NOTCH3驱动脂肪酸氧化和耐铁的抵抗在侵略性脑膜瘤
Nishanth S Sadagopan1,2, Mateo Gomez1,2, Shashwat Tripathi1,2
1Department of Neurological Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.
Journal of neuro-oncology
|September 9, 2025
概括
NOTCH3信号传导通过促进脂肪酸氧化,耗尽脂质,并赋予对铁亡的抵抗力来驱动侵略性脑膜瘤. 这种代谢重编程突出了NOTCH3阳性瘤的潜在治疗漏洞.
科学领域:
- 在瘤学瘤学.
- 癌症新陈代谢 癌症新陈代谢
- 分子生物学分子生物学
背景情况:
- NOTCH3信号传递与各种癌症有关,包括脑膜瘤.
- 之前的研究将NOTCH3的表达与更高度的脑膜瘤和治疗耐药性联系起来.
- 与脑膜瘤中NOTCH3激活相关的代谢表型在很大程度上仍未被探索.
研究的目的:
- 为了研究NOTCH3激活在脑膜瘤中的代谢后果.
- 探索NOTCH3在脂质代谢和铁亡逃避中的作用.
- 根据NOTCH3-介导的代谢变化来确定潜在的治疗点.
主要方法:
- 对NOTCH3阳性脑膜瘤细胞系的单细胞RNA测序.
- 在CH157-MN细胞模型中NOTCH3细胞内域 (ICD) 的过度表达.
- 非向的代谢学,脂质学,大量RNA测序和功能代谢分析.
主要成果:
- NOTCH3的激活促进脂肪酸氧化 (FAO),耗尽脂质池并增加对铁亡的抵抗力.
- NOTCH3的表达与CD36相关,CD36是一种脂肪酸载体,并增强了线粒体呼吸.
- NOTCH3 ICD的过度表达导致粮农组织基因的上调调节和对铁亡的抵抗,通过抑制CPT1可逆.
结论:
- NOTCH3信号与脂质代谢重编程和侵袭性脑膜瘤中的铁亡脱离有关.
- 这种代谢转变有助于NOTCH3阳性脑膜瘤的恶性行为.
- 这些发现为脑膜瘤的生物化学脆弱性提供了新的见解,并建议针对NOTCH3驱动代谢的潜在治疗策略.
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