Immunohistochemical demonstration of bone morphogenetic protein in odontogenic tumors.
The aim of the present study was to describe the expression and distribution of bone morphogenetic protein (BMP) in odontogenic tumors by immunohistochemistry using monoclonal antibody against bovine BMP (BMPMcAb). Eight types of odontogenic tumors (44 cases), including ameloblastoma (20 cases), cementifying fibroma (8 cases), benign cementoblastoma (5 cases), dentinoma (3 cases), compound odontoma (2 cases), adenomatoid odontogenic tumor (2 cases), calcifying epithelial odontogenic tumor (2 cases) and odontogenic fibroma (2 cases), were studied. The results showed that, according to the immunostaining pattern of BMPMcAb, tumors could be classified into two types: all cementifying fibromas, benign cementoblastomas, dentinomas, odontogenic fibromas, and compound odontomas demonstrated a positive reaction, whereas all ameloblastomas, adenomatoid odontogenic tumors, and calcifying epithelial odontogenic tumors were negative. BMPMcAb-positive odontogenic tumors were those tumors with formation of enamel, dentin, cementum or bone. Therefore, BMP might play an important role in the formation of calcified dental tissues and the development of odontogenic tumors contaning such tissues.[1]References
- Immunohistochemical demonstration of bone morphogenetic protein in odontogenic tumors. Gao, Y.H., Yang, L.J., Yamaguchi, A. J. Oral Pathol. Med. (1997) [Pubmed]
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