rdf:type |
|
lifeskim:mentions |
|
pubmed:issue |
3
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pubmed:dateCreated |
1993-8-5
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pubmed:abstractText |
Retinoic acid (RA) and estrogen modulation of insulin like-growth factor binding protein-4 (IGFBP-4) gene expression was investigated in a number of human breast carcinoma (HBC) cell lines. Our results indicate that RA and/or estrogen modulation of IGFBP-4 mRNA levels appear to correlate with the ER-status of HBC cell lines. RA and estrogen enhanced IGFBP-4 mRNA levels in ER-positive MCF-7, RRO-I and ZR-75 cell lines and the effect of both of these agents in combination was additive. Although both individually also enhanced IGFBP-4 mRNA levels in ER-positive T47D cells, their effect in combination was antagonistic in this cell line. Transfection of human ER into ER-negative MDA-MB-231 cells conferred RA and estrogen the ability to enhance IGFBP-4 mRNA but both agents failed to concomitantly modulate IGFBP-4 levels in the CM suggesting a dual regulation by these agents at transcription/post-transcription and translation/secretion levels.
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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/Carrier Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/Estrogens,
http://linkedlifedata.com/resource/pubmed/chemical/Insulin-Like Growth Factor Binding...,
http://linkedlifedata.com/resource/pubmed/chemical/Poly A,
http://linkedlifedata.com/resource/pubmed/chemical/RNA,
http://linkedlifedata.com/resource/pubmed/chemical/RNA, Messenger,
http://linkedlifedata.com/resource/pubmed/chemical/Receptors, Estrogen,
http://linkedlifedata.com/resource/pubmed/chemical/Recombinant Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/Tretinoin
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pubmed:status |
MEDLINE
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pubmed:month |
Jun
|
pubmed:issn |
0006-291X
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pubmed:author |
|
pubmed:issnType |
Print
|
pubmed:day |
30
|
pubmed:volume |
193
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
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pubmed:pagination |
1232-8
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:7686749-Blotting, Northern,
pubmed-meshheading:7686749-Breast Neoplasms,
pubmed-meshheading:7686749-Carrier Proteins,
pubmed-meshheading:7686749-Estrogens,
pubmed-meshheading:7686749-Female,
pubmed-meshheading:7686749-Gene Expression,
pubmed-meshheading:7686749-Humans,
pubmed-meshheading:7686749-Insulin-Like Growth Factor Binding Protein 4,
pubmed-meshheading:7686749-Poly A,
pubmed-meshheading:7686749-RNA,
pubmed-meshheading:7686749-RNA, Messenger,
pubmed-meshheading:7686749-Receptors, Estrogen,
pubmed-meshheading:7686749-Recombinant Proteins,
pubmed-meshheading:7686749-Transfection,
pubmed-meshheading:7686749-Tretinoin,
pubmed-meshheading:7686749-Tumor Cells, Cultured
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pubmed:year |
1993
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pubmed:articleTitle |
Retinoic acid and estrogen modulation of insulin-like growth factor binding protein-4 gene expression and the estrogen receptor status of human breast carcinoma cells.
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pubmed:affiliation |
Department of Medicine, University of Maryland School of Medicine, Baltimore.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, Non-P.H.S.
|