GEO DataSets

Analysis of mammary glands of animals from pre-puberty to post-puberty. Results provide insight into the mechanisms underlying mammary gland development during puberty.

Organism:

Mus musculus

Type:

Expression profiling by array, transformed count, 5 age, 3 development stage sets

Platform:

GPL339

Series:

GSE6453

14 Samples

Download data: CEL

(Submitter supplied) The aim was to carry out global analysis of gene expression changes occurring in the normal pubertal mouse mammary gland from the appearance to the regression of terminal end buds. Keywords: developmental time course

Organism:

Mus musculus

Type:

Expression profiling by array

Dataset:

GDS2721

Platform:

GPL339

14 Samples

Download data: CEL

(Submitter supplied) Estrogen receptor-{alpha} (ER{alpha}) and its ligand estradiol play critical roles in breast cancer growth and are important therapeutic targets for this disease. Using chromatin immunoprecipitation (ChIP)-on-chip, ligand-bound ER{alpha} was recently found to function as a master transcriptional regulator via binding to many cis-acting sites genome-wide. Here, we used an alternative technology (ChIP cloning) and identified 94 ER{alpha} target loci in breast cancer cells. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Dataset:

GDS3283

Platform:

GPL570

9 Samples

Download data: CEL

Analysis of MCF-7 breast cancer cells treated with estradiol for 3 or 6 hours. Results combined with ChIP experiments to identify estrogen receptor alpha binding sites and estradiol target genes in breast cancer cells.

Organism:

Homo sapiens

Type:

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

Platform:

GPL570

Series:

GSE11506

9 Samples

Download data: CEL

(Submitter supplied) The nuclear LIM-only protein LMO4 is upregulated in breast cancer, especially estrogen receptor negative tumors, and its overexpression in mice leads to hyperplasia and tumor formation. Here, we show that deletion of LMO4 in the mammary glands of mice leads to impaired lobuloalveolar development due to decreased epithelial cell proliferation. With the goal of discovering potential LMO4-target genes, we also developed a conditional expression system in MCF-7 cells for both LMO4 and a dominant negative (DN) form of its co-regulator, Co-factor of LIM domains (Clim/Ldb/Nli). more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Datasets:

GDS2787 GDS2788 GDS2789

Platforms:

GPL96 GPL97 GPL570

18 Samples

Download data: CEL

Analysis of breast cancer MCF-7 cells after the induction of expression of a dominant negative form of the cofactor of LIM domains (CLIM), a co-regulator of the nuclear LIM only protein 4 (LMO4). LMO4 is upregulated in breast cancer. Results provide insight into the role of LMO4 in tumor formation.

Organism:

Homo sapiens

Type:

Expression profiling by array, count, 2 protocol sets

Platform:

GPL570

Series:

GSE7382

6 Samples

Download data: CEL

Analysis of breast cancer MCF-7 cells following the induction of expression of nuclear LIM-only protein 4 (LMO4). LMO4 is upregulated in breast cancer. Results provide insight into the role of LMO4 in promoting tumor formation.

Organism:

Homo sapiens

Type:

Expression profiling by array, count, 2 protocol sets

Platform:

GPL97

Series:

GSE7382

6 Samples

Download data: CEL

Analysis of breast cancer MCF-7 cells following the induction of expression of nuclear LIM-only protein 4 (LMO4). LMO4 is upregulated in breast cancer. Results provide insight into the role of LMO4 in promoting tumor formation.

Organism:

Homo sapiens

Type:

Expression profiling by array, count, 2 protocol sets

Platform:

GPL96

Series:

GSE7382

6 Samples

Download data: CEL

(Submitter supplied) This study was performed to check that ESR1 and BMI1 are biologically active after lentiviral transduction of primary human mammary epithelial cells (HMECs) with lentiviral vectors expressing ESR1 and BMI1 from the human PGK promoter. ESR1 targets like PGR, PRLR and GREB1, but not TFF1 and XBP1, were induced by estradiol in the ESR1-expressing cells. BMI1 targets like BMI1, NEFL and CCND2 were repressed in the BMI1-expressing cells. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL570

8 Samples

Download data: CEL

(Submitter supplied) We were interested in determining what genes might be controlled by TFAP2C and/or TFAP2A, either directly or indirectly through regulation of ER-alpha and potentially other signaling pathways. We performed an microarray analysis in MCF7 cells with elimination of either TFAP2C or TFAP2A. The patterns of gene expression with alteration of TFAP2 activity were compared to changes in expression induced by estrogen exposure. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL570

6 Samples

Download data: CEL, CHP

(Submitter supplied) Characterizing estrogen-responsive genes is an essential step towards fully understanding mechanisms of estrogen action during mammary gland development and function. To catalogue these genes, sixteen prepubertal heifers were used in a 2 x 2 factorial with ovarian status (intact or ovariectomized) as the first factor and estrogen treatment as the second (control or estradiol). Heifers were ovariectomized at approximately 4.5 months of age and estrogen treatments were initiated one month later. more...

Organism:

Bos taurus

Type:

Expression profiling by array

Platform:

GPL3711

32 Samples

Download data: CEL

(Submitter supplied) The developing mammary gland contains distinct microenvironments that perform specialized functions for branching and ductal invasion. These microenvironments include the terminal end buds (TEBs) at the tips of invading primary ducts and the more differentiated proximal ducts that give rise to side branches. We have devised a novel microarray approach to identify genes that are expressed in the epithelium and stroma of these distinct microenvironments. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Dataset:

GDS2115

Platform:

GPL2660

12 Samples

Download data

Comparison of terminal end buds (TEBs) and ducts from 5-week-old mammary glands. TEBs and ducts perform specialized functions for ductal invasion and branching. Results provide insight into the epithelial-stromal crosstalk that drives mammary morphogenesis.

Organism:

Mus musculus

Type:

Expression profiling by array, log2 ratio, 2 tissue sets

Platform:

GPL2660

Series:

GSE2988

12 Samples

Download data

(Submitter supplied) Estrogen Receptor is a key transcriptional regulator in mammary gland development and breast cancer. In this study, we have mapped the Estrogen Receptor chromatin binding patterns in healthy mouse mammary gland

Organism:

Mus musculus

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL13112

2 Samples

Download data: BED, TXT

(Submitter supplied) The CCND1 gene, which is frequently overexpressed in cancers, encodes the regulatory subunit of a holoenzyme that phosphorylates the retinoblastoma protein (pRb). It is known that cyclin D1 regulates ERα transactivation using heterologous reporter systems, the significance of this observation to E2 dependent gene activation is unknow. E2 stimulated MCF7 cells treated with cyclin D1 siRNA in order to analyze the genes regulated by estradiol in a cyclin D1 dependent manner. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL6244

8 Samples

Download data: CEL

(Submitter supplied) Ovariectomized virgin Ccnd1-/- and Ccnd1+/+ mice (5 weeks of age) were allowed to recuperate for 2 weeks. The mice were assigned to either replacement pellets containing E2 (0.75 mg, 60-day release) or pellet containing placebo. Mice were sacrificed at day 7 after pellet implantation. RNA extracted from mammary glands (3 each group) was labeled and used to probe Affymetrix 430_2.0 arrays.

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL1261

12 Samples

Download data: CEL

(Submitter supplied) Both ovarian and pituitary hormones are required for the pubertal development of the mouse mammary gland. Estradiol directs ductal elongation and branching within the adipose stroma of the adolescent mouse mammary gland, while progesterone leads to tertiary branching and alveolar development. The purpose of this investigation was to identify the estrogen-responsive genes that are associated with estrogen-stimulated ductal elongation and branching in the mouse mammary gland in the absence of other ovarian hormones. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL891

16 Samples

Download data: TIFF, TXT

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

Organism:

Mus musculus

Type:

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

Platform:

GPL17021

7 Samples

Download data: BED, WIG

(Submitter supplied) Estrogen receptor α (ERα) is the major driving transcription factor in normal mammary gland development as well as breast cancer initiation and progression.However,the fundamental mechanisms,including global cistromic and genomic transcriptional responses that are required to elicit mammary epithelial cell proliferation in response to estradiol, have not been elucidated. We used RNA-seq analysis to identify global gene expression signatures that are acutely regulated by estroegn receptors in the mouse mammary gland after acute estradiol treatment.

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL17021

4 Samples

Download data: WIG

(Submitter supplied) Estrogen receptor α (ERα) is the major driving transcription factor in normal mammary gland development as well as breast cancer initiation and progression.However,the fundamental mechanisms,including global cistromic and genomic transcriptional responses that are required to elicit mammary epithelial cell proliferation in response to ERα, have not been elucidated. We used chromatin immunoprecipitation followed by deep sequencing (ChIP-seq) to identify estrogen regulated genes that directly recruit ERα in the WT mouse mammary gland

Organism:

Mus musculus

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL17021

3 Samples

Download data: BED