Expression of hypoxia-inducible factor (HIF)-1alpha and vascular endothelial growth factor (VEGF)-D as outcome predictors in resected esophageal squamous cell carcinoma

Dis Markers. 2008;25(3):141-8. doi: 10.1155/2008/468323.

Abstract

Hypoxia-inducible factor (HIF)-1alpha and vascular endothelial growth factor (VEGF) are important angiogenic factors in human cancers. Relative to VEGF-C, prognostic significance of VEGF-D expression and its association with HIF-1alpha expression remain elusive in esophageal squamous cell cancer (ESCC). We studied expression of HIF-1alpha and VEGF-D using immunohistochemistry in 85 resected ESCC specimens and correlated results with patients' clinicopathologic parameters and survival. Association between expression of HIF-1alpha and VEGF-D was investigated using a concordance analysis. High expression of HIF-1alpha and VEGF-D was observed in 52 (61.2%) and 56 (65.9%) patients, respectively. HIF-1alpha expression correlated well with tumor stage (P = 0.041), whereas VEGF-D expression correlated with tumor stage (P = 0.027) and N status (P = 0.019). Groups of high HIF-1alpha and VEGF-D showed worse survivals than those of low expression (P = 0.002 and 0.001, respectively). Multivariate analysis supported expression of HIF-1alpha and VEGF-D as significant survival predictors (P = 0.044 and 0.035, respectively). A concordance rate of 69.5% was observed between expression of HIF-1alpha and VEGF-D. In conclusion, protein expression of HIF-1alpha and VEGF-D are independent prognostic predictors. An association between expression of HIF-1alpha and VEGF-D suggests that these two angiogenic factors are essential in progression of ESCC.

MeSH terms

  • Aged
  • Biomarkers, Tumor / metabolism
  • Carcinoma, Squamous Cell / metabolism*
  • Carcinoma, Squamous Cell / pathology
  • Carcinoma, Squamous Cell / secondary
  • Carcinoma, Squamous Cell / surgery
  • Esophageal Neoplasms / metabolism*
  • Esophageal Neoplasms / pathology
  • Esophageal Neoplasms / surgery
  • Female
  • Humans
  • Hypoxia-Inducible Factor 1, alpha Subunit / metabolism*
  • Immunohistochemistry
  • Lymphatic Metastasis
  • Male
  • Neoplasm Staging
  • Treatment Outcome
  • Vascular Endothelial Growth Factor D / metabolism*

Substances

  • Biomarkers, Tumor
  • HIF1A protein, human
  • Hypoxia-Inducible Factor 1, alpha Subunit
  • Vascular Endothelial Growth Factor D