同时抑制癌症和野生型RAS- GTP用于癌症治疗
Matthew Holderfield1, Bianca J Lee1, Jingjing Jiang1
1Revolution Medicines, Redwood City, CA, USA.
Nature
|April 8, 2024
概括
一种新的药物RMC-7977在治疗各种RAS突变癌症方面具有前景. 这种RAS(ON) 多选择性抑制剂针对多种RAS变体,包括KRAS,NRAS和HRAS,具有难以治疗的瘤的潜力.
科学领域:
- 癌症学
- 分子生物学
- 药物发现
背景情况:
- 在癌症中,RAS瘤基因 (KRAS,NRAS,HRAS) 经常发生突变,导致瘤生长.
- 目前的KRAS (G12C) 抑制剂显示有效性,但仅针对KRAS突变的一个子集.
- 针对大多数RAS突变癌症的疗法存在重大未满足的需求.
研究的目的:
- 推出RMC-7977,一种新的RAS(ON) 多选择性抑制剂.
- 评估RMC-7977对广泛的RAS驱动癌症的临床前疗效.
- 评估RMC-7977在对现有KRAS ((G12C)) 疗法的耐药性模型中的活性.
主要方法:
- 开发一种可逆的三复合RAS抑制剂RMC-7977.
- 在各种RAS基因型的RAS成癌症模型中进行临床前测试.
- 在KRAS(G12C) 抑制剂耐药模型中对RMC-7977的评估.
主要成果:
- 针对RAS成的瘤,特别是KRAS G12X模型,RMC-7977表现出强烈的活性.
- 抑制剂诱导瘤回归,并且在临床前模型中耐受良好.
- 通过向RAS通路信号,RMC-7977有效地抑制了KRAS (G12C) 耐药模型的生长.
结论:
- 像RMC-7977这样的多选择性抑制剂可以向多种致癌性和野生型RAS异型.
- 这些抑制剂有潜力治疗广泛的RAS成癌症,其未满足的需求很大.
- 一种相关的抑制剂RMC-6236正在KRAS突变固体瘤的临床试验中.
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