可点击的纳米酶增强了益生菌的精确殖民,以改善炎症性肠道疾病
Fang Dong1, Liangwen Hao2, Lin Wang1
1Department of Gastroenterology, Pediatric Inflammatory Bowel Disease Research Center, National Children's Medical Center, Children's Hospital of Fudan University, Shanghai 201102, China.
概括
这项研究引入了一种新型纳米酶 (PB@N3),它引导益生菌 (LR@DBCO) 到炎症的肠道区域,显著改善了炎症性肠病 (IBD) 的治疗. 这种有针对性的方法增强了益生菌的殖民化,并减少了炎症.
科学领域:
- 胃肠病学 胃肠病学
- 微生物学 微生物学
- 纳米技术 纳米技术
背景情况:
- 异常的肠道微生物群与炎症性肠病 (IBD) 病原发生有关.
- 目前用于IBD的益生菌疗法面临着低殖民度和目标不佳的挑战.
- 开发针对益生菌的向输送系统对于有效的IBD治疗至关重要.
研究的目的:
- 开发一个时空指导系统,以加强IBD中的益生菌殖民.
- 为了研究亚酸修饰的普鲁士蓝色纳米酶 (PB@N3) 和DBCO修饰的Lactobacillus reuteri (LR@DBCO) 的治疗潜力,用于IBD治疗.
- 评估PB@N3引导LR@DBCO在减轻肠道炎症方面的疗效.
主要方法:
- 开发阿齐多 (N3) 修饰的普鲁士蓝色纳米酶 (PB@N3),用于向炎症和清理活性氧物种 (ROS).
- 使用"点击"化学,在体内和体外对PB@N3与二环氧化物 (DBCO) 修饰的Lactobacillus reuteri DSM 17938 (LR@DBCO) 进行特定和高效的结合.
- 在甲 (DSS) 诱导的大肠炎小鼠模型中对联合治疗的评估.
主要成果:
- "点击"反应证明了对结合PB@N3和LR@DBCO的高特异性和有效性,延长了肠道中的益生菌保留时间.
- 联合PB@N3和LR@DBCO治疗有效地降低了ROS水平,并在DSS诱导的大肠炎模型中减轻了肠道炎症.
- 治疗调节了肠道微生物群组成,改善了免疫特征,并恢复了肠道屏障功能.
结论:
- PB@N3介导的时空指导显著增强了针对IBD治疗的益生菌的向殖民.
- 这种有针对性的益生菌输送策略为缓解肠道炎症提供了一个有希望的治疗方法.
- 开发的纳米酶-益生菌系统为管理炎症性肠病提供了一种新的策略.
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