KEAP1/NFE2L2路径签名优于KEAP1/NFE2L2突变状态,并揭示NSCLC中的替代路径激活突变
Christoph Arolt1, Margaret Dugan2, Robert Wild2
1Institute of Pathology, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany.
概括
一个新的K1N2得分准确地识别了非小细胞肺癌 (NSCLC) 中激活KEAP1/NFE2L2 (NRF2) 途径的瘤. 这种签名是选择患者接受向治疗的有希望的工具.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 基因组学就是基因组学.
背景情况:
- KEAP1/NFE2L2 (NRF2) 途径在非小细胞肺癌 (NSCLC) 中至关重要,驱动谷氨酸依赖和侵略性瘤表型.
- 这种途径的激活在NSCLC治疗中具有潜在的治疗点.
研究的目的:
- 开发和验证一个转录组签名,用于识别NSCLC中的KEAP1/NFE2L2激活瘤.
- 评估该签名能够预测路径激活和患者存活的能力.
主要方法:
- 使用971个NSCLC样本开发了一个46个基因表达特征 (K1N2分数),以预测KEAP1/NFE2L2突变.
- 该签名在348个NSCLC样本的独立队列中使用NanoString表达分析进行了验证.
主要成果:
- 在K1N2得分准确预测KEAP1/NFE2L2突变 (AUC: 89.5%,灵敏度: 90.2%) 在不同的组织学.
- 与KEAP1/NFE2L2突变状态相比,K1N2得分对患者生存的预测价值更高.
- 确定了SMARCA4/BRG1和CUL3突变作为模仿KEAP1/NFE2L2激活的替代基因组驱动因素.
结论:
- K1N2评分有效地识别KEAP1/NFE2L2激活的NSCLC,包括具有替代基因组驱动因素的病例.
- 这种特征有可能用于选择具有构成性活性KEAP1/NFE2L2通路的患者进行向治疗.
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