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Induction of Apoptosis to Rat Thyroid Follicular Epithelial Cell Line, FRTL-5 Cell

Research Project

Project/Area Number 08670199
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Human pathology
Research InstitutionYamanashi Medical University

Principal Investigator

KAWAOI Akira  Yamanashi Medical University, Dept.of Pathology, Professor, 医学部, 教授 (30059224)

Co-Investigator(Kenkyū-buntansha) YOKOYAMA Akira  Yamanashi Medical University, Dept.of Pathology, Research Associate, 医学部, 助手 (30273056)
HEMMI Akihiro  Yamanashi Medical University, Dept.of Pathology, Research Associate, 医学部, 助手 (40173562)
KATOH Ryohei  Yamanashi Medical University, Dept.of Pathology, Associate Professor, 医学部, 助教授 (30152755)
Project Period (FY) 1996 – 1997
Project Status Completed (Fiscal Year 1997)
Budget Amount *help
¥2,200,000 (Direct Cost: ¥2,200,000)
Fiscal Year 1997: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1996: ¥1,600,000 (Direct Cost: ¥1,600,000)
KeywordsApoptosis / Thyroid / Bone marrow derived cell / 骨髄細細 / 骨髄細胞 / IL-3
Research Abstract

In the present study TSH dependnt apoptosis was successfully induced to FRTL-5 cells by replacing conventional monolayr culture with suspension culture.
Since cell to cell or cell to matrix adhesion was considered to be significantly weakenend in suspension culture, the adhesion molecules such as E-cadherin, integrins and their ligands such as laminin, type 4 collagen, fibronectin which are expressed in FRTL-5 cells were immunocytochemically examined, and their expression in the cells was suggested to be up-regulated by TSH in suspension culture.
The possibility was deduced from above observations that induction of TSH dependent apoptosis in FRTL-5 cells was initiated by the decreased adhesiveness of cells caused by down regulated expression of adhesion molecules in these cells.
The questions remained to be answered are as follows : 1. What is the role of TSH in the expression of adhesion molecules in monolayr cultured cells which are resistant against apoptosis? 2. Are there, if any, regulatory factors which make FRTL-5 cells resistant vs apoptosis by keeping cell adhesion stable in the condition of monolayr culture without TSH? 3. How TSH exerts its effects on the cell adhesion in FRTL-5 cells, and why the deprivation of TSH results in the loosening of cell adhesion and finally in apotosis?

Report

(3 results)
  • 1997 Annual Research Report   Final Research Report Summary
  • 1996 Annual Research Report
  • Research Products

    (12 results)

All Other

All Publications (12 results)

  • [Publications] 田坂 捷雄: "アポトーシスを回避するモノクローン抗体のin vivoでの役割" 日本病理学会会誌. 84・1. 226- (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 田坂 捷雄: "骨髄細胞におけるアポトーシス回避のための2シグナル" 日本病理学会会誌. 85・1. 94- (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 川生 明.李〓: "組織細胞化学1995(分担執筆)" 日本組織細胞化学会, (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Tasaka.K.: "Histochemistry and Cytochemistry 1996" (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] K.TASAKA: "In vivi role of monoclonal antibody which can induce escape from apoptosis." Transactiones Societatis Pathologicae Japonicae.84 (1). 226 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] K.TASAKA: "Two signals, required to escape from apoptosis in a bone marrow derived cell line." Transactiones Societatis Pathologicae Japonicae. 85 (1). 94 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] A.Kawaoi, Li Xin: "Histochemistry and Cytochemistry 1995"

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] K.TASAKA: "Histochemistry and Cytochemistry 1996"

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 田坂捷雄: "アポトーシスを回避するモノクローン抗体のinvivoでの役割" 日本病理学会会誌. 84・1. 226- (1995)

    • Related Report
      1996 Annual Research Report
  • [Publications] 田坂捷雄: "骨髄細胞におけるアポトーシス回避のための2シグナル" 日本病理学会会誌. 85・1. 94- (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 川生 明: "組織細胞化学1995" 日本組織細胞化学会, (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 田坂捷雄: "Histochemistry and Cytochemistry 1996" (1996)

    • Related Report
      1996 Annual Research Report

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Published: 1996-04-01   Modified: 2016-04-21  

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