Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2003-8-29
pubmed:abstractText
The mRNA expression profile in control and clofibric acid (CLO)-treated mouse, rat, and human hepatocytes was analyzed using species-specific oligonucleotide DNA microarrays (Affymetrix). A statistical empirical Bayes procedure was applied in order to select the significantly differentially expressed genes. Treatment with the peroxisome proliferator CLO induced up-regulation of genes involved in peroxisome proliferation and in cell proliferation as well as down-regulation of genes involved in apoptosis in hepatocytes of rodent but not of human origin. CLO treatment induced up-regulation of microsomal cytochrome P450 4a genes in rodent hepatocytes and in two of six human hepatocyte cultures. In addition, genes encoding phenobarbital-inducible cytochrome P450s were also up-regulated by CLO in rodent and human hepatocyte cultures. Up-regulation of phenobarbital-inducible UDP-glucuronosyl-transferase genes by CLO was observed in both rat and human but not in mouse hepatocytes. CLO treatment induced up-regulation of L-fatty acid binding protein (L-FABP) gene in hepatocytes of both rodent and human origin. However, while genes of the cytosolic, microsomal, and mitochondrial pathways involved in fatty acid transport and metabolism were up-regulated by CLO in both rodent and human hepatocyte cultures, genes of the peroxisomal pathway of lipid metabolism were up-regulated in rodents only. An up-regulation of hepatocyte nuclear factor 1alpha (HNF1alpha) by CLO was observed only in human hepatocyte cultures, suggesting that this trans-activating factor may play a key role in the regulation of fatty acid metabolism in human liver as well as in the nonresponsiveness of human liver to CLO-induced regulation of cell proliferation and apoptosis.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0041-008X
pubmed:author
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
191
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
130-46
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed-meshheading:12946649-Aged, pubmed-meshheading:12946649-Animals, pubmed-meshheading:12946649-Apoptosis, pubmed-meshheading:12946649-Biological Transport, pubmed-meshheading:12946649-Cell Membrane, pubmed-meshheading:12946649-Clofibric Acid, pubmed-meshheading:12946649-Down-Regulation, pubmed-meshheading:12946649-Fatty Acids, pubmed-meshheading:12946649-Female, pubmed-meshheading:12946649-Gene Expression Regulation, pubmed-meshheading:12946649-Hepatocytes, pubmed-meshheading:12946649-Humans, pubmed-meshheading:12946649-Hypolipidemic Agents, pubmed-meshheading:12946649-Male, pubmed-meshheading:12946649-Mice, pubmed-meshheading:12946649-Middle Aged, pubmed-meshheading:12946649-Oligonucleotide Array Sequence Analysis, pubmed-meshheading:12946649-RNA, Messenger, pubmed-meshheading:12946649-Rats, pubmed-meshheading:12946649-Species Specificity, pubmed-meshheading:12946649-Up-Regulation
pubmed:year
2003
pubmed:articleTitle
Effects of clofibric acid on mRNA expression profiles in primary cultures of rat, mouse and human hepatocytes.
pubmed:affiliation
Laboratoire de Biologie Cellulaire, UFR SMP, 4, place Saint-Jacques, 25030 Besançon, France. lysiane.richert@univ-fcomte.fr
pubmed:publicationType
Journal Article, In Vitro