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. 1997 May 1;99(9):2082–2086. doi: 10.1172/JCI119380

Sensitivity of Kaposi's sarcoma-associated herpesvirus replication to antiviral drugs. Implications for potential therapy.

D H Kedes 1, D Ganem 1
PMCID: PMC508037  PMID: 9151779

Abstract

Using a cell line (termed BCBL-1) derived from a peripheral effusion (body cavity-based) lymphoma latently infected with Kaposi's sarcoma-associated herpesvirus (KSHV), we recently reported the successful induction of KSHV replication in culture (Renne, R., W. Zhong, B. Herndier, M. McGrath, N. Abbey, D. Kedes, and D. Ganem. 1996. Nat. Med. 2:342-346). Here we report the first use of this system for establishing the susceptibility of KSHV to available antiviral drugs. Latently infected BCBL-1 cells were induced to lytic replication with phorbol esters; such cells secrete large numbers of KSHV virions into the culture medium. We assayed the ability of the antivirals to block KSHV production, as measured by the release of encapsidated viral DNA. The results show that KSHV replication is insensitive to acyclovir (9-[(2-hydroxyethoxy)-methyl]guanine) (50% inhibitory concentration [IC50] = 60-80 microM), but sensitive to ganciclovir (9-[1,3-dihydroxy-2-propoxymethyl]guanine) (IC50 = 2.7-4 microM), foscarnet (trisodium phosphonoformate hexahydrate) (IC50 = 80-100 microM), and cidofovir (1-[(S)-3-hydroxy-2-(phosphonomethoxy)propyl]cytosine) (IC50 = 0.5-1 microM).

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Selected References

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