基于仿生细胞膜涂层技术的纳米药物输送系统:制备,表征和评估
Yuqin Zhou1,2, Shihan Du1, Kailun He2
1School of Pharmacy, China Pharmaceutical University, No. 639, Longmian Avenue, Nanjing 211198, China.
Pharmaceuticals (Basel, Switzerland)
|August 28, 2025
概括
一个新的仿生纳米粒子系统有效地提供达普素 (DAP) 来对抗抗药性黄金葡萄球菌感染. 这种纳米药物可以增强免疫逃逸和抗菌性能,
科学领域:
- 生物材料科学
- 纳米技术
- 传染性疾病
背景情况:
- 黄金葡萄球菌 (S. aureus) 感染由于多种药物耐药性而构成重大威胁.
- 达普托米辛 (DAP) 对于治疗耐药性格拉姆阳性细菌感染至关重要,但它面临着短半衰期和新出现的耐药性等限制.
- 开发先进的药物输送系统对于提高DAP的有效性和克服临床挑战至关重要.
研究的目的:
- 设计一种生物模拟纳米药物输送系统,用于达普素 (DAP).
- 改善DAP的向性,延长血液循环,并减轻细菌耐药性.
- 为克服达普的临床局限性而制定新战略.
主要方法:
- 通过静电自组装制造了带有达普素的素纳米复合物颗粒 (DAP-CS).
- 将巨细胞膜囊泡 (MM) 准备好并与DMPC融合.
- 通过共挤出构建了一个仿生系统 (DAP-CS@MM),其物理化学性质的特征,并在体外和体内进行了评估.
主要成果:
- DAP-CS@MM纳米粒子的测量值为110.9 ± 13.72 nm,其泽塔电位为+11.90 ± 1.90 mV,封装效率为70.43 ± 1.29%.
- DAP-CS@MM保留了功能性巨细胞膜蛋白,包括TLR2受体,显示出增强的免疫逃逸.
- 与DAP和DAP- CS相比,体内研究显示DAP- CS@MM对黄金葡萄球菌的抗菌功效更强.
结论:
- 生物模拟DAP-CS@MM纳米药物输送系统显示出显著的免疫逃避能力.
- 这种新型系统表现出增强的抗菌性能,有效地克服了达普素耐药性.
- DAP-CS@MM提供了一种有前途的治疗策略,用于应对具有挑战性的黄金菌感染.
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