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Apoptosis-related genes expressed in cardiovascular development and disease: an EST approach
M Rezvani1, J D Barrans, K S Dai
1Institute of Medical Science, Toronto General Hospital, University of Toronto, Ontario, Canada.
Insights
Apoptosis, or programmed cell death, is vital for cardiovascular development and disease. Understanding its genetic regulation in the heart is key to new therapies for cardiovascular disease.
Area of Science:
- Cardiovascular Biology
- Molecular Biology
- Genetics
Background:
- Apoptosis (programmed cell death) is crucial for maintaining cell number homeostasis.
- While extensively studied in other tissues, apoptosis's role in cardiovascular development and disease is a recent focus.
- Cardiac myocytes' inability to proliferate necessitates understanding apoptosis in cardiovascular pathology.
Purpose of the Study:
- To review recent data on genes involved in cardiovascular apoptosis.
- To highlight the importance of identifying apoptotic regulators in the cardiovascular system.
- To explore the utility of expressed sequence tags (ESTs) for discovering novel apoptotic genes.
Main Methods:
- Literature review of recent studies on apoptosis in the cardiovascular system.
- Analysis of expressed sequence tags (ESTs) for gene expression profiling.
- Identification of potential apoptotic regulators from other tissues.
Main Results:
- Recent data implicates several genes in cardiovascular apoptosis.
- ESTs can establish expression profiles and identify novel apoptotic regulators.
- Key genes involved in apoptosis are crucial for cardiovascular development and disease.
Conclusions:
- Understanding the genetic mechanisms of apoptosis is critical for cardiovascular health.
- Identifying cardiovascular apoptotic regulators can lead to novel therapeutic strategies.
- ESTs are a valuable tool for discovering new genes in cardiovascular apoptosis.
Abstract:
Apoptosis (programmed cell death) is an important process which, in conjunction with cell proliferation, maintains cell number homeostasis. Although apoptosis has been more extensively investigated in other tissues [1,2], only recently has this process been suspected as a significant contributor to both disease and normal development of the cardiovascular system [3-6]. Grasping a comprehension of the underlying genetic mechanisms of apoptosis is especially crucial considering that cardiac myocytes irreversibly exit the cell cycle and thus fail to proliferate during pathological conditions. Despite great strides in understanding the molecular pathways of apoptosis, there still remain numerous questions to be answered. Identifying key genes that are involved in the regulatory process of apoptosis in the cardiovascular system will serve as a basis for creating more effective therapeutic treatments in cardiovascular disease and provide an understanding of how cardiac development is modulated. This review provides a brief summary of recent data implicating genes that may be involved in apoptosis in the cardiovascular system. It also outlines the continued usefulness of large-scale generation of expressed sequence tags (ESTs) to establish expression profiles from the cardiovascular system and as a means of identifying potentially significant apoptotic regulators previously characterized in other tissues but not as yet in the cardiovascular system.