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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1990-2-27
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pubmed:abstractText |
Cholesteryl ester laden foam cells in atherosclerotic lesions derive, in part, from macrophages. Mobilization of stored cholesteryl esters involves hydrolysis by a neutral cholesteryl ester hydrolase. Incubation of intact P388D1 macrophages with dibutyryl cAMP in the presence of 1-methyl-3-isobutylxanthine resulted in a dose-dependent increase in neutral cholesteryl ester hydrolase activity of up to 50% (ED50 = 0.1 mM). Incubation with prostaglandin E1 in the presence of 1-methyl-3-isobutylxanthine also increased neutral cholesterol ester hydrolase activity by about 50%. In cell-free preparation, cAMP-dependent protein kinase caused about a 2-fold activation of the neutral cholesteryl ester hydrolase. Activation was blocked by protein kinase inhibitor. These data suggest that the P388D1 macrophage may be a useful model for studying the hormonal regulation of cholesteryl ester mobilization in macrophage-derived foam 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 |
http://linkedlifedata.com/resource/pubmed/chemical/Alprostadil,
http://linkedlifedata.com/resource/pubmed/chemical/Bucladesine,
http://linkedlifedata.com/resource/pubmed/chemical/Carboxylic Ester Hydrolases,
http://linkedlifedata.com/resource/pubmed/chemical/Cyclic AMP,
http://linkedlifedata.com/resource/pubmed/chemical/Protein Kinase Inhibitors,
http://linkedlifedata.com/resource/pubmed/chemical/Sterol Esterase
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pubmed:status |
MEDLINE
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pubmed:month |
Jan
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pubmed:issn |
0006-3002
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
16
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pubmed:volume |
1042
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
132-7
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pubmed:dateRevised |
2007-11-15
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pubmed:meshHeading |
pubmed-meshheading:2153410-Alprostadil,
pubmed-meshheading:2153410-Animals,
pubmed-meshheading:2153410-Bucladesine,
pubmed-meshheading:2153410-Carboxylic Ester Hydrolases,
pubmed-meshheading:2153410-Cyclic AMP,
pubmed-meshheading:2153410-Enzyme Activation,
pubmed-meshheading:2153410-Macrophages,
pubmed-meshheading:2153410-Mice,
pubmed-meshheading:2153410-Protein Kinase Inhibitors,
pubmed-meshheading:2153410-Sterol Esterase,
pubmed-meshheading:2153410-Tumor Cells, Cultured
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pubmed:year |
1990
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pubmed:articleTitle |
Stimulation of a neutral cholesteryl ester hydrolase by cAMP system in P388D1 macrophages.
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pubmed:affiliation |
Department of Medicine, University of California, San Diego, La Jolla.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
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