脂质纳米颗粒的内部纳米结构影响它们的各种细胞吸收途径
Sue Lyn Yap1, Brendan Dyett1, Alison J Hobro2
1School of Science, STEM College, RMIT University, Melbourne, Victoria, 3000, Australia.
Small (Weinheim an der Bergstrasse, Germany)
|May 20, 2025
概括
具有非叶片结构的热液晶纳米粒子 (LLCNPs),如立方体,增强细胞吸收. 这些脂质纳米颗粒通过使用非内细胞通路来改善药物输送,绕过了典型的挑战.
科学领域:
- 纳米技术纳米技术
- 材料科学 材料科学 材料科学
- 生物医学工程 生物医学工程
背景情况:
- 脂质纳米颗粒 (LNP) 对于药物输送至关重要,如COVID-19疫苗中所见.
- 了解LNP生物相互作用对于推进纳米医学至关重要.
- 热液晶纳米粒子 (LLCNPs) 作为纳米载体具有独特的潜力.
研究的目的:
- 研究LLCNP的内部纳米结构如何影响细胞吸收途径.
- 为了区分中相对细胞内化机制的影响.
- 建立一个结构-财产关系,以优化基于LLCNP的药物输送.
主要方法:
- 合成了具有明显内部结构的LLCNP (脂质体,立方体,六合体,状立方体).
- 粒子大小,电荷和表面涂层被标准化以隔离中相效应.
- 用先进的显微镜和生物化学分析分析了细胞吸收途径.
主要成果:
- 与状脂质体相比,非状LLCNP,特别是立方体,显示细胞吸收显著增强.
- LLCNP主要使用被动的,非内细胞通路,如膜融合.
- 马克罗皮诺细胞瘤被确定为非叶片性LLCNP的主要活性内细胞路径.
结论:
- 在LLCNP内部纳米结构 (mesophase) 和细胞内部化机制之间存在直接的相关性.
- 中相设计对于优化纳米载体性能和克服细胞内运输障碍至关重要.
- 这项研究使LLCNP的理性工程能够实现有针对性的交付和增强的治疗疗效.
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