EphB1 and Ephrin-B, new potential biomarkers for squamous cell/adenosquamous carcinomas and adenocarcinomas of the gallbladder

Asian Pac J Cancer Prev. 2014;15(3):1441-6. doi: 10.7314/apjcp.2014.15.3.1441.

Abstract

Squamous cell/adenosquamous carcinoma (SC/ASC) of the gallbladder are rare tumors and there are few clinical reports in the literature. Herein we report our clinical experience with 46 patients with SC/ASC and 80 with adenocarcinoma (AC). Expression of EphB1 and Ephrin-B in each tumor was determined using immunohistochemical methods for determination of correlations with prognosis. There was no difference in EphB1 and Ephrin-B expression between SC/ASC and AC tumors (P>0.05), but greater expression in those less than 3 cm in diameter, stage I or II (TNM stage), with no lymph node metastases, with no local invasion and treated with radical resection was apparent. Expression of EphB1 (P<0.05) and Ephrin-B (P<0.01) was higher in well differentiated than in poorly differentiated AC tumors. Kaplan-Meier survival analysis indicated that degree of differentiation, tumor diameter, lymph node metastases, local invasion, surgical approach and expression rate of EphB1 and Ephrin-B were closely related to the survival of SC/ASC (P<0.05) and AC patients (P<0.01). Patients with tumors that positive expressed EphB1 and Ephrin-B, whether it is SC/ASC (P SC/ASC =0.000) or AC (P AC =0.000 or P AC =0.002) had longer survival than those negative expression. Cox multivariate analysis indicated a negative correlation between expression of EphB1 or Ephrin-B and overall survival. Hence, EphB1 and Ephrin-B could be regarded as independent good prognostic factorsand important biological markers for SC/ASC and AC of gallbladder.

MeSH terms

  • Adenocarcinoma / diagnosis
  • Adenocarcinoma / mortality
  • Adenocarcinoma / pathology
  • Adult
  • Aged
  • Aged, 80 and over
  • Biomarkers, Tumor / metabolism
  • Carcinoma, Adenosquamous / diagnosis
  • Carcinoma, Adenosquamous / mortality
  • Carcinoma, Adenosquamous / pathology
  • Carcinoma, Squamous Cell / diagnosis
  • Carcinoma, Squamous Cell / mortality
  • Carcinoma, Squamous Cell / pathology
  • Ephrin-B1 / biosynthesis*
  • Female
  • Gallbladder / pathology
  • Gallbladder Neoplasms / diagnosis*
  • Gallbladder Neoplasms / mortality
  • Gallbladder Neoplasms / pathology
  • Humans
  • Immunohistochemistry
  • Lymphatic Metastasis / pathology
  • Male
  • Middle Aged
  • Prognosis
  • Receptor, EphB1 / biosynthesis*

Substances

  • Biomarkers, Tumor
  • EFNB1 protein, human
  • Ephrin-B1
  • Receptor, EphB1