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Key role of dysregulated SF3A3 translation in MYC-induced breast tumorigenesis

ABSTRACT: Key role of dysregulated SF3A3 translation in MYC-induced breast tumorigenesis

PROVIDER: PRJNA615004 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR11411712.fastq.gz	Fastqsanger.gz
	SRR11411713.fastq.gz	Fastqsanger.gz
	SRR11411714.fastq.gz	Fastqsanger.gz
	SRR11411715.fastq.gz	Fastqsanger.gz
	SRR11411716.fastq.gz	Fastqsanger.gz

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Project description:The MYC oncogene has been implicated in the regulation of up to thousands of genes involved in many cellular programs including proliferation, growth, differentiation, self-renewal, and apoptosis. MYC is thought to induce cancer through an exaggerated effect on these physiologic programs. Which of these genes are responsible for the ability of MYC to initiate and/or maintain tumorigenesis is not clear. Previously, we have shown that upon brief MYC inactivation, some tumors undergo sustained regression. Here we demonstrate that upon MYC inactivation there are global permanent changes in gene expression detected by microarray analysis. By applying StepMiner analysis, we identified genes whose expression most strongly correlated with the ability of MYC to induce a neoplastic state. Notably, genes were identified that exhibited permanent changes in mRNA expression upon MYC inactivation. Importantly, permanent changes in gene expression could be shown by chromatin immunoprecipitation (ChIP) to be associated with permanent changes in the ability of MYC to bind to the promoter regions. Our list of candidate genes associated with tumor maintenance was further refined by comparing our analysis with other published results to generate a gene signature associated with MYC-induced tumorigenesis in mice. To validate the role of gene signatures associated with MYC in human tumorigenesis, we examined the expression of human homologs in 273 published human lymphoma microarray datasets in Affymetrix U133A format. One large functional group of these genes included the ribosomal structural proteins. In addition, we identified a group of genes involved in a diverse array of cellular functions including: BZW2, H2AFY, SFRS3, NAP1L1, NOLA2, UBE2D2, CCNG1, LIFR, FABP3, and EDG1. Hence, through our analysis of gene expression in murine tumor models and human lymphomas, we have identified a novel gene signature correlated with the ability of MYC to maintain tumorigenesis. Time: time of doxycycline treatment or time after removal Keywords: time_series_design Groups of assays that are related as part of a time series. Compound Based Treatment: Bone tumor cells 1325 were treated/not treated with 20ng/ml of doxycycline Computed

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Key role of dysregulated SF3A3 translation in MYC-induced breast tumorigenesis

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