[Prognostic value of E-cadherina, beta catenin, Ki-67 antigen and p53 protein in the superficial bladder tumors].

INTRODUCTION The natural history of the superficial carcinoma of bladder is characterized by his high rate of recurrence and by the aptitude to progress to higher stages. We are going to investigate the capacity of prediction for tumor recurrence of protein p53, antigen Ki-67, E Cadherin and Beta Catenin MATERIAL AND METHOD 88 T1 tumors with a median of free time of disease of 36 months. 58% of the serie has received prophylactic treatment with BCG 81 mg. weekly for six weeks. Cut-oof level for For P53 and Ki-67 is 10 % of stained cells. For E Cadherin and Beta Catenin we have established two groups: one with the values 0-4 (negative), and other one with the values 5-8 (positive). RESULTS Recurrence rate 31%, stage progression 3%. Ki-67 expression is correlated with grade (p .002) and lymphatic permeation (p .028). Multiplicity is correlated with lack( of Cadherin and Catenin's expression. Only Ki-67 expression (p .049) and lack of Beta Catenin expression (p .039) reach statistical significance. In multivariant study only lack of Beta Catenin's expression shows independent recurrence value (p .049; O.R: 2,4-6,9) CONCLUSIONS The most useful prognmostic markers are Ki-67 and Catenina Beta Only Beta Catenin Beta shows independent value for tumour recurrence. Tumors wich lack expression for Catenin B or Cadherin E have lower recurrence free time.