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HuR knockdown in humanized and wildtype mice liver samples

ABSTRACT: HuR knockdown in humanized and wildtype mice liver samples

PROVIDER: PRJNA678342 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR13057767_1.fastq.gz	Fastqsanger.gz
	SRR13057767_2.fastq.gz	Fastqsanger.gz
	SRR13057768_1.fastq.gz	Fastqsanger.gz
	SRR13057768_2.fastq.gz	Fastqsanger.gz
	SRR13057769_1.fastq.gz	Fastqsanger.gz

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HuR knockdown in humanized and wildtype mice liver samples

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Project description:Integrative regulatory mapping indicates that the RNA-binding protein HuR (ELAVL1) couples pre-mRNA processing and mRNA stability In this dataset, we employed two distinct experiments. 1) HuR RIP-chip to identify mRNA targets of HuR. 2) HuR knockdown to identify mRNAs whose expression are dependent on HuR. All 12 samples were normalized with PLIER using Affymetrix power tools. To identify RNA targets of HuR, HuR RIP samples were compared to Mock RIP samples. To identify RNA regulated by HuR, HuR knockdown samples were compared to mock knockdown samples.

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Project description:HuR is known to regulate mRNA stability and translatability in cytoplasm. In several human tumors, the level of HuR expression has been shown to correlate with poor disease outcome. In meningioma, however, the prognostic value and the potential pro-oncogenic properties of HuR remain obscure. To clarify these, transcriptome-wide analyses in IOMM-Lee cells were performed to pinpoint the detailed molecular consequences of HuR knockdown. In IOMM-Lee cells, transcriptomic analyses revealed that HuR knockdown deregulated the signaling pathway of HIF1A and upregulated the expression of genes for cytoplasmic mRNA processing body assembly, poly(A)-specific ribonuclease activity, positive regulation of apoptosis, negative regulation of RNA splicing, global genome nucleotide-excision repair, and positive regulation of cell cycle arrest. Interestingly, HuR knockdown under hypoxic culture condition potentiated further the effects of HuR knockdown on cell growth, apoptosis, and HIF1A expression.

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Project description:Sequencing of liver RNA from HuR WT and HuR KO mice

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Project description:Human antigen R (HuR) protein, a RNA binding protein (RBP), has been reported to regulate essential steps in RNA metabolism and immune response in a variety of cell types, but its function in metabolism remains unclear. This study identifies HuR as a major repressor during adipogenesis. Knockdown and overexpression of HuR in primary adipocyte culture enhances and inhibits adipogenesis in vitro, respectively. Fat-specific knockout of HuR significantly enhances adipogenic gene program in all three major adipose tissues including epidydimal, inguinal white and brown adipose tissue, accompanied with systemic glucose intolerance and insulin resistance. Conversely, transgenic overexpression of HuR in adipose tissue prevents the HFD induced obesity by repressing adipogenesis. Mechanistically, HuR may inhibit adipogenesis by recognizing and modulating the stability of hundreds of adipocyte transcripts, including the mRNA of Insig1, a negative regulator during adipogenesis. Taken together, our work establishes HuR as a novel posttranscriptional regulator of adipogenesis and provides a new insight into how RNA processing contributes to adipocyte development.

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