GEO DataSets

(Submitter supplied) The two estrogen receptors, ERα and ERβ function as ligand-inducible transcription factors. Most in vitro studies have reported that ERα drives breast cancer growth whereas ERβ, if expressed, suppresses growth. To dissect function and gene expression profile regulated by ERα or ERβ, respectively, we generated a novel cell model expressing only ERβ, by applying CRISPR-cas9 to delete ERα in MCF7 cells with stable Tet-Off-inducible ERβ expression. more...

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL21697

12 Samples

Download data: XLSX

(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

Download data

(Submitter supplied) The MCF-7 were infected with either control adenovirus expressing B-galactosidase (Ad) or adenovirus expressing ERB (AdERbeta) for 72 h. For knockdown of the endogenous ERa in MCF-7 cells, cells were treated with siRNA for 24h (AdERbeta+SiERalpha). Then cells were treated with Veh (0.1% EtOH), 10 nM E2 or 1 uM BEs (botanical extracts) for 24h.

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL11154

30 Samples

Download data: XLSX

(Submitter supplied) We used microarrays to detail the global transcriptional response mediated by ERalpha or ERbeta to the phytoestrogen genistein in the MCF-7 human breast cancer cell model. Keywords: ligand response over time course

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL96

105 Samples

Download data: CEL

(Submitter supplied) We performed chromatin immunoprecipitation (ChIP) with overnight with antibodies against the C-terminus (HC-20, from Santa Cruz Biotechnology, Europe) or the N-terminus (anti-Estrogen Receptor 18-32, from SigmaAldrich, Italy) of human ER-alpha with or without estrogen treatment for 45 minutes on TAP-ER-beta cells, and the immunoprecipitated DNA was sequenced with the Illumina/Solexa Genome Analyzer. more...

Organism:

Homo sapiens

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL9115

8 Samples

Download data: TXT

(Submitter supplied) U2OS-ERa, U2OS-ERb, and U2OS-ERab cells treated with 4HT or E2 Keywords: other

Organism:

Homo sapiens

Type:

Expression profiling by array

Dataset:

GDS1094

Platform:

GPL201

45 Samples

Download data: CEL

Expression profiling of U2OS osteosarcoma cell line expressing estrogen receptor/alpha heterodimer after treatment with 10 nM 17beta-estradiol (E2) or 10 nM 4-OH tamoxifen (4HT) for 24 hours. Results provide insight into the role of estrogen receptor/alpha heterodimer in gene regulation.

Organism:

Homo sapiens

Type:

Expression profiling by array, count, 3 agent, 3 genotype/variation sets

Platform:

GPL201

Series:

GSE2292

45 Samples

Download data: CEL

(Submitter supplied) We have previously demonstrated that endoxifen is the most important tamoxifen metabolite responsible for eliciting the anti-estrogenic effects of this drug in breast cancer cells expressing estrogen receptor-alpha. However, the relevance of estrogen receptor-beta in mediating endoxifen action has yet to be explored. Therefore, the goals of this study were to determine the differences in the global gene expression profiles elicited by estradiol treatment and endoxifen between parental MCF7 breast cancer cells (expressing estrogen receptor alpha only) and MCF7 cells stably expressing estrogen receptor beta.

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL6947

12 Samples

Download data: IDAT, TXT

(Submitter supplied) Estrogens exert many important effects in bone, a tissue that contains both estrogen receptors alpha and beta (ERalpha and ERbeta). To compare the actions of these receptors, we generated U2OS human osteosarcoma cells stably expressing ERalpha or ERbeta, at levels comparable to those in osteoblasts, and we characterized their response to estradiol (E2) over time using Affymetrix GeneChip microarrays to determine the expression of approximately 12,000 genes, followed by quantitative PCR verification of the regulation of selected genes. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Dataset:

GDS884

Platform:

GPL91

20 Samples

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Expression profiling of U2OS osteosarcoma cells after treatment with 17beta-estradiol (E2) for various lengths of time up to 48 hours. U2OS transfected with either estrogen receptor (ER) alpha or beta. Results identify signaling pathways in bone regulated by E2 through ERalpha and ERbeta.

Organism:

Homo sapiens

Type:

Expression profiling by array, count, 2 agent, 2 cell line, 5 time sets

Platform:

GPL91

Series:

GSE1153

20 Samples

Download data

(Submitter supplied) Estrogens play an important role in breast cancer (BC) development and progression, where the two isoforms of the estrogen receptor (ERα and ERβ) are generally co-expressed and mediate the effects of these hormones in cancer cells. ERβ has been suggested to exert an antagonist role toward the oncogenic activities of ERα, and for this reason it is considered an oncosuppressor. As clinical evidence regarding a prognostic role for this receptor subtype in hormone-responsive BC is still limited and conflicting, more knowledge is required on the biological functions of ERβ in cancer cells. more...

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL18460

18 Samples

Download data: TXT

(Submitter supplied) This submission is a part of two separate studies: a study of estrogen receptor-alpha (ERalpha)-mediated gene expression in response to different ligands and a study examining the roles of ERalpha and ERbeta in gene regulation in breast cancer cells.

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL15127

2 Samples

Download data: GPR

(Submitter supplied) Comparison of the basal and estrogen-induced effects on genome-wide transcription in ERα-positive breast cancer cell lines T47D and MCF7 after lentiviral transduction with ERβ.

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL15127

8 Samples

Download data: GPR

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

Organism:

Homo sapiens

Type:

Expression profiling by array; Genome binding/occupancy profiling by high throughput sequencing

Platforms:

GPL9052 GPL571

14 Samples

Download data: BED, CEL

(Submitter supplied) The closely related transcription factors (TFs), estrogen receptors ERα and ERβ, regulate divergent gene expression programs and proliferative outcomes in breast cancer. Utilizing MCF-7 breast cancer cells with ERα, ERβ, or both receptors as a model system to define the basis of differing response specification by related TFs, we show that these TFs and their key coregulators, SRC3 and RIP140, generate overlapping as well as unique chromatin-binding and transcription-regulating modules. more...

Organism:

Homo sapiens

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL9052

10 Samples

Download data: BED

(Submitter supplied) The closely related transcription factors (TFs), estrogen receptors ERα and ERβ, regulate divergent gene expression programs and proliferative outcomes in breast cancer. Utilizing MCF-7 breast cancer cells with ERα, ERβ, or both receptors as a model system to define the basis of differing response specification by related TFs, we show that these TFs and their key coregulators, SRC3 and RIP140, generate overlapping as well as unique chromatin-binding and transcription-regulating modules. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL571

4 Samples

Download data: CEL

(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

Download data

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

Download data

(Submitter supplied) The goal of this work was to identify all estrogen receptor beta target genes using RNA sequencing in MDA-MB-468 triple negative breast cancer cells engineered with inducible expression of full length estrogen receptor beta.

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL11154

12 Samples

Download data: TXT