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

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

PROVIDER: PRJNA700533 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR13649883.fastq.gz	Fastqsanger.gz
	SRR13649884.fastq.gz	Fastqsanger.gz
	SRR13649885.fastq.gz	Fastqsanger.gz
	SRR13649886.fastq.gz	Fastqsanger.gz
	SRR13649887.fastq.gz	Fastqsanger.gz

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

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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.

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