Abstract
AIMS: Vascular endothelial growth factor (VEGF)-C and VEGF-D are angiogenic and lymphangiogenic members of the VEGF family of growth factors. Increased VEGF-C or VEGF-D expression in human tumours may be associated with lymph-node metastasis and lymphatic invasion. Circulating plasma levels of VEGF-A, VEGF-C and VEGF-D were measured in patients with colorectal cancer, and assessed for their usefulness as a diagnostic tool for determining lymph-node metastasis. MATERIALS AND METHODS: One hundred and twenty patients with colorectal cancer and 50 healthy control patients were included in the study. Plasma growth-factor levels were assessed by enzyme-linked immunosorbent assays. RESULTS: No significant differences in plasma VEGF-C or VEGF-D levels were seen between patients subgrouped by clinicopathological variables. In particular, there were no differences in median plasma VEGF-C or VEGF-D level in patients with and without lymph-node involvement (VEGF-C: 11.2 U/ml range, 4.9-51.9 vs 9
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