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Effects of siRNA-mediated knockdownof RUNX1 expression in breast cancer cells

ABSTRACT: Effects of siRNA-mediated knockdownof RUNX1 expression in breast cancer cells

PROVIDER: PRJNA475128 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR7276770.fastq.gz	Fastqsanger.gz
	SRR7276771.fastq.gz	Fastqsanger.gz
	SRR7276762.fastq.gz	Fastqsanger.gz
	SRR7276772.fastq.gz	Fastqsanger.gz
	SRR7276763.fastq.gz	Fastqsanger.gz

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Effects of siRNA-mediated knockdownof RUNX1 expression in breast cancer cells

Project description:Previous studies have identified an interaction between RUNX1 and estrogen receptor alpha and its potential role in estrogen signaling in breast cancer. To determine the transcriptomic actions of RUNX1, we knocked down its expression by using siRNAs, both in the absence and presence of estradiol (E2).

2022-06-01 | GSE115475 | GEO

siRNA-mediated knockdown

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RUNX1 contributes to higher-order chromatin organization and gene regulation in breast cancer cells.

Project description:RUNX1 is a transcription factor functioning both as an oncogene and a tumor suppressor in breast cancer. RUNX1 alters chromatin structure in cooperation with chromatin modifier and remodeling enzymes. In this study, we examined the relationship between RUNX1-mediated transcription and genome organization. We characterized genome-wide RUNX1 localization and performed RNA-seq and Hi-C in RUNX1-depleted and control MCF-7 breast cancer cells. RNA-seq analysis showed that RUNX1 depletion led to up-regulation of genes associated with chromatin structure and down-regulation of genes related to extracellular matrix biology, as well as NEAT1 and MALAT1 lncRNAs. Our ChIP-Seq analysis supports a prominent role for RUNX1 in transcriptional activation. About 30% of all RUNX1 binding sites were intergenic, indicating diverse roles in promoter and enhancer regulation and suggesting additional functions for RUNX1. Hi-C analysis of RUNX1-depleted cells demonstrated that overall three-dimensional genome organization is largely intact, but indicated enhanced association of RUNX1 near Topologically Associating Domain (TAD) boundaries and alterations in long-range interactions. These results suggest an architectural role for RUNX1 in fine-tuning local interactions rather than in global organization. Our results provide novel insight into RUNX1-mediated perturbations of higher-order genome organization that are functionally linked with RUNX1-dependent compromised gene expression in breast cancer cells. Hi-C and RNA-seq experiments were conducted in MCF-7 shNS and shRUNX1 cells. RUNX1 ChIP-seq was conducted in wildtype MCF-7 cells.

2016-08-23 | E-GEOD-75070 | biostudies-arrayexpress

RUNX1 contributes to higher-order chromatin organization and gene regulation in breast cancer cells.

2016-08-23 | GSE75070 | GEO

siRNA-mediated silencing of ORAI3 in MDA-MB-468 breast cancer cells exposed to hypoxia

Project description:Analysis of the effect of siRNA-mediated silencing of ORAI3 in MDA-MB-468 basal-like breast cancer cells exposed to 48 and 72 h hypoxia

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Effects of siRNA targeting PRKCD in breast cancer cells

Project description:The aim was to identify genes that were commonly influenced by a siRNA targeting PRKCD in breast cancer cell lines. MDA-MB-468 and BT-549 breast cancer cell lines were treated with control siRNA or siRNA targeting PRKCD. Three samples in each group were analyzed.

2015-03-01 | E-GEOD-55503 | biostudies-arrayexpress

Effects of siRNA targeting PRKCD in breast cancer cells

Project description:The aim was to identify genes that were commonly influenced by a siRNA targeting PRKCD in breast cancer cell lines.

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HDAC3 preferentially binds to RUNX1 in t(8;21) AML cells and collaborates with RUNX1 to repress AML1-ETO-mediated transcriptional activation

Project description:Human histone deacetylase 3 (HDAC3) plays an important role in gene transcription in diseased human cells, such as leukemia. The t(8;21) chromosomal translocation is one of the most commonly observed genetic abnormalities associated with acute myeloid leukemia. This translocation generates the AML1-ETO fusion protein between the wild-type RUNX1 transcription factor and wild-type ETO transcriptional corepressor. To better understand the role of HDAC3 in t(8;21) leukemogenesis, the human HDAC3-containing complexes were isolated from stably-transfected HeLa cells by using anti-FLAG immunoprecipitation. The resulting complexes were resolved in SDS-PAGE. The components of the complexes were identified using LC-MS/MS. We report here that the human RUNX1 transcription is a component of the HDAC3 complexes. We demonstrate that HDAC3 and RUNX1 collaboratively repress AML1-ETO-mediated transcription. These results reveal new insight into how AML1-ETO, RUNX1, and HDAC3 crosstalk to deregulate gene transcription in t(8;21) leukemia cells.

2020-02-17 | PXD017230 | Pride

Effects of RUNX1 knockdown in AR signaling

Project description:Prostate cancer is the most common cancer in men and AR downstream signalings promote prostate cancer cell proliferation. We identified RUNX1 is an androgen-regulated gene. In order to investigate the RUNX1 function in prostate cancer cells, we performed gene expression in AR-positive prostate cancer cell lines after siRUNX1 treatment. We also treated cells with vehicle or androgen to analyzed the effects of RUNX1 on AR function. Observation of androgen dependent gene expression changes after treatmet with siRNAs targeting RUNX1 with microarray.

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Human Breast Cancer Cell Lines: Control vs. Fn14 or Luciferase siRNA Treated

Project description:We performed gene expression profiling on the MDA-MB-231 and MDA-MB-436 human breast cancer cell lines following siRNA-mediated inhibition of Fn14 expression as an approach to identify the mechanistic basis for Fn14 regulation of invasive capacity. Keywords: siRNA-mediated inhibition

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