可远程控制的工程细菌用于针对性治疗Pseudomonas aeruginosa感染
Yanmei Gao1,2, Jingjing Wei3, Lu Pu4
1Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, No. 96, JinZhai Road, Baohe District, Hefei, Anhui 230026, P. R. China.
ACS synthetic biology
|July 7, 2023
概括
研究人员设计了一种细菌菌株,以生产一种专门针对Pseudomonas aeruginosa感染的皮奥辛药物. 近红外光控制药物释放,在小鼠伤口愈合模型中显示出有效性.
科学领域:
- 合成生物学和抗微生物疗法.
- 菌体衍生的蛋白质用于有针对性的杀死细菌.
背景情况:
- Pseudomonas aeruginosa 感染是由于广泛的抗生素耐药性而造成的重大全球健康挑战.
- 目前的抗生素治疗越来越无效,需要新的治疗方法.
研究的目的:
- 开发一种针对Pseudomonas aeruginosa感染的新型治疗策略.
- 为了设计一种能够生产和输送向抗菌剂的细菌菌株.
- 通过近红外光来实现时空和非侵入性控制药物输送.
主要方法:
- 构建一种专门针对P. aeruginosa的仿真皮素 (ChPy).
- 在近红外 (NIR) 光刺激时,设计一种细菌菌株以产生和释放ChPy.
- 在感染P. aeruginosa的小鼠伤口模型中评估工程菌株的疗效.
主要成果:
- 这种工程细菌菌株成功地产生并输送了ChPy来杀死P. aeruginosa.
- 尼尔射线照射使细菌溶解和药物释放能够精确,远程控制.
- 使用工程菌株的治疗在小鼠伤口中消除了PAO1并加速了伤口愈合.
结论:
- 工程细菌为针对性抗微生物药物输送提供了一个有希望的平台.
- 可诱导NIR的细菌溶解提供了一种非侵入性的方法来控制治疗剂的释放.
- 这一策略表明了有效治疗P. aeruginosa伤口感染的潜力.
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