以线粒体为目标的微针可以通过亡-亡协同作用逆转多克索鲁比辛抵抗
Tianshu Hao1, Hanze Guo2, Chenyuan Wang1
1Department of Stomatology, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan 430071, China.
ACS nano
|June 19, 2025
概括
微针贴片将多克索鲁比 (DOX) 直接输送到耐药乳腺癌细胞中的线粒体. 这种向的输送通过诱导亡和铁亡来克服化学抵抗,有效地抑制瘤生长.
科学领域:
- 生物医学工程 生物医学工程
- 纳米技术纳米技术
- 癌症生物学 癌症生物学
背景情况:
- 抗多克索鲁比 (DOX) 耐药乳腺癌细胞中的线粒体功能过度增强氧化应激,导致化疗耐药性.
- 需要有针对性的输送策略来克服癌症治疗中器官特异性抵抗机制.
研究的目的:
- 开发一种针对线粒体的微针 (MN) 输送系统,用于 doxorubicin (DOX) 克服化学阻力.
- 研究这种向传递系统在诱导癌细胞死亡中的作用机制.
主要方法:
- 合成中空的DOX-TPP@ZIF-67纳米颗粒,载有针对线粒体的DOX-TPP.
- 制造快速溶解的MN贴片,用于局部化,有机体特定的药物输送.
- 在DOX抗性乳腺癌细胞和动物模型中评估治疗疗效.
主要成果:
- 线粒体积累的DOX-TPP诱导反应性氧物种 (ROS) 的过度生产,亡和铁亡.
- 输送系统扰乱了谷氨 (GSH) 代谢,使GPX4失活,促进了脂质过氧化.
- 在动物模型中,有针对性的MN输送有效抑制了耐化学药性瘤的生长,并延长了生存时间.
结论:
- 针对线粒体的MN输送是克服乳腺癌中多克索鲁比辛耐药性的精确策略.
- 增强的Anthracycline疗效协同激活线粒体功能障碍,亡和铁亡.
- 这种方法为耐化学药性癌症提供了一个有前途的治疗途径.
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