CYR61, a cellular proliferation marker in dogs with prostatic disease
2006
Oliveira, K.S. | Araujo, E.G. | Menezes, L.B. | Damasceno, A.D. | Fioravanti, M.C.S. | Amorim, R.L.
The life expectancy of dogs is increasing and is associated with a greater frequency of age-related disease, including that of the prostate gland. A marker of cell proliferation, CYR61, may be detected in a number of conditions in humans, including hyperplasia and neoplasia. The objective of the present study was to investigate the degree of CYR61 expression in a number of different prostate diseases in dogs in order to understand the potential of this marker for diagnosis of prostatic disease. Immunohistochemistry with a CYR61 antibody was performed on prostatic tissue from 22 dogs with different diseases. Intense stromal staining was observed in cases of prostatic dysplasia and benign prostate hyperplasia. In contrast, CYR61 staining was very intense in alveolar epithelial cells in cases of epithelial benign prostate hyperplasia and one case of adenocarcinoma. An obvious CYR61 staining pattern was absent in cases of prostatitis. In conclusion, CYR61 may be a useful marker of cell proliferation in a number of prostatic pathologies, although further studies of normal tissue are warranted.
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