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基于机器学习的风险模型,结合瘤免疫和 stromal contexture 预测癌症预后和免疫疗法的有效性
Li-Na He1, Haifeng Li1,2, Wei Du1,2
1Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China.
iScience
|July 7, 2023
概括
使用6个瘤微环境 (TME) 基因的新风险评分模型 (TMErisk) 预测肺癌患者的治疗结果不佳. 这种TME风险模型还表明,在各种癌症中,免疫治疗的反应减少了.
科学领域:
- 在瘤学瘤学.
- 免疫学 免疫学 免疫学
- 生物信息学是一种生物信息学.
背景情况:
- 瘤微环境 (TME),包括免疫和层细胞,显著影响癌症的进展和治疗的有效性.
- 了解TME的作用对于开发预测生物标志物和改善癌症治疗策略至关重要.
研究的目的:
- 开发一种基于状细胞肺癌的TME相关基因的预测风险评分模型 (TMErisk).
- 评估模型预测患者预后和免疫治疗反应的能力.
主要方法:
- 通过分析与免疫和 stromal 评分的相关性,确定了与 TME 相关的基因.
- 利用LASSO-Cox回归来构建TME风险模型,使用六个选定的基因.
- 在多个非小细胞肺癌 (NSCLC) 数据集和其他癌症中验证了TME风险模型.
主要成果:
- 建立了一个六基因TME风险模型,显示了与肺状细胞癌 (LUSC) 和NSCLC的不利整体存活率 (OS) 的显著相关性.
- 高TME风险组被免疫抑制途径中的基因丰富,并且表现出免疫抑制细胞透率增加.
- 在多种癌症类型中,高TME风险与更差的预后和免疫治疗反应的降低有关.
结论:
- TME风险模型作为一个强大的生物标志物,用于预测癌症患者的整体存活率和免疫治疗反应.
- 该模型强调了瘤微环境在肺癌和其他癌症中的预后和预测意义.
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