Project description:In this study, we investigated the role of microRNAs and circular RNAs in Nasopharyngeal Carcinoma (NPC) by constructing a circRNA-miRNA-mRNA co-expression network and performing differential expression analysis on mRNAs, miRNAs, and circRNAs. By comparing the expression profile of non-cancerous immortalized nasopharyngeal epithelial cell lines and NPC cell lines, we identified differentially expressed coding and non-coding RNAs. By leveraging coexpression and miRNA target prediction tools, we constructed a ceRNA network composed of mRNAs, miRNAs, and circRNAs.
Project description:Long non-coding RNAs (lncRNAs) play important roles in the tumorigenesis and progression of cancers. However, the clinical significance of lncRNAs and their regulatory mechanisms in nasopharyngeal carcinogenesis (NPC) are largely unknown. In this study, we used the microarray analysis to study the different expression profiles of lncRNAs and mRNAs in human nasopharyngeal carcinoma tissues. We performed genome-wide lncRNAs expression in 3 pairs of NPC and normal nasopharynx tissues and identified 384 dysregulated lncRNAs (fold change ≥2 and P <0.05).
Project description:Recent studies have revealed that long non-coding RNAs (lncRNAs) participate in all steps of cancer initiation and progression by regulating protein coding genes at the epigenetic, transcriptional and post-transcriptional levels. LncRNAs are in turn regulated by other genes, forming a complex regulatory network. The regulation networks between the p53 tumor suppressor and lncRNAs in nasopharyngeal carcinoma (NPC) remain unclear. The aim of this study was to investigate the regulatory roles of the TP53 gene in regulating lncRNA and mRNA expression profiles in NPC cell line HNE2. p53 induced gene expression in human nasopharyngeal carcinoma cell line HNE2 was measured at 0, 12, 24 and 48 hours after transfected by pCMV-p53 plasmid.
