可注射生物粘合水凝清除ROS和恢复粘膜屏障,用于增强性结肠炎治疗
Daming Li1, Jiao Li1, Tao Chen1
1Key Laboratory of Advanced Technologies of Materials, Ministry of Education and School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China.
ACS applied materials & interfaces
|August 2, 2023
概括
这项研究开发了一种用于治疗性结肠炎 (UC) 的新型直肠水凝. 水凝修复粘膜屏障,并清除活性氧物种 (ROS),以改善UC缓解.
科学领域:
- 生物材料科学 生物材料科学
- 胃肠病学 胃肠病学
- 药物输送系统 药物输送系统
背景情况:
- 性结肠炎 (UC) 治疗难以实现长期缓解.
- 关键的UC病理包括受损的粘膜壁垒和炎症.
- 需要一种双重的方法,以障碍修复和炎症控制为目标.
研究的目的:
- 设计一个直肠生物粘合性水凝,用于UC中持续的药物输送.
- 同时恢复肠道屏障和清理反应性氧物种 (ROS).
- 改善性结肠炎患者的长期缓解率.
主要方法:
- 开发了一个生物粘合性水凝从硫烯酸二酸盐和多多巴胺 (CS-PDA).
- 在CS-PDA水凝中加入硫酸 (SF),一种ROS清理剂.
- 对长期保留和持续的SF释放进行评估的直肠注射.
主要成果:
- 该CS-PDA水凝显示了粘膜粘合特性,可延长结肠保留时间.
- 持续释放的SF有效地清除了炎症区域的ROS.
- 氏素硫酸盐 (CS) 促进了肠道上皮屏障的恢复.
结论:
- 装有SF的CS-PDA水凝为UC治疗提供了一种双作用策略.
- 这种方法同时解决粘膜屏障缺陷和氧化应激.
- 开发的水凝显示了对有效和持续的性结肠炎管理的承诺.
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