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Investigating the Pathogenesis of MYH7 Mutation Gly823Glu in Familial Hypertrophic Cardiomyopathy using a Mouse Model
Published on: August 8, 2022
Identifying sarcomere gene mutations in hypertrophic cardiomyopathy: a personal history
Christine E Seidman1, J G Seidman
1Cardiovascular Division, Department of Genetics, Brigham & Women's Hospital, Boston, MA 02115, USA. CSeidman@genetics.med.harvard.edu
Insights
Genetic research has identified mutations in sarcomere protein genes as the cause of hypertrophic cardiomyopathy (HCM). This review celebrates 20 years of discovery and looks toward future strategies for preventing this heart disease.
Area of Science:
- Cardiology
- Genetics
- Molecular Biology
Background:
- Hypertrophic cardiomyopathy (HCM) is a complex heart disease with varied clinical manifestations.
- Understanding the genetic underpinnings of HCM has been a long-standing challenge in cardiology.
Purpose of the Study:
- To provide a historical perspective on the discovery of genetic causes for hypertrophic cardiomyopathy (HCM).
- To introduce a thematic review series on contemporary advances in hypertrophic heart disease research.
Main Methods:
- Review of historical clinical insights and collaborative multidisciplinary research.
- Integration of clinical diagnostics, molecular genetics, and patient data.
- Application of advanced genetic methodologies and biochemical/biophysical analyses.
Main Results:
- Identification of mutations in sarcomere protein genes as the primary cause of HCM.
- Demonstration of the crucial role of genetic factors in HCM pathogenesis.
- Significant advancements in understanding sarcomere biology and heart remodeling.
Conclusions:
- The genetic etiology of HCM has been largely elucidated through decades of research.
- Continued research holds promise for developing novel therapeutic strategies to prevent or limit HCM.
- Understanding genetic variations in contractile proteins is key to unraveling heart remodeling processes.
Abstract:
This review provides an historical and personal perspective on the discovery of genetic causes for hypertrophic cardiomyopathy (HCM). Extraordinary insights by physicians who initially detailed remarkable and varied manifestations of the disorder, collaboration among multidisciplinary teams with skills in clinical diagnostics and molecular genetics, and hard work by scores of trainees solved the etiologic riddle of HCM and unexpectedly demonstrated mutations in sarcomere protein genes as the cause of disease. In addition to celebrating 20 years of genetic research in HCM, this article serves as an introductory overview to a thematic review series that will present contemporary advances in the field of hypertrophic heart disease. Through the continued application of advances in genetic methodologies, combined with biochemical and biophysical analyses of the consequences of human mutations, fundamental knowledge about HCM and sarcomere biology has emerged. Expanding research to elucidate the mechanisms by which subtle genetic variation in contractile proteins remodel the human heart remains an exciting opportunity, one with considerable promise to provide new strategies to limit or even prevent HCM pathogenesis.
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