口腔医学研究 ›› 2023, Vol. 39 ›› Issue (6): 541-546.DOI: 10.13701/j.cnki.kqyxyj.2023.06.014

• 口腔生物学研究 • 上一篇    下一篇

维生素D及其受体诱导口腔扁平苔藓巨噬细胞IL-10表达

葛学军1,2, 孙卓1,2, 赵珍妮1,2, 杜杰1,2*   

  1. 1.山西医科大学口腔医学院·口腔医院,口腔疾病防治与新材料山西省重点实验室 山西 太原 030001;
    2.山西医科大学口腔医学院·口腔医院,牙体牙髓科 山西 太原 030001
  • 收稿日期:2023-01-06 出版日期:2023-06-28 发布日期:2023-06-21
  • 通讯作者: *杜杰,E-mail:dj1243@hotmail.com
  • 作者简介:葛学军(1972~ ),男,太原人,硕士,副教授,研究方向:维生素D与口腔扁平苔藓的关系。
  • 基金资助:
    国家自然科学基金(编号:81800499)

Vitamin D/VDR Signaling Regulates IL-10 Expression in Macrophages from Oral Lichen Planus

GE Xuejun1,2, SUN Zhuo1,2, ZHAO Zhenni1,2, DU Jie1,2*   

  1. 1. Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Shanxi Medical University School and Hospital of Stomatology, Taiyuan 030001, Shanxi, China;
    2. Department of Endodontics, Shanxi Medical University School and Hospital of Stomatology, Taiyuan 030001, China
  • Received:2023-01-06 Online:2023-06-28 Published:2023-06-21

摘要: 目的:探讨维生素D及其受体(VD/VDR)对口腔扁平苔藓(OLP)巨噬细胞炎性因子的调控作用。方法:选取OLP患者和健康对照志愿者各20例,分选组织巨噬细胞检测炎性因子和VDR表达量并分析两者间相关性;在单核源巨噬细胞和THP-1细胞系过表达VDR或加入维生素D,检测细胞白细胞介素-10(IL-10)表达量;染色体免疫共沉淀和荧光素酶报告基因实验检测VDR与IL-10基因启动子结合情况;维生素D处理OLP巨噬细胞检测炎性因子表达量。结果:OLP病变组织巨噬细胞VDR表达水平降低,且与炎症抑制因子IL-10表达水平呈正相关;细胞水平上,VD/VDR信号通路明显诱导巨噬细胞IL-10表达;分子机制上,VDR通过与IL-10基因启动子区域作用元件相结合,激活IL-10基因转录水平;维生素D处理后OLP巨噬细胞IL-10表达上调且促炎因子表达下调。结论:OLP巨噬细胞VD/VDR信号通路通过调控IL-10转录水平影响炎症因子表达。

关键词: 口腔扁平苔藓, 维生素D, 维生素D受体, 炎性因子, 白细胞介素-10

Abstract: Objective: To investigate the regulatory roles of vitamin D and its receptor VDR in the cytokines production in macrophages from oral lichen planus (OLP). Methods: Twenty OLP patients and 20 healthy volunteers were recruited. Macrophages from oral tissues were isolated, and the expressions of cytokines and VDR was detected. IL-10 levels were measured in monocyte-derived macrophages and THP-1 cells overexpressed VDR or treated with vitamin D. The binding of VDR and its element in the promoter region of IL-10 gene was confirmed by ChIP and luciferase report assays. Cytokines levels were detected in OLP macrophages with vitamin D treatment. Results: VDR expression was decreased in OLP macrophages and positively correlated with IL-10 expression. Vitamin D/VDR signaling up-regulated IL-10 levels in monocyte-derived macrophages and THP-1 cells. Mechanistically, VDR was able to interact with its element in the promoter to enhance the transcription of IL-10. Vitamin D increased IL-10 levels and decreased pro-inflammatory cytokines expression in OLP macrophages.Conclusion: Vitamin D/VDR signaling regulates IL-10 transcription to mediate cytokines levels in OLP macrophages.

Key words: oral lichen planus, vitamin D, vitamin D receptor, cytokine, IL-10