GEO DataSets

(Submitter supplied) The role of diet in the prevention of breast cancer is widely accepted, yet little is known on how early dietary effects mitigate adult cancer risk. Soy consumption is associated with reduced breast cancer risk in women, an effect largely attributed to the soy isoflavone genistein (GEN). We previously showed lower chemically-induced mammary tumor incidence in young adult rats with lifetime dietary intake of soy protein isolate (SPI), a highly refined soy product in infant formula, than in those fed the control diet Casein (CAS). more...

Organism:

Rattus norvegicus

Type:

Expression profiling by array

Dataset:

GDS2616

Platform:

GPL341

10 Samples

Download data: CEL

Analysis of mammary epithelial cells of females fed a diet containing the soy isoflavone genistein or soy protein isolate. Soy consumption is associated with reduced breast cancer risk in women. Results provide insight into the molecular basis of the beneficial effect of soy-rich diets.

Organism:

Rattus norvegicus

Type:

Expression profiling by array, count, 3 protocol sets

Platform:

GPL341

Series:

GSE6879

10 Samples

Download data: CEL

(Submitter supplied) The linkage between nutrition and cancer prevention is an intriguing concept that is gaining widespread support based on epidemiological and animal studies. Multiple mechanisms likely underlie dietary protection against cancer, with effects influenced by target tissue response, cell-cell interactions and developmental context. Given the negative correlation between breast cancer incidence and intake of soy foods by Asian women, and the increasing consumption of soy protein-based formula by infants in the Western world, we have studied soy protein isolate (SPI) used in most infant formula as a paradigm to evaluate diet as a risk factor in a rodent model of mammary cancer. more...

Organism:

Rattus norvegicus

Type:

Expression profiling by array

Platform:

GPL341

10 Samples

Download data: CEL

(Submitter supplied) We previously reported that lifetime consumption of soy proteins or whey proteins reduced the incidence of azoxymethane (AOM)-induced colon tumors in rats. To obtain insights into these effects, global gene expression profiles of colons from rats with lifetime ingestion of casein (CAS, control diet), soy protein isolate (SPI), and whey protein hydrolysate (WPH) diets were determined. We identified 31 induced and 49 repressed genes in the proximal colons of the SPI-fed group and 44 induced and 119 repressed genes in the proximal colons of the WPH-fed group, relative to CAS. more...

Organism:

Rattus norvegicus

Type:

Expression profiling by array

Dataset:

GDS2468

Platform:

GPL85

9 Samples

Download data: CEL, EXP

Analysis of colons of soy or whey protein fed Sprague Dawley males 40 weeks after azoxymethane (AOM) injection to induce tumor formation. Lifetime consumption of soy or whey proteins reduces the incidence of AOM-induced colon tumors in rats.

Organism:

Rattus norvegicus

Type:

Expression profiling by array, count, 3 protocol sets

Platform:

GPL85

Series:

GSE6102

9 Samples

Download data: CEL, EXP

(Submitter supplied) In order to properly understand whether xenoestrogens act as estrogens, it is essential to possess a solid portrait of the physiological effects of exogenous estradiol. Because the estrogen-dependent gene expression is one of the primary biomarkers of estrogenic action, we have assessed effects of three doses of exogenous estradiol (0.1, 1.0 and 10 µg/kg of body weight/day) on the mammary gland morphology and gene expression profiles by microarray analysis of prepubertal male and female rats of both sexes compared to untreated controls. more...

Organism:

Rattus norvegicus

Type:

Expression profiling by array

Platform:

GPL1355

24 Samples

Download data: CEL

(Submitter supplied) Soy foods have been suggested to have both positive health benefits and potentially adverse effects largely as a result of their content of isoflavone phytoestrogens. Since soy protein isolate (SPI) contains isoflavones, in addition to purported health benefits, safety concerns have been raised regarding the use of SPI and soy formulas, because of potential estrogenic actions during the neonatal period, including the potential for reproductive toxicity, infertility, and the possibility of increased risk for development and recurrence of estrogen sensitive cancers such as breast cancer. more...

Organism:

Rattus norvegicus

Type:

Expression profiling by array

Platform:

GPL1355

12 Samples

Download data: CEL

(Submitter supplied) Early full-term pregnancy affords lifetime protection against development of breast cancer. Parity-induced protection can be reproduced in a carcinogen-induced rat mammary carcinoma model. The molecular mechanisms of parity-induced protection against carcinogenic stimuli in rat mammary glands have not been fully characterized. In order to gain a better understanding of these molecular mechanisms, we performed gene expression analyses in parous and age-matched virgin (AMV) mammary glands of Lewis rats before and after carcinogen (N-methyl-N-nitrosourea; MNU) treatment. more...

Organism:

Rattus norvegicus

Type:

Expression profiling by array

Dataset:

GDS1422

Platform:

GPL890

4 Samples

Download data

Analysis of mammary gland from parous or virgin Lewis animals 3 weeks after treatment with 50 mg/kg of N-methyl-N-nitrosourea, a carcinogen. Full-term pregnancy early in life is associated with a reduced chance of developing breast cancer.

Organism:

Rattus norvegicus

Type:

Expression profiling by array, count, 2 agent, 2 development stage sets

Platform:

GPL890

Series:

GSE2726

4 Samples

Download data

(Submitter supplied) Beneficial effects of a soy diet on bone quality have been assumed to be due to the putative estrogenic actions of isoflavones. We studied the effects of soy protein isolate (SPI) on bone quality and compared these effects to 17β-estradiol (E2) in pre-pubertal rats. Female rats were weaned to a control diet with or without E2 (0.1, 1, 10 µg/kg/d), or SPI-containing diet with or without E2 (10 µg/kg/d) for 14 days beginning on postnatal day 20. more...

Organism:

Rattus norvegicus

Type:

Expression profiling by array

Platform:

GPL1355

12 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) Background: This study examines the impact of dietary fatty acids on regulation of gene expression in the mammary epithelial cells before and during puberty. Methods: The diets primarily consisted of n-9 monounsaturated fatty acids (olive oil), n-6 polyunsaturated fatty acids (safflower), saturated acids (butter), and the reference AIN-93G diet (soy oil). The dietary regimen mimics the repetitive nature of fatty acid exposure in Western diets. more...

Organism:

Rattus norvegicus

Type:

Expression profiling by array

Platform:

GPL8201

73 Samples

Download data: CEL

(Submitter supplied) R-spondins (Rspos) comprise a family of four secreted proteins that have important roles in cell proliferation, cell fate determination and organogenesis. Rspos typically exert their effects by potentiating the Wnt/β-catenin signaling pathway. To systematically investigate the impact of Rspo/Wnt on gene expression, we performed a microarray analysis using C57MG mouse mammary epithelial cells treated with recombinant Rspo2 and/or Wnt3a.

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL7202

12 Samples

Download data: TXT

(Submitter supplied) Following intrauterine low protein diet, the lumbar mammary gland of control and low protein rats were removed for further analysis via genarray on day 21 and day 28 postpartum.

Organism:

Rattus norvegicus

Type:

Expression profiling by array

Platform:

GPL14797

12 Samples

Download data: TXT

(Submitter supplied) Maintenance and propagation of breast cancer stem cells (BCSCs) is mediated via cytokine and growth factor networks. Direct in vivo linkage between dietary regulation of mammary stem (MaSC)/progenitor cell numbers and protection from breast cancer has not been reported. Here, we investigated the effect of post-weaning intake of soy protein isolate (SPI) relative to the control casein (CAS) diet on the stem/progenitor population and tumor formation in MMTV-Wnt1-Transgenic (Wnt1-Tg) female mice. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL1261

4 Samples

Download data: CEL

(Submitter supplied) We have compared an involution timecourse for wild type and E2F3 heterozygous mice on the Operon 3.0 platform. Three mice were taken for each genotype at each timepoint (Involution day 0, 1, 2, 3 and 4) and RNA was prepared from the mammary glands. The RNA from each mouse was pooled and run as an individual sample. Keywords: Mouse Mammary Gland RNA

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL3222

30 Samples

Download data: GPR, TXT

(Submitter supplied) We have used primary MEFs derived from wild type and E2F4 null mice growing asynchrounously in serum to generate a signature for E2F4 pathway activation. 10 wild type and 10 E2F4 null samples were each assayed using the Affymetrics Mouse Genome 430A 2.0 array. Keywords: Primary MEFs from wild type and E2F4 null mice

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL8321

20 Samples

Download data: CEL

(Submitter supplied) To understand how soy protein isolate (SPI) reduced liver steatosis in male obese Zucker rats, we conducted global gene expression (RNAseq) analysis on liver samples of male rats fed either the SPI or a control casein (CAS)-based diet (n=8 per group) for 16 wks. Bioinformatics was conducted using Ingenuity Pathway Analysis (IPA) software (Qiagen, CA) with P < 0.05 and 1.3 fold differential expression cutoff values.

Organism:

Rattus norvegicus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL22396

16 Samples

Download data: XLSX

(Submitter supplied) We have developed an in vitro system of cancer cell redirection that employs the 1:50 ratio of cancer cells to normal cells. Using our in vitro system of cancer cell redirection we investigated the genetic profiles of erbB2-overexpressing mammary tumor-derived cells as they undergo the redirection phenomenon.

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL6246

18 Samples

Download data: CEL