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ARID1A deficiency promotes pancreatic tumorigenesis by reducing KRAS-induced senescence (RNA-Seq I)

ABSTRACT: ARID1A deficiency promotes pancreatic tumorigenesis by reducing KRAS-induced senescence (RNA-Seq I)

PROVIDER: PRJNA673202 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR12937507_1.fastq.gz	Fastqsanger.gz
	SRR12937507_2.fastq.gz	Fastqsanger.gz
	SRR12937508_1.fastq.gz	Fastqsanger.gz
	SRR12937508_2.fastq.gz	Fastqsanger.gz
	SRR12937509_1.fastq.gz	Fastqsanger.gz

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ARID1A deficiency promotes pancreatic tumorigenesis by reducing KRAS-induced senescence

Project description:ARID1A deficiency promotes pancreatic tumorigenesis by reducing KRAS-induced senescence

| PRJNA673200 | ENA

ARID1A deficiency promotes pancreatic tumorigenesis by reducing KRAS-induced senescence (ATAC-Seq)

Project description:ARID1A is one of the most frequently mutated epigenetic regulators in a wide spectrum of cancers. In this study, we identified the anti-senescence effect of ARID1A deficiency in the progression of pancreatic intraepithelial neoplasia (PanIN) by profiling the transcriptome of individual PanINs in the mouse model. Interestingly, we found that ARID1A deficiency activates the transcription of Aldehyde dehydrogenase 1 family, member A1 (ALDH1A1), which play essential roles in attenuating the senescence by significantly reducing reactive oxygen species (ROS) induced by oncogenic KRAS. Our findings further suggest that ALDH could be considered as a potential adjuvant target for prevention and treatment of pancreatic cancer.

2021-06-06 | GSE160440 | GEO

ARID1A deficiency promotes pancreatic tumorigenesis by reducing KRAS-induced senescence (RNA-Seq II)

2021-06-06 | GSE160443 | GEO

ARID1A deficiency promotes pancreatic tumorigenesis by reducing KRAS-induced senescence (RNA-Seq I)

2021-06-06 | GSE160442 | GEO

ARID1A deficiency promotes pancreatic tumorigenesis by reducing KRAS-induced senescence (ATAC-Seq)

Project description:ARID1A deficiency promotes pancreatic tumorigenesis by reducing KRAS-induced senescence (ATAC-Seq)

| PRJNA673201 | ENA

ARID1A deficiency promotes pancreatic tumorigenesis by reducing KRAS-induced senescence (RNA-Seq II)

Project description:ARID1A deficiency promotes pancreatic tumorigenesis by reducing KRAS-induced senescence (RNA-Seq II)

| PRJNA673203 | ENA

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

ARID1A deficiency promotes pancreatic tumorigenesis by reducing KRAS-induced senescence

Project description:This SuperSeries is composed of the SubSeries listed below.

2021-06-04 | GSE160444 | GEO

REQUIREMENT FOR PKC EPSILON IN KRAS-DRIVEN LUNG TUMORIGENESIS

Project description:Non-small cell lung cancer (NSCLC), the most frequent subtype of lung cancer, remains a highly lethal malignancy and one of the leading causes of cancer deaths worldwide. Mutant KRAS is the prevailing oncogenic driver of lung adenocarcinoma, the most common histological form of NSCLC. In this study, we examined the role of PKCe, an oncogenic kinase highly expressed in NSCLC and other cancers, in KRAS-driven tumorigenesis. Notably, database analysis revealed an association between PKCe expression and poor outcome in lung adenocarcinoma patients specifically having KRAS mutation. By generating a PKCe-deficient, conditionally activatable allele of oncogenic Kras (LSL-Kras G12D ;PKCe -/- mice) we were able to demonstrate the requirement of PKCe for Kras-driven lung tumorigenesis in vivo, which is consistent with the impaired transformed growth observed in PKCe-deficient KRAS-dependent NSCLC cells. Moreover, PKCe-knockout mice were found to be less susceptible to lung tumorigenesis induced by benzo[a]pyrene, a carcinogen that induces mutations in Kras. Mechanistic analysis using RNA-Seq revealed little overlapping for PKCe and KRAS in the control of genes/biological pathways relevant in NSCLC, suggesting that a permissive role of PKCe in KRAS-driven lung tumorigenesis may involve non-redundant mechanisms. Our results thus highlight the relevance and potential of targeting PKCe for lung cancer therapeutics.

2020-07-31 | GSE149205 | GEO

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