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Updated: Jul 6, 2026
11:28
Dissecting Host-virus Interaction in Lytic Replication of a Model Herpesvirus
Published on: October 7, 2011
COPI activity coupled with fatty acid biosynthesis is required for viral replication
Sara Cherry1, Amit Kunte, Hui Wang
1University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania, United States of America. cherrys@mail.med.upenn.edu
Plos Pathogens
|October 17, 2006
Summary
Drosophila C virus replication depends on host cell's Golgi apparatus and fatty acid synthesis. These pathways, essential for viral RNA replication, could be targets for new antiviral therapies.
Area of Science:
- Virology
- Cell Biology
- Molecular Biology
Background:
- Viral RNA replication often occurs on host-derived cytoplasmic membranes.
- The regulation and cellular factors involved in forming these replication compartments are largely unknown.
- Understanding host-pathogen interactions in compartment formation is key to viral pathogenesis and vesicular trafficking.
Purpose of the Study:
- To investigate the cellular mechanisms underlying viral RNA replication compartment formation.
- To identify host factors required for Drosophila C virus replication in Drosophila cells.
- To explore potential antiviral targets based on host-pathogen interactions.
Main Methods:
- Genome-wide RNA interference screening in Drosophila cells.
- Analysis of Golgi apparatus remodeling and vesicular compartment formation.
- Investigation of host-encoded pathways, including coat protein complex I (COPI) and fatty acid biosynthesis.
Main Results:
- Drosophila C virus remodels the Golgi apparatus to create a novel vesicular compartment for RNA replication.
- Viral RNA replication requires the host coat protein complex I (COPI) coatamer and fatty acid biosynthesis pathways.
- These identified pathways are also limiting in human cells infected with poliovirus.
Conclusions:
- The regulated generation of the virogenic organelle is coupled to Golgi-derived vesicle budding and new membrane formation.
- COPI and fatty acid biosynthesis are essential host factors for viral replication compartment formation.
- These host pathways represent potential targets for novel antiviral therapies against RNA viruses.
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