工程脂涂的纳米颗粒作为TLR4主激素MPLA的多功能辅助剂输送平台
Andreas G Schreiber1, Johannes Konrad1, Renate Liebl1
1Department of Pharmaceutical Technology, University of Regensburg, Universitaetsstrasse 31, 93053 Regensburg, Germany.
International journal of pharmaceutics
|February 7, 2026
概括
脂质涂层的二氧化纳米颗粒有效地提供托尔类受体4激动剂. 贝叶斯优化显著增强了它们的免疫刺激活性,显示出它们作为模块化疫苗载体的潜力.
科学领域:
- 纳米技术 纳米技术
- 材料科学 材料科学 材料科学
- 免疫学 免疫学 免疫学
背景情况:
- 脂质涂层的二氧化纳米粒子 (LC-SiNPs和LC-MSNs) 提供了一个模块化平台,用于输送托尔类受体 (TLR) 激动剂.
- 优化将单脂A (MPLA) 作为TLR4激动剂纳入这些纳米颗粒的脂质双层,对于提高它们的有效性至关重要.
研究的目的:
- 系统地优化脂涂化纳米颗粒的配方,以增强TLR4激动剂MPLA的传递.
- 研究胆固醇和离子脂质 (DPPG) 含量对纳米粒子特性和TLR4激活的影响.
- 为了比较贝叶斯优化 (BO) 与传统配方方法的性能.
主要方法:
- 开发脂质涂层的固体和半孔纳米颗粒 (LC-SiNPs和LC-MSNs).
- 系统地改变胆固醇 (15-45%) 和DPPG (10-30%) 含量以优化MPLA的纳入.
- 贝叶斯优化 (BO) 的应用,用于改进纳米粒子配方.
- 使用巨细胞评估免疫刺激活性,膜流动性和粒子-细胞相互作用.
主要成果:
- 固核MPLA-SiNP含有45%的胆固醇和20%的DPPG显示了增强的免疫刺激活性.
- 半孔MPLA-MSNs需要30%的DPPG进行可比激活.
- 与经典方法和未配制的MPLA相比,BO优化的MPLA-SiNP实现了显著较低的EC50 (87 ng/mL).
- 巨细胞有效地内化并处理了优化的纳米粒子.
结论:
- 合理的配方设计对于优化脂涂二氧化纳米粒子的性能至关重要.
- 贝叶斯优化显著提高MPLA载纳米粒子的免疫刺激潜力.
- 这些纳米颗粒代表了疫苗输送的有希望的模块化平台,可适应其他TLR激动剂和抗原.
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