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Cell cycle molecules and diseases of the cardiovascular system
S B Petkova1, A Ashton, B Bouzahzah
1Department of Pathology, Division of Tropical Medicine and Parasitology, Albert Einstein College of Medicine, 1300 Morris Park Avenue, Bronx, New York 10461, USA.
Insights
Cardiovascular injury elevates endothelin-1 and mitogen-activated protein kinase (MAPK) pathways, impacting cell cycle regulators. Targeting these molecules offers potential therapies for cardiovascular diseases.
Area of Science:
- Cardiovascular Biology
- Molecular Signaling
- Cell Cycle Regulation
Background:
- Cardiovascular injury triggers increased endothelin-1 (ET-1) expression.
- Signaling pathways like mitogen-activated protein kinase (MAPK) are activated following cardiovascular insult.
- These pathways are implicated in cardiovascular diseases such as those induced by hypoxia, infection, and ischemia/reperfusion.
Purpose of the Study:
- To investigate the role of ET-1 and MAPK signaling in cardiovascular disease pathogenesis.
- To explore the connection between these pathways and cell cycle regulatory molecules.
- To highlight the therapeutic potential of targeting cell cycle regulators in cardiovascular conditions.
Main Methods:
- Analysis of endothelin-1 (ET-1) expression levels post-injury.
- Investigation of mitogen-activated protein kinase (MAPK) cascade activation.
- Assessment of downstream effects on cell cycle regulatory molecules (cyclins, CDKs, CDK inhibitors).
Main Results:
- Elevated ET-1 and activated MAPK pathways are observed in cardiovascular injury.
- Cell cycle regulatory molecules are identified as key downstream targets.
- These molecules play a role in cardiovascular remodeling and angiogenesis.
Conclusions:
- The interplay between ET-1, MAPK pathways, and cell cycle regulators is crucial in cardiovascular disease.
- Modulation of cell cycle molecules presents a promising therapeutic strategy.
- Targeting these pathways may ameliorate conditions like cardiomyopathy and restenosis.
Abstract:
Injury to the cardiovascular system causes an elevated expression of endothelin-1 (ET-1) and activation of several important signaling pathways including the mitogen-activated kinase (MAPK) cascade. The activation of these pathways has been implicated in the pathogenesis of cardiovascular disease caused by hypoxia, infections, and ischemia /reperfusion injury, cardiomyopathy and restenosis after balloon angioplasty. Important downstream targets of the MAPK and ET-1 pathways are the cell cycle regulatory molecules (cyclins, cyclin-dependent kinases, and cyclin-dependent kinase inhibitors). Regulation of these molecules contributes to remodeling throughout the cardiovascular system. In addition, cell cycle molecules are important in the regulation of angiogenesis. These new data have led to the development of potential therapeutic modalities targeting these regulatory molecules in order to ameliorate various cardiovascular disease states.