目的 研究 G2/S 期应答相关蛋白 1(G2 and S phase-expressed protein 1,GTSE1)在肝细胞癌(hepatocellular carcino-ma,HCC)中的表达、免疫学作用和预后分析,及其潜在作用机制.方法 使用公共数据库癌症基因组图谱(The Cancer Genome Atlas,TCGA)提供的数据,用Kaplan-Meier、肿瘤免疫评估资源(Tumor Immune Estimation Resource,TIMER)数据库和基因表达谱交互分析(Gene Expression Profiling Interactive Analysis,GEPIA)数据库进行GTSE1基因表达、免疫学作用及预后分析,通过免疫组化实验验证GTSE1在临床样本中的表达,应用R软件对GTSE1相关差异基因进行基因本体(gene ontology,GO)和京都基因与基因组百科全书(Kyoto Encyclopedia of Genes and Genomes,KEGG)富集分析.结果 GTSE1在人类癌组织中显著高表达,且与肝细胞癌预后不良显著相关(P＜0.05);GTSE1基因表达与HCC中浸润性免疫细胞的丰度显著相关(P＜0.001).GTSE1相关的差异表达基因主要富集于核分裂、细胞器裂变、离子通道活性等基因模块;其参与的信号通路主要包括神经活性配体-受体的相互作用、细胞周期等.结论 GTSE1在HCC中的表达显著上调并与患者预后不良显著相关,且在免疫细胞浸润中发挥重要作用,可作为HCC的预后标志物和免疫治疗靶点.
Expression of GTSE1 in Hepatocellular Carcinoma and its Effect on Prognosis and Immune Infiltration
Objective To study the expression,immunological effect and prognosis analysis of G2 and S phase-expressed protein 1(GTSE1)in hepatocellular carcinoma(HCC),and its potential action mechanism.Methods Using the data provided by the public da-tabases The Cancer Genome Atlas(TCGA),the Kaplan-Meier,Tumor Immune Estimation Resource(TIMER)and Gene Expression Profiling Interactive Analysis(GEPIA)databases were used to analyze the gene expression,immunological effect and prognosis of GTSE1,and the expression of GTSE1 in clinical samples was verified by immunohistochemical experiments.Gene Ontology(GO)and Kyoto Ency-clopedia of Genes and Genomes(KEGG)enrichment analysis of GTSE1-related differential genes was performed by R software.Results GTSE1 was significantly overexpressed in human cancer tissues,and was significantly associated with poor prognosis of liver cancer(P＜0.05).GTSE1 gene expression was significantly correlated with the abundance of infiltrating immune cells in HCC(P＜0.001).GTSE1-related differentially expressed genes were mainly enriched in gene modules such as nuclear division,organelle fission and ion channel activity.The signaling pathways involved mainly include neuroactive ligand-receptor interaction and cell cycle.Conclusion GTSE1 expression is significantly up-regulated in HCC and is significantly associated with poor prognosis,and plays an important role in immune cell infiltration,which can be used as a prognostic marker and immunotherapeutic target for HCC.
G2 and S phase-expressed protein 1Hepatocellular carcinomaPrognosisImmune cells
万方数据
维普
