中国组织工程研究 ›› 2022, Vol. 26 ›› Issue (30): 4867-4872.doi: 10.12307/2022.730

• 牙髓及牙周膜干细胞 Dental pulp and periodontal ligament stem cells • 上一篇    下一篇

大麻二酚促进人牙周膜干细胞增殖和成骨分化

李熙恒1,李欣悦1,毛天娇2,杨婉琪3,唐  亮1,李  江1,2   

  1. 吉林大学口腔医院,1口腔修复科,3正畸科,吉林省长春市   130021;2广州医科大学附属口腔医院口腔修复科,广东省广州市   510150
  • 收稿日期:2021-10-19 接受日期:2021-11-13 出版日期:2022-10-28 发布日期:2022-03-29
  • 通讯作者: 李江,主任医师,教授,博士生导师,吉林大学口腔医院口腔修复科,吉林省长春市 130021;广州医科大学附属口腔医院口腔修复科,广东省广州市 510150
  • 作者简介:李熙恒,男,1995年生,广西壮族自治区桂林市人,在读硕士,主要从事口腔修复学方面的研究。

Cannabidiol promotes proliferation and osteogenic differentiation of human periodontal ligament stem cells

Li Xiheng1, Li Xinyue1, Mao Tianjiao2, Yang Wanqi3, Tang Liang1, Li Jiang1, 2   

  1. 1Department of Prosthodontics, 3Department of Orthodontics, Hospital of Stomatology, Jilin University, Changchun 130021, Jilin Province, China; 2Department of Prosthodontics, Affiliated Stomatology Hospital, Guangzhou Medical University, Guangzhou 510150, Guangdong Province, China
  • Received:2021-10-19 Accepted:2021-11-13 Online:2022-10-28 Published:2022-03-29
  • Contact: Li Jiang, Chief physician, Professor, Doctoral supervisor, Department of Prosthodontics, Hospital of Stomatology, Jilin University, Changchun 130021, Jilin Province, China; Department of Prosthodontics, Affiliated Stomatology Hospital, Guangzhou Medical University, Guangzhou 510150, Guangdong Province, China
  • About author:Li Xiheng, Master candidate, Department of Prosthodontics, Hospital of Stomatology, Jilin University, Changchun 130021, Jilin Province, China

摘要:

文题释义:
大麻二酚:是大麻中最主要的非精神活性成分,具有抗炎、抗氧化等药理活性,在炎症、神经退行性疾病、自身免疫性疾病、癫痫、癌症等疾病治疗中表现出良好的效果。
牙周膜干细胞:是一种存在于牙周膜中未分化的间充质干细胞,具有自我更新和多向分化潜能,在一定培养条件下可以形成牙槽骨、牙骨质和牙周膜样组织,是促进牙周组织和骨组织再生最具潜力的细胞之一。

背景:大麻二酚是大麻中主要的非精神活性成分,具有抗炎、抗氧化等药理活性,最近研究表明,大麻二酚能有效促进前成骨细胞和间充质干细胞成骨分化,但大麻二酚对人牙周膜干细胞增殖和成骨分化的影响尚不明确。
目的:探究大麻二酚对人牙周膜干细胞增殖和成骨分化的影响。
方法:采用组织块法分离培养人牙周膜干细胞,通过形态学观察、流式细胞术分析和多向分化实验进行细胞鉴定。采用CCK-8法检测不同浓度(0.1,0.5,2.5,12.5 µmol/L)大麻二酚对人牙周膜干细胞增殖的影响;通过碱性磷酸酶活性、茜素红S染色及半定量分析、qPCR检测成骨相关基因表达水平探讨不同浓度大麻二酚(0.1,0.5,2.5 µmol/L)对人牙周膜干细胞成骨分化的影响。
结果与结论:①0.1 μmol/L大麻二酚对人牙周膜干细胞活力无明显影响,0.5,2.5 μmol/L大麻二酚显著促进其增殖,而12.5 μmol/L大麻二酚有明显细胞毒性;②0.1-2.5 μmol/L大麻二酚可显著增强人牙周膜干细胞的碱性磷酸酶活性和矿物沉积,上调细胞内成骨相关基因COL1、OCN、RUNX2和β-catenin表达;③结果表明,在一定浓度范围内大麻二酚以浓度依赖性方式促进人牙周膜干细胞增殖和成骨分化,其中2.5 μmol/L效果最为显著,该促进作用可能与Wnt/β-catenin通路有关。

https://orcid.org/0000-0002-2367-7757 (李熙恒)

中国组织工程研究杂志出版内容重点:干细胞;骨髓干细胞;造血干细胞;脂肪干细胞;肿瘤干细胞;胚胎干细胞;脐带脐血干细胞;干细胞诱导;干细胞分化;组织工程

关键词: 牙周膜干细胞, 大麻二酚, 成骨分化, 组织工程, Wnt/β-catenin信号通路

Abstract: BACKGROUND: Cannabidiol, one of the major non-psychotomimetic components from plant Cannabis sativa, has anti-inflammatory, antioxidant, and other pharmacological activities. Recently, it was shown that cannabidiol could effectively promote the osteogenic differentiation of preosteoblasts and mesenchymal stem cells. However, the effect of cannabidiol on the proliferation and osteogenic differentiation of human periodontal ligament stem cells remains unclear.  
OBJECTIVE: To investigate the effects of cannabidiol on the proliferation and osteogenic differentiation of human periodontal ligament stem cells.
METHODS:  Human periodontal ligament stem cells were isolated and cultured using explant method. Cell identification was performed by morphological observation, flow cytometry analysis, and multidirectional differentiation assay. CCK-8 assay was used to assess the effect of different concentrations of cannabidiol (0.1, 0.5, 2.5, 12.5 µmol/L) on the proliferation of human periodontal ligament stem cells. Alkaline phosphatase activity assay, Alizarin Red S staining and semi quantitative analysis were performed to assess different concentrations of cannabidiol (0.1, 0.5, 2.5 µmol/L) on the osteogenic differentiation of human periodontal ligament stem cells. Osteogenic differentiation-related gene expression level changes were assessed by qPCR.  
RESULTS AND CONCLUSION: (1) 0.1 μmol/L cannabidiol showed no significant effect on the viability of human periodontal ligament stem cells; 0.5 and 2.5 μmol/L cannabidiol significantly increased cell proliferation, whereas 12.5 μmol/L cannabidiol had obvious cytotoxicity. (2) 0.1-2.5 μmol/L cannabidiol significantly enhanced alkaline phosphatase activity and mineral deposition of human periodontal ligament stem cells, and upregulated the expression of osteogenic related genes COL 1, OCN, RUNX2, and β-catenin. (3) In conclusion, cannabidiol promoted proliferation and osteogenic differentiation of human periodontal ligament stem cells in a concentration dependent manner, with the most significant effect at 2.5 μmol/L, which may be related to Wnt/β-catenin signaling pathway.

Key words: periodontal ligament stem cells, cannabidiol, osteogenic differentiation, tissue engineering, Wnt/β-catenin signaling pathway

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