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  • Title: Herpes virus and viral DNA synthesis in ultraviolet light-irradiated cells.
    Author: Coppey J, Nocentini S.
    Journal: J Gen Virol; 1976 Jul; 32(1):1-15. PubMed ID: 182908.
    Abstract:
    The rate of virus DNA synthesis and the production of infectious virus are impaired in stationary monkey kidney CV-I cells irradiated with u.v. before infection with herpes simplex virus (HSV). The inhibition of HSV multiplication is due to u.v.-induced damage in cell DNA. CV-I cells recover their capacity to support HSV growth during the 40 to 48 h after irradiation, and the final virus yield is enhanced by a factor of 10. The time course of the recovery is similar to that of the excision repair process occurring in u.v.-irradiated mammalian cells. Caffeine, hydroxyurea and cycloheximide inhibit the recovery. Fluorodeoxyuridine is without effect. A small but significant amount of labelled dThd coming from irradiated cell DNA is incorporated into virus DNA. HSV specified thymidine kinase seems to be more effective for virus DNA synthesis in irradiated than in control cells.
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