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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:dateCreated |
1994-2-16
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pubmed:abstractText |
A subline (PC-9/VCR) of the human lung adenocarcinoma cell line (PC-9), derived by in vitro exposure to vincristine (VCR), exhibited a 10-12-fold resistance to VCR by MTT and HTCA assay. Compared to the parental cell line (PC-9), PC-9/VCR-resistant cells displayed a reduced accumulation of VCR. The rate of VCR efflux was shown to be enhanced by PC-9/VCR. Unlike multidrug resistance, this efflux was independent of P-glycoprotein overexpression as determined by the Northern blotting method. In addition, PC-9/VCR showed no collateral sensitivity to verapamil. This resistant subline only showed 6.9-fold and 2.5-fold cross resistance to colchicine and vinblastine, respectively. This preliminary result indicates that defective drug accumulation in PC-9/VCR is due to other mechanisms possibly involving the microtubule assembly.
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pubmed:language |
chi
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Jun
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pubmed:issn |
0929-6646
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
92 Suppl 2
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
S69-75
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:7904199-Adenocarcinoma,
pubmed-meshheading:7904199-Carrier Proteins,
pubmed-meshheading:7904199-Drug Resistance,
pubmed-meshheading:7904199-Humans,
pubmed-meshheading:7904199-Lung Neoplasms,
pubmed-meshheading:7904199-Membrane Glycoproteins,
pubmed-meshheading:7904199-P-Glycoprotein,
pubmed-meshheading:7904199-Tumor Cells, Cultured,
pubmed-meshheading:7904199-Vincristine
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pubmed:year |
1993
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pubmed:articleTitle |
[The efflux of intracellular vincristine in drug-resistant human lung cancer cells is not mediated by P-glycoprotein].
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pubmed:affiliation |
Department of Biology, Tunghai University, Taichung, Taiwan, R.O.C.
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pubmed:publicationType |
Journal Article,
English Abstract
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