NOX4在胃癌评价中的意义探索

Exploration of the significance of NOX4 in the evaluation of gastric cancer

目的:探究NADPH氧化酶4(NOX4)在胃癌中的表达、预后、信号通路的作用及与肿瘤组织中浸润的免疫细胞的关系。方法:从癌症基因图谱(TCGA)和基因表达数据库(GEO)下载数据,分析NOX4在胃癌组织和正常组织的表达、NOX4表达水平和患者临床病理因素的关系、信号通路的基因富集分析及免疫浸润分析。结果:NOX4表达量肿瘤组织较正常组织明显偏高,具有一定的诊断价值;NOX4是一个重要的预后因子,高表达组患者预后不良;NOX4的表达和患者临床病理分期相关;NOX4和WNT、转化生长因子-β(TGF-β)及细胞黏附分子(CAMs)信号通路相关;对于NOX4高表达组而言,主要影响肿瘤组织的因素为M2型巨噬细胞及浆细胞浸润。结论:在胃癌形成进展中,NOX4发挥着重要影响。

Objective:This article is to investigate NADPH oxidase 4(NOX4)expression,prognosis,signaling pathway and key immune cells infiltrating in tumor tissues in gastric cancer.Methods:Data were downloaded from the Cancer Genome Atlas(TCGA)and the Integrated Gene Expression Database(GEO).The expression of NOX4 in gastric cancer and normal tissues,the relationship between NOX4 expression level and clinical characteristics of patients,gene enrichment analysis of signaling pathways and immune infiltration analysis have been analyzed.Results:In terms of NOX4 expression,tumor tissue is significantly higher than normal tissue,which has certain diagnostic value;NOX4 is an important prognostic factor with poor prognosis in patients with high NOX4 expression;NOX4 is associated with cell adhesion molecules(CAMs),transforming growth factor-β(TGF-β),and WNT signaling pathway.NOX4 high expression group was mainly related to M2 macrophages and plasma cell infiltration in tumor tissues. Conclusion: NOX4 plays an important role in the progression of gastric cancer (GC).