Research Paper Volume 13, Issue 4 pp 5539—5552

Development and validation of RNA binding protein-applied prediction model for gastric cancer

Shuang Dai1, *, , Yan Huang1, *, , Ting Liu1, , Zi-Han Xu1, , Tao Liu2, , Lan Chen1, , Zhi-Wu Wang3, , Feng Luo2, ,

  • 1 Department of Medical Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, P.R. China
  • 2 Department of Medical Oncology, Lung Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, P.R. China
  • 3 Department of Chemoradiotherapy, Tangshan People’s Hospital, Tangshan 063000, P.R. China
* Equal contribution

Received: September 22, 2020       Accepted: December 9, 2020       Published: February 11, 2021
How to Cite

Copyright: © 2021 Dai et al. This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.


RNA-binding proteins (RBPs) have been reported to be associated with the occurrence and progression of multiple cancers, but the role in gastric adenocarcinoma remains poorly understood. The present study aims to uncover potential RBPs associated with the survival of gastric adenocarcinoma, as well as corresponding biologic properties and signaling pathways of these RBPs. RNA sequencing and clinical data of GC were obtained from The Cancer Genome Atlas (n=373) and the Gene Expression Omnibus (GSE84437, n=433) database. Tumor samples in TCGA were randomly divided into the training and internal testing group by R software. A total of 238 DERBPs were selected for univariate and multivariate Cox regression analyses. Five pivotal RBP genes (RNASE2, METTL1, ANG, YBX2 and LARP6) were screened out and were used to construct a new prognostic model. Survival relevance and prediction accuracy of model were tested via Kaplan-Meier (K-M) curves and receiver operating characteristic (ROC) curves in internal and external testing groups. Further analysis has also showed that this model could serve as an independent prognosis-related parameter. A prognostic nomogram has been eventually developed, and presents a good performance of prediction.


RBP: RNA-binding protein; GC: Gastric cancer; MMR: Mismatch repair; DERBPs: Differentially expressed genes; BP: Biological process; CC: Cellular component; MF: Molecular function; AUCs: Area under the ROC curves; FDR: False discovery rate; KEGG: Kyoto Encyclopedia of Genes and Genomes; GO: Gene Ontology; GSEA: Gene Set Enrichment Analysis.