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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
10
pubmed:dateCreated
2006-9-29
pubmed:abstractText
Liver parenchymal cells play a dominant role in hepatic metabolism and thereby total body cholesterol homeostasis. To gain insight into the specific pathways and genes involved in the response of liver parenchymal cells to increased dietary lipid levels under atherogenic conditions, changes in parenchymal cell gene expression upon feeding a Western-type diet for 0, 2, 4, and 6 weeks were determined using microarray analysis in LDL receptor-deficient mice, an established atherosclerotic animal model. Using ABI Mouse Genome Survey Arrays, we were able to detect 7,507 genes (28% of the total number on an array) that were expressed in parenchymal cells isolated from livers of LDL receptor-deficient mice at every time point investigated. Time-dependent gene expression profiling identified fatty acid binding protein 5 (FABP5) and four novel FABP5-like transcripts located on chromosomes 2, 8, and 18 as important proteins in the primary response of liver parenchymal cells to Western-type diet feeding, because their expression was 16- to 22-fold increased within the first 2 weeks on the Western-type diet. The rapid substantial increase in gene expression suggests that these FABPs may play an important role in the primary protection against the cellular toxicity of cholesterol, free fatty acids, and/or lipid oxidants. Furthermore, as a secondary response to the Western-type diet, liver parenchymal cells of LDL receptor-deficient mice stimulated glycolysis and lipogenesis pathways, resulting in a steady, more atherogenic serum lipoprotein profile (increased VLDL/LDL).
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0022-2275
pubmed:author
pubmed:issnType
Print
pubmed:volume
47
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2198-207
pubmed:meshHeading
pubmed:year
2006
pubmed:articleTitle
Microarray analysis indicates an important role for FABP5 and putative novel FABPs on a Western-type diet.
pubmed:affiliation
Division of Biopharmaceutics, Leiden/Amsterdam Center for Drug Research, Gorlaeus Laboratories, Leiden University, 2300 RA Leiden, The Netherlands. hoekstra@lacdr.leidenuniv.nl
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't