冠状细胞向金纳米颗粒,通过保持软骨平衡,保护生长板免受炎症损伤
Xue Bai1,2, Hongyan Sun3, Lina Jia3
1School of Biomedical Engineering, Capital Medical University, Beijing, 100069, China.
Materials today. Bio
|September 28, 2023
概括
黄金纳米粒子 (AuNPs) 保护儿童的软骨免受炎症. AuNP可降低状细胞亡和细胞外基质降解,为儿科软骨损伤提供潜在的治疗策略.
科学领域:
- 生物医学工程 生物医学工程
- 纳米技术 纳米技术
- 儿科整形外科 儿科整形外科
背景情况:
- 炎症诱导的软骨破坏是一个重要的临床问题,特别是在儿童中,研究集中在儿科患者群体上是有限的.
- 儿童的生长板 (GP) 软骨损伤由于正在进行的骨发育而带来独特的挑战.
研究的目的:
- 在小儿小鼠模型中研究金纳米颗粒 (AuNPs) 对脂聚糖 (LPS) 诱导的生长板软骨损伤的保护作用.
- 评估AuNPs抵消冠状细胞亡和细胞外矩阵 (ECM) 降解的能力.
主要方法:
- 工程AuNPs被施用给一个年轻的小鼠模型,LPS诱导的GP软骨损伤.
- 评估了慢性细胞活力,亡率,ECM降解因子和炎症性细胞因子释放.
- 进行了组织学分析,观察了GP的软骨结构和隙形成.
主要成果:
- AuNPs被软骨细胞有效吸收,使得软骨细胞的活力增加了29%.
- AuNP显著降低了LPS诱导的炎症性细胞因子释放和ECM降解因子.
- AuNPs抑制了GP软骨的隙形成,并减少了72.38%的状细胞亡和70.89%的ECM降解.
结论:
- 黄金纳米颗粒在儿科模型中显示出对炎症性软骨损伤的保护作用.
- AuNP减轻了状细胞的亡和ECM的退化,部分是通过维持ECM的合成代谢-亲合成代谢因子平衡来减轻.
- 这些发现表明AuNPs是保护儿科软骨免受炎症攻击的潜在治疗剂.
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