细胞内有针对性的输送直接可视化,使用福斯特共振能量转移 (FRET)
Igor D Zlotnikov1, Natalya G Belogurova1, Elena V Kudryashova1
1Faculty of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 1/3, 119991 Moscow, Russia.
Polymers
|April 28, 2025
概括
一种新的福斯特共振能量转移 (FRET) 试验有效地使用聚合物微粒测量向药物输送. 这种方法可视化药物透到细菌细胞中,优化输送系统以增强抗菌活性.
科学领域:
- 生物技术是生物技术.
- 纳米技术纳米技术
- 药理学 药理学是指药理学的学科.
背景情况:
- 有针对性的药物输送系统对于提高治疗疗效和减少副作用至关重要.
- 聚合物微粒为封装和输送治疗剂提供了一个有前途的平台.
- 开发有效的方法来评估药物输送对于药物研发至关重要.
研究的目的:
- 建立基于Förster共振能量转移 (FRET) 的实时测定方法,以评估使用聚合物微粒的向药物输送.
- 通过测量封装药物和记者蛋白之间的FRET效率来量化药物递送效率.
- 评估细胞组成对药物负载,输送效率和抗菌活性的影响.
主要方法:
- 使用红色光蛋白 (RFP) -表达大肠杆菌作为测试系统.
- 封装的光药物 (库尔库明,贝利费龙) 在聚合物微粒 (基于肝素,基酸盐).
- 使用FRET效率和Petri盘上的可视化细菌光的量化药物递送效率.
主要成果:
- 与免费药物相比,聚合物微粒显著提高了封装药物的输送和FRET效率.
- 细胞组成影响了药物聚合物相互作用,氨酸基细胞对MUmb.mb表现出更强的亲和力.
- 含有黄素的菌体显示RFP光度大幅增加,这表明有效的输送和相互作用.
- 微粒配方表现出对大肠杆菌的增强抗菌活性,Hep-OA微粒显示出活力最显著的降低.
- 当结合细胞药物与莫西素时,观察到协同效应.
结论:
- 开发的FRET试验为评估向药物输送系统提供了一个通用和准确的平台.
- 聚合物微粒成分对药物负载,输送效率和治疗结果产生重大影响.
- 这种方法促进了药物输送系统的优化,以提高抗菌疗效和在治疗细胞内感染方面的潜在应用.
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