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通过SIRT3-激活和微环境调节的水凝微球重新调整线粒体亡/线粒体衰减平衡,以防止骨关节炎

Xiaowei Xia^1,2, Yang Liu^1,2, Yingjie Lu^1,2

¹Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou, 215006, China.

Advanced healthcare materials

|September 11, 2023

概括

这项研究揭示了激活三蛋白 (SIRT3) 通过调节线粒体亡和线粒体亡来保护软骨. 一种新的水凝微球输送系统 (DMY@HGP) 在体内有效治疗创伤后关节炎 (PTOA).

科学领域:

生物医学工程生物医学工程
细胞生物学细胞生物学
整形外科整形外科整形外科

背景情况:

骨关节炎 (OA) 的进展与 mitochondrial 功能障碍有关.
锡尔图因3 (SIRT3) 在调节线粒体动力学和OA期间的状细胞命运中的作用尚不清楚.

研究的目的:

调查SIRT3激活对软骨细胞和软骨细胞外基质 (ECM) 保存的保护作用.
开发和评估一种针对线粒体动态的新型药物输送系统,用于治疗OA.

主要方法:

冠状细胞被用SIRT3激动剂 (二米瑞,DMY) 或对抗剂 (3-TYP) 治疗.
使用微流体技术制造了一种双响应的水凝微球 (DMY@HAMA-GelMA-PBA,DMY@HGP).
在体内研究中使用创伤后OA (PTOA) 鼠标模型来评估DMY@HGP.GP的治疗疗效.

主要成果:

通过抑制线粒体亡 (mtApoptosis) 和促进线粒体亡,SIRT3激活保存了软骨ECM.
在PTOA模型中,DMY@HGP有效地改善了软骨损伤和骨下硬化.
用DMY@HGP治疗促进了PTOA大鼠的运动功能恢复.

结论:

通过SIRT3激活准线粒体动力学,为OA提供了一个有希望的治疗策略.
开发的DMY@HGP水凝微球系统显示了PTOA治疗的显著治疗潜力.

关键词:

在SIRT3中,SIRT3是最重要的.线粒细胞衰变 (mitophagy) 是一种神经衰变的过程.这就是 mtApoptosis.骨关节炎是一种关节炎.响应的微球是响应的微球.

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Mitochondria

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