可注射炎症响应水凝用于微环境调节椎间盘退化
Lei Liu1, Wantao Wang1,2,3, Lin Huang1
1Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, 518055, China.
Advanced healthcare materials
|April 22, 2024
概括
这项研究开发了一种新型的双刺激响应水凝,用于治疗椎间盘退化 (IDD). 水凝有效调节细胞核微环境,促进再生和缓解IDD进展.
科学领域:
- 生物材料科学 生物材料科学
- 再生医学是一种再生医学.
- 药物输送系统 药物输送系统
背景情况:
- 椎间盘退化 (IDD) 的特征是慢性炎症和细胞核缩 (NP) 细胞亡.
- 刺激反应性水凝在IDD治疗中具有局部,可控药物递送的潜力.
研究的目的:
- 开发一种可注射,双刺激响应的粘合性水凝,用于IDD中的微环境调节.
- 为了增强药物负载并实现基于pH和活性氧物种 (ROS) 的控制释放.
主要方法:
- 凝甲基烯基与酸基组的功能化.
- 加入氧化氨酸以改善粘附.
- 评估药物负载,刺激反应 (pH和ROS),激素清除,抗菌活性和生物相容性.
- 在体外和体内评估IDD模型中的治疗功效.
主要成果:
- 水凝证明了对含有二醇的药物增强的药物负载.
- 它表现出pH和ROS响应的行为,显著的激素清除和抗菌性质.
- 试验室研究表明,在氧化应激下,NP细胞具有保护作用.
- 在体内研究证实了治疗效益,包括保持水分,恢复圆盘高度和NP再生.
结论:
- 开发的双刺激响应水凝是IDD的一个有前途的治疗策略.
- 它有效调节磁盘微环境,减轻氧化应激,并促进NP再生.
- 这种方法有可能用于治疗椎间盘退化.
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