用一块石头杀死两只小鸟的策略,以阻止药物耐药性与工程Bdellovibrio bacteriovorus传播
Yu Rao1, Yuxuan Wang1, Hengyuan Zhang1
1Jiangsu Engineering Laboratory of Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Negative Carbon Technologies, Suzhou Key Laboratory of Soft Material and New Energy, Key Laboratory of Polymeric Materials Design and Synthesis for Biomedical Function, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China.
Advanced materials (Deerfield Beach, Fla.)
|August 14, 2024
概括
一个新的生命系统,Ce-PEA@Bdello,有效地消除了耐药细菌及其基因. 这种方法阻止了抗菌素耐药性的传播,并促进了伤口的愈合.
科学领域:
- 生物材料科学 生物材料科学
- 抗微生物耐药性研究研究
- 合成生物学 合成生物学
背景情况:
- 耐药性病原体对全球健康构成重大威胁.
- 现有的治疗方法难以消除死细菌释放的耐药基因 (DRGs),从而促进进一步的耐药性传播.
- 需要新的策略来对抗细菌及其可转移的遗传物质.
研究的目的:
- 开发一种能够同时杀死耐药细菌和降低它们释放的耐药基因 (DRGs) 的活体系统.
- 研究工程Bdellovibrio bacteriovorus (Bdello) 阻断抗菌素耐药性传播的疗效.
- 评估该系统在治疗受感染的伤口和促进愈合方面的潜力.
主要方法:
- 通过使用多巴胺和多核 (IV) 复合体的工程Bdellovibrio bacteriovorus (Bdello) 来制造Ce-PEA@Bdello.
- 在近红外光下利用Bdello和光热聚多巴胺的捕食性来消除抗卡纳米辛的P. aeruginosa (KanR) 生物膜.
- 评估Ce-PEA@Bdello对基因组和等离子体DNA裂变的DNase模拟能力.
主要成果:
- Ce-PEA@Bdello证明了协同杀死细菌和消除KanR P. aeruginosa.生物膜的协同作用.
- 该工程系统有效地切割了包括DRG在内的基因组和等离子体DNA.
- 在体内研究表明,Ce-PEA@Bdello在受感染的伤口中消除了细菌和降解了DRG,加速了愈合.
结论:
- Ce-PEA@Bdello系统提供了一种双重行动的方法来打击耐药细菌并防止耐药性传播.
- 这种生物材料系统在治疗感染和控制抗菌素耐药性方面表现有前途.
- 工程自然生物材料为应对抗生素耐药性的挑战提供了一个新的平台.
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