Related Experiment Video
Updated: Jul 31, 2025
11:54
Measurement of BK-polyomavirus Non-Coding Control Region Driven Transcriptional Activity Via Flow Cytometry
Published on: July 13, 2019
9.0K
Single-Cell, High-Content Microscopy Analysis of BK Polyomavirus Infection
Megan C Procario1, Jonathan Z Sexton2,3,4, Benjamin S Halligan2
1Department of Microbiology and Immunology, Medical School, University of Michigan, Ann Arbor, Michigan, USA.
Microbiology Spectrum
|May 8, 2023
Summary
BK polyomavirus (BKPyV) infects most people, but disease only occurs in the immunocompromised. This study reveals significant differences in BKPyV infection dynamics at the single-cell level, challenging previous assumptions from bulk population studies.
Area of Science:
- Virology
- Cell Biology
- Immunology
Background:
- BK polyomavirus (BKPyV) establishes persistent infections in the majority of the adult population.
- BKPyV disease primarily affects transplant recipients on immunosuppressants, with limited treatment options.
- Previous studies relied on bulk cell populations, assuming uniform infection dynamics.
Purpose of the Study:
- To investigate BKPyV infection dynamics at the single-cell level.
- To analyze viral protein (TAg), PML, DNA, and nuclear morphology in individual infected cells.
- To establish a novel high-content, single-cell microscopy assay for BKPyV research.
Main Methods:
- High-content microscopy was employed to analyze BKPyV infection in single cells.
- Measurements included viral protein large T antigen (TAg), PML, DNA, and nuclear morphology.
- Data were analyzed to identify heterogeneity in infection parameters across individual cells and time points.
Main Results:
- Significant heterogeneity was observed in BKPyV infection among individual cells.
- TAg levels within cells did not consistently increase over time.
- Cells with similar TAg levels exhibited distinct characteristics, indicating complex infection dynamics.
Conclusions:
- High-content, single-cell microscopy provides novel insights into the heterogeneous nature of BKPyV infection.
- This approach challenges assumptions derived from bulk population studies.
- The developed assay is a powerful tool for future BKPyV research and understanding viral biology.
