解码巨细胞亚型,以设计调节基因,以缓解椎间盘退化
Da-Wang Zhao1, Qian Cheng2, Huimin Geng2
1Department of Orthopedics, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, China.
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|November 8, 2023
概括
这项研究开发了一种可注射的水凝,通过平衡细胞外矩阵新陈代谢来治疗椎间盘退化. 水凝调节巨细胞的表型,促进组织修复和减少退化.
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:
- 椎间盘退化,是腰部疼痛的原因,源于细胞核和细胞外矩阵 (ECM) 的代谢失衡.
- 巨细胞的表型对ECM代谢具有关键的影响,使巨细胞调节成为磁盘退化潜在的治疗策略.
研究的目的:
- 开发一种可注射的纳米复合材料水凝用于椎间盘退化 (IDD) 治疗.
- 为了研究水凝调节巨细胞表型和恢复ECM平衡的能力.
主要方法:
- 准备了一种可注射的水凝,嵌入了O-carboxymethyl chitosan中的epigallocatechin-3-gallate涂层的基亚帕酸纳米棒.
- 利用阿尔德海德氨酸进行交叉链接,创建一个能够调节巨细胞表型的系统.
- 评估了水凝对ECM代谢,介质干细胞分化和巨细胞极化 in vitro 和 in vivo 的影响.
主要成果:
- 氧酸纳米棒通过介酶干细胞分化促进了ECM类解体.
- 乙甲基-3-酸盐诱导了M2巨细胞的两极分化,减少了ECM代谢,缓解了退化.
- 水凝系统有效地控制了ECM的合成代谢/代谢,并抑制了与M1相关的IL17通路.
结论:
- 开发的可注射纳米复合材料水凝提供了一个有前途的微创治疗椎间盘退化.
- 调节巨细胞表型和恢复ECM代谢平衡是修复退化的椎间盘的关键.
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