工程酸盐生产的Lachnospiraceae用于治疗代谢性疾病
bioRxiv : the preprint server for biology
|November 24, 2025
概括
研究人员设计了肠道细菌,Lachnospiraceae,以提供治疗性介质素-22 (IL-22). 这种工程微生物改善了新陈代谢健康,并减少了小鼠的肝脏脂肪,为新的微生物组疗法铺平了道路.
科学领域:
- 微生物组工程 微生物组工程
- 合成生物学 合成生物学
- 肠道微生物组治疗方法 治疗方法
背景情况:
- 拉克诺斯皮拉属是一种丰富的肠道细菌,具有与健康相关的代谢功能.
- 拉克诺斯皮拉属植物的基因工程具有挑战性,限制了它们的治疗潜力.
- 开发用于Lachnospiraceae工程的工具对于基于微生物组的疗法至关重要.
研究的目的:
- 开发一个模块化的基因工程工具包Lachnospiraceae.
- 为了设计共生细菌 *Coprococcus comes* 进行治疗性蛋白质分泌.
- 评估工程 *C. comes* 在代谢疾病的小鼠模型中的治疗潜力.
主要方法:
- 在Lachnospiraceae中开发了构成性和诱导性基因表达和染色体集成的工具包.
- 工程 *Coprococcus com* 分泌介质素-22 (IL-22).
- 向具有代谢相关脂肪性肝病的小鼠给予IL-22分泌*C. comes*.
主要成果:
- 成功设计了C. comes用于小鼠肠道中的IL-22分泌.
- 演示IL-22分泌物调节宿主基因表达在骨髓中.
- 在接受治疗的小鼠中观察到改善的葡萄糖稳定性和减少的肝肥胖症.
结论:
- 一个模块化工具包使得本地Lachnospiraceae的遗传编程成为可能.
- 工程 *C. comes* 分泌IL-22可以调节宿主代谢和免疫生理学.
- 这种方法为基于Lachnospiraceae的微生物组治疗提供了基础.
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