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Journal Article
Research Support, Non-U.S. Gov't
Role of fibroblast growth factor in squamous cell carcinoma of the bladder: prognostic biomarker and potential therapeutic target.
Urologic Oncology 2015 March
BACKGROUND: We evaluated the association of fibroblast growth factor (FGF2) expression with pathologic features and clinical outcomes of squamous cell carcinoma (SCC) of the urinary bladder.
METHODS: Immunohistochemistry of FGF2 was performed on radical cystectomy specimens with pure SCC from 1997 to 2003. The relationship between FGF2 and pathologic parameters and oncological outcome was assessed.
RESULTS: The study included 151 patients with SCC (98 men) with a median age of 52 years (range: 36-74 y). Schistosomal infection was found in 81% of patients. Pathologic category was T2 and T3 in 88% of patients and the grade was low in>50%. Lymph node invasion and lymphovascular invasion were found in 30.5% and 16%. Altered FGF2 was associated with tumor grade (P = 0.014), lymph node invasion, and lymphovascular invasion (P = 0.042). Altered FGF2 was associated with both disease recurrence and cancer-specific mortality (P≤0.001) in Kaplan-Meier analyses and was an independent predictor of cancer recurrence (hazard ratio = 2.561, P = 0. 009) and cancer-specific mortality (hazard ratio = 2.679, P = 0. 033) in multivariate Cox regression analyses. Adding FGF2 to a model including standard clinicopathologic prognostics (pathologic T category, lymph node status, and grade) showed a significant improvement (6%) in accuracy of prediction poor oncological outcome.
CONCLUSIONS: FGF2 overexpression is associated with aggressive pathologic features and worse outcomes after radical cystectomy for SCC, suggesting a good prognostic and possible therapeutic role.
METHODS: Immunohistochemistry of FGF2 was performed on radical cystectomy specimens with pure SCC from 1997 to 2003. The relationship between FGF2 and pathologic parameters and oncological outcome was assessed.
RESULTS: The study included 151 patients with SCC (98 men) with a median age of 52 years (range: 36-74 y). Schistosomal infection was found in 81% of patients. Pathologic category was T2 and T3 in 88% of patients and the grade was low in>50%. Lymph node invasion and lymphovascular invasion were found in 30.5% and 16%. Altered FGF2 was associated with tumor grade (P = 0.014), lymph node invasion, and lymphovascular invasion (P = 0.042). Altered FGF2 was associated with both disease recurrence and cancer-specific mortality (P≤0.001) in Kaplan-Meier analyses and was an independent predictor of cancer recurrence (hazard ratio = 2.561, P = 0. 009) and cancer-specific mortality (hazard ratio = 2.679, P = 0. 033) in multivariate Cox regression analyses. Adding FGF2 to a model including standard clinicopathologic prognostics (pathologic T category, lymph node status, and grade) showed a significant improvement (6%) in accuracy of prediction poor oncological outcome.
CONCLUSIONS: FGF2 overexpression is associated with aggressive pathologic features and worse outcomes after radical cystectomy for SCC, suggesting a good prognostic and possible therapeutic role.
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