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Global survey of miRNA microarray of uterus, ovariectomized female mice with or without estrogen (E2) treatment

ABSTRACT: To examine the effect of E2 treatment for the miRNA expression, at 15 week old, female wiled type mice were ovariectomized, and after one week, estradiol (E2) was delivered at a concentration of 0.050 mg/kg body weight/day. 24 hours after chemical treatment, uteruses from mice treated with or without E2 were dissected.

ORGANISM(S): Mus musculus Rattus norvegicus Homo sapiens

PROVIDER: GSE13858 | GEO | 2009/07/22

SECONDARY ACCESSION(S): PRJNA114595

REPOSITORIES: GEO

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Global survey of miRNA microarray of uterus, ovariectomized female mice with or without estrogen (E2) treatment

Project description:To examine the effect of E2 treatment for the miRNA expression, at 15 week old, female wiled type mice were ovariectomized, and after one week, estradiol (E2) was delivered at a concentration of 0.050 mg/kg body weight/day. 24 hours after chemical treatment, uteruses from mice treated with or without E2 were dissected. Two group experiment (WT-OVX and WT-OVX-E2) three replicates per condition

2010-06-24 | E-GEOD-13858 | biostudies-arrayexpress

Estradiol Induced Transcriptional Profile of EAAE DNA Binding Deficient ERa Uterus

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Transcription profiling of uteri from gonadectomized C57BL/6 mice injected with 17-Estradiol (E2) to identify genes modulated by a physiological dose of E2 in uterus.

Project description:17Ã-Estradiol (E2) is well known to be associated with uterine cancer, endometriosis, and leiomyomas. Although insulin-like growth factor I (IGF-I) has been identified as a mediator of the uterotrophic effect of E2 in several studies, this mechanism is still not well understood. In the present study, identification of the genes modulated by a physiological dose of E2, in the uterus, has been done in ovariectomized mice using Affymetrix microarrays. The E2-induced genomic profile shows that multiple genes belonging to the IGF-I pathway are affected after exposure to E2. Two phases of regulation could be identified. First, from 0 to 6 h, the expression of genes involved in the cell cycle, growth factors, protein tyrosine phosphatases, and MAPK phosphatases is quickly upregulated by E2, while IGF-I receptor and several genes of the MAPK and phosphatidylinositol 3-kinase pathways are downregulated. Later, i.e., from 6 to 24 h, transporters and peptidases/proteases are stimulated, whereas defense-related genes are differentially regulated by E2. Finally, cytoarchitectural genes are modulated later. The present data show that a physiological dose of E2 induces, within 24 h, a series of transcriptional events that promote the uterotrophic effect. Among these, the E2-mediated activation of the IGF-I pathway seems to play a pivotal role in the uterotrophic effect. Furthermore, the protein tyrosine phosphatases and MAPK phosphatases are likely to modulate the estrogenic uterotrophic action by targeting, at different steps, the IGF-I pathway. Experiment Overall Design: Ten 10-11 weeks old C57Bl/6 mice were gonadectomized under isoflurane-induced anesthesia and sacrified seven days after GDX. Mice were injected s.c with E2 (0.05ug/mice) or vehicle, at 0.5, 1, 3, 6, 12 or 24 h before sacrifice. Uteri was removed and pooled before total RNA extraction. Samples was hybridized to U74Av2 Genechips (Affymetrix).

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Global survey of miRNA profiles in the uterus and an estrogen receptor alpha knockout embryo

Project description:This SuperSeries is composed of the following subset Series: GSE13858: Global survey of miRNA microarray of uterus, ovariectomized female mice with or without estrogen (E2) treatment GSE13859: Global survey of miRNA microarray of whole embryo, wild type vs estrogen receptor alpha knockout mice Refer to individual Series

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Project description:Using microarray technology, we compared the global expression pattern of uterine RNA from ovariectomized control mice to those of ovariectomized mice treated with estradiol for various intervals between 30 minutes and 24 hours. Keywords: estrogen, uterus, genomic, mouse

2006-04-14 | GSE4664 | GEO

Project description:Immature (19/20 days of age) Alpk:APfCD-1 mice were treated with arachis oil (AO) vehicle, 0.4mg/kg 17beta-estradiol (E2), or 250mg/kg genistein (GEN), via a single subcutaneous injection, and sacrificed at 1hr, 2hr, 4hr, 8hr, 24hr, 48hr, 72hr post dose. Keywords: other

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