Regulation of CaMKII signaling in cardiovascular disease
Mariya Y Mollova1, Hugo A Katus2, Johannes Backs3
1Research Unit Cardiac Epigenetics, Department of Cardiology, Angiology and Pneumology, University of Heidelberg , Heidelberg, Germany ; Department of Cardiology, Angiology and Pneumology, University of Heidelberg , Heidelberg, Germany ; Partner Site Heidelberg/Mannheim, German Center for Cardiovascular Research , Heidelberg, Germany.
Insights
Understanding protein kinase pathways is key to treating heart failure (HF). This review explores upstream regulation of Ca(2+)-calmodulin-dependent protein kinase II, offering potential new treatments for cardiovascular disease.
Area of Science:
- Cardiology
- Molecular Biology
- Biochemistry
Background:
- Heart failure (HF) is a leading cause of death globally.
- Adverse cardiac remodeling in HF involves complex molecular changes in cardiomyocytes.
- Protein kinase pathways are critical mediators linking stress signaling to cardiac dysfunction.
Purpose of the Study:
- To review mechanisms regulating protein kinase activity in cardiac disease.
- To focus on upstream regulatory mechanisms of Ca(2+)-calmodulin-dependent protein kinase II (CaMKII).
- To highlight the pathophysiological role of CaMKII regulation in cardiovascular disease.
Main Methods:
- Literature review focusing on protein kinase pathways in heart failure.
- Analysis of molecular mechanisms controlling protein kinase activity.
- Examination of upstream regulation of CaMKII.
Main Results:
- Alterations in protein kinase pathways are central to cardiomyocyte dysfunction in HF.
- Understanding protein-protein interactions, post-translational modifications, and anchoring proteins is crucial.
- Specific upstream regulatory mechanisms of CaMKII are implicated in cardiovascular disease progression.
Conclusions:
- Targeting CaMKII regulatory mechanisms offers potential therapeutic strategies for HF.
- Precise targeting of these mechanisms could lead to novel treatments for cardiovascular disease.
- Further research into CaMKII regulation may prevent and treat heart failure effectively.
Abstract:
Heart failure (HF) is a major cause of death in the developed countries (Murray and Lopez, 1996; Koitabashi and Kass, 2012). Adverse cardiac remodeling that precedes heart muscle dysfunction is characterized by a myriad of molecular changes affecting the cardiomyocyte. Among these, alterations in protein kinase pathways play often an important mediator role since they link upstream pathologic stress signaling with downstream regulatory programs and thus affect both the structural and functional integrity of the heart muscle. In the context of cardiac disease, a profound understanding for the overriding mechanisms that regulate protein kinase activity (protein-protein interactions, post-translational modifications, or targeting via anchoring proteins) is crucial for the development of specific and effective pharmacological treatment strategies targeting the failing myocardium. In this review, we focus on several mechanisms of upstream regulation of Ca(2+)-calmodulin-dependent protein kinase II that play a relevant pathophysiological role in the development and progression of cardiovascular disease; precise targeting of these mechanisms might therefore represent novel and promising tools for prevention and treatment of HF.
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