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Hypertension. 2011 Sep;58(3):333-40. doi: 10.1161/HYPERTENSIONAHA.110.155952. Epub 2011 Jul 18.

Role of adenosine 5'-triphosphate in regulating renal microvascular function and in hypertension.

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  • 1Department of Physiology CA3137, Georgia Health Sciences University, 1120 15th St, Augusta, GA 30912, USA.


ATP is an essential energy substrate for cellular metabolism, but it can also influence many biological processes when released into the extracellular milieu. Research has established that extracellular ATP acts as an autocrine/paracrine factor that regulates many physiological functions. Alternatively, excessive extracellular ATP levels contribute to pathophysiological processes, such as inflammation, cell proliferation and apoptosis, and atherosclerosis. Renal P2 receptors are widely distributed throughout glomeruli, vasculature, and tubular segments and participate in controlling renal vascular resistance, mediating renal autoregulation, and regulating tubular transport function. This review will focus on the role of ATP-P2 receptor signaling in regulating renal microvascular function and autoregulation, recent advances on the role of ATP-P2 signaling in hypertension-associated renal vascular injury, and emerging new directions.

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