Journal
BLOOD PRESSURE
Volume 12, Issue 2, Pages 70-88Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/08037050310001057
Keywords
angiotensin II; AT1 and AT2 receptors; signalling; growth; regeneration; differentiation; apoptosis; cardiovascular and renal function; ACE inhibitors; AT1 receptor antagonists
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Angiotensin II (Ang II), the biologically active component of renin-angiotensin system ( RAS), acts through two receptor subtypes, the AT1 and the AT2 receptor. All classic physiological effects of Ang II, such as vasoconstriction, aldosterone and vasopressin release, sodium and water retention and sympathetic facilitation, are mediated by the AT1 receptor. Ang II, via its AT1 receptor, is also involved in cell proliferation, left ventricular hypertrophy, nephrosclerosis, vascular media hypertrophy, endothelial dysfunction, neointima formation and processes leading to athero-thrombosis. Recent investigations have established a role for the AT2 receptor in cardiovascular, brain and renal function as well as in the modulation of various biological processes involved in development, cell differentiation, tissue repair and apoptosis. This review summarizes new insights in the regulation, signalling and (patho-) physiological functions of AT1 and AT2 receptors. An extensive review on angiotensin receptors has been published recently ( de Gasparo M et al.,
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