Journal
MEDICAL SCIENCE MONITOR
Volume 25, Issue -, Pages 6213-6220Publisher
INT SCIENTIFIC INFORMATION, INC
DOI: 10.12659/MSM.914815
Keywords
Prognosis; Stomach Neoplasms; Survival Analysis
Categories
Ask authors/readers for more resources
Background: The aim of the study was to identify a multigene prognostic factor in patients with gastric cancer (GC). Material/Methods: Random survival forest (RSF) was performed to screen survival-related genes and develop a multigene combi- nation based on the cumulative hazard function of each GC patient in TCGA-STAD and GSE15459. Kaplan-Meier curve and univariate and multivariable Cox proportional hazards regression model were applied to evaluate the prognostic performance of the 5-gene combination. C-index was used to compare the prognostic performance of the 5-gene combination and another 9-gene signature in GC. Gene set enrichment analysis (GSEA) was conducted. Results: We obtained 19 survival-related genes through univariate Cox proportional hazards analysis in the training set, 5 of which were identified and were used to develop a 5-gene combination through RSF. Patients in the 5-gene combination low-risk group had better overall survival (OS) than those in the 5-gene combination high-risk group, and the 5-gene combination was demonstrated to be an independent prognostic factor in patients with GC The 5-gene combination outperformed the 9-gene signature in predicting the OS of GC patients, and it might affect the prognosis of GC patients through E2F signaling, MYC signaling, and G2M checkpoint. Conclusions: We introduce a 5-gene combination that can predict the survival of GC patients and might be an independent prognostic factor in GC.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available