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Updated: Jun 13, 2026

Coronary Progenitor Cells and Soluble Biomarkers in Cardiovascular Prognosis after Coronary Angioplasty
Published on: January 28, 2020
ST2: a novel biomarker for heart failure
Anju Bhardwaj1, James L Januzzi
1Cardiology Division, Massachusetts General Hospital, 32 Fruit Street, Yawkey 5984, Boston, MA 02114, USA.
Soluble ST2 (sST2) is a novel cardiovascular biomarker indicating ventricular biomechanical overload and heart failure severity. Elevated sST2 levels are valuable for predicting heart failure prognosis.
Area of Science:
- Cardiovascular Medicine
- Biomarker Discovery
- Immunology
Background:
- ST2 is an IL-1 receptor family member with transmembrane (ST2L) and soluble (sST2) isoforms.
- Initially linked to inflammatory diseases, ST2/IL-33 signaling is now recognized for its role in cardiac remodeling.
- Soluble ST2 (sST2) has emerged as a key biomarker in cardiovascular medicine.
Purpose of the Study:
- To review the prognostic utility of sST2 in heart failure.
- To discuss the role of sST2 as a biomarker for ventricular biomechanical overload.
- To explore current and future applications of sST2 in cardiovascular prognostication.
Main Methods:
- Literature review of studies investigating sST2 in heart failure.
- Analysis of the relationship between sST2 concentrations and heart failure severity.
- Evaluation of sST2's prognostic value in various heart failure cohorts.
Main Results:
- sST2 concentrations correlate with the presence and severity of heart failure.
- Elevated sST2 levels are significantly associated with adverse cardiovascular outcomes.
- sST2 provides incremental prognostic information beyond traditional heart failure biomarkers.
Conclusions:
- sST2 is a valuable prognostic biomarker in heart failure.
- The ST2/IL-33 pathway plays a critical role in cardiac remodeling and biomechanical stress.
- Further research is warranted to optimize the clinical application of sST2 in heart failure management.
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