Abstract:
OBJECTIVES:To investigate the frequency and clinicopathologic correlates of ErbB1, ErbB2, and ErbB3 receptor expression in patients with upper urothelial carcinoma. METHODS:Immunohistochemical staining for ErbB1, ErbB2, and ErbB3 was done with serial sections from archival specimens of 94 patients who underwent nephroureterectomy plus bladder cuff resection for urothelial carcinoma of the renal pelvis and ureter (median follow-up 40 months, range 1 to 177). The correlates between ErbB receptor expression and clinical outcome in terms of recurrence, progression, disease-free survival, and overall survival were analyzed by Kaplan-Meier plots, with the log-rank test and Cox proportional hazards model. RESULTS:ErbB1, ErbB2, and ErbB3 expression was present in 9 (9.5%), 13 (13.8%), and 26 (27.7%) tumors, respectively. Thirty-seven patients (39.4 %) had at least one receptor expressed and eight (8.5%) had coexpression of two or three receptors. ErbB2 expression was significantly associated with tumor invasiveness (P = 0.03), and ErbB1 and ErbB3 expression was not. The incidence of subsequent tumor recurrence in the urinary bladder correlated significantly with ureteral tumor involvement and ErbB2 expression (P = 0.04 and P = 0.04, respectively). On univariate and multivariate analyses, tumor staging and ErbB2 expression were independent predictors of disease progression (P = 0.01 and P = 0.01, respectively), disease-free survival (P = 0.02 and P = 0.002, respectively), and overall survival (P = 0.01 and P = 0.02, respectively). CONCLUSIONS:ErbB2 expression predicts for disease progression and disease-related survival in upper urothelial carcinoma.
journal_name
Urologyjournal_title
Urologyauthors
Tsai YS,Tzai TS,Chow NH,Wu CLdoi
10.1016/j.urology.2005.06.117subject
Has Abstractpub_date
2005-12-01 00:00:00pages
1197-202issue
6eissn
0090-4295issn
1527-9995pii
S0090-4295(05)00926-Xjournal_volume
66pub_type
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