ANLN在肾透明细胞癌中的表达及其与预后和免疫浸润相关性的生物信息学分析

Bioinformatics analysis of ANLN expression in clear cell renal cell carcinoma and its correlation with prognosis and immune infiltration

目的:探讨肌动蛋白结合蛋白ANLN在肾透明细胞癌(ccRCC)中的诊断和预后价值及其与肿瘤微环境的关系。方法:从癌症基因组图谱(TCGA)数据库下载ccRCC基因表达数据和临床数据。Wilcoxon秩和检验和Logistic回归评估ANLN表达与临床病理特征的关系。受试者工作特征(ROC)曲线评估ANLN表达在ccRCC中的诊断价值。Kaplan-Meier和Cox回归分析研究ANLN表达对总生存期的影响。基因集富集分析(GSEA)识别ccRCC中ANLN相关信号通路。ESTIMATE算法、肿瘤免疫估计资源(TIMER)数据库和CIBERSORT算法分析ANLN表达与免疫浸润的关系。CellMiner数据库计算ANLN与药物敏感性的关系。结果:ANLN在ccRCC组织中表达明显上调。ccRCC中ANLN表达与临床病理特征显著相关。ROC分析显示,ANLN在ccRCC中具有较高的诊断价值。ANLN高表达与预后不良显著相关。多变量Cox回归分析显示ANLN高表达是ccRCC患者总生存期的独立危险因素。GSEA显示ANLN与多种信号通路有关。在免疫方面,ANLN与ccRCC肿瘤微环境、免疫浸润和免疫检查点分子密切相关。ANLN表达与多数抗肿瘤药物敏感性呈负相关。结论:ANLN是ccRCC潜在的诊断和预后生物标志物和免疫治疗靶点。

Objective:To investigate diagnostic and prognostic value of actin-binding protein ANLN in clear cell renal cell carcinoma(ccRCC)and its relationship with tumor microenvironment.Methods:Gene expression data and clinical data for ccRCC were downloaded from The Cancer Genome Atlas(TCGA).Relationship between ANLN expression and clinicopathological features was assessed by Wilcoxon rank sum test and Logistic regression.Receiver operating characteristic(ROC)curve was used to assess diagnostic value of ANLN expression in ccRCC.Kaplan-Meier and Cox regression analysis were used to investigate effect of ANLN expression on overall survival.Gene set enrichment analysis(GSEA)was used to identify signaling pathways associated with ANLN in ccRCC.Relationship between ANLN expression and immune infiltration was analyzed by ESTIMATE algorithm,tumor immune estimation resource(TIMER)and CIBERSORT algorithms.Relationship between ANLN and drug sensitivity was calculated using CellMiner database.Results:ANLN expression was significantly upregulated in ccRCC tissues.ANLN expression in ccRCC was correlated with clinicopathological features.ROC analysis showed that ANLN had a high diagnostic value in ccRCC.High ANLN expression was significantly associated with poor prognosis.Multivariate Cox regression analysis showed that high ANLN expression was an independent risk factor for overall survival in ccRCC patients.GSEA showed that ANLN was associated with multiple signaling pathways.In terms of immunity,ANLN was closely associated with tumor microenvironment,immune infiltration and immune checkpoint molecules in ccRCC.ANLN expression was negatively correlated with sensitivity of most antitumor drugs.Conclusion:ANLN is a potential diagnostic and prognostic biomarker and immunotherapeutic target for ccRCC.