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HHV-6 inhibition by two polar compounds
D Viza1, A Aranda-Anzaldo, D Ablashi
1U.R.A. C.N.R.S., Laboratoire d'Immunobiologie, Faculté de Médecine, Paris, France.
Antiviral Research
|May 1, 1992
Summary
Dimethyl sulfoxide (DMSO) and dimethylformamide (DMF), polar compounds, inhibit human herpesvirus 6 (HHV-6) infection in cell cultures. These agents reduce viral replication and cytopathic effects, preserving cell viability.
Area of Science:
- Virology
- Cell Biology
- Pharmacology
Background:
- Human herpesvirus 6 (HHV-6) is a significant human pathogen.
- Cell differentiation inducers are being explored for antiviral properties.
Purpose of the Study:
- To investigate the effect of polar compounds, dimethyl sulfoxide (DMSO) and dimethylformamide (DMF), on HHV-6 infection.
- To determine if these compounds can inhibit HHV-6 replication and cytopathic effects.
Main Methods:
- HSB2 cell cultures were infected with HHV-6.
- Cultures were treated with DMSO and DMF.
- Infection time-course, cytopathic effects, viral titration, and electron microscopy were analyzed.
Main Results:
- DMSO and DMF significantly delayed HHV-6 infection progression and cytopathic effects.
- Viral titration revealed a 3 log10 reduction in infectious HHV-6 particles.
- Electron microscopy confirmed cell viability and presence of extracellular virions in treated cultures, unlike lysed cells in controls.
Conclusions:
- Dimethyl sulfoxide and dimethylformamide demonstrate potent antiviral activity against HHV-6 in vitro.
- These compounds inhibit HHV-6 replication and protect infected cells from lysis.
- The precise mechanism of action requires further investigation.