探索微观结构和脂类型脂质体对它们与肺的相互作用的影响
Jing Zhao1, Ye Yuan1, Jingwen Xue1
1School of Pharmacy, Shenyang Key Laboratory of Intelligent Mucosal Drug Delivery Systems, Shenyang Pharmaceutical University, Shenyang 110016, China.
概括
微米大小的脂质体,包括多状脂质体 (MLL) 和多状脂质体 (MVL),对肺部药物输送有希望. 脂成分显著影响它们的肺相互作用,大豆酸胆 (SPC) 显示出比双基酸胆 (DPPC) 更好的结果.
科学领域:
- 纳米医学和制药科学 纳米医学和制药科学
- 肺部药物输送系统 肺部药物输送系统
- 生物材料和药物载体 生物材料和药物载体
背景情况:
- 纳米大小的脂质体是为肺部药物输送而建立的,但微米大小的脂质体为肺部疾病提供了优越的药物载荷和持续释放潜力.
- 关于微米大小的脂质体,特别是多状脂质体 (MLL) 和多状脂质体 (MVL) 的肺相互作用的知识有限.
研究的目的:
- 研究微粒大小的脂质体的微观结构 (MLL与MVL) 和脂成分如何影响它们与肺的相互作用.
- 为了评估不同微米大小的脂质体的体外肺细胞吸收,体内肺部保留和器官分布.
主要方法:
- 使用大豆酸盐胆 (SPC),蛋黄酸盐胆 (EPC) 和双基酸盐胆 (DPPC) 制备微米大小的脂质体 (MLL和MVL,约5μm).
- 在NR8383和A549肺细胞系中体外细胞吸收的评估.
- 在72小时内对体内肺部保留和器官分布的评估.
主要成果:
- 脂质体微观结构 (MLL vs. MVL) 并没有显著影响肺细胞吸收,肺保留或器官分布.
- 在72小时内,MLL和MVL都表现出长时间的肺保留和有限的分布到其他器官.
- 脂类型显著影响了脂质体-肺相互作用;与DPPC基脂质体相比,基于SPC的脂质体显示出更高的细胞吸收和更好的肺保留.
结论:
- 微粒大小的脂质体,无论微观结构如何,都提供持续的肺保留和有限的系统分布,使它们适合用于肺药物输送.
- 脂成分是优化微米大小的脂质体性能为肺部输送的关键因素,基于SPC的配方特别有前途.
- 这项研究为微米大小的脂质体的合理设计提供了宝贵的理论见解,用于增强肺部输送应用.
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