Cited by 168Cardiomyopathy and Myosin StudiesCardiac electrophysiology and arrhythmiasCardiovascular Effects of Exercise

Advances in the Genetic Basis and Pathogenesis of Sarcomere Cardiomyopathies

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Yotti, Raquel, Seidman, Christine E., Seidman, Jonathan G.·2019·Annual Review of Genomics and Human Genetics

Abstract

Hypertrophic cardiomyopathy (HCM) and dilated cardiomyopathy (DCM) are common heart muscle disorders that are caused by pathogenic variants in sarcomere protein genes. HCM is characterized by unexplained cardiac hypertrophy (increased chamber wall thickness) that is accompanied by enhanced cardiac contractility and impaired relaxation. DCM is defined as increased ventricular chamber volume with contractile impairment. In this review, we discuss recent analyses that provide new insights into the molecular mechanisms that cause these conditions. HCM studies have uncovered the critical importance of conformational changes that occur during relaxation and enable energy conservation, which are frequently disturbed by HCM mutations. DCM studies have demonstrated the considerable prevalence of truncating variants in titin and have discerned that these variants reduce contractile function by impairing sarcomerogenesis. These new pathophysiologic mechanisms open exciting opportunities to identify new pharmacological targets and develop future cardioprotective strategies.

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  1. Lopez-Ayala JM, Boven L, van den Wijngaard A, Penafiel-Verdu P, van Tintelen JP, Gimeno JR. 2015. Phospholamban p.Arg14del mutation in a Spanish family with arrhythmogenic cardiomyopathy: evi- dence for a European founder mutation. Rev. Esp. Cardiol. (Engl. Ed.) 68:346-49

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Authors
Yotti, R., Seidman, C. E., & Seidman, J. G.
Affiliations
  • Instituto de Salud Carlos III (ES)
  • Brigham and Women's Hospital (US)
  • Harvard University (US)
Venue
Annual Review of Genomics and Human Genetics
Published
2019-08-31
Volume
20
Issue
1
Pages
129-153
ISSN
  • 1527-8204 (ISSN-L)
  • 1545-293X
OpenAlex
W2936587264
Cited by
168
References
154
Citations by year
2026: 10 · 2025: 17 · 2024: 35 · 2023: 27 · 2022: 24 · 2021: 33 · 2020: 18 · 2019: 4
FWCI
3.57
Type
journal article
Language
en
Open access
Locations
  • Annual Review of Genomics and Human Genetics (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Howard Hughes Medical Institute
  • Fondation Leducq
  • Centro de Investigación Biomédica en Red Enfermedades Cardiovasculares
  • National Institutes of Health
  • Instituto de Salud Carlos III (PI15/02229)
  • National Heart, Lung, and Blood Institute (R01HL084553)
Topics
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiomyopathy and Myosin Studies
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiac electrophysiology and arrhythmias
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiovascular Effects of Exercise
Keywords
hypertrophic cardiomyopathy, dilated cardiomyopathy, pathogenic variants, myocardial relaxation, sarcomerogenesis, cardiac contractility, energy conservation, therapeutic target, cardioprotection
MeSH terms
Myosin Binding Protein C, Benzylamines, Cardiomyopathy, Dilated, Cardiomyopathy, Hypertrophic, Cardiotonic Agents, Carrier Proteins, Humans, Mutation, Myocardial Contraction, Myocardium, Sarcomeres, Uracil, Urea, Gene Expression, RNA-Binding Proteins, Myosin Heavy Chains, Troponin T, Cardiac Myosins, Connectin

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