基因工程Bacillus subtilis的可行性,用于作为基于微生物的局部药物递送平台
Veronica A Montgomery1, Amy J Wood-Yang2, Mark P Styczynski2
1Wallace H. Coulter Department of Biomedical Engineering at Emory University and Georgia Tech Georgia Institute of Technology Atlanta Georgia USA.
Bioengineering & translational medicine
|July 22, 2024
概括
这项研究表明,工程细菌可以在几天内在皮肤上输送药物,改善局部药物坚持. 细菌细菌 (B. subtilis) 的持久性和安全性在多个模型中得到证实.
科学领域:
- 微生物学 微生物学
- 生物技术是生物技术.
- 皮肤病学 皮肤病学
背景情况:
- 药物不服药是一个重要的医疗保健问题,经常因频繁的局部应用要求而恶化.
- 局部配方的短期停留时间限制了药物的有效性和患者的坚持.
- 开发长效的局部输送系统对于改善治疗结果至关重要.
研究的目的:
- 评估基于微生物组的平台的可行性,用于长效局部药物输送.
- 为了工程 * Bacillus subtilis * (B. subtilis) 持续的药物生产和在皮肤上交付.
- 在临床前模型中评估工程 *B. subtilis* 的安全性和有效性.
主要方法:
- 在皮肤上开发了细菌种群动态的计算模型.
- 使用*ex vivo*猪皮肤和人类皮肤组织培养模型来评估细菌持久性和细胞毒性.
- 采用*in vivo*小鼠模型来评估*B. subtilis*在重复应用时的持续性和安全性.
主要成果:
- 工程 *B. subtilis* 在 *ex vivo* 模型中显示在皮肤上持续数天.
- 观察到 *in vitro* 对人类角质细胞的最小细胞毒性.
- *B. subtilis* 在小鼠皮肤上持续至少1天,每隔一天应用一次,没有明显的安全问题.
结论:
- 工程 * Bacillus subtilis * 是一个可行的平台,用于持续的局部药物输送.
- 这种基于微生物组的方法有望改善局部治疗中的药物坚持.
- 进一步的发展可能会导致新的,长效的局部疗法.
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