Three Survival-Related Genes of Esophageal Squamous Cell Carcinoma Identified by Weighted Gene Coexpression Network Analysis | Zendy

Di Lu | Zendy; He Wang | Zendy; Xuanzhen Wu | Zendy; Jianxue Zhai | Zendy; Xiguang Liu | Zendy; Xiaoying Dong | Zendy; Siyang Feng | Zendy; Xiaoshun Shi | Zendy; Jianjun Jiang | Zendy; Zhizhi Wang | Zendy; Zhiming Chen | Zendy; Shuhua Zhao | Zendy; Jinhua Zhong | Zendy; Gang Xiong | Zendy; Hua Wu | Zendy; Haofei Wang | Zendy; Kaican Cai | Zendy

Open Access

Three Survival-Related Genes of Esophageal Squamous Cell Carcinoma Identified by Weighted Gene Coexpression Network Analysis

Author(s) -

Di Lu,

He Wang,

Xuanzhen Wu,

Jianxue Zhai,

Xiguang Liu,

Xiaoying Dong,

Siyang Feng,

Xiaoshun Shi,

Jianjun Jiang,

Zhizhi Wang,

Zhiming Chen,

Shuhua Zhao,

Jinhua Zhong,

Gang Xiong,

Hua Wu,

Haofei Wang,

Kaican Cai

Publication year - 2021

Publication title -

complexity

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.447

H-Index - 61

eISSN - 1099-0526

pISSN - 1076-2787

DOI - 10.1155/2021/9997783

Subject(s) - lasso (programming language) , kegg , gene , biology , computational biology , proportional hazards model , survival analysis , gene regulatory network , esophageal squamous cell carcinoma , oncology , bioinformatics , gene expression , genetics , medicine , cancer , gene ontology , computer science , world wide web

Background. The aim of this study was to identify novel biomarkers associated with esophageal squamous cell carcinoma (ESCC) prognosis. Methods. 81 ESCC samples collected from The Cancer Genome Atlas (TCGA) were used as the training set, and 179 ESCC samples collected from the Gene Expression Omnibus database (GEO) were used as the validation set. The protein-coding genes of 25 samples from patients who completed the follow-up in TCGA were analyzed to construct a coexpression network by weighted gene coexpression network analysis (WGCNA). Gene ontology (GO) terms and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways analyses were performed for the selected genes. The least absolute shrinkage and selection operator (LASSO) Cox regression model was constructed to analyze survival-related genes, and an optimal prognostic model was developed as well as evaluated by Kaplan–Meier and ROC curves. Results. In this study, a module containing 43 protein-coding genes and strongly related to overall survival (OS) was identified through WGCNA. These genes were significantly enriched in retina homeostasis, antimicrobial humoral response, and epithelial cell differentiation. Besides, through the LASSO regression model, 3 genes (PDLIM2, DNASE1L3, and KRT81) significantly related to ESCC survival were screened and an optimal prognostic 3-gene risk prediction model was constructed. ESCC patients with low and high OS in both sets could be successfully discriminated by calculating a risk score with the linear combination of the expression level of each gene multiplied by the LASSO coefficient. Conclusions. Our study identified three novel biomarkers that have potential in the prognosis prediction of ESCC.

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