构建叶酸代谢基因特征,用于预测肺神经内分泌癌的预后
Quanying Tang1,2, Luoyi Li1,3, Ruiyao Wang1,4
1Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Lung Cancer Institute, Tianjin Medical University General Hospital, Tianjin 300052, China.
Journal of Cancer
|November 8, 2024
概括
叶酸代谢基因是肺神经内分泌癌 (PNECs) 的关键生物标志物. 一个特定的基因特征可以预测预后,指导治疗,并改善PNEC患者的治疗结果.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 遗传学 是一个遗传学.
背景情况:
- 叶酸代谢对细胞增殖至关重要,并与各种癌症有关.
- 叶酸代谢在肺神经内分泌癌 (PNECs) 中的具体作用尚不清楚.
研究的目的:
- 研究叶酸代谢基因在PNECs中的作用.
- 确定PNECs的预后生物标志物和治疗点.
主要方法:
- 分析了来自GEO数据库的基因表达和临床数据.
- 使用卡普兰-梅尔和考克斯回归评估了叶酸代谢基因的预后值.
- 使用机器学习算法 (SVM-RFE,RF,Xgboost,LASSO) 识别了核心基因.
- 使用共识聚类来分层患者.
- 在体外实验证实了ALDH1L2.2.的功能.
主要成果:
- 在26个叶酸代谢基因中,有20个在PNEC组织中呈现差异性表达.
- 16个基因被确定为PNECs的预后标记物.
- 三个核心基因被分离出来,导致两个不同的患者群,生存率和免疫透率不同.
- 发现ALDH1L2在PNEC细胞中过度表达,其敲除抑制了增殖和迁移.
结论:
- 叶酸代谢基因签名作为PNECs的可靠生物标志物.
- 基于这种特征的患者分层可以指导治疗策略.
- 针对叶酸代谢途径,特别是ALDH1L2,可能为PNECs提供治疗效益.
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