来自蛋黄的低密度脂蛋白:一种潜在的药物输送系统,可以根除细胞内细菌
Yi Zhao1, Bo Liu1, Shuang-Yi Zhang1
1Laboratory of Veterinary Clinical Pharmacology, College of Veterinary Medicine, Inner Mongolia Agricultural University, No. 29, Erdosdong Road, Saihan District, 010011 Hohhot City, China; Key Laboratory of Clinical Diagnosis and Treatment Techniques for Animal Disease, Ministry of Agriculture, Inner Mongolia Agricultural University, No. 29, Erdosdong Road, Saihan District, 010011 Hohhot City, China.
International journal of biological macromolecules
|February 21, 2025
概括
这项研究开发了新的药物输送纳米颗粒,使用蛋黄提取的低密度脂蛋白来封装ceftiofur. 新配方有效地根除了细胞内黄金葡萄球菌,显著提高了受感染小鼠的生存率.
科学领域:
- 纳米医学是一种纳米医学.
- 药物输送系统 药物输送系统
- 抗菌研究 抗菌研究
背景情况:
- 抗生素难以透宿主细胞,限制了对细胞内细菌的有效性.
- 开发有效的细胞内抗菌策略仍然是医学的重大挑战.
研究的目的:
- 创建一种新的药物递送系统,以增强细胞内抗生素的积累.
- 为了改善细胞内细菌的根除,特别是金黄色葡萄球菌.
主要方法:
- 在蛋黄中提取的低密度脂蛋白 (heLDLs) 中封装CEftiofur (CEF) 形成CEF-heLDLs.
- CEF-heLDLs粒子大小,泽塔潜力,药物负载和封装效率的表征.
- 在体外和体内研究评估了CEF-heLDLs对细胞内S. aureus的吸收,分布和抗菌疗效.
主要成果:
- CEF-heLDLs表现出高的药物加载效率 (~44.48%) 和封装率 (~99.31%).
- 与空的heLDL相比,CEF-heLDL显示出增强的稳定性和分散性.
- 在体外和体内实验表明CEF-heLDLs对细胞内黄金色杆菌具有优越的抗菌活性,减少感染小鼠的细菌存活率和死亡率.
结论:
- CEF-heLDLs有效地将ceftiofur输入细胞,克服细胞膜屏障.
- 这种新型纳米载体显著提高了ceftiofur在根除细胞内S. aureus.的有效性.
- CEF-heLDLs代表了一种有前途的治疗方法,用于对抗细胞内细菌感染.
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