[与ADSCs-exos结合的aucubin通过TLR4/NF-κB通路保护TBHP诱导的核细胞]
Lei Yang1, Zhao-Yong Li1, Lu Ma2
1the First Affiliated Hospital of Hunan University of Chinese Medicine Changsha 410007, China.
概括
脂肪酸衍生干细胞外体 (ADSCs-exos) 和aucubin保护核细胞 (NPCs) 免受炎症损伤. 它们的组合通过抑制TLR4/NF-κB通路来协同增强NPC活力和细胞外矩阵合成.
科学领域:
- 生物医学科学 生物医学科学
- 干细胞生物学 干细胞生物学
- 细胞外矩阵研究 细胞外矩阵研究
背景情况:
- 核细胞 (NPC) 对椎间盘健康至关重要.
- 炎症性损伤,衰老和亡有助于NPC功能障碍和磁盘退化.
- 脂肪酸衍生干细胞外体 (ADSCs-exos) 和aucubin显示出潜在的治疗益处.
研究的目的:
- 研究ADSCs-exos与aucubin相结合对人类NPCs对炎症损伤的保护作用和机制.
- 评估对NPC活力,增殖,衰老,亡和细胞外矩阵合成的影响.
- 阐明托尔类受体4 (TLR4) /核因子-卡帕B (NF-κB) 信号通路的作用.
主要方法:
- 使用 tert-butyl氧化物 (TBHP) 诱导NPC损伤.
- 治疗组:正常,模型,奥库,ADSCs-exos,以及奥库+ADSCs-exos.
- 评估细胞活力 (CCK-8),增殖 (EdU),衰老 (SA-β-Gal),细胞周期和细胞亡 (流细胞计).
- 通过ELISA测量炎症性细胞因子 (IL-1β,IL-10,TNF-α).
- 对亚格格兰,COL2A1,TLR4和NF-κB表达的分析 (RT-qPCR,西部斑).
主要成果:
- 奥库和ADSCs-exos都改善了NPC活力,增殖和细胞外基质合成,同时减少了衰老和亡.
- 用奥库或ADSCs-exos治疗降低了炎症标志物 (IL-1β,TNF-α) 和增加了IL-10.
- 这两种药物都降低了TLR4和NF-κB的表达.
- 奥库和ADSCs-exos的组合表现出协同的保护作用,超过了单独的治疗.
- 联合治疗进一步增强了NPC活力,增殖和ECM合成,并更有效地抑制了炎症和亡.
结论:
- 奥库和ADSCs-exos保护人类NPC免受炎症损伤,衰老和亡.
- 这些保护作用通过抑制TLR4/NF-κB信号通路来介导.
- 奥库和ADSCs-exos的组合证明了NPC保护和细胞外矩阵再生的协同治疗潜力.
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