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Landim-Vieira M, Kahmini AR, Engel M, Cannon EN, Amat-Alarcon N, Judge DP, Pinto JR, Chelko SP. Efficacy and Safety of Angiotensin Receptor Blockers in a Pre-Clinical Model of Arrhythmogenic Cardiomyopathy. Int J Mol Sci 2022; 23:13909. [PMID: 36430389 PMCID: PMC9697954 DOI: 10.3390/ijms232213909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 11/08/2022] [Accepted: 11/09/2022] [Indexed: 11/16/2022] Open
Abstract
Arrhythmogenic Cardiomyopathy (ACM) is a familial heart disease, characterized by contractile dysfunction, ventricular arrhythmias (VAs), and the risk of sudden cardiac death. Currently, implantable cardioverter defibrillators and antiarrhythmics are the mainstays in ACM therapeutics. Angiotensin receptor blockers (ARBs) have been highlighted in the treatment of heart diseases, including ACM. Yet, recent research has additionally implicated ARBs in the genesis of VAs and myocardial lipolysis via the peroxisome proliferator-activated receptor gamma (PPARγ) pathway. The latter is of particular interest, as fibrofatty infiltration is a pathological hallmark in ACM. Here, we tested two ARBs, Valsartan and Telmisartan, and the PPAR agonist, Rosiglitazone, in an animal model of ACM, homozygous Desmoglein-2 mutant mice (Dsg2mut/mut). Cardiac function, premature ventricular contractions (PVCs), fibrofatty scars, PPARα/γ protein levels, and PPAR-mediated mRNA transcripts were assessed. Of note, not a single mouse treated with Rosiglitazone made it to the study endpoint (i.e., 100% mortality: n = 5/5). Telmisartan-treated Dsg2mut/mut mice displayed the preservation of contractile function (percent ejection fraction [%EF]; 74.8 ± 6.8%EF) compared to Vehicle- (42.5 ± 5.6%EF) and Valsartan-treated (63.1 ± 4.4%EF) mice. However, Telmisartan-treated Dsg2mut/mut mice showed increased cardiac wall motion abnormalities, augmented %PVCs, electrocardiographic repolarization/depolarization abnormalities, larger fibrotic lesions, and increased expression of PPARy-regulated gene transcripts compared to their Dsg2mut/mut counterparts. Alternatively, Valsartan-treated Dsg2mut/mut mice harbored fewer myocardial scars, reduced %PVC, and increased Wnt-mediated transcripts. Considering our findings, caution should be taken by physicians when prescribing medications that may increase PPARy signaling in patients with ACM.
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Affiliation(s)
- Maicon Landim-Vieira
- Department of Biomedical Sciences, College of Medicine, Florida State University, Tallahassee, FL 32306, USA
| | - Aida Rahimi Kahmini
- Department of Nutrition and Integrative Physiology, Florida State University, Tallahassee, FL 32306, USA
| | - Morgan Engel
- Department of Biomedical Sciences, College of Medicine, Florida State University, Tallahassee, FL 32306, USA
| | - Elisa Nicole Cannon
- Department of Biomedical Sciences, College of Medicine, Florida State University, Tallahassee, FL 32306, USA
| | - Nuria Amat-Alarcon
- Department of Medicine, School of Medicine, Johns Hopkins University, Baltimore, MD 21215, USA
| | - Daniel P. Judge
- Department of Medicine, Medical University of South Carolina, Charleston, SC 29425, USA
| | - José Renato Pinto
- Department of Biomedical Sciences, College of Medicine, Florida State University, Tallahassee, FL 32306, USA
| | - Stephen P. Chelko
- Department of Biomedical Sciences, College of Medicine, Florida State University, Tallahassee, FL 32306, USA
- Department of Medicine, School of Medicine, Johns Hopkins University, Baltimore, MD 21215, USA
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2
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Chelko SP, Asimaki A, Lowenthal J, Bueno-Beti C, Bedja D, Scalco A, Amat-Alarcon N, Andersen P, Judge DP, Tung L, Saffitz JE. Therapeutic Modulation of the Immune Response in Arrhythmogenic Cardiomyopathy. Circulation 2019; 140:1491-1505. [PMID: 31533459 DOI: 10.1161/circulationaha.119.040676] [Citation(s) in RCA: 110] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND Inflammation is a prominent feature of arrhythmogenic cardiomyopathy (ACM), but whether it contributes to the disease phenotype is not known. METHODS To define the role of inflammation in the pathogenesis of ACM, we characterized nuclear factor-κB signaling in ACM models in vitro and in vivo and in cardiac myocytes from patient induced pluripotent stem cells. RESULTS Activation of nuclear factor-κB signaling, indicated by increased expression and nuclear accumulation of phospho-RelA/p65, occurred in both an in vitro model of ACM (expression of JUP2157del2 in neonatal rat ventricular myocytes) and a robust murine model of ACM (homozygous knock-in of mutant desmoglein-2 [Dsg2mut/mut]) that recapitulates the cardiac manifestations seen in patients with ACM. Bay 11-7082, a small-molecule inhibitor of nuclear factor-κB signaling, prevented the development of ACM disease features in vitro (abnormal redistribution of intercalated disk proteins, myocyte apoptosis, release of inflammatory cytokines) and in vivo (myocardial necrosis and fibrosis, left ventricular contractile dysfunction, electrocardiographic abnormalities). Hearts of Dsg2mut/mut mice expressed markedly increased levels of inflammatory cytokines and chemotactic molecules that were attenuated by Bay 11-7082. Salutary effects of Bay 11-7082 correlated with the extent to which production of selected cytokines had been blocked. Nuclear factor-κB signaling was also activated in cardiac myocytes derived from a patient with ACM. These cells produced and secreted abundant inflammatory cytokines under basal conditions, and this was also greatly reduced by Bay 11-7082. CONCLUSIONS Inflammatory signaling is activated in ACM and drives key features of the disease. Targeting inflammatory pathways may be an effective new mechanism-based therapy for ACM.
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Affiliation(s)
- Stephen P Chelko
- Departments of Medicine (S.P.C., D.B., N.A.-A., P.A.), Johns Hopkins School of Medicine, Baltimore, MD
| | | | - Justin Lowenthal
- Biomedical Engineering (J.L., L.T.), Johns Hopkins School of Medicine, Baltimore, MD
| | | | - Djahida Bedja
- Departments of Medicine (S.P.C., D.B., N.A.-A., P.A.), Johns Hopkins School of Medicine, Baltimore, MD
| | - Arianna Scalco
- Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padova, Italy (A.S.)
| | - Nuria Amat-Alarcon
- Departments of Medicine (S.P.C., D.B., N.A.-A., P.A.), Johns Hopkins School of Medicine, Baltimore, MD
| | - Peter Andersen
- Departments of Medicine (S.P.C., D.B., N.A.-A., P.A.), Johns Hopkins School of Medicine, Baltimore, MD
| | - Daniel P Judge
- Department of Medicine, Medical University of South Carolina, Charleston (D.P.J.)
| | - Leslie Tung
- Biomedical Engineering (J.L., L.T.), Johns Hopkins School of Medicine, Baltimore, MD
| | - Jeffrey E Saffitz
- Department of Pathology, Beth Israel Deaconess Medical Center, Boston, MA (J.E.S.)
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3
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Te Riele ASJM, Agullo-Pascual E, James CA, Leo-Macias A, Cerrone M, Zhang M, Lin X, Lin B, Sobreira NL, Amat-Alarcon N, Marsman RF, Murray B, Tichnell C, van der Heijden JF, Dooijes D, van Veen TAB, Tandri H, Fowler SJ, Hauer RNW, Tomaselli G, van den Berg MP, Taylor MRG, Brun F, Sinagra G, Wilde AAM, Mestroni L, Bezzina CR, Calkins H, Peter van Tintelen J, Bu L, Delmar M, Judge DP. Multilevel analyses of SCN5A mutations in arrhythmogenic right ventricular dysplasia/cardiomyopathy suggest non-canonical mechanisms for disease pathogenesis. Cardiovasc Res 2017; 113:102-111. [PMID: 28069705 DOI: 10.1093/cvr/cvw234] [Citation(s) in RCA: 126] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Revised: 08/21/2016] [Accepted: 11/14/2016] [Indexed: 12/21/2022] Open
Abstract
AIMS Arrhythmogenic Right Ventricular Dysplasia/Cardiomyopathy (ARVD/C) is often associated with desmosomal mutations. Recent studies suggest an interaction between the desmosome and sodium channel protein Nav1.5. We aimed to determine the prevalence and biophysical properties of mutations in SCN5A (the gene encoding Nav1.5) in ARVD/C. METHODS AND RESULTS We performed whole-exome sequencing in six ARVD/C patients (33% male, 38.2 ± 12.1 years) without a desmosomal mutation. We found a rare missense variant (p.Arg1898His; R1898H) in SCN5A in one patient. We generated induced pluripotent stem cell-derived cardiomyocytes (hIPSC-CMs) from the patient's peripheral blood mononuclear cells. The variant was then corrected (R1898R) using Clustered Regularly Interspaced Short Palindromic Repeats/Cas9 technology, allowing us to study the impact of the R1898H substitution in the same cellular background. Whole-cell patch clamping revealed a 36% reduction in peak sodium current (P = 0.002); super-resolution fluorescence microscopy showed reduced abundance of NaV1.5 (P = 0.005) and N-Cadherin (P = 0.026) clusters at the intercalated disc. Subsequently, we sequenced SCN5A in an additional 281 ARVD/C patients (60% male, 34.8 ± 13.7 years, 52% desmosomal mutation-carriers). Five (1.8%) subjects harboured a putatively pathogenic SCN5A variant (p.Tyr416Cys, p.Leu729del, p.Arg1623Ter, p.Ser1787Asn, and p.Val2016Met). SCN5A variants were associated with prolonged QRS duration (119 ± 15 vs. 94 ± 14 ms, P < 0.01) and all SCN5A variant carriers had major structural abnormalities on cardiac imaging. CONCLUSIONS Almost 2% of ARVD/C patients harbour rare SCN5A variants. For one of these variants, we demonstrated reduced sodium current, Nav1.5 and N-Cadherin clusters at junctional sites. This suggests that Nav1.5 is in a functional complex with adhesion molecules, and reveals potential non-canonical mechanisms by which Nav1.5 dysfunction causes cardiomyopathy.
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Affiliation(s)
- Anneline S J M Te Riele
- Department of Medicine, Division of Cardiology, Johns Hopkins University School of Medicine, 1800 Orleans Street, Baltimore, MD, USA.,Division of Cardiology, University Medical Center Utrecht, Heidelberglaan 100, Utrecht, the Netherlands.,Netherlands Heart Institute, Moreelsepark 1, Utrecht, the Netherlands
| | - Esperanza Agullo-Pascual
- Leon H. Charney Division of Cardiology, New York University School of Medicine, 550 First Avenue, New York, NY, USA
| | - Cynthia A James
- Department of Medicine, Division of Cardiology, Johns Hopkins University School of Medicine, 1800 Orleans Street, Baltimore, MD, USA
| | - Alejandra Leo-Macias
- Leon H. Charney Division of Cardiology, New York University School of Medicine, 550 First Avenue, New York, NY, USA
| | - Marina Cerrone
- Leon H. Charney Division of Cardiology, New York University School of Medicine, 550 First Avenue, New York, NY, USA
| | - Mingliang Zhang
- Leon H. Charney Division of Cardiology, New York University School of Medicine, 550 First Avenue, New York, NY, USA
| | - Xianming Lin
- Leon H. Charney Division of Cardiology, New York University School of Medicine, 550 First Avenue, New York, NY, USA
| | - Bin Lin
- Leon H. Charney Division of Cardiology, New York University School of Medicine, 550 First Avenue, New York, NY, USA
| | - Nara L Sobreira
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, 720 Rutland Avenue, Baltimore, MD, USA
| | - Nuria Amat-Alarcon
- Department of Medicine, Division of Cardiology, Johns Hopkins University School of Medicine, 1800 Orleans Street, Baltimore, MD, USA
| | - Roos F Marsman
- Heart Centre, Department of Clinical and Experimental Cardiology, Academic Medical Center, Meibergdreef 9, Amsterdam, the Netherlands
| | - Brittney Murray
- Department of Medicine, Division of Cardiology, Johns Hopkins University School of Medicine, 1800 Orleans Street, Baltimore, MD, USA
| | - Crystal Tichnell
- Department of Medicine, Division of Cardiology, Johns Hopkins University School of Medicine, 1800 Orleans Street, Baltimore, MD, USA
| | - Jeroen F van der Heijden
- Division of Cardiology, University Medical Center Utrecht, Heidelberglaan 100, Utrecht, the Netherlands
| | - Dennis Dooijes
- Department of Medical Genetics, University Medical Center Utrecht, Heidelberglaan 100, Utrecht, the Netherlands
| | - Toon A B van Veen
- Department of Medical Physiology, Division of Heart and Lungs, University Medical Center Utrecht, Yalelaan 50, Utrecht, the Netherlands
| | - Harikrishna Tandri
- Department of Medicine, Division of Cardiology, Johns Hopkins University School of Medicine, 1800 Orleans Street, Baltimore, MD, USA
| | - Steven J Fowler
- Leon H. Charney Division of Cardiology, New York University School of Medicine, 550 First Avenue, New York, NY, USA
| | - Richard N W Hauer
- Division of Cardiology, University Medical Center Utrecht, Heidelberglaan 100, Utrecht, the Netherlands.,Netherlands Heart Institute, Moreelsepark 1, Utrecht, the Netherlands
| | - Gordon Tomaselli
- Department of Medicine, Division of Cardiology, Johns Hopkins University School of Medicine, 1800 Orleans Street, Baltimore, MD, USA
| | - Maarten P van den Berg
- Department of Cardiology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, Groningen, the Netherlands
| | - Matthew R G Taylor
- Cardiovascular Institute and Adult Medical Genetics, University of Colorado Denver, 12605 E 16th Avenue, Aurora, CO, USA
| | - Francesca Brun
- Cardiovascular Department, Ospedali Riuniti and University of Trieste, Via Farneto 3, Trieste, Italy
| | - Gianfranco Sinagra
- Cardiovascular Department, Ospedali Riuniti and University of Trieste, Via Farneto 3, Trieste, Italy
| | - Arthur A M Wilde
- Heart Centre, Department of Clinical and Experimental Cardiology, Academic Medical Center, Meibergdreef 9, Amsterdam, the Netherlands
| | - Luisa Mestroni
- Cardiovascular Institute and Adult Medical Genetics, University of Colorado Denver, 12605 E 16th Avenue, Aurora, CO, USA
| | - Connie R Bezzina
- Heart Centre, Department of Clinical and Experimental Cardiology, Academic Medical Center, Meibergdreef 9, Amsterdam, the Netherlands
| | - Hugh Calkins
- Department of Medicine, Division of Cardiology, Johns Hopkins University School of Medicine, 1800 Orleans Street, Baltimore, MD, USA
| | - J Peter van Tintelen
- Department of Cardiology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, Groningen, the Netherlands.,Department of Clinical Genetics, Academic Medical Center Amsterdam, University of Amsterdam, Meibergdreef 9, Amsterdam, the Netherlands.,Department of Genetics, University of Groningen, University Medical Center Groningen, Hanzeplein 1, Groningen, the Netherlands
| | - Lei Bu
- Leon H. Charney Division of Cardiology, New York University School of Medicine, 550 First Avenue, New York, NY, USA.,Department of Medicine, Division of Cardiology, Johns Hopkins University School of Medicine, 1800 Orleans Street, Baltimore, MD, USA
| | - Mario Delmar
- Leon H. Charney Division of Cardiology, New York University School of Medicine, 550 First Avenue, New York, NY, USA.,Department of Medicine, Division of Cardiology, Johns Hopkins University School of Medicine, 1800 Orleans Street, Baltimore, MD, USA
| | - Daniel P Judge
- Department of Medicine, Division of Cardiology, Johns Hopkins University School of Medicine, 1800 Orleans Street, Baltimore, MD, USA;
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4
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Rouf R, MacFarlane EG, Takimoto E, Chaudhary R, Nagpal V, Rainer PP, Bindman JG, Gerber EE, Bedja D, Schiefer C, Miller KL, Zhu G, Myers L, Amat-Alarcon N, Lee DI, Koitabashi N, Judge DP, Kass DA, Dietz HC. Nonmyocyte ERK1/2 signaling contributes to load-induced cardiomyopathy in Marfan mice. JCI Insight 2017; 2:91588. [PMID: 28768908 DOI: 10.1172/jci.insight.91588] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Accepted: 06/29/2017] [Indexed: 12/27/2022] Open
Abstract
Among children with the most severe presentation of Marfan syndrome (MFS), an inherited disorder of connective tissue caused by a deficiency of extracellular fibrillin-1, heart failure is the leading cause of death. Here, we show that, while MFS mice (Fbn1C1039G/+ mice) typically have normal cardiac function, pressure overload (PO) induces an acute and severe dilated cardiomyopathy in association with fibrosis and myocyte enlargement. Failing MFS hearts show high expression of TGF-β ligands, with increased TGF-β signaling in both nonmyocytes and myocytes; pathologic ERK activation is restricted to the nonmyocyte compartment. Informatively, TGF-β, angiotensin II type 1 receptor (AT1R), or ERK antagonism (with neutralizing antibody, losartan, or MEK inhibitor, respectively) prevents load-induced cardiac decompensation in MFS mice, despite persistent PO. In situ analyses revealed an unanticipated axis of activation in nonmyocytes, with AT1R-dependent ERK activation driving TGF-β ligand expression that culminates in both autocrine and paracrine overdrive of TGF-β signaling. The full compensation seen in wild-type mice exposed to mild PO correlates with enhanced deposition of extracellular fibrillin-1. Taken together, these data suggest that fibrillin-1 contributes to cardiac reserve in the face of hemodynamic stress, critically implicate nonmyocytes in disease pathogenesis, and validate ERK as a therapeutic target in MFS-related cardiac decompensation.
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Affiliation(s)
- Rosanne Rouf
- Division of Cardiology, Department of Medicine, and
| | - Elena Gallo MacFarlane
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | | | | | - Varun Nagpal
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | | | - Jay G Bindman
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Elizabeth E Gerber
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | | | | | | | | | - Loretha Myers
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | | | - Dong I Lee
- Division of Cardiology, Department of Medicine, and
| | | | | | - David A Kass
- Division of Cardiology, Department of Medicine, and
| | - Harry C Dietz
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.,Howard Hughes Medical Institute, Bethesda, Maryland, USA
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5
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Chelko SP, Asimaki A, Andersen P, Bedja D, Amat-Alarcon N, DeMazumder D, Jasti R, MacRae CA, Leber R, Kleber AG, Saffitz JE, Judge DP. Central role for GSK3β in the pathogenesis of arrhythmogenic cardiomyopathy. JCI Insight 2016; 1:85923. [PMID: 27170944 DOI: 10.1172/jci.insight.85923] [Citation(s) in RCA: 115] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Arrhythmogenic cardiomyopathy (ACM) is characterized by redistribution of junctional proteins, arrhythmias, and progressive myocardial injury. We previously reported that SB216763 (SB2), annotated as a GSK3β inhibitor, reverses disease phenotypes in a zebrafish model of ACM. Here, we show that SB2 prevents myocyte injury and cardiac dysfunction in vivo in two murine models of ACM at baseline and in response to exercise. SB2-treated mice with desmosome mutations showed improvements in ventricular ectopy and myocardial fibrosis/inflammation as compared with vehicle-treated (Veh-treated) mice. GSK3β inhibition improved left ventricle function and survival in sedentary and exercised Dsg2mut/mut mice compared with Veh-treated Dsg2mut/mut mice and normalized intercalated disc (ID) protein distribution in both mutant mice. GSK3β showed diffuse cytoplasmic localization in control myocytes but ID redistribution in ACM mice. Identical GSK3β redistribution is present in ACM patient myocardium but not in normal hearts or other cardiomyopathies. SB2 reduced total GSK3β protein levels but not phosphorylated Ser 9-GSK3β in ACM mice. Constitutively active GSK3β worsens ACM in mutant mice, while GSK3β shRNA silencing in ACM cardiomyocytes prevents abnormal ID protein distribution. These results highlight a central role for GSKβ in the complex phenotype of ACM and provide further evidence that pharmacologic GSKβ inhibition improves cardiomyopathies due to desmosome mutations.
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Affiliation(s)
- Stephen P Chelko
- Department of Medicine/Cardiology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Angeliki Asimaki
- Department of Pathology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA
| | - Peter Andersen
- Department of Medicine/Cardiology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Djahida Bedja
- Department of Medicine/Cardiology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.,Australian School of Advanced Medicine, Macquarie University, Sydney, New South Wales, Australia
| | - Nuria Amat-Alarcon
- Department of Medicine/Cardiology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Deeptankar DeMazumder
- Department of Medicine/Cardiology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Ravirasmi Jasti
- Department of Medicine/Cardiology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Calum A MacRae
- Department of Pathology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA.,Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Remo Leber
- Schiller AG, Research and Development, Baar, Switzerland
| | - Andre G Kleber
- Department of Pathology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA
| | - Jeffrey E Saffitz
- Department of Pathology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA
| | - Daniel P Judge
- Department of Medicine/Cardiology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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6
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Shenje LT, Andersen P, Halushka MK, Lui C, Fernandez L, Collin GB, Amat-Alarcon N, Meschino W, Cutz E, Chang K, Yonescu R, Batista DAS, Chen Y, Chelko S, Crosson JE, Scheel J, Vricella L, Craig BD, Marosy BA, Mohr DW, Hetrick KN, Romm JM, Scott AF, Valle D, Naggert JK, Kwon C, Doheny KF, Judge DP. Mutations in Alström protein impair terminal differentiation of cardiomyocytes. Nat Commun 2014; 5:3416. [PMID: 24595103 PMCID: PMC3992616 DOI: 10.1038/ncomms4416] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2013] [Accepted: 02/10/2014] [Indexed: 02/08/2023] Open
Abstract
Cardiomyocyte cell division and replication in mammals proceed through embryonic development and abruptly decline soon after birth. The process governing cardiomyocyte cell cycle arrest is poorly understood. Here we carry out whole exome sequencing in an infant with evidence of persistent postnatal cardiomyocyte replication to determine the genetic risk factors. We identify compound heterozygous ALMS1 mutations in the proband, and confirm their presence in her affected sibling, one copy inherited from each heterozygous parent. Next, we recognise homozygous or compound heterozygous truncating mutations in ALMS1 in four other children with high levels of postnatal cardiomyocyte proliferation. Alms1 mRNA knockdown increases multiple markers of proliferation in cardiomyocytes, the percentage of cardiomyocytes in G2/M phases, and the number of cardiomyocytes by 10% in cultured cells. Homozygous Alms1-mutant mice have increased cardiomyocyte proliferation at two weeks postnatal compared to wild-type littermates. We conclude that deficiency of Alström protein impairs postnatal cardiomyocyte cell cycle arrest.
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Affiliation(s)
- Lincoln T Shenje
- 1] Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland 21287, USA [2]
| | - Peter Andersen
- 1] Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland 21287, USA [2]
| | - Marc K Halushka
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21287, USA
| | - Cecillia Lui
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland 21287, USA
| | - Laviel Fernandez
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland 21287, USA
| | | | - Nuria Amat-Alarcon
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland 21287, USA
| | - Wendy Meschino
- North York General Hospital, Toronto, Ontario, Canada M2K 1E1
| | - Ernest Cutz
- Division of Pathology, Department of Paediatric Laboratory Medicine, The Hospital for Sick Children, Toronto, Ontario, Canada M5G 1X8
| | - Kenneth Chang
- 1] Division of Pathology, Department of Paediatric Laboratory Medicine, The Hospital for Sick Children, Toronto, Ontario, Canada M5G 1X8 [2] KK Women's and Children's Hospital and Duke-NUS Graduate Medical School, Singapore 229899, Singapore
| | - Raluca Yonescu
- 1] Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21287, USA [2] McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland 21287, USA
| | - Denise A S Batista
- 1] Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21287, USA [2] McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland 21287, USA
| | - Yan Chen
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland 21287, USA
| | - Stephen Chelko
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland 21287, USA
| | - Jane E Crosson
- Division of Cardiology, Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, Maryland 21287, USA
| | - Janet Scheel
- Division of Cardiology, Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, Maryland 21287, USA
| | - Luca Vricella
- Division of Cardiothoracic Surgery, Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland 21287, USA
| | - Brian D Craig
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland 21287, USA
| | - Beth A Marosy
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland 21287, USA
| | - David W Mohr
- 1] McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland 21287, USA [2] High Throughput Sequencing Facility, Genetic Resources Core Facility, McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland 21287, USA
| | - Kurt N Hetrick
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland 21287, USA
| | - Jane M Romm
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland 21287, USA
| | - Alan F Scott
- 1] McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland 21287, USA [2] High Throughput Sequencing Facility, Genetic Resources Core Facility, McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland 21287, USA
| | - David Valle
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland 21287, USA
| | | | - Chulan Kwon
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland 21287, USA
| | - Kimberly F Doheny
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland 21287, USA
| | - Daniel P Judge
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland 21287, USA
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7
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Murray B, Wagle R, Amat-Alarcon N, Wilkens A, Stephens P, Zackai EH, Goldmuntz E, Calkins H, Deardorff MA, Judge DP. A family with a complex clinical presentation characterized by arrhythmogenic right ventricular dysplasia/cardiomyopathy and features of branchio-oculo-facial syndrome. Am J Med Genet A 2013; 161A:371-6. [DOI: 10.1002/ajmg.a.35733] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2012] [Accepted: 10/01/2012] [Indexed: 01/07/2023]
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Tan BY, Jain R, den Haan AD, Chen Y, Dalal D, Tandri H, Amat-Alarcon N, Daly A, Tichnell C, James C, Calkins H, Judge DP. Shared desmosome gene findings in early and late onset arrhythmogenic right ventricular dysplasia/cardiomyopathy. J Cardiovasc Transl Res 2010; 3:663-73. [PMID: 20857253 DOI: 10.1007/s12265-010-9224-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2010] [Accepted: 09/02/2010] [Indexed: 01/17/2023]
Abstract
Arrhythmogenic right ventricular dysplasia/cardiomyopathy (ARVD/C) is an inherited form of cardiomyopathy with low penetrance and variable expressivity. Dominant mutations and rare polymorphisms in desmosome genes are frequently identified. We reasoned that individuals with earlier onset disease would have more frequent desmosome gene mutations and rare polymorphisms. Three groups were compared: Young with symptoms attributable to ARVD/C or a diagnosis of ARVD/C at age of 21 years or earlier, Middle with first symptoms or diagnosis age of 22-49 years, and Late with first symptoms or diagnosis at age of 50 or more years. deoxyribonucleic acid (DNA) sequence analysis was performed on five cardiac desmosome genes, and the presence of mutations and rare missense polymorphisms was compared among the three groups. In the entire Young cohort, 20 (67%) had one or more cardiac desmosome gene mutations. The prevalence of cardiac desmosome gene mutations was similar in the Middle (48%) and Late (53%) cohorts (P = 0.23). Similar numbers of individuals in each cohort had more than one desmosome gene mutation, although the numbers are too small for statistical comparisons. The prevalence of certain rare missense DNA variants was not different among the cohorts (P = 0.71), yet these rare missense alleles were more prevalent in the overall study cohort of 112 ARVD/C participants compared to 100 race-matched controls (P = 0.027). The presence of these variants did not associate with the age of onset of ARVD/C or ventricular tachycardia. These findings highlight the complex interplay of environmental and genetic factors contributing to this condition.
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Affiliation(s)
- Boon Yew Tan
- Department of Medicine/Cardiology, Johns Hopkins University School of Medicine, Rutland Avenue, Baltimore, MD 21205, USA
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den Haan AD, Tan BY, Zikusoka MN, Lladó LI, Jain R, Daly A, Tichnell C, James C, Amat-Alarcon N, Abraham T, Russell SD, Bluemke DA, Calkins H, Dalal D, Judge DP. Comprehensive desmosome mutation analysis in north americans with arrhythmogenic right ventricular dysplasia/cardiomyopathy. ACTA ACUST UNITED AC 2009; 2:428-35. [PMID: 20031617 DOI: 10.1161/circgenetics.109.858217] [Citation(s) in RCA: 178] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
BACKGROUND Arrhythmogenic right ventricular dysplasia/cardiomyopathy (ARVD/C) is an inherited disorder typically caused by mutations in components of the cardiac desmosome. The prevalence and significance of desmosome mutations among patients with ARVD/C in North America have not been described previously. We report comprehensive desmosome genetic analysis for 100 North Americans with clinically confirmed or suspected ARVD/C. METHODS AND RESULTS In 82 individuals with ARVD/C and 18 people with suspected ARVD/C, DNA sequence analysis was performed on PKP2, DSG2, DSP, DSC2, and JUP. In those with ARVD/C, 52% harbored a desmosome mutation. A majority of these mutations occurred in PKP2. Notably, 3 of the individuals studied have a mutation in more than 1 gene. Patients with a desmosome mutation were more likely to have experienced ventricular tachycardia (73% versus 44%), and they presented at a younger age (33 versus 41 years) compared with those without a desmosome mutation. Men with ARVD/C were more likely than women to carry a desmosome mutation (63% versus 38%). A mutation was identified in 5 of 18 patients (28%) with suspected ARVD. In this smaller subgroup, there were no significant phenotypic differences identified between individuals with a desmosome mutation compared with those without a mutation. CONCLUSIONS Our study shows that in 52% of North Americans with ARVD/C a mutation in one of the cardiac desmosome genes can be identified. Compared with those without a desmosome gene mutation, individuals with a desmosome gene mutation had earlier-onset ARVD/C and were more likely to have ventricular tachycardia.
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Affiliation(s)
- A Dénise den Haan
- Department of Medicine/Cardiology, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
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Awad MM, Dalal D, Cho E, Amat-Alarcon N, James C, Tichnell C, Tucker A, Russell SD, Bluemke DA, Dietz HC, Calkins H, Judge DP. DSG2 mutations contribute to arrhythmogenic right ventricular dysplasia/cardiomyopathy. Am J Hum Genet 2006; 79:136-42. [PMID: 16773573 PMCID: PMC1474134 DOI: 10.1086/504393] [Citation(s) in RCA: 176] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2006] [Accepted: 03/15/2006] [Indexed: 12/20/2022] Open
Abstract
Arrhythmogenic right ventricular dysplasia/cardiomyopathy (ARVD/C) is a disorder characterized by fibrofatty replacement of cardiac myocytes that typically manifests in the right ventricle. It is inherited as an autosomal dominant disease with reduced penetrance, although autosomal recessive forms of the disease also occur. We identified four probands with ARVD/C caused by mutations in DSG2, which encodes desmoglein-2, a component of the cardiac desmosome. No association between mutations in this gene and human disease has been reported elsewhere. One of these probands has compound-heterozygous mutations in DSG2, and the remaining three have isolated heterozygous missense mutations, each disrupting known functional components of desmoglein-2. We report that mutations in DSG2 contribute to the development of ARVD/C.
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Affiliation(s)
- Mark M Awad
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
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