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Allele-specific gene regulation, phenotypes, and therapeutic vulnerabilities in estrogen receptor alpha mutant endometrial cancer (xenograft RNA-seq)

ABSTRACT: Allele-specific gene regulation, phenotypes, and therapeutic vulnerabilities in estrogen receptor alpha mutant endometrial cancer (xenograft RNA-seq)

PROVIDER: PRJNA967613 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR24443341_1.fastq.gz	Fastqsanger.gz
	SRR24443341_2.fastq.gz	Fastqsanger.gz
	SRR24443342_1.fastq.gz	Fastqsanger.gz
	SRR24443342_2.fastq.gz	Fastqsanger.gz
	SRR24443343_1.fastq.gz	Fastqsanger.gz

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Allele-specific gene regulation, phenotypes, and therapeutic vulnerabilities in estrogen receptor alpha mutant endometrial cancer (xenograft RNA-seq)

Project description:Activating estrogen receptor alpha (ER) mutations are present in primary endometrial and metastatic breast cancers, promoting estrogen-independent activation of the receptor. Functional characterizations in breast cancer have established unique molecular and phenotypic consequences of the receptor, yet the impact of ER mutations in endometrial cancer has not been fully explored. In this study, we used CRISPR-Cas9 to model the clinically prevalent ER-Y537S mutation and compared results to ER-D538G to discover allele-specific differences between ER mutations in endometrial cancer. We found that constitutive activity of mutant ER resulted in changes in the expression of thousands of genes, stemming from combined alterations to ER binding and chromatin accessibility. The unique gene expression programs resulted in ER mutant cells developing increased cancer associated phenotypes, including migration, invasion, anchorage independent growth, and growth in vivo. To uncover potential treatment strategies, we identified ER associated proteins via Rapid Immunoprecipitation and Mass Spectrometry of Endogenous Proteins (RIME) and interrogated two candidates, CDK9 and NCOA3. Inhibition of these regulatory protein resulted in decreased growth and migration, representing potential novel treatment strategies for ER mutant endometrial cancer. Taken together, this study provides insight into ER mutant activity in endometrial cancer and identifies potential therapies for women with ER mutant endometrial cancer.

2023-05-06 | GSE231744 | GEO

Allele-specific gene regulation, phenotypes, and therapeutic vulnerabilities in estrogen receptor alpha mutant endometrial cancer (RNA-Seq)

2022-06-17 | GSE205878 | GEO

Allele-specific gene regulation, phenotypes, and therapeutic vulnerabilities in estrogen receptor alpha mutant endometrial cancer (ChIP-Seq)

2022-06-17 | GSE205877 | GEO

Allele-specific gene regulation, phenotypes, and therapeutic vulnerabilities in estrogen receptor alpha mutant endometrial cancer (ATAC-Seq)

2022-06-17 | GSE205875 | GEO

Allele-specific gene regulation, phenotypes, and therapeutic vulnerabilities in estrogen receptor alpha mutant endometrial cancer

Project description:Allele-specific gene regulation, phenotypes, and therapeutic vulnerabilities in estrogen receptor alpha mutant endometrial cancer

| PRJNA847984 | ENA

Allele-specific gene regulation, phenotypes, and therapeutic vulnerabilities in estrogen receptor alpha mutant endometrial cancer (RNA-Seq)

Project description:Allele-specific gene regulation, phenotypes, and therapeutic vulnerabilities in estrogen receptor alpha mutant endometrial cancer (RNA-Seq)

| PRJNA847987 | ENA

Allele-specific gene regulation, phenotypes, and therapeutic vulnerabilities in estrogen receptor alpha mutant endometrial cancer (ChIP-Seq)

Project description:Allele-specific gene regulation, phenotypes, and therapeutic vulnerabilities in estrogen receptor alpha mutant endometrial cancer (ChIP-Seq)

| PRJNA847990 | ENA

Allele-specific gene regulation, phenotypes, and therapeutic vulnerabilities in estrogen receptor alpha mutant endometrial cancer (ATAC-Seq)

Project description:Allele-specific gene regulation, phenotypes, and therapeutic vulnerabilities in estrogen receptor alpha mutant endometrial cancer (ATAC-Seq)

| PRJNA847980 | ENA

Allele-specific gene regulation, phenotypes, and therapeutic vulnerabilities in estrogen receptor alpha mutant endometrial cancer

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

2022-06-17 | GSE205879 | GEO

Aberrant claudin-6–adhesion signal promotes endometrial cancer progression via estrogen receptor α

Project description:Cell adhesion proteins not only maintain tissue integrity but also possess signaling abilities to organize diverse cellular events in a variety of physiological and pathological processes; however, the underlying mechanism remains obscure. Among cell adhesion molecules, the claudin (CLDN) family often possesses aberrant expression in various cancers, but the biological relevance and molecular basis have not yet been established. Here, we show that high CLDN6 expression accelerates cellular proliferation and migration in human endometrial cancer cells in vitro. Using xenograft model, we also revealed that aberrant CLDN6 expression promotes tumor growth and invasion in endometrial cancer tissues. The second extracellular domain and Y196/200 of CLDN6 were required to recruit and activate Src-family kinases (SFKs) and to stimulate malignant phenotypes. Importantly, we demonstrate that the CLDN6/SFK/PI3K-dependent AKT and SGK (serum- and glucocorticoid-regulated kinase) signalings target Ser518 in the human estrogen receptor α and ligand-independently activate target genes in endometrial cancer cells, resulting in cancer development. CLDN6, at least in part, also regulated gene expression in an ERα-independent manner.

2021-03-20 | GSE161384 | GEO

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