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解开PFOS-NSCLC轴:集成网络毒理学,机器学习和因果推理确定EIF4EBP1作为一个关键的分子枢纽
Ting Huang1, Huaxin Pang2, Jundan Wang1
1Department of Oncology, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University, Zhejiang, Hangzhou, China.
Frontiers in public health
|March 2, 2026
概括
暴露于 perfluorooctanesulfonic 酸 (PFOS) 与通过EIF4EBP1与肺癌有关,EIF4EBP1是一种影响瘤发育和免疫反应的关键基因. 这项研究揭示了EIF4EBP1作为将PFOS与肺腺癌风险连接起来的潜在桥梁.
科学领域:
- 环境毒理学环境毒理学
- 癌症基因组学 癌症基因组学
- 系统生物学 系统生物学
背景情况:
- perfluorooctanesulfonic 酸 (PFOS) 是一种持久性污染物,可疑具有致癌性.
- 关联PFOS与非小细胞肺癌 (NSCLC) 的分子机制尚不清楚.
- 在PFOS相关的NSCLC中,化学暴露,瘤信号和瘤微环境重塑之间的相互作用需要阐明.
研究的目的:
- 确定将PFOS暴露与NSCLC病变发生联系起来的分子机制.
- 阐明EIF4EBP1作为PFOS和NSCLC之间的机械联系的作用.
- 调查PFOS对瘤微环境和瘤原体信号传递的影响.
主要方法:
- 综合系统毒理学和多组学分析.
- 化学蛋白相互作用和与疾病相关的基因的网络分析.
- 机器学习 (LASSO,SVM-RFE) 用于转录数据中的特征选择.
- 使用癌症基因组图谱 (TCGA) 数据集进行外部验证.
- 门德尔随机化 (MR) 用于因果推断和CIBERSORT 用于免疫景观的表征.
- 分子对接和不良结果途径 (AOP) 机制性评估框架.
主要成果:
- 确定了PFOS和NSCLC之间共享的41个目标,富含PPAR信号和异生物代谢.
- 优先考虑EIF4EBP1作为一个关键的枢纽基因,在发现和验证队列中显著上调.
- EIF4EBP1在肺腺癌 (LUAD) 和状细胞癌 (LUSC) 中表现出亚型特定的预后值.
- EIF4EBP1表达与适应性免疫歪曲形状相关联.
- MR分析表明,EIF4EBP1表达对LUAD风险的潜在因果作用.
- 分子对接证实了PFOS和EIF4EBP1.1.之间的稳定相互作用.
结论:
- EIF4EBP1被确定为一个假定的分子节点,将PFOS暴露与LUAD易感性和免疫调节联系起来.
- 一个构建的AOP框架表明,PFOS介导的翻译失调有助于亚型特异性致癌.
- 调查结果为风险评估提供了数据驱动的理由,并为进一步的实验验证提供了理由.
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