特定于免疫细胞受体的纳米颗粒作为鼻分流感疫苗输送的强有力的辅助剂
Xuemei Li1, Xueliang Xiu1, Rui Su1
1Laboratory of Biologics and Biomaterials, College of Pharmacy, Zhejiang University of Technology, Deqing 313216, People's Republic of China.
Nanotechnology
|December 15, 2023
概括
修改了曼诺斯的纳米颗粒克服了粘液障碍,有效地进行了鼻腔内接种疫苗. 这种新的方法增强了免疫细胞的向和吸收,改善了子单位疫苗的粘膜和全身免疫力.
科学领域:
- 生物材料科学 生物材料科学
- 疫苗学 疫苗学 疫苗学
- 纳米技术纳米技术
背景情况:
- 粘膜疫苗对免疫至关重要,但面临着诸如粘液屏障和抗原吸收不良等挑战,特别是在亚单元疫苗中.
- 现有的粘膜输送系统难以有效地向免疫细胞输送非致病性抗原.
- 开发有效的输送工具对于增强粘膜疫苗免疫性至关重要.
研究的目的:
- 开发和表征曼诺斯修饰的多 (乳酸-co-甘酸-聚乙烯甘) 纳米粒子 (PLGA-PEG-Man NP) 用于粘膜抗原的输送.
- 评估PLGA-PEG-Man NPs的物理化学特性,粘液透性,免疫细胞向性和安全性.
- 评估PLGA-PEG-ManNP在小鼠模型中鼻注射分裂流感疫苗的疗效.
主要方法:
- 用曼诺斯 (PLGA-PEG-Man) 修饰的聚 (乳酸-协同甘油酸-聚乙烯甘醇) (PLGA-PEG) 的合成和表征.
- 制备和描述PLGA-PEG-Man纳米粒子 (NP),包括粒子大小,泽塔潜力,粘液透性和体外毒性.
- 在大鼠的PLGA-PEG-ManNP中装载的分裂流感疫苗的鼻内注射,以评估系统和粘膜免疫反应.
主要成果:
- 新的PLGA-PEG-ManNP已经成功合成了具有最佳粒子大小 (~150nm) 和泽塔电位 (-15mV) 的NP.
- 开发的纳米粒子表现出极好的粘液透性,免疫细胞向性,稳定性和低毒性.
- 在大鼠中,使用PLGA-PEG-Man NP的分裂流感疫苗的鼻内注射诱导了显著的全身和粘膜免疫反应.
结论:
- PLGA-PEG-Man NP代表了一种有前途的纳米材料,可以克服粘膜疫苗输送方面的挑战.
- 这些纳米粒子有效地促进非致病性抗原的传递,增强粘膜和全身免疫力.
- PLGA-PEG-Man NP显示出作为下一代粘膜疫苗的有效纳米辅助剂的潜力.
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