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Profiling of Polyadenylated RNAs after Brg1/Smarca4 knock-down in murine bone marrow-derived macrophages after LPS or LPS plus Dex stimulation [RNA-seq]

ABSTRACT: We performed Brg1 (Smarac4) knock-down by siRNA in murine primary bone marrow-derived macrophages and profiled the effect on gene expression by RNAseq after lipopolysaccharide (LPS) or LPS plus dexamethasone (Dex) treatment. Brg1 knock-down cells are compared to cells treated with a control siRNA. We analysed the requirement of Brg1/Smarca4 for the expression of inflammatory and glucocorticoid receptor target genes.

ORGANISM(S): Mus musculus

PROVIDER: GSE186513 | GEO | 2023/10/31

REPOSITORIES: GEO

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GR and BRG1 cistromes of murine primary bone marrow derived macrophages treated with LPS and Dex+LPS [ChIP-seq]

Project description:We mapped the genome wide binding profile of the chromatin remodeller BRG1 in wild type bone marrow derived macrophages (BMDMs) after 3h LPS and LPS plus Dex treatment by ChIPseq. Additionally, we profiled the GR cistrome in Dex + LPS-treated BMDMs after 3h treatment by ChIPseq.

2023-06-23 | GSE186512 | GEO

Microarray analysis of ATP-dependent chromatin remodeller BRG1/SMARCA4 mediated gene expression in primary human keratinocytes (PHEKs) after scratch wound assay.

Project description:siRNA mediated knockdown of BRG1/SMARCA4 in scratch wounded cell culture PHEKs, used to identify specific BRG1/SMARCA4 dependent gene expression programs which are initiated during immediate and early (1h and 24h) epithelial wounding. 3 human donors.

2022-12-01 | E-MTAB-12452 | biostudies-arrayexpress

BRG1-dependent regulation of Wnt signaling pathway during skeletal muscle differentiation

Project description:RNA-seq analysis for C2C12 myoblasts knocked down for either only-BRG1 or only-BRM or both BRG1 and BRM. Cells were treated with an siRNA SMARTpools of four oligos each targeting either BRG1 (siGENOME mouse Smarca4 pool #M-041135-01-0020) or BRM (siGENOME mouse Smarca2 pool #M-056591-00-0020) or both. Control samples were treated with non-targeting scrambled oligos (siRNA SMARTpool ON-TARGETplus scrambled non-targeting pool # D-001810-10-20). siRNA pools were purchased from Dharmacon, Horizon Discovery Ltd., USA.

2023-06-24 | GSE196283 | GEO

Target genes of BRG1 in mouse embryonic stem cells

Project description:BRG1-SWI/SNF complex is an important chromatin remodeling complex that involved in various biological processes. Here we described the genome-wide binding of histone acetylation upon BRG1 depletion in mouse embryonic stem cells. Mouse embryonic stem cells were treated with either scrambled siRNA or siRNA against BRG1 for 48 h, and each treatment has three replicates.

2015-04-28 | E-GEOD-57472 | biostudies-arrayexpress

Target genes of BRG1 in human embryonic stem cells

Project description:BRG1-SWI/SNF complex is an important chromatin remodeling complex that involved in various biological processes. Here we described the genome-wide binding of histone acetylation upon BRG1 depletion in human embryonic stem cells. Human embryonic stem cells were treated with either scrambled siRNA or siRNA against BRG1 for 48 h, and each treatment has three replicates.

2015-04-28 | E-GEOD-57473 | biostudies-arrayexpress

Expression data from fibroblasts with knock-down of Brg1 and Brm

Project description:We used microarrays to asses gene expression in 3T3 fibroblasts, after knock-down of Brg1 and Brm using stable shRNA interference. Cells were treated with 5ng/ml mouse TNF-alpha to stimulate inducible gene activation.

2020-02-04 | GSE142076 | GEO

Protein-protein interactions of BRG1 or BRG1-HSA in SW13 cells

Project description:The SWI/SNF complex remodels chromatin in an ATP-dependent manner through the ATPase subunits BRG1 and BRM. Chromatin remodeling alters nucleosome structure to change gene expression, however aberrant remodeling and gene expression can result in cancer. The function and localization on chromatin of the SWI/SNF complex depends on the protein makeup of the complex. Here we report the protein-protein interactions of wild-type BRG1 or mutant BRG1 in which the HSA domain has been deleted (BRG1-HSA). We demonstrate the interaction of BRG1 with most SWI/SNF complex members and a failure of a number of these members to interact with BRG1-HSA. These results demonstrate that the HSA domain of BRG1 is a critical interaction platform for the correct formation of SWI/SNF remodeling complexes.

2023-02-15 | PXD029647 | Pride

Expression data from fibroblasts with knock-down of Brg1 and Brm

Project description:Expression data from fibroblasts with knock-down of Brg1 and Brm

| PRJNA595866 | ENA

Brg1 activates enhancer repertoires to establish B cell identity and modulate cell growth

Project description:Early B cell development is orchestrated by the combined activities of the transcriptional regulators E2A, EBF1, Foxo1 and Ikaros. However, how the genome-wide binding patterns of these regulators are modulated during B-lineage development remains to be determined. Here, we found that in lymphoid progenitors the chromatin remodeler Brg1 specified the B cell fate. In committed pro-B cells Brg1 regulated Igh locus contraction and controlled c-Myc expression to modulate the expression of genes that regulate ribosome biogenesis. In committed pro-B cells Brg1 also suppressed a pre-B lineage-specific pattern of gene expression. Finally, we found that Brg1 acted mechanistically to establish B cell fate and modulate cell growth by facilitating access of lineage-specific transcription factors to poised enhancer repertoires. 8 ATAC-Seq samples from sorted ALP and BLP (duplicates, control and Brg1-deleted), 4 ATAC-Seq samples from cultured pro-B cells (duplicates, control and Brg1-deleted), 2 Ikaros ChIP-seq samples (performed in Rag1-/- pro-B cells and in E2A-/- pre-pro-B cells), 1 Brg1 ChIP-seq sample and accompanying Input sample (both in Rag1-/- pro-B cells), 4 RNA-Seq samples from cultured pro-B cells (duplicates, control and Brg1-deleted), 6 RNA-Seq samples from cultured Rag1-/- pro-B cells (triplicates, control and Brg1-knock down).

2015-05-15 | E-GEOD-66978 | biostudies-arrayexpress

BRG1/SMARCA4 is essential for neuroblastoma cell viability through modulation of cell death and survival pathways

Project description:Neuroblastoma (NB) is a neoplasm of the sympathetic nervous system, and is the most common solid tumor of infancy. NBs are very heterogeneous, with a clinical course ranging from spontaneous regression to resistance to all current forms of treatment. High-risk patients need intense chemotherapy, and only 30-40% will be cured. Relapsed or metastatic tumors acquire multi-drug resistance, raising the need for alternative treatments. Owing to the diverse mechanisms that are responsible of NB chemoresistance, we aimed to target epigenetic factors that control multiple pathways to bypass therapy resistance. We found that the SWI/SNF-related, matrix-associated, actin- dependent regulator of chromatin, subfamily a, member 4 (SMARCA4/BRG1) was consistently upregulated in advanced stages of NB, with high BRG1 levels being indicative of poor outcome. Loss-of-function experiments in vitro and in vivo showed that BRG1 is essential for the proliferation of NB cells. Furthermore, whole genome transcriptome analysis revealed that BRG1 controls the expression of key elements of oncogenic pathways such as PI3K/AKT and BCL2, which offers a promising new combination therapy for high-risk NB Non-silencing control (NSC) or shBRG1 lentiviral vectors were transduced in the Neuroblastoma cell lines SK-N-BE(2) by triplicate. 48h post-infection, total RNA was extracted

2016-03-01 | E-GEOD-74622 | biostudies-arrayexpress

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