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巨细胞衍生的亡体会损害牙周炎时骨质母细胞的骨质生成能力

Xu Liu¹, Lijia Guo², Juan Du¹

¹Laboratory of Tissue Regeneration and Immunology and Department of Periodontics, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Beijing, China.

|November 23, 2023

概括

从低氧环境中获得的巨细胞衍生的亡体 (ABs) 抑制骨质母细胞分化,并通过转移miR-483-5p来促进牙周炎中的骨质再吸收,抑制骨质原生活性.

科学领域:

口腔生物学口腔生物学
免疫学免疫学免疫学
细胞生物学细胞生物学

背景情况:

牙周炎涉及骨质母细胞和骨质母细胞活动的不平衡,导致组织破坏.
巨细胞在牙周炎中至关重要,但缺氧会诱导它们的亡,形成亡体 (AB).
在牙周炎的发病过程中,巨细胞衍生的ABs的作用以前是未知的.

研究的目的:

为了研究巨衍生的ABs对骨质母细胞的影响.
在牙周炎模型中确定ABs对骨质细胞分化和牙周骨再吸收的影响.

主要方法:

在体外共培养来自缺氧诱导的巨细胞与骨质母细胞的ABs.
在体内牙周炎模型与AB注射到牙周.
微RNA (miRNA) 阵列分析和双 luciferase 记者测定用于识别关键的miRNA及其目标.

主要成果:

巨衍生的ABs显著抑制了骨质母细胞分化,并在体内促进了膜骨再吸收.
在ABs中,MiR-483-5p被确定为一个关键的miRNA.
证实了米R-483-5p针对Col1A1mRNA,降低其表达的调节.

结论:

巨细胞衍生的ABs通过miR-483-5p转移抑制骨质母细胞分化.
这一过程降低了原I型α1 (Col1A1) 的表达,抑制了骨质生成活性.
巨细胞衍生的ABs通过破坏骨形成,在牙周炎中发挥调节作用.

关键词:

第一个列1A1A1 它们是apoptotic体.巨细胞是一个巨细胞.miR‐483‐5p 的时间.骨质母细胞的骨质母细胞.

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