一个ROS响应的纳米载体,同时提供纳米酶和thalidomide,用于协同治疗性结肠炎
Jintao Shen1,2, Wencheng Jiao1, Yizhi Zhang1
1Beijing Institute of Radiation Medicine, Beijing, 100850, China.
Materials today. Bio
|October 13, 2025
概括
一种新型纳米载体 (TPN) 通过清除活性氧物种 (ROS) 和调节免疫反应,有效治疗性结肠炎 (UC). 这种协同方法为UC患者提供了有效和安全的治疗策略.
科学领域:
- 生物医学工程 生物医学工程
- 纳米技术纳米技术
- 胃肠病学 胃肠病学
背景情况:
- 性结肠炎 (UC) 是一种慢性炎症性肠病,发病率越来越高.
- 目前的UC治疗效果有限,副作用很大.
- 病原发生涉及免疫失调和氧化应激,需要新的治疗策略.
研究的目的:
- 开发一种新的ROS响应纳米载体 (TPN) 用于结肠炎的协同治疗.
- 调查TPN捕获活性氧物种 (ROS) 和调节免疫反应的能力.
- 在临床前大肠炎模型中评估TPN的治疗疗效和安全性.
主要方法:
- 通过将氧化纳米酶和thalidomide封装在ROS响应的聚合物中制造TPN.
- 在体外评估ROS清理活性,ROS触发的药物释放,以及对氧化应激和亡的保护.
- 在DSS诱导的小鼠结肠炎模型中的体内评估,评估临床症状,结肠损伤,免疫调节和肠道微生物群组成.
主要成果:
- TPN显示出强大的ROS清理能力和ROS触发的thalidomide释放.
- 在体外研究表明TPN减弱ROS诱导的氧化应激和亡.
- 在体内,TPN显著改善了结肠炎症状,减少了炎症,改善了肠道微生物群,没有观察到系统性毒性.
结论:
- 性结肠炎是治疗性结肠炎的有效和安全的治疗策略.
- 纳米载体有效地提供协同作用的抗氧化剂和免疫调节功能.
- TPN显示了改善UC患者治疗结果的希望.
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