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Cytokines in heart failure
1Department of Carcinogenesis and Molecular Biology, Institute of Oncology Bucharest, Bucharest, Romania.
Insights
Cytokines play a crucial role in heart failure (HF) progression and severity. Understanding these cytokine networks is vital for developing new heart failure treatments and utilizing them as predictive biomarkers.
Area of Science:
- Cardiology
- Immunology
- Biochemistry
Background:
- Heart failure (HF) progression involves structural and functional changes preceding clinical symptoms.
- Numerous cytokines from cardiac and non-cardiac tissues are implicated in HF.
- Circulating cytokine levels correlate with HF development and severity.
Purpose of the Study:
- To discuss the pathophysiological roles of cytokines in HF.
- To explore the utility of cytokines as predictive biomarkers for HF.
- To highlight the need for understanding cytokine networks in distinct HF phenotypes for new therapies.
Main Methods:
- Review of intracardiac and extracardiac cytokine origins in HF.
- Analysis of cytokine modulation of inflammation, myocyte stress, injury, apoptosis, fibroblast activation, and extracellular matrix remodeling.
- Discussion of clinical considerations for cytokine use as prognostic biomarkers and therapeutic targets.
Main Results:
- Cytokines are key mediators in HF pathogenesis, influencing inflammation and cardiac remodeling.
- Cytokine levels serve as important predictive biomarkers for HF progression and severity.
- Distinct cytokine networks contribute to different HF phenotypes, such as HF with reduced or preserved ejection fraction.
Conclusions:
- A comprehensive understanding of the cytokine network is essential for advancing HF treatment strategies.
- Cytokines hold significant potential as both prognostic biomarkers and therapeutic targets in managing heart failure.
- Further research into cytokine-mediated mechanisms is crucial for personalized HF management.
Abstract:
The natural history of heart failure (HF) is not linear, because changes in the heart structure and function start long before the disease becomes clinically evident. Many different cytokines originating from intracardiac tissues (cardiomyocytes, cardiac endothelial cells, cardiac fibroblasts, and cardiac infiltrated immune cells) or extracardiac tissues (adipose tissue, gut, and lymphoid organs) have been identified in HF. Because the levels of circulating cytokines correlate with the development and severity of HF, these mediators may have both pathophysiological importance, through their ability to modulate inflammation, myocyte stress/stretch, myocyte injury and apoptosis, fibroblast activation and extracellular matrix remodeling, and utility as clinical predictive biomarkers. A greater understanding of the mechanisms mediated by the multifaceted network of cytokines, leading to distinct HF phenotypes (HF with reduced or preserved ejection fraction), is urgently needed for the development of new treatment strategies. In this chapter, all these issues were thoroughly discussed, pointing on the practical considerations concerning the clinical use of the cytokines as prognostic biomarkers and potential therapeutic targets in HF.
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