GEO DataSets

(Submitter supplied) 17β-HSD1 expression modulates T47D transcript profile in in steroid-deprived medium. The enzyme specifically regulates apoptosis and cancer-related genes in T47D cells cultured in steroid-deprived medium. Genes that primarily involved in Cell cycle progression, such as the Cyclin A2 gene, CCNA2, are generally down-regulated whereas most genes involved in apoptosis and cell death, such as the proapoptotic gene XAF1 and FGF12, are on the contrary up-regulated by 17β-HSD1 knockdown, and 21% of the modulated genes belong to this latter functional category. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL6244

8 Samples

Download data: CEL

(Submitter supplied) 17beta-hydroxysteroid dehydrogenase type12 (HSD17B12) has been demonstrated to be involved in regulation of in situ biosynthesis of estradiol (E2). HSD17B12 expression was reported in breast carcinomas but its functions have remained unknown. Therefore, we examined the correlation between mRNA expression profiles determined by microarray analysis and tissue E2 concentrations obtained from 16 postmenopausal breast carcinoma cases in order to analyze an association of the enzyme expression with intratumoral E2 production. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platforms:

GPL96 GPL97

32 Samples

Download data: CEL, CHP

(Submitter supplied) Effects of estrogen on global gene expression: identification of novel targets of estrogen action. Keywords: other

Organism:

Homo sapiens

Type:

Expression profiling by SAGE

Platform:

GPL4

4 Samples

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(Submitter supplied) To obtain comprehensive information on 17beta-estradiol (E2) sensitivity of genes that are inducible or suppressible by this hormone, we designed a method that determines ligand sensitivities of large numbers of genes using DNA microarray and a set of simple Perl computer scripts implementing the standard metric statistics, and employed it to characterize effects of low (0-100 pM) concentrations of E2 on the transcriptome profile of MCF7/BUS human breast cancer cells, whose E2 dose-dependent growth curve saturated with 100 pM E2. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Datasets:

GDS2323 GDS2324

Platform:

GPL96

34 Samples

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Analysis of breast cancer MCF7/BUS cells treated with 17beta-estradiol (E2) at concentrations up to 100 pM. Results compared to that from an experiment examining the response to hormone starvation (GDS2323). Results provide insight into the E2 sensitivity of E2 inducible or suppressible genes.

Organism:

Homo sapiens

Type:

Expression profiling by array, count, 5 dose sets

Platform:

GPL96

Series:

GSE4668

25 Samples

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Analysis of breast cancer MCF7/BUS cells starved of estrogen for up to 2 days. Results compared to that from an experiment (GDS2324) examining the response to low concentrations of 17beta-estradiol (E2). Results provide insight into the E2 sensitivity of E2 inducible or suppressible genes.

Organism:

Homo sapiens

Type:

Expression profiling by array, count, 3 time sets

Platform:

GPL96

Series:

GSE4668

9 Samples

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(Submitter supplied) Gene expression changes caused by estrogen treatment of breast cancer cells that re-express ERalpha was investigated by infecting ER-negative MDA-MB-231 breast cancer cells for 24 h with recombinant adenovirus encoding full-length human ERalpha (Ad-ERalpha) or control vector (Ad-LacZ), and treating them with 0·01% ethanol (vehicle control) or 10-8 M 17beta-estradiol (E2). After 48 h of treatment, total RNA was isolated and used for transcript profiling on Affymetrix GeneChips. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Dataset:

GDS1326

Platform:

GPL96

12 Samples

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Analysis of the response of estrogen receptor (ER) negative MDA-MB-231 breast cancer cells infected with full-length ER alpha adenoviral constructs to treatment with 17beta-estradiol (E2). Results provide insight into the anti-proliferative effect of E2 on breast cancer cells reexpressing ER.

Organism:

Homo sapiens

Type:

Expression profiling by array, count, 2 agent, 2 protocol sets

Platform:

GPL96

Series:

GSE2251

12 Samples

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(Submitter supplied) Two subtypes of the estrogen receptor, ERalpha and ERbeta, mediate the actions of estrogens, and the majority of human breast tumors contain both ERalpha and ERbeta. To examine the possible interactions and modulatory effects of ERbeta on ERalpha activity, we have used adenoviral gene delivery to produce human breast cancer (MCF-7) cells expressing ERbeta, along with their endogenous ERalpha. We have examined the effects of ERβ expression on genome-wide gene expression by Affymetrix GeneChip microarrays. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Dataset:

GDS2770

Platform:

GPL96

12 Samples

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Analysis of estrogen receptor (ER) alpha positive MCF-7 breast cancer cells following introduction of ERbeta and treatment with estrogen. The majority of breast cancers express both ERalpha and ERbeta. Results provide insight into the comodulatory effects of these two ERs.

Organism:

Homo sapiens

Type:

Expression profiling by array, count, 2 agent, 3 infection sets

Platform:

GPL96

Series:

GSE4006

12 Samples

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(Submitter supplied) We previously encountered regulatory processes where dihydrotestosterone (DHT) exerted its inhibitory effect on parathyroid hormone-related protein (PTHrP) gene repression through the estrogen receptor (ER)α, but not the androgen receptor (AR) in breast cancer MCF-7 cells. Here, we investigated whether such an aberrant ligand-nuclear receptor (NR) interaction is present in prostate cancer LNCaP cells. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL17077

8 Samples

Download data: TXT

(Submitter supplied) Testing the hormonal response of ZR-75-1 cells to estrogen, androgens, and a combination of both homones, with view determining the crosstalk between the transcriptional programs mediated by these hormones in breast cancer cells, and comparison with matched ChIP sequencing data for AR and ERalpha. Data analysis demonstrated reciprocal interference between 5α-dihydrotestosterone (DHT)- and estradiol (E2)-induced transcriptional programs. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL6884

36 Samples

Download data: TXT

(Submitter supplied) Analysis of estrogen receptor (ER)-positive MCF7 cell total RNA expression and polysome-assiciated RNA expression following treatment with estradiol (E2) and vehicle (etoh). We used expression microarrays to measure polysome association and total RNA abundance in E2 treated MCF7. These data, along with previously published data, show that genes that are upregulated by estrogen treatment are biased towards association with polysomes.

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL6244

18 Samples

Download data: CEL

(Submitter supplied) We generated DNA microarray based gene expression profiles from three estrogen receptor a (ERa) positive breast cancer cell lines stimulated by 17ß-estradiol (E2) in vitro over a time course, as well as from MCF-7 cells grown as xenografts in ovariectomized athymic nude mice with E2 supplementation and after its withdrawal. Keywords: Cell line and xenograft comparisons

Organism:

Homo sapiens

Type:

Expression profiling by array

Platforms:

GPL570 GPL96

47 Samples

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(Submitter supplied) Although estrogen receptor (ER) and insulin-like growth factor (IGF) signaling are important for normal mammary development and breast cancer, cross-talk between these pathways, particularly at the level of gene transcription, remains poorly understood. We performed microarray analysis on MCF-7 breast cancer cells treated with estradiol (E2) or IGF-I for 3hr or 24hr. IGF-I regulated mRNA of 5-10-fold more genes than estradiol, and many genes were co-regulated by both ligands. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Dataset:

GDS4063

Platform:

GPL571

17 Samples

Download data: CEL

Analysis of MCF-7 breast cancer cells treated with estradiol (E2) or insulin-like growth factor I (IGF-I) for up to 24 hours. E2 and IGF-I signaling are important for normal mammary development and breast cancer. Results provide insight into the cross-talk between these pathways.

Organism:

Homo sapiens

Type:

Expression profiling by array, transformed count, 3 agent, 2 time sets

Platform:

GPL571

Series:

GSE26834

17 Samples

Download data: CEL

(Submitter supplied) The objective of the study was to investigate the effect of proteasome inhibition on glucocorticoid and estrogen receptor regulated gene expression. Keywords: Transcriptional profiling, Proteasome inhibitors, gene expression, steroid receptor

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL885

20 Samples

Download data: TIFF, TXT

(Submitter supplied) Changes in the expression of 8400 genes were monitored by cDNA microarray analysis during the first 32 h of human breast cancer (BC) ZR-75.1 cell stimulation with a mitogenic dose of 17beta-estradiol, a timing which corresponds to completion of a full mitotic cycle in hormone-stimulated cells. Hierarchical clustering of 344 genes whose expression either increases or decreases significantly in response to estrogen reveals that the gene expression program activated by the hormone in these cells shows 8 main patterns of gene activation/inhibition. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL970

25 Samples

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(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL570

9 Samples

Download data: CEL

(Submitter supplied) ERα17p is a synthetic peptide corresponding to the sequence P295LMIKRSKKNSLALSLT311 of the estrogen receptor alpha (ERα) and initially synthesized to mimic its calmodulin binding site. ERα17p was subsequently found to elicit estrogenic responses in E2-deprived ERα-positive breast cancer cells, increasing proliferation and E2-dependent gene transcription. Surprisingly, in E2-supplemented media, ERα17p induced apoptosis and modified the actin network, influencing thereby cell motility. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL570

3 Samples

Download data: CEL