口腔医学研究 ›› 2023, Vol. 39 ›› Issue (7): 613-618.DOI: 10.13701/j.cnki.kqyxyj.2023.07.009

• 牙周病学研究 • 上一篇    下一篇

基于转录组学分析ADORA3在牙周炎中的表达及调控

冯梅婷, 鲁嘉韦, 罗礼君*   

  1. 同济大学附属口腔医院牙周病科·上海牙组织修复与再生工程技术研究中心 上海 200072
  • 收稿日期:2023-02-06 发布日期:2023-07-25
  • 通讯作者: *罗礼君,E-mail:juneluo@yeah.net
  • 作者简介:冯梅婷(1998~ ),女,合肥人,硕士在读,主要从事牙周病学相关研究工作。
  • 基金资助:
    国家自然基金面上项目(编号:82071123)

Expression of ADORA3 in Periodontitis and Its Regulatory Role by Transcriptomic Analysis

FENG Meiting, LU Jiawei, LUO Lijun*   

  1. Department of Periodontology, Stomatological Hospital and Dental School of Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai 200072, China
  • Received:2023-02-06 Published:2023-07-25

摘要: 目的:探讨腺苷A3受体(adenosine A3 receptor, ADORA3)在牙周炎中的表达模式及调控作用。方法:构建牙周炎动物模型,micro-CT和HE染色观察各组小鼠牙槽骨丧失和牙周组织病理形态,并对结扎侧和对照侧牙龈组织进行转录组测序分析Adora3表达差异,RT-qPCR法检测ADORA3在人和小鼠牙龈组织及巨噬细胞中表达情况,转录组测序分析ADORA3与下游靶基因相关性并通过RT-qPCR法验证。结果:小鼠牙周炎模型构建成功,结扎侧牙龈组织中Adora3表达上调。牙周炎患者牙龈组织中ADORA3表达上调,炎症微环境下Adora3表达降低。转录组测序分析显示Adora3表达与下游靶基因抑制蛋白β-2(arrestin beta-2, ARRB2)呈正相关,且Arrb2基因敲除后Adora3表达下调。结论:基于转录组学分析及体外实验验证,ADORA3在不同来源牙龈组织及巨噬细胞中差异表达,且ADORA3表达水平与ARRB2呈正相关。

关键词: 转录组学分析, 牙周炎, 腺苷A3受体, 抑制蛋白β-2

Abstract: Objective: To investigate the expression pattern of adenosine A3 receptor (ADORA3) in periodontitis and its regulatory role. Methods: Animal models of periodontitis were constructed. Alveolar bone loss and the pathological morphology of periodontal tissues were observed by micro-CT and HE staining in each group of mice. The gingival tissues on the ligature-induced and control sides were subjected to transcriptomic sequencing to analyze the Adora3 expression, and then RT-qPCR was used to observe the expression of ADORA3 in human and mice periodontal tissues and macrophages. The correlation of ADORA3 with downstream target genes was analyzed by transcriptomic sequencing and validated by RT-qPCR. Results: Experimental periodontitis model was successfully established in mice, and the expression of Adora3 was upregulated in periodontal tissues on the ligature-induced side. ADORA3 was expressed highly in periodontal tissues from periodontitis, whereas Adora3 was downregulated in the inflammatory microenvironment. Transcriptomic sequencing results showed that Adora3 level was positively correlated with the downstream target gene arrestin beta-2 (ARRB2). And Adora3 level was down-regulated after Arrb2 knockout. Conclusion: Transcriptomic analysis and in vitro experiments verified that ADORA3 was differentially expressed in periodontal tissues and macrophages, which was positively correlation with ARRB2.

Key words: transcriptomic analysis, periodontitis, adenosine A3 receptor, arrestin beta-2