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All rights reserved. http://resource.belframework.org/belframework/1.0/knowledge/large_corpus.bel http://purl.org/dc/elements/1.1/title BEL Framework Large Corpus Document http://resource.belframework.org/belframework/1.0/knowledge/large_corpus.bel http://purl.org/pav/authoredBy http://www.tkuhn.ch/bel2nanopub/RATeX497GWoQaLe9NYO71bk8AtgFQ_r0nLaI0ymZYPyuw#_4 http://resource.belframework.org/belframework/1.0/knowledge/large_corpus.bel http://purl.org/pav/version 1.4 http://www.tkuhn.ch/bel2nanopub/RATeX497GWoQaLe9NYO71bk8AtgFQ_r0nLaI0ymZYPyuw#_3 http://www.w3.org/ns/prov#value The profound effects of 17beta-estradiol on cell growth, differentiation, and general homeostasis of the reproductive and other systems, are mediated mostly by regulation of temporal and cell type-specific expression of different genes. In order to understand better the molecular events associated with the activation of the estrogen receptor (ER), we have used microarray technology to determine the transcriptional program and dose-response characteristics of exposure to a potent synthetic estrogen, 17 alpha-ethynyl estradiol (EE), during prepubertal development. Changes in patterns of gene expression were determined in the immature uterus and ovaries of Sprague-Dawley rats on postnatal day (PND) 24, 24 h after exposure to EE, at 0.001, 0.01, 0.1, 1 and 10 micro g EE/kg/day (sc), for four days (dosing from PND 20 to 23). The transcript profiles were compared between treatment groups and controls using oligonucleotide arrays to determine the expression level of approximately 7000 annotated rat genes and over 1740 expressed sequence tags (ESTs). Quantification of the number of genes whose expression was modified by the treatment, for each of the various doses of EE tested, showed clear evidence of a dose-dependent treatment effect that follows a monotonic response, concordant with the dose-response pattern of uterine wet-weight gain and luminal epithelial cell height. The number of genes whose expression is affected by EE exposure increases according to dose. At the highest dose tested of EE, we determined that the expression level of over 300 genes was modified significantly (p dose-dependent analysis of the transcript profile revealed a set of 88 genes whose expression is significantly and reproducibly modified (increased or decreased) by EE exposure (p demonstrate that, exposure to a potent estrogenic chemical during prepubertal maturation changes the gene expression profile of estrogen-sensitive tissues. Furthermore, the products of the EE-regulated genes identified in these tissues have a physiological role in different intracellular pathways, information that will be valuable to determine the mechanism of action of estrogens. Moreover, those genes could be used as biomarkers to identify chemicals with estrogenic activity. http://www.tkuhn.ch/bel2nanopub/RATeX497GWoQaLe9NYO71bk8AtgFQ_r0nLaI0ymZYPyuw#_3 http://www.w3.org/ns/prov#wasQuotedFrom http://www.ncbi.nlm.nih.gov/pubmed/12655037 http://www.tkuhn.ch/bel2nanopub/RATeX497GWoQaLe9NYO71bk8AtgFQ_r0nLaI0ymZYPyuw#_4 http://www.w3.org/2000/01/rdf-schema#label Selventa http://www.tkuhn.ch/bel2nanopub/RATeX497GWoQaLe9NYO71bk8AtgFQ_r0nLaI0ymZYPyuw#assertion http://www.w3.org/ns/prov#hadPrimarySource http://www.ncbi.nlm.nih.gov/pubmed/12655037 http://www.tkuhn.ch/bel2nanopub/RATeX497GWoQaLe9NYO71bk8AtgFQ_r0nLaI0ymZYPyuw#assertion http://www.w3.org/ns/prov#wasDerivedFrom http://resource.belframework.org/belframework/1.0/knowledge/large_corpus.bel http://www.tkuhn.ch/bel2nanopub/RATeX497GWoQaLe9NYO71bk8AtgFQ_r0nLaI0ymZYPyuw#assertion http://www.w3.org/ns/prov#wasDerivedFrom http://www.tkuhn.ch/bel2nanopub/RATeX497GWoQaLe9NYO71bk8AtgFQ_r0nLaI0ymZYPyuw#_3 http://www.tkuhn.ch/bel2nanopub/RATeX497GWoQaLe9NYO71bk8AtgFQ_r0nLaI0ymZYPyuw#pubinfo http://www.tkuhn.ch/bel2nanopub/RATeX497GWoQaLe9NYO71bk8AtgFQ_r0nLaI0ymZYPyuw http://purl.org/dc/terms/created 2014-07-03T14:30:11.359+02:00 http://www.tkuhn.ch/bel2nanopub/RATeX497GWoQaLe9NYO71bk8AtgFQ_r0nLaI0ymZYPyuw http://purl.org/pav/createdBy http://orcid.org/0000-0001-6818-334X http://www.tkuhn.ch/bel2nanopub/RATeX497GWoQaLe9NYO71bk8AtgFQ_r0nLaI0ymZYPyuw http://purl.org/pav/createdBy http://orcid.org/0000-0002-1267-0234