic mouse based on Cre/LoxP strategy, allowing together the induction of SRF loss and a compensatory expression of α-cardiac actin. Here, we report that maintenance of α-cardiac actin within cardiomyocytes temporally preserved cytoarchitecture from adverse cardiac remodeling through a positive impact on both structural and transcriptional levels. These protective effects were accompanied in vivo by the decrease of ROS generation and protein carbonylation and the downregulation of NADPH oxidases NOX2 and NOX4. We also show that ectopic expression of α-cardiac actin protects HEK293 cells against oxidative stress induced by H2 O2 . Oxidative stress plays an important role in the development of cardiac remodeling and contributes also to the pathogenesis of heart failure. Taken together, these findings indicate that α-cardiac actin could be involved in the regulation of oxidative stress that is a leading cause of adverse remodeling during dilated cardiomyopathy development.
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Affiliation(s)
- Aude Angelini
- Biological Adaptation and Ageing, Institut de Biologie Paris-Seine (IBPS), CNRS UMR 8256, INSERM ERL U1164, Sorbonne Université, Paris, France
| | - Mark-Alexander Gorey
- Biological Adaptation and Ageing, Institut de Biologie Paris-Seine (IBPS), CNRS UMR 8256, INSERM ERL U1164, Sorbonne Université, Paris, France
| | - Florent Dumont
- Signalling and Cardiovascular Pathophysiology, INSERM UMR-S 1180, Université Paris-Saclay, Châtenay-Malabry, France
| | - Nathalie Mougenot
- Faculté de Médecine, Pierre et Marie Curie, INSERM UMS 28 Phénotypage du petit animal, Sorbonne Université, Paris, France
| | - Maria Chatzifrangkeskou
- Center of Research in Myology, Institut de Myologie, INSERM UMRS 974, Sorbonne Université, Paris, France
| | - Antoine Muchir
- Center of Research in Myology, Institut de Myologie, INSERM UMRS 974, Sorbonne Université, Paris, France
| | - Zhenlin Li
- Biological Adaptation and Ageing, Institut de Biologie Paris-Seine (IBPS), CNRS UMR 8256, INSERM ERL U1164, Sorbonne Université, Paris, France
| | - Mathias Mericskay
- Signalling and Cardiovascular Pathophysiology, INSERM UMR-S 1180, Université Paris-Saclay, Châtenay-Malabry, France
| | - Jean-Francois Decaux
- Biological Adaptation and Ageing, Institut de Biologie Paris-Seine (IBPS), CNRS UMR 8256, INSERM ERL U1164, Sorbonne Université, Paris, France
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288
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Cardiac-Specific Overexpression of Catalytically Inactive Corin Reduces Edema, Contractile Dysfunction, and Death in Mice with Dilated Cardiomyopathy. Int J Mol Sci 2019; 21:ijms21010203. [PMID: 31892216 PMCID: PMC6981738 DOI: 10.3390/ijms21010203] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 12/20/2019] [Accepted: 12/24/2019] [Indexed: 12/11/2022] Open
Abstract
Humans with dilated cardiomyopathy (DCM) and heart failure (HF) develop low levels of corin, a multi-domain, cardiac-selective serine protease involved in natriuretic peptide cleavage and sodium and water regulation. However, experimental restoration of corin levels markedly attenuates HF progression. To determine whether the beneficial effects of corin in HF require catalytic activity, we engineered cardiac overexpression of an enzymatically inactive corin transgene (corin-Tg(i)). On a wild-type (WT) background, corin-Tg(i) had no evident phenotypic effects. However, in a well-established genetic model of DCM, corin-Tg(i)/DCM mice had increased survival (p < 0.01 to 0.001) vs. littermate corin-WT/DCM controls. Pleural effusion (p < 0.01), lung edema (p < 0.05), systemic extracellular free water (p < 0.01), and heart weight were decreased (p < 0.01) in corin-Tg(i)/DCM vs. corin-WT/DCM mice. Cardiac ejection fraction and fractional shortening improved (p < 0.01), while ventricular dilation decreased (p < 0.0001) in corin-Tg(i)/DCM mice. Plasma atrial natriuretic peptide, cyclic guanosine monophosphate, and neprilysin were significantly decreased. Cardiac phosphorylated glycogen synthase kinase-3β (pSer9-GSK3β) levels were increased in corin(i)-Tg/DCM mice (p < 0.01). In summary, catalytically inactive corin-Tg(i) decreased fluid retention, improved contractile function, decreased HF biomarkers, and diminished cardiac GSK3β activity. Thus, the protective effects of cardiac corin on HF progression and survival in experimental DCM do not require the serine protease activity of the molecule.
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289
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Sacchetto C, Sequeira V, Bertero E, Dudek J, Maack C, Calore M. Metabolic Alterations in Inherited Cardiomyopathies. J Clin Med 2019; 8:jcm8122195. [PMID: 31842377 PMCID: PMC6947282 DOI: 10.3390/jcm8122195] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 12/06/2019] [Accepted: 12/09/2019] [Indexed: 12/12/2022] Open
Abstract
The normal function of the heart relies on a series of complex metabolic processes orchestrating the proper generation and use of energy. In this context, mitochondria serve a crucial role as a platform for energy transduction by supplying ATP to the varying demand of cardiomyocytes, involving an intricate network of pathways regulating the metabolic flux of substrates. The failure of these processes results in structural and functional deficiencies of the cardiac muscle, including inherited cardiomyopathies. These genetic diseases are characterized by cardiac structural and functional anomalies in the absence of abnormal conditions that can explain the observed myocardial abnormality, and are frequently associated with heart failure. Since their original description, major advances have been achieved in the genetic and phenotype knowledge, highlighting the involvement of metabolic abnormalities in their pathogenesis. This review provides a brief overview of the role of mitochondria in the energy metabolism in the heart and focuses on metabolic abnormalities, mitochondrial dysfunction, and storage diseases associated with inherited cardiomyopathies.
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Affiliation(s)
- Claudia Sacchetto
- IMAiA—Institute for Molecular Biology and RNA Technology, Faculty of Health, Universiteitssingel 50, 6229ER Maastricht, The Netherlands;
- Medicine and Life Sciences, Faculty of Science and Engineering, Universiteitssingel 50, 6229ER Maastricht, The Netherlands
- Department of Biology, University of Padova, via Ugo Bassi 58B, 35121 Padova, Italy
| | - Vasco Sequeira
- Department of Translational Science, Comprehensive Heart Failure Center, University Clinic Würzburg, Am Schwarzenberg 15, 9708 Würzburg, Germany; (V.S.); (E.B.); (J.D.)
| | - Edoardo Bertero
- Department of Translational Science, Comprehensive Heart Failure Center, University Clinic Würzburg, Am Schwarzenberg 15, 9708 Würzburg, Germany; (V.S.); (E.B.); (J.D.)
| | - Jan Dudek
- Department of Translational Science, Comprehensive Heart Failure Center, University Clinic Würzburg, Am Schwarzenberg 15, 9708 Würzburg, Germany; (V.S.); (E.B.); (J.D.)
| | - Christoph Maack
- Department of Translational Science, Comprehensive Heart Failure Center, University Clinic Würzburg, Am Schwarzenberg 15, 9708 Würzburg, Germany; (V.S.); (E.B.); (J.D.)
- Correspondence: (C.M.); (M.C.)
| | - Martina Calore
- IMAiA—Institute for Molecular Biology and RNA Technology, Faculty of Health, Universiteitssingel 50, 6229ER Maastricht, The Netherlands;
- Medicine and Life Sciences, Faculty of Science and Engineering, Universiteitssingel 50, 6229ER Maastricht, The Netherlands
- Correspondence: (C.M.); (M.C.)
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290
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Abstract
The B cell lymphoma 2-associated anthanogene (BAG3) is an anti-apoptotic co-chaperone protein. Previous reports suggest that mutations in BAG3 are associated with dilated cardiomyopathy. This review aims to summarize the current understanding of the relationship between BAG3 mutations and dilated cardiomyopathy, primarily focusing on the role and protective mechanism of BAG3 in cardiomyocytes from individuals with dilated cardiomyopathy. The results of published studies show that BAG3 is critically important for reducing cardiomyocyte apoptosis, maintaining protein homeostasis, regulating mitochondrial stability, modulating myocardial contraction, and reducing cardiac arrhythmia, which suggests an indispensable protective mechanism of BAG3 in dilated cardiomyopathy. The significant role of BAG3 in protecting cardiomyocytes provides a new direction for the diagnosis and treatment of dilated cardiomyopathy. However, further research is required to explore the molecular mechanisms that regulate BAG3 expression, to identify a novel therapy for patients with dilated cardiomyopathy.
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291
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Buja LM, Ottaviani G, Ilic M, Zhao B, Lelenwa LC, Segura AM, Bai Y, Chen A, Akkanti B, Hussain R, Nathan S, Petrovic M, Radovancevic R, Gregoric ID, Kar B. Clinicopathological manifestations of myocarditis in a heart failure population. Cardiovasc Pathol 2019; 45:107190. [PMID: 31896440 DOI: 10.1016/j.carpath.2019.107190] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 11/23/2019] [Accepted: 11/26/2019] [Indexed: 12/20/2022] Open
Abstract
Myocarditis continues to present challenges in diagnosis and management. The goal of this study is to determine the occurrence and manifestations of myocarditis in a heart failure (HF) population. The analyzed patients had acute or persistent HF and were referred over a 6-year period to a quaternary HF center for advanced HF therapies including mechanical circulatory support, left ventricular assist device (LVAD) implantation, and/or heart transplantation. The histopathological diagnosis of myocarditis was made based on the presence of an inflammatory infiltrate of the myocardium, typically with associated cardiomyocyte (CMC) damage, combined as indicated with immunohistochemical and molecular biology characterization. The pathological findings were correlated with a panel of clinical parameters and clinical course of the patients. Myocarditis was identified in 36 patients, with initial diagnoses made in 10 (40%) of 25 by endomyocardial biopsy (EMB), 1 by atrial biopsy (maze procedure), 7 (2.1%) of 331 at LVAD implantation, and 18 (7.8%) of 229 in the explanted heart. There were 20 cases of lymphocytic myocarditis, 4 cases of giant cell myocarditis, 3 cases of eosinophilic myocarditis, and 9 cases of lymphohistocytic with granulomas myocarditis - cardiac sarcoidosis. EMB was performed in 25 patients and was positive in 10 (40%) of cases. Myocarditis was found in 23 explanted hearts including 18 cases de novo and 5 cases with a previously positive specimen. Of the 23 explanted hearts, 21 were nonischemic cardiomyopathy and 2 were ischemic cardiomyopathy. Our findings show that, in patients presenting to a quaternary medical center, myocarditis can be manifest as acute HF as well as a complicating factor in chronic HF.
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Affiliation(s)
- Louis Maximilian Buja
- Department of Pathology and Laboratory Medicine, The University of Texas Health Science Center at Department of Pathology and Laboratory Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA; Cardiovascular Pathology Research Laboratory, Texas Heart Institute, CHI St. Luke's Hospital, Houston, TX, USA.
| | - Giulia Ottaviani
- Department of Pathology and Laboratory Medicine, The University of Texas Health Science Center at Department of Pathology and Laboratory Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA; Lino Rossi Research Center, Department of Biomedical, Surgical and Dental Sciences, University of Milan, Milan, Italy
| | - Milica Ilic
- Center for Advanced Heart Failure, Cardiopulmonary Support and Transplantation Program, Memorial Hermann Heart & Vascular Institute, Memorial Hermann Hospital - Texas Medical Center, Houston, TX, USA
| | - Bihong Zhao
- Department of Pathology and Laboratory Medicine, The University of Texas Health Science Center at Department of Pathology and Laboratory Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA
| | - Laura C Lelenwa
- Department of Pathology and Laboratory Medicine, The University of Texas Health Science Center at Department of Pathology and Laboratory Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA
| | - Ana Maria Segura
- Cardiovascular Pathology Research Laboratory, Texas Heart Institute, CHI St. Luke's Hospital, Houston, TX, USA
| | - Yu Bai
- Department of Pathology and Laboratory Medicine, The University of Texas Health Science Center at Department of Pathology and Laboratory Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA
| | - Alice Chen
- Department of Pathology and Laboratory Medicine, The University of Texas Health Science Center at Department of Pathology and Laboratory Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA
| | - Bindu Akkanti
- Center for Advanced Heart Failure, Cardiopulmonary Support and Transplantation Program, Memorial Hermann Heart & Vascular Institute, Memorial Hermann Hospital - Texas Medical Center, Houston, TX, USA
| | - Rahat Hussain
- Center for Advanced Heart Failure, Cardiopulmonary Support and Transplantation Program, Memorial Hermann Heart & Vascular Institute, Memorial Hermann Hospital - Texas Medical Center, Houston, TX, USA
| | - Sriram Nathan
- Center for Advanced Heart Failure, Cardiopulmonary Support and Transplantation Program, Memorial Hermann Heart & Vascular Institute, Memorial Hermann Hospital - Texas Medical Center, Houston, TX, USA
| | - Marija Petrovic
- Center for Advanced Heart Failure, Cardiopulmonary Support and Transplantation Program, Memorial Hermann Heart & Vascular Institute, Memorial Hermann Hospital - Texas Medical Center, Houston, TX, USA
| | - Rajko Radovancevic
- Center for Advanced Heart Failure, Cardiopulmonary Support and Transplantation Program, Memorial Hermann Heart & Vascular Institute, Memorial Hermann Hospital - Texas Medical Center, Houston, TX, USA
| | - Igor D Gregoric
- Center for Advanced Heart Failure, Cardiopulmonary Support and Transplantation Program, Memorial Hermann Heart & Vascular Institute, Memorial Hermann Hospital - Texas Medical Center, Houston, TX, USA
| | - Biswajit Kar
- Center for Advanced Heart Failure, Cardiopulmonary Support and Transplantation Program, Memorial Hermann Heart & Vascular Institute, Memorial Hermann Hospital - Texas Medical Center, Houston, TX, USA
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292
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Luxán G, Stewen J, Díaz N, Kato K, Maney SK, Aravamudhan A, Berkenfeld F, Nagelmann N, Drexler HC, Zeuschner D, Faber C, Schillers H, Hermann S, Wiseman J, Vaquerizas JM, Pitulescu ME, Adams RH. Endothelial EphB4 maintains vascular integrity and transport function in adult heart. eLife 2019; 8:45863. [PMID: 31782728 PMCID: PMC6884395 DOI: 10.7554/elife.45863] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Accepted: 11/15/2019] [Indexed: 12/17/2022] Open
Abstract
The homeostasis of heart and other organs relies on the appropriate provision of nutrients and functional specialization of the local vasculature. Here, we have used mouse genetics, imaging and cell biology approaches to investigate how homeostasis in the adult heart is controlled by endothelial EphB4 and its ligand ephrin-B2, which are known regulators of vascular morphogenesis and arteriovenous differentiation during development. We show that inducible and endothelial cell-specific inactivation of Ephb4 in adult mice is compatible with survival, but leads to rupturing of cardiac capillaries, cardiomyocyte hypertrophy, and pathological cardiac remodeling. In contrast, EphB4 is not required for integrity and homeostasis of capillaries in skeletal muscle. Our analysis of mutant mice and cultured endothelial cells shows that EphB4 controls the function of caveolae, cell-cell adhesion under mechanical stress and lipid transport. We propose that EphB4 maintains critical functional properties of the adult cardiac vasculature and thereby prevents dilated cardiomyopathy-like defects.
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Affiliation(s)
- Guillermo Luxán
- Department of Tissue Morphogenesis, Max Planck Institute for Molecular Biomedicine, Münster, Germany
| | - Jonas Stewen
- Department of Tissue Morphogenesis, Max Planck Institute for Molecular Biomedicine, Münster, Germany
| | - Noelia Díaz
- Regulatory Genomics Laboratory, Max Planck Institute for Molecular Biomedicine, Münster, Germany
| | - Katsuhiro Kato
- Department of Tissue Morphogenesis, Max Planck Institute for Molecular Biomedicine, Münster, Germany
| | - Sathish K Maney
- Department of Tissue Morphogenesis, Max Planck Institute for Molecular Biomedicine, Münster, Germany
| | - Anusha Aravamudhan
- Department of Tissue Morphogenesis, Max Planck Institute for Molecular Biomedicine, Münster, Germany
| | - Frank Berkenfeld
- Department of Tissue Morphogenesis, Max Planck Institute for Molecular Biomedicine, Münster, Germany
| | - Nina Nagelmann
- Department of Clinical Radiology, University Hospital Münster, Münster, Germany
| | - Hannes Ca Drexler
- Bioanalytical Mass Spectrometry Unit, Max Planck Institute for Molecular Biomedicine, Münster, Germany
| | - Dagmar Zeuschner
- Electron Microscopy Unit, Max Planck Institute for Molecular Biomedicine, Münster, Germany
| | - Cornelius Faber
- Department of Clinical Radiology, University Hospital Münster, Münster, Germany
| | - Hermann Schillers
- Institute for Physiology II, University of Münster, Münster, Germany
| | - Sven Hermann
- European Institute for Molecular Imaging, University of Münster, Münster, Germany
| | - John Wiseman
- Discovery Biology, Discovery Sciences, IMED Biotech Unit, AstraZeneca, Gothenburg, Sweden
| | - Juan M Vaquerizas
- Regulatory Genomics Laboratory, Max Planck Institute for Molecular Biomedicine, Münster, Germany
| | - Mara E Pitulescu
- Department of Tissue Morphogenesis, Max Planck Institute for Molecular Biomedicine, Münster, Germany
| | - Ralf H Adams
- Department of Tissue Morphogenesis, Max Planck Institute for Molecular Biomedicine, Münster, Germany.,Faculty of Medicine, University of Münster, Münster, Germany
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293
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Burns KE, Deane-Alder KD, Bellissima BL, Tingle MD. Circulating microRNA as biomarkers of clozapine-induced cardiotoxicity. Biomarkers 2019; 25:76-85. [PMID: 31722571 DOI: 10.1080/1354750x.2019.1693631] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Purpose: This work investigated the utility of circulating microRNA (miRNA) as biomarkers of clozapine (CLZ)-induced cardiotoxicities: serious adverse events with an unusually high incidence in Australia and New Zealand.Methods: Global plasma miRNA expression was analysed by microarray in patients taking CLZ, to investigate differential expression between CLZ-induced cardiotoxicity cases (n = 6) and matched control patients (n = 12). The results were validated by RT-qPCR using a panel of 17 miRNA, and their expression was examined in both CLZ-naïve healthy volunteers (n = 12) and an expanded cohort of CLZ-taking patients (n = 21). Temporal changes were also examined in two healthy volunteers and two CLZ-induced cardiotoxicity patients.Results: No miRNA were differentially expressed between cases of CLZ-induced cardiotoxicity and control patients. Circulating levels of several miRNA were significantly altered in CLZ-taking patients compared to healthy volunteers, with miR-16-5p, miR-25-3p, miR-92a-3p, miR-320a-3p, and miR-486-3p upregulated and miR-22-3p, miR-126-3p, and miR-142-3p downregulated in the patients. Five of these (miR-16-5p, miR-22-3p, miR-92a-3p, miR-126-3p, miR-142-3p) were stably expressed over time in both CLZ-induced cardiotoxicity patients and CLZ-naïve healthy volunteers.Conclusions: Plasma miRNA are not useful biomarkers of CLZ-induced cardiotoxicity, however patients taking CLZ have significantly altered circulating miRNA compared to healthy volunteers.
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Affiliation(s)
- Kathryn E Burns
- Department of Molecular Medicine and Pathology, University of Auckland, Auckland, New Zealand
| | - Kieran D Deane-Alder
- Department of Pharmacology and Clinical Pharmacology, University of Auckland, Auckland, New Zealand
| | - Brandi L Bellissima
- Department of Pharmacology and Clinical Pharmacology, University of Auckland, Auckland, New Zealand
| | - Malcolm D Tingle
- Department of Pharmacology and Clinical Pharmacology, University of Auckland, Auckland, New Zealand
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294
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Gil-Cruz C, Perez-Shibayama C, De Martin A, Ronchi F, van der Borght K, Niederer R, Onder L, Lütge M, Novkovic M, Nindl V, Ramos G, Arnoldini M, Slack EM, Boivin-Jahns V, Jahns R, Wyss M, Mooser C, Lambrecht BN, Maeder MT, Rickli H, Flatz L, Eriksson U, Geuking MB, McCoy KD, Ludewig B. Microbiota-derived peptide mimics drive lethal inflammatory cardiomyopathy. Science 2019; 366:881-886. [DOI: 10.1126/science.aav3487] [Citation(s) in RCA: 104] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Revised: 06/13/2019] [Accepted: 10/09/2019] [Indexed: 12/29/2022]
Abstract
Myocarditis can develop into inflammatory cardiomyopathy through chronic stimulation of myosin heavy chain 6–specific T helper (TH)1 and TH17 cells. However, mechanisms governing the cardiotoxicity programming of heart-specific T cells have remained elusive. Using a mouse model of spontaneous autoimmune myocarditis, we show that progression of myocarditis to lethal heart disease depends on cardiac myosin–specific TH17 cells imprinted in the intestine by a commensalBacteroidesspecies peptide mimic. Both the successful prevention of lethal disease in mice by antibiotic therapy and the significantly elevatedBacteroides-specific CD4+T cell and B cell responses observed in human myocarditis patients suggest that mimic peptides from commensal bacteria can promote inflammatory cardiomyopathy in genetically susceptible individuals. The ability to restrain cardiotoxic T cells through manipulation of the microbiome thereby transforms inflammatory cardiomyopathy into a targetable disease.
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Affiliation(s)
- Cristina Gil-Cruz
- Institute of Immunobiology, Kantonsspital St. Gallen, St. Gallen, Switzerland
| | | | - Angelina De Martin
- Institute of Immunobiology, Kantonsspital St. Gallen, St. Gallen, Switzerland
| | - Francesca Ronchi
- Maurice Müller Laboratories, Department of Biomedical Research, Universitätsklinik für Viszerale Chirurgie und Medizin Inselspital, University of Berne, Berne, Switzerland
| | - Katrien van der Borght
- VIB Center for Inflammation Research, Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Rebekka Niederer
- Institute of Immunobiology, Kantonsspital St. Gallen, St. Gallen, Switzerland
| | - Lucas Onder
- Institute of Immunobiology, Kantonsspital St. Gallen, St. Gallen, Switzerland
| | - Mechthild Lütge
- Institute of Immunobiology, Kantonsspital St. Gallen, St. Gallen, Switzerland
| | - Mario Novkovic
- Institute of Immunobiology, Kantonsspital St. Gallen, St. Gallen, Switzerland
| | - Veronika Nindl
- Institute of Immunobiology, Kantonsspital St. Gallen, St. Gallen, Switzerland
| | - Gustavo Ramos
- Department of Internal Medicine I, University Hospital Würzburg, Würzburg, Germany
- Comprehensive Heart Failure Center, University Hospital of Würzburg, Würzburg, Germany
| | - Markus Arnoldini
- Institute of Food, Nutrition and Health, ETH, Zurich, Switzerland
| | - Emma M.C. Slack
- Institute of Food, Nutrition and Health, ETH, Zurich, Switzerland
| | - Valérie Boivin-Jahns
- Comprehensive Heart Failure Center, University Hospital of Würzburg, Würzburg, Germany
- Institute of Pharmacology and Toxicology, University of Würzburg, Würzburg, Germany
| | - Roland Jahns
- Comprehensive Heart Failure Center, University Hospital of Würzburg, Würzburg, Germany
- Interdisciplinary Bank of Biomaterials and Data Würzburg (IBDW), University Hospital of Würzburg, Würzburg, Germany
| | - Madeleine Wyss
- Department of Physiology and Pharmacology, Snyder Institute for Chronic Diseases, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Catherine Mooser
- Maurice Müller Laboratories, Department of Biomedical Research, Universitätsklinik für Viszerale Chirurgie und Medizin Inselspital, University of Berne, Berne, Switzerland
| | - Bart N. Lambrecht
- VIB Center for Inflammation Research, Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Micha T. Maeder
- Cardiology Division, Kantonsspital St. Gallen, St. Gallen, Switzerland
| | - Hans Rickli
- Cardiology Division, Kantonsspital St. Gallen, St. Gallen, Switzerland
| | - Lukas Flatz
- Institute of Immunobiology, Kantonsspital St. Gallen, St. Gallen, Switzerland
| | - Urs Eriksson
- Center for Molecular Cardiology University of Zurich, Zurich, Switzerland
- Department of Medicine, GZO Regional Health Center, Wetzikon, Switzerland
| | - Markus B. Geuking
- Department of Microbiology, Immunology and Infectious Diseases, Snyder Institute for Chronic Diseases, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Kathy D. McCoy
- Department of Physiology and Pharmacology, Snyder Institute for Chronic Diseases, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Burkhard Ludewig
- Institute of Immunobiology, Kantonsspital St. Gallen, St. Gallen, Switzerland
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295
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Liao D, Chen W, Tan CY, Wong JX, Chan PS, Tan LW, Foo R, Jiang J. Upregulation of Yy1 Suppresses Dilated Cardiomyopathy caused by Ttn insufficiency. Sci Rep 2019; 9:16330. [PMID: 31705051 PMCID: PMC6841687 DOI: 10.1038/s41598-019-52796-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Accepted: 10/21/2019] [Indexed: 12/31/2022] Open
Abstract
Truncating variants in TTN (TTNtv), coding for the largest structural protein in the sarcomere, contribute to the largest portion of familial and ambulatory dilated cardiomyopathy (DCM). TTN haploinsufficiency caused by TTNtv is suggested as the disease mechanism. However, it is unclear whether TTN insufficiency causes DCM. Moreover, it is unknown whether modulation of downstream pathways serves as a therapeutic strategy for DCM caused by TTN insufficiency. Here, we show that reduction of cardiac Ttn expression by adeno-associated virus mediated shRNA (Ttn shRNA) generated DCM in mouse, demonstrating impaired cardiac performance, enlarged left ventricle (LV) and reduced LV wall thickness. A screen of 10 dysregulated and selected genes identified that Yin Yang 1 (Yy1) significantly suppressed DCM caused by Ttn shRNA. Gene profiling by RNAseq showed Yy1 modulated cell growth related genes. Ttn insufficiency activated cardiomyocyte cell cycle reentry by upregulating of Ccnd1 and Ccnd2. Cardiomyocytes activated by Ttn insufficiency did not advance to S phase by EdU incorporation assay. Yy1 promoted cardiomyocyte cell cycle by further enhancing Ccnd1 and Ccnd2 and increasing DNA replication without undergoing cell division. Importantly, upregulation of Ccnd1 and Ccnd2 suppressed DCM caused by Ttn insufficiency. Our findings demonstrate that DCM caused by Ttn insufficiency can be treated by therapeutically promoting cardiac cell cycle.
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Affiliation(s)
- Dan Liao
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore.,Cardiovascular Research Institute, National University Health System, Centre for Translational Medicine, Singapore, 117599, Singapore
| | - Weiming Chen
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore.,Cardiovascular Research Institute, National University Health System, Centre for Translational Medicine, Singapore, 117599, Singapore
| | - Chia Yee Tan
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore.,Cardiovascular Research Institute, National University Health System, Centre for Translational Medicine, Singapore, 117599, Singapore
| | - Jing Xuan Wong
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore.,Cardiovascular Research Institute, National University Health System, Centre for Translational Medicine, Singapore, 117599, Singapore
| | - Pui Shi Chan
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore.,Cardiovascular Research Institute, National University Health System, Centre for Translational Medicine, Singapore, 117599, Singapore
| | - Lek Wen Tan
- Genome Institute of Singapore, A*STAR, Singapore, 138672, Singapore
| | - Roger Foo
- Cardiovascular Research Institute, National University Health System, Centre for Translational Medicine, Singapore, 117599, Singapore.,Genome Institute of Singapore, A*STAR, Singapore, 138672, Singapore
| | - Jianming Jiang
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore. .,Cardiovascular Research Institute, National University Health System, Centre for Translational Medicine, Singapore, 117599, Singapore.
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296
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Imanaka-Yoshida K. Inflammation in myocardial disease: From myocarditis to dilated cardiomyopathy. Pathol Int 2019; 70:1-11. [PMID: 31691489 DOI: 10.1111/pin.12868] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Accepted: 10/02/2019] [Indexed: 12/27/2022]
Abstract
Dilated cardiomyopathy (DCM) is a heterogeneous group of myocardial diseases clinically defined by the presence of left ventricular dilatation and contractile dysfunction. Among various causes of DCM, a progression from viral myocarditis to DCM has long been hypothesized. Supporting this possibility, studies by endomyocardial biopsy, the only method to obtain a definite diagnosis of myocarditis at present, have provided evidence of inflammation in the myocardium in DCM patients. A number of experimental studies have elucidated a cell-mediated autoimmune mechanism triggered by viral infection in the progression of myocarditis to DCM. In addition, the important role of inflammation in the pathogenesis of heart failure has been recognized, and many terms including myocarditis, inflammatory cardiomyopathy, and inflammatory DCM have been used for myocardial diseases associated with inflammation. This review discusses the pathophysiology of inflammation in the myocardium, and refers to diagnosis and treatment based on these concepts.
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Affiliation(s)
- Kyoko Imanaka-Yoshida
- Department of Pathology and Matrix Biology, Mie University Graduate School of Medicine, Mie, Japan.,Mie University Research Center for Matrix Biology, Mie, Japan
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297
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Bozkurt S. Mathematical modeling of cardiac function to evaluate clinical cases in adults and children. PLoS One 2019; 14:e0224663. [PMID: 31671136 PMCID: PMC6822734 DOI: 10.1371/journal.pone.0224663] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Accepted: 10/18/2019] [Indexed: 11/18/2022] Open
Abstract
Time-varying elastance models can simulate only the pressure and volume signals in the heart chambers while the diagnosis of clinical cases and evaluation of different treatment techniques require more information. In this study, an extended model utilizing the geometric dimensions of the heart chambers was developed to describe the cardiac function. The new cardiac model was evaluated by simulating a healthy and dilated cardiomyopathy (DCM) condition for adults and children. The left ventricular ejection fraction, end-diastolic volume, end-diastolic diameter and diastolic sphericity index were 53.60%, 125 mL, 5.08 cm and 1.82 in the healthy adult cardiovascular system model and 23.70%, 173 mL, 6.60 cm and 1.40 in the DCM adult cardiovascular system model. In the healthy child cardiovascular system model, the left ventricular ejection fraction, end-diastolic volume, end-diastolic diameter and diastolic sphericity index were 59.70%, 92 mL, 4.10 cm and 2.26 respectively and 30.70%, 125 mL, 4.94 cm and 1.87 in the DCM child cardiovascular system model. The developed cardiovascular system model simulates the hemodynamic variables and clinical diagnostic indicators within the physiological range for healthy and DCM conditions proving the feasibility of this new model to evaluate clinical cases in adults and children.
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Affiliation(s)
- Selim Bozkurt
- Institute of Cardiovascular Science, University College London, London, United Kingdom
- * E-mail:
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298
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Liu L, Shi X, Yue P, Zheng X, Hua Y, Zhou K, Li Y. Is genomic screening necessary for fetuses who suffer moderate to severe tricuspid regurgitation?: A case report. Medicine (Baltimore) 2019; 98:e17771. [PMID: 31770195 PMCID: PMC6890352 DOI: 10.1097/md.0000000000017771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
RATIONALE Tricuspid regurgitation (TR) is a frequent finding during echocardiography screening in fetal or neonatal life, which reveals a weak association between TR and cardiac malformation. Except for structural abnormalities, dilated cardiomyopathy (DCM) ranks as the top reason for early child morbidity and mortality among all kinds of cardiomyopathy. In the early fetal stage, cardiac abnormalities detected by early fetal genetic testing followed by abnormalities on ultrasound would provide more valuable information for parents and physicians to make a better therapeutic schedule. PATIENT CONCERNS A case of severe TR was found via the fetal ultrasound screening. After birth, this child suffered severe heart dysfunction, and echocardiography confirmed a DCM phenotype within a very short time. DIAGNOSIS AND INTERVENTION A 40-year-old female received routine fetal echocardiographic screening, which demonstrated that the fetus presented severe TR. Six months after birth, the baby experienced severe heart failure, as the EF dropped to 22% with an extremely large LV chamber. The genomic sequence had been determined, and 3 pathogenic gene mutations located in 2 genes, cardiac troponin T (TNNT2) c.548G>A, desmoplakin (DSP) c.3146C>T, and DSP c.5213G>A, were identified. Finally, the patient was diagnosed with DCM. This child received digoxin, hydrochlorothiazide, spironolactone diuresis, captopril, and L-carnitine, and the symptoms of heart failure had been controlled as the patient waited for heart transplantation. OUTCOMES During the follow-up, the patient still suffered from poor heart function and an enlarged left ventricle. Concomitantly, the parents placed her on a waiting list for heart transplantation. LESSONS Fetal TR is a common phenomenon, and many studies have indicated that isolated TR is not an appropriate predictor of chromosomal abnormalities or congenital heart defects. However, according to this case, it is urgent to recommend that the mother should take advantage of free fetal DNA analysis in a maternal blood sample to obtain further molecular evidence once fetal echocardiography reveals moderate to severe TR with any maternal high-risk factors for birth defects.
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Affiliation(s)
- Lei Liu
- Department of Pediatrics, West China Second University Hospital, Sichuan University
- Ministry of Education Key Laboratory of Women and Children's Diseases and Birth Defects, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Xiaoqing Shi
- Department of Pediatrics, West China Second University Hospital, Sichuan University
- Ministry of Education Key Laboratory of Women and Children's Diseases and Birth Defects, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Peng Yue
- Department of Pediatrics, West China Second University Hospital, Sichuan University
- Ministry of Education Key Laboratory of Women and Children's Diseases and Birth Defects, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Xiaolan Zheng
- Department of Pediatrics, West China Second University Hospital, Sichuan University
- Ministry of Education Key Laboratory of Women and Children's Diseases and Birth Defects, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Yimin Hua
- Department of Pediatrics, West China Second University Hospital, Sichuan University
- Ministry of Education Key Laboratory of Women and Children's Diseases and Birth Defects, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Kaiyu Zhou
- Department of Pediatrics, West China Second University Hospital, Sichuan University
- Ministry of Education Key Laboratory of Women and Children's Diseases and Birth Defects, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Yifei Li
- Department of Pediatrics, West China Second University Hospital, Sichuan University
- Ministry of Education Key Laboratory of Women and Children's Diseases and Birth Defects, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
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299
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Nagai-Okatani C, Nishigori M, Sato T, Minamino N, Kaji H, Kuno A. Wisteria floribunda agglutinin staining for the quantitative assessment of cardiac fibrogenic activity in a mouse model of dilated cardiomyopathy. J Transl Med 2019; 99:1749-1765. [PMID: 31253865 DOI: 10.1038/s41374-019-0279-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Revised: 04/24/2019] [Accepted: 05/10/2019] [Indexed: 12/17/2022] Open
Abstract
Cardiac fibrosis is a typical phenomenon in failing hearts for most cardiac diseases, including dilated cardiomyopathy (DCM), and its specific detection and quantification are crucial for the analysis of cardiac remodeling. Since cardiac fibrosis is characterized by extensive remodeling of the myocardial extracellular matrix (ECM), in which glycoproteins are the major components, we assumed that fibrosis-related alterations in the cardiac glycome and glycoproteome would be suitable targets for the detection of cardiac fibrosis. Here, we compared protein glycosylation between heart tissues of normal and DCM model mice by laser microdissection-assisted lectin microarray. Among 45 lectins, Wisteria floribunda agglutinin (WFA) was selected as the most suitable lectin for staining cardiac fibrotic tissues. Although the extent of WFA staining was highly correlated (r > 0.98) with that of picrosirius red staining, a common collagen staining method, WFA did not bind to collagen fibers. Further histochemical analysis with N-glycosidase revealed that WFA staining of fibrotic tissues was attributable to the binding of WFA to N-glycoproteins. Using a mass spectrometry-based approach, we identified WFA-binding N-glycoproteins expressed in DCM hearts, many of which were fibrogenesis-related ECM proteins, as expected. In addition, the identified glycoproteins carrying WFA-binding N-glycans were detected only in DCM hearts, suggesting their cooperative glycosylation alterations with disease progression. Among these WFA-binding ECM N-glycoproteins, co-localization of the collagen α6(VI) chain protein and WFA staining in cardiac tissue sections was confirmed with a double-staining analysis. Collectively, these results indicate that WFA staining is more suitable for the quantitative assessment of cardiac fibrogenic activity than current collagen staining methods. Furthermore, given that plasma WFA-binding glycoprotein levels were significantly correlated with the echocardiographic parameters for left ventricular remodeling, cardiac WFA-binding glycoproteins are candidate circulating glyco-biomarkers for the quantification and monitoring of cardiac fibrogenesis.
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Affiliation(s)
- Chiaki Nagai-Okatani
- Glycoscience and Glycotechnology Research Group, Biotechnology Research Institute for Drug Discovery, National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki, Japan.
| | - Mitsuhiro Nishigori
- Omics Research Center, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan
| | - Takashi Sato
- Glycoscience and Glycotechnology Research Group, Biotechnology Research Institute for Drug Discovery, National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki, Japan
| | - Naoto Minamino
- Omics Research Center, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan
| | - Hiroyuki Kaji
- Glycoscience and Glycotechnology Research Group, Biotechnology Research Institute for Drug Discovery, National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki, Japan
| | - Atsushi Kuno
- Glycoscience and Glycotechnology Research Group, Biotechnology Research Institute for Drug Discovery, National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki, Japan.
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300
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Lindgren MP, PirouziFard M, Smith JG, Sundquist J, Sundquist K, Zöller B. A Swedish Nationwide Adoption Study of the Heritability of Heart Failure. JAMA Cardiol 2019; 3:703-710. [PMID: 29998296 DOI: 10.1001/jamacardio.2018.1919] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Importance Heart failure (HF) aggregates in families, but the heritability of HF has not been determined. Discerning the genetic and environmental contributions to HF risk is important to further helping to identify individuals at risk. Adoption studies may establish the genetic contribution to HF. Objective This nationwide adoption study aimed to determine the heritability of HF. Design, Setting, and Participants This case-control study and cohort study design used logistic regression for calculating risks of HF in adoptees. Adoptees who were born in Sweden between 1942 and 1990 were linked to their adoptive parents and biological parents. The Swedish Multi-Generation Register was linked to the Swedish Patient Register for information on hospital inpatient and outpatient admissions and to the Swedish Cause of Death Register for the period 1964 through 2015. Heritability (h2 with a standard error) for HF was determined both with Falconer regression and with tetrachoric correlation. Data analysis was completed from July 2017 to April 2018. Exposures Heart failure in biological parents and/or adoptive parents. Main Outcomes and Measures Heritability; risk of HF, expressed as odds ratios. Results A total of 21 643 adoptees were included (of whom 10 626 [49.1%] were female), as well as 35 016 adoptive parents (14 872 [42.5%] female) and 43 286 biological parents (21 643 [50.0%] female). There were 194 cases of HF in adoptees, 3972 cases of HF in adoptive parents, and 3657 cases of HF in biological parents. The cohort study odds ratio (OR) for heart failure was 1.45 in adoptees (95% CI, 1.04-2.03) for biological parents with HF, compared with those without an affected biological parent. If cardiomyopathies were excluded, this OR was 1.58 (95% CI, 1.03-2.42). The corresponding OR associated with an affected adoptive parent were nonsignificant, both with cardiomyopathies included (OR, 0.83 [95% CI, 0.57-1.20]) and with cardiomyopathies excluded (OR, 0.79 [95% CI, 0.49-1.29]). The heritability of HF per Falconer regression (h2) was 26% (SE, 14%). With exclusion of cardiomyopathies the heritability using Falconer regression was 34% (SE, 18%). Conclusions and Relevance Heart failure in a biological parent is an HF risk factor that is worth clinical consideration. The increased heritability of HF suggests that genetic factors are important in HF pathogenesis.
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Affiliation(s)
- Magnus P Lindgren
- Center for Primary Health Care Research, Department of Clinical Sciences, Lund University and Region Skåne, Malmö, Sweden
| | - MirNabi PirouziFard
- Center for Primary Health Care Research, Department of Clinical Sciences, Lund University and Region Skåne, Malmö, Sweden
| | - J Gustav Smith
- Department of Cardiology, Clinical Sciences, Lund University and Skåne University Hospital, Lund, Sweden
| | - Jan Sundquist
- Center for Primary Health Care Research, Department of Clinical Sciences, Lund University and Region Skåne, Malmö, Sweden
| | - Kristina Sundquist
- Center for Primary Health Care Research, Department of Clinical Sciences, Lund University and Region Skåne, Malmö, Sweden
| | - Bengt Zöller
- Center for Primary Health Care Research, Department of Clinical Sciences, Lund University and Region Skåne, Malmö, Sweden
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