可触发ROS的双纳米涂层益生菌用于炎症性肠病治疗
Guangze Sang1, Sizhen Wang1, Qiwei Tai1
1School of Pharmacy, Naval Medical University, Shanghai, People's Republic of China.
Drug delivery
|February 14, 2026
概括
这项研究开发了一种用于治疗炎症性肠病 (IBD) 的益生菌的新型纳米涂层. 涂层增强了益生菌的稳定性,并向肠道输送抗炎 катехин,改善治疗结果.
科学领域:
- 胃肠道学和免疫学
- 生物材料科学 生物材料科学
- 药物输送系统 药物输送系统
背景情况:
- 炎症性肠病 (IBD) 由于不清楚的致病机制和高复发率,存在重大治疗挑战.
- 目前用于IBD的益生菌疗法面临着诸如消化系统稳定性差和有效性可变等局限性.
- 凯素是天然的黄类化合物,具有抗炎和抗氧化特性,有利于IBD管理.
研究的目的:
- 开发一种新的双功能纳米传递系统,用于益生菌和儿茶素,以增强IBD治疗.
- 改善益生菌在胃肠道中的稳定性,并使向药物在炎症部位释放.
- 在性结肠炎小鼠模型中研究益生菌和儿茶素的联合治疗潜力.
主要方法:
- katekins 通过酸与乙烯基醇基托结合,形成益生菌的纳米涂层,用酸稳定.
- 设计了一种双层纳米涂层系统,以保护消化过程中的益生菌,并响应炎症部位的活性氧物种 (ROS).
- 双层纳米涂层益生菌的有效性在硫酸 (DSS) 诱导的性结肠炎小鼠模型中进行了评估.
主要成果:
- 纳米涂层在恶劣的消化环境中显著提高了益生菌的稳定性.
- 该系统展示了ROS触发的在炎症部位释放catechins和益生菌.
- 结合疗法在性结肠炎小鼠模型中显示出治疗效果,调节微生物群并减少炎症.
- 该方法成功地将向药物输送与生物疗法相结合,以改善IBD治疗.
结论:
- 开发的双层纳米涂层系统为增强益生菌稳定性和IBD治疗效果提供了一个有前途的策略.
- 这种创新方法结合了益生菌和catechin抗炎性能的好处,以产生协同治疗效果.
- 这项研究为开发治疗IBD等慢性胃肠道疾病的先进组合疗法提供了基础.
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