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- W2075610483 abstract "A novel l-nucleoside analog, 2′-fluoro-5-methyl-β-l-arabinofuranosyluracil (l-FMAU), was found to be a potent and selective inhibitor of Epstein-Barr virus (EBV) replication. The decrease in the amount of viral production was concentration dependent with a 90% inhibitory concentration of approximately 5 μM. Upon removal of the drug from treated cells, virus production resumed in 21 days. Metabolism studies indicated that l-FMAU could be converted to its mono-, di- and triphosphate metabolites in both EBV producing and non-producing cells. However, the amount of l-FMAU nucleotides formed was three times larger in EBV producing cells than in EBV non-producing cells. The mechanism of selectivity of l-FMAU against EBV does not appear to be due solely to the preferential phosphorylation of l-FMAU in EBV producing cells. The triphosphate of l-FMAU could not be utilized as a substrate by EBV DNA polymerase or the human DNA polymerases α, β, γ, or δ. Therefore, the incorporation of l-FMAU residues into viral DNA may not be the mechanism of antiviral activity. This compound appears to have a mechanism of action different from that of any other antiherpes virus nucleoside analogs. In addition, l-FMAU has very low cytotoxicity with 50% inhibition of cell growth occurring at a concentration of 1 mM. Given the potent inhibitory activity of this compound against EBV and its inability to be incorporated into cellular DNA, l-FMAU analogs should be explored as a new class of anti-EBV agents." @default.
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- W2075610483 date "1996-04-01" @default.
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- W2075610483 title "Inhibition of Epstein-Barr virus replication by a novel l-nucleoside, 2′-fluoro-5-methyl-β-l-arabinofuranosyluracil" @default.
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- W2075610483 doi "https://doi.org/10.1016/0006-2952(96)00049-4" @default.
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