[Comparative study of the expression of p53, Ki-67, bcl-2 and CK20 in superficial transitional carcinoma of the bladder: correlation with recurrence, histological grade, and clinical stage].
OBJECTIVE
We examined the presence of p53, Ki-67, bcl-2 and CK20, as detected by immunohistochemistry, and correlated with the classic variables (grade, stage and recurrence).


METHODS
The authors evaluated 57 superficial transitional cell carcinomas. Biopsy specimens examined included non recurrent transitional cell carcinomas (n = 36) and recurrent transitional cell carcinomas (n = 21). Association of bcl-2, p53, Ki-67 y CK20 index immunoreactivity with tumor grade, clinical stage and tumor recurrence was examined.


RESULTS
Ki-67 and p53 expression were related to the degree of differentiation and recurrence of the disease. bcl-2 and CK20 were not correlated with grade, stage and recurrence of the disease.


CONCLUSIONS
Positivity for Ki-67 and p53 increase with grade of the disease. P53 and Ki-67 are predictors of tumor recurrence for patients with superficial transitional cell carcinoma.
Servicio de Anatomía Patológica, Centro Médico POVISA, Vigo, Pontevedra.
P
P
San Miguel Fraile
I
I
Antón Badiola
J A
JA
Ortiz Rey
C
C
Alvarez Alvarez
A
A
Fernández Costas
M
M
Lago Fernández
E
E
Pelaez Boismorand
E
E
Zungri Telo
A
A
De La Fuente Buceta
D000368:Aged; D000369:Aged, 80 and over; D014408:Biomarkers, Tumor / Q000032:analysis*; D002295:Carcinoma, Transitional Cell / Q000737:chemistry* / Q000473:pathology; D005260:Female; D006801:Humans; D007381:Intermediate Filament Proteins / Q000032:analysis; D053554:Keratin-20; D019394:Ki-67 Antigen / Q000032:analysis; D008297:Male; D008875:Middle Aged; D009363:Neoplasm Proteins / Q000032:analysis; D009364:Neoplasm Recurrence, Local; D009367:Neoplasm Staging; D011237:Predictive Value of Tests; D019253:Proto-Oncogene Proteins c-bcl-2 / Q000032:analysis; D012189:Retrospective Studies; D016159:Tumor Suppressor Protein p53 / Q000032:analysis; D001749:Urinary Bladder Neoplasms / Q000737:chemistry* / Q000473:pathology
D014408:Biomarkers, Tumor; D007381:Intermediate Filament Proteins; C507499:KRT20 protein, human; D053554:Keratin-20; D019394:Ki-67 Antigen; D009363:Neoplasm Proteins; D019253:Proto-Oncogene Proteins c-bcl-2; D016159:Tumor Suppressor Protein p53