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CGS 35601 and its orally active prodrug CGS 37808 as triple inhibitors of endothelin-converting enzyme-1, neutral endopeptidase 24.11, and angiotensin-converting enzyme.

Trapani, Angelo and Beil, Michael and Bruseo, Charles and Savage, Paula and Firooznia, Fariborz and Jeng, Arco (2004) CGS 35601 and its orally active prodrug CGS 37808 as triple inhibitors of endothelin-converting enzyme-1, neutral endopeptidase 24.11, and angiotensin-converting enzyme. Journal of Cardiovascular Pharmacology, 44 Suppl 1. S211-S215. ISSN 1533-4023

Abstract

CGS 35601 is a potent triple inhibitor of endothelin-converting enzyme-1, neutral endopeptidase 24.11, and angiotensin-converting enzyme. It inhibited the activities of these three enzymes with IC50 values of 55, 2 and 22 nM, respectively. In conscious rats, CGS 35601 suppressed the big endothelin-1-induced pressor response by 82% and 72% at 30 and 120 minutes, respectively, following injection at a dose of 10 mg/kg, intravenously. At the same dose, CGS 35601 increased plasma atrial natriuretic peptide (ANP) immunoreactivity by 170% for up to 4 hours in conscious rats infused with ANP, and it inhibited the angiotensin I-induced pressor response by 74-94% within the first 2 hours after dosing. Similar in vivo activities were also observed with its orally active prodrug, CGS 37808. This compound blocked the big endothelin-1- induced pressor response by 71% and 67% at 30 and 120 minutes, respectively, after an oral dose of 10 mgEq/kg in conscious rats. It also increased plasma ANP immunoreactivity by 103% for up to 4 hours and inhibited the angiotensin I-induced pressor response by an average of 49% within the first 4 hours after the same dosing regimen. By suppressing the biosyntheses of endothelin-1 and angiotensin II, two potent vasoconstrictors, while simultaneously potentiating the circulating levels of ANP, a vasorelaxant and diuretic, CGS 35601 and CGS 37808 may represent novel agents for the treatment of cardiovascular and renal diseases.

Item Type: Article
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Additional Information: author can archive post-print (ie final draft post-refereeing); Publisher's version/PDF cannot be used
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Date Deposited: 14 Dec 2009 13:56
Last Modified: 31 Jan 2013 01:11
URI: https://oak.novartis.com/id/eprint/647

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