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Urocortin2 measurement for heart failure assessment
Kohei Inukai1, Kazuya Miyashita2, Kazuhiko Kotani3
1Department of Cardiology, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa, Nagoya, 466-8550, Japan.
Scientific Reports
|April 24, 2025
Summary
Researchers developed a new assay to measure urocortin2 (UCN2) in heart failure patients. Higher UCN2 blood levels correlated with reduced cardiac function, suggesting a novel diagnostic marker for cardiovascular disease.
Area of Science:
- Cardiovascular Medicine
- Endocrinology
- Biomarker Discovery
Background:
- Heart failure (HF) is a major global health burden, often progressing to advanced stages despite available therapies.
- G protein-coupled receptors (GPCRs) are key targets for HF treatment, with GPCRs considered promising for novel cardiovascular disease diagnostics and therapeutics.
- Corticotropin-releasing hormone receptor 2 (CRHR2) and its ligand urocortin2 (UCN2) are implicated in cardiovascular diseases, but their precise clinical role in HF is not fully understood.
Purpose of the Study:
- To develop and validate a novel assay for quantifying blood UCN2 levels in patients with heart failure.
- To investigate the relationship between blood UCN2 levels and cardiac function, specifically ejection fraction, in heart failure patients.
- To explore the potential of UCN2 as a diagnostic biomarker for heart failure pathophysiology.
Main Methods:
- Development of a specific assay for measuring UCN2 concentrations in human blood samples.
- Analysis of blood UCN2 levels in a cohort of 52 patients diagnosed with heart failure.
- Correlation analysis of UCN2 levels with cardiac ejection fraction and brain natriuretic peptide (BNP).
Main Results:
- The developed assay successfully measured blood UCN2 levels in heart failure patients.
- A significant negative correlation was observed between blood UCN2 levels and cardiac ejection fraction.
- Blood UCN2 levels did not correlate with BNP but were elevated in patients with cardiomyopathy compared to other heart failure types.
Conclusions:
- Blood UCN2 levels show a potential inverse relationship with cardiac function in heart failure patients.
- UCN2 may serve as a novel biomarker for assessing heart failure pathophysiology, distinct from current markers like BNP.
- Further research into UCN2's role could lead to new diagnostic strategies for cardiovascular diseases.
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