A New in Vitro Model of Cancer Invasion Using AlloDermR, a Human Cadaveric Dermal Equivalent: a Preliminary Report
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概要
- 論文の詳細を見る
Objectives. The first stage in the metastasis of squamous cell carcinoma (SCC) of the oral cavity involves the destruction of the basement membrane and invasion into the submucosal tissue. The purpose of this study is to develop a new in vitro model of cancer invasion using a human dermal equivalent, AlloDermR. Study design. Normal epithelial cells from a gingiva and a SCC line originating from human tongue cancer (HSC-3 and 4 cells) were cultured on AlloDermR, and composites of these cells and AlloDermR were evaluated histologically by HE staining and immunostaining with anti-laminin and type IV collagen antibodies. Furthermore, HSC-3 and 4 cells were transplanted into the tongues of nude mice, and regional lymph node metastases were examined histologically. Results. HSC-3 cells had invaded through the basement membrane into the AlloDermR dermis at 25 days after seeding. Decreases in the levels of laminin and type IV collagen were observed in the locations where HSC-3 had invaded. Metastasis to regional lymph nodes was observed at 3 weeks after transplantation in 4 of 10 (40%) mice. On the other hand, normal epithelial cells and HSC-4 cells did not show invasion into AlloDermR. Lymph node metastasis was not observed in the mice bearing HSC-4 cells. Conclusion. This experimental model using AlloDermR is a potential new in vitro model of cancer invasion.
- 神戸大学の論文
著者
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Komori Takahide
Department of Oral and Maxillofacial Surgery, Kobe University School of Medicine
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Kataoka Tomoko
Department Of Oral And Maxillofacial Surgery Kobe University Graduate School Of Medicine
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Shigeta Takashi
Department of Oral and Maxillofacial Surgery, Kobe University Graduate School of Medicine
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Takahashi Hidenori
Department Of Oral And Maxillofacial Surgery Kobe University Graduate School Of Medicine
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Umeda M
Department Of Oral And Maxillofacial Surgery Kobe University Graduate School Of Medicine
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Tahara Shinya
Department Of Oral And Maxillofacial Surgery Kobe University Graduate School Of Medicine
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Shigeta Takashi
Department Of Mechanical Engineering And Materials Science Faculty Of Engineering Kumamoto Universit
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Takahashi Hidenori
Department Of Applied Biological Sciences Faculty Of Science And Technology Tokyo University Of Scie
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Tahara Shinya
Kobe University Graduate School of Medicine
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Komori T
Department Of Oral And Maxillofacial Surgery Kobe University School Of Medicine
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Komori Takahide
Department Of Endodontics Showa University School Of Dentistry
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Umeda Masahiro
Department of Clinical Oral Oncology, Nagasaki University Graduate School of Biomedical Sciences
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