Mitochondrial Mechanosensor Microdomains in Cardiovascular Disorders.
Adv Exp Med Biol
; 982: 247-264, 2017.
Article
em En
| MEDLINE
| ID: mdl-28551791
ABSTRACT
The cardiomyocytes populating the 'working myocardium' are highly organized and such organization ranges from macroscale (e.g. the geometrical rod shape) to microscale (dyad/t-tubules) domains. This meticulous level of organization is imperative for assuring the normal and physiological pump-function of the heart. In the pathological cardiac tissue, the domains-related architecture is partially lost, resulting in morphological, electrical and metabolic remodeling and promoting cardiovascular diseases including heart failure and arrhythmias. Indeed, arrhythmogenesis during heart failure is a major clinical problem. Arrhythmias have been extensively studied from an electrical etiology, but only recently, physiologists and scientists have focused their attention on cellular and subcellular mechanosensors. We and others have investigated whether the nanoscale mechanosensitive properties of cardiomyocytes from failing hearts have a bearing upon the initiation of abnormal electrical activity. This chapter highlights the recent findings in the field, especially the role of mitochondria function and alignment in failing cardiomyocytes interrogated via nanomechanical stimuli.
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Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Doenças Cardiovasculares
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Microdomínios da Membrana
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Miócitos Cardíacos
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Mecanotransdução Celular
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Mitocôndrias Cardíacas
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Contração Miocárdica
Limite:
Animals
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Humans
Idioma:
En
Revista:
Adv Exp Med Biol
Ano de publicação:
2017
Tipo de documento:
Article
País de afiliação:
Itália