PMID: 22354286Feb 23, 2012Paper

Expression profile of early estradiol-responsive genes in cynomolgus macaque liver: implications for drug-metabolizing enzymes

Drug Metabolism and Pharmacokinetics
Ryota IseYasuhiro Uno

Abstract

Estrogen plays important roles in estrogen-responsive tissues, such as mammary glands, ovaries, and the uterus. In the liver, the major drug metabolizing organ, estrogen is known to regulate expression of some drug-metabolizing enzymes. Due to the lack of information on the role of estrogen in hepatic gene expression in primate species, we previously investigated the late response of hepatic gene expression to estradiol in cynomolgus macaques. To understand the early response of hepatic gene expression to estradiol, in this study, microarray analysis was conducted using cynomolgus macaque liver samples collected at 1 h and 5 h after estradiol injection. Comparison of expression profiles in estradiol and solvent (control)-treated ovariectomized cynomolgus macaques revealed 27 differentially expressed genes (>2.0-fold), including 18 at 1 h and 9 at 5 h after estradiol injection. As indicated by Gene Ontology analysis, these genes were related to oxidoreductase activity and transferase activity, partly representing important aspects of drug-metabolizing enzymes. Further analysis by quantitative polymerase chain reaction revealed that estradiol down-regulated CYP2A24, CYP2C76, and CYP2E1 (>2.0-fold) at 1 h and up-regulated GSTM5 (>...Continue Reading

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Citations

Apr 9, 2014·Nature Reviews. Genetics·Jeffrey Rogers, Richard A Gibbs

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