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Analysis of chromatin accessibility in Arid1a-deficient murine primary pancreatic acinar cells using ATAC-seq

ABSTRACT: Analysis of chromatin accessibility in Arid1a-deficient murine primary pancreatic acinar cells using ATAC-seq

PROVIDER: PRJNA700532 | ENA |

REPOSITORIES: ENA

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Analysis of chromatin accessibility in Arid1a-deficient murine primary pancreatic acinar cells using ATAC-seq

Project description:To gain insight into how the loss of SWI/SNF component ARID1A affects the chromatin accessibility, primary acinar cells were isolated from Arid1a-knockout and control mice and subjected to ATAC-sequencing.

2023-05-31 | GSE166332 | GEO

Transcriptome analysis of murine primary pancreatic acinar cells in the context of Arid1a deficiency

Project description:mRNA expression profiles were generated from primary pancreatic acinar cells of Arid1a-deficient and Arid1a-wildtype mice. Arid1a depletion leads to transcription activation to the majority of genes.

2023-05-31 | GSE166333 | GEO

Arid1a restrains Kras-dependent changes in acinar cell identity

Project description:Mutations in members of the SWI/SNF chromatin remodeling family are common events in human cancer, but the mechanisms whereby disruption of SWI/SNF components alters tumorigenesis remain poorly understood. To model the effect of loss of function mutations in the SWI/SNF subunit Arid1a in pancreatic ductal adenocarcinoma (PDAC) initiation, we directed shRNA triggered, inducible and reversible suppression of Arid1a to the pancreas of mice in the setting of oncogenic KrasG12D. Arid1a cooperates with Kras in the adult pancreas as postnatal silencing of Arid1a following sustained KrasG12D expression induces rapid and irreversible reprogramming of acinar cells into mucinous PDAC precursor lesions. In contrast, Arid1a silencing during embryogenesis, concurrent with KrasG12D activation, leads to retention of acinar cell fate. Together, our results demonstrate Arid1a as a critical modulator of Kras-dependent changes in acinar cell identity, and underscore an unanticipated influence of timing and genetic context on the effects of SWI/SNF complex alterations in epithelial tumorigenesis.

2018-07-03 | GSE114576 | GEO

Arid1a restrains Kras-dependent changes in acinar cell identity

2018-07-03 | GSE114567 | GEO

Genome-wide maps of H3K27ac ocupancy on chromatin in murine acinar cell line upon EGF treatment and Arid1a silencing

Project description:Chromatin Immunoprecipitation-based sequencing (ChIP-seq) of H3K27ac was conduced in murine Kras-mutant acinar cell line 266-6 in the context of Arid1a-knockdown and/or EGF treatment. We found EGFR signaling activation as well as Arid1a silencing leads to additional increase of H3K27ac level genome-widely. And the maximal H3K27ac was achieved by the combined- EGF treatment and Arid1a knockdown.

2023-05-31 | GSE166331 | GEO

Genome-wide occupancy profile of ARID1A in the presence and absence of epidermal growth factor stimulation in murine acinar cell line 266-6 (ChIP-seq)

Project description:We identified the genome binding profile of SWI/SNF complex component ARID1A in pancreatic acinar cells. By comparing the genomic occupancy profiles, we found that EGF strikingly diminished ARID1A genome-wide affinity to the chromatin.

2023-05-31 | GSE166330 | GEO

RNA-Seq of explanted murine pancreatic acinar cells

Project description:To investigate the underlying changes during acinar-to-ductal metaplasia, pancreatic acinar cells were isolated from 5 week old KrasG12D-mice. RNA was isolated immediately after isolation (t=0 days) or after 3 days embedded in collagen.

2023-03-02 | E-MTAB-9878 | biostudies-arrayexpress

Transcriptome analysis of murine primary pancreatic acinar cells in the context of Arid1a deficiency

Project description:Transcriptome analysis of murine primary pancreatic acinar cells in the context of Arid1a deficiency

| PRJNA700533 | ENA

ARID1A Loss Promotes Lung Adenocarcinoma by Remodeling Chromatin Accessibility and Activating Glycolytic Reprogramming

Project description:This study demonstrated that ARID1A loss markedly promotes lung tumorigenesis in genetic mice models. RNA sequencing reveals significant enrichment of the glycolytic pathway in ARID1A-deficient tumors, which is characterized by the upregulation of PGAM1, PKM2, and PGK1. Besides, ARID1A depletion increases chromatin accessibility and enhances the binding ability of Hif-1a to the promoter regions of Pgam1, Pkm, and Pgk1. In patients with lung cancer, ARID1A status is negatively correlated with mRNA level of PGAM1, PKM, and PGK1.

2022-10-01 | GSE164810 | GEO

Genome-wide gene expression analysis in ARID1A-proficient and ARID1A-deficient cancer cells

Project description:To investigate that ARID1A regulates transcription of genes encoding components of the GSH synthesis pathway, a genome-wide expression analysis of a panel of ARID1A-proficient and ARID1A-deficient cancer cells was performed.

2019-01-28 | GSE122926 | GEO

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