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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3
|
pubmed:dateCreated |
1988-2-23
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pubmed:abstractText |
The toxicity of doxorubicin metabolites was evaluated on lymphocytes of B-cell chronic lymphocytic leukemia. Only doxorubicinol was found to be cytotoxic for these lymphocytes, whereas exposure to aglycones at concentrations as high as 5 microM for 1 h had no effect on the proliferative capacity of these cells. After exposure of cells to isomolar concentrations of doxorubicin or its metabolites, uptake/retention of doxorubicinol was 23% of doxorubicin, and uptake/retention of aglycones was 5 to 13% of doxorubicin. Seventy to 90% of doxorubicin and 60 to 90% of doxorubicinol taken up/retained by the cells were detected in the cell nuclear fraction, whereas only 20 to 40% of the aglycones were localized in the cell nucleus. Cytotoxicity of metabolites was generally related to the proportion of drug taken up/retained by the cells and localized to the nuclei. The low uptake and nuclear localization may be at least partially responsible for the lack of cytotoxicity of aglycones on B-lymphocytes from chronic lymphocytic leukemia.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
|
pubmed:month |
Feb
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pubmed:issn |
0008-5472
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
1
|
pubmed:volume |
48
|
pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
|
pubmed:pagination |
503-6
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pubmed:dateRevised |
2007-11-15
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pubmed:meshHeading |
pubmed-meshheading:3257165-B-Lymphocytes,
pubmed-meshheading:3257165-Biological Transport,
pubmed-meshheading:3257165-Cell Compartmentation,
pubmed-meshheading:3257165-Cell Nucleus,
pubmed-meshheading:3257165-Doxorubicin,
pubmed-meshheading:3257165-Leukemia, Lymphoid,
pubmed-meshheading:3257165-Tumor Cells, Cultured
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pubmed:year |
1988
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pubmed:articleTitle |
Uptake and intracellular distribution of doxorubicin metabolites in B-lymphocytes of chronic lymphocytic leukemia.
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pubmed:affiliation |
Division of Hematology, Veterans Administration Medical Center, Nashville, Tennessee 37203.
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pubmed:publicationType |
Journal Article,
In Vitro,
Research Support, U.S. Gov't, P.H.S.,
Research Support, U.S. Gov't, Non-P.H.S.
|