Journal
JOURNAL OF GASTROINTESTINAL SURGERY
Volume 18, Issue 3, Pages 481-490Publisher
SPRINGER
DOI: 10.1007/s11605-013-2407-y
Keywords
Gastric cancer; Lymphangiogenesis; Prognosis
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Introduction Peritumoral lymphangiogenesis is significantly correlated with lymph node metastasis and poor prognosis in various cancers. However, there are few reports concerning the role of intranodal lymphangiogenesis in lymphatic metastasis. The aim of this study was to examine the association of lymphangiogenesis in regional lymph nodes with the progression of gastric cancer. Materials and Methods Lymphatic vessel density (LVD) was immunohistochemically estimated in 1,596 lymph nodes from 52 patients who underwent gastrectomy. Results Intranodal LVD was significantly correlated with the size of metastasis and the progression of cancer. Patients in the high LVD group had significantly poorer prognosis relative to patients in the low LVD group. Furthermore, expression of VEGF-C mRNA was significantly up-regulated in lymph nodes of pathological node positive patients compared to node negative patients. Discussion Thus, intranodal lymphangiogenesis was correlated with nodal metastasis and poor prognosis of patients with gastric cancer. Lymphangiogenesis in regional lymph nodes plays an early role in spreading of tumor cells through the lymphatic system to distant organs in gastric cancer.
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