口腔医学研究 ›› 2020, Vol. 36 ›› Issue (9): 839-843.DOI: 10.13701/j.cnki.kqyxyj.2020.09.010

• 牙周病学研究 • 上一篇    下一篇

“红色复合体”致病菌裂解液对人牙周膜细胞成骨分化能力的影响

周何洁1, 李胜鸿2, 彭培钊2, 唐榕2, 李艾莲2, 曾锦3*   

  1. 1.四川省新津县人民医院口腔科 四川 成都 610000;
    2.西南医科大学口颌面修复重建和再生实验室 四川 泸州 646000;
    3.西南医科大学口颌面修复重建和再生实验室,西南医科大学附属口腔医院正畸科 四川 泸州 646000
  • 收稿日期:2020-02-15 出版日期:2020-09-28 发布日期:2020-09-15
  • 通讯作者: *曾锦,E-mail: zengjin@swmu.edu.cn
  • 作者简介:周何洁(1984~),女,四川新津人,硕士,主治医师,主要从事口腔疾病临床及基础研究。
  • 基金资助:
    四川省泸州市科技局应用基础研究项目(编号:2019-JYJ-55);国家级大学生创新创业训练计划项目(编号:201816032053);西南医科大学重点项目(编号:2017-ZRZD-001)

Effects of Extracts from “Red Complex” Periodontal Pathogens on Osteogenic Differentiation Capacity of Human Periodontal Ligament Cells

ZHOU Hejie1, LI Shenghong2, PENG Peizhao2, TANG Rong2, LI Ailian2, ZENG Jin3*   

  1. 1. Department of Stomatology, Xinjin County People's Hospital, Chengdu 610000 China;
    2. Orofacial Reconstruction and Regeneration Laboratory, The Affiliated Stomatological Hospital of Southwestern Medical University, Luzhou 646000, China;
    3. Orofacial Reconstruction and Regeneration Laboratory, Department of Periodontal Orthodontics, The Affiliated Stomatological Hospital, Southwestern Medical University, Luzhou 646000, China
  • Received:2020-02-15 Online:2020-09-28 Published:2020-09-15

摘要: 目的: 探讨“红色复合体”牙周致病菌裂解液对人牙周膜细胞成骨分化能力的影响。方法: 收集因正畸需要而拔除的健康前磨牙,原代培养人牙周膜干细胞(hPDLCs);采用免疫荧光方法和成骨分化诱导实验对培养的原代hPDLCs进行鉴定;体外联合培养牙龈卟啉单胞菌、齿垢密螺旋体和福赛斯坦纳菌,建立“红色复合体”模型,扫描电镜对其进行鉴定;制备“红色复合体”裂解液,通过碱性磷酸酶试剂盒、实时定量PCR、茜素红染色,检测裂解液对hPDLCs碱性磷酸酶活性,成骨分化相关基因表达的影响;以及对hPDLCs成骨矿化能力的影响。结果: 在“红色复合体”裂解液的刺激下,hPDLCs碱性磷酸酶活性,成骨分化相关基因ALP、Runx2、OPN、COL1的表达以及成骨矿化水平显著降低。结论: “红色复合体”牙周致病菌能够抑制hPDLCs的成骨分化能力。

关键词: 牙周膜细胞, 牙周致病菌, 红色复合体, 成骨分化能力

Abstract: Objective: To evaluate the effects of extracts from “Red Complex” periodontal pathogens on osteogenic differentiation capacity of human periodontal ligament cells (hPDLCs). Methods: hPDLCs were isolated and primary cultured from first premolars extracted from orthodontic patients. The primary cultured cells were verified by immunofluorescence and osteogenic induction methods. The model of “Red Complex” was set by co-culturing Pg, Td, and Tf in vitro, and was verified by SEM. Soluble bacterial extracts obtained from “Red Complex” was used to investigate the effects of “Red Complex” periodontal pathogens on the ALP activities, osteogenic related genes expression, and mineralization of hPDLCs by performing ALP assay, RT-PCR, and Alizarin Red staining. Results: Under the stimulation of 100 μg/mL bacterial extracts, the ALP activities, expression of osteogenic related genes ALP, Runx2, OPN, and COL1, and mineralization of hPDLCs were significantly decreased. Conclusion: “Red Complex” periodontal pathogens inhibited the osteogenic differentiation capacity of hPDLCs.

Key words: periodontal ligament cells, periodontal pathogens, Red Complex, osteogenic differentiation