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Analysis of the mecharism of lymph node metastasis of oral carcinomas using O-IN,hamster squamous cell carcinoma with high metastatic potential.

Research Project

Project/Area Number 07457484
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Surgical dentistry
Research InstitutionNiigata University

Principal Investigator

NAKAJIMA Tamio  Niigata University School of Dentistry Professor, 歯学部, 教授 (10014010)

Co-Investigator(Kenkyū-buntansha) NOMURA Tsutomu  Niigata University Dental Hospital Assistant Professor, 歯学部・附属病院, 助手 (20228365)
SHINGAKI Susumu  Niigata University School of Dentistry Associate Professor, 歯学部, 助教授 (30134943)
SAKU Takashi  Niigata University School of Dentistry Professor, 歯学部, 教授 (40145264)
Project Period (FY) 1995 – 1996
Project Status Completed (Fiscal Year 1996)
Budget Amount *help
¥7,400,000 (Direct Cost: ¥7,400,000)
Fiscal Year 1996: ¥2,200,000 (Direct Cost: ¥2,200,000)
Fiscal Year 1995: ¥5,200,000 (Direct Cost: ¥5,200,000)
KeywordsOral carcinoma / Lymph node metastasis / Basement membrane / 基底膜 / リンパ行性転移 / 血行性転移 / リンパ管侵襲 / 血管侵襲 / リンパ節転移
Research Abstract

The mechanism of lymph node metastasis of oral carcinomas was studied using an animal model of squamous cell carcinoma with a high metastatic potential to lymph nodes in hamsters. On light microscopy, O-IN transplanted in the tonque caused lymphatic invasion with growth, but blood vessel invasion was not observed. Tumor cell clusters in lymphatic vessels were continuous with adjacent tumor cell nests and became disrupted into smaller pieces to be transported to lymph nodes. On electron microscopy, the endothelial injury caused by mechanical pressure from tumor growth was the characteristic feature common to both lymphatic and blood vessel invasions. Tumor cell nests penetrated into the lumen of both vessels through gaps of disrupted endothelial cells. The tumor cell nests invaded lymphatic vessels with their basement membrane on the surface and tumor cell clusters were maintained in a relatively large size, whereas they were disrupted into small pieces by neutrophils in blood vessels. … More This difference was most likely responsible for causing more frequent lymph node metastasis than hematogenous metastasis.
Immunostaining for laminin showed that the disruption of basement membrane became conspicuous, in particular at the invasion front, with the decrease of nest size and corresponding to the stage of lymph node metastasis. The expression of laminin mRNA and the activities of MMP-9 and MMP-3 were much stronger in metastatic cells than non-metastatic cells isolated from O-IN.The findings suggest that the disappearance of besement membrane associated is an essential sign for local invasion of tumor cells leading to lymphatic invasion and metastasis to regional lymph nodes. An inhibition experiment using TIMP is needed to confirm the interpretation.
On three-dimensional culture in collagen matrix gel, ACC2, a cell line established from human adenoid cell carcinoma and a metastatic cell line established from O-IN could be maintained for 6 and 14 days, respectively. Pseudocyst formation and secretion of HSPG,type I collagen and fibronectin were confirmed in ACC2. Deposition of basement membrane-like substance and components of extracellular matrix were observed in O-IN.
The results of this research were reported in international journals and meetings. Less

Report

(3 results)
  • 1996 Annual Research Report   Final Research Report Summary
  • 1995 Annual Research Report
  • Research Products

    (17 results)

All Other

All Publications (17 results)

  • [Publications] Kobayashi Y, Nakajima T, Saku T.: "Loss of basement membrane in the invading front of O-1N,hamster squamous cell carcinoma with high lymph node metastatic potential:an immunohistochemical study for laminin and typeIV collagen." Path.lnter. 45. 327-334 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Kobayashi Y, Nakajima T, Saku T.: "Loss of basement membrane in the invading front of O-1N,hamster squamous cell carcinoma with high lymph node metastatic potential:an immunohistochemical study for laminin and typeIV collagen." In Oral Oncology,ed.AK Varma,M Mori.Macmillan India,New Delhi,India. Vol IV. 137-140 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Yoshizawa M, Shingaki S, Nakajima T, Saku T.: "Histopathological study on lymphatic invasion in squamous cell carcinoma(O-1N) with high potential of lymph node metastasis." In Oral Oncology,ed.AK Varma,M Mori.Macmillan India,New Delhi,India. Vol IV. 157-160 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Munakata R, Irie T, Cheng J, Nakajima T, Saku T: "Pseudocyst formation by adenoid cystic carcinoma cells in collagen and in SCID mice." J.Oral Pathol.Med.25. 441-448 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Chuujoh T, Kuwano R, Nakajima T.: "Differential expressions of laminin and matrix metalloproteinases in the metastatic and nonmetastatic cells isolated from squamous cell carcinoma(O-1N)." Oral Med.Path.2. 81-87 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Ono Y, Nakajima T, Saku T.: "Vascular invasion of O-1N,hamster squamous cell carcinoma with high potential of lymph node metastasis:ultrastructural comparison between lymphatics and blood vessels." Path.Inter.(in press).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Kobayashi Y,Nakajima T,Saku T.: "Loss of basement membrane in the invading front of O-IN,hamster squamous cell carcinoma with high lymph node metastatic potencial : an immunohisto-chemical study for laminin and type IV collagen" Path.Inter. 45. 327-334 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Kobayashi Y,nakajima T,Saku T.: "Loss of basement membrane in the invading front of O-IN,hamster squamous cell carcinoma with high lymph node metastatic potential : an immunohisto-chemical study for laminin and type IV collagen" In Oral Oncology, ed.AK Varma, M Mori, Macmillan India, New Delhi, India. Vol IV. 137-140 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Yoshizawa M,Shingaki S,Nakajima T,Saku T.: "Histopathological study on lymphatic invasion in squamous cell carcinoma (O-IN) with high potential of lymph node metastasis." In Oral Oncology, ed. AK Varma, M Mori, Macmillan India, New Delhi, India. Vol IV. 157-160 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Munakata R,Irie T,Cheng J,Nakajima T,Saku T.: "Pseudocyst formation by adenoid cystic carcinoma cells in collagen and in SCID mice" J.Oral Pathol.Med.25. 441-448 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Chuujoh T,Kuwano R,Nakajima T.: "Defferential expressions of lanimin and matrix metalloproteinases in the metastatic and non-metastatic cells isolated from squamous cell carcinoma (O-IN)." Oral Med.Path.2. 81-87 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Ono Y,Nakajima T,Saku T.: "Vascular invasion of O-IN,hamster squamous cell carcinoma with high potential of lymph node metastasis : ultrastructural comparison between lymphatics and blood vessels." Path.Inter.(in press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Kobayashi Y,Nakajima T,Saku T.: "Loss of basement membranes in the invading front of O-1N,hamster squamous cell carcinoma with high lymph node metastatic potential :an immunohistochemical study for laminin and type IV collagen." Pathology International. 15. 327-334 (1995)

    • Related Report
      1996 Annual Research Report
  • [Publications] Yoshizawa M,Shingaki S,Nakajima T,Saku T.: "Histopathological study on lymphatic invasion in squamous cell carcinoma (O-1N) with high potential of lymph node metastasis." Oral Oncology. VolIV. 157-160 (1995)

    • Related Report
      1996 Annual Research Report
  • [Publications] Kobayashi Y,Nakajima T,Saku T.: "Loss of basement membrane in the invading front of O-1N,hamster squamous cell carcinoma with high lymph node metastatic potential : an immunohistochemical study for laminin and type IV collagen." Oral Oncology. VolIV. 137-140 (1995)

    • Related Report
      1996 Annual Research Report
  • [Publications] Kobayashi Y,NakajimaT,Saku T: "Loss of basement membra nes in the invadigfronto of O-1N, hamster squam ous cell car cinoma with high lymph mode metatatic potential: an immunohistoc hemical study for lamininand type IV collagen." Path Inter. 15. 327-334 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] Yoshizawa M,Shingaki S,Nakajima T,Saku T: "Histopathological study on lymphatic invasion in squamous cell carcinoma(O-1N) with high potential of lymph node metastasis." Oral Oncology. Vol1. 157-160 (1995)

    • Related Report
      1995 Annual Research Report

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Published: 1995-04-01   Modified: 2016-04-21  

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