华西口腔医学杂志

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骨形成蛋白-2、4在胎鼠牙胚蕾状期的表达

张健,田卫东,刘磊,李声伟,汤炜   

  1. 610041 四川大学华西口腔医学院(张 健现在南通医学院附属医院口腔科)
  • 收稿日期:2001-12-25 修回日期:2001-12-25 出版日期:2001-12-20 发布日期:2001-12-20

Expression of Bone Morphogenetic Protein (BMP)-2,4 in Mouse Embryonic Tooth During the Bud Stage

Zhang Jian, Tian Weidong, Liu Lei, et al   

  1. College of Stomatology, West China University of MedicalSciences
  • Received:2001-12-25 Revised:2001-12-25 Online:2001-12-20 Published:2001-12-20

摘要:

目的:观察生长因子骨形成蛋白-2、4(BMP-2、4)在牙胚蕾状期的表达,探讨二者的作用及其关系,为牙组织工程研究打下基础。方法:选取14 d SD胎鼠下颌第一磨牙牙胚做石蜡切片,HE染色光镜观察证实牙胚处于鼠胚胎第14天蕾状期后,则取其前后2~3张切片用免疫组化LsAB法检测BMP-2、4在鼠牙胚蕾状期的分布与表达。结果:BMP-4在蕾状期牙上皮和牙间质均有表达;BMP-2在牙上皮有表达而在牙间质表达不明显。结论:BMP-2、4在牙胚蕾状期表达模式相似,但BMP-2的表达比BMP-4晚,反映二者作用各有侧重又相互联系。

关键词: 骨形成蛋白, 鼠牙胚, 蕾状期, 生长因子, 免疫组化

Abstract:

Objective:The purpose of this paperwas to investigate the distributions of bone morphogenic protein (BMP)-2, 4 in the de- veloping molars of mice during the bud stage and, the functional relationship between BMP-2 and BMP-4.Methods:The distribu- tion of BMP-2, 4 were examined in developing mouse molars on the 14th (the 14th embryonic day), using monoclonal antibodies and immunohistochemistry methods.Results:BMP-2, 4 were detected both in the epithelial cells and dental mesenchyme cells. Conclusion:There is a similar distribution pattern between BMP-2 and BMP-4. Therefore, there may be a functional relationship between BMP-2 and BMP-4 during the development of mouse embryonic teeth in the bud stage.

Key words: tooth germ, bone morphogenetic protein_2, bone morphogenetic protein_4, budstage, immunohistochemistry