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Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

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Transcription profiling of mouse ES cells, neural precursor cells and embryonic fibroblasts

ABSTRACT: Expression profiles for isogenic (129SvJae x C57BL/6) murine embryonic stem (ES) cells, neural precursors (NPC) obtained through in vitro differentiation of the ES cells, and embryonic fibroblasts (MEF) obtained at day 13.5. Experiment Overall Design: 3 replicates of wt ES cells, 3 replicates of wt NPCs obtained by in vitro differentiation, 2 replicated of primary MEFs

ORGANISM(S): Mus musculus

SUBMITTER: Tarjei Mikkelsen

PROVIDER: E-GEOD-8024 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Publications

Genome-wide maps of chromatin state in pluripotent and lineage-committed cells.

Mikkelsen Tarjei S TS Ku Manching M Jaffe David B DB Issac Biju B Lieberman Erez E Giannoukos Georgia G Alvarez Pablo P Brockman William W Kim Tae-Kyung TK Koche Richard P RP Lee William W Mendenhall Eric E O'Donovan Aisling A Presser Aviva A Russ Carsten C Xie Xiaohui X Meissner Alexander A Wernig Marius M Jaenisch Rudolf R Nusbaum Chad C Lander Eric S ES Bernstein Bradley E BE

Nature 20070701 7153

We report the application of single-molecule-based sequencing technology for high-throughput profiling of histone modifications in mammalian cells. By obtaining over four billion bases of sequence from chromatin immunoprecipitated DNA, we generated genome-wide chromatin-state maps of mouse embryonic stem cells, neural progenitor cells and embryonic fibroblasts. We find that lysine 4 and lysine 27 trimethylation effectively discriminates genes that are expressed, poised for expression, or stably ...[more]

PMID: 17603471

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Transcription profiling of mouse embryonic stem cell-derived astrocytes

Project description:Expression profiles for Gfap-positive astrocytes obtained by in vitro differentiation of 129SvJae x C57BL/6 murine embryonic stem (ES) cells. Generated to examine the relationship between expression levels and DNA methylation patterns. Experiment Overall Design: 3 replicates of ES-derived astrocytes.

2008-10-20 | E-GEOD-11483 | biostudies-arrayexpress

Architectural protein subclasses shape 3-D organization of genomes during lineage commitment

Project description:Understanding the topological configurations of chromatin can reveal valuable insights into how the genome and epigenome act in concert to control cell fate during development. Here we generate high-resolution architecture maps across seven genomic loci in embryonic stem cells and neural progenitor cells. We observe a hierarchy of 3-D interactions that undergo marked reorganization at the sub-Mb scale during differentiation. Distinct combinations of CTCF, Mediator, and cohesin show widespread enrichment in architecture at different length scales. CTCF/cohesin anchor long-range constitutive interactions that might form the topological basis for invariant sub-domains. Conversely, Mediator/cohesin together with pioneer factors bridge short-range enhancer-promoter interactions within and between larger sub-domains. Knockdown of Smc1 or Med12 in ES cells results in disruption of spatial architecture and down-regulation of genes found in cohesin-mediated interactions. We conclude that cell type-specific chromatin organization occurs at the sub-Mb scale and that architectural proteins shape the genome in hierarchical length scales. Analysis of higher-order chromatin chromatin architecture in mouse ES cells and ES-derived NPCs. Analysis of CTCF and Smc1 occupied sites in ES-derived NPCs.

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Murine ES cells, neural precursor cells and embryonic fibroblasts

Project description:Expression profiles for isogenic (129SvJae x C57BL/6) murine embryonic stem (ES) cells, neural precursors (NPC) obtained through in vitro differentiation of the ES cells, and embryonic fibroblasts (MEF) obtained at day 13.5. Keywords: cell type comparison

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Murine embryonic stem cell-derived astrocytes

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Project description:To unravel the molecular mechanism by which HOXB4 promotes the expansion of early hematopoietic progenitors within differentiating ES cells, we analzed the gene expression profiles of embryoid bodies (EBs) in which transcription of HOXB4 had been induced or not induced. A substantial number of the identified HOXB4 target genes are involved in signaling pathways important for controlling self-renewal, maintenance and differentiation of stem cells. Furthermore, we demonstrate that HOXB4 activity and FGF-signaling are intertwined. HOXB4-mediated expansion of ES cell-derived early progenitors was enhanced by specific and complete inhibition of FGF-receptors. In contrast, the expanding activity of HOXB4 on hematopoietic progenitors in day4-6 embryoid bodies was blunted in the presence of basic FGF (FGF2) indicating a dominant negative effect of FGF-signaling on the earliest hematopoietic cells. Taken together, we show that modulation of FGF signaling is an essential feature of HOXB4 activity in the context of embryonic hematopoiesis. Experiment Overall Design: The Hoxb4i ES cell line (Kyba et al. 2002, Cell 109:29-37) contains an integrated âtet-onâ cassette that allows induction of HOXB4 expression upon treatment with doxycycline. These ES cells can be used to produce hematopoietic cells through the formation of embryoid bodies (EBs). Hematopoiesis starts in these EBs at day 4 and the differentiation into hematopoietic fates can be quantified by colony assays on methyl-cellulose using cells dissociated from EBs at day 6 of incubation. The induction of HOXB4 by incubation with doxycycline increases the production of hematopoietic progenitors within EBs by day 6. Using this specific ES cell line, we compared the transcriptome between embryoid bodies (EBs) in which transcription of HOXB4 had been induced or not induced from day 4 to day 6 (48hours). Experiment Overall Design: Biological replicates: 3

2008-06-16 | E-GEOD-9044 | biostudies-arrayexpress

Connecting microRNA genes to the core transcriptional regulatory circuitry of embryonic stem cells

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CHD7 targets active gene enhancer elements to modulate ES cell-specific gene expression.

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2015-10-16 | E-MTAB-1953 | biostudies-arrayexpress

KDM5B focuses H3K4 methylation near promoters and enhancers during embryonic stem cell self-renewal and differentiation [ChIP-Seq]

Project description:Pluripotency of embryonic stem (ES) cells is controlled in part by chromatin-modifying factors that regulate histone H3 lysine 4 (H3K4) methylation. However, it remains unclear how H3K4 demethylation contributes to ES cell function. Here, we show that KDM5B, which demethylates lysine 4 of histone H3, co-localizes with H3K4me3 near promoters and enhancers of active genes in ES cells; its depletion leads to spreading of H3K4 methylation into gene bodies and enhancer shores, indicating that KDM5B functions to focus H3K4 methylation at promoters and enhancers. Spreading of H3K4 methylation to gene bodies and enhancer shores is linked to defects in gene expression programs and enhancer activity, respectively, during self-renewal and differentiation of KDM5B-depleted ES cells. KDM5B critically regulates H3K4 methylation at bivalent genes during differentiation in the absence of LIF or Oct4. We also show that KDM5B and LSD1, another H3K4 demethylase, co-regulate H3K4 methylation at active promoters but they retain distinct roles in demethylating gene body regions and bivalent genes. Our results provide global and functional insight into the role of KDM5B in regulating H3K4 methylation marks near promoters, gene bodies, and enhancers in ES cells and during differentiation. ChIP-Seq for KDM5B, H3K4 methylation and H3K27ac in murine shLuc, shKdm5b, shLuc-LSD1i, shKdm5b-LSD1i ES cells, and during differentiation of shLuc and shKdm5b ES cells for 2 days, 3 days, and 4 days without LIF.

2014-01-27 | E-GEOD-53087 | biostudies-arrayexpress

KDM5B focuses H3K4 methylation near promoters and enhancers during embryonic stem cell self-renewal and differentiation [RNA-Seq]

Project description:Pluripotency of embryonic stem (ES) cells is controlled in part by chromatin-modifying factors that regulate histone H3 lysine 4 (H3K4) methylation. However, it remains unclear how H3K4 demethylation contributes to ES cell function. Here, we show that KDM5B, which demethylates lysine 4 of histone H3, co-localizes with H3K4me3 near promoters and enhancers of active genes in ES cells; its depletion leads to spreading of H3K4 methylation into gene bodies and enhancer shores, indicating that KDM5B functions to focus H3K4 methylation at promoters and enhancers. Spreading of H3K4 methylation to gene bodies and enhancer shores is linked to defects in gene expression programs and enhancer activity, respectively, during self-renewal and differentiation of KDM5B-depleted ES cells. KDM5B critically regulates H3K4 methylation at bivalent genes during differentiation in the absence of LIF or Oct4. We also show that KDM5B and LSD1, another H3K4 demethylase, co-regulate H3K4 methylation at active promoters but they retain distinct roles in demethylating gene body regions and bivalent genes. Our results provide global and functional insight into the role of KDM5B in regulating H3K4 methylation marks near promoters, gene bodies, and enhancers in ES cells and during differentiation. RNA-Seq of murine shLuc and shKdm5b ES cells differentiated for 72h in the absence of LIF.

2014-01-27 | E-GEOD-53090 | biostudies-arrayexpress

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