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Braz. j. med. biol. res ; 32(3): 283-8, Mar. 1999.
Artigo em Inglês | LILACS | ID: lil-230454

RESUMO

The surgical specimens from 51 men submitted to radical prostatectomy for localized prostate cancer were examined by immunohistochemistry using proliferation cell nuclear antigen (PCNA) monoclonal antibody to evaluate the proliferative index (PI). The relationship between PI, biological variables and p53 protein expression was evaluated by immunohistochemistry. PI was low in invasive localized prostate carcinoma (mean, 12.4percent) and the incidence of PCNA-positive cells was significantly higher in tumors with p53 expression (P = 0.0226). There was no statistical difference in PCNA values when biological parameters such as Gleason score, tumor volume, extraprostatic involvement, seminal vesicle infiltration or lymph node metastasis were considered. We conclude that proliferative activity is usually low in prostate carcinoma but is correlated with p53 immune staining, indicating that p53 is important in cell cycle control in this neoplasm


Assuntos
Humanos , Masculino , Pessoa de Meia-Idade , Carcinoma/patologia , Antígeno Nuclear de Célula em Proliferação , Neoplasias da Próstata/patologia , Anticorpos Monoclonais , Genes p53 , Imuno-Histoquímica , Estadiamento de Neoplasias
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