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Just the beginning: novel functions for angiotensin-converting enzymes
Urs Eriksson1, Ursula Danilczyk, Josef M Penninger
1IMBA, Institute for Molecular Biotechnology of the Austrian Academy of Sciences, A-1030 Vienna, Austria.
Current Biology : CB
|November 7, 2002
Summary
The renin-angiotensin system regulates blood pressure. New research highlights angiotensin-converting enzyme 2 (ACE2) as a key negative regulator, crucial for cardiac function and preventing heart failure.
Area of Science:
- Cardiovascular research
- Endocrinology
- Molecular biology
Background:
- Cardiovascular disease is a leading cause of death, with hypertension, diabetes, and smoking as major risk factors.
- The renin-angiotensin system (RAS) is critical for blood pressure and fluid balance.
- Traditional RAS blockade (e.g., ACE inhibitors) has advanced hypertension and heart failure treatment.
Purpose of the Study:
- To explore the complex peptide mediators within the RAS.
- To elucidate the role of angiotensin-converting enzyme 2 (ACE2) as a negative regulator of the RAS.
- To discuss the interplay between ACE and ACE2 in cardiovascular regulation.
Main Methods:
- Review of current literature on the renin-angiotensin system.
- Analysis of the function of angiotensin-converting enzymes ACE and ACE2.
- Discussion of effector peptides generated by ACE and ACE2.
Main Results:
- The RAS is more complex than previously understood, involving additional peptide mediators.
- Angiotensin-converting enzyme 2 (ACE2) acts as a negative regulator of the RAS.
- ACE2 deficiency in the heart leads to impaired cardiac contractility and increased hypoxia-induced genes.
Conclusions:
- ACE2 plays a vital role in maintaining cardiac function.
- Understanding the ACE/ACE2 balance is crucial for managing cardiovascular diseases.
- ACE2 represents a significant target for future therapeutic strategies in heart failure and hypertension.