Effects of RNA Binding Proteins on the Prognosis and Malignant Progression in Prostate Cancer

Frontiers in Genetics
Xiaoliang HuaChaozhao Liang

Abstract

Prostate cancer (PCa) is a common lethal malignancy in men. RNA binding proteins (RBPs) have been proven to regulate the biological processes of various tumors, but their roles in PCa remain less defined. In the present study, we used bioinformatics analysis to identify RBP genes with prognostic and diagnostic values. A total of 59 differentially expressed RBPs in PCa were obtained, comprising 28 upregulated and 31 downregulated RBP genes, which may play important roles in PCa. Functional enrichment analyses showed that these RBPs were mainly involved in mRNA processing, RNA splicing, and regulation of RNA splicing. Additionally, we identified nine RBP genes (EXO1, PABPC1L, REXO2, MBNL2, MSI1, CTU1, MAEL, YBX2, and ESRP2) and their prognostic values by a protein-protein interaction network and Cox regression analyses. The expression of these nine RBPs was validated using immunohistochemical staining between the tumor and normal samples. Further, the associations between the expression of these nine RBPs and pathological T staging, Gleason score, and lymph node metastasis were evaluated. Moreover, these nine RBP genes showed good diagnostic values and could categorize the PCa patients into two clusters with different malignant p...Continue Reading

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Datasets Mentioned

BETA
GSE54460
GSE70768
GSE70769

Methods Mentioned

BETA
surgical resection
RNA-Seq
PCA

Software Mentioned

glmnet
cBioPortal
Search Tool for the Retrieval of Interacting Genes ( STRING
GSEA
R
UCSC Xena
Gene Set Enrichment Analysis ( GSEA )
ggplot2
RNA
limma

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