Estudo da angiogenese em carcinomas salivares com e sem diferenciação mioepitelial / Angiogenesis in salivary carcinomas with and without myoepithelial differentiation
AUTOR(ES)
Ana Flavia de Mattos Costa
DATA DE PUBLICAÇÃO
2009
RESUMO
To investigate whether salivary carcinomas with and without myoepithelial differentiation could present differences regarding degree of angiogenesis, we compared tumor vascularization between adenoid cystic (31 cases) and epithelial- myoepithelial carcinomas (14) versus mucoepidermoid (37) carcinoma. The expression of peroxiredoxin I was also studied to verify the potential relationship between cellular metabolism and microvascular density. Microvascular density for CD34 and CD105 were significantly lower in carcinomas with myoepithelial differentiation. However, no correlation was found between degree of angiogenesis and amounts of myoepithelial cells. High-grade peroxiredoxin I expression was found in 73.7% of mucoepidermoid carcinomas whereas 85.1 of carcinomas with myoepithelial differentiation presented low-grade expression. In conclusion, carcinomas with myoepithelial differentiation, regardless of the amounts of myoepithelial cells, are associated to a significantly lower vascular density. The reasons for this lower angiogenic activity remain to be determined, but could be related to metabolic characteristics of the cancer cells
ASSUNTO(S)
immunohistochemistry carcinoma mucoepidermoide glandulas salivares carcinoma adenoide cistico imunoistoquimica angiogenesis salivary glands angiogenese adenoid cystic carcinoma mucoepidermoid carcinoma
ACESSO AO ARTIGO
http://libdigi.unicamp.br/document/?code=000472412Documentos Relacionados
- Salivary neoplasias with myoepithelial differentiation : immunoexpression study of the CD10 (CALLA/NEP 24.11) and podoplanin (D2-40)
- Immunoexpression of c-erbB-2 and p53 in benign and malignant salivary neoplasms with myoepithelial differentiation.
- Estudo comparativo da angiogenese, expressão de p53 e indice proliferativo em lesões ceratoacantoma-similes, com enfase na regressão clinica
- Expression of PLUNC family protein in major salivary gland of the autopsied patients with advanced AIDS and without AIDS
- Expression of Ki-67 protein and glycoprotein MUC1 in carcinomas of minor salivary gland mucoepidermoid