Abstract
Phospholipase C (PLC) is considered to mediate the cardiomyocyte hypertrophic response to norepinephrine (NE) through activation of α 1-adrenoceptor (α 1-AR). In this review, the role of PLC isozymes in cardiac hypertrophy is highlighted and some of the mechanisms that are involved in the regulation of PLC isozyme gene expression, protein abundance, and activities are identified. The discussion is focussed to highlight the role of PLC in different experimental models of cardiac hypertrophy, transgenic mice, as well as isolated adult and neonatal cardiomyocytes with particular emphasis on α 1-AR-PLC-mediated hypertrophic signals. On the basis of the information available in the literature, it is suggested that molecular modulation of specific PLC isozymes is involved in the α 1-AR mediated response for the initiation and progression of cardiac hypertrophy. Furthermore, different molecular sites in the NE-induced signal transduction pathway are identified to serve as viable targets for the modification of this adaptive mechanism for maintaining cardiac function.
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Infrastructural support for the project was provided by the St. Boniface Hospital Research Foundation.
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Tappia, P.S., Adameova, A., Dhalla, N.S. (2013). Role of Phospholipase C in the α 1-Adrenoceptor Mediated Cardiac Hypertrophy. In: Ostadal, B., Dhalla, N. (eds) Cardiac Adaptations. Advances in Biochemistry in Health and Disease, vol 4. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-5203-4_17
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DOI: https://doi.org/10.1007/978-1-4614-5203-4_17
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