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通过将单个菌体感染的细菌涂上聚合物来增强菌体治疗,以保持菌体活力

Sisi Lin¹, Guocheng Xie¹, Jun He²

¹State Key Laboratory of Systems Medicine for Cancer, Shanghai Cancer Institute, Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Institute of Molecular Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.

Nature biomedical engineering

|February 25, 2025

概括

研究人员开发了一种新的方法来保护菌体,这对于治疗细菌感染至关重要. 这种技术增强了菌体活力和治疗效果,为对抗感染和生物膜提供了有前途的新方法.

科学领域:

微生物学微生物学
生物技术是生物技术.
材料科学材料科学材料科学

背景情况:

菌体 (菌体) 疗法是抗生素治疗细菌感染的有希望的替代方案.
菌体活力对于治疗疗效至关重要,但在隔离和制造过程中经常受到损害.
目前释放菌体的方法可能导致基本菌体成分的降解,降低其有效性.

研究的目的:

开发一种方法,在与宿主细菌隔离期间保持菌体活力.
评估这些受保护的菌体在体外和体内增强的疗效.
改善菌体治疗的生物可用性和治疗结果.

主要方法:

菌体入侵的细菌被单独封装在纳米级的聚合物涂层中.
这种涂层在菌体诱导的细菌溶解过程中保留了微环境.
评估了释放的菌体的活力,放大,结合和化活性.
在细菌性肠炎和关节炎的小鼠模型中评估了治疗疗效.

主要成果:

与自然释放的菌体相比,从聚合物涂层细菌中分离出来的菌体表现出维持活力和完整的尾部蛋白质.
潜菌体表现出改善的放大和更有效的细菌结合和溶解,特别是在生物膜中.
在小鼠中,口服的聚合物涂层细菌释放菌体导致了更高的生物可用性和更优异的治疗结果.

结论:

纳米级聚合物封装是一种有效的策略,可以保护菌体的活力并增强其治疗潜力.
这种方法克服了与自然菌体释放相关的局限性,提高了对细菌感染和生物膜的疗效.
受到保护的菌体为细菌性疾病提供了更具生物可用性和有效的治疗选择.

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