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Unknown,Transcriptomics,Genomics,Proteomics

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Histone Deacetylase 3 is an Epigenomic Brake in Macropahge Alternative Activation

ABSTRACT: This SuperSeries is composed of the following subset Series: GSE33596: Histone Deacetylase 3 is an Epigenomic Brake in Macrophage Alternative Activation (ChIP-Seq) GSE33608: Histone Deacetylase 3 is an Epigenomic Brake in Macrophage Alternative Activation (microarray) Refer to individual Series

ORGANISM(S): Mus musculus

SUBMITTER: Logan Everett

PROVIDER: E-GEOD-33609 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Histone Deacetylase 3 is an Epigenomic Brake in Macrophage Alternative Activation (ChIP-Seq)

Project description:We report the genomic regions enriched in Histone Deacetylase 3 (HDAC3) in mouse bone marrow derived macrophages. Furthermore, we also report the genomic acetylation pattern on Histone 3, Lysine 9 (H3K9) in macrophages with and without HDAC3 and/or treated with Th2 cytokine IL-4. HDAC3 enriched genomic regions in mouse bone marrow dervied macrophages and H3K9Ac enriched genomic regions in wild-type macrophages and macrophages treated with IL-4 and/or deficient in HDAC3.

2011-11-10 | E-GEOD-33596 | biostudies-arrayexpress

Histone Deacetylase 3 is an Epigenomic Brake in Macrophage Alternative Activation (microarray)

Project description:Macrophages, a key cellular component of inflammation, become functionally polarized in a signal- and context-specific manner. Th2 cytokines such as IL-4 polarize macrophages to a state of alternative activation that limits inflammation and promotes wound healing. Alternative activation is mediated by a transcriptional program that is influenced by epigenomic modifications including histone acetylation. To determine if Histone Deacetylase 3 (HDAC3) has a role in macrophage polarization including alternative activation, we have performed global gene expression analysis in macrophages with and without HDAC3 and with or without IL-4 exposure. From this data, we conclude that macrophages lacking histone deacetylase 3 (HDAC3) display a polarization phenotype similar to IL-4 induced alternative activation and furthermore are hyper-responsive to IL-4 stimulation. Mouse bone marrow derived macrophages were obtained from both control and HDAC3 KO animals and treated with vehicle control (BSA) or IL-4 for 24 hours. RNA was isolated and subjected to analysis using an Agilent Whole Genome Microarray Kit.

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Project description:Macrophages play a pivotal role in the immune system through recognition and elimination of microbial pathogens. Toll-like receptors (TLRs) on macrophages interact with microbial substances and initiate signal transduction through intracellular adapters. TLR4, which is important for the response to lipopolysaccharide (LPS), triggers downstream signaling mediators and eventually activates IkB kinase (IKK) complex and mitogen-activated protein kinases (MAPKs) such as p38. Previous reports revealed that, in addition to NF-kB, the induction of some LPS-inducible genes in macrophages required another transcription factor whose activity depends on p38. However, these transcription factors remained to be identified. Among these genes, NF-kB and C/EBPβ, a p38 downstream transcription factor, were predicted to co-regulate genes in LPS-stimulated BMDMs. Based on the subsequent results of a chromatin immunoprecipitation assay, we demonstrated that Tnfaip3 is regulated by both NF-kB and p38-dependent C/EBPβ. These results elucidate our understanding of the tight regulation of innate immunity. In order to identify p38-activated transcription factors that cooperate with NF-kB in response to LPS stimulation, microarrays were used to identify genes regulated by both NF-kB and p38 using wild-type, IKK-depleted, and p38 inhibitor-treated mouse bone marrow-derived macrophages (BMDMs). In silico analysis of transcription factor binding sites was used to predict the potential synergistic transcription factors from the co-expressed genes.

2015-04-28 | E-GEOD-46361 | biostudies-arrayexpress

Diurnal changes of HDAC3, Rev-erbα, NCoR and Pol II recruitment to the mouse liver genome and of H3K9Ac

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2011-03-11 | E-GEOD-26345 | biostudies-arrayexpress

Histone Deacetylase 3 is an Epigenomic Brake in Macropahge Alternative Activation

Project description:Histone Deacetylase 3 is an Epigenomic Brake in Macropahge Alternative Activation

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ChIP-seq to investigate H3K9ac regulation by HDAC3 in trigeminal ganglion of SD rat trigeminal neuralgia model

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