针对性地生产高水平的 chuangxinmycin 和其具有抗结核活性的化衍生物
Xiongfang Zhao1, Yuan Lu1, Xintong Zhang1
1CAMS Key Laboratory of Synthetic Biology for Drug Innovation, NHC Key Laboratory of Biotechnology for Microbial Drugs and State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China.
Microbial cell factories
|May 19, 2025
概括
研究人员使用合成生物学增强了抗生素Chuangxinmycin (CM) 和其衍生物Norchuangxinmycin (NCM) 的生产. 这一突破使得开发新的抗结核药物成为可能,因为它提供了高产量和新型化CM衍生物.
科学领域:
- 合成生物学 合成生物学
- 自然产品的生物合成.
- 发现抗微生物药物发现.
背景情况:
- 楚安辛米 (CM) 是一种强效的抗结核抗生素,具有独特的二三皮[4,3,2-cd]道基架.
- 诺楚安辛米 (NCM),CM的同源,通过超越托-tRNA合成酶抑制的新机制表现出抗结核活性.
- 低生产率和有限的结构类似物阻碍了基于CM的抗结核药物的开发.
研究的目的:
- 通过合成生物学方法增强Chuangxinmycin (CM) 和Norchuangxinmycin (NCM) 的生产.
- 通过前体指导生物合成产生新型CM衍生物.
- 为开发新的抗结核候选药物提供基础.
主要方法:
- 在CM生物合成途径的解.
- 异质表达,激活器过度表达和促进器优化.
- 发酵介质选和前体导向生物合成用于衍生品生成.
主要成果:
- 实现了创纪录的产量:CM的301 mg/L (20.1 倍增长) 和NCM的117.6 mg/L (13.7 倍增长).
- 合成了11种新的化CM衍生物,其中6种经过净化和结构确认.
- 鉴定了5-F-CM和7-F-NCM对M.结核病H37Rv和耐药临床分离物的强烈抗结核活性.
结论:
- 合成生物学有效地实现了针对性,高水平的CM及其衍生物的生物合成.
- 这项研究报告了迄今为止CM和NCM的最高实验室产量.
- 生物合成CM衍生物,包括新型化NCM,为抗结核病药物开发提供了一个有前途的途径.
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