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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3
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pubmed:dateCreated |
1989-7-27
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pubmed:abstractText |
Tumors produced by a chemically transformed rat liver epithelial (RLE) cell line and its single cell-derived clonal subpopulations demonstrate wide-ranging morphological presentations including carcinomas, sarcomas, "mixed epithelial-mesenchymal" tumors, and undifferentiated tumors [Am J Pathol 127:168-181, 1987]. To address the question of heterogeneity of tumors derived from transformed RLE cells, we have used recombinant retroviruses containing the following transforming oncogenes: v-raf (3611-MSV), v-raflv-myc (J2), v-myc (J5), and v-Ha-ras (pRNR16). All of the oncogenes, with the exception of v-myc (J5), were efficient transforming agents in the RLE cells. Tumors derived from the v-raf- and, to a lesser extent, those from v-Ha-ras-transformed RLE cells showed mixed epithelial-mesenchymal morphology, whereas the combination of v-raflv-myc (J2) consistently produced differentiated trabecular carcinomas. These data suggest that the lineage commitment of the RLE cells can be perturbed by a single transforming oncogene and that different tumor types derived from these cells may reflect the expression of a selective oncogene or a combination of oncogenes.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:status |
MEDLINE
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pubmed:issn |
0899-1987
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
1
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
189-95
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pubmed:dateRevised |
2003-11-14
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pubmed:meshHeading |
pubmed-meshheading:3074814-Animals,
pubmed-meshheading:3074814-Cell Transformation, Neoplastic,
pubmed-meshheading:3074814-Cell Transformation, Viral,
pubmed-meshheading:3074814-Epithelial Cells,
pubmed-meshheading:3074814-Gene Expression Regulation,
pubmed-meshheading:3074814-Genes, Regulator,
pubmed-meshheading:3074814-Genes, Switch,
pubmed-meshheading:3074814-Genes, ras,
pubmed-meshheading:3074814-Liver,
pubmed-meshheading:3074814-Oncogenes,
pubmed-meshheading:3074814-Rats,
pubmed-meshheading:3074814-Tumor Cells, Cultured
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pubmed:year |
1988
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pubmed:articleTitle |
Neoplastic transformation and lineage switching of rat liver epithelial cells by retrovirus-associated oncogenes.
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pubmed:affiliation |
Laboratory of Experimental Carcinogenesis, National Cancer Institute, Bethesda, Maryland 20892.
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pubmed:publicationType |
Journal Article
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