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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
6
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pubmed:dateCreated |
1988-5-3
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pubmed:abstractText |
Cell-cycle, phase-specific cell kill caused by carmustine (BCNU) was measured in 4 cell lines with different sensitivities to the drug. Cells were treated with BCNU for 1 hour after which enriched subpopulations in various phases of the cell cycle were obtained by centrifugal elutriation and were assayed for cell survival. Levels of activity of guanine O6-alkyltransferase were measured for each line; intracellular levels of this repair protein have been correlated with cellular resistance to chloroethylnitrosoureas. Only BTRC-19, a clone of the 9L line, had significant levels of alkyltransferase activity and exhibited a relatively flat age-response curve to BCNU. Alkyltransferase activity was not detected in the other 3 cell lines, all of which displayed a similar age response in which G1- and G2/M-phase cells were relatively sensitive to BCNU compared with the response of S-phase cells. We conclude that alkyltransferase activity may overwhelm other determinants that cause cell-cycle phase specificity to BCNU.
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pubmed:grant | |
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:issn |
0893-2751
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
183-6
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:3352762-Animals,
pubmed-meshheading:3352762-Carmustine,
pubmed-meshheading:3352762-Cell Cycle,
pubmed-meshheading:3352762-Cell Survival,
pubmed-meshheading:3352762-Cells, Cultured,
pubmed-meshheading:3352762-DNA Repair,
pubmed-meshheading:3352762-Drug Resistance,
pubmed-meshheading:3352762-Methyltransferases,
pubmed-meshheading:3352762-O(6)-Methylguanine-DNA Methyltransferase,
pubmed-meshheading:3352762-Rats
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pubmed:year |
1988
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pubmed:articleTitle |
Cell-cycle, phase-specific cell killing by carmustine in sensitive and resistant cells.
|
pubmed:affiliation |
Department of Neurological Surgery, University of California, San Francisco 94143-0520.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
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