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代谢调节介导的抗生素和免疫激活,用于治疗慢性肺部感染

Weijun Xiu¹, Heng Dong², Xiaolong Chen¹

¹State Key Laboratory of Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Nanjing University of Posts and Telecommunications, Nanjing210023, China.

|May 28, 2024

概括

这项研究引入了一种新的代谢调节策略,使用超声响应纳米颗粒来对抗由Pseudomonas aeruginosa生物膜引起的慢性肺部感染. 该方法增强了抗菌素敏感性,并调节宿主炎症反应,以改善治疗结果.

科学领域:

生物医学工程生物医学工程
传染性疾病传染性疾病
纳米医学是一种纳米医学.

背景情况:

*在慢性肺部感染中,Pseudomonas aeruginosa生物膜表现出高抗菌耐受性和异常宿主炎症反应.
* 细菌和宿主细胞代谢是影响抗微生物敏感性和免疫反应的关键因素,具有治疗点.

研究的目的:

* 开发和评估一种代谢调节策略,用于治疗与生物膜相关的慢性肺部感染.
* 利用超声响应的脂质体纳米颗粒提供声敏剂和低氧激活前药物.

主要方法:

* 超声响应的脂质体纳米颗粒被设计成封装一个声敏剂和一个低氧激活的前药物.
* 超声波刺激触发了以声敏剂为媒介的反应性氧物种生成和氧气消耗.
*诱导性缺氧激活了无氧细菌代谢以激活前药物和免疫细胞糖解以调节炎症.

主要成果:

* 该策略有效地产生了活性氧物种,并在超声波刺激下诱导了缺氧.
*低氧调节细菌代谢以增强抗生素激活和免疫细胞代谢以激活炎症.
*代谢调节方法在Pseudomonas aeruginosa生物膜诱导的慢性肺部感染的小鼠模型中显示出显著的治疗疗效.

结论:

* 通过脂质体纳米颗粒的超声波触发的代谢调节为生物膜相关的慢性肺部感染提供了一个有前途的治疗策略.
* 这种方法既针对细菌的抗微生物耐受性,也针对宿主的炎症反应.
*开发的纳米医药为对抗具有挑战性的持久性感染提供了一条新的途径.

关键词:

细菌生物膜感染细菌生物膜感染免疫系统是免疫系统的.脂质体纳米颗粒的使用.代谢代谢代谢代谢超声波超声波是指超声波的使用.

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