Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Expression profiling of glioma initiating cells (GICs) in the sphere and differentiation conditions

ABSTRACT: Glioma initiating cells (GICs) are considered responsible for the therapeutic resistance and recurrence of malignant glioma. To clarify the molecular mechanism of GIC maintenance/differentiation, we established GIC clones from GBM patient tumors having the potential to differentiate into malignant gliomas in mouse intracranial xenograft, and established an in vitro glioma induction system by using serum stimulation. Upon the serum stimulation, the GIC spheres showed increased cellular proliferation, motility, filopodia/lameripodia formation and adhesion to the culture dishes. Simultaneously, the NSC marker proteins such as CD133 and Sox2 were down-regulated, and the astrocyte/glioma marker GFAP and the malignancy marker CD44 dramatically up-regulated. To identify genes/proteins whose expression changes dynamically during the differentiation of GICs into glioma cells, these GICs were subjected to DNA microarray/iTRAQ based integrated proteomics.

ORGANISM(S): Homo sapiens

PROVIDER: GSE43762 | GEO | 2013/01/26

SECONDARY ACCESSION(S): PRJNA187361

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Similar Datasets

Expression profiling of glioma initiating cells (GICs) in the sphere and differentiation conditions

Project description:Glioma initiating cells (GICs) are considered responsible for the therapeutic resistance and recurrence of malignant glioma. To clarify the molecular mechanism of GIC maintenance/differentiation, we established GIC clones from GBM patient tumors having the potential to differentiate into malignant gliomas in mouse intracranial xenograft, and established an in vitro glioma induction system by using serum stimulation. Upon the serum stimulation, the GIC spheres showed increased cellular proliferation, motility, filopodia/lameripodia formation and adhesion to the culture dishes. Simultaneously, the NSC marker proteins such as CD133 and Sox2 were down-regulated, and the astrocyte/glioma marker GFAP and the malignancy marker CD44 dramatically up-regulated. To identify genes/proteins whose expression changes dynamically during the differentiation of GICs into glioma cells, these GICs were subjected to DNA microarray/iTRAQ based integrated proteomics. Within 4 hours of tumor removal from GBM patients, tissues were subjected to GIC preparation. After successive cloning, total RNA from GIC clones (GIC03A and GIC03U) on day 2 or 7 of subculture in NSC medium with or without 10% FCS was subjected to the analysis with Affymetrix microarrays. Simultaneously, the proteins extracted from the same set of cells were subjected to LC-shot gun analyses using the 8-plex iTRAQ method. We sought to obtain the information of the common molecules that were up- or down-regulated during the GSC differentiation process, and functional targets for the early onset of GIC-associated glioma.

2013-01-26 | E-GEOD-43762 | biostudies-arrayexpress

Expression profiling of mouse glioma-initiating cell-like cells (GICs) and non-GICs

Project description:To identify factors involved in glioma-initiating cells (GICs), we compared gene expression between GIC-like cells and non-GICs.

2009-12-01 | GSE17062 | GEO

Expression profiling of mouse glioma-initiating cell-like cells (GICs) and non-GICs

Project description:To identify factors involved in glioma-initiating cells (GICs), we compared gene expression between GIC-like cells and non-GICs. Neural stem cells (NSCs) were transfected with pCMS-EGFP-HRasL61 and pBabe-neo by electroporation and cultured in 0.5 mg/ml neomycin. The GFP-positive stable NSCs (NSCL61s) were purified by flow cytometry. Total RNA was prepared using RNeasy Mini Kit (QIAGEN).

2009-11-30 | E-GEOD-17062 | biostudies-arrayexpress

Expression profiles of mouse glioma-initiating cells.

Project description:To identify factors involved in glioma-initiating cells (GICs), we compared gene expressions between GIC-like cells and non-GICs.

2011-06-01 | GSE28091 | GEO

Expression profiling of sox11-expressing glioma-initiating cell-like cells

Project description:To identify factors involved in tumorigenicity of glioma-initiating cells (GICs), we compared gene expression in GIC-like cells with and without sox11 expression. We established sox11-expressing mouse glioma-initiating cell (GIC)-like cell line (NSCL61s), NSCL61s-sox11, which lost tumorigenicity when transplanted in vivo. We think that genes, which are differently expressed between NSCL61s and NSCL61s-sox11, would be new targets for glioma therapy.

2009-11-30 | E-GEOD-17076 | biostudies-arrayexpress

Expression profiling of sox11-expressing glioma-initiating cell-like cells

Project description:To identify factors involved in tumorigenicity of glioma-initiating cells (GICs), we compared gene expression in GIC-like cells with and without sox11 expression.

2009-12-01 | GSE17076 | GEO

Development of microRNA (miRNA) expression signatures for mouse glioma-initiating cells (GICs)

Project description:To identify a novel miRNA that is aberrantly expressed in GICs, we analyzed differences in miRNA expression between the mouse GICs, NSCL61 and OPCL61, showing characteristic features of cancer stem cell, and their parental cells by miRNA microarrays. neural stem cells, glioma-initiating cells (GICs) from neural stem cells, oligodendrocyte precursor cells, glioma-initiating cells (GICs) from oligodendrocyte precursor cells.

2015-04-07 | E-GEOD-61080 | biostudies-arrayexpress

Development of microRNA (miRNA) expression signatures for human glioma-initiating cells (GICs)

Project description:To identify a novel miRNA that is aberrantly expressed in GICs, we analyzed differences in miRNA expression between the human GICs and glioma cell lines and neural stem cells by miRNA microarrays. We examined the miRNA expression profiles of five human GICs that were obtained from human glioma samples and two human glioma cell lines, U87 and U251, and NSC (neural stem cells) as a control.

2015-04-07 | E-GEOD-61079 | biostudies-arrayexpress

Development of microRNA (miRNA) expression signatures for human glioma-initiating cells (GICs)

2015-04-07 | GSE61079 | GEO

Expression data for KDM1B knockdown in Glioma-Initiating Cells (GICs)

Project description:Glioblastoma (GBM) is the most common and aggressive primary brain tumor in adults, with glioma initiating cells (GICs) implicated to be critical for tumor progression and resistance to therapy. KDM1B is involved in regulating GICs' responses to hypoxia, since over-expression of KDM1B delays the cell growth under hypoxia while knocking-down of KDM1B in GICs promotes their survival and tumorigenic abilities.

2015-12-28 | GSE73573 | GEO

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data