GEO DataSets

(Submitter supplied) Malignant glioma is the most common type of primary brain tumor diagnosed annually in 16,000 individuals in the United States. We performed a systematic large-scale transcriptomics data mining study of 9,783 Affymetrix samples from the GeneSapiens database in order to identify those genes that are most glioma-specific as compared to other cancers and normal tissues. We searched for genes that are highly expressed in 322 glioblastoma multiforme tissue samples and 66 anaplastic astrocytomas as compared to 425 samples from histologically normal central nervous system. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL6947

20 Samples

Download data: TXT

(Submitter supplied) Summary: Astrocytomas can be categorized as either low grade or high grade (glioblastoma). Low grade astrocytomas are not generally aggressive tumors whereas glioblastomas are and in turn have a high mortality rate. The purpose of this experiment is to identify genetic differences between the two types. Hypothesis: There will be a difference in RNA expression between high grade and low grade tumors. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Dataset:

GDS2853

Platforms:

GPL96 GPL8300

20 Samples

Download data: CEL

Comparison of low and high grade astrocytoma brain tumors. Results provide insight into the molecular differences between the two types of tumors.

Organism:

Homo sapiens

Type:

Expression profiling by array, count, 3 disease state, 2 other sets

Platform:

GPL8300

Series:

GSE3185

16 Samples

Download data: CEL

(Submitter supplied) ASCL1 is known to act as transcriptional activator of notch signaling pathway. We have found that ASCL1 is over expressed in secondary glioblastoma. In order to delineate its functional role in gliomagensis we have used gene silencing approach to identify genes differentially regulated upon ASCL1 down regulation in U87MG glioma cell line.

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL16356

6 Samples

Download data: CEL

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

Organism:

Mus musculus

Type:

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

Platform:

GPL13112

30 Samples

Download data: BED, FPKM_TRACKING, TXT

(Submitter supplied) We performed genome-wide profiling of oligodendrocyte lineage transcription factor 2 (Olig2) and other histone markers in platelet-derived growth factor subunit B (PDGFB)-induced glioma and genome-occupancy analyses coupled with transcriptome profiling to reveal gene regulatory network.

Organism:

Mus musculus

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL13112

5 Samples

Download data: BED

(Submitter supplied) We performed gene expression profilings of platelet-derived growth factor subunit B (PDGFB)-induced mouse glioma to compare the differential transcriptome profiles between Ctrl-T tumor cells and Olig2cKO tumor cells.

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL13112

15 Samples

Download data: TXT

(Submitter supplied) We performed gene expression pofiling of of Olig2cKO and control glioma tumor and identified significantly changed genes

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL13112

10 Samples

Download data: FPKM_TRACKING

(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 genome tiling array; Other

Platforms:

GPL18573 GPL11154 GPL10123

18 Samples

Download data: H5, TXT, VCF

(Submitter supplied) Primary uveal melanomas show multiple genetic alterations. To determine mutational status of six human primary uveal melanomas, we performed whole exome sequencing (WES) and called Single Nucleotide Polimorphism (SNPs) to identify somatic mutations in these human primary uveal melanomas.

Organism:

Homo sapiens

Type:

Other

Platform:

GPL11154

6 Samples

Download data: VCF

(Submitter supplied) Lack of specific markers for invasive uveal melanoma cells prevents early diagnosis of metastasis, while no systemic treatment options are available for patients with disseminated uveal melanomas. Intra-tumor heterogeneity has been recognized in numerous cancers as the main cause of metastasis development and therapy resistance. However, in uveal melanomas the specific subpopulations and their biological function which influence tumor behavior remained unknown. more...

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL18573

6 Samples

Download data: H5

(Submitter supplied) Primary uveal melanomas show multiple chromosomal aberrations. To identify genome variation in six human primary uveal melanomas, genome wide copy number variation (CNV) analyses were carried out in human primary uveal melanoma samples using array comparative genome hybridization.

Organism:

Homo sapiens

Type:

Genome variation profiling by genome tiling array

Platform:

GPL10123

6 Samples

Download data: TXT

(Submitter supplied) The determinants of the genetic complexity of Glioblastoma are poorly understood. We generated murine Glioblastomas by transforming glial progenitors in the adult brain with PDGF expression and PTEN deletion +/- p53 deletion. PDGF+PTEN-/- tumors developed additional deletions of specific genes in up to 100% of the tumors, whereas PDGF+PTEN-/-p53-/- tumors did not. Cross-species comparison with data from tCGA database and published in Verhaak, 2010, showed that consistent genetic deletions observed in mouse tumors were specific to human Proneural Glioblastoma. more...

Organism:

Mus musculus

Type:

Genome variation profiling by genome tiling array

Platform:

GPL15076

31 Samples

Download data: TXT