RAD51 expression in pan-cancer and its prognostic and immune mechanisms in glioma.
胶质瘤是一种异质性恶性颅内肿瘤,预后差,缺乏有效的诊断和预后生物标志物。DNA修复基因RAD51参与肿瘤进展,但其在胶质瘤中的临床功能和免疫调节机制尚不明确。本研究利用TCGA、CGGA325和CGGA693胶质瘤队列数据分析RAD51表达及其与临床病理特征和预后的关系,并通过ROC曲线、生存分析、Cox回归和列线图建模进行临床评估,结合多种生物信息学分析探讨肿瘤免疫微环境调控,并使用临床标本验证蛋白表达。结果显示,RAD51在胶质瘤和泛癌中显著高表达,与肿瘤干性升高和不良预后相关;其高表达与高龄、较高WHO分级、IDH野生型和1p/19q非共缺失相关。RAD51诊断效能优异(AUC=0.960),为独立不良预后因素,验证的列线图可实现准确的风险预测。机制上,高RAD51与免疫抑制微环境相关,并与Th2细胞和巨噬细胞浸润增加相关;鉴定出19个核心RAD51相关免疫基因,均与不良预后相关。临床检测证实高级别胶质瘤中RAD51蛋白上调。研究表明,RAD51是胶质瘤稳健的诊断生物标志物和独立预后危险因素,与胶质瘤恶性特征相关,并显示与免疫基因表达改变和免疫抑制微环境的潜在联系,其列线图支持临床风险分层。
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完整作者
Liubing Hou、Yu Wang、Xiang Zhan、Jiayuan Li、Zizhou Zhang、Weijing Cai、Linlin Su、Wei Han、Xuetao Han、Yue Han、Xiaolan Lv、Xiaoying Xue、Huandi Zhou
作者机构
- Department of Radiotherapy, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, PR China; Department of Central Laboratory, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, PR China. Electronic address: houliubing2022@163.com.
- Department of Radiotherapy, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, PR China. Electronic address: wy51509297@163.com.
- Department of Radiotherapy, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, PR China. Electronic address: zhanxiangfriend@163.com.
- Department of Radiotherapy, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, PR China. Electronic address: ljyuan19950212@163.com.
- Department of Radiotherapy, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, PR China. Electronic address: zhang000428202202@163.com.
- Emergency Department, The Second Hospital of Bazhou City, Langfang, Hebei 065701, PR China. Electronic address: caidaifu@qq.com.
- Department of Radiotherapy, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, PR China. Electronic address: sulinlin0405@163.com.
- Department of Oncology, Hebei General Hospital, Shijiazhuang, Hebei 050000, PR China. Electronic address: hanjue2542@sina.com.
- Department of Radiotherapy, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, PR China. Electronic address: hxt9088@hebmu.edu.cn.
- Department of Radiotherapy, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, PR China. Electronic address: 2241394256@qq.com.
- Department of Radiotherapy, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, PR China. Electronic address: 1425744279@qq.com.
- Department of Radiotherapy, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, PR China; Hebei Key Laboratory of Etiology Tracing and Individualized Diagnosis and Treatment for Digestive System Carcinoma, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, PR China. Electronic address: xxy0636@hebmu.edu.cn.
- Department of Radiotherapy, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, PR China; Hebei Key Laboratory of Etiology Tracing and Individualized Diagnosis and Treatment for Digestive System Carcinoma, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, PR China. Electronic address: huandizhou@hebmu.edu.cn.
技术路线
公共队列数据(TCGA、CGGA325、CGGA693)→RAD51表达与临床病理/预后关联分析(ROC、生存分析、Cox回归、列线图)及多组学生物信息学免疫微环境分析→临床标本蛋白表达验证
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