Vascular Endothelial Growth Factor C is an Indicator of Lymph Node Metastasis in Thoracic Esophageal Squamous Cellcarcinomas and Its Role in Long-term Survival After Surgery
Overview
Pulmonary Medicine
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Background: To define the role of vascular endothelial growth factor C (VEGF-C) on lymph node (LN) metastasis of human esophageal squamous cell carcinoma (ESCC), and to investigate its impact on overall survival.
Methods: Real-time polymerase chain reaction was introduced to quantify the expression of VEGF-CmRNA. One hundred and eight samples (59 tumor tissue and 59 paired normal tissue) were analyzed.
Results: VEGF-CmRNA expression was significantly higher in tumor tissues than in normal mucosa (P = 0.02). VEGF-CmRNA expression was significantly higher in LN (+) patients than in LN (-) patients (P = 0.04). VEGF-CmRNA expression was related to a positive LN number (P = 0.06) and a positive LN station number (P = 0.04). VEGF-CmRNA expression was significantly higher in stage III and IV patients than in stage I and II patients (P = 0.03). A logistic regression model showed that VEGF-CmRNA and T status were independent risk factors for LN metastasis(P < 0.05). In univariate analysis, survival tended to be poorer in the VEGF-CmRNA high expression group (22.0 months vs. 44.0 months, P = 0.08). A Cox regression model revealed that a positive LN station number was the only independent risk factor for overall survival (P < 0.01).
Conclusion: VEGF-C was a useful indicator for LN metastasis in human ESCC, and it might have some influence on long-term survival by affecting LN metastasis.
Fu Y, Kang H, Zhao H, Hu J, Zhang H, Li X Int J Clin Exp Med. 2015; 8(5):8288-94.
PMID: 26221412 PMC: 4509357.