Influence of moraprenylphosphates (phosphorylated polyprenol of plant origin) upon the accumulation of Taylor murine encephalomyelitis virus VP3 protein in the susceptible cell cultures was studied. It has been shown that moraprenylphosphates inhibited the accumulation of VP3 at early stages of infectious process. Moraprenylphosphates were found to decrease infectivity of the virus as well as virus-induced cellular apoptosis. Mechanisms of immunomodulating and antiviral activity of moraprenylphosphates and prospects of their use as antiviral drugs have been discussed.
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