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Related Experiment Videos

Adenovirus-transformed cells restrict Herpes simplex virus replication.

A G Tucker, J J Docherty

    Infection and Immunity
    |March 1, 1975
    PubMed
    Summary

    Simian adenovirus 7 transformed cells resist herpes simplex virus replication. The block occurs after viral attachment but before viral DNA synthesis, indicating a novel antiviral mechanism.

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    Scanning·1999

    Area of Science:

    • Virology
    • Cell Biology
    • Molecular Biology

    Background:

    • Herpes simplex virus (HSV) types 1 and 2 are common human pathogens.
    • Cell lines are crucial models for studying viral replication and host-pathogen interactions.

    Purpose of the Study:

    • To investigate the mechanism by which simian adenovirus 7 (SA7) transformation confers resistance to HSV-1 and HSV-2 infection in a susceptible cell line.
    • To identify the stage of the viral life cycle at which replication is inhibited.

    Main Methods:

    • Cell culture and viral infection assays.
    • Kinetic studies to analyze viral attachment and early gene expression.
    • Isopycnic centrifugation to assess viral DNA synthesis.
    • Indirect immunofluorescence to detect viral protein expression.

    Main Results:

    • Transformed cells supported initial viral attachment and some early genomic functions, evidenced by low levels of viral thymidine kinase.
    • Viral deoxyribonucleic acid (DNA) synthesis was not detected in the abortive system.
    • Less than 10% of cells showed detectable viral proteins via indirect immunofluorescence.

    Conclusions:

    • SA7 transformation alters cells, rendering them resistant to HSV-1 and HSV-2.
    • The resistance mechanism involves a block in viral replication after attachment but prior to viral DNA synthesis.

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