GEO DataSets

Analysis of Gb4 and Gb7 glioma cancer stem cells following forced expression of the Notch1 intracellular domain (NICD) to activate the Notch1 signaling pathway. Results provide insight into a role for the Notch1 pathway in glioblastoma stem cell plasticity and angiogenic properties.

Organism:

Homo sapiens

Type:

Expression profiling by array, transformed count, 4 cell type, 2 genotype/variation sets

Platform:

GPL11532

Series:

GSE44561

8 Samples

Download data: CEL, CHP

(Submitter supplied) In this study, we explored the transcriptomic consequences of strong activation of the Notch pathway in embryonic human neural stem cells and in gliomas. For this we used a forced expression of the Notch intracellular domain (NICD). Glioblastoma multiforms (GBMs) are highly vascularized brain tumors containing a subpopulation of multipotent cancer stem cells. These cells closely interact with endothelial cells in neurovascular niches. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Dataset:

GDS5671

Platform:

GPL11532

8 Samples

Download data: CEL, CHP

(Submitter supplied) How cancer cells adapt to hypoxia during tumor development remains an important question. The hypothesis tested in the present study was that tumor cell-derived exosome vesicles (also known as microvesicles or extracellular vesicles) are mediators of hypoxia-dependent intercellular signaling in glioblastoma (GBM), i.e. highly aggressive brain tumors characterized by hypoxia and a vascular density that is among the highest of all human malignancies. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL6947

12 Samples

Download data: TXT

(Submitter supplied) We compared a large panel of human glioblastoma stem-like (GS) cell lines, corresponding primary tumors and conventional glioma cell lines to identify cell lines that preserve the transcriptome of human glioblastomas most closely, thereby allowing identification of shared therapeutic targets. We used Affymetrix HG-U133 Plus 2.0 microarrays to compare human glioblastoma stem-like (GS) cell lines, corresponding primary tumors and conventional glioma cell lines.

Organism:

Homo sapiens

Type:

Expression profiling by array

Dataset:

GDS3885

Platform:

GPL570

92 Samples

Download data: CEL, EXP

(Submitter supplied) Recent studies demonstrated that tumor cells with stem cell-like properties can be cultured from human glioblastomas by using conditions that select for the expansion of neural stem cells. We established glioblastoma stem-like (GS-) cell cultures from 9 different glioblastomas, 8 of which generated stably expandable cell lines. Analyzing GS-cell cultures, we discovered two clearly discernable phenotypes. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL570

17 Samples

Download data: CEL, EXP

Analysis of glioblastoma stem-like (GS) cell lines, corresponding glioblastoma primary tumors, conventional glioma cell lines, and GS neurospheres. Results provide insight into cell lines recapitulating transcriptional aspects of glioblastomas, thereby allowing identification of therapeutic targets.

Organism:

Homo sapiens

Type:

Expression profiling by array, transformed count, 7 specimen sets

Platform:

GPL570

Series:

GSE23806

92 Samples

Download data: CEL, EXP

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

Organism:

Homo sapiens

Type:

Expression profiling by array; Genome variation profiling by array; Genome variation profiling by genome tiling array

Platforms:

GPL5175 GPL8736 GPL5477

41 Samples

Download data: CEL, CHP, TXT

(Submitter supplied) Transcriptome analysis of RNAs from brain tumor Investigate potential of true exon level expression profiling .

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL5175

16 Samples

Download data: CEL, CHP

(Submitter supplied) GBM is a heterogenous tumor. Based on membrane protein expression, the GBM single cell dissociates were seperated into different subfractions by FACS assay. The genomic aberration among each populations were compared by analysis of CGH data.

Organism:

Homo sapiens

Type:

Genome variation profiling by array

Platform:

GPL5477

14 Samples

Download data: TXT

(Submitter supplied) Examine the genetic abnormality in brain tumors

Organism:

Homo sapiens

Type:

Genome variation profiling by genome tiling array

Platform:

GPL8736

11 Samples

Download data: TXT

(Submitter supplied) GBM is a heterogenous brain tumor with hyperproliferation of endothelial cells. In order to understand the cellular mechanism of vasculogenesis in GBM, four fractions of cells are seperated. Microarray assays was performed to examine the potential lineage relationship and the signal pathways involved in determining the cell identity and function.

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL570

8 Samples

Download data: CEL, CHP

(Submitter supplied) To find factors and pathways that Eva1 regulates in NSCL61

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL5642

4 Samples

Download data: GPR

(Submitter supplied) To identify Ceacam1 downstream factors, we compared gene expressions between NSCs and Ceacam1L-expressing NSC and between NSCL61 and Ceacam1shRNA-expressing NSCL61.

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL10787

4 Samples

Download data: TXT

(Submitter supplied) A mesenchymal transition occurs both during natural evolution of glioblastoma (GBM) and in response to therapy. However, the molecular mechanisms underlying mesenchymal differentiation are not well understood. We have found that the adhesion G protein-coupled receptor GPR56/ADGRG1 inhibits mesenchymal differentiation and radioresistance in glioblastoma stem-like initiating cells (GICs). Here, we have performed microarray analysis of parental- versus GPR56 knockout-GICs to identify gene expression changes upon GPR56 knockout

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL20844

8 Samples

Download data: TXT

(Submitter supplied) A mesenchymal transition occurs both during natural evolution of glioblastoma (GBM) and in response to therapy. However, the molecular mechanisms underlying mesenchymal differentiation are not well understood. We have found that the adhesion G protein-coupled receptor, GPR56/ADGRG1, inhibits mesenchymal differentiation and radioresistance in glioblastoma stem-like initiating cells (GICs). Here, we have performed microarray analysis of control- versus GPR56 knockdown-GICs to characterize gene expression changes upon GPR56 knockdown and identify a gene expression signature associated to GPR56.

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL16699

8 Samples

Download data: TXT

(Submitter supplied) Glioblastomas (GBM) are brain tumors which display a bad prognosis despite conventional treatment associating surgical resection and subsequent radio-chemotherapy. These tumors are defined by an abundant and abnormal vascularization as well as by an important cellular heterogeneity. GBM notably contain a subpopulation of GBM stem-like cells (GSC) which contribute to tumor aggressiveness, resistance, and recurrence. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL16686

12 Samples

Download data: CEL

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

Organism:

Homo sapiens

Type:

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

Platforms:

GPL11154 GPL16791

49 Samples

Download data: BED, BIGWIG, BW

(Submitter supplied) Developmental fate decisions are dictated by master transcription factors (TFs) that interact with cis-regulatory elements to direct transcriptional programs. Certain malignant tumors may also depend on a cellular hierarchy reminiscent of normal development but superimposed on underlying genetic aberrations. In glioblastoma (GBM), a subset of stem-like tumor- propagating cells (TPCs) appears to drive tumor progression and underlie therapeutic resistance, yet remain poorly understood. more...

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platforms:

GPL16791 GPL11154

23 Samples

Download data: BW, TXT

(Submitter supplied) Developmental fate decisions are dictated by master transcription factors (TFs) that interact with cis-regulatory elements to direct transcriptional programs. Certain malignant tumors may also depend on a cellular hierarchy reminiscent of normal development but superimposed on underlying genetic aberrations. In glioblastoma (GBM), a subset of stem-like tumor- propagating cells (TPCs) appears to drive tumor progression and underlie therapeutic resistance, yet remain poorly understood. more...

Organism:

Homo sapiens

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platforms:

GPL11154 GPL16791

26 Samples

Download data: BED, BIGWIG

(Submitter supplied) Glioblastoma multiforme (GBM) is a highly malignant primary central nervous neoplasm characterized by tumor cell invasion, robust angiogenesis, and a mean survival of 15 months. Human cytomegalovirus (HCMV) infection is present in > 90% of GBMs, although the role the virus plays in GBM pathogenesis is unclear. We report here that a majority of human GBM tumors express HCMV pp71, which has previously been found to promote cell cycle progression and viral replication, and that pp71 is expressed preferentially within the CD133+ cancer stem cell-like subpopulation. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL6244

2 Samples

Download data: CEL