开发基于热敏粘膜凝的封装脂质微球,作为鼻至大脑里瓦斯蒂格明输送系统
Nurafni Annisa Achmad1, Rachmatya W Tuna1, Irfan Kurniawan1
1Faculty of Pharmacy, Hasanuddin University, Makassar 90245, South Sulawesi, Indonesia.
Langmuir : the ACS journal of surfaces and colloids
|December 23, 2024
概括
这项研究开发了一种新的药物输送系统,用于治疗阿尔茨海默氏症 (ALZ) 的里瓦斯蒂格明 (RVT). 热敏粘膜凝和脂质微球组合显著改善了RVT脑度,提供了一个有前途的新阿尔茨海默氏症治疗方法.
科学领域:
- 神经科学是一个神经科学.
- 药品制造 药品制造 药品制造
- 生物材料是一种生物材料.
背景情况:
- 阿尔茨海默病 (ALZ) 涉及神经退行和认知能力下降.
- 目前的治疗方法,如利瓦斯蒂格明 (RVT) 面临挑战,包括低口服生物利用率,第一通代谢和血脑屏障 (BBB).
- 现有的服药途径,如口服和透皮,在达到有效的脑度方面存在局限性,并可能导致系统性副作用.
研究的目的:
- 开发和评估一种结合热敏粘膜凝 (TG) 和脂质微球 (LM) 的新型药物输送系统,以增强里瓦斯蒂格明 (RVT) 输送到大脑.
- 为了克服传统RVT用于阿尔茨海默病治疗的治疗途径的局限性.
- 通过增加RVT在大脑中的度和最大限度地减少系统性副作用来提高治疗疗效.
主要方法:
- 脂质微球 (LM) 的配方,含有不同度的Compritol聚合物.
- 用颗粒大小,PDI,%EE和%DL来描述LM.
- 开发一种热敏粘膜凝 (TG),在生理温度下从液体转化为凝.
- 使用血液溶解和HET-CAM测试评估TG RVT LM安全性.
- 与口服和注射配方相比,评估药物释放动力学 (ex vivo) 和大脑中的药物动力学 (in vivo) 概况.
主要成果:
- 脂质微球表现出有利的特征:颗粒大小为8.519微米,PDI为0.018±0.004,EE%为72.54%,DL%为76.43%.
- 该TG配方表现出热敏性行为,在室温下保持液态,在鼻腔温度下凝结.
- 安全评估证实了TG RVT LM系统的无毒性.
- 活体研究显示RVT的受控和持续释放.
- 在体内研究显示,与口服和注射途径相比,TG RVT LM在大脑中的药理动力学概况显著更高,Cmax为7.05 ± 0.55 μg/cm3,Tmax为24小时,AUC0-24为225.73 μg/cm3.
结论:
- 热敏粘膜凝与脂质微球 (TG RVT LM) 结合的成功开发增强了对大脑的 Rivastigmine 输送.
- 与传统的口服和注射配方相比,这种新的系统可以达到更高的RVT脑度.
- TG RVT LM药物输送系统显示出作为阿尔茨海默病未来有效治疗策略的巨大潜力.
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