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Differential Expression Profiles of tRNA-derived Small RNAs in Muscle-Invasive Bladder Cancer in Chinese Population

ABSTRACT: Differential Expression Profiles of tRNA-derived Small RNAs in Muscle-Invasive Bladder Cancer in Chinese Population

PROVIDER: PRJNA792560 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR17334925.fastq.gz	Fastqsanger.gz
	SRR17334926.fastq.gz	Fastqsanger.gz
	SRR17334927.fastq.gz	Fastqsanger.gz
	SRR17334928.fastq.gz	Fastqsanger.gz
	SRR17334929.fastq.gz	Fastqsanger.gz

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Differential Expression Profiles of tRNA-derived Small RNAs in Muscle-Invasive Bladder Cancer in Chinese Population

Project description:The goals of this study are to screen differential expression profiles of tRNA-Derived small RNAs (tsRNAs) in muscle-invasive bladder cancer (MIBC) in Chinese population using next-generation sequencing and qRT-PCR.As a result, in MIBC tissues, 406 tsRNAs were differentially expressed between in MIBC tissues. Of them, 91 tsRNAs were significantly differentially expressed (fold change>1.5; P<0.05): 65 tsRNAs were significantly up-regulated whereas 26 were significantly down-regulated in MIBC.Taken together,this study explored, for the first time, the significant alteration of tsRNA expression profiles in MIBC in Chinese population and offered deep insights into many possible treatment targets of MIBC by regulating tsRNAs.

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Comparison of gene expression profiling of human non-muscle invasive bladder cancer and muscle invasive bladder cancer

Project description:The biological behaviors, clinical treatment, prognosis of nonmuscle-invasive bladder cancers (NMIBCs) and muscle-invasive bladder cancers (MIBCs) are distinct. Therefore, we performed high-through microarray screening of mRNA expression in 30 bladder tumors, to filter out some of the differential expression genes in NMIBCs and MIBCs.A total of 11 Genes in MIBCs versus in NMIBCs were considered differentially transcribed if they were transcribed ≤2.0 fold change and p<0.001 by unpaired T-test, including 9 up-regulated genes and 2 down-regulated genes in MIBCs (NR4A2, PLK3, CYR61, APOLD1, C13ORF33, LIG4, RBMS3, PCK2, AK098422, HSD17B3, RTN4). These candidate genes were validated in further and provide further insight into the discovery of new putative markers to identify MIBCs preoperatively.

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Project description:Bladder cancer, the most common malignancy of the urinary tract, has a poor overall survival rate if the tumor becomes muscle invasive. The discovery and evaluation of new alternative medications targeting high-grade muscle invasive bladder cancer (MIBC) are of tremendous importance in reducing bladder cancer mortality. Isorhapontigenin (ISO), a stilbene derivative from Chinese herb Gnetum cleistostachyum, exhibits a strong anti-cancer effect on MIBCs. Here, we report the whole transcriptome profiling of ISO-treated human bladder cancer T24 cells. A total of 1047 differentially expressed genes (DEGs) were identified, including 596 downregulated and 451 upregulated genes. Functional annotation and pathway analysis revealed that ISO treatment induced massive changes in gene expression associated with cell movement, migration, invasion, metabolism, proliferation, and angiogenesis. Additionally, ISO treatment activated genes involved in the inflammatory response but repressed genes involved in hypoxia signaling, glycolysis, the actin cytoskeleton, and the tumor microenvironment. In summary, our whole transcriptome analysis demonstrated a shifted metabolism and altered actin cytoskeleton in ISO treated T24 cells, which subsequently contribute to tumor microenvironment remodeling that suppresses tumor growth and progression.

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Project description:Muscle-invasive bladder cancer (MIBC) leads to a large societal burden. Recently, tRNA-derived small RNAs (tsRNAs), a novel type of noncoding RNA (ncRNAs), have been identified. However, the expression patterns and functions of tsRNAs in MIBC have not yet been identified. Here, RNA sequencing, bioinformatics, and quantitative reverse transcription- polymerase chain reaction (qRT-PCR) were used to screen the expression profiles and predict the potential roles of tsRNAs in MIBC. Of 406 tsRNAs differentially expressed in MIBC tissues, 91 tsRNAs were significantly differentially expressed. Then, four candidate tsRNAs, tiRNA-1:34-Val-CAC-2, tiRNA-1:33-Gly-GCC-1, tRF-1:32-Gly-GCC-1, and tRF-+1:T20-Ser-TGA-1, were selected. Next, a bioinformatics analysis showed the potential target genes and tsRNA-mRNA network. The most significant and meaningful terms of gene ontology were the positive regulation of the phosphate metabolic process, lamellipodium, and protein-cysteine S-acyltransferase activity in the biological process, cellular component, and molecular function, respectively. In addition, the top four pathways were predicted by the Kyoto Encyclopedia of Genes and Genomes database (KEGG). Finally, qRT-PCR demonstrated a similar expression pattern compared to sequencing data for the candidate tsRNAs. In short, we find differential expression profiles and predict that tiRNA-1:33-Gly-GCC-1, tRF-1:32-Gly-GCC-1, and tRF-+1:T20-Ser-TGA-1 are very likely to engage in the pathophysiological process of MIBC via regulating the target genes in the key pathways.

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