当毒性测定中的传统方法对纳米药物不足时:使用纳米乳液的案例研究
Ines Nikolić1,2, Jelena Đoković2, Dora Mehn3
1Faculty of Science, School of Pharmaceutical Sciences, University of Geneva, Geneva, Switzerland.
Drug delivery and translational research
|January 8, 2025
概括
评估纳米药物需要多种表征方法. 标准的体外毒性测试可能会给纳米乳液带来误导性的结果,强调需要测试特定的对照和正交验证.
科学领域:
- 纳米医学是一种纳米医学.
- 配方科学科学 配方科学
- 生物技术是生物技术.
背景情况:
- 亲肠道纳米乳液是有前途的药物输送系统.
- 目前的表征方法可能对纳米药物不够.
- 了解关键质量属性对于纳米医学开发至关重要.
研究的目的:
- 评估亲肠道纳米乳液的关键质量属性.
- 为了将物理化学性质与体外性能联系起来.
- 对纳米药物的常规表征方法的适用性进行评估.
主要方法:
- 使用动态光散射 (DLS),电子显微镜和分析超离心法进行物理化学表征.
- 在实验室中使用WST-1 (线粒体活性),乳酸脱酶释放 (LDH测定,膜完整性) 和化 (PI) 染色 (细胞活力) 的毒性评估.
- 对毒性测试的适当化时间的评估.
主要成果:
- 纳米乳液配方的平均直径约为100nm.
- 实验室安全性结论取决于试验.
- WST-1测定表明非PEGylated配方与PEGylated配方相比具有更高的线粒体影响.
- LDH和PI测定显示出良好的相关性,而WST-1结果不同.
结论:
- 简单的表征方法对于纳米药物来说是不够的.
- 选择细胞毒性试验时,应考虑细胞干扰的潜在机制.
- 设计精良的控制是必要的,以防止由于纳米粒子散射导致的错误毒性结果.
- 标准化,正交的物理化学和生物分析对于可靠的纳米医学临床前表征至关重要.
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