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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
8
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pubmed:dateCreated |
1989-9-18
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pubmed:abstractText |
Previous studies have demonstrated the presence of high-affinity, glucocorticoid-specific receptors in explants of human outflow tissue and in cultured trabecular meshwork. Glucocorticoid-induced responses of scleral fibroblasts and trabecular meshwork cells were evaluated in this study. Incubation of human trabecular meshwork (HTM) and scleral fibroblast (HS) cells with 10(-7) M dexamethasone (DEX) results in a 60% inhibition of prostaglandin production. The effects of glucocorticoid treatment on cellular and secreted proteins using [35S] methionine incorporation were evaluated. Treatment of HTM cells cultured from two normal individuals with DEX induced the expression of [35S] methionine-labelled cellular proteins of 35, 65 and 70 kD, and secreted proteins of 40, 90 and 100 kD. Under the same experimental conditions, a 70 kD molecular weight cellular protein was induced in the HS cells. There were no apparent DEX-induced alterations in HS-secreted proteins. Since a functional common response to glucocorticoid treatment in both HS and HTM cells was inhibition of prostaglandin production, the dexamethasone-induced expression of the 70 kD protein in these cells may be related to this effect. Further studies are required to elucidate specific roles of the steroid-induced proteins in the effects of glucocorticoids on HTM and HS cells.
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pubmed:grant | |
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 |
Aug
|
pubmed:issn |
0146-0404
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pubmed:author | |
pubmed:issnType |
Print
|
pubmed:volume |
30
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1843-7
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:2759798-Cells, Cultured,
pubmed-meshheading:2759798-Dexamethasone,
pubmed-meshheading:2759798-Electrophoresis, Gel, Two-Dimensional,
pubmed-meshheading:2759798-Eye Proteins,
pubmed-meshheading:2759798-Fibroblasts,
pubmed-meshheading:2759798-Humans,
pubmed-meshheading:2759798-Prostaglandins E,
pubmed-meshheading:2759798-Prostaglandins F,
pubmed-meshheading:2759798-Radioimmunoassay,
pubmed-meshheading:2759798-Sclera,
pubmed-meshheading:2759798-Time Factors,
pubmed-meshheading:2759798-Trabecular Meshwork
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pubmed:year |
1989
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pubmed:articleTitle |
Dexamethasone induces specific proteins in human trabecular meshwork cells.
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pubmed:affiliation |
Department of Physiology, New York Medical College, Valhalla 10595.
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pubmed:publicationType |
Journal Article,
Comparative Study,
Research Support, U.S. Gov't, P.H.S.
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