Journal
NATURE REVIEWS CARDIOLOGY
Volume 16, Issue 6, Pages 361-378Publisher
NATURE PORTFOLIO
DOI: 10.1038/s41569-019-0155-8
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Funding
- US National Science Foundation [1252854]
- NIH [R01 HL137755, R01 HL137100, U01 HL127564]
- US Department of Defense [PR 150090]
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The intact heart undergoes complex and multiscale remodelling processes in response to altered mechanical cues. Remodelling of the myocardium is regulated by a combination of myocyte and non-myocyte responses to mechanosensitive pathways, which can alter gene expression and therefore function in these cells. Cellular mechanotransduction and its downstream effects on gene expression are initially compensatory mechanisms during adaptations to the altered mechanical environment, but under prolonged and abnormal loading conditions, they can become maladaptive, leading to impaired function and cardiac pathologies. In this Review, we summarize mechanoregulated pathways in cardiac myocytes and fibroblasts that lead to altered gene expression and cell remodelling under physiological and pathophysiological conditions. Developments in systems modelling of the networks that regulate gene expression in response to mechanical stimuli should improve integrative understanding of their roles in vivo and help to discover new combinations of drugs and device therapies targeting mechanosignalling in heart disease.
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