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Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

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Chromatin Structure and Gene Expression Programs of Human Embryonic and Induced Pluripotent Stem Cells

ABSTRACT: This SuperSeries is composed of the following subset Series: GSE23402: Chromatin Structure and Gene Expression Programs of Human Embryonic and Induced Pluripotent Stem Cells (Affymetrix) GSE23455: Chromatin Structure and Gene Expression Programs of Human Embryonic and Induced Pluripotent Stem Cells (ChIP-seq) Refer to individual Series

ORGANISM(S): Homo sapiens

SUBMITTER: Garrett Frampton

PROVIDER: E-GEOD-22499 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Chromatin structure and gene expression programs of human embryonic and induced pluripotent stem cells.

Guenther Matthew G MG Frampton Garrett M GM Soldner Frank F Hockemeyer Dirk D Mitalipova Maya M Jaenisch Rudolf R Young Richard A RA

Cell stem cell 20100801 2

Knowledge of both the global chromatin structure and the gene expression programs of human embryonic stem cells (ESCs) and induced pluripotent stem cells (iPSCs) should provide a robust means to assess whether the genomes of these cells have similar pluripotent states. Recent studies have suggested that ESCs and iPSCs represent different pluripotent states with substantially different gene expression profiles. We describe here a comparison of global chromatin structure and gene expression data f ...[more]

PMID: 20682450

Similar Datasets

Chromatin Structure and Gene Expression Programs of Human Embryonic and Induced Pluripotent Stem Cells (ChIP-seq)

Project description:Knowledge of both the global chromatin structure and the gene expression programs of human embryonic stem (ES) cells and induced pluripotent stem (iPS) cells should provide a robust means to assess whether the genomes of these cells have similar pluripotent states. Recent studies have suggested that ES and iPS cells represent different pluripotent states with substantially different gene expression profiles. We describe here a comparison of global chromatin structure and gene expression data for a panel of human ES and iPS cells. Genome-wide maps of nucleosomes with histone H3K4me3 and H3K27me3 modifications indicate that there is little difference between ES and iPS cells with respect to these marks. Gene expression profiles confirm that the transcriptional programs of ES and iPS cells show very few consistent differences. Although some variation in chromatin structure and gene expression was observed in these cell lines, these variations did not serve to distinguish ES from iPS cells. Examination of two histone modifications (H3K4me3 and H3K27me3) in 6 human ES cell lines, 8 human iPS cell lines, and 1 fibroblast cell line.

2010-08-09 | E-GEOD-23455 | biostudies-arrayexpress

Derivation of pre-X inactivation human embryonic stem cells under physiological oxygen concentrations

Project description:The presence of two active X chromosomes (XaXa) is a hallmark of the ground state of pluripotency specific to murine embryonic stem cells (ESCs). Human ESCs invariably exhibit signs of X chromosome inactivation (XCI) and are considered developmentally more advanced than their murine counterparts. We describe the establishment of the first XaXa hESCs derived under physiological oxygen concentrations. Using these cell lines we demonstrate that (1) differentiation of hESCs induces random XCI in a manner similar to murine ESCs, (2) chronic exposure to atmospheric oxygen is sufficient to induce irreversible XCI with minor changes of the transcriptome, (3) the Xa exhibits heavy methylation of the XIST promoter region, and (4) XCI is associated with demethylation and transcriptional activation of XIST along with H3K27-me3 deposition across the Xi. These findings indicate that the human blastocyst contains pre-X-inactivation cells and that this state is preserved in vitro through culture under physiological oxygen. Examination of 2 different histone modifications (H3K4me3 and H3K27me3) in 3 ES cell lines in 5% and 20% oxygen.

2010-05-28 | E-GEOD-21141 | biostudies-arrayexpress

Histone profile for wild type MEF and secondary MEF with Dox-inducible vectors for Klf4, Sox2 and Oct4 (KSO)

Project description:Histone profile for wild type MEF and secondary MEF with Dox-inducible vectors for Klf4, Sox2 and Oct4 (KSO). ChIP-Seq data for H3K4me3, H3K27me3 and H3K9me3

2010-12-31 | E-GEOD-21271 | biostudies-arrayexpress

SetDB1 Contributes to Repression of Genes Encoding Developmental Regulators and Maintenance of ES Cell State

Project description:Transcription factors that play key roles in regulating embryonic stem (ES) cell state have been identified, but the chromatin regulators that help maintain ES cells are less well understood. A high-throughput shRNA screen was used to identify novel chromatin regulators that influence ES cell state. Loss of histone H3K9 methyltransferases, particularly SetDB1, had the most profound effects on ES cells. ChIP-Seq and functional analysis revealed that SetDB1 and histone H3K9 methylated nucleosomes occupy and repress genes encoding developmental regulators. These SetDB1-occupied genes are a subset of the M-bM-^@M-^\bivalentM-bM-^@M-^] genes, which contain nucleosomes with H3K4me3 and H3K27me3 modifications catalyzed by trithorax and polycomb group proteins, respectively. These genes are subjected to repression by both polycomb group proteins and SetDB1, and loss of either regulator can destabilize ES cell state. ChIP-seq data for SetDB1 and H3K9me3 in mouse ES cells.

2009-11-01 | E-GEOD-18371 | biostudies-arrayexpress

Chromatin Structure and Gene Expression Programs of Human Embryonic and Induced Pluripotent Stem Cells (Affymetrix)

Project description:Knowledge of both the global chromatin structure and the gene expression programs of human embryonic stem (ES) cells and induced pluripotent stem (iPS) cells should provide a robust means to assess whether the genomes of these cells have similar pluripotent states. Recent studies have suggested that ES and iPS cells represent different pluripotent states with substantially different gene expression profiles. We describe here a comparison of global chromatin structure and gene expression data for a panel of human ES and iPS cells. Genome-wide maps of nucleosomes with histone H3K4me3 and H3K27me3 modifications indicate that there is little difference between ES and iPS cells with respect to these marks. Gene expression profiles confirm that the transcriptional programs of ES and iPS cells show very few consistent differences. Although some variation in chromatin structure and gene expression was observed in these cell lines, these variations did not serve to distinguish ES from iPS cells. Examination of gene expression in 7 human ES cell lines, 8 human iPS cell lines, and 2 fibroblast cell line2.

2010-08-09 | E-GEOD-23402 | biostudies-arrayexpress

Promoter proximal pausing and its regulation by c-Myc in embryonic stem cells: ChIP-Seq

Project description:Recruitment of the RNA Polymerase II (Pol II) transcription initiation apparatus to promoters by specific DNA binding transcription factors is well recognized as a key regulatory step in gene expression. We describe here evidence that promoter-proximal pausing is a general feature of transcription by Pol II in embryonic stem (ES) cells, and thus an additional step where regulation of gene expression may occur. We report here that c-Myc, which occupies a third of actively transcribed genes in ES cells and is a key regulator of cellular proliferation, binds P-TEFb and contributes to release of promoter-proximal paused Pol II at these genes. ChIP-seq data for Pol II and additional factors controlling pause release in mouse ES cells.

2010-04-02 | E-GEOD-20530 | biostudies-arrayexpress

Transcriptomic analysis reveals novel long non-coding RNAs critical for vertebrate development [Illumina]

Project description:Long non-coding RNAs (lncRNAs) have emerged as critical regulators of gene expression and chromatin modifications, with important functions in development and disease. Here we sought to identify and functionally characterize lncRNAs critical for vascular vertebrate development with significant conservation across species. Genome-wide transcriptomic analyses during human vascular lineage specification enabled the identification of three conserved novel lncRNAs: TERMINATOR, ALIEN and PUNISHER that are specifically expressed in pluripotent stem cells, mesoderm and endothelial cells, respectively. Gene expression profiling, alongside RNA immunoprecipitation coupled to mass spectrometry, revealed a wide range of new molecular networks and protein interactors related to post-transcriptional modifications for all three lncRNAs. Functional experiments in zebrafish and murine embryos, as well as differentiating human cells, confirmed a developmental-stage specific role for each lncRNA during vertebrate development. The identification and functional characterization of these three novel non-coding provide a comprehensive transcriptomic roadmap and shed new light on the molecular mechanisms underlying human vascular development. shRNA knock down of lncRNAs followed by DNA methylation profiling

2015-05-15 | E-GEOD-54966 | biostudies-arrayexpress

Transcriptomic analysis reveals novel long non-coding RNAs critical for vertebrate development [RNA-Seq]

Project description:Long non-coding RNAs (lncRNAs) have emerged as critical regulators of gene expression and chromatin modifications, with important functions in development and disease. Here we sought to identify and functionally characterize lncRNAs critical for vascular vertebrate development with significant conservation across species. Genome-wide transcriptomic analyses during human vascular lineage specification enabled the identification of three conserved novel lncRNAs: TERMINATOR, ALIEN and PUNISHER that are specifically expressed in pluripotent stem cells, mesoderm and endothelial cells, respectively. Gene expression profiling, alongside RNA immunoprecipitation coupled to mass spectrometry, revealed a wide range of new molecular networks and protein interactors related to post-transcriptional modifications for all three lncRNAs. Functional experiments in zebrafish and murine embryos, as well as differentiating human cells, confirmed a developmental-stage specific role for each lncRNA during vertebrate development. The identification and functional characterization of these three novel non-coding provide a comprehensive transcriptomic roadmap and shed new light on the molecular mechanisms underlying human vascular development. Time course RNA-Seq analysis H1 ESCs differentiated into endothelial cells

2015-05-15 | E-GEOD-54968 | biostudies-arrayexpress

Transcriptomic analysis reveals novel long non-coding RNAs critical for vertebrate development [Affymetrix]

2015-05-15 | E-GEOD-54964 | biostudies-arrayexpress

Ectopic CENP-A nucleosomes localize to transcription factor hotspots and subtelomeric sites in human cancer cells

Project description:Comparison of histone variant CENP-A in different cell lines vs. DHS profiles from same cell lines. Mock IPs included. Profiles of ectopic CENP-A IP after pre-clearing with CENP-B IPs, or profiles of DHS regions from mid-log culture SW480 colorectal cancer cell lines, HeLa cervical cancer cell lines, and EpiCo normal colon cell line were generated using deep sequencing after Mnase-based ChIP, in replicates, on the Illumina platform.

2015-02-03 | E-GEOD-65482 | biostudies-arrayexpress

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