响应多臂PEG修饰的COF纳米复合材料:动态光热,pH/ROS双响应,针对性载体用于类风湿性关节炎治疗
Saisai Ge1, Xinyue Wang1, Xinru Zhao1
1Department of Pharmacology, School of Basic Medical Sciences, Anhui Medical University, Hefei, 230032, China.
Advanced healthcare materials
|June 17, 2024
概括
新的共价有机框架 (COFs) 提供核糖核酶A (RNase A) 来治疗类风湿性关节炎 (RA). 这种双重反应系统可以减少老鼠的关节炎症和胀,恢复正常的关节结构.
科学领域:
- 生物材料科学 生物材料科学
- 免疫学 免疫学 免疫学
- 纳米技术 纳米技术
背景情况:
- 类风湿性关节炎 (RA) 是一种慢性免疫性疾病,由于免疫细胞透和纤维细胞样同胞细胞 (FLS) 增殖,导致关节炎和破坏.
- 目前的RA治疗在解决炎症和扩散性FLS方面都有局限性.
- 需要新的治疗策略来有效地管理RA进展.
研究的目的:
- 开发和评估新的共价有机框架 (COF) 作为类风湿性关节炎 (RA) 药物输送系统.
- 研究在炎症条件下从COF中释放Ribonuclease A (RNase A) 的双反应性释放.
- 在辅助剂诱导性关节炎 (AIA) 鼠标模型中评估RNase A载荷COF的治疗疗效.
主要方法:
- 制造三种多臂聚乙烯糖醇 (PEG) 修饰的COF光热复合材料系统.
- 将蛋白质药物核糖酶A (RNase A) 载入COF系统.
- 分子对接研究预测RNase A和NF-κB p65相互作用.
- 西部涂抹以确认NF-κB通路的抑制.
- 在AIA大鼠中的治疗效果的体外和体内评估.
主要成果:
- 在低pH和高反应性氧物种 (ROS) 条件下,COF系统证明了RNase A的双反应释放.
- 分子对接和西式涂抹证实了RNase A对NF-κB p65活性的抑制作用.
- 在体内研究显示,AIA大鼠的关节胀和形显著减少.
- 在治疗后,观察到关节形态恢复到正常水平.
结论:
- 多臂PEG修饰的COF系统在类风湿性关节炎 (RA) 治疗中显示出前景.
- COFs有效地提供RNase A,针对RA的炎症和增殖方面.
- 这种方法为RA提供了一个新的治疗策略,扩大了COFs的生物医学应用.
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