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修改含银的可生物降解聚合物纳米粒子与细菌膜囊泡,用于治疗细胞内细菌感染

Wei Xu¹, Sayo Maruyama¹, Takuro Niidome^1,2

¹Faculty of Advanced Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, Japan.

Materials (Basel, Switzerland)

|August 14, 2025

概括

研究人员开发了新型的银纳米颗粒,涂上细菌膜囊泡,以向和消除巨细胞内的细胞内沙门氏菌Typhimurium,为治疗持久性细菌感染提供了一种新策略.

科学领域:

纳米技术纳米技术
微生物学微生物学
传染性疾病传染性疾病

背景情况:

沙门氏菌 (Salmonella enterica serovar Typhimurium,S. Typhimurium) 是一种细胞内病原体,会引起食物传播疾病.
S. Typhimurium在巨细胞中生存和复制,这构成了治疗挑战.

研究的目的:

设计和评估与S. Typhimurium膜囊泡 (MVs) 功能化的含银纳米粒子,以增强细胞内细菌向.

主要方法:

银纳米粒子 (Ag NPs) 被封装在可生物降解的多聚乳-合-甘油) 纳米粒子 (Ag-P NPs) 中.
Ag-P NP被表面修改并与S. Typhimurium MVs合并,以创建Ag-PP@MV NP.
评估了Ag-PP@MV NP对细胞内S. Typhimurium的疗效.

主要成果:

这些MV涂层的纳米颗粒 (Ag-PP@MV NPs) 显示出与原生MVs相似的蛋白质配置.
这些纳米粒子对细胞内S. Typhimurium表现出显著的抗菌活性.
增强MV修饰的NP的细胞吸收改善了它们在巨细胞内的杀菌效果.

结论:

用细菌膜囊泡进行表面修饰是改善纳米粒子向巨细胞传递的有希望的策略.
这种方法增强了纳米颗粒治疗持续性细胞内细菌感染 (如沙门氏菌) 的治疗潜力.

关键词:

细胞内细菌是细胞内细菌.巨细胞是一个巨细胞.膜囊泡中的膜泡.银纳米颗粒的使用方法

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