Browse
Submit Data
Databases
API
Help

Unknown,Transcriptomics,Genomics,Proteomics

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Transcription profiling of brain and gut neurospheres of wild type and Bmi-1 knockout mice to reveal that Bmi-1 dependence distinguishes neural stem cell self-renewal from progenitor proliferation.

ABSTRACT: The cRNA derived from Brain and Gut neurospheres of wild type and BMI-1 knockout mice were hybridized to Affymetrix mouse ver 2 Chips A, B and C. In case of brain neurospheres, the cRNA were generated by one round RNA amplification (conventional method). In contrast, the cRNA of Gut neurospheres were generated by two round RNA amplifications.

ORGANISM(S): Mus musculus

SUBMITTER: Toshihide Iwashita

PROVIDER: E-GEOD-611 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

ACCESS DATA

Json Xml

Publications

Bmi-1 dependence distinguishes neural stem cell self-renewal from progenitor proliferation.

Molofsky Anna V AV Pardal Ricardo R Iwashita Toshihide T Park In-Kyung IK Clarke Michael F MF Morrison Sean J SJ

Nature 20031022 6961

Stem cells persist throughout life by self-renewing in numerous tissues including the central and peripheral nervous systems. This raises the issue of whether there is a conserved mechanism to effect self-renewing divisions. Deficiency in the polycomb family transcriptional repressor Bmi-1 leads to progressive postnatal growth retardation and neurological defects. Here we show that Bmi-1 is required for the self-renewal of stem cells in the peripheral and central nervous systems but not for thei ...[more]

PMID: 14574365

Similar Datasets

Neurospheres of WT and BMI-1 KO

Project description:The cRNA derived from Brain and Gut neurospheres of wild type and BMI-1 knockout mice were hybridized to Affymetrix mouse ver 2 Chips A, B and C. In case of brain neurospheres, the cRNA were generated by one round RNA amplification (conventional method). In contrast, the cRNA of Gut neurospheres were generated by two round RNA amplifications. Keywords: parallel sample

2003-10-14 | GSE611 | GEO

Quantitative profiling of axonal guidance proteins during the differentiation of human neurospheres

Project description:Axon guidance is required for the establishment of brain circuits. Whether much of the molecular basis of axon guidance is known from animal models, the molecular machinery coordinating axon growth and pathfinding in humans remains to be elucidated. The use of induced pluripotent stem cells (iPSC) from human donors has revolutionized in vitro studies of the human brain. iPSC can be differentiated into neuronal stem cells which can be used to generate neural tissue-like cultures, known as neurospheres, that reproduce, in many aspects, the cell types and molecules present in the brain. Here, we analyzed quantitative changes in the proteome of neurospheres during differentiation. Relative quantification was performed at early time points during differentiation using iTRAQ-based labeling and LC-MS/MS analysis. We identified 6438 proteins, from which 433 were downregulated and 479 were upregulated during differentiation. We show that human neurospheres have a molecular profile that correlates to the fetal brain. During differentiation, upregulated pathways are related to neuronal development and differentiation, cell adhesion and axonal guidance whereas cell proliferation pathways were downregulated. We developed a functional assay to check for neurite outgrowth in neurospheres and confirmed that neurite outgrowth potential is increased after 10 days of differentiation and is enhanced by increasing cyclic AMP levels. The proteins identified here represent a resource to monitor neurosphere differentiation and coupled to the neurite outgrowth assay can be used to functionally explore neurological disorders using human neurospheres as a model.

2021-02-25 | PXD024177 | Pride

p107 knockout vs. wild type neurospheres

Project description:The ganglionic eminence was dissected and neurospheres were cultured from the brain of E13.5 embroys. RNA was isolated from neurospheres cultured from p107-/- embryos and their wildtype littermates. P107 knockout mice have previously been shown to have an increased number of stem cells and enhanced stem cell self renewal. With the microarray experiment we are hoping to discover the genes involved in stem cell number and self renewal along with p107. Keywords: other

2005-12-09 | GSE3779 | GEO

Primarily cultured neurospheres

Project description:Primarily cultured neurospheres

| PRJNA599138 | ENA

Bmi-1 dependence distinguishes neural stem cell self-renewal from progenitor proliferation.

Project description:Stem cells persist throughout life by self-renewing in numerous tissues including the central and peripheral nervous systems. This raises the issue of whether there is a conserved mechanism to effect self-renewing divisions. Deficiency in the polycomb family transcriptional repressor Bmi-1 leads to progressive postnatal growth retardation and neurological defects. Here we show that Bmi-1 is required for the self-renewal of stem cells in the peripheral and central nervous systems but not for their survival or differentiation. The reduced self-renewal of Bmi-1-deficient neural stem cells leads to their postnatal depletion. In the absence of Bmi-1, the cyclin-dependent kinase inhibitor gene p16Ink4a is upregulated in neural stem cells, reducing the rate of proliferation. p16Ink4a deficiency partially reverses the self-renewal defect in Bmi-1-/- neural stem cells. This conserved requirement for Bmi-1 to promote self-renewal and to repress p16Ink4a expression suggests that a common mechanism regulates the self-renewal and postnatal persistence of diverse types of stem cell. Restricted neural progenitors from the gut and forebrain proliferate normally in the absence of Bmi-1. Thus, Bmi-1 dependence distinguishes stem cell self-renewal from restricted progenitor proliferation in these tissues.

| S-EPMC2614897 | biostudies-literature

E2F4 wt and knockout neurospheres

Project description:E2F4 wild and knockout type neurospheres from E12.5 forebrain. E2F4 transcription factor regulates the expression of the genes which are required for neural stem cell expansion in the developing mouse brain. The results of microarray analysis will help to identify the signaling pathways affected by E2F4 deletion and refine the neural stem cell regulatory mechanism. Keywords: other

2008-02-13 | GSE10401 | GEO

Human neurospheres ZIKV infection

Project description:Zika virus (ZIKV) has been associated with microcephaly and other brain abnormalities; however, the molecular consequences of ZIKV to human brain development are still not fully understood. Here we describe alterations in human neurospheres derived from induced pluripotent stem (iPS) cells infected with the strain of Zika virus that is circulating in Brazil. Combining proteomics and mRNA transcriptional profiling, over 500 proteins and genes associated with the Brazilian ZIKV infection were found to be differentially expressed. These genes and proteins provide an interactome map, which indicates that ZIKV controls the expression of RNA processing bodies, miRNA biogenesis and splicing factors required for self-replication. It also suggests that impairments in the molecular pathways underpinning cell cycle and neuronal differentiation are caused by ZIKV. These results point to biological mechanisms implicated in brain malformations, which are important to further the understanding of ZIKV infection and can be exploited as therapeutic potential targets to mitigate it.

2018-08-29 | PXD010866 | Pride

Transcription profiling of CD133/Prominin positive neurospheres

Project description:To identify expression of hematopoetic stem cell antigens in cerebral cortical derived neurospheres Keywords: Compared CD133 positive neurospheres to control GFP-positive neurospheres

2006-10-01 | GSE5171 | GEO

Mouse neurospheres

Project description:Seven day old platelet-derived growth factor-generated neurospheres cultured from the embryonic ganglia Keywords: other

2008-03-01 | GSE10614 | GEO

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

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

Tweets

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