在鼻子注射加载固体脂质微粒后,作为针对大脑的前药物,二默酸铁酸合物
Giada Botti1, Anna Bianchi1, Alessandro Dalpiaz1
1Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Ferrara, Italy.
Expert opinion on drug delivery
|November 28, 2023
概括
一种通过鼻腔固体脂质微粒输送的新型铁酸前药物增强了神经退行性疾病治疗的大脑吸收率. 这种非侵入性方法显示,与免费药物相比,大脑脊髓液的停留时间显著延长.
科学领域:
- 神经科学和药理学 神经科学和药理学
- 药物输送系统 药物输送系统
- 生物材料科学 生物材料科学
背景情况:
- 酸 (Fer) 具有抗氧化和抗炎性质,对神经退行性疾病有益.
- 目前的局限性包括中枢神经系统 (CNS) 吸收不足和铁的短期停留时间.
研究的目的:
- 开发一种二元性铁酸原药,优化用于加载到鼻腔固体脂质微粒 (SLMs).
- 为了增强Fer的中枢神经系统透,并延长其潜在的神经退行性疾病治疗的居住时间.
主要方法:
- 一种甲基化二度铁酸原药的合成.
- 使用热乳液技术制备三素或酸SLMs.
- 在实验室评估前药物的释放,抗氧化/抗炎作用,以及通过HPLC在老鼠中的体内药理学研究.
主要成果:
- 前药物在生理环境中有效释放铁,并在体外表现出抗氧化/抗炎活性.
- 乙酸SLMs显示出最佳的前药物加载和溶解,导致鼻服后的高生物可用性.
- 用前期药物加载的SLMs通过鼻子给药导致大脑脊髓液停留时间显著延长 (AUC高达自由铁的30倍),并改善了大脑的吸收,基托进一步增强了基托.
结论:
- 酸前药物载体SLMs的鼻子注射代表了治疗神经退行性疾病的有希望的非侵入性策略.
- 这种方法有效地克服了自由酸的药理动力学限制,改善了其对中枢神经系统疾病的治疗潜力.
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