Digestive Diseases and Sciences

, Volume 58, Issue 1, pp 150–162

Different Expression of S100A8 in Malignant and Benign Gallbladder Diseases

  • Wei Wang
  • Kai-Xing Ai
  • Zhou Yuan
  • Xin-Yu Huang
  • Hui-Zhen Zhang
Original Article

DOI: 10.1007/s10620-012-2307-0

Cite this article as:
Wang, W., Ai, K., Yuan, Z. et al. Dig Dis Sci (2013) 58: 150. doi:10.1007/s10620-012-2307-0

Abstract

Background

Proteomic analysis is a powerful tool for complete establishment of protein expression. Comparative proteomic analysis of human bile from malignant and benign gallbladder diseases may be helpful in research into gallbladder cancer.

Aims

Our objective was to establish biliary protein content for gallbladder cancer, gallbladder adenoma, and chronic calculous cholecystitis for comparative proteomic analysis.

Methods

Bile samples were collected from patients with gallbladder cancer, gallbladder adenoma, and chronic calculous cholecystitis. Peptides of biliary proteins were separated by two-dimensional liquid chromatography then identified by tandem mass spectrometry.

Results

Up to 544, 221, and 495 unique proteins were identified in bile samples from gallbladder cancer, gallbladder adenoma, and chronic calculous cholecystitis. Forty-three, 16, and 28 proteins with more than one unique peptide, respectively, were identified in the three groups. Among these, 30 proteins including S100A8 were overexpressed in gallbladder cancer, compared with benign gallbladder diseases. We also confirmed, by immunohistochemical analysis, that S100A8 is more abundant in tumor-infiltrating immune cells in cancerous tissue.

Conclusions

Compared with benign gallbladder diseases, consistently elevated S100A8 levels in malignant gallbladder bile and tissue indicate that gallbladder cancer is an inflammation-associated cancer. S100A8 may be a biomarker for gallbladder cancer.

Keywords

Gallbladder cancerProteomicsBileS100A8

Copyright information

© Springer Science+Business Media, LLC 2012

Authors and Affiliations

  • Wei Wang
    • 2
  • Kai-Xing Ai
    • 1
  • Zhou Yuan
    • 1
  • Xin-Yu Huang
    • 1
  • Hui-Zhen Zhang
    • 3
  1. 1.Department of General SurgeryThe 6th Affiliated Hospital of Shanghai Jiaotong UniversityShanghaiChina
  2. 2.Department of General Surgery, Shaoxing People’s HospitalShaoxing Hospital of Zhejiang UniversityZhejiangChina
  3. 3.Department of PathologyThe 6th Affiliated Hospital of Shanghai Jiaotong UniversityShanghaiChina