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J Mol Med (Berl). 1998 Oct;76(11):725-46.

Cellular mechanisms of cardiac hypertrophy.

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  • 1National Heart and Lung Institute Division (Cardiac Medicine), Imperial College School of Medicine, London, UK.

Abstract

Hypertrophy of myocytes in the heart ventricles is an important adaptation that in vivo occurs in response to a requirement for increased contractile power. It involves changes at the level of gene transcription, stimulation of the rate of protein synthesis (translation), and increased assembly of myofibrils. There is mounting evidence of the involvement of reversible protein phosphorylation and dephosphorylation in most of these processes. Protein kinase C, mitogen-activated protein kinases, and transcription factors have been implicated in the modulation of the transcriptional changes. Activation of translation may also be mediated through protein phosphorylation/dephosphorylation, although this has not been clearly established in the heart. Here we provide a critical overview of the signalling pathways involved in the hypertrophic response and provide a scheme to account for many of its features.

PMID:
9826118
[PubMed - indexed for MEDLINE]
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