GEO DataSets

(Submitter supplied) Age and physiological status like menopause are key factors in mammary development and are associated with breast cancer risk. Less clear is what factors influence breast cancer intrinsic subtypes that are associated with prognosis. Here, we investigated the age of the host in a mammary chimera model. The mammary glands of wildtype BALB/c mice were cleared of endogenous epithelium at 3 weeks of age and subsequently transplanted during puberty (5 weeks) or upon maturation (10 weeks) with syngeneic Trp53null mammary fragments. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL6887

27 Samples

Download data: TXT

(Submitter supplied) Aged STAT1-/- female mice spontaneously develop ERa+ PR+ mammary tumors that exhibit strikingly similar hormone-sensitivity and -dependency as human ERa+ luminal breast cancers. We used microarray data to compare the genetic relationships between the STAT1-/- mammary tumors and human breast cancers.

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL1261

5 Samples

Download data: CEL

(Submitter supplied) Gene expression for genes differentially expressed between early vs. late tumor onset and high fat diet (HFD) vs. low fat diet (LFD) in P53 -/- mice.

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL11202

41 Samples

Download data: TXT

(Submitter supplied) The tumor suppressor gene p53 is frequently mutated in human breast cancer and is a marker for poor prognosis and resistance to chemotherapy. Transplantation of p53-null mouse mammary epithelium into syngeneic wild-type mice leads to normal mammary gland development followed by spontaneous mammary tumors that recapitulate many of the phenotypic, molecular, and genetic features of human breast cancer. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL6096

6 Samples

Download data: CEL

(Submitter supplied) Densely ionizing radiation is a major component of the space radiation environment and has potentially greater carcinogenic effect compared to sparsely ionizing radiation that is prevalent in the terrestrial environment. It is unknown to what extent the irradiated microenvironment contributes to the differential carcinogenic potential of densely ionizing radiation. To address this gap, 10-week old BALB/c mice were irradiated with 100 cGy sparsely ionizing g-radiation or 10, 30, or 80 cGy of densely ionizing, 350 MeV/amu Si particles and transplanted 3 days later with syngeneic Trp53 null mammary fragments. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL11533

45 Samples

Download data: CEL

(Submitter supplied) WAP-Cre:Ptenf/f:p53lox.stop.lox_R270H composite mice were generated by genetic crossing. In these mice, Pten is deleted and a R270H p53 mutation in the DNA binding domain is induced upon expression of Cre recombinase in pregnancy-identified alveolar progenitors. Tumors were characterized by histology, marker analysis, various bioinformatics methods, high-throughput (HTP) FDA-drug screen as well as orthotopic injection to quantify tumor initiating cells (TICs) and tail-vein injection to identify lung-metastasis. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL6246

31 Samples

Download data: CEL

(Submitter supplied) To assess how the TOX3 nuclear protein can modulate gene expression in luminal epithelial cells, MCF7 cells were transfected with a TOX3 expression vector or vector control. In both instances, GFP was coexpressed, allowing isolation of transfected cells by flow cytometry before transcriptome analysis. Experiments were carried out under estrogen depleted conditions, and cells isolated 48 hours after transfection.

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL6244

4 Samples

Download data: CEL

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

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL1261

21 Samples

Download data: CEL

(Submitter supplied) 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 – 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.

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL1261

15 Samples

Download data: CEL

(Submitter supplied) RUNX1 encodes a RUNX family transcription factor (TF) and was recently identified as a novel mutated gene in human luminal breast cancers. We found that Runx1 is expressed in all subpopulations of murine mammary epithelial cells (MECs) except the secretory alveolar luminal cells. Conditional knockout of Runx1 in MECs by MMTV-Cre led to a decrease in luminal MECs, largely due to a profound reduction in the estrogen receptor (ER)-positive mature luminal subpopulation, a phenotype that could be rescued by loss of either Trp53 or Rb1. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL1261

6 Samples

Download data: CEL

(Submitter supplied) JNK2 inhibits mammary luminal cell commitment

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL11383

19 Samples

Download data

(Submitter supplied) The retinoblastoma tumor suppressor, Rb, is implicated in luminal-B and basal-like breast carcinomas, yet its effect on mammary gland development and causal role in breast cancer subtypes remain undefined. Here we show that conditional deletion of Rb in mouse mammary epithelium led to expansion of the stem/progenitor cells and to focal acinar hyperplasia with squamous metaplasia. These uniform lesions progressed into histologically diverse, transplantable mammary adenocarcinomas and adenosquamous carcinomas with features of luminal-B or basal-like carcinomas. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platforms:

GPL891 GPL4092 GPL2881

144 Samples

Download data

(Submitter supplied) MicroRNAs (miRNAs) are small, non-coding, endogenous RNAs involved in many human diseases including breast cancer. miRNA expression profiling of human breast cancers has identified miRNAs related to the clinical diversity of the disease and potentially provides novel diagnostic and prognostic tools for breast cancer therapy. In order to further understand the roles of miRNAs in association with oncogenic drivers and in specifying sub-types of breast cancer, we performed miRNAexpression profiling on mammary tumors from eight well-characterized genetically -engineered Mouse (GEM) models of human breast cancer including MMTV–H-Ras, -Her2/neu, -c-Myc, -PymT, –Wnt1 and C3(1)/SV40 T/t-antigen transgenic mice, BRCA1fl/fl;p53+/-;MMTV-cre and the p53fl/fl ;MMTV-cre transplant model.

Organism:

Mus musculus

Type:

Non-coding RNA profiling by array

Platform:

GPL10880

46 Samples

Download data: TXT

(Submitter supplied) MicroRNAs (miRNAs) are small, non-coding, endogenous RNAs involved in many human diseases including breast cancer. miRNA expression profiling of human breast cancers has identified miRNAs related to the clinical diversity of the disease and potentially provides novel diagnostic and prognostic tools for breast cancer therapy. In order to further understand the roles of miRNAs in association with oncogenic drivers and in specifying sub-types of breast cancer, we performed miRNAexpression profiling on mammary tumors from eight well-characterized genetically -engineered Mouse (GEM) models of human breast cancer including MMTV–H-Ras, -Her2/neu, -c-Myc, -PymT, –Wnt1 and C3(1)/SV40 T/t-antigen transgenic mice, BRCA1fl/fl;p53+/-;MMTV-cre and the p53fl/fl ;MMTV-cre transplant model. more...

Organism:

Mus musculus

Type:

Non-coding RNA profiling by array

Platform:

GPL10880

11 Samples

Download data: TXT

(Submitter supplied) We performed affymetrix gene expression profiling on mammary tumors from eight well-characterized genetically engineered Mouse (GEM) models of human breast cancer. The gene expression data will be combined with the miRNA gene expression data from the corresponding mammary tumors and tissues for integrated miRNA and mRNA gene expression analysis, which are useful in improving the identification of miRNA targets from potential targets identified in silico.

Organism:

Mus musculus

Type:

Expression profiling by array

Dataset:

GDS4077

Platform:

GPL8321

46 Samples

Download data: CEL

Analysis eight well-characterized genetically engineered mouse (GEM) models of human breast cancer , including MMTV-H-Ras, -Her2/neu, -c-Myc, -PymT, -Wnt1 and C3(1)/SV40 T/t-antigen transgenic mice, BRCA1(fl/fl);p53(+/-);MMTV-cre knock-out mice and the p53(fl/fl);MMTV-cre transplant model.

Organism:

Mus musculus

Type:

Expression profiling by array, transformed count, 9 genotype/variation, 3 strain, 2 tissue sets

Platform:

GPL8321

Series:

GSE23938

46 Samples

Download data: CEL

(Submitter supplied) We developed a mouse model that captures radiation effects on host biology by transplanting unirradiated Trp53 null mammary tissue to sham or irradiated hosts. Gene expression profiles of tumors that arose in irradiated mice are distinct from those that arose in naïve hosts. Host irradiation induces a metaprofile consisting of gene modules representing stem cells, cell motility, macrophages and autophagy. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Datasets:

GDS4768 GDS4769

Platform:

GPL1261

56 Samples

Download data: CEL

Analysis of Trp53-null tumors arising from Tgfb1+/- hosts cleared of mammary gland epithelia, irradiated, then transplanted with nonmalignant Trp53-null mammary tissue. TGF-β drives EMT and is highly induced by IR. Results provide insight into host biology contributions to radiation carcinogenesis.

Organism:

Mus musculus

Type:

Expression profiling by array, transformed count, 2 protocol sets

Platform:

GPL1261

Series:

GSE42742

24 Samples

Download data: CEL

Analysis of Trp53-null mammary tumors arising from WT hosts cleared of mammary gland epithelium, irradiated, then transplanted with nonmalignant Trp53-null mammary tissue. Results provide insight into the influence of the radiation response of the microenvironment on the carcinogenic process.

Organism:

Mus musculus

Type:

Expression profiling by array, transformed count, 2 protocol sets

Platform:

GPL1261

Series:

GSE42742

32 Samples

Download data: CEL

(Submitter supplied) We have developed novel genetically engineered mouse mammary cancer models that develop hormone receptor-positive or -negative tumors depending on the combination of genetic abrrations induced in tumors. Tumors with loss of Brca1 and Trp53 are hormone receptor (HR) negative and tumors with or without Brca1 loss together with concomitant loss of Trp53 and inhibition of proteins of Rb family (Rbf) are HR positive. more...

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL24247

18 Samples

Download data: TXT