基于结构性分离的超分子载药水凝增强了类风湿性关节炎治疗的药物输送
Hao Li1,2, Yuanning Lyu3,4, Ruinan Wang3,4
1Department of Joint Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China.
Bioactive materials
|August 4, 2025
概括
一种新型的超分子凝有效地同时提供甲和离子,用于类风湿性关节炎 (RA) 治疗. 在临床前模型中,这种响应pH的水凝可以持续释放药物,减少关节炎症并保护骨和软骨.
科学领域:
- 生物材料科学 生物材料科学
- 药物运输 药物运输 药物运输
- 类风湿病学 类风湿病学
背景情况:
- 类风湿性关节炎 (RA) 涉及关节炎和骨破坏.
- 目前的RA治疗面临着药物溶解性和持续递送的挑战.
- 治疗性离子的同时输送,如,用于骨修复是很困难的.
研究的目的:
- 开发一种pH响应的超分子水凝,用于联合输送甲状腺 (MTX) 和离子 (Mg2+),用于治疗RA.
- 为了实现由酸性RA关节环境触发的治疗剂的按需释放.
- 在大鼠模型中评估水凝在抑制炎症和促进骨重塑方面的有效性.
主要方法:
- 使用酸 (CYA) 制造超分子凝,用于pH响应的MTX和Mg2+的同时递送.
- 在实验室中评估MTX和Mg2+的pH触发释放动力学.
- 在老鼠RA模型中的体内评估,包括对炎症,骨破坏和软骨损伤的评估.
- 用RNA测序 (RNA-seq) 分析来研究分子机制.
主要成果:
- 开发的水凝 (Gel-MTX/Mg) 证明了对pH反应的,按需释放的MTX和Mg2+.
- 释放的MTX和Mg2+诱导了抗炎M2巨细胞两极分化和调节的骨质细胞/骨质细胞活性.
- RNA-seq显示了抗炎和骨重塑途径的丰富.
- 在老鼠中,单次关节内注射显著减少了RA症状,并保护了关节组织.
结论:
- 超分子凝使得药物和离子在RA治疗中能够有效地同时输送.
- 响应pH的水凝对炎症和骨退行性疾病具有显著的治疗潜力.
- 这种方法为局部化,按需治疗RA提供了一个有希望的策略.
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