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Nature. 2002 Jun 20;417(6891):822-8.

Angiotensin-converting enzyme 2 is an essential regulator of heart function.

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1
Amgen Research Institute/Ontario Cancer Institute and Department of Medical Biophysics and Immunology, University of Toronto, University Avenue, Toronto, Ontario M5G 2M9, Canada.

Abstract

Cardiovascular diseases are predicted to be the most common cause of death worldwide by 2020. Here we show that angiotensin-converting enzyme 2 (ace2) maps to a defined quantitative trait locus (QTL) on the X chromosome in three different rat models of hypertension. In all hypertensive rat strains, ACE2 messenger RNA and protein expression were markedly reduced, suggesting that ace2 is a candidate gene for this QTL. Targeted disruption of ACE2 in mice results in a severe cardiac contractility defect, increased angiotensin II levels, and upregulation of hypoxia-induced genes in the heart. Genetic ablation of ACE on an ACE2 mutant background completely rescues the cardiac phenotype. But disruption of ACER, a Drosophila ACE2 homologue, results in a severe defect of heart morphogenesis. These genetic data for ACE2 show that it is an essential regulator of heart function in vivo.

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PMID:
12075344
DOI:
10.1038/nature00786
[Indexed for MEDLINE]
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