Capsid-targeted viral inactivation (CTVI) has emerged as a conceptually powerful antiviral strategy that exploits viral structural proteins to target a destructive enzyme specifically into progeny virions. We have recently demonstrated the principle of CTVI against dengue virus infection and observed a modest therapeutic effect in vitro (Arch Virol 2005, 150: 659–669). Here we tested a prophylactic model of CTVI, in which mammalian cells stably expressing the dengue 2 virus capsid protein fused to a nuclease were infected with dengue virus and determined the effects on progeny virion infectivity. CTVI efficiently destroyed dengue 2 virus from within and decreased the infectious titers by 10 3 - to 10 4 -fold, suggesting that CTVI has potential in the prophylactic application for dengue virus infection.
Archives of Virology – Springer Journals
Published: Feb 1, 2006
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