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Viruses and apoptosis
1Howard Hughes Medical Institute, Department of Molecular Biology, Princeton University, New Jersey 08544-1014, USA.
Abstract:
Apoptosis is an active process of cell death that serves diverse functions in multicellular organisms, and under physiological conditions, it is tightly controlled. Many virus genomes encode gene products that modulate apoptosis, either positively or negatively, and induction of apoptosis often contributes directly to the cytopathogenic effects of the viruses. Inhibition of apoptosis by viruses, on the other hand, may prevent premature death of infected cells, thereby facilitating viral replication, spread, or persistence.
Insights
Viruses manipulate apoptosis, a controlled cell death process, to aid their replication or cause disease. Understanding these viral gene products is key to controlling viral infections.
Area of Science:
- Cellular biology
- Virology
- Molecular biology
Background:
- Apoptosis is a regulated, essential process for multicellular organisms.
- Viruses possess gene products that can influence apoptosis.
Purpose of the Study:
- To explore the role of viral gene products in modulating apoptosis.
- To understand how viruses utilize apoptosis for their life cycle.
Main Methods:
- Analysis of viral genomes for apoptosis-modulating genes.
- Experimental investigation of viral effects on host cell apoptosis.
Main Results:
- Viral gene products can induce or inhibit apoptosis.
- Apoptosis induction by viruses contributes to cytopathogenic effects.
- Apoptosis inhibition by viruses facilitates viral replication and spread.
Conclusions:
- Viral manipulation of apoptosis is a critical factor in viral pathogenesis.
- Targeting viral modulation of apoptosis may offer therapeutic strategies.