洛拉提尼布和卡普马提尼布在ROS1重组的NSCLC中具有MET驱动的耐药性:瘤反应和演变
Jaime L Schneider1,2, Khvaramze Shaverdashvili3,4, Mari Mino-Kenudson1,2
1Massachusetts General Hospital Cancer Center and Department of Medicine, Boston, MA, 02114, USA.
NPJ precision oncology
|November 4, 2023
概括
获得的MET放大可以驱动肺癌中对ROS1抑制剂的耐药性. 与MET抑制剂的联合治疗可以克服这种抗性,但可能会出现新的抗性机制.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 癌症基因组学 癌症基因组学
背景情况:
- 获得的耐药性是治疗瘤基因驱动癌症的一个重大挑战.
- 了解抵抗机制对于开发有效的癌症疗法至关重要.
研究的目的:
- 研究获得的MET放大作为ROS1重组肺腺癌中抵抗机制.
- 评估针对ROS1和MET通路的组合疗法的疗效.
- 分析序列向治疗期间的动态分子变化.
主要方法:
- 序列瘤和血样本的基因组和蛋白质组分析.
- 下一代测序用于识别遗传改变.
- 在内和外瘤治疗反应的评估.
主要成果:
- 获得的MET放大被确定为ROS1抑制剂治疗后的抗性机制.
- 与洛拉丁尼布 (ROS1抑制剂) 和卡普马丁尼布 (MET抑制剂) 的联合治疗显示出瘤反应.
- 复发显示了MET D1246N突变和MET放大损失,表明多克隆性耐药性.
结论:
- 顺序的向疗法可以推动复杂的瘤进化和新兴的耐药性.
- MET放大是ROS1重排列肺癌中一个关键的绕道机制.
- 制定预防或克服获得性耐药性的策略对于改善患者长期治疗结果至关重要.
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