口腔医学研究 ›› 2016, Vol. 32 ›› Issue (5): 474-477.DOI: 10.13701/j.cnki.kqyxyj.2016.05.012

• 临床研究论著 • 上一篇    下一篇

慢性牙周炎患者和健康人牙龈成纤维细胞细胞活性和凋亡的比较研究

董允允1 ,宋立婷1 ,朱东望2 ,邓嘉胤1 ,蒋少云1*   

  1. 1. 天津医科大学口腔医院牙周科 天津 300070;
    2. 天津医科大学口腔医院口腔颌面外科 天津 300070
  • 收稿日期:2015-10-22 出版日期:2016-05-26 发布日期:2016-05-26
  • 通讯作者: 蒋少云,E-mail:jiangshaoyun11@126.com
  • 作者简介:董允允(1990~ ),女,山东人,硕士在读,主要从事牙周病病因学研究。
  • 基金资助:
    国家自然科学基金(编号:81100758)

Comparison of Viability and Apoptosis of Gingival Fibroblasts in the Patients with Chronic Periodontitis and Healthy People.

DONG Yun-yun1, SONG Li-ting1, ZHU Dong-wang2, DENG Jia-yin1, JIANG Shao-yun1*.   

  1. 1. Department of Periodontics, Hospital of Stomatology, Tianjin Medical University,Tianjin 300070, China;
    2. Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, Tianjin Medical University, Tianjin300070, China
  • Received:2015-10-22 Online:2016-05-26 Published:2016-05-26

摘要: 目的:探索慢性牙周炎患者和健康人牙龈成纤维细胞(HGFs)细胞活性和凋亡之间的差异性,为阐明牙周炎的易感性提供实验依据。方法:收集慢性牙周炎患者和健康人的健康牙龈,进行体外培养获得HGFs,采用MTT法比较两组细胞的细胞活性,实时荧光定量PCR检测抗凋亡基因Bcl-2和促凋亡基因Bax在两种细胞中的表达水平及其比值。结果:与健康组相比,慢性牙周炎组HGFs细胞活性在培养4 d后明显下降(P<0.05),而且在体外培养2 d、4 d细胞中Bcl-2/Bax的比值下降(P<0.05),具有时间依赖性。结论:慢性牙周炎患者HGFs细胞活性下降,细胞凋亡增强,从细胞水平说明其存在牙周炎易感性。

关键词: 慢性牙周炎, 细胞活性, 细胞凋亡, Bcl-2, Bax

Abstract: Objective: To investigate the differences in the proliferation and apoptosis of human gingival fibroblasts (HGFs) between patients with chronic periodontitis and healthy people and provide experimental evidence for the susceptibility of chronic periodontitis. Methods: HGFs were obtained from patients with chronic periodontitis and healthy people and cultured in vitro. Cell activity between two groups was detected by MTT assay. Real-time PCR was used to detect the expression levels of anti-apoptotic gene Bcl-2 and pro-apoptotic gene Bax in HGFs from the two groups, and the ratio of Bcl-2 to Bax was compared. Results: Compared with the healthy group, the cell activity of the HGFs in chronic periodontitis group decreased significantly after 4 days culture (P<0.05). The ratio of Bcl-2/Bax significantly decreased after 2 days and 4 days in vitro in a time-dependent manner (P<0.05). Conclusion: HGFs cells from patients with chronic periodontitis show low cell activity and high cell apoptosis, which indicates the susceptibility of periodontitis.

中图分类号: