华西口腔医学杂志

• 基础研究 • 上一篇    下一篇

基质金属蛋白酶-2和基质金属蛋白酶-3在大鼠牙周炎模型中的表达

赵筱芩1,孟  姝1,吴亚菲2,陈  宇3,葛  颂1   

  1.  1.口腔生物医学工程教育部重点实验室,四川大学;2.四川大学华西口腔医院  牙周科;3.病理科,四川  成都 610041
  • 收稿日期:2006-06-25 修回日期:2006-06-25 出版日期:2006-06-20 发布日期:2006-06-20
  • 通讯作者: 吴亚菲,Tel:028-85501471
  • 作者简介:赵筱芩(1976-),女,四川人,硕士,现在上海市安图
  • 基金资助:

    四川省杰出青年基金资助项目(02SQ03)

Expression of MMP-2 and MMP-3 in Periodontal Tissues of Rat Periodontitis Model

ZHAO Xiao-qin1, MENG Shu1, WU Ya-fei2, CHEN Yu3, GE Song1   

  1. 1. Key. Laboratory of Oral Biomedical Engineering Ministry of  Education, Sichuan University, Chengdu 610041, China; 2. Dept. of Periodontology, West China College of Stomatology, Sichuan University, Chengdu 610041, China; 3. Dept. of Pathology, West China College of Stomatology, Sichuan University, Chengdu 610041, China
  • Received:2006-06-25 Revised:2006-06-25 Online:2006-06-20 Published:2006-06-20

摘要:

目的 研究不同时期、不同严重程度的大鼠牙周炎模型中基质金属蛋白酶-2(MMP-2)和基质金属蛋白酶-3(MMP-3)的表达和分布特征,探讨二者在牙周炎发生发展中的作用。方法 对大鼠牙周组织标本的石蜡切片进行MMP-2和MMP-3的免疫组化染色,并进行图像定量分析。结果 MMP-2和MMP-3在牙龈炎和牙周炎的牙龈上皮中呈强阳性表达,在牙周炎的牙周组织中,主要在牙周膜成纤维细胞、破骨细胞等细胞中呈强阳性表达。MMP-2和MMP-3的变化趋势为在健康牙周组织中呈弱阳性表达,急性龈炎和急性牙周炎中呈强阳性表达,到慢性牙周炎时期,表达较急性期有所降低。结论 MMP-2和MMP-3在牙周炎症组织中,随着炎症进程呈现不同特征的表达,可能直接参与牙周组织的炎性破坏。

关键词: 基质金属蛋白酶, 牙周炎, 免疫组织化学, 动物模型

Abstract:

Objective To investigate the expression of MMP-2 and MMP-3 in periodontal tissues of rat peri-odontitis model at different stages of inflammation of varied severity. Methods The periodontal tissues were im-munohistochemically stained by antibody of MMP-2 and MMP-3. Results MMP-2 and MMP-3 were both strongly positive in gingival epithelia and fibroblasts in periodontal ligament in rat periodontitis model. And chronic periodon-titis showed lower expression of MMP-2 and MMP-3 than that of acute gingivitis and acute peridontitis. Conclusion The expression of MMP-2 and MMP-3 varies in different stage of periodontitis. MMP-2 and MMP-3 may play an important role in development of periodontitis.

Key words:  matrix metalloproteinases, periodontitis, immunohistochemistry, animal model