局部注射,ROS清除和ROS/pH响应的聚合物微粒嵌入水凝,用于精确的最小侵入性和长期的类风湿治疗
Xinhua Liu1, Xing Chen2,1, Yifan Fei2,1
1Institute of Biomass & Functional Materials, Shaanxi University of Science &Technology, Xi'an, 710021, China.
Advanced healthcare materials
|December 4, 2024
概括
一个新的药物递送平台HC@PTM,有效地清理反应性氧物种 (ROS) 并响应pH值变化以进行向的甲状腺,显著改善类风湿性关节炎治疗.
科学领域:
- 生物材料科学 生物材料科学
- 纳米技术 纳米技术
- 类风湿病学 类风湿病学
背景情况:
- 类风湿性关节炎 (RA) 是一种慢性自身免疫性疾病,导致关节炎症,侵蚀和破坏.
- 目前的治疗方法在向药物输送和管理炎症关节微观环境方面面临挑战.
研究的目的:
- 开发一种局部可注射,可清除ROS和可响应ROS/pH的药物递送平台 (HC@PTM),用于增强类风湿性关节炎治疗.
- 在 RA 的临床前模型中研究 HC@PTM 含有甲醇 (MTX) 的治疗疗效.
主要方法:
- 生物复合的阿尔多化酸 (HA) 与奇托 (CS) 交联,形成HC.
- 将装满MTX的ROS触发/消除小粒 (PTM) 纳入HC矩阵.
- 评估HC@PTM的特性,包括ROS清除,药物释放动力学,形状适应性,自我修复能力和体外/体内治疗效果.
主要成果:
- HC@PTM证明了有效的ROS清理和精确控制的MTX释放,以应对关节炎症 (ROS和低pH).
- 该平台表现出极好的形状适应性和自我修复特性,符合关节结构.
- 在体外和体外研究表明,HC@PTM诱导了M2巨细胞两极分化,减少了炎症因素,改善了RA微环境,导致了协同治疗结果.
结论:
- HC@PTM代表了对类风湿性关节炎的微创精密医学的重大进步.
- 开发的平台为持续和有针对性的药物输送提供了一个有希望的策略,改善RA治疗结果.
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