通过PKM2乳化促进结肠直肠癌血管性仿真和贝瓦西祖马布耐药性,通过促进FOSL1超强增强剂的形成
Weihao Li1, Jianhong Peng2, Jiahua He1
1Sun Yat-sen University Cancer Center Guangzhou China.
Cancer research
|March 5, 2026
概括
研究人员发现了乳酸如何通过PKM2乳化驱动结肠直肠癌 (CRC) 中对贝瓦齐祖马布的耐药性. 针对这种机制可以增强bevacizumab的效果.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 生物化学 生物化学
背景情况:
- 贝瓦西祖马布对于晚期结直肠癌 (CRC) 治疗至关重要.
- 对贝瓦西祖马布的耐药性限制了其在CRC患者的临床有效性.
研究的目的:
- 阐明 CRC 中贝瓦西祖马布耐药性的机制.
- 调查乳酸和PKM2乳化在驱动血管仿真 (VM) 和耐药性的作用.
主要方法:
- 在K206中通过AARS1.1调解的PKM2乳的研究.
- 研究了PKM2的核转位和与FOSL1.1的相互作用.
- 在临床前CRC模型中评估了PKM2乳化抑制对VM的影响和贝瓦齐祖马布的疗效.
主要成果:
- 在K206的PKM2乳化促进了PKM2的核转位和FOSL1相互作用.
- 这种相互作用驱动了FOSL1依赖的超强增强剂的形成和基因转录,导致CRC细胞VM.
- 在临床前模型中,抑制PKM2乳化破坏了VM并增强了bevacizumab的疗效.
结论:
- 乳糖化作为一种代谢开关,将糖溶性重编程与癌症的转录变化联系起来.
- 向PKM2乳化是一种潜在的策略,可以克服CRC中的贝瓦西祖马布耐药性.
- 这种方法可以显著改善贝瓦齐祖马布在CRC治疗中的抗瘤活性.
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