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Published on: January 7, 2013
PKC isozymes in chronic cardiac disease: possible therapeutic targets?
Eric Churchill1, Grant Budas, Alice Vallentin
1Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, CA 94305-5174, USA.
Insights
Targeting Protein Kinase C (PKC) offers a promising therapeutic strategy for cardiovascular diseases. This review explores isozyme-specific PKC regulators for treating heart conditions like atherosclerosis and hypertrophy.
Area of Science:
- Biochemistry
- Cardiology
- Pharmacology
Background:
- Cardiovascular disease (CVD) is a leading cause of mortality in the U.S.
- Protein Kinase C (PKC) is implicated in heart disease pathologies.
- Developing PKC-targeted drugs is challenging due to isozyme complexity and normal functions.
Purpose of the Study:
- To review the therapeutic potential of targeting Protein Kinase C (PKC) in cardiovascular diseases.
- To discuss the structure, function, and distribution of PKC isozymes in healthy and diseased hearts.
- To examine the development of isozyme-selective PKC regulators for therapeutic applications.
Main Methods:
- Review of existing literature on PKC structure, function, and role in cardiac pathologies.
- Analysis of rationally designed, isozyme-selective PKC regulators.
- Examination of pharmacological principles for targeting PKC signaling cascades.
Main Results:
- PKC isozymes play critical roles in atherosclerosis, fibrosis, and cardiac hypertrophy.
- Isozyme-specific targeting strategies are being developed to overcome challenges of PKC drug development.
- Understanding PKC signaling is key to developing effective cardiovascular therapies.
Conclusions:
- Targeting specific PKC isozymes presents a viable therapeutic avenue for cardiovascular diseases.
- Isozyme-selective regulators offer improved specificity and reduced side effects.
- Further research into PKC pharmacology can lead to novel treatments for heart conditions.
Abstract:
Cardiovascular disease is the leading cause of death in the United States. Therefore, identifying therapeutic targets is a major focus of current research. Protein kinase C (PKC), a family of serine/threonine kinases, has been identified as playing a role in many of the pathologies of heart disease. However, the lack of specific PKC regulators and the ubiquitous expression and normal physiological functions of the 11 PKC isozymes has made drug development a challenge. Here we discuss the validity of therapeutically targeting PKC, an intracellular signaling enzyme. We describe PKC structure, function, and distribution in the healthy and diseased heart, as well as the development of rationally designed isozyme-selective regulators of PKC functions. The review focuses on the roles of specific PKC isozymes in atherosclerosis, fibrosis, and cardiac hypertrophy, and examines principles of pharmacology as they pertain to regulators of signaling cascades associated with these diseases.
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