Browse
Submit Data
Databases
API
Help

Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

Dataset Information

13 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Distinct and Overlapping Gene Regulatory Networks in BMP- and HDAC-Controlled Cell Fate Determination in the Embryonic Forebrain

ABSTRACT: Both bone morphogenetic proteins (BMPs) and histone deacetylases (HDACs) have previously been established to play a role in the development of the three major cell types of the central nervous system: neurons, astrocytes, and oligodendrocytes. We have previously established a connection between these two protein families, showing that HDACs suppress BMP-promoted astrogliogenesis in the embryonic striatum. Since HDACs act in the nucleus to effect changes in transcription, an unbiased analysis of their transcriptional targets could shed light on their downstream effects on BMP-signaling. Using neurospheres from the embryonic striatum as an in vitro system to analyze this phenomenon, we have performed microarray expression profiling on BMP2- and trichostatin A (TSA)-treated cultures, followed by validation of the findings with quantitative RT-PCR and protein analysis. Neurospheres from the embryonic striatum were used to analyze cellular differentiation into neurons and astrocytes in vitro. To analyze the role of BMP2 and the HDAC-inhibitor TSA in this system, neurospheres were treated with TSA or BMP2 for 24 h, and mRNA was extracted after 6 and 24 h of the respective treatment.

ORGANISM(S): Mus musculus

SUBMITTER: stefan Wolfl

PROVIDER: E-GEOD-31792 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

ACCESS DATA

Json Xml

Similar Datasets

Distinct and Overlapping Gene Regulatory Networks in BMP- and HDAC-Controlled Cell Fate Determination in the Embryonic Forebrain

Project description:Both bone morphogenetic proteins (BMPs) and histone deacetylases (HDACs) have previously been established to play a role in the development of the three major cell types of the central nervous system: neurons, astrocytes, and oligodendrocytes. We have previously established a connection between these two protein families, showing that HDACs suppress BMP-promoted astrogliogenesis in the embryonic striatum. Since HDACs act in the nucleus to effect changes in transcription, an unbiased analysis of their transcriptional targets could shed light on their downstream effects on BMP-signaling. Using neurospheres from the embryonic striatum as an in vitro system to analyze this phenomenon, we have performed microarray expression profiling on BMP2- and trichostatin A (TSA)-treated cultures, followed by validation of the findings with quantitative RT-PCR and protein analysis.

2012-07-01 | GSE31792 | GEO

Wip1 regulates adult neurogenesis and Wnt signaling during aging

Project description:The number of newly-formed neurons declines rapidly during aging. Here we describe an important mechanism that contributes to this decline via Wip1-dependent regulation of neuronal differentiation. We found that Wip1 is expressed in neural stem/progenitor cells (NPCs) of the mouse subventricular zone and its upregulation at physiological levels maintained higher NPC numbers and neuronal differentiation in old mice. This resulted in markedly improved neuron formation and rescued a functional defect in fine odor discrimination in old mice. We identified Dkk3 as a key downstream target of Wip1 and found that its expression in SVZ is restricted to NPCs. Functionally, Dkk3 inhibited neuroblast formation by suppressing Wnt signaling, while deletion of Dkk3 or pharmacological reactivation of the Wnt pathway improved neuron formation and olfactory function in aged mice. We propose that Wip1 controls a Dkk3-dependent inhibition of neuronal differentiation during aging and thus regulating Wip1 levels could prevent certain aspects of functional decline of the aging brain. We found if neurospheres were derived from 18 months old mice, Wip1 transgenic neurospheres were more neurogenic than wt ones. This microarray was a pilot experiment to search the mechanism how Wip1 Transgene promoted neurogenesis, and found Dkk3 as a potential mediator. WT vs Wip1Tg neurospheres were cultured from mouse brain, and gene expression was compared using Illumina mouseWG-6 array

2014-04-26 | E-GEOD-57105 | biostudies-arrayexpress

Dll1 acts as a tumor suppressor in neural stem cells to induce an astroglial lineage-restricted glioblastoma

Project description:There is increasing evidence for tissue stem cells as potential source for cancers. However, the cellular and molecular mechanisms at the origin of this transformation remain elusive. Here we show that Delta-like1 (Dll1) mutation induces the oncogenic transformation of neural stem cell–derived neurospheres into oncogenic spheres capable of generating histological and molecular human glioblastoma (GBM)-like tumors upon subcutaneous and intracranial transplantations into nude mice. Serial transplantation assays suggest that Dll1 spheres tumorigenicity results from the oncogenic transformation of normal neural stem cell into GBM-producing stem cell. Compared differentiation of Dll1 vs. WT spheres shows the presence in Dll1 spheres of a subpopulation of cells which although fated to a glial lineage fail to differentiate terminally, in keeping with the astrocytic promoting function of Delta-Notch. This population of astrocyte progenitors proliferates actively and fails to down-regulate EGFR phosphorylation. These studies suggest that Dll1-induced tumorigenesis is restricted to the astrocytic lineage thereby providing a model for human GBM as well as an explanation for the duality of Notch signaling acting either as an oncogene or a tumor suppressor in stem/progenitor cells derived tumors, depending on the lineage commitment. Comparison between control (WT) and mutants (Dll1-3 and Dll1-5) cells was performed. Two biological replicates (n=3 each replicate) were used, and each replicate (n=3, total RNA pooled) was dye-swaped.

2011-09-23 | E-GEOD-32293 | biostudies-arrayexpress

Expression data from neurospheres derived from the neocortex, striatum and subventricular zones of the adult mouse brain

Project description:Differential gene expression profiles of neurospheres derived from different regions of the adult brain. In this dataset, we include data on triplicated biological samples from each of the following brain regions: neocortex, striatum, and subventricular zone. We also include duplicated data on neurospheres derived from the dorsal and ventralforebrain neural tubes and one spinal cord of E14.5 mouse embryos for comparison.

2013-10-01 | GSE49194 | GEO

Identification of penaeid shrimp hemocyanin acetylation sites

Project description:To identify the acetylation site(s) on hemocyanin (PvHMC) that modulate its functions, purified PvHMC from the plasma of HDACs inhibitor (NAM and TSA) treated shrimp was analyzed by tandem mass spectrometry. Four lysine acetylation sites (K179, K188, K648, and K653) were found on the small molecular weight subunit hemocyanin (PvHMCS) and six sites (K117, K188, K197, K239, K481, and K484) on the large subunit (PvHMCL).

2022-07-19 | PXD030949 | Pride

7.5uM CG-1521 and 5uM TSA treatment of LNCaP Prostate Cancer cells

Project description:Genome wide expression changes following treatment with the HDACs (Histone Deacetylase Inhibitor) CG-1521 (7.5uM) or TSA (Trichostatin A) were investigated to determine regulatory targets and patterns of the HDAC Inhibitors. LNCaP Prostate Cancer cells were treated for a period of 24h with either CG-1521 (7.5uM) or TSA (5uM) following a 24h seeding period. At the selected time point, total RNA was harvested from the cells for hybridization and analysis by Nimblgen Systems Inc using the homo sapiens gene expression array.

2007-09-15 | E-GEOD-8645 | biostudies-arrayexpress

Transcription profiling of mouse primary neural stem cells (neurospheres) originating from separate isolations (individuals), different passages and parallel cultures

Project description:Investigation of transcriptome variability in neurospheres originating from separate isolations (individuals), different passages and parallel cultures. As a control neurospheres were also compared to neurospheres induced to differentiate by adding serum and plating onto solid support.

2005-03-31 | E-MEXP-297 | biostudies-arrayexpress

Transcription profiling of Arabidopsis treated with Histone acetylation during seed germination (GEO Super Series)

Project description:This SuperSeries is composed of the following subset Series:; GSE3783: Trichostatin A (TSA) inhibition of histone deacetylase in Arabiodopsis thaliana; GSE3784: Seed germination in presence and absence of histone deaceatylase inhibitor, Trichostain A (TSA). Histone acetylation is involved in the regulation of gene expression in plants and eukaryotes. Histone deacetylases (HDACs) are enzymes that catalyze the removal of acetyl groups from histones, which is associated with the repression of gene expression. To study the role of histone acetylation in the regulation of gene expression during seed germination, trichostatin A (TSA), a specific inhibitor of histone deacetylase, was used to treat imbibing Arabidopsis thaliana seeds. GeneChip arrays were used to show that TSA induces up-regulation of 45 genes and down-regulation of 27 genes during seed germination. Eight TSA-up-regulated genes were selected for further analysis - RAB18, RD29B, ATEM1, HSP70 and four late embryogenesis abundant protein genes (LEA). A gene expression time course shows that these eight genes are expressed at high levels in the dry seed and repressed upon seed imbibition at an exponential rate. In the presence of TSA, the onset of repression of the eight genes is not affected but the final level of repressed expression is elevated. Chromatin immunoprecipitation and HDAC assays show that there is a transient histone deacetylation event during seed germination at one day after imbibition, which serves as a key developmental signal that affects the repression of the eight genes. Experiment Overall Design: Refer to individual Series

2008-06-12 | E-GEOD-3799 | biostudies-arrayexpress

RNA-seq of Notch signalling inhibition in NS5

Project description:Here we performed a RNA-seq experiment on samples of adherent cultures of mouse neural stem cells (NS5 cell line) under normal growth conditions and after 4 hours of treatment with the gamma-secretase inhibitor LY 411575. This resulted in the generation of a genome-wide mRNA expression pattern and quantification for these cells in the two conditions.

2016-09-09 | E-MTAB-4331 | biostudies-arrayexpress

Transcription profiling of human neurospheres and adherent cells derived from a human glioblastoma multiforme primary tumour

Project description:Comparison of gene expression patterns between neurospheres and adherent cells derived from a glioblastoma multiforme primary tumour

2006-12-31 | E-MEXP-551 | biostudies-arrayexpress

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