强大的反应性氧物种调节器搭便车酵母微囊用于大肠炎的缓解,通过三元化肠道微环境的更新
Jintao Li1, Jian Song2, Zhichao Deng3
1Department of Radiology, the First Affiliated Hospital, School of Public Health, Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, China.
Bioactive materials
|March 11, 2024
概括
一种新的酵母微囊输送系统 (CM@YM) 通过减少炎症,清除活性氧物种并恢复肠道健康,有效治疗性结肠炎. 这种方法调节肠道微生物群,为肠道平衡提供了一个有希望的治疗策略.
科学领域:
- 生物材料科学 生物材料科学
- 胃肠病学 胃肠病学
- 免疫学 免疫学 免疫学
背景情况:
- 性结肠炎 (UC) 涉及不清楚起源的慢性肠道炎症.
- 目前的治疗方法难以同时解决氧化应激,炎症和肠道微生物群平衡的问题.
- 有效的UC疗法需要整体方法来恢复肠道平衡.
研究的目的:
- 开发一种用于治疗性结肠炎 (UC) 的新型药物输送系统.
- 创建一个金属多网络 (MPN),将黄素 (Cur) 封装在酵母微囊 (YM) 中,以增强结肠向.
- 通过调节肠道微环境来评估CM@YM在缓解UC症状方面的治疗疗效.
主要方法:
- 使用表甲基酸盐 (EGCG) 和Fe3+构建了一个金属多网络 (MPN).
- 封装的黄素 (Cur) 变成MPN,形成Cur-MPN,一种反应性氧物种 (ROS) 清除剂.
- 通过将Cur-MPN封装成口服酵母微囊 (YM) 来开发CM@YM.
- 在DSS诱导的大肠炎小鼠模型中评估CM@YM的疗效,分析ROS清理,细胞因子水平,巨分化,屏障功能,肠道微生物群组成和短链脂肪酸 (SCFA) 生产.
主要成果:
- CM@YM展示了强大的ROS清除能力,包括超氧化基 (O2•−) 和基 (•OH).
- 口服CM@YM有效缓解了DSS诱导的大肠炎,显示出保护性和治疗性作用.
- CM@YM减少了促炎性细胞因子,促进了M1巨细胞的两极分化,并恢复了肠道屏障功能.
- 该疗法调节了肠道微生物组,增加了细菌多样性,并促进了具有高SCFA水平 (酸,酸,黄油酸) 的抗炎性表型.
结论:
- CM@YM作为UC的有效药物输送系统,保护有效载荷并增强结肠向.
- 通过ROS清理,抗炎和肠道微生物群调节协同调节肠道微环境是UC的有希望的治疗策略.
- 开发的系统表现出卓越的生物相容性和治疗潜力,用于治疗性结肠炎.
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