Inflammation-related factors predicting prognosis of gastric cancer

World J Gastroenterol. 2014 Apr 28;20(16):4586-96. doi: 10.3748/wjg.v20.i16.4586.


Gastric cancer (GC), which is mainly induced by Helicobacter pylori (H. pylori) infection, is one of the leading causes of cancer-related death in the developing world. Active inflammation initiated by H. pylori infection and maintained by inherent immune disorders promotes carcinogenesis and postoperative recurrence. However, the presence with H. pylori in tumors has been linked to a better prognosis, possibly due to the induction of antitumor immunity. Tumor infiltrations of tumor-associated macrophages, myeloid-derived suppressor cells, neutrophils, Foxp3(+) regulatory T cells are correlated with poor prognosis. Tumor infiltrating CD8(+) cytotoxic T lymphocytes, dendritic cells, and CD45RO T cells are generally associated with good prognosis of GC, although some subsets of these immune cells have inverse prognosis prediction values. High ratios of Foxp3(+)/CD4(+) and Foxp3(+)/CD8(+) in tumors are associated with a poor prognosis; whereas high Th1/Th2 ratio in tumors predicts a good prognosis. High levels of interleukin (IL)-6, IL-10, IL-32, and chemokine C-C motif ligands (CCL)7 and CCL21 in circulation, high expression of CXC chemokine receptor 4, chemokine C-C motif receptor (CCR)3, CCR4, CCR5, CCR7, hypoxia-inducible factor-1α, signal transducer activator of transcription-3, cyclooxygenase-2, and orphan nuclear receptor 4A2 in tumors are associated with an unfavorable prognosis. Increased serum levels of matrix metalloproteinases (MMP)-3, MMP-7, and MMP-11 and increased levels of MMP-9, MMP-12, and MMP-21 in tumors are consistently associated with poor survival of GC. Further emphasis should be put on the integration of these biomarkers and validation in large cohorts for personalized prediction of GC postoperative prognosis.

Keywords: Biomarker; Gastric cancer; Inflammation; Prognosis.

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Animals
  • Biomarkers, Tumor / metabolism*
  • Cytokines / metabolism
  • Gastritis / complications*
  • Gastritis / immunology
  • Gastritis / metabolism
  • Gastritis / microbiology
  • Helicobacter Infections / complications*
  • Helicobacter Infections / immunology
  • Helicobacter Infections / metabolism
  • Helicobacter Infections / microbiology
  • Helicobacter pylori / immunology
  • Helicobacter pylori / pathogenicity
  • Host-Pathogen Interactions
  • Humans
  • Inflammation Mediators / metabolism*
  • Lymphocytes, Tumor-Infiltrating / immunology
  • Lymphocytes, Tumor-Infiltrating / metabolism*
  • Predictive Value of Tests
  • Prognosis
  • Risk Factors
  • Signal Transduction
  • Stomach Neoplasms / etiology*
  • Stomach Neoplasms / immunology
  • Stomach Neoplasms / metabolism
  • Stomach Neoplasms / microbiology
  • Stomach Neoplasms / mortality
  • Transcription Factors / metabolism
  • Tumor Microenvironment


  • Biomarkers, Tumor
  • Cytokines
  • Inflammation Mediators
  • Transcription Factors