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[Inhibition of NDV replication by theophylline]

I Neĭcheva, L Vasileva

    Veterinarno-Meditsinski Nauki
    |January 1, 1985
    PubMed

    Insights

    Theophylline inhibits Newcastle disease virus replication in cell cultures by blocking mature virion production. This antiviral effect was observed when theophylline was administered before or after viral infection, significantly reducing virus titers.

    Area of Science:

    • Virology
    • Cell Biology
    • Pharmacology

    Context:

    • Newcastle disease virus (NDV) poses a significant threat to avian populations.
    • Understanding viral replication mechanisms is crucial for developing effective antiviral strategies.
    • Theophylline is a methylxanthine drug with known biological activities.

    Purpose:

    • To investigate the antiviral potential of theophylline against Newcastle disease virus (NDV).
    • To determine the effect of theophylline on NDV replication in vitro.
    • To elucidate the mechanism by which theophylline inhibits NDV.

    Summary:

    • Theophylline demonstrated an inhibitory effect on NDV replication in chick embryo fibroblast cultures at a concentration of 1 mM.
    • Treatment with theophylline, either 24 hours pre-infection or 1 hour post-adsorption, reduced NDV titers by approximately 2 log units.
    • The primary mechanism of inhibition involves the blocking or arresting of mature virion production.

    Impact:

    • Theophylline shows promise as a potential antiviral agent against Newcastle disease virus.
    • This study provides insights into the molecular mechanisms of NDV replication and potential points of therapeutic intervention.
    • Findings could contribute to strategies for controlling NDV outbreaks in poultry through pharmacological means.

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