Prognostic value of amplification of c-erb-B2 in bladder carcinoma

Autor: U, Lönn, S, Lönn, S, Friberg, B, Nilsson, C, Silfverswärd, B, Stenkvist
Rok vydání: 1995
Předmět:
Zdroj: Clinical cancer research : an official journal of the American Association for Cancer Research. 1(10)
ISSN: 1078-0432
Popis: Amplification of c-erb-B2 is examined in patients with transitional cell bladder carcinoma. In a pilot study we found that the amplification correlated with high tumor grade. Tumor grade is a known prognostic factor. Therefore, we next examined the prognostic value of c-erb-B2 amplification in patients with16 years of clinical follow-up. The gene copy number was determined, using semiquantitative PCR, in archival formalin-fixed tissues. Twenty-three percent (37/163 patients) showed the amplification. The amplification correlated with grade and stage. Moreover, we found that tumor grade (P0.001) and c-erb-B2 amplification (P0.001) showed prognostic information for survival. Patients with grade 3 tumors and concomitant c-erb-B2 amplification showed the worst prognosis. Multivariate analysis indicates that grade and c-erb-B2 amplification are independent prognostic factors.
Databáze: OpenAIRE