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
Expression of MMP-2 and MMP-3 in Periodontal Tissues of Rat Periodontitis Model
作者:赵筱芩;孟姝;吴亚菲;陈宇;葛颂
Author:ZHAO Xiao-qin1, MENG Shu1, WU Ya-fei2, CHEN Yu3, GE Song1
收稿日期:2006-06-25 年卷(期)页码:2006,24(03):202-
期刊名称:华西口腔医学杂志
Journal Name:West China Journal of Stomatology
关键字:基质金属蛋白酶,牙周炎,免疫组织化学,动物模型,
Key words:matrix metalloproteinases,periodontitis,immunohistochemistry,animal model,
基金项目:
四川省杰出青年基金资助项目(02SQ03)
中文摘要
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。
英文摘要
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.
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