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Enhanced antibacterial activity of bovine milk exosome-based drug formulation against bacterial pathogens

文献类型: 外文期刊

作者: Xu, Qingjun 1 ; Yang, Shuo 1 ; Zhang, Kai 1 ; Liu, Ying 2 ; Li, Lin 1 ; Qu, Shaoqi 1 ;

作者机构: 1.Anhui Agr Univ, Coll Anim Sci & Technol, Anim Derived Food Safety Innovat Team, Hefei 230036, Peoples R China

2.Beijing Acad Agr & Forestry Sci, Inst Anim Husb & Vet Med, Beijing 100097, Peoples R China

3.Anhui Agr Univ, Joint Res Ctr Food Nutr & Hlth IHM, Hefei 230036, Peoples R China

关键词: Milk exosome; Bacteria; Antibiotics; Flavonoids; Combination therapy

期刊名称:FOOD CHEMISTRY ( 影响因子:8.5; 五年影响因子:8.2 )

ISSN: 0308-8146

年卷期: 2024 年 447 卷

页码:

收录情况: SCI

摘要: Milk is not only a source of nutrients, but also contains exosomes (Exo) that can serve as a vehicle for drug delivery. Here, we obtained bovine milk Exo using three efficient methods, demonstrating high quality for commercial production. The optimized Exo displayed a size of 105.2 nm and an entrapment efficiency of 88.4 %. The Exo has been functionalized with a combination therapy comprising isobavachalcone (IS) and polymyxin B (PB), referred to as IP-Exo. The antibacterial efficacy of IP-Exo was significantly enhanced, enabling the elimination of 99 % of multidrug-resistant (MDR) bacterial pathogens in 4 h. Furthermore, scanning electron microscopy images demonstrated that the drug combination led to the complete dismantling of the bacterial structure. IP-Exo showed nearly 100 % microbial inhibition in fresh orange juice and accelerated wound healing in mouse models. Collectively, IP-Exo provides excellent potential for application within the food industry and animal husbandry as a defense against bacterial pathogens.

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