Search results for "METIOLLOPROTEINASES"

EXPRESSION OF METIOLLOPROTEINASES ( MMP2-MMP9 ) AND CYCLOOXIGENASES ( COX1-COX2 ) IN SALIVARY GLAND TUMORS

2011

Background Salivary neoplasms of the major salivary glands are uncommon: the annual incidence rates in the world vary between greater than 0.05 and less than 2 per 100,000. Most salivary gland tumours are benign and they represent an histological heterogeneous group with the greatest diversity of morphological and cellular features, in fact, these tumours are characterized by an extremely varied histomorphological phenotype due to combinations of different epitheliomorphic and mesenchymomorphic features. The histogenesis is uncertain but the bicellular theory of origin has been accepted and states that malignant transformation of reserve cell from either the intercalated or excretory duct a…