Competitive Endogenous RNA (ceRNA) Regulation Network of lncRNA–miRNA–mRNA in Wilms tumor
Abstract Background: Competitive endogenous RNA (ceRNA) have revealed a new mechanism of interaction between RNAs. However, such comprehension of the ceRNA regulatory network in wilms tumor remains limited. Methods: Raw RNA sequencing profiles regarding mRNAs, miRNAs and lncRNAs on wilms tumor samples and normal samples were obtained from Therapeutically Applicable Research to Generate Effective Treatment (TARGET). EdgeR package was applied to identify differentially expressed lncRNAs, miRNAs and mRNAs. Functional enrichment analyses were conducted via DAVID database and the ClusterProfile R package. The lncRNA–miRNA–mRNA interaction ceRNA network was established in Cytoscape according to the identified lncRNAs–miRNAs and miRNAs–mRNAs interactions. Subsequently, correlation between ceRNA network and overall survival prognosis were analyzed. Results: A total of 2,037 lncRNAs, 154 miRNAs and 3,609 mRNAs were identified as differentially expressed RNAs in wilms tumor. 205 lncRNAs, 26 miRNAs and 143 mRNAs were included in ceRNA regulatory network. Analysis results showed that 14 out of the 205 lncRNAs, 1 out of 26 miRNAs and 8 out of 143 mRNAs were associated with overall survival in Wilms tumor patients (P < 0.05). Conclusions: CeRNA networks played an important role in Wilms tumor. This might provide effective bioinformatics basis and novel insights for further understanding of the mechanisms underlying Wilms tumor.