华西口腔医学杂志

• 基础研究 • 上一篇    下一篇

牙龈卟啉单胞菌感染对大鼠血管平滑肌细胞细胞间黏附分子-1表达的影响

代佳音1   林江1   毕良佳1   焦丽宁1   王强2   

  1. 1.哈尔滨医科大学附属第四医院口腔科;2.哈尔滨市口腔医院修复科,哈尔滨 150001
  • 收稿日期:2013-04-24 修回日期:2014-01-06 出版日期:2014-04-01 发布日期:2014-04-01
  • 通讯作者: 林江,主任医师,博士,E-mail:kelvinperio@163.com
  • 作者简介:代佳音,住院医师,硕士,E-mail:djy1234567890@163.com
  • 基金资助:

    黑龙江省青年科学基金资助项目(QC2009C103);黑龙江省教育厅科学技术研究基金资助项目(11511230)

Effects of Porphyromonas gingivalis infection on intercellular adhesion molecule-1 expression in rat vascular smooth muscle cells

Dai Jiayin1, Lin Jiang1, Bi Liangjia1, Jiao Lining1, Wang Qiang2.     

  1. 1. Dept. of Stomatology, The Fourth Affi-liated Hospital, Harbin Medical University, Harbin 150001, China; 2. Dept. of Prosthodontics, Harbin Stomatology Hospital, Harbin 150001, China
  • Received:2013-04-24 Revised:2014-01-06 Online:2014-04-01 Published:2014-04-01

摘要:

目的   观察牙龈卟啉单胞菌ATCC 33277感染对大鼠血管平滑肌细胞(VSMC)细胞间黏附分子-1(ICAM-1)表达的影响。方法   建立体外牙龈卟啉单胞菌感染大鼠VSMC模型,逆转录-聚合酶链反应(RT-PCR)检测ICAM-1基因的表达。结果   牙龈卟啉单胞菌感染VSMC 8、16、24 h后,ICAM-1表达明显增多,与空白对照组比较,差异有统计学意义(P<0.05)。感染16 h达高峰,感染8 h与感染16、24 h比较,差异有统计学意义(P<0.05)。结论   牙龈卟啉单胞菌感染可引起VSMC ICAM-1高表达,这提示牙周致病菌可能参与血管壁的炎症反应,在动脉粥样硬化的发生、发展中有重要的意义。

关键词: 牙龈卟啉单胞菌, 血管平滑肌细胞, 动脉粥样硬化, 细胞间黏附分子-1

Abstract:

Objective   To observe the effects of Porphyromonas gingivalis (P. gingivalis) ATCC 33277 infection on expression of intercellular adhesion molecule-1 (ICAM-1) in rat vascular smooth muscle cells(VSMC). Methods   An infection model of rat VSMC invaded by P. gingivalis was established in vitro. The mRNA of ICAM-1 was measured through reverse transcription-polymerase chain reaction (RT-PCR). Results   Compared with the control group, an apparent and statistically significant increase in expression of ICAM-1 mRNA was observed after 8, 16, and 24 h in P. gingivals-infected rat VSMC (P<0.05). The expression reached its peak at 16 h. Statistically significant differences were observed in the 8 h group and in the other two experimental groups (P<0.05). Conclusion   Infection of P. gingivals in rat VSMC can cause increased expres-sion of ICAM-1, which may have an important function in the progression of atherosclerosis.

Key words: Porphyromonas gingivalis, vascular smooth muscle cells, atherosclerosis, intercellular adhesion molecule-1