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Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

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GATA-3 maintains luminal cell differentiation in the mammary gland and in breast cancer

ABSTRACT: We have identified GATA-3 as a critical regulator of luminal cell differentiation in the mammary gland. Acute loss of GATA-3 in the adult mammary gland leads to an expansion of an undifferentiated luminal epithelium and the formation of a multi-layered epithelium. Here we report microarray analysis of mammary glands that have undergone acute loss of GATA-3 Adult GATA-3flox/flox; WAP-rtTA-Cre and GATA-flox/+; WAP-rtTA-Cre mice were administered doxyxcline for 5 days and their mammary glands harvested. Total RNA was extracted by the Trizol method. Het mammary gland total RNA was labeled with Cy5 while Null mammary gland total RNA was labeled with Cy3. Microarray hybridization was performed on spotted oligonucleotide microarrays with 38,000 features. Lowess print-tip normalization and analysis was performed on the Acuity software package (V 4.0)

ORGANISM(S): Mus musculus

SUBMITTER: Hosein Kouros-Mehr

PROVIDER: E-GEOD-5602 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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GATA-3 maintains the differentiation of the luminal cell fate in the mammary gland.

Kouros-Mehr Hosein H Slorach Euan M EM Sternlicht Mark D MD Werb Zena Z

Cell 20061201 5

The GATA family of transcription factors plays fundamental roles in cell-fate specification. However, it is unclear if these genes are necessary for the maintenance of cellular differentiation after development. We identified GATA-3 as the most highly enriched transcription factor in the mammary epithelium of pubertal mice. GATA-3 was found in the luminal cells of mammary ducts and the body cells of terminal end buds (TEBs). Upon conditional deletion of GATA-3, mice exhibited severe defects in m ...[more]

PMID: 17129787

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GATA-3 maintains luminal cell differentiation in the mammary gland and in breast cancer

Project description:We have identified GATA-3 as a critical regulator of luminal cell differentiation in the mammary gland. Acute loss of GATA-3 in the adult mammary gland leads to an expansion of an undifferentiated luminal epithelium and the formation of a multi-layered epithelium. Here we report microarray analysis of mammary glands that have undergone acute loss of GATA-3 Keywords: genetic modification

2006-10-24 | GSE5602 | GEO

Microarray expression profiling of distinct subsets of mouse mammary epithelial cells

Project description:The purpose of this microarray experiment was to obtain reference gene expression patterns of a number of epithelial cell populations [mammary stem cells (MASC), luminal progenitors (LP), alveolar luminal stem/progenitor cells (WC virgin-these are mammary epithelial cells genetically marked by Wap-Cre in virgin females), mature luminal cells (ML, mainly represent ductal luminal cells in virgin females), and alveolar luminal cells (WC preg M-bM-^@M-^S these are alveolar cells genetically marked by Wap-Cre during mid-gestation)] present in the mammary gland of wildtype adult mice on a C57BL6 genetic background. For the isolation of RNA from mammary stem cells (MASC, Lin-CD24+CD29hi), luminal progenitors (LP, Lin-CD24hiCD29+CD61+), and mature luminal cells (ML, lin-CD24hiCD29+CD61-), the thoracic and inguinal mammary glands from 3 adult virgin female mice were harvested, minced and digested into a single cell suspension. Form each of these 3 single cell suspensions, the above populations were sorted by FACS. For alveolar luminal stem/progenitor cells and alveolar luminal cells, Lin-YFP+ mammary epithelial cells were isolated from virgin or midgestation mice genetically marked by Wap-Cre;R26Y. R26Y is a conditional YFP reporter that would be turned on upon Cre-mediated recombination.

2014-11-26 | E-GEOD-47376 | biostudies-arrayexpress

Sox9 deficiency effect on mouse mammary gland

Project description:RNA from MMTV-Cre;Sox9flox/flox mouse mammary glands were compared to RNA from MMTV-Cre;Sox9+/flox glands. Results indicate that Sox9 regulates several genes that impact ductal morphogenesis in the mammary gland. The portion of the fourth mammary gland that is proximal to the intra-mammary gland lymph nodes was dissected from four 5-week-old MMTV-Cre;Sox9flox/flox females and four MMTV-Cre;Sox9+/flox females of the same age. Total RNA from each gland was extracted and hybridized to separate Affymetrix Gene 1.0 ST chips.

2010-04-09 | E-GEOD-15917 | biostudies-arrayexpress

Sox9 deficiency effect on mouse mammary gland

2009-05-02 | GSE15917 | GEO

Microarray expression profiling of distinct subsets of mouse mammary epithelial cells

2014-11-26 | GSE47376 | GEO

Expression profiling of MMTV-PyMT tumors retrovirally over-expressing GATA-3

Project description:The primary cause of mortality in breast cancer is metastasis, a process which is still poorly understood. To study the process of breast cancer metastasis, we isolated focal hyperplasias from the MMTV-PyMT transgenic breast cancer model and transplanted to syngeneic hosts. The transplants underwent stereotyped progression to adenoma, early carcinoma, and late carcinoma at 5, 8 and 18 weeks post-transplant, respectively. We compared the gene expression profiles of adenomas and late carcinomas by microarray. Analysis of the data revealed that the most differentially expressed gene family between adenomas and late carcinomas were luminal differentiation genes, among them GATA-3. Adenomas were uniformly immunopositive for GATA-3, whereas early carcinomas displayed partial loss of GATA-3. Disseminated tumour cells and 18-week late carcinomas were invariably GATA-3 negative. We found that re-introduction of GATA-3 in late carcinomas induced markers of luminal differentiation and inhibited tumour dissemination to distant sites. Keywords: spotted oligonucleotide Full length GATA-3 was cloned into the PMIG retroviral vector, which contains an IRES-GFP cassette. Primary cultures of non-fluorescent MMTV-PyMT carcinomas were infected with the GATA-3 and control retroviruses and transplanted back into the cleared mammary fat pads of wild-type mice. After six weeks of growths, tumors were isolated and total RNA harvested by the Trizol method. Total RNA from GATA-3 infected tumor outgrowths were compared to empty vector infected tumor outgrowths.

2010-07-01 | E-GEOD-5223 | biostudies-arrayexpress

Expression data from primary mammary epithelial cells expressing ectopic p190B RhoGAP

Project description:P190B RhoGAP is required for mammary gland development, and its overexpression disrupts mammary gland branching morphogenesis. To better understand the mechanisms by which p190B regulates mammary gland development we performed gene expression microarray analysis on mammary epithelial cells isolated from p190B overexpressing transgenic mice compared to control mice. The mice used in this study were previously developed to inducibly overexpress p190B selectively in the mammary gland (Vargo-Gogola 2006). FVB/N mice carrying the MMTV-rtTA and TetO-p190B-IRES-luciferase transgenes or the MMTV-rtTA transgene only (Gunther EJ, FASEB) were fed doxycycline (Dox) chow (2 g/kg) for 7 d prior to removal of mammary glands and isolation of primary mammary epithelial cells at 6 weeks of age.

2011-01-22 | E-GEOD-26771 | biostudies-arrayexpress

Expression data from sorted control and Pygo2-null mouse mammary stem/basal cells

2013-09-05 | GSE45826 | GEO

Expression data from sorted control and Pygo2-null mouse mammary stem/basal cells

Project description:Skin-mammary specific knockout (SSKO) of Pygo2 (K14-cre; Pygo2 flox/-) , a WNT signaling co-activator, results in defective mouse mammary gland development. The FACS sorted mammary stem cell (MaSC)/basal population from Pygo2 SSKO mammary gland displays biased differentiation towards luminal/alveolar lineage in vitro, and reduced regeneration rate of new mammary gland in vivo To gain the insight into gene expression profiles in control and Pygo2 SSKO mammary epithelial cells (MECs), we sorted the freshly isolated mouse MECs into MaSC/basal (Lin-CD29hiCD24+) and mature luminal population (Lin-CD29lowCD24+CD61-), and extract total RNA for cDNA microarray analysis

2013-09-05 | E-GEOD-45826 | biostudies-arrayexpress

RNA-seq expression profiling of Suz12-deleted or wild-type organoids derived from basal or luminal mouse mammary epithelial cells.

Project description:Total RNA was extracted from organoids grown from single sorted luminal or basal populations from the mammary glands of Rosa26-creERT2 Suz12 flox female mice. Cultures were treated with 4-hydroxytamoxifen to induce deletion of Suz12.

2018-06-28 | GSE107626 | GEO

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