在RTK/RAS途径向治疗的获得性耐药性的现场建模
Nancy E Sealover1, Patricia T Theard1, Jacob M Hughes1
1Department of Pharmacology and Molecular Therapeutics, Uniformed Services University of the Health Sciences, Bethesda, MD, USA.
iScience
|January 16, 2024
概括
通过抑制SHP2信号传递,可以延迟获得的对癌症疗法的耐药性,如奥西默蒂尼布. 这种方法使耐药细胞重新敏感,并为抗癌基因驱动癌症的组合疗法提供了一个新的框架.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 药理学 药理学是指药理学的学科.
背景情况:
- 内在和获得的耐药性限制了瘤基因向癌症治疗的有效性.
- 开发可靠的模型来研究获得性耐药性对于改善治疗策略至关重要.
研究的目的:
- 描述和验证一种现场耐药性测试 (ISRA) 用于建模对RTK/RAS途径向疗法的获得性耐药性.
- 研究SHP2抑制剂在EGFR突变肺腺癌中克服奥西默提尼布耐药性的潜力.
主要方法:
- 在现场抗性测试 (ISRA) 的开发和应用.
- 在EGFR突变肺腺癌 (LUAD) 细胞系中建模奥西默蒂尼布耐药性.
- 测试SHP2抑制剂与向治疗结合的疗效.
主要成果:
- 在ISRA可靠的模型中,获得了对RTK/RAS途径向疗法的耐药性.
- 抑制SHP2显著延迟了获得的奥西默提尼布耐药性和重新敏感化的耐药细胞.
- 通过阻断并行RTKs的增强激活,SHP2抑制减少了MAPK信号传递.
结论:
- 现场耐药性测试是模拟针对癌症向治疗的获得性耐药性的可操作工具.
- 用SHP2抑制剂抑制近端RTK信号传递是一种有前途的策略,可以克服获得的耐药性.
- 这一框架可以指导开发协同作用的药物组合,以有效地向获得的耐药性.
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