来自人体皮脱落牙的干细胞的外体抑制了骨关节炎的炎症
Chuang-Yu Lin1,2, Parichart Naruphontjirakul3, Te-Yang Huang4
1Department of Biomedical Science and Environmental Biology, Kaohsiung Medical University, Kaohsiung 807378, Taiwan.
International journal of molecular sciences
|August 29, 2024
概括
来自干细胞的外生体对骨关节炎 (OA) 治疗有前途,有效减少炎症和矩阵降解. 它们在减缓OA进展方面的治疗潜力与注射氨酸可比.
科学领域:
- 生物医学工程 生物医学工程
- 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:
- 骨关节炎 (OA) 是一种退行性关节疾病,通常用氨酸注射来治疗.
- 干细胞治疗,特别是通过膜信号传递,为软骨再生提供了一个有前途的途径.
- 干细胞衍生外体细胞 (SC-Exos) 是干细胞治疗效果的关键媒介.
研究的目的:
- 在体外骨关节炎模型中,研究从人体脱皮叶状牙 (SHED) 的干细胞中获得的外体的治疗潜力.
- 为了比较SHED-exosomes与氨酸在缓解OA相关炎症和矩阵降解方面的疗效.
主要方法:
- SHED被培养,外体被分离和表征 (CD9,CD63标记,154.1nm大小).
- 用IL-1β刺激SW1353红细胞以模仿OA.
- 细胞用SHED-exosomes (40μg/mL) 或酸处理,并分析炎症标志物和矩阵组件.
主要成果:
- SHED外基因组显著抑制了IL-1β诱导的促炎因素 (TNF-α,IL-6,iNOS,NO,COX-2,PGE2) 和矩阵降解酶 (MMP-13).
- 使用SHED外体的治疗增加了关键的软骨基因组件 - - 原II (1.76倍) 和ACAN (2.98倍) 的表达.
- 在抑制OA进展方面,SHED-外体的疗效与氨酸相当.
结论:
- SHED外体具有重要的抗炎和软骨保护性质,与骨关节炎治疗有关.
- SHED外体的治疗效果涉及NF-κB通路的调制.
- SHED外基因组代表了骨关节炎的可行的替代或辅助疗法,其疗效与氨酸相美.
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