[Prognostic value of E-cadherina, beta catenin, Ki-67 antigen and p53 protein in the superficial bladder tumors]. / Cadherina E, catenina beta, antígeno Ki-67 y proteína p53 en el pronóstico de la recidiva tumoral en los tumores superficiales de vejiga T1.

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.

Cadherina E, Catenina Beta, Antígeno Ki-67 y proteína p53 en el pronóstico de la recidiva tumoral en los tumores superficiales de vejiga T1 / Prognostic value of E-Cadherina, Beta Catenin, K1, Ki-67 antigen and p53 protein in the superficial bladder tumors

Introducción: La historia natural del carcinoma superficial de vejiga (CSV) se caracteriza por su alta tasa de recidivas y por la capacidad de progresar a estadios infiltrantes. Vamos a investigar la capacidad de predicción de recidiva tumoral de la proteína p53, el antígeno Ki-67 y las moléculas de adhesión celular Cadherina E y Catenina Beta Material y método: 88 tumores T1 con una mediana de tiempo libre de enfermedad de 36 meses. Han recibido tratamiento profiláctico con BCG 81 mg. semanal durante seis semanas el 58% de la serie. Para p53 y Ki-67 se estableció el nivel de 10% de células teñidas para considerar positivo el tumor. Para Cadherina E y Catenina se han establecido dos grupos: uno con los valores 0-4 (negativo), y otro con los valores 5-8 (positivo). Resultados: Han recidivado el 31% de los tumores y progresado a estadio infiltrante el 3% La expresión de Ki-67 se correlaciona con grado (p ,002) y permeación linfática (p ,028). La multiplicidad tumoral con la falta de expresión de Cadherina E y Catenina Beta. Sólo la expresión de Ki-67 (p .049) y la de Catenina Beta (p .039) alcanzan significación estadística. En el estudio multivariante sólo la falta de expresión de Catenina Beta muestra tener valor pronóstico independiente para recidiva (p .049; O.R : 2,4-6,9) Conclusiones: Los marcadores más útiles son Ki-67 y Catenina Beta. Sólo la Catenina Beta muestra un valor independiente para recidiva tumoral. Los tumores que no expresan Catenina Beta o Cadherina E tienen un menor tiempo libre de recidiva

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