GEO DataSets

(Submitter supplied) Subpopulations of MDA-MB-231 that exhibit different metastatic tropisms when injected into immuno-deficient mice. Also, a cohort of primary breast cancers surgically resected at the Memorial Sloan-Kettering Cancer Center (MSKCC). Keywords = Breast cancer Keywords = lung metastasis Keywords: parallel sample

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL96

121 Samples

Download data: CEL, EXP

(Submitter supplied) Next generation sequencing was used to identify Notch mutations in a large collection of diverse solid tumors. NOTCH1 and NOTCH2 rearrangements leading to constitutive receptor activation were confined to triple negative breast cancers (TNBC, 6 of 66 tumors). TNBC cell lines with NOTCH1 rearrangements associated with high levels of activated NOTCH1 (N1-ICD) were sensitive to the gamma-secretase inhibitor (GSI) MRK-003, both alone and in combination with pacitaxel, in vitro and in vivo, whereas cell lines with NOTCH2 rearrangements were resistant to GSI. more...

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL11154

27 Samples

Download data: TXT

(Submitter supplied) mRNA profiling data for 58 breast cancer cell lines at baseline

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL10379

58 Samples

Download data: CEL

(Submitter supplied) Background: Cancer stem cells are presumed to have virtually unlimited proliferative and self-renewal abilities and to be highly resistant to chemotherapy, a feature that is associated with overexpression of ATP-binding cassette transporters. We investigated whether prolonged continuous selection of cells for drug resistance enriches cultures for cancer stem-like cells. Methods: Cancer stem cells were defined as CD44+/CD24– cells that could self-renew (ie, generate cells with the tumorigenic CD44+/CD24– phenotype), differentiate, invade, and form tumors in vivo. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Dataset:

GDS4084

Platform:

GPL571

4 Samples

Download data: CEL

Analysis of weakly tumorigenic parental MCF-7 cells and a multistep doxorubicin-selected MCF-7/ADR subline. Results provide insight into whether prolonged continuous selection of cells for drug resistance enriches for cancer stem-like cells.

Organism:

Homo sapiens

Type:

Expression profiling by array, transformed count, 2 cell line, 2 genotype/variation sets

Platform:

GPL571

Series:

GSE24460

4 Samples

Download data: CEL

(Submitter supplied) The CD44hi compartment in human breast cancer is enriched in tumor-initiating cells, however the functional heterogeneity within this subpopulation remains poorly defined. From a human breast cancer cell line with a known bi-lineage phenotype we have isolated and cloned two CD44hi populations that exhibited mesenchymal/Basal B and luminal/Basal A features, respectively. Rather than CD44+/CD24-,Basal B (G4) cells, only CD44hi/CD24lo, epithelioid Basal A (A4) cells retained a tumor-initiating capacity in NOG mice, form mammospheres and exhibit resistance to standard chemotherapy. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL6244

10 Samples

Download data: CEL

(Submitter supplied) CD44+/CD24- subpopulation of normal and cancerous breast epithelial cells are suggested to have stem cell properties. The goal of this study was to identify gene expression differences between CD44+/CD24- and CD44-/CD24+ subpopulation of cells from a same cell lines. We selected MCF-10A cells, which are immortalized derived from a fibrocystic breast disease. These cells are immortalized but not transformed and express basal cell markers. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL570

8 Samples

Download data: CEL, CHP

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

Organism:

Homo sapiens

Type:

Expression profiling by array; Other

Platforms:

GPL21790 GPL21791

72 Samples

Download data: RCC

(Submitter supplied) In this study, we explored stem cell markers profile of mammary tumor initiation and growth derived from a human breast cancer cell line (MDA-MB-231 D3H1 Luci). In this dataset, we include expression data from primary mammary tumors pre-treated with Sulforaphane for 2 weeks (daily i.p. injection of 50mg SFN/kg) and kept treatment after cell injection for more 3 weeks and Saline 0.9% as a Control.

Organism:

Homo sapiens

Type:

Expression profiling by array; Other

Platform:

GPL21791

36 Samples

Download data: RCC

(Submitter supplied) In this study, we explored stem cell markers profile of mammary tumor initiation and growth derived from a human breast cancer cell line (MDA-MB-231 D3H1 Luci). In this dataset, we include expression data from primary mammary tumors pre-treated with Sulforaphane for 2 weeks (daily i.p. injection of 50mg SFN/kg) and kept treatment after cell injection for more 3 weeks and Saline 0.9% as a Control.

Organism:

Homo sapiens

Type:

Expression profiling by array; Other

Platform:

GPL21790

36 Samples

Download data: RCC

(Submitter supplied) IL13Rα2 overexpression promotes metastasis of basal-like breast cancers IL13Rα2 depletion in highly metastatic breast cancer cells suppresses lung metastases formation by upregulating TP63 and decreasing their migratory potential

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL6244

8 Samples

Download data: CEL, CHP, TXT

(Submitter supplied) We examined whether SATB1 functions as a global gene regulator in order to maintain the aggressive phenotype of the MDA-MB-231 cell line. We compared the gene expression profiles between control_shRNA-MDA-MB-231 cells, which express SATB1 at high levels, and SATB1_shRNA1-MDA-MB-231 in which the level of SATB1 was greatly downregulated by RNAi technology. This comparative studies were performed using two different platforms (Codelink and Affymetrix genechip) with two culture conditions either on plastic dish (2D) or on matrigel (3D) which allows cells to form a breast-like morphology only for non-aggressive cells. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platforms:

GPL4044 GPL3921

12 Samples

Download data: CEL, TXT

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

Organism:

Homo sapiens

Type:

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

Platforms:

GPL11154 GPL570

19 Samples

Download data: BED, BW, CEL

(Submitter supplied) During cancer progression, carcinoma cells encounter a variety of cytotoxic stresses such as hypoxia, nutrient deprivation, and low pH as a result of inadequate vascularization. To maintain survival and growth in the face of these physiologic stressors, a set of adaptive response pathways are induced. One adaptive pathway well studied in other contexts is the unfolded protein response (UPR), of which XBP1 is an important component. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL570

8 Samples

Download data: CEL

(Submitter supplied) We report the application of ChIP-seq, which combines chromatin immunoprecipitation (ChIP) with massively parallel DNA sequencing, to map genome-wide XBP1 binding sites in different breast cancer cell lines. We showed that HIF1α motif was enriched in XBP1 binding sites in triple negative breast cancer (TNBC) cell lines, but not enriched in ER positive breast cancer cell line. We also demonstrated that different breast cancer cell lines of the same sub-type had similar XBP1 binding sites, whereas different breast cancer sub-types had majorly different XBP1 binding sites. more...

Organism:

Homo sapiens

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL11154

11 Samples

Download data: BED, BW

(Submitter supplied) Global gene expression profiles obtained after treating cells with DOT1L inhibitor, EPZ5676

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL18573

12 Samples

Download data: TXT

(Submitter supplied) It has been suggested that breast cancers are driven and maintained by a cellular subpopulation with stem cell properties. These breast cancer stem cells (BCSCs) mediate metastasis and by virtue of their resistance to radiation and chemotherapy, contribute to relapse. Although several BCSC markers have been described, it is unclear whether these markers identify the same or independent BCSC populations. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL570

16 Samples

Download data: CEL

(Submitter supplied) It has been suggested that breast cancers are driven and maintained by a cellular subpopulation with stem cell properties. These breast cancer stem cells (BCSCs) mediate metastasis and by virtue of their resistance to radiation and chemotherapy, contribute to relapse. Although several BCSC markers have been described, it is unclear whether these markers identify the same or independent BCSC populations. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL570

27 Samples

Download data: CEL

(Submitter supplied) The lungs are a frequent target of metastatic breast cancer cells, but the underlying molecular mechanisms are unclear. All existing data were obtained either using statistical association between gene expression measurements found in primary tumors and clinical outcome, or using experimentally derived signatures from mouse tumor models. Here, we describe a distinct approach that consists to utilize tissue surgically resected from lung metastatic lesions and compare their gene expression profiles with those from non-pulmonary sites, all coming from breast cancer patients. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL570

23 Samples

Download data

(Submitter supplied) Triple-negative breast cancer (TNBC) is defined as pathologically negative for estrogen receptor α (ER-), progesterone receptor (PR-), and human epidermal growth factor receptor 2 (HER2) amplification. TNBCs are a heterogeneous group of clinically aggressive tumors with high risk of recurrence and metastasis. Current pharmacological treatment options remain largely limited to chemotherapy, recently supplemented by immunotherapy [37296893]. more...

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL19057

6 Samples

Download data: TXT