期刊
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
卷 19, 期 8, 页码 -出版社
MDPI
DOI: 10.3390/ijms19082234
关键词
human heart muscle contractility; dilated cardiomyopathy; hypertrophic cardiomyopathy; troponin phosphorylation; cardiomyopathy mutations; Ca2+-sensitivity; length dependent activation
资金
- British Heart Foundation [PG/17/5/32705]
- Magdi Yacoub Institute [1082750]
About half of hypertrophic and dilated cardiomyopathies cases have been recognized as genetic diseases with mutations in sarcomeric proteins. The sarcomeric proteins are involved in cardiomyocyte contractility and its regulation, and play a structural role. Mutations in non-sarcomeric proteins may induce changes in cell signaling pathways that modify contractile response of heart muscle. These facts strongly suggest that contractile dysfunction plays a central role in initiation and progression of cardiomyopathies. In fact, abnormalities in contractile mechanics of myofibrils have been discovered. However, it has not been revealed how these mutations increase risk for cardiomyopathy and cause the disease. Much research has been done and still much is being done to understand how the mechanism works. Here, we review the facts of cardiac myofilament contractility in patients with cardiomyopathy and heart failure.
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