Source:http://linkedlifedata.com/resource/pubmed/id/15062542
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1-2
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pubmed:dateCreated |
2004-4-5
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pubmed:abstractText |
Dexamethasone (Dex) is a potent and long-acting glucocorticoid in terms of anti-inflammatory activity without substantial sodium retaining effect. Here, we examine the ability of the 11beta-hydroxyglucocorticoids Dex and cortisol and their 11-keto forms 11-ketodexamethasone (11-ketoDex) and cortisone to bind to glucocorticoid receptors (GR) and mineralocorticoid receptors (MR) and to mediate nuclear translocation and transactivation of a reporter-gene. Unlike cortisone, the 11-ketosteroid 11-ketoDex acts as a potent GR agonist, comparable to Dex and cortisol. Transactivation of MR by Dex or 11-ketoDex was weak or undetectable, despite efficient binding and induction of nuclear translocation. 11beta-HSD2 protects MR and GR from inappropriate occupation by cortisol; it is, however, unable to prevent activation of GR by 11-ketoDex. The finding that 11-ketoDex is a specific GR agonist may explain the potent glucocorticoid effect of Dex in tissues expressing 11beta-HSD2 including kidney and colon and also in certain tumor cells.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Feb
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pubmed:issn |
0303-7207
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
12
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pubmed:volume |
214
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
27-37
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pubmed:dateRevised |
2008-11-21
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pubmed:meshHeading |
pubmed-meshheading:15062542-Active Transport, Cell Nucleus,
pubmed-meshheading:15062542-Animals,
pubmed-meshheading:15062542-Binding Sites,
pubmed-meshheading:15062542-Cell Line,
pubmed-meshheading:15062542-Dexamethasone,
pubmed-meshheading:15062542-Humans,
pubmed-meshheading:15062542-Hydrocortisone,
pubmed-meshheading:15062542-Ketosteroids,
pubmed-meshheading:15062542-Kinetics,
pubmed-meshheading:15062542-Protein Binding,
pubmed-meshheading:15062542-Receptors, Glucocorticoid,
pubmed-meshheading:15062542-Transcriptional Activation
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pubmed:year |
2004
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pubmed:articleTitle |
The 11-ketosteroid 11-ketodexamethasone is a glucocorticoid receptor agonist.
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pubmed:affiliation |
Department of Clinical Research, University of Berne, Freiburgstrasse 15, 3010 Berne, Switzerland.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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