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Angiopoietin-1 and vascular endothelial growth factor expression in human esophageal cancer

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Angiopoietin-1 (Ang-1) has been shown to act as an angiogenic promoter in embryonic angiogenesis by promoting vascular branching, pericyte recruitment and endothelial survival. Ang-1 expression has not been examined in human esophageal cancer. We examined Ang-1 and vascular endothelial growth factor (VEGF) gene expression in tumors from 45 esophageal cancer patients who underwent surgical resection. Forty (88.9%) of the 45 esophageal cancers revealed Ang-1 gene expression. VEGF121, VEGF165 and VEGF189 isoforms were detected in 93.3 (42/45), 55.6 (25/45) and 26.7% (12/45) of the cases, respectively. Ang-1 gene expression was significantly correlated with VEGF121 and VEGF165 gene expression (P=0.0289 and P=0.0127, respectively, Fisher's test). The results suggest that Ang-1 is associated with neovascularization in the cancer stroma through VEGF net-works in esophageal cancer.
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Document Type: Research Article

Affiliations: Department of Pathology and Gastroenterology, Tokai University School of Medicine, Bohseidai, Isehara-shi, Kanagawa 259-1193, Japan

Publication date: January 1, 2002

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  • The International Journal of Molecular Medicine is a monthly, peer-reviewed journal devoted to the publication of high quality studies related to the molecular mechanisms of human disease. The journal welcomes research on all aspects of molecular and clinical research, ranging from biochemistry to immunology, pathology, genetics, human genomics, microbiology, molecular pathogenesis, molecular cardiology, molecular surgery and molecular psychology.

    The International Journal of Molecular Medicine aims to provide an insight for researchers within the community in regard to developing molecular tools and identifying molecular targets for the diagnosis and treatment of a diverse number of human diseases.
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