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Impact of ETV7 activity on interferon-stimulated gene expression in 293T cells treated with interferon alpha

ABSTRACT: Impact of ETV7 activity on interferon-stimulated gene expression in 293T cells treated with interferon alpha

PROVIDER: PRJNA590633 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR10502328.fastq.gz	Fastqsanger.gz
	SRR10502329.fastq.gz	Fastqsanger.gz
	SRR10502330.fastq.gz	Fastqsanger.gz
	SRR10502331.fastq.gz	Fastqsanger.gz
	SRR10502332.fastq.gz	Fastqsanger.gz

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Impact of ETV7 activity on interferon-stimulated gene expression in 293T cells treated with interferon alpha

Project description:293T cells constitutively expressing ETV7 have reduced expression of interferon-stimulated genes.

2019-11-21 | GSE140709 | GEO

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Interferon-stimulated gene expression in STAT1 knockout cells

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Interferon-stimulated gene expression in STAT1 knockout cells

Project description:STAT1 plays a cental role in the induction of interferon-stimulated genes, but interferon alpha can activate a STAT1-independent pathway that leads to gene expression. We performed microarray analysis to examine whether like interferon alpha, interferon lambda, a newly discovered interferon, can induce the expression of interferon-stimulated genes in the absence of STAT1. Control and STAT1 knockout Huh-7.5 hepatoma cells were left untreated or treated with 1000 U/ml of human interferon alpha 2a or interferon lambda 1 (PBL) for 24 h, and total RNA was extracted. Sense-strand DNA was generated from 200 ng of total RNA, fragmented, and labeled using a GeneChip WT Plus Reagent Kit (Affymetrix). Six samples were obtained and each sample was anlyzed using one GeneChip.

2016-07-22 | E-GEOD-84693 | biostudies-arrayexpress

Deciphering the gene expression network regulated by ETV7

Project description:Cancer stem cells (CSCs) represent a population of cells within the tumor able to drive tumorigenesis and known to be highly resistant to conventional chemotherapy and radiotherapy. In this work, we show a new role for ETV7, a transcriptional repressor member of the ETS family, in promoting breast cancer stem-like cells plasticity and resistance to chemo- and radiotherapy in breast cancer (BC) cells. We observed that MCF7 and T47D BC-derived cells stably over-expressing ETV7 showed reduced sensitivity to the chemotherapeutic drug 5-Flouororuacil and to radiotherapy, accompanied by an adaptive proliferative behavior observed in different culture conditions. We further noticed that alteration of ETV7 expression could significantly affect the population of breast CSCs, measured by CD44+/CD24low cell population and mammosphere formation efficiency. By transcriptome profiling, we identified a signature of Interferon-responsive genes significantly repressed in cells over-expressing ETV7, which could be responsible for the increase in the breast CSCs population, as this could be partially reverted by the treatment with IFN-b. Lastly, we show that the expression of the IFN-responsive genes repressed by ETV7 could have prognostic value in breast cancer, as low expression of these genes was associated with a worse prognosis. Therefore, we propose a novel role for ETV7 in breast cancer stem cells’ plasticity and associated resistance to conventional chemotherapy and radiotherapy, which involves the repression of a group of IFN-responsive genes, potentially reversible upon IFN-b treatment. We, therefore, suggest that an in-depth investigation of this mechanism could lead to novel breast CSCs targeted therapies and to the improvement of combinatorial regimens, possibly involving the therapeutic use of IFN-b, with the aim of avoiding resistance development and relapse in breast cancer.

2021-07-28 | GSE152580 | GEO

Expression data of interferon-alpha treated Huh-7 cells

Project description:Hepatitis C virus (HCV) infection is primarily treated with a pegylated interferon alpha based therapy, a regime that induces antiviral effects through the upregulation of many interferon-stimulated genes (ISGs). Whilst a number of anti-HCV ISGs have previously been identified, others may also be involved. Micorarrays were used to validate the presence of ISGs within subtracted libraries generated using the related techniques of suppression subtractive hybridisation and mirror orientation selection, which had initally been impllemented to isolate clones of ISGs following the interferon-alpha treatment of Huh-7 cells. Microarray data was generated for both untreated and interferon-alpha treated Huh-7 cells. No replicates were performed, however the microarray data was verified via the use of non-parametric (spearman) correlation analysis with RT-PCR data that had been generated using the same Huh-7 cell total RNA samples as the microarray experiments earlier.

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Type I and II Interferon-Stimulated Genes in Murine Primary Bone Marrow Macrophages

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Type I and II Interferon-Stimulated Genes in Murine Primary Bone Marrow Macrophages

Project description:We used microarrays to compare interferon-alpha (IFNa)- and interferon-gamma (IFNg)-stimulated genes under an equivalent biological input. The goal was to compare IFNa- and IFNg-stimulated genes, as well as to identify common and distinct sets of type I and II ISGs. Bone marrow macrophages derived from mouse bone marrow in M-CSF for 7 days. The cells were stimulated with 62U/mL IFNa and 1U/mL of IFNg for 2.5 hrs in culture. These concentrations induced equivalent STAT1 phosphorylation in BMMs.

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Expression data of interferon-alpha treated Huh-7 cells

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CRISPR screen for interferon-alpha inducible inhibitors of yellow fever virus replication

Project description:Host cells produce interferon (IFN) in response to viral infections. Secreted interferon results in the transcription and production of hundreds of interferon-stimulated genes (ISGs). A genome-wide CRISPR screen using IFN alpha-treated Huh7.5 cells was performed to determine which ISGs were required in order for host cells to suppress yellow fever virus (YFV) infection.

2018-10-25 | GSE121710 | GEO

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