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13:47
Efficient Recombinant Parvovirus Production with the Help of Adenovirus-derived Systems
Published on: April 23, 2012
New PARP gene with an anti-alphavirus function.
Svetlana Atasheva1, Maryna Akhrymuk, Elena I Frolova
1Department of Microbiology, University of Alabama, Birmingham, Alabama, USA.
Journal of Virology
|May 25, 2012
Summary
Researchers identified a cellular gene, PARP12L, that helps clear Venezuelan equine encephalitis virus (VEEV) and other alphaviruses. This discovery offers potential for new antiviral treatments against these significant pathogens.
Area of Science:
- Virology
- Immunology
- Molecular Biology
Background:
- Alphaviruses are significant mosquito-borne pathogens affecting humans and animals.
- Alphavirus infection leads to high viremia, dependent on interfering with host antiviral responses.
- Identifying cellular factors for virus clearance is key for developing new antiviral therapies.
Purpose of the Study:
- To identify cellular genes involved in the clearance of Venezuelan equine encephalitis virus (VEEV).
- To investigate the role of interferon-stimulated genes (ISGs) in non-cytopathic alphavirus clearance.
- To explore potential antiviral targets within the host cell machinery.
Main Methods:
- Development of a non-cytopathic VEEV mutant for studying viral replication and clearance.
- Analysis of gene expression profiles using microarray technology.
- Bioinformatic analysis to identify activated cellular genes during VEEV clearance.
- Functional assessment of identified genes, including PARP12L, on viral replication.
Main Results:
- A spectrum of IFN-stimulated genes (ISGs) was identified as being activated during VEEV clearance.
- The long isoform of PARP12 (PARP12L) was found to inhibit the replication of VEEV and other alphaviruses.
- PARP12L also demonstrated inhibitory effects on various other RNA viruses.
- Overexpression of other PARP superfamily members also inhibited VEEV replication.
Conclusions:
- PARP12L is a key cellular factor involved in controlling alphavirus replication.
- The study highlights the potential of targeting host factors like PARP12 for broad-spectrum antiviral strategies.
- Understanding host-pathogen interactions in alphavirus infections can lead to novel therapeutic interventions.
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