Tumor invasion and angiogenesis in early esophageal squamous cell carcinoma

Hiroyuki Kuwano, Kozo Sonoda, Mitsuhiro Yasuda, Kohei Sumiyoshi, Tadahiro Nozoe, Keizo Sugimachi

研究成果: ジャーナルへの寄稿学術誌査読

20 被引用数 (Scopus)


Background and Objectives: Although the relationship between angiogenesis and tumor proliferation or malignant potential has been previously demonstrated in several studies, early stage of cancer invasion and angiogenesis has seldom been investigated. Methods: From the esophageal specimens of eight recently resected cases with esophageal squamous cell carcinoma, 25 areas of carcinoma-in-situ or microinvasive carcinoma were selected, and then a serial histologic investigation and immunohistochemical staining for the detection of Factor VIII-related antigen to investigate microvessels in the lamina propria mucosae beneath the lesions as a measure of angiogeneses and staining for laminin to visualize basement membrane was performed. Lymphocyte infiltration below the lesions were also estimated. In view of early cancerous invasion, histologic patterns of the growth of the lesions were divided into 'flat,' 'expansive,' and 'downgrowth' patterns. Results: Although downgrowth patterns are thought to be more invasive, relationships between the histologic patterns, and basement membrane staining patterns, and lymphocyte infiltration patterns were not demon strated. However, the angiogenetic ratio (the number of vessels/cm under the lesions divided by that under normal epithelium) was observed to be significantly and closely related to tumor invasion patterns (P < 0.01), although it was not related to the destruction of the basement membrane or lymphocyte infiltration below the lesions. Conclusions: The anglogenesis of esophageal squamous cell carcinoma is closely correlated to the tumor invasion patterns in early esophageal can cerous lesions.

ジャーナルJournal of Surgical Oncology
出版ステータス出版済み - 7月 1 1997

!!!All Science Journal Classification (ASJC) codes

  • 外科
  • 腫瘍学


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