GEO DataSets

(Submitter supplied) Chromosome 1p LOH was seen in one-third of cases. LOH events on chromosomes 11q and 1p were generally accompanied by copy number loss. The one exception was on chromosome 11p, where LOH in all 4 cases was accompanied by normal copy number or diploidy, implying uniparental disomy. Amplification of MYCN was also noted, and also, amplification of a second gene, ALK, in a single case. Keywords: SNP array analysis

Organism:

Homo sapiens

Type:

Genome variation profiling by SNP array; SNP genotyping by SNP array

Platforms:

GPL1266 GPL2641

44 Samples

Download data: CEL, TXT

(Submitter supplied) The genetic aberrations of NB tumor NB99 were determined using the Affymetrix SNP chip 50K array (Hind III).

Organism:

Homo sapiens

Type:

Genome variation profiling by SNP array

Platform:

GPL2004

1 Sample

Download data: CEL

(Submitter supplied) The expression profiles of 64 neuroblastic tumors (mainly neuroblastoma) were determined on Affymetrix chips HG U133 Plus 2.0.

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL570

64 Samples

Download data: CEL

(Submitter supplied) Neuroblastoma in advanced stages is among the most intractable pediatric cancers, even with the recent therapeutic advances. Neruroblastoma harbours a variety of genetic changes, including a high frequency of MYCN amplification, loss of heterozygosity in 1p36 and 11q, and gain of genetic material from 17q, all of which have been implicated in the pathogenesis of neuroblastoma. However, the scarcity of reliable molecular targets has hampered the development of effective therapeutic agents targeting neuroblastoma. more...

Organism:

Homo sapiens

Type:

Genome variation profiling by SNP array

Platforms:

GPL2005 GPL2004 GPL3718

262 Samples

Download data: CEL, CHP

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

Organism:

Homo sapiens

Type:

Expression profiling by array; Genome variation profiling by SNP array; SNP genotyping by SNP array

Platforms:

GPL2004 GPL570

53 Samples

Download data: CEL

(Submitter supplied) Gene expression analysis was performed on 30 Neuroblastomas to identify genes whose transcription is significantly altered by recurrent chromosomal alterations. Genomic copy number losses and gains had been delineated in the tumours using FISH and SNP arrays. We have identified genes significantly altered by 7 recurrent alterations: 1p, 3p, 4p, 10q and 11q loss, 2p and 17q gain, and genes co-amplified and over-expressed as a result of MYCN amplification. more...

Organism:

Homo sapiens

Type:

Genome variation profiling by SNP array; SNP genotyping by SNP array

Platform:

GPL2004

23 Samples

Download data: CEL

(Submitter supplied) Gene expression analysis was performed on 30 Neuroblastomas to identify genes whose transcription is significantly altered by recurrent chromosomal alterations. Genomic copy number losses and gains had been delineated in the tumours using FISH and SNP arrays. We have identified genes significantly altered by 7 recurrent alterations: 1p, 3p, 4p, 10q and 11q loss, 2p and 17q gain, and genes co-amplified and over-expressed as a result of MYCN amplification. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL570

30 Samples

Download data: CEL

(Submitter supplied) Stromal contamination is one of the major confounding factors in the analysis of primary solid tumor samples by single nucleotide polymorphism (SNP) arrays. As we propose to employ genome-wide SNP microarray analysis as a diagnostic platform for neuroblastoma, the sensitivity, specificity, and accuracy of these studies must be optimized. In order to investigate the effects of stroma, we derived early passage cell lines from nine primary tumors and compared their genomic signature with that of the primary tumors by 100K SNP array analysis. more...

Organism:

Homo sapiens

Type:

Genome variation profiling by SNP array; SNP genotyping by SNP array

Platforms:

GPL2004 GPL2005

54 Samples

Download data: CEL

(Submitter supplied) BACKGROUND: Cervical carcinoma develops as a result of multiple genetic alterations. Different studies investigated genomic alterations in cervical cancer mainly by means of metaphase comparative genomic hybridization (mCGH) and microsatellite marker analysis for the detection of loss of heterozygosity (LOH). Currently, high throughput methods such as array comparative genomic hybridization (array CGH), single nucleotide polymorphism array (SNP array) and gene expression arrays are available to study genome-wide alterations. more...

Organism:

Homo sapiens

Type:

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

Platforms:

GPL2641 GPL4012 GPL201

40 Samples

Download data: CEL, GPR

(Submitter supplied) The specific genes that influence neuroblastoma biology and are targeted by genomic alterations remain largely unknown. We quantified mRNA expression in a highly annotated series of 101 prospectively collected diagnostic neuroblastoma primary tumors and the expression profiles were determined using Affymetrix U95Av2 arrays. Comparisons between the sample groups allow the identification of genes with localized expression patterns. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL8300

102 Samples

Download data: CEL

(Submitter supplied) Neuroblastoma is an embryonal tumor arising from the neural crest. It can be mimicked in mice by neural crest-specific overepxression of oncogenes such as MYCN or mutated ALK.

Organism:

Mus musculus

Type:

Expression profiling by array

Dataset:

GDS4621

Platform:

GPL1261

13 Samples

Download data: CEL

Analysis of neuroblastomas (NB) induced by mutated anaplastic lymphoma kinase (ALKF1174L), MYCN, or both oncogenes. ALK is a gene normally expressed in the developing nervous system. Results provide insight into the role of mutated ALK in tumorigenesis.

Organism:

Mus musculus

Type:

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

Platform:

GPL1261

Series:

GSE32386

13 Samples

Download data: CEL

(Submitter supplied) The ALK^F1174L mutation is associated with intrinsic and acquired resistance to crizotinib and cosegregates with MYCN in neuroblastoma. In this study, we generated a mouse model overexpressing ALK^F1174L in the neural crest. Comapred to mice expressing ALK^F1174L or MYCN alone, combined expression of the two aberrations led to development of neuroblastoma with a shorter latency and higher penetrance. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL10787

10 Samples

Download data: TXT

(Submitter supplied) Although a number of genes related to melanoma development have been identified through candidate gene screening approaches, few studies have attempted to conduct such analyses on a genome-wide scale. Here we use Illumina 317K whole-genome single-nucleotide polymorphism arrays to define a comprehensive allelotype of melanoma based on loss of heterozygosity (LOH) and copy number changes in a panel of 76 melanoma cell lines. more...

Organism:

Homo sapiens

Type:

Genome variation profiling by SNP array; SNP genotyping by SNP array

Platform:

GPL5711

76 Samples

Download data

(Submitter supplied) Neuroblastoma is an embryonal neoplasm that remains of dramatic prognosis in its aggressive forms. Activating mutations of the ALK tyrosine kinase receptor have been identified in sporadic and familial cases of this cancer. We generated knock-in mice carrying the two most frequent Alk mutations observed in neuroblastoma patients. We used microarrays to detail the global programme of gene expression underlying the impact of ALK mutations on neuroblastoma formation in a MYCN amplified background.

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL16225

31 Samples

Download data: CEL

(Submitter supplied) We analysed, by last-generation high-resolution SNP arrays, Normal Karyotype (NK)-AML patients at diagnosis (Dx) and remission (R) phases, in order to determine the number of tumor-associated copy number abnormalities (CNAs) and copy neutral-loss of heterozygosity (CN-LOH) regions per patient and to identify possible recurring genomic abnormalities. The number of tumor-associated CNAs was detemined after comparison of 11 matched Dx/R samples using stringent conditions able to reduce the number of false positive CNAs. more...

Organism:

Homo sapiens

Type:

Genome variation profiling by SNP array; SNP genotyping by SNP array

Platform:

GPL6801

30 Samples

Download data: CEL, CNCHP, TXT

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

Organism:

Homo sapiens

Type:

Expression profiling by array; Genome variation profiling by SNP array

Platforms:

GPL570 GPL3720

42 Samples

Download data: CEL

(Submitter supplied) Introduction: A major challenge in the interpretation of genomic profiling data generated from breast cancer samples is the identification of driver genes as distinct from bystander genes which do not impact tumorigenesis. One way to assess the relative importance of alterations in the transcriptome profile is to combine complementary analyses that assess changes in the copy number alterations (CNAs). more...

Organism:

Homo sapiens

Type:

Genome variation profiling by SNP array

Platform:

GPL3720

22 Samples

Download data: CEL

(Submitter supplied) Introduction: A major challenge in the interpretation of genomic profiling data generated from breast cancer samples is the identification of driver genes as distinct from bystander genes which do not impact tumorigenesis. One way to assess the relative importance of alterations in the transcriptome profile is to combine complementary analyses that assess changes in the copy number alterations (CNAs). more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL570

20 Samples

Download data: CEL

(Submitter supplied) To characterize gene expression in esophageal squamous cell carcinoma, we examined gene expression in tumor and matched normal adjacent tissue from 17 ESCC patients from a high-risk region of China.

Organism:

Homo sapiens

Type:

Expression profiling by array

Dataset:

GDS3838

Platform:

GPL571

34 Samples

Download data: CEL