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Updated: Jan 25, 2026
09:11
Automation of the Micronucleus Assay Using Imaging Flow Cytometry and Artificial Intelligence
Published on: January 27, 2023
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Kinetics of Mimivirus Infection Stages Quantified Using Image Flow Cytometry
Liran Ben Yaakov1, Yael Mutsafi2, Ziv Porat3
1Department of Structural Biology, Weizmann Institute of Science, 7610001, Rehovot, Israel.
Summary
Image flow cytometry (IFC) offers a new way to study viral infections by tracking Mimivirus in Acanthamoeba polyphaga cells. This method reveals how cellular changes and stresses impact virus production, providing a detailed view of virus-host interactions.
Area of Science:
- Virology
- Cell Biology
- Microbiology
Background:
- Bulk measurements obscure variations in viral infection dynamics within cell populations.
- Understanding temporal progression of events in infected cells requires analyzing individual cells.
Purpose of the Study:
- To adapt image flow cytometry (IFC) for studying viral infections in adherent cells.
- To monitor Mimivirus infection cycle in Acanthamoeba polyphaga cells.
- To investigate the impact of cellular perturbations on viral infection.
Main Methods:
- Developed novel methods to preserve morphology of adherent amoeba cells for IFC analysis.
- Optimized IFC parameters to track key events in Mimivirus infection.
- Applied IFC to assess effects of oxidative stress and cytoskeletal disruption on infection.
Main Results:
- IFC enabled simultaneous monitoring of viral factories, replication centers, progeny accumulation, and cell morphology changes.
- Mild oxidative stress delayed but did not abolish Mimivirus infection stages.
- Functional actin cytoskeleton is essential for viral replication center fusion and progeny production.
Conclusions:
- IFC is a quantitative, high-throughput, and robust method for studying viral infection cycles.
- IFC provides insights into virus-host interactions and the impact of cellular environment on infection.
- This technique advances the study of viral pathogenesis and host responses.
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