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Pharmacological, Immunological, and Gene Targeting of the Renin-Angiotensin System for Treatment of Cardiovascular Disease

[ Vol. 13 , Issue. 12 ]

Author(s):

Rajko Igic and Rahim Behnia   Pages 1199 - 1214 ( 16 )

Abstract:


Effective blood pressure control with a large arsenal of conventional antihypertensive drugs, such as diuretics, beta-adrenergic blockers, and calcium channel blockers, significantly reduce the morbidity and mortality associated with cardiovascular disease. However, blood pressure control with these drugs does not reduce cardiovascular disease risks to the levels in normotensive persons. Only two drug classes that inhibit or antagonize portions of the renin-angiotensin system (RAS), angiotensin converting enzyme (ACE) inhibitors and angiotensin receptor type-1 (AT1 receptor) blockers, have protective and beneficial effects unrelated to the degree of blood pressure reduction. These drugs may prevent the blood pressure related functional and structural abnormalities of the cardiovascular system and reduce the end organdamage. The first part of this review presents the components of the RAS, biological actions of angiotensin peptides, and the functions of the enzymes that generate and metabolize angiotensins, including the likely effect of manipulating them. Special attention is devoted to renin, ACE, ACE2, chymase, and neprilysin. The second part of this review presents the rationale for targeting the RAS, based on clinical studies of the ACE inhibitors and AT1 receptor blockers. Finally, we present the investigational agents acting on the RAS that have a potential for clinical usage, and give the perspective of pharmacological, immunological and gene targeting of the RAS for treatment of cardiovascular disease.

Keywords:

renin-angiotensin system, Angiotensinogen, Chymase, Vasopeptidase Inhibitors, Renin Inhibitors

Affiliation:

Section of Anesthesiology Research, Room 427DX, Department of Anesthesiology and Pain Management,J.H.S. Hospital of Cook County, 637 S. Wood Street, Chicago, IL 60612, USA.



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