GEO DataSets

(Submitter supplied) Comprehensive expression profiling of disseminated neuroblastoma with favorable and unfavorable outcome using SAGE. Results provide insight into the molecular pathogenesis of spontaneous regression and progression of metastatic neuroblastoma and may be used for improving risk estimation of patients with disseminated neuroblastoma. Keywords: gene expression SAGE-based, neuroblastoma, primary tumor, disseminated disease

Organism:

Homo sapiens

Type:

Expression profiling by SAGE

Platform:

GPL4

9 Samples

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(Submitter supplied) Background: One of the main fields of lung cancer research is identifying patients who are at high risk of post-resection recurrence. Individual recurrence risk evaluation by accurate but simple and reproducible method is needed for the clinical practice. Results: The log-rank test and further selection by our criteria of assayability generated 87 genes from microarray data with significant level 5%. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL570

138 Samples

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(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) Tumor tissue heterogeneity is a well known feature of several solid tumors. Neuroblastic Tumors (NTs) is a group of paediatric cancers with a great tissue heterogeneity. Most of NTs are composed of undifferentiated, poorly differentiated or differentiating neuroblastic (Nb) cells with very few or absent Schwannian stromal (SS) cells: these tumors are grouped as Neuroblastoma (Schwannian stroma-poor). more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL96

28 Samples

Download data: CEL

(Submitter supplied) Background Clinically useful molecular markers predicting the clinical course of patients diagnosed with non-muscle invasive bladder cancer are needed to improve treatment outcome. Methods We used custom designed oligonucleotide microarrays to validate four previously reported gene expression signatures for molecular diagnosis of disease stage and carcinoma in situ, and for predicting disease recurrence and progression. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL4060

808 Samples

Download data: TXT

(Submitter supplied) The prognosis of children with metastatic stage 4 neuroblastoma (NB) has remained poor in the past decade. Using microarray analyses of 342 primary tumors, we here developed and validated an easy to use gene expression-based risk score including 18 genes, which can robustly predict the outcome of stage 4 patients. This classifier was a significant predictor of overall survival in two independent validation cohorts (cohort 1 (n=214): P=6.3x10-5; cohort 2 (n=27): P=3.1x10-2). more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL16876

27 Samples

Download data: TXT

(Submitter supplied) In the present study we evaluated the miRNA expression profile of 31 high risk, stage 4 neuroblastoma patients.

Organism:

Homo sapiens

Type:

Non-coding RNA profiling by array

Platform:

GPL8227

31 Samples

Download data: TXT

(Submitter supplied) We performed array CGH in high-risk neuroblastoma tumors in order to compare genome aberrations with expression of small non-coding RNAs.

Organism:

Homo sapiens

Type:

Genome variation profiling by array

Platforms:

GPL2873 GPL5477

33 Samples

Download data: TXT

(Submitter supplied) Reference1: Ohira M, Oba S, Nakamura Y, Isogai E, Kaneko S, Nakagawa A, Hirata T, Kubo H, Goto T, Yamada S, Yoshida Y, Fuchioka M, Ishii S, Nakagawara A. Expression profiling of human primary Expression profiling using a tumor-specific cDNA microarray predicts the prognosis of intermediate risk neuroblastomas. Cancer Cell. 2005 Apr;7(4):337-50. To predict the prognosis of neuroblastoma patients and choose a better therapeutic protocol, we developed a cDNA microarray carrying 5340 genes obtained from primary neuroblastomas and examined 136 tumor samples. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platforms:

GPL1874 GPL1875

186 Samples

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(Submitter supplied) This data series describes expression data for eight paired, control and treated cell cultures obtained on independent occasions. NG108 rat neuronal cell cultures were exposed to either 0.25% DMSO (control) or 4400 ng/ml mefloquine (treated) for two hours. Validation: Modulation of the following transcripts by mefloquine was confirmed by semi-quantitative RT-PCR: U30186, X63594cds_g_at, X63594cds_at, X17163cds_s_at, rc_AI175959 and rc_AA945867 (unpaired, unequal variance, one tailed t-test, p < 0.05). more...

Organism:

Rattus norvegicus

Type:

Expression profiling by array

Dataset:

GDS199

Platform:

GPL89

16 Samples

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Neuroblastoma cells NG108 exposed to a physiological dose (4400 ng/ml) of antimalarial mefloquine (Lariam), or 0.25% DMSO (control), for 2 hours. Mefloquine appears to disrupt neuronal function through disrupted calcium homeostasis and ER stress.

Organism:

Rattus norvegicus

Type:

Expression profiling by array, count, 2 agent sets

Platform:

GPL89

Series:

GSE39

16 Samples

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(Submitter supplied) Metastatic relapse is the major cause of death in neuroblastoma (NB), yet there are no therapies to specifically target metastases. To understand the molecular mechanisms mediating NB metastasis, we developed a mouse model using intracardiac injection and in vivo selection to isolate metastatic subpopulations that exhibited a higher propensity for bone and central nervous system metastases. Gene expression profiling revealed two distinct subtypes, primary and metastatic, with differential regulation of 412 genes and multiple pathways including CADM1, SPHK1, and YAP/TAZ whose expression independently predicted survival. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL570

16 Samples

Download data: CEL

(Submitter supplied) Genomic information from human patient samples of pediatric neuroblastoma cancers and known outcomes have led to specific gene lists put forward as high risk for disease progression. However, the reliance on gene expression correlations rather than mechanistic insight has shown limited potential and suggests a critical need for molecular network models that better predict neuroblastoma progression. In this study, we construct and simulate a molecular network of developmental genes and downstream signals in a 6-gene input logic model that predicts a favorable/unfavorable outcome based on the outcome of the four cell states including cell differentiation, proliferation, apoptosis, and angiogenesis. We simulate the mis-expression of the tyrosine receptor kinases, trkA and trkB, two prognostic indicators of neuroblastoma, and find differences in the number and probability distribution of steady state outcomes. We validate the mechanistic model assumptions using RNAseq of the SHSY5Y human neuroblastoma cell line to define the input states and confirm the predicted outcome with antibody staining. Lastly, we apply input gene signatures from 77 published human patient samples and show that our model makes more accurate disease outcome predictions for early stage disease than any current neuroblastoma gene list. These findings highlight the predictive strength of a logic-based model based on developmental genes and offer a better understanding of the molecular network interactions during neuroblastoma disease progression.

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL16791

3 Samples

Download data: TXT