Investigation Title Transcription profiling of immature rat uterus ovaries in response to 17-alpha-ethynyl estradiol
Comment[Submitted Name] Evaluation of the gene expression changes induced by 17-alpha-ethynyl estradiol [CAS:57-63-6;CHEBI:4903] in the immature uterus/ovaries of the rat using high density oligonucleotide arrays.
Experimental Design dose_response_design compound_treatment_design transcription profiling by array
Experimental Design Term Source REF mo EFO
Comment[ArrayExpressReleaseDate] 2006-11-14
Comment[AEMIAMESCORE] 4
Comment[ArrayExpressAccession] E-TOXM-20
Comment[MAGETAB TimeStamp_Version] 2010-10-14 15:46:43 Last Changed Rev: 14677
Experimental Factor Name dose time compound vehicle
Experimental Factor Type dose time compound_treatment_design vehicle
Experimental Factor Term Source REF
Person Last Name Naciff
Person First Name Jorge
Person Mid Initials M
Person Email naciff.jm@pg.com
Person Phone (513) 627-1761
Person Fax
Person Address
Person Affiliation Miami Valley Innovation Center, The Procter and Gamble Company
Person Roles submitter
Person Roles Term Source REF
Quality Control Type pooling Technical replicates is one of quality control steps which may be take place Biological replicates is one of quality control steps which may be take place
Quality Control Term Source REF
Replicate Type
Replicate Term Source REF
Normalization Type
Normalization Term Source REF
Date of Experiment
Public Release Date 2006-11-14
PubMed ID
Publication DOI
Publication Author List Naciff JM, Torontali SM, Overmann GI, Carr GJ, Tiesman JP, Daston GP.
Publication Title Evaluation of the gene expression changes induced by 17-alpha-ethynyl estradiol in the immature uterus/ovaries of the rat using high density oligonucleotide arrays.
Publication Status
Publication Status Term Source REF
Experiment Description BACKGROUND: In a previous study, we determined the effects of 17-alpha-ethynyl estradiol (EE) [CAS:57-63-6;CHEBI:4903] on gene expression using microarrays that represented approximately 9,000 genes, which was the state of-the-art. Higher content arrays with almost double the number of genes have since become available. In order to better determine whether common sets of gene expression changes can be predictive of estrogenic activity, we have replicated the previous experiment using the more comprehensive microarray. METHODS: Immature 20-day-old Sprague-Dawley rats were exposed to 0.1, 1, and 10 microg EE/kg/day ( subcutaneously [s.c.]), for four days, dosing from postnatal day (PND) 20-23). Changes in a more comprehensive expression level of 15,923 rat annotated genes and expressed sequence tags were evaluated on PND 24. RESULTS: By comparing the response of the treatment groups versus controls using various statistical parameters, we determined that the expression of 1,394 genes showed a significant change with respect to control (p less than or =0.0001), to at least one of the EE dosages. The tissues from animals exposed to 0.1 microg EE/kg/day showed changes in the expression of only 33 genes, whereas when they were exposed to 1 or 10 microg EE/kg/day, the expression of 409 and 548 genes was modified, respectively. A dose-dependent analysis indicated that 592 genes showed a robust and significant response to EE exposure (increased or decreased). Our analysis confirmed the regulation of previously identified estrogen-sensitive genes, and clearly identified novel mediators of estrogen actions, both in the uterus as well as in the ovary. CONCLUSIONS: This compendium of genes represents the largest compilation of estrogen-responsive genes that has ever been identified for the immature uterus and ovary of any species, and can be used to generate testable hypothesis to improve the understanding of the molecular pathways associated with physiological and pathophysiological responses to exposure to chemicals with estrogenic properties.
Protocol Name P-TOXM-357 P-TOXM-243 P-TOXM-244 P-TOXM-245 P-TOXM-247 P-TOXM-246
Protocol Type grow nucleic_acid_extraction labeling hybridization feature_extraction image_acquisition
Protocol Description -Acclimatization:
5 days.
-Diet:
Purina Mills Rodent Standard Diet 5001.
-Housing:
-cage type:No data available.Animal cages, racks and cage mats were changed regularly, and the animal room was cleaned on a regular basis.
-temperature:No data available.
-humidity: 30-70%.
-light cycle: 12hr/12hr day/night cycle.
-population density: 1 animal per cage .
-Legal Notice:
Animal protocols were approved by our Institutional Animal Care and Use Committee.
Total RNA from liver was isolated with RNA STAT-60 (Tel-Test) according to the manufacturerÂ’s protocol. Default Affymetrix Labelling protocol Default Affymetrix Hybridization protocol Default Affymetrix FeatureExtraction Protocol Default Scanning Protocol
Protocol Parameters Amplification Kit;Amount of starting material;RNA Quality Control;Amount of RNA for amplification; Amount of nucleic acid labeled;Label used;Amplification rounds; Hybridization Chamber Type;Hybridization Temperature;Amount of labeled target;
Protocol Hardware Scanning hardware Scanning hardware
Protocol Software MAS 5.0 software MAS 5.0 software
Protocol Contact
Protocol Term Source REF
SDRF File E-TOXM-20.sdrf.txt
Term Source Name mo The MGED Ontology ArrayExpress NCI_thesaurus mo EFO
Term Source File http://mged.sourceforge.net/ontologies/MGEDontology.php http://mged.sourceforge.net/ontologies/MGEDontology.php http://www.ebi.ac.uk/arrayexpress ncithesaurus.obo.alt http://mged.sourceforge.net/ontologies/MGEDontology.php http://www.ebi.ac.uk/efo/
Term Source Version