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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
5
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pubmed:dateCreated |
1994-10-5
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pubmed:abstractText |
We investigated the molecular mechanisms by which TSH, insulin and IGF-1 modulate the glucose transport system in FRTL5 cells. We found that TSH, insulin and IGF-1 increased the glucose transporter Glut-1 specific mRNA levels 6, 8 and 5 fold over control, respectively. The effect on Glut-1 mRNA was evident after 2 hours, followed by an increased Glut-1 protein expression in whole cells, as judged by western blot analysis, after 5 hours of stimulation with all the hormones studied. In contrast, plasma membrane Glut-1 increased (300-400% over control) after 2 hours of stimulation with TSH (10 mU/ml), dibutyryl-cAMP (1mM), IGF-1 (10 ng/ml) and insulin (10 nM). These data indicate that the glucose transport system is under multihormonal control in FRTL5 cells. Two different mechanisms are involved in TSH, IGF-1 and insulin stimulation of the glucose transport: a) neosynthesis of Glut-1 by activation of gene expression; b) recruitment of carriers from the intracellular pool to the plasma membrane.
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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/Glucose,
http://linkedlifedata.com/resource/pubmed/chemical/Glucose Transporter Type 1,
http://linkedlifedata.com/resource/pubmed/chemical/Insulin,
http://linkedlifedata.com/resource/pubmed/chemical/Insulin-Like Growth Factor I,
http://linkedlifedata.com/resource/pubmed/chemical/Monosaccharide Transport Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/RNA, Messenger,
http://linkedlifedata.com/resource/pubmed/chemical/Slc2a1 protein, rat,
http://linkedlifedata.com/resource/pubmed/chemical/Thyrotropin
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pubmed:status |
MEDLINE
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pubmed:month |
May
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pubmed:issn |
0391-4097
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
17
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
323-7
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pubmed:dateRevised |
2011-11-17
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pubmed:meshHeading |
pubmed-meshheading:8077615-Animals,
pubmed-meshheading:8077615-Cell Line,
pubmed-meshheading:8077615-Glucose,
pubmed-meshheading:8077615-Glucose Transporter Type 1,
pubmed-meshheading:8077615-Insulin,
pubmed-meshheading:8077615-Insulin-Like Growth Factor I,
pubmed-meshheading:8077615-Monosaccharide Transport Proteins,
pubmed-meshheading:8077615-RNA, Messenger,
pubmed-meshheading:8077615-Rats,
pubmed-meshheading:8077615-Thyroid Gland,
pubmed-meshheading:8077615-Thyrotropin
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pubmed:year |
1994
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pubmed:articleTitle |
Different molecular mechanisms are involved in the multihormonal control of glucose transport in FRTL5 rat thyroid cells.
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pubmed:affiliation |
Dipartimento di Medicina Clinica e Sperimentale, Cattedra di Endocrinologia, University of Reggio Calabria, Catanzaro, Italy.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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