Phosphotyrosine Antibodies Preferentially React with Basal Epithelial Cells in the Dog Prostate

Autor: Alcide Chapdelaine, Simone Chevalier, Louis R. Begin
Rok vydání: 1996
Předmět:
Zdroj: Journal of Urology. 155:386-390
ISSN: 1527-3792
0022-5347
DOI: 10.1016/s0022-5347(01)66665-5
Popis: Purpose: Considering the hypothesis that androgen-independent but growth factor dependent epithelial cell division may be important in the development and progression of prostate cancer and that protein tyrosine kinases and phosphotyrosine protein phosphatases are key enzymes modulating the levels of specific phosphotyrosylated proteins implicated in several growth factor regulated signal transduction pathways, our aim was to study the cellular distribution of phosphotyrosine proteins in normal and hyperplastic dog prostates as well as in those of castrated dogs supplemented with either androgens or estrogens in order to modify the relative proportion of basal versus secretory epithelial cells.Materials and Methods: Following the determination of optimal conditions to specifically detect phosphotyrosine proteins by a rabbit polyclonal antibody directed against phosphotyrosine, immunohistochemistry was performed on prostate tissue sections from these experimental animals. In addition to morphologic...
Databáze: OpenAIRE