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Homo sapiens
12 Downloadable Samples
Affymetrix Human Genome U133A 2.0 Array (hgu133a2)
Description
Glioma cells are sensitized to the alkylator temozolomide after exposure to IFN-beta. In glioma-initiating cells (GIC), IFN-beta alone reduces clonogenicity. We investigated differentially expressed genes with or without IFN exposure in either longterm glioma cells or GIC.
Publication Title
Interferon-β induces loss of spherogenicity and overcomes therapy resistance of glioblastoma stem cells.
Sample Metadata Fields
Specimen part, Cell line
View Samples- Homo sapiens
- 2 Downloadable Samples
- Affymetrix Human Gene 2.0 ST Array (hugene20st)
Description
In this study we investigated the changes in mRNA expression upon treatment of SH-SY5Y cells to 10M cisplatin for 72h.
Publication Title
Calcium-regulatory proteins as modulators of chemotherapy in human neuroblastoma.
Sample Metadata Fields
Specimen part, Cell line, Treatment
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GSE5675- Homo sapiens
- 40 Downloadable Samples
- Affymetrix Human Genome U133 Plus 2.0 Array (hgu133plus2)
Description
Pilocytic astrocytomas (PAs) are the most common glioma in children. While many PAs are slow growing or clinically indolent, others exhibit more aggressive features with tumor recurrence and death. In order to identify genetic signatures that might predict PA clinical behavior, we performed gene expression profiling on 41 primary PAs arising sporadically and in patients with neurofibromatosis type 1 (NF1). While no expression signature was found that could discriminate clinically-aggressive or recurrent tumors from more indolent cases, PAs arising in patients with NF1 did exhibit a unique gene expression pattern. In addition, we identified a gene expression signature that stratified PAs by location (supratentorial versus infratentorial).
Publication Title
Distinct genetic signatures among pilocytic astrocytomas relate to their brain region origin.
Sample Metadata Fields
No sample metadata fields
View Samples- Mus musculus
- 6 Downloadable Samples
- Affymetrix Mouse Genome 430 2.0 Array (mouse4302)
Description
Affymetrix Mouse Genome 430 2.0 GeneChip microarrays were used to analyze murine neocortical and cerbellar astrocytes generated from postnatal (PN) day 1 wild-type (ICR) pups.
Publication Title
Distinct genetic signatures among pilocytic astrocytomas relate to their brain region origin.
Sample Metadata Fields
No sample metadata fields
View Samples- Homo sapiens
- 21 Downloadable Samples
- Affymetrix Human Genome U95 Version 2 Array (hgu95av2)
Description
To characterize the molecular origin of primary lymphomas of the central nervous system (PCNSL), 21 PCNSL of immunocompetent patients were investigated by microarray-based gene expression profiling. Comparison of the transcriptional profile of PCNSL with various normal and neoplastic B cell subsets demonstrated PCNSL (i) to display gene expression patterns most closely related to late germinal center B cells, (ii) to display a gene expression profile similar to systemic diffuse large B cell lymphomas (DLBCL), and (iii) to be in part assigned to the activated B cell-like (ABC) or the germinal center B cell-like (GCB) subtype of DLBCL.
Publication Title
Gene expression profiling suggests primary central nervous system lymphomas to be derived from a late germinal center B cell.
Sample Metadata Fields
No sample metadata fields
View Samples- Homo sapiens
- 68 Downloadable Samples
- Affymetrix Human Genome U133 Plus 2.0 Array (hgu133plus2)
Description
Gene expression profiling revealed over-representation of a distinct (proneural-like) expression signature in long-term survivors that was linked to IDH1/2 mutation. However, among the IDH1/2-wildtype patients, tumors from long-term survivors did not show distinct gene expression profiles and included proneural, classical and mesenchymal glioblastoma subtypes.
Publication Title
Molecular characterization of long-term survivors of glioblastoma using genome- and transcriptome-wide profiling.
Sample Metadata Fields
Specimen part
View Samples- Homo sapiens
- 134 Downloadable Samples
- Affymetrix Human Genome U133 Plus 2.0 Array (hgu133plus2)
Description
Molecular profiling of cerebral gliomas distinguishes biologically distinct tumor groups and provides prognostically relevant information beyond histological classification and IDH1/2 mutation status.
Publication Title
Molecular classification of diffuse cerebral WHO grade II/III gliomas using genome- and transcriptome-wide profiling improves stratification of prognostically distinct patient groups.
Sample Metadata Fields
Disease
View Samples- Mus musculus
- 24 Downloadable Samples
- Affymetrix Mouse Genome 430 2.0 Array (mouse4302)
Description
Triggering of B cell receptors (BCR) induces a massive synthesis of NFATc1 in splenic B cells. By inactivating the Nfatc1 gene and re-expressing NFATc1 we show that NFATc1 levels are critical for the survival of splenic B cells upon BCR stimulation. NFATc1 ablation led to decreased BCR-induced Ca++ flux and proliferation of splenic B cells, increased apoptosis and suppressed germinal centre formation and immunoglobulin class switch by T cell-independent antigens. By controlling IL-10 synthesis in B cells, NFATc1 supported the proliferation and IL-2 synthesis of T cells in vitro and appeared to contribute to the mild clinical course of Experimental Autoimmune Encephalomyelitis in mice bearing NFATc1-/- B cells. These data indicate NFATc1 as a key factor controlling B cell function.
Publication Title
NFATc1 affects mouse splenic B cell function by controlling the calcineurin--NFAT signaling network.
Sample Metadata Fields
Specimen part
View Samples- Homo sapiens
- 26 Downloadable Samples
- Affymetrix Human Genome U133 Plus 2.0 Array (hgu133plus2)
Description
Whole exome sequencing identified frequent driver mutations in a series of paediatric glioblastomas
Publication Title
Driver mutations in histone H3.3 and chromatin remodelling genes in paediatric glioblastoma.
Sample Metadata Fields
Sex, Age, Disease, Disease stage
View Samples- Homo sapiens
- 46 Downloadable Samples
- Affymetrix Human Genome U133 Plus 2.0 Array (hgu133plus2)
Description
Glioblastoma (GBM) is an incurable brain tumor carrying a dismal prognosis, which displays considerable heterogeneity. We have recently identified recurrent H3F3A mutations affecting two critical positions of histone H3.3 (K27, G34) in one-third of pediatric GBM. Here we show that each of these H3F3A mutations defines an epigenetic subgroup of GBM with a distinct global methylation pattern, and are mutually exclusive with IDH1 mutation (characterizing a CpG-Island Methylator Phenotype (CIMP) subgroup). Three further epigenetic subgroups were enriched for hallmark genetic events of adult GBM (EGFR amplification, CDKN2A/B deletion) and/or known transcriptomic signatures. We also demonstrate that the two H3F3A mutations give rise to GBMs in separate anatomic compartments, with differential regulation of OLIG1/2 and FOXG1, possibly reflecting different cellular origins.
Publication Title
Hotspot mutations in H3F3A and IDH1 define distinct epigenetic and biological subgroups of glioblastoma.
Sample Metadata Fields
Sex
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