Genetic modulation of adenosine receptor function and adenosine handling in murine hearts: Insights and issues
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Kevin J. Ashton, Jason N. Peart, R Ray Morrison, G Paul Matherne, Michael R. R. Blackburn, and John P. Headrick. (2007). Genetic modulation of adenosine receptor function and adenosine handling in murine hearts: Insights and issues. Journal of Molecular and Cellular Cardiology, 42(4), 693-705
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© Copyright Elsevier Inc., 2007
The adenosine receptor system has been attributed with a broad range of both physiological and so-called ‘retaliatory’ functions in the heart and vessels. Despite many years of research, the precise roles of adenosine within the cardiovascular system continue to be debated, and new functions are continually emerging. Adenosine acts via 4 known G-protein-coupled receptor (GPCR) sub-types: A1, A2A, A2B, and A3 adenosine receptors (ARs). In addition to roles in cardiovascular control, these receptors may represent therapeutic targets, having been attributed with roles in modifying cell death and injury, inflammatory processes, and cardiac and vascular remodeling during/after ischemic or hypoxic insult. A number of models have been developed in which AR sub-types and adenosine handling enzymes have been genetically deleted or transgenically overexpressed in an attempt to more equivocally identify the regulatory functions of these proteins, to identify their potential value as therapeutic targets, and to uncover new regulatory functions of this receptor family. Findings generally support current dogma regarding cardioprotection via A1 and A3ARs, and coronary vasoregulation via A2AR sub-types. However, some outcomes are both novel and controversial. This review outlines AR-modified murine models currently under study from the perspective of cardiovascular phenotype.
Kevin J. Ashton, Jason N. Peart, R Ray Morrison, G Paul Matherne, Michael R R. Blackburn, and John P. Headrick. "Genetic modulation of adenosine receptor function and adenosine handling in murine hearts: Insights and issues" Journal of Molecular and Cellular Cardiology 42 (2007): 693-705.
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