向actin的磁纳米电机机械调节瘤 癌症治疗的机械微环境
Xing Fan1, Haotian Chen1,2, Yuan Li1
1Shanghai Key Laboratory of Anesthesiology and Brain Functional Modulation, Clinical Research Center for Anesthesiology and Perioperative Medicine, Translational Research Institute of Brain and Brain-Like Intelligence, Collaborative Innovation Center for Brain Science, Shanghai Fourth People's Hospital, School of Medicine, Tongji University, Shanghai 200434, China.
ACS nano
|February 6, 2025
概括
这项研究引入了磁性纳米电机,通过向actin细胞骨架来重塑瘤机械微环境 (TMME). 这种方法可以降低瘤的硬性,抑制瘤的生长,提供一种新的基于机械的癌症治疗方法.
科学领域:
- 生物医学工程 生物医学工程
- 癌症生物学 癌症生物学
- 纳米技术纳米技术
背景情况:
- 异常的瘤机械微环境 (TMME) 与免疫疗法耐药性有关.
- 乙细胞骨架控制细胞机制,是TMME调节的目标.
研究的目的:
- 开发一种动态调节actin细胞骨架以重塑TMME的方法.
- 为了研究活性蛋白结合蛋白修饰磁性纳米电机 (ABP-MN) 对于癌症治疗的疗效.
主要方法:
- 使用超小 (23 nm) ABP-MNs以准细胞内活性细胞骨架.
- 应用旋转磁场 (MF) 来诱导磁力机械力和actin去聚合.
- 在瘤矩阵刚度,免疫细胞透和瘤生长中的量化变化.
主要成果:
- 癌症相关纤维细胞和瘤细胞 (∼69.3%) 内化了ABP-MN.
- 磁场应用导致瘤矩阵刚度减少7倍.
- 观察到免疫细胞透的增加和95.8%的瘤生长抑制.
结论:
- 通过ABP-MNs和MF动态调节动因细胞骨架,可以重塑TMME.
- 这种细胞内机械方法为固体瘤提供了一个有前途的基于机械的疗法.
- 该策略通过准其机械性质,为治疗固体瘤开辟了新的途径.
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