用于普雷加巴林的乳酸改性PLGA纳米颗粒:开发,表征,体外向和药理动力学评估
Garima Rai1, Pammi Gauba1, Amit Tyagi2
1Department of Biotechnology, Jaypee Institute of Information Technology, Noida, UP, India.
Drug delivery and translational research
|April 8, 2025
概括
这项研究开发了乳二烯修饰的纳米颗粒,用于将普雷加巴林鼻内输送到大脑. 这种新型配方证明了持续的药物释放,增强的细胞吸收,并减少了小鼠的时间,表明大脑向和神经保护的改善.
科学领域:
- 纳米技术在药物输送中的应用
- 神经科学和药理学 神经科学和药理学
- 生物材料科学 生物材料科学
背景情况:
- 鼻内药物输送提供了一条有希望的途径,可以直接向大脑,绕过血脑屏障.
- 开发有效的纳米粒子系统对于提高药物疗效和减少副作用至关重要.
- 需要有针对性的传递系统来改善神经系统疾病的治疗结果.
研究的目的:
- 开发和描述带有Pregabalin的多乳糖合甘油酸 (PLGA) 纳米颗粒,表面修改了乳酸铁素 (Lf),通过鼻内注射增强了对大脑的准.
- 评估Lf-PLGA纳米颗粒的体外药物释放,细胞吸收,细胞毒性和神经保护潜力.
- 评估开发的配方的体内药学动力学效应和脑向效率.
主要方法:
- 用Pregabalin装载的PLGA纳米颗粒通过EDC/NHS化学合成并与乳酸铁素结合.
- 评估了物理化学性质 (颗粒大小,PDI,表面电荷),体外药物释放和细胞毒性.
- 用流式细胞计和共聚焦显微镜评估细胞吸收;用Neuro-2a细胞研究神经保护;用小鼠评估体内药理动力学.
主要成果:
- Lf-PLGA纳米颗粒表现出最佳的物理化学特性 (152.1 nm大小,0.146 PDI,-17.9 mV电荷) 和持续药物释放48小时.
- 该配方表现出良好的生物相容性,在测试的细胞系和鼻腔粘膜上没有观察到细胞毒性.
- 与普通PLGA纳米颗粒相比,改性纳米颗粒显著增强了细胞吸收,减少了氧化生成,并减少了小鼠的时间.
结论:
- 乳二烯修饰的PLGA纳米颗粒代表了可行和有效的策略,用于将普雷加巴林鼻内输送到大脑.
- 增强的细胞吸收和神经保护作用凸显了这种向传递系统在治疗神经疾病方面的潜力.
- 该研究证实了Lf-PLGA纳米颗粒在改善脑药物输送方面的安全性和有效性.
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