通过最小侵入性鼻腔储存 (MIND) 输送ATSP-7041到向扩散内在的庞丁质瘤
Andy J Chua1, Valentina Di Francesco1, Bethany Tesar2
1Northeastern University United States.
Molecular cancer therapeutics
|January 31, 2026
概括
一种新的最小侵入性鼻腔储存 (MIND) 技术成功地将ATSP-7041,一种双重HDM2/HDMX抑制剂,输送到大脑中. 这种方法对通过重新激活p53.3来治疗扩散内在的庞丁瘤 (DIPG) 是有前途的.
科学领域:
- 在瘤学瘤学.
- 神经科学是一个神经科学.
- 药理学 药理学是指药理学的学科.
背景情况:
- 扩散内在庞丁质瘤 (DIPG) 是一种致命的儿科脑瘤,由于其位置和耐药性,治疗结果不佳.
- 目前的疗法面临来自血脑屏障 (BBB) 和瘤耐药性的挑战,限制了全身药物的疗效.
研究的目的:
- 评估一种用于向中枢神经系统 (CNS) 输送ATSP-7041的新策略,这是一种双重HDM2/HDMX抑制剂,用于DIPG治疗.
- 评估Minimally Invasive Nasal Depot (MIND) 技术在整个BBB中提供ATSP-7041的有效性.
主要方法:
- 从p53-野生型,PPM1D突变DIPG (BT869) 中利用神经圈来测试ATSP-7041对RG7388.8.的抗瘤活性.
- 在小鼠中通过MIND技术给药ATSP-7041,以评估中枢神经系统分布和持久性.
- 评估了MIND交付的ATSP-7041在DIPG的患者衍生的正极管异种移植 (PDX) 模型中的疗效.
主要成果:
- 在DIPG神经圈中,ATSP-7041的抗瘤活性明显高于RG7388,与HDMX表达相关.
- 在包括小马在内的老鼠大脑区域中,MIND的输送达到了持续的ATSP-7041水平,长达14天.
- 在DIPG PDX模型中,一次MIND-administeredATSP-7041剂量减少了瘤负担并改善了生存率.
结论:
- MIND平台能够有效地向中枢神经系统输送ATSP-7041,这是一种强大的双重HDM2/HDMX抑制剂.
- 这项研究提供了在DIPG中使用MIND交付的ATSP-7041.1进行p53激活的概念验证.
- 这些发现支持进一步调查ATSP-7041 (ALRN-6924) 针对DIPG和其他野生型p53.3型脑瘤.
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