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Electrical conductivity dispersion as a probe of membrane modifications in mouse polyomavirus infected cells in
A Bonincontro1, A Iacoangeli, G Risuleo
1Dipartimento di Fisica, Universita di Roma "La Sapienza", Roma, Italy.
Abstract:
In this report we investigate the inhibition of membrane conductivity, due to the murine polyomavirus infection in permissive cells in culture. We define experimental conditions to have reproducible results and demonstrate that the intensity of the effects on the cell membrane, depends upon the virus titer used in the infection. Finally, the virus dependent effects disappear if the infection is performed in the presence of a drug that inhibits polymavirus DNA replication.
Insights
Murine polyomavirus infection inhibits cell membrane conductivity. This effect is dose-dependent and can be blocked by inhibiting viral DNA replication, indicating a link between viral replication and membrane changes.
Area of Science:
- Virology
- Cell Biology
- Membrane Biophysics
Background:
- Murine polyomavirus (MPyV) is a common oncogenic virus in mice.
- Viral infections can alter host cell membrane properties.
- Understanding these alterations is crucial for comprehending viral pathogenesis.
Purpose of the Study:
- To investigate the impact of MPyV infection on membrane conductivity in permissive cells.
- To establish reproducible experimental conditions for studying these effects.
- To determine the relationship between viral load and membrane conductivity changes.
Main Methods:
- Infection of permissive cells with varying titers of MPyV.
- Measurement of membrane conductivity using electrophysiological techniques.
- Treatment of infected cells with a DNA replication inhibitor.
Main Results:
- MPyV infection significantly alters membrane conductivity in a dose-dependent manner.
- The observed changes in membrane conductivity correlate with the virus titer.
- Inhibition of MPyV DNA replication prevents the alterations in membrane conductivity.
Conclusions:
- MPyV infection directly impacts cell membrane conductivity.
- The extent of membrane alteration is proportional to the viral load.
- Viral DNA replication is essential for the observed changes in membrane conductivity.
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