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脂肪组织衍生中酶体干细胞通过瘤坏死因子抑制骨质细胞分化刺激基因-6

Kwanghoon Lee^1,2, Eunhee Ko^1,3, Yongbeom Park^4,5,6

¹Division of Rheumatology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea.

Tissue engineering and regenerative medicine

|March 7, 2024

概括

脂肪组织衍生的介质干细胞 (ADMSCs) 抑制骨质细胞分化. 这种效应是由瘤亡因子刺激基因-6 (TSG-6) 介导的,TSG-6是一种关键的抗炎分子.

科学领域:

干细胞生物学干细胞生物学
免疫学免疫学免疫学
骨生物学骨生物学

背景情况:

介质干细胞 (MSC) 显示出治疗性潜力,治疗由过度骨质细胞活性驱动的骨质损失状况.
MSCs通过骨质保护素 (OPG) 和IL-10等因素调节骨质结晶发生,但机制需要澄清.
瘤缩因子刺激基因-6 (TSG-6) 是一种抗炎分子,抑制骨质细胞激活并调解MSC功能.

研究的目的:

研究脂肪组织衍生的MSCs (ADMSCs) 是否通过TSG-6抑制骨质细胞分化.

主要方法:

人类ADMSCs在骨质结晶性条件下与小鼠骨髓衍生的单细胞/巨细胞共同培养.
用针对TSG-6或OPG的siRNA感染ADMSC,以评估它们的作用.
通过测量酸耐酸酶 (TRAP) 活性,骨质细胞标记物基因表达,多核TRAP+细胞计数和F-actin环形成来评估骨质细胞分化.

主要成果:

ADMSCs显著抑制了骨质细胞分化.
抑制TSG-6可以逆转这种抑制,与OPG抑制相似.
关键的骨质细胞形成标志物,包括TRAP活性和细胞计数,受到TSG-6水平的显著影响.

结论:

在特定培养条件下,ADMSCs通过TSG-6抑制骨质细胞分化.
TSG-6在调解ADMSCs的抗骨质结晶效应方面发挥着至关重要的作用.

关键词:

介质细胞干细胞介质细胞干细胞.骨质细胞生成 (Osteoclastogenesis) 是一个过程.这是TSG-6的TSG-6.

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