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在关节内注射PLGA/聚多巴胺核心外纳米粒子减轻骨关节炎的进展

Lujie Zong¹, Qing Wang², Houyi Sun³

¹Department of Orthopaedics, The First People's Hospital of Changzhou, Soochow University, Changzhou, Jiangsu 213000, China.

ACS applied materials & interfaces

|April 22, 2024

概括

这项研究开发了一种新的纳米载体Kartogenin (KGN) 用于治疗骨关节炎 (OA). 装有KGN的纳米颗粒提供持续释放,并向骨髓中酶干细胞 (BMSC),有效促进软骨修复.

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.
整形外科整形外科整形外科

背景情况:

骨关节炎 (OA) 是一种退行性关节疾病,治疗选择有限.
目前的治疗方法主要是治疗疼痛,并不能阻止OA的进展.
卡托基因 (KGN) 通过诱导骨髓中介酶干细胞 (BMSCs) 的质生成,显示出对软骨修复的潜力.

研究的目的:

开发一种长效,有针对性的Kartogenin (KGN) 输送系统,用于治疗骨关节炎 (OA).
提高KGN在软骨再生和OA管理方面的治疗效果.

主要方法:

合成KGN载荷的纳米粒子使用PLGA/多多巴胺核心/外结构与PEGylation和BMSC向 (E7).
在实验室中评估了KGN从纳米颗粒中持续释放的情况.
在OA大鼠模型 (ACLT) 中评估了纳米颗粒在体外的chondrogenic潜力及其治疗效果.

主要成果:

装有KGN的PLGA/多多巴胺/PEG-E7纳米颗粒显示持续释放KGN长达4周.
聚多巴胺 (PDA) 成分清除了活性氧物种,E7增强了BMSC向.
纳米粒子在体外有效诱导了体生成,并在体内保护了软骨和底骨.

结论:

装有KGN的PLGA/多多巴胺/PEG-E7纳米颗粒代表了在OA治疗中持续的关节内药物输送的有希望的策略.
这种有针对性的纳米载体系统增强了KGN在软骨修复和OA管理方面的治疗潜力.
该平台可适应用于用于关节疾病的其他治疗剂.

关键词:

混凝土的生成混凝土的生成骨关节炎是一种关节炎.氧化应激是一种氧化应激.聚多巴胺胺是一种多多巴胺胺.针对性治疗治疗的目标.

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