Activity of penciclovir against Epstein-Barr virus.

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RESUMO

Penciclovir inhibited the productive replication cycle of Epstein-Barr virus (EBV) in assays measuring infectious virus production, viral antigen expression, and viral DNA synthesis. In the test measuring inhibition of EBV DNA synthesis, 50% effective concentrations of penciclovir and acyclovir were 2.3 +/- 0.8 and 2.2 +/- 0.6 micrograms/ml, respectively. The 50% cell growth inhibitory concentration of penciclovir was > 100 micrograms/ml for both P3HR-1 and Raji cells. Penciclovir is a selective inhibitor of EBV in cell culture.

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