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Gene amplification driven-long noncoding RNA SNHG17 regulates cell proliferation and migration in human non-small cell lung cancer

ABSTRACT: Gene amplification driven-long noncoding RNA SNHG17 regulates cell proliferation and migration in human non-small cell lung cancer

PROVIDER: PRJNA543994 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR9099100.fastq.gz	Fastqsanger.gz
	SRR9099101.fastq.gz	Fastqsanger.gz
	SRR9099102.fastq.gz	Fastqsanger.gz
	SRR9099103.fastq.gz	Fastqsanger.gz
	SRR9099104.fastq.gz	Fastqsanger.gz

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Gene amplification driven-long noncoding RNA SNHG17 regulates cell proliferation and migration in human non-small cell lung cancer

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Project description:Obesity is a leading risk factor for type-2 diabetes. Diabetes often leads to the dysregulation of angiogenesis, although, the mechanism is not fully understood. Previously, long noncoding RNAs (lncRNAs) have been found to modulate angiogenesis. In this study, we asked how the expression levels of lncRNAs change in endothelial cells in response to excessive palmitic acid treatment, an obesity-like condition. Bioinformatics analysis revealed that 305 protein-coding transcripts were upregulated and 70 were downregulated, while 64 lncRNAs were upregulated and 46 were downregulated. Gene ontology and pathway analysis identified endoplasmic reticulum stress, HIF-1 signaling, and Toll-like receptor signaling as enriched after palmitic acid treatment. In addition, we newly report enrichment of AGE-RAGE signaling pathway in diabetic complications, IL-17 signaling, and cysteine and methionine metabolism by palmitic acid. One lncRNA, Colorectal Neoplasia Differentially Expressed (CRNDE), was selected for further investigation. Palmitic acid induces CRNDE expression by 1.9-fold. We observed that CRNDE knockdown decreases endothelial cell proliferation, migration, and capillary tube formation. These decreases are synergistic under palmitic acid stress. These data demonstrated that CRNDE is a regulator of endothelial cell proliferation, migration, and tube formation in response to palmitic acid, and a potential target for therapies treating the complications of obesity-induced diabetes.

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LncRNA SNHG17 contributes to proliferation, migration and poor prognosis of hepatocellular carcinoma

Project description:Long noncoding RNAs (lncRNAs) have been substantially reported to have critical roles in regulating tumorigenesis recent years. However, the expression pattern and biological function of SNHG17 in hepatocellular carcinoma (HCC) remain unclearly. Bioinformatics analysis and qRT-PCR were performed to detect the expression pattern of SNHG17 in HCC tissues, adjacent non-tumorous tissues and cell lines. The effect of SNHG17 on proliferation, migration and apoptosis of HCC were investigated by knockdown and overexpressing SNHG17 in HCC cell lines. RNA sequencing was utilized to explore the underlying mechanism. Utilizing publicly available TCGA-LIHC, GSE102079 HCC datasets and qRT-PCR, we found SNHG17 was significantly upregulated in HCC tissues and cell lines and was notably associated with larger tumor size, poorly differentiation, presence of vascular invasion and advanced TNM stage. Furthermore, gain- and loss-of-function studies demonstrated that SNHG17 promoted cell proliferation, migration and inhibited apoptosis of HCC. By employing RNA sequencing, we found knockdown of SNHG17 caused 1037 differentially expressed genes, highly enriched in several pathways, including metabolic, PI3K-Akt, cell adhesion, regulation of cell proliferation and apoptotic pathway, among them 92 were overlapped with SNHG17-related genes in TCGA-LIHC dataset. Furthermore, ERH, TBCA, TDO2 and PDK4 were successfully validated and found significantly dysregulated in HCC tissues. Moreover, HCC patients with higher SNHG17 expression had a relatively poor overall survival and disease-free survival and ERH, PDK4 also played markedly role in prognosis of HCC. Broadly, our findings illustrate that SNHG17 acts as a noncoding oncogene in HCC progression, suggesting its potential value as a novel target for HCC therapy.

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