工程化益生菌通过恢复肠道微生物群和氧化还原平衡来改善性结肠炎
Peilin Guo1, Wenjing Wang2, Qian Xiang3
1State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P.R. China; Key Laboratory of Biopharmaceutical Preparation and Delivery, Chinese Academy of Sciences, Beijing 100190, P.R. China; School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, P.R. China.
这项研究引入了一种新的益生菌疗法,结合了Lactobacillus casei和点来治疗性结肠炎 (UC). 治疗有效地减少炎症和结肠损伤,通过恢复肠道健康和打击氧化应激.
科学领域:
- 胃肠病学 胃肠病学
- 微生物组研究的研究.
- 纳米技术 纳米技术
背景情况:
- 性结肠炎 (UC) 患者表现出减少的乳酸菌和增加的氧化应激,与炎症相关.
- 目前针对UC的益生菌疗法面临挑战,原因是胃肠道的粘附和活性有限.
研究的目的:
- 开发一种用于性结肠炎 (UC) 的新型益生菌疗法,可以增强微生物的粘附和活性.
- 研究Lactobacillus casei和纳米颗粒在改善UC相关炎症和氧化应激方面的协同效应.
主要方法:
- 利用机器学习和生物信息学分析UC患者数据,识别微生物和氧化应激标志物.
- 经过工程设计的 Lactobacillus casei (Lac) 具有细胞周膜,用于点 (Se-Lac) 结晶,增强稳定性和有效性.
- 在小鼠模型和非人类灵长类动物中评估治疗效果,评估炎症,结肠损伤和肠道微生物群.
主要成果:
- 在UC患者中确认了乳杆菌患病率的降低和氧化应激增加,与炎症严重程度相关.
- 开发了Se-Lac,表现出增强的胃酸耐药性和粘粘性.
- 在临床前模型中显示出明显减少炎症和结肠损伤.
结论:
- 新的Se-Lac益生菌疗法有效地恢复了肠道的氧化还原和微生物群的平衡.
- 这种协同方法在治疗性结肠炎方面显著有前途.
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