Comprehensive Analysis of the Prognostic Role and Mutational Characteristics of m6A-Related Genes in Lung Squamous Cell Carcinoma

Frontiers in Cell and Developmental Biology

Xin Shi¹  Wenli Qiu³  Yumei Chen⁴  Xufeng Pan⁵  Chang Gu⁶  Feng Shen⁷  Yan Yu⁷  Zhenyu Huang⁸ 

[1] Department of Cardiology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China;Department of Colorectal and Anal Surgery, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China;Department of Lab Medicine, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China;Department of Nuclear Medicine, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China;Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China;Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China;School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China;Shanghai Colorectal Cancer Research Center, Shanghai, China;

关键词: m6A;    prognosis;    lung squamous cell carcinoma;    RNA methylation;    nomogram;   

DOI  :  10.3389/fcell.2021.661792

来源: DOAJ

【 摘 要 】

BackgroundThere have been limited treatment therapies for lung squamous cell carcinoma (LUSC). M6A-related genes may be the next therapeutic targets for LUSC. In this study, we explored the prognostic role and mutational characteristics of m6A-related genes in LUSC.MethodsLUSC gene expression data, mutational data, and corresponding clinical information were extracted from The Cancer Genome Atlas database. Differentially expressed genes (DEGs) were identified, and the mutation characteristics of LUSC patients were explored. Then, m6A-related genes were extracted and the correlations among the genes were detected. Finally, the prognostic roles of the genes were investigated and the nomogram model was developed. Besides, the protein–protein interaction (PPI) network was used to explore the potential interactions among the genes.ResultsIn total, there are 551 LUSC samples enrolled in our study, containing 502 LUSC tumor samples and 49 adjacent normal LUSC samples, respectively. There were 2970 upregulated DEGs and 1806 downregulated DEGs were further explored. IGF2BP1 and RBM15 had significant co-occurrence frequency (p < 0.05). Besides, METTL14 and ZC3H13 or YTHDF3 also had significant co-occurrence frequency (p < 0.05). All the m6A-related genes represent the positive correlation. WTAP was identified as a prognostic gene in the TCGA database while YTHDC1 and YTHDF1 were identified as prognostic genes. In multivariate Cox analysis, YTHDF1, age, pN stage, pTNM stage, and smoking were all identified as significant prognostic factors for OS.ConclusionWe investigated the expression patterns and mutational characteristics of LUSC patients and identified three potential independent prognostic m6A-related genes (WTAP, YTHDC1, and YTHDF1) for OS in LUSC patients.

【 授权许可】

Unknown