Effect of HIF-1α on VEGF-C Induced Lymphangiogenesis and Lymph Nodes Metastases of Pancreatic Cancer / 华中科技大学学报（医学）（英德文版）

ABSTRACT

The effect of hypoxia inducible factor-1 α (HIF-1α) on vascular endothelial growth factor C (VEGF-C) and the correlation between HIF-1α and lymphangiogenesis and lymph nodes metastases (LNM) in pancreatic cancer were investigated. Immunohistochemical SP method was used to detect the protein expression of HIF-1α and VEGF-C, and Lymphatic vessel density (LVD) was determined by stain of VEGFR-3, collagen type Ⅳ in 75 pancreatic head cancers from regional pancreatectomy (RP) during Dec. 2001 to Dec. 2003. The relationship between HIF-1α and VEGF-C, lymphangiogenesis, LNM was analyzed statistically. The results showed that the positive expression rate of HIF-1α and VEGF-C in pancreatic cancer tissues was 48.00 % (36/75) and 65.33 % (49/75) respectively. In positive group of HIF-1α, the positive rate of VEGF-C and LVD, and LVD rate was 80.56 % (29/36), 13.22±3.76 and 88.89 % (32/36) respectively, and in negative group of HIF-1α,positive rate of VEGF-C and LVD was 51.28 % (20/39), 5.98±2.17 and 66.67 % (26/39) respectively (P＜0.01 or P＜0.05). It was suggested that HIF-1α could promote the expression of VEGF-C, lymphangiogenesis and LNM in pancreatic cancer.