对GSH/pH敏感的Förster共振能量转移纳米粒子用于协同化学疗法和化学动力疗法
Xiaodong Zheng1, Yingjian Cui1, Jianxin Rong1
1Institute of Polymer Science and Engineering, School of Chemical Engineering, Hebei University of Technology, Tianjin 300130, China. xwqu@hebut.edu.cn.
Journal of materials chemistry. B
|March 27, 2025
概括
研究人员开发了对谷氨敏感的聚合物,用于药物输送. 这些聚合物封装药物并有效地释放它们,在细胞实验中显示出强大的瘤杀伤能力.
科学领域:
- 生物材料科学 生物材料科学
- 聚合物化学 聚合物化学
- 纳米技术纳米技术
背景情况:
- 响应刺激的聚合物是先进药物输送系统的关键.
- 灵敏的聚合物提供有针对性的药物释放机制.
研究的目的:
- 为了合成一种新型的对谷氨敏感的聚合物用于药物输送.
- 为协同化学动力学疗法和化疗创造纳米粒子.
- 为了使药物通过光释放的可视化.
主要方法:
- 脂酸和含有四烯 (TPE) 的单体的可逆添加-碎片化链转移聚合.
- 合成聚二硫化块以控制降解.
- 将Fe3+和多克索鲁比辛 (DOX) 纳入纳米粒子 (DOX@Fe NP).
- 使用聚合诱导发射 (AIE) 和弗斯特共振能量转移 (FRET) 进行可视化.
主要成果:
- DOX@Fe NPs证明了有效的药物加载和受控释放 (79.2%的DOX释放在12小时内在pH 5.5和5mMGSH).
- 在48小时后,在4T1细胞中观察到显著的瘤杀伤能力,仅有2.5%的活力.
- FRET启用了对DOX发布的实时可视化.
结论:
- 合成的聚合物有效地形成纳米粒子,用于联合化学动力学疗法和化疗.
- DOX@Fe NP对谷氨和pH的反应非常好,导致强大的抗瘤作用.
- 开发的系统提供了一个有前途的平台,用于针对性癌症治疗,内置监测功能.
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