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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:dateCreated |
1987-4-20
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pubmed:abstractText |
It has been recently shown that VP-16-213, a semi-synthetic derivative of podophyllotoxin, inhibits the function of mammalian DNA topoisomerase II. In the present study, we examined the effects of VP-16-213 on the replication of herpes simplex virus type 2 (HSV-2). The compound did not inhibit the synthesis of early viral polypeptides at concentrations at which viral DNA synthesis was strongly suppressed, but induced double-strand breaks in newly synthesized HSV DNA. Electron microscopic examination of treated cells revealed the presence of a number of capsids with empty or partial cores. The level of topoisomerase II activity remained unaltered after infection, and all attempts to isolate VP-16-213-resistant mutants of HSV-2 have failed in spite of extensive efforts. It is suggested therefore that the mode of action of VP-16-213 may be inhibition of viral DNA synthesis by impairing the function of host cell topoisomerase II.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Mar
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pubmed:issn |
0022-1317
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
68 ( Pt 3)
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
913-8
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pubmed:dateRevised |
2007-11-15
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pubmed:meshHeading |
pubmed-meshheading:3029314-Animals,
pubmed-meshheading:3029314-Cells, Cultured,
pubmed-meshheading:3029314-DNA Replication,
pubmed-meshheading:3029314-Embryo, Mammalian,
pubmed-meshheading:3029314-Etoposide,
pubmed-meshheading:3029314-Mice,
pubmed-meshheading:3029314-Simplexvirus,
pubmed-meshheading:3029314-Virus Replication
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pubmed:year |
1987
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pubmed:articleTitle |
Effects of the epipodophyllotoxin VP-16-213 on herpes simplex virus type 2 replication.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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