Vascular endothelial growth factor-C expression in human gallbladder cancer and its relationship to lymph node metastasis
- Authors:
- Published online on: January 1, 2003 https://doi.org/10.3892/ijmm.11.1.33
- Pages: 33-39
Metrics: Total
Views: 0 (Spandidos Publications: | PMC Statistics: )
Total PDF Downloads: 0 (Spandidos Publications: | PMC Statistics: )
Abstract
Lymph node metastasis is a major prognostic factor in human cancer. Vascular endothelial growth factor C (VEGF-C) is a lymphangiogenic polypeptide that has been implicated in several human solid tumors. However, the clinical significance of VEGF-C has remained unknown in gallbladder carcinoma. Paraffin-embedded tumor specimens of 52 surgically resected gallbladder cancers were immunohistochemically stained for VEGF-C, VEGF, and CD34. The correlations among VEGF-C expression, VEGF expression, microvessel density (MVD), clinicopathologic features, and clinical outcomes were statistically analyzed. Thirty-three (63%) of the 52 gallbladder cancers were highly positive for VEGF-C protein by immunohistochemistry. VEGF-C expression was significantly correlated with lymphatic vessel involvement, lymph node metastasis, and worse outcomes after operation (p<0.001, p<0.001, p<0.001, respectively), but not with MVD. By the Cox regression model, lymphatic vessel involvement emerged as an independent prognostic parameter. These results suggest that VEGF-C may play a role in tumor progression via lymphangiogenesis and lymph node metastasis in human gallbladder cancer.