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- W892296947 endingPage "84" @default.
- W892296947 startingPage "84" @default.
- W892296947 abstract "The canine mast cell tumor (MCT) is a malignant neoplasia with great importance on the clinical practice due to its aggressive behavior and high frequency. The COX-2 and the PGE2 have been associated to the tumor initiation, promotion and progression, and its main mechanisms involve the stimuli of tumor angiogenesis and the inhibition of apoptosis. The VEGF is a powerful inductor of angiogenesis and the caspase-3 is responsible for most part of the apoptotic effects. The understanding of the mechanism by which the COX-2 stimulates the tumor progression in the mast tumor cells provides an extension through the biological behavior of this neoplasia and leads to a better and effective treatment. The present work was a retrospective study in 24 cases of MCT. The neoplasias were classified according to Patnaik et al. (1984) and the expression of COX-2, PGE2, VEGF and caspase-3 were evaluated using the immunohistochemistry technique. The expression of COX-2 was correlated to the expression of VEGF, PGE2 and caspase-3 in the different histopathologic grades. Caspase-3 immunolabeling was lower in the undifferentiated tumors compared to the more differentiated ones. Comparing the COX-2 expression data to the other markers it was observed a positive correlation between COX-2 and PGE2, COX-2 and VEGF in grade II and III. Correlation between COX-2 and caspase-3 was detected only on grade III." @default.
- W892296947 created "2016-06-24" @default.
- W892296947 creator A5013494625 @default.
- W892296947 date "2008-03-05" @default.
- W892296947 modified "2023-09-28" @default.
- W892296947 title "IMUNOMARCAÇÃO DE COX 2, PGE-2, VEGF E CASPASE 3 EM MASTOCITOMAS CUTÂNEOS CANINOS" @default.
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