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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
10
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pubmed:dateCreated |
1989-1-23
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pubmed:abstractText |
A murine monoclonal antibody (MAb) specific to adriamycin-resistant K-562 (K-562/ADM) cells, MRK20, was found to react strongly with an 85-kDa protein present in K-562/ADM and adriamycin-resistant ovarian cancer (2780AD) cells. This protein was present at only very low levels in parental cells (K-562 and A2780), methotrexate-resistant K-562 cells (K-562/MTX3, K-562/MTX4 and K-562/MTX5) and cisplatin-resistant ovarian cells (KFr). Immunoelectron microscopically, the protein was found to be located on the cell membrane of K-562/ADM and 2780AD cells. Furthermore, the presence of the protein in various cell lines, normal tissues and surgical materials from patients given no anti-cancer agents was examined by immunocytochemistry and flow cytometry. MRK20 reacted with granulocytes, monocytes and endothelial cells in various tissues, but did not react with tissue macrophages. This 85-kDa protein recognized by MRK20 seems to be the second multidrug-resistance gene-encoded product appearing in adriamycin-resistant cancer cells, following the characterization of 170-180-kDa glycoprotein, and may be important for elucidating the multidrug-resistance mechanism relevant to adrimycin and Vinca alkaloids.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Antibodies, Monoclonal,
http://linkedlifedata.com/resource/pubmed/chemical/Doxorubicin,
http://linkedlifedata.com/resource/pubmed/chemical/Membrane Glycoproteins,
http://linkedlifedata.com/resource/pubmed/chemical/Neoplasm Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/P-Glycoprotein
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pubmed:status |
MEDLINE
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pubmed:month |
Oct
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pubmed:issn |
0910-5050
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
79
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1101-10
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pubmed:dateRevised |
2003-11-14
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pubmed:meshHeading |
pubmed-meshheading:2904427-Animals,
pubmed-meshheading:2904427-Antibodies, Monoclonal,
pubmed-meshheading:2904427-Doxorubicin,
pubmed-meshheading:2904427-Drug Resistance,
pubmed-meshheading:2904427-Endothelium,
pubmed-meshheading:2904427-Immunoblotting,
pubmed-meshheading:2904427-Leukemia, Myeloid,
pubmed-meshheading:2904427-Leukocytes, Mononuclear,
pubmed-meshheading:2904427-Membrane Glycoproteins,
pubmed-meshheading:2904427-Mice,
pubmed-meshheading:2904427-Neoplasm Proteins,
pubmed-meshheading:2904427-P-Glycoprotein,
pubmed-meshheading:2904427-Tumor Cells, Cultured
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pubmed:year |
1988
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pubmed:articleTitle |
Cellular and tissue distribution of MRK20 murine monoclonal antibody-defined 85-kDa protein in adriamycin-resistant cancer cell lines.
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pubmed:affiliation |
Department of Pathology, University of Tokyo.
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pubmed:publicationType |
Journal Article
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