The relationship between ras protein and odontogenic lesions
Relação entre a proteína ras e as lesões odontogênicas
MetadataShow full item record
Odontogenic lesions comprise a diverse group of lesions which usually affect the oral cavity and are derived from embryonic dental tissues. Their mechanisms of development and progression are still not fully known, but there are some studies investigating the participation of specific proteins in these events. Objective: The objective of this study was to investigate the expression of KRAS protein in these pathologies and also to associate the protein expression with the behaviour of the lesions studied. Material and Methods: Immunohistochemical analysis of 20 cases was performed for each one of the following lesions: dentigerous cyst (DC), odontogenic keratocyst (OKC) and ameloblastoma (AB), totalising 60 cases to be analysed. Results: By considering the KRAS immunoexpression, there were 11 cases (55%) presenting overexpression (score 3) in the basal layer of DC and 13 cases (65%) in the suprabasal layer. A similar finding was observed in the analysis of OKC, with eight cases (40%) in the suprabasal layer (score 3) and only five cases (25%) in the basal layer. As for AB, the overexpression was observed in six cases (30%). Conclusion: Therefore, it one suggests that the KRAS expression in odontogenic lesions is inversely proportional to their aggressive behaviour.
How to cite this document
Showing items related by title, author, creator and subject.
Pinho, Sheila Zambello de ; Oliveira, José Brás Barreto de ; Gazola, Rodrigo José Cristiano ; Mazotti, Adriano César ; Molero, Camila Schimite ; Mendes, Carolina Borghi ; Mello, Denise Fernandes de ; Marques, Emilia de Mendonça Rosa ; Talamoni, Jandira Liria Biscalquini ; Silva, José Humberto Dias da et al. (Coleção PROGRAD (UNESP), 2011) [Livro]
Pinho, Sheila Zambello de ; Oliveira, José Brás Barreto de ; Pontes, Sueli Rodrigues ; Almeida, Djanira Soares de Oliveira e ; Godoy, Kathya Maria Ayres de ; Rosa, Claudia de Souza ; Nunes, Julianus Araújo ; Salvador, Sérgio Azevedo ; David, Célia Maria ; Vilche Peña, Angel Fidel et al. (Coleção PROGRAD (UNESP), 2011) [Livro]
Pinho, Sheila Zambello de ; Spazziani, Maria de Lourdes ; Mendonça, Sueli Guadelupe de Lima ; Rubo, Elisabete Aparecida Andrello ; Villarreal, Dalva Maria de Oliveira ; Duarte, Camila ; Okamoto, Mary Yoko ; Souza, Thais R. ; Garms, Gilza Maria Zauhy ; Marin, Fátima Aparecida Dias Gomes et al. (Coleção PROGRAD (UNESP), 2012) [Livro]