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Next Generation Sequencing Analysis of PRMT5 inhibitor-treated MYC-driven liver tumors

ABSTRACT: Next Generation Sequencing Analysis of PRMT5 inhibitor-treated MYC-driven liver tumors

PROVIDER: PRJNA646514 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR12231700_1.fastq.gz	Fastqsanger.gz
	SRR12231700_2.fastq.gz	Fastqsanger.gz
	SRR12231701_1.fastq.gz	Fastqsanger.gz
	SRR12231701_2.fastq.gz	Fastqsanger.gz
	SRR12231702_1.fastq.gz	Fastqsanger.gz

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Next Generation Sequencing Analysis of PRMT5 inhibitor-treated MYC-driven liver tumors

Project description:Liver cancer is one of the leading causes of cancer-related deaths worldwide. Hepatocellular carcinoma (HCC) is the most common liver cancer, and limited therapeutic options are available. Here we discovered that urinary dimethylarginine, especially symmetric dimethylarginine (SDMA), was found to be increased in HCC in a MYC-dependent manner. Mechanistically, protein arginine methyltransferase 5 (Prmt5), which was highly induced in HCC, is a direct MYC target gene. Moreover, administration of GSK3326595, a PRMT5 inhibitor, to human MYC-overexpressing transgenic mice that spontaneously develop HCC, suppressed the growth of liver tumors. GSK3326595 exhibited anti-proliferative activity and enhanced anti-tumor immune response. Collectively, this study suggest that PRMT5 could be a new drug target for HCC treatment.

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Project description:To identify proteomic signatures associated with hepatocellular carcinoma driven by MYC overexpression, proteomics was performed on the LAP-tTA/tetO-MYC mouse conditional liver cancer model. Upon MYC activation, mice form liver cancer. Differential proteomics was performed in "MYC on" (MYC-HCC) mouse liver tumors versus mouse control normal liver tissue (where MYC was not overexpressed to drive tumorigenesis -- "MYC off").

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PRMT5 genomic deregulation supports growth and stress tolerance in chronic lymphocytic leukemia

Project description:Patients suffering from chronic lymphocytic leukemia (CLL) display highly diverse clinical courses ranging from indolent cases to aggressive disease with genetic and epigenetic features resembling this diversity. Here, we developed a comprehensive approach combining a variety of molecular and clinical data to identify translocation events disrupting long-range chromatin interactions and causing cancer-relevant transcriptional deregulation. Thereby, we identified a B cell specific cis-regulatory element restricting the expression of genes in the associated locus, including PRMT5 and DAD1, two factors with oncogenic potential. Examining the role of PRMT5 in CLL identified transcriptional programs associated with pathways of stress tolerance and growth support, maintaining MYC-driven gene expression in vivo and in vitro. Conversely, inhibition of PRMT5 impairs factors involved in DNA-repair and sensitizes cells for apoptosis. Finally, we show that artificial deletion of the regulatory element from its endogenous context resulted in upregulation of corresponding genes, including PRMT5. Furthermore, such disruption renders PRMT5 transcription vulnerable to additional stimuli and subsequently also alters the expression of downstream PRMT5 targets.

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