GEO DataSets

Analysis of MDA-MB231 breast cancer cells depleted for PIAS1. PIAS1 is a SUMO ligase. Results provide insight into the role of PIAS1 in breast tumorigenesis.

Organism:

Homo sapiens

Type:

Expression profiling by array, count, 2 growth protocol, 2 protocol sets

Platform:

GPL571

Series:

GSE44024

4 Samples

Download data: CEL, CHP

(Submitter supplied) To study the effect of PIAS1 on transcriptional regulation, we establishedstable PIAS1 shRNA knockdown cells in breast cancer cell line MDA-MB231. By comparing the expression profiles of control vs PIAS1 knockdown cells, we can identify potential PIAS1 target genes involved in breast tumorigenesis.

Organism:

Homo sapiens

Type:

Expression profiling by array

Dataset:

GDS5076

Platform:

GPL571

4 Samples

Download data: CEL, CHP

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

Organism:

Homo sapiens

Type:

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

Platforms:

GPL10558 GPL9052

19 Samples

Download data

(Submitter supplied) The majority of breast cancer subtypes express androgen receptor (AR) in addition to estrogen receptor α (ERα). Depending on the breast cancer subtype androgen signaling has either stimulatory or inhibitory roles in breast cancer cell growth. We have mapped AR cistrome in ERα negative human molecular apocrine breast cancer MDA-MB453 cells and analyzed it in relation to the androgen-regulated transcriptome in the same cells. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL10558

12 Samples

Download data: TXT

(Submitter supplied) The majority of breast cancer subtypes express androgen receptor (AR) in addition to estrogen receptor a (ERa). Depending on the breast cancer subtype androgen signaling has either stimulatory or inhibitory roles in breast cancer cell growth. We have mapped AR cistrome in ERa negative human molecular apocrine breast cancer MDA-MB453 cells and analyzed it in relation to the androgen-regulated transcriptome in the same cells. more...

Organism:

Homo sapiens

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL9052

7 Samples

Download data: BED

(Submitter supplied) To study the importance of PIAS1 (protein inhibitor of activated STAT1) for the androgen-regulated transcriptome of VCaP prostate cancer cells, we silenced its expression by RNAi. Transcriptome analyses revealed that a subset of the androgen-regulated genes is significantly influenced, either activated or repressed, by PIAS1 depletion. The depletion also exposed a completely new set of genes to androgen regulation, suggesting that PIAS1 can mask genes from androgen receptor (AR). more...

Organism:

Homo sapiens

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platforms:

GPL11154 GPL9052

24 Samples

Download data: BED, BEDGRAPH

(Submitter supplied) Analysis of PIAS1 co-regulation in the androgen signaling pathways in prostate cancer cell line.

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL10558

12 Samples

Download data: TXT

(Submitter supplied) We previously identified a gene signature predicted to regulate the epithelial-mesenchymal transition (EMT) in both epithelial tissue stem cells and breast cancer cells. A phenotypic RNA interference (RNAi) screen identified the genes within this 140-gene signature that promoted the conversion of mesenchymal epithelial cell adhesion molecule-negative (EpCAM-) breast cancer cells to an epithelial EpCAM+/high phenotype. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL7504

18 Samples

Download data

(Submitter supplied) We reported that low expression of miRNA in cancer as a recognized signature leads to loss function of TSGs in breast cancer. In 157 paired breast cancer and adjacent normal samples, tumour suppressor gene GPER1 and miR-339 are both downregulated in Luminal A/B and Triple Negative Breast Cancer subtypes. Mechanistic investigations revealed that that miR-339 upregulates GPER1 expression in breast cancer cells by switching on the GPER1 enhancer, which can be blocked by enhancer deletion through the CRISPR/Cas9 system.

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL24676

5 Samples

Download data: BIGWIG, BW

(Submitter supplied) Subpopulations of primary Human Mammary Epithelial Cells (HMEC) have the unique ability to escape a period of growth arrest and continue to proliferate. These cells, called post-selection or variant cells (vHMEC), share features with premalignant breast cancer lesions, including p16INK4A promoter hypermethylation. Epigenetic silencing of tumour suppressor genes through DNA methylation and histone modification is an early event in tumorigenesis. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL3348

6 Samples

Download data: TXT

(Submitter supplied) This genome-wide gene expression studies are aimed at deciphering whether FOXF2 transcriptional activity and specificity are compromised in FOXF2-expressing breast cancer cells (MDA-MB-231) compared with FOXF2-expressing normal breast epithelial cells (MCF10A).

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL18387

4 Samples

Download data: TXT

(Submitter supplied) MicroRNAs are critical mediators of stem cell pluripotency, differentiation and malignancy. Limited information exists regarding microRNA alterations that facilitate initiation and progression of human lung cancers. In this study, array techniques were used to evaluate microRNA expression in normal human respiratory epithelia and lung cancer cells cultured in the presence or absence of cigarette smoke condensate (CSC). more...

Organism:

Homo sapiens

Type:

Other

Platform:

GPL16382

8 Samples

Download data: TXT

(Submitter supplied) Here we determine the gene targets controlled by PBRM1-PIAS1 cooperation in regulating epidermal differentiation.

Organism:

Homo sapiens

Type:

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

Platform:

GPL20301

32 Samples

Download data: BIGWIG, BROADPEAK, CSV

(Submitter supplied) To investigate the effect of ANGPTL4 expression on bladder cancer cells, expression profile was compared in BFTC 905 cells overexpressed with control vector vs human full length ANGPTL4 gene.

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL15520

2 Samples

Download data: TXT

(Submitter supplied) Aberrant DNA methylation is frequently observed in breast cancer. However, the relationship between methylation patterns and the heterogeneity of breast cancer has not been comprehensively characterized. Whole-genome DNA methylation analysis using 450K Illumina BeadArrays was performed on 188 human breast tumors. Unsupervised bootstrap consensus clustering was performed to identify DNA methylation epigenetic subgroups (epitypes). more...

Organism:

Homo sapiens

Type:

Methylation profiling by genome tiling array

Platform:

GPL13534

188 Samples

Download data: TXT

(Submitter supplied) We performed whole-genome methylation analysis using 450K Illumina BeadArrays on different human cell types. In total 24 experiments were performed. Dermal fibroblasts, three different epidermal melanocytes (dark, medium and light pigmentation), epidermal keratinocytes, mammary fibroblasts, mammary epithelial cells, mammary endothelial cells and mesenchymal stem cells were analyzed in technical duplicates. more...

Organism:

Homo sapiens

Type:

Methylation profiling by genome tiling array

Platform:

GPL13534

24 Samples

Download data: IDAT, TXT

(Submitter supplied) Postmenopausal breast cancer patients benefit from aromatase inhibitors (AIs) that reduce the levels of estrogens critical for the growth of estrogen receptor (ER)-positive tumors. Unfortunately, many tumors are resistant to AI, and we are only beginning to understand the complex mechanisms underlying treatment resistance. Here we set out to determine whether epigenetic changes could contribute to therapy resistance. more...

Organism:

Homo sapiens

Type:

Methylation profiling by genome tiling array

Platform:

GPL5082

2 Samples

Download data: BAR, CEL

(Submitter supplied) The impact of Mll1 removal on intestinal stem cells expressing an oncogenic form of beta-catenin (beta-cateninGOF) was analysed in 4 pairs of sorted intestinal stem cells of Lgr5-CreERT2; beta-cateninGOF;Mll1+/- (control) and Lgr5-CreERT2; beta-cateninGOF;Mll1-/- (knockout) at 10 days after tamoxifen-induced mutagenesis. Using 75-base-pair reads, around 30 million reads per sample with comparable unique mapped reads (73-78%) were obtained. more...

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL19057

8 Samples

Download data: TSV

(Submitter supplied) To evaluate the methylation profiles of breast cell lines, we performed methylation profiling of 55 well-characterized breast cancer cell lines on the Illumina HumanMethylation27 (HM27) platform and made use of publicly available methylation profiles of primary breast tumors for comparison. The available annotation for each cell line includes estrogen receptor (ER), progesterone receptor (PR), and human epidermal growth factor receptor 2 (HER2) status, as well as the tumor type, and the age of each patient. more...

Organism:

Homo sapiens

Type:

Methylation profiling by array

Platform:

GPL8490

55 Samples

Download data: TXT