Abstract
Only few studies have evaluated the usefulness of the GLUT1 and p53 status of pancreatobiliary tract carcinomas in revealing tumorigenesis. We studied GLUT1 and p53 immunoexpression in a total of 355 cases of the pancreatobiliary carcinoma to determine the biological significance of GLUT1 and p53 expression. Positive expression of GLUT1 was identified in 38 out of 67 (57.7%) ampulla of Vater (AV) carcinomas, in 27 out of 52 (51.8%) pancreatic (PA) carcinomas, in 38 out of 121 (31.4%) extrahepatic bile duct (EBD) carcinomas, and in 53 out of 115 (46.5%) gallbladder (GB) carcinomas. GLUT1 expression in pancreatobiliary carcinomas showed some positive correlation with histological grade, T stage, N stage, TNM stage, and lymphatic invasion. However, p53 expression showed no correlation with any prognostic factors. In the Kaplan–Meier test, positive GLUT1 expression was a poor prognostic factor in the pancreatobiliary tract cancers; however, only GB cancers were statistically significant ( P=0.002). Our results suggest that GLUT1 expression in the AV, EBD, and GB carcinomas is associated with some prognostic factors, and GLUT1 expression is associated with a worse prognosis in the patients with GB carcinomas.
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