E-GEOD-28451
Ontology highlight
ABSTRACT:
OTHER RELATED OMICS DATASETS IN: PRJNA143235PRJNA139231PRJNA143233PRJNA143237PRJNA232935
PROVIDER: E-GEOD-28451 | ExpressionAtlas | 2015-02-24
REPOSITORIES: ExpressionAtlas
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| E-GEOD-28451-analysis-methods.tsv | Tabular | |||
| E-GEOD-28451-atlasExperimentSummary.Rdata | Rdata | |||
| E-GEOD-28451-configuration.xml | Xml | |||
| E-GEOD-28451-percentile-ranks.tsv | Tabular | |||
| E-GEOD-28451.condensed-sdrf.tsv | Tabular |
Items per page: 5 1 - 5 of 57 |
Similar Datasets
Project description:To compare the transcriptional networks governed by Sox2 in embryonic stem (ES) cells and trophoblast stem (TS) cells, we performed whole-genome expression analysis after tetracycline (Tet)-induced knockout of Sox2 in each cell type. A Tet-inducible Sox2 knockout ES cell line 2TS22C or its derivative TSC line 22CEROH2-TSC1 were treated with Tet for 4 days. A total of 12 samples from ES or TS cells cultured with or without Tet were analyzed in three biological replicates.
2013-10-17 | E-GEOD-28451 | biostudies-arrayexpress
Project description:Conditional knockout of Sox2 in embryonic and trophoblast stem cells.
| PRJNA143237 | ENA
Project description:Chickarmane2006 - Stem cell switch reversible
Kinetic modeling approach of the transcriptional dynamics of the embryonic stem cell switch.
This model is described in the article:
Transcriptional dynamics of the embryonic stem cell switch.
Chickarmane V, Troein C, Nuber UA, Sauro HM, Peterson C
PLoS Computational Biology. 2006; 2(9):e123
Abstract:
Recent ChIP experiments of human and mouse embryonic stem cells have elucidated the architecture of the transcriptional regulatory circuitry responsible for cell determination, which involves the transcription factors OCT4, SOX2, and NANOG. In addition to regulating each other through feedback loops, these genes also regulate downstream target genes involved in the maintenance and differentiation of embryonic stem cells. A search for the OCT4-SOX2-NANOG network motif in other species reveals that it is unique to mammals. With a kinetic modeling approach, we ascribe function to the observed OCT4-SOX2-NANOG network by making plausible assumptions about the interactions between the transcription factors at the gene promoter binding sites and RNA polymerase (RNAP), at each of the three genes as well as at the target genes. We identify a bistable switch in the network, which arises due to several positive feedback loops, and is switched on/off by input environmental signals. The switch stabilizes the expression levels of the three genes, and through their regulatory roles on the downstream target genes, leads to a binary decision: when OCT4, SOX2, and NANOG are expressed and the switch is on, the self-renewal genes are on and the differentiation genes are off. The opposite holds when the switch is off. The model is extremely robust to parameter changes. In addition to providing a self-consistent picture of the transcriptional circuit, the model generates several predictions. Increasing the binding strength of NANOG to OCT4 and SOX2, or increasing its basal transcriptional rate, leads to an irreversible bistable switch: the switch remains on even when the activating signal is removed. Hence, the stem cell can be manipulated to be self-renewing without the requirement of input signals. We also suggest tests that could discriminate between a variety of feedforward regulation architectures of the target genes by OCT4, SOX2, and NANOG.
This model is hosted on BioModels Database
and identified by: MODEL7957907314
.
To cite BioModels Database, please use: BioModels Database: An enhanced, curated and annotated resource for published quantitative kinetic models
.
To the extent possible under law, all copyright and related or neighbouring rights to this encoded model have been dedicated to the public domain worldwide. Please refer to CC0 Public Domain Dedication
for more information.
2024-09-02 | BIOMD0000000203 | BioModels
Project description:Chickarmane2006 - Stem cell switch irreversible
Kinetic modeling approach of the transcriptional dynamics of the embryonic stem cell switch.
This model is described in the article:
Transcriptional dynamics of the embryonic stem cell switch.
Chickarmane V, Troein C, Nuber UA, Sauro HM, Peterson C
PLoS Computational Biology. 2006; 2(9):e123
Abstract:
Recent ChIP experiments of human and mouse embryonic stem cells have elucidated the architecture of the transcriptional regulatory circuitry responsible for cell determination, which involves the transcription factors OCT4, SOX2, and NANOG. In addition to regulating each other through feedback loops, these genes also regulate downstream target genes involved in the maintenance and differentiation of embryonic stem cells. A search for the OCT4-SOX2-NANOG network motif in other species reveals that it is unique to mammals. With a kinetic modeling approach, we ascribe function to the observed OCT4-SOX2-NANOG network by making plausible assumptions about the interactions between the transcription factors at the gene promoter binding sites and RNA polymerase (RNAP), at each of the three genes as well as at the target genes. We identify a bistable switch in the network, which arises due to several positive feedback loops, and is switched on/off by input environmental signals. The switch stabilizes the expression levels of the three genes, and through their regulatory roles on the downstream target genes, leads to a binary decision: when OCT4, SOX2, and NANOG are expressed and the switch is on, the self-renewal genes are on and the differentiation genes are off. The opposite holds when the switch is off. The model is extremely robust to parameter changes. In addition to providing a self-consistent picture of the transcriptional circuit, the model generates several predictions. Increasing the binding strength of NANOG to OCT4 and SOX2, or increasing its basal transcriptional rate, leads to an irreversible bistable switch: the switch remains on even when the activating signal is removed. Hence, the stem cell can be manipulated to be self-renewing without the requirement of input signals. We also suggest tests that could discriminate between a variety of feedforward regulation architectures of the target genes by OCT4, SOX2, and NANOG.
This model is hosted on BioModels Database
and identified by: MODEL7957942740
.
To cite BioModels Database, please use: BioModels Database: An enhanced, curated and annotated resource for published quantitative kinetic models
.
To the extent possible under law, all copyright and related or neighbouring rights to this encoded model have been dedicated to the public domain worldwide. Please refer to CC0 Public Domain Dedication
for more information.
2024-09-02 | BIOMD0000000204 | BioModels
Project description:To compare the transcriptional networks governed by Sox2 in embryonic stem (ES) cells and trophoblast stem (TS) cells, we performed whole-genome expression analysis after tetracycline (Tet)-induced knockout of Sox2 in each cell type.
2013-10-17 | GSE28451 | GEO
Project description:To understand the mechanism underlying the versatility in transcriptional regulation by Sox2, we compared genome-wide binding sites of Sox2 in embryonic stem (ES) cells and trophoblast stem (TS) cells by chromatin immunoprecipitation followed by high-throughput sequencing (ChIP-seq). A tetracycline-inducible Oct3/4 knockout ES cell line ZHBTc4 was treated with Tet for 4 days in the presence of FGF4 and mouse embryonic fibroblasts (MEFs).
2013-10-17 | E-GEOD-28453 | biostudies-arrayexpress
Project description:In this experiment the relationship between SOX2 levels and WNT-induced gene expression was assayed using RNA-seq during embryonic stem cell differentiation. A doxycycline inducible cell line (SOX2 TetON) was employed to experimentally control SOX2 expression.
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