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Updated: Nov 30, 2025
18:10
Isolation of Fidelity Variants of RNA Viruses and Characterization of Virus Mutation Frequency
Published on: June 16, 2011
29.9K
Translation and Replication Dynamics of Single RNA Viruses
Sanne Boersma1, Huib H Rabouw2, Lucas J M Bruurs1
1Oncode Institute, Hubrecht Institute-KNAW and University Medical Center Utrecht, 3584 CT Utrecht, the Netherlands.
Cell
|November 14, 2020
Summary
New imaging technology reveals RNA virus replication is highly variable between cells. This study identifies early viral RNA replication as a key bottleneck in infection, offering insights into virus-host interactions.
Area of Science:
- Virology
- Molecular Biology
- Cell Biology
Background:
- RNA viruses are significant global pathogens, yet early infection stages remain poorly understood due to limited sensitive assays.
- Understanding the initial hours of RNA virus infection is crucial for developing effective antiviral strategies.
Purpose of the Study:
- To develop a novel single-molecule imaging assay for real-time observation of individual RNA virus replication and translation in live cells.
- To investigate the heterogeneity and coordination of early viral RNA replication and translation dynamics.
- To identify critical bottlenecks and host factors influencing early viral RNA replication.
Main Methods:
- Development of a single-molecule imaging assay named Virus Infection Real-time Imaging (VIRIM).
- Application of VIRIM to visualize and quantify translation and replication of individual RNA viruses within live host cells.
- Analysis of single-RNA virus dynamics to uncover cell-to-cell variations and inter-molecular coordination.
Main Results:
- VIRIM demonstrated significant heterogeneity in RNA virus replication dynamics across different cells.
- Extensive coordination was observed between the translation and replication processes of single viral RNA molecules.
- The replication step of the incoming viral RNA was identified as a major bottleneck limiting successful infection.
- Host genes involved in the inhibition of early viral replication were identified.
Conclusions:
- Single-molecule imaging provides a powerful approach to study virus replication and virus-host interactions.
- Early viral RNA replication is a critical control point in the infection cycle.
- The VIRIM assay has broad applicability for studying diverse RNA viruses and their interactions with host cells.
Keywords:
+RNA virusSunTagVIRIMsingle-molecule imagingviral replicationviral translationvirus-host competitionMore Related Videos
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