核心外磁性纳米载体:Fe3O4-Hydroxyapatite/Polysuccinimide杂交物质,可增强Fluorouracil口服生物可用性
Wenhui Zhang1, Qiang Wang2, Fengguo Zhai1
1School of Pharmacy, Mudanjiang Medical University, Mudanjiang, 157011, People's Republic of China.
International journal of nanomedicine
|March 25, 2025
概括
这项研究开发了一种新的磁纳米粒子系统,用于使用化 (5-FU) 向肝癌治疗. 磁性纳米颗粒证明了药物在肝脏组织中的传递和保留的改善,有效地抑制了癌细胞的增殖.
科学领域:
- 生物材料科学 生物材料科学
- 纳米技术 纳米技术
- 在瘤学瘤学.
背景情况:
- 肝癌是一个重大的治疗挑战.
- 有效的药物输送系统对于改善治疗结果至关重要.
- 有针对性的治疗可以最大限度地降低全身毒性,提高治疗效果.
研究的目的:
- 开发和表征一个响应pH的磁性核心外纳米平台,用于甲 (5-FU) 针对性地在肝癌中输送.
- 评估开发的纳米载体系统的体外和体内性能.
主要方法:
- 合成和描述磁性Fe3O4-hydroxyapatite (Fe/HAP) 和聚苏胺 (PSI) 核心外纳米粒子.
- 使用Box-Behnken设计优化纳米粒子配方.
- 物理化学性质的评估,包括形态,颗粒大小,泽塔潜力,磁性响应和pH依赖的药物释放.
- 在体内追踪纳米粒子分布,使用小动物成像和在体内评估对Huh-7肝癌细胞的抗癌作用.
主要成果:
- 均的球形纳米粒子已经成功制造出来.
- 磁纳米颗粒表现出具有偏磁性和负表面电荷的特性.
- 药物释放取决于pH值,随着pH值的增加而增加.
- 与非磁性配方相比,磁性配方显示肝脏组织分布,保留和Huh-7细胞增殖的优异抑制.
结论:
- 一个使用PSI和Fe/HAP的新型磁性准纳米传递系统成功开发.
- 该系统提供了统一的颗粒大小,简单的制备过程,以及针对药物输送的成本效益.
- 这种纳米平台适用于向肝脏的药物输送,并有可能用于其他抗瘤药物输送应用.
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