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软骨端板向工程外体释放和酸中和化凝逆转椎间盘退化

Jiawen Zhan¹, Yongzhi Cui², Ping Zhang¹

¹Department of Orthopedics, Wangjing Hospital, China Academy of Chinese Medical Sciences, Beijing, 100000, China.

Advanced healthcare materials

|November 18, 2024

概括

这项研究引入了一种新型的水凝,它同时准软骨末板细胞和核细胞炎症,通过减少氧化应激和酸度,为椎间盘退化 (IVDD) 提供了有前途的治疗方法.

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.
细胞生物学细胞生物学

背景情况:

椎间盘退化 (IVDD) 是由软骨末板细胞 (CEPC) 和核细胞 (NPC) 的炎症引起的.
CEPC退化涉及铁离子流入,反应性氧物种 (ROS) 和cGAS-STING通路.
由于CEPC衍生的细胞因子和微环境酸度加剧了NPC炎症.

研究的目的:

开发一种复合水凝,同时缓解CEPC和NPC炎症.
为了研究装载着盐酸A (CAP-sEXOs) 的工程外体的治疗潜力,在CaCO3 / 基托桑水凝 (CAP-sEXOs@Gel) 中.

主要方法:

制造一个装有CEPC向的工程外体携带盐酸的CaCO3 / 奇托桑水凝A.
对水凝的局部保留,缓慢释放和CEPC特定吸收的评估.
对水凝对细胞内铁,ROS,线粒体功能,mtDNA泄漏和CEPC中的cGAS-STING通路的影响的评估.
测量水凝中和酸性和减轻NPC炎症的能力.

主要成果:

CAP-sEXOs@Gel证明了持续的局部保留,缓慢释放和CEPCs的特定吸收.
摄入CAP-sEXO通过抑制HIF-2α/TfR1,维护线粒体功能和抑制cGAS-STING通路,降低了CEPC中的细胞内铁和ROS.
该CaCO3成分有效地中和了H+离子,减轻了NPC炎症.
复合水凝成功抑制了CEPC和NPC的炎症.

结论:

开发的CAP-sEXOs@Gel水凝为IVDD提供了一种双重作用的治疗策略.
这种方法同时解决CEPC炎症和微环境酸性,为椎间盘退化提供了有前途的治疗方法.

关键词:

软骨末端板准的目标是软骨.工程设计的外体细胞这是一种水凝.炎症导致的炎症.椎间盘退化椎间盘退化

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