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ラット胸腺腫発生遺伝子Tsrー1の作用機序に関する研究

Research Project

Project/Area Number 03151024
Research Category

Grant-in-Aid for Cancer Research

Allocation TypeSingle-year Grants
Research InstitutionNagoya University

Principal Investigator

松山 睦司  名古屋大学, 医学部, 教授 (80073112)

Co-Investigator(Kenkyū-buntansha) 羽藤 文彦  大阪市立大学, 医学部, 助手 (00198772)
増田 彰  愛知県がんセンター研究所, 研究員 (50157202)
松浦 晃洋  札幌医科大学, 医学部, 助手 (70157238)
木下 喜博  大阪市立大学, 医学部, 教授 (80046896)
田口 修  愛知県がんセンター研究所, 主任研究員 (00142167)
Project Period (FY) 1991
Project Status Completed (Fiscal Year 1991)
Budget Amount *help
¥8,700,000 (Direct Cost: ¥8,700,000)
Fiscal Year 1991: ¥8,700,000 (Direct Cost: ¥8,700,000)
KeywordsBUFーMna系ラット / 胸腺腫 / 胸腺腫発生遺伝子 / Tsrー1 / EGFR
Research Abstract

1.Tsrー1遺伝子導入コンジェニックラットの樹立:BUF/Mnaラットの胸腺腫感受性遺伝子Tsrー1を胸腺腫嫌発系ACI/NMsラットに導入するため、胸腺腫発生を指標として、退交配を続け第9代に達した。
2.Tsrー1遺伝子の発現の場の検索:老齢のBUF/Mnaラットに致死量の放射線を照射し、異種であるBALB/cヌ-ドマウスの骨髄細胞を4X10^7個静注した。4週後の屠殺時に胸腺腫の再構築が認められ、胸腺腫内のリンパ球は95%以上がマウスThyー1.2を発現していた。従って、胸腺腫の本体は上皮細胞であることが実証された。
3.胸腺腫上皮細胞の分子生物学的検索:(1)ラット正常胸腺、胸腺腫及び胸腺癌由来の合計7株の上皮細胞株について、Northern blottingにて種々の癌関連遺伝子および癌抑制遺伝子の発現の有無を検索した。cーmyc、p53はすべての細胞株で同レベルの発現を認めた。EGFーRは正常胸腺及び胸腺腫由来の細胞株で発現がみられたものの、胸腺癌由来細胞株では低レベルであった。TGFーβについては逆に胸腺癌由来細胞株で発現が増強していた。(2)正常胸腺および胸腺腫の初代培養において、各種のサイトカインのmRNAの発現を検索したところ、胸腺腫特異的にGーCSFの高い発現が見られた。(3)Tsrー1とrnu遺伝子の連関が示唆されたので、両遺伝子に関するcongenic rat、Eviー2及びMpo遺伝子のプロ-ブを使用して、Tsrー1のクロ-ニングに着手した。
4.胸腺腫内リンパ球の生理的細胞死の障害:10%FCS添加RPMI培養液中でWistar系ラット胸腺リンパ球を培養すると24時間後には約30〜40%しか生存していないが、BUF/Mna系ラット胸腺腫内リンパ球は55〜65%の細胞が生存する。この生細胞数の高度残存は、BUF/Mna系ラット胸腺腫内リンパ球の生理的細胞死機構が障害されていることを示すものと考えられる。また、老令BUF/Mna系ラットにおいて、抗TCRαβ抗体あるいは抗CD3抗体と抗マウス免疫グロブリン抗体により細胞表面上のTCR複合体を架橋したところ、細胞内Ca濃度の上昇が認められた。従って胸腺腫内リンパ球のTCRは刺激伝達能を保持していることが明らかになった。

Report

(1 results)
  • 1991 Annual Research Report
  • Research Products

    (26 results)

All Other

All Publications (26 results)

  • [Publications] Takenaka,T.: "Establishment and characterization of immortalized non-transplantable mouse mammary cell lines cloned from a MMTV-induced tumor cell line cultured for a long duration." Nagoya J.Med.Sci.53. 9-21 (1991)

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      1991 Annual Research Report
  • [Publications] Wajjwalku,W.: "Tissue distribution of mouse mammary tumor virus (MMTV) antigens and new endogenous MMTV loci in Japanese laboratory mouse strains." Jpn.J.Cancer Res.82. 1413-1420 (1991)

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      1991 Annual Research Report
  • [Publications] Muzzillo,D.A.: "Ultrastructural cytochemistry of eosinophilic inclusions in the cells of hyperplastic nodules and hepatomas in mouse liver." Acta Path.Jpn.41. 806-810 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] Taniguchi,M.: "The ret oncogene products are membrane bound glyco-proteins phosphorylated on tyrosine residuse in vivo." Biochem.Biophys.Res.Comm.181. 416-422 (1991)

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      1991 Annual Research Report
  • [Publications] Torii,K.: "Aging-associated deletions of human diaphragmatic mitochondrial DNA."

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      1991 Annual Research Report
  • [Publications] Satake,T.: "Endocrine cells in a normal breast and non-cancerous breast lesion." Acta Path.Jpn.41. 874-878 (1991)

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      1991 Annual Research Report
  • [Publications] Sasaki,S.: "Inhibition of wound contraction by papaverine:In vitro analysis with a submucosal tissue model." Ann.Plast.Surg.27. 562-569 (1991)

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      1991 Annual Research Report
  • [Publications] Tohji,Y.: "Surface characteristics of thymocytes in glucocorticoid treated rats --using rosette-formation technique and surface marker analysis--." Cell.Mol.Biol.37. 713-721 (1991)

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      1991 Annual Research Report
  • [Publications] Hato,F.: "Surface antigenic analysis of rosette-forming cells in rat thymus --using monoclonal antibodies against T cell surface markers--." Cell.Mol.Biol.37. 839-845 (1991)

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      1991 Annual Research Report
  • [Publications] Hato.F.: "Preparation of monoclonal antibody against synthetic thymosin α^1 and its effect on the biological activity of thymosin α^1." Cell.Mol.Biol.

    • Related Report
      1991 Annual Research Report
  • [Publications] Kinoshita,Y.: "Target cells for new thymocyte growth factor derived from the rat thymus epithelial cell line (TAD3)." Cell.Mol.Biol.

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      1991 Annual Research Report
  • [Publications] Hato,F.: "Establishment of methods for studying thymus functions." Jpn.J.Physiol.41(Suppl.). 37 (1991)

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      1991 Annual Research Report
  • [Publications] Tominaga,K.: "Fluorescent study of nicotinic acetylcholine receptors in the thymus." Jpn.J.Physiol.41(Suppl.). 46 (1991)

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      1991 Annual Research Report
  • [Publications] Kinoshita,Y.: "Effect of the factor from thymus epithelial cells on differentiation and maturation of thymic lymphocytes." Jpn.J.Physiol.41(Suppl.). 46 (1991)

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      1991 Annual Research Report
  • [Publications] Hara,I.: "Development of monoclonal antibodies reacting against mycobacterial 65kda heat shock protein by using recombinant truncated products." Microbiol.Immunol.35. 995-1007 (1991)

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      1991 Annual Research Report
  • [Publications] Horie,M.: "Properties of the promoter region of the T18^d (T13^C) Tla gene." Immunogenetics. 33. 171-177 (1991)

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      1991 Annual Research Report
  • [Publications] Kinebuchi,M.: "A novel cell surface antigen involved in thymocyte and thymic epithelial cell adhesion." J.Immunology. 146. 3721-3728 (1991)

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      1991 Annual Research Report
  • [Publications] Torimoto,Y.: "A monoclonal antibody (8H3) that binds to rat T lineage cells and augments in vitro proliferative responses." J.Exp.Med.172. 1315-1323 (1991)

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      1991 Annual Research Report
  • [Publications] Matsuura,A.: "Expression of the Q8/9^d gene by T cells of the mouse." Immunogenetics. 30. 156-161 (1989)

    • Related Report
      1991 Annual Research Report
  • [Publications] Matsuura,A.: "Transcripts of Tla genes." Immunogenetics. 25. 411-415 (1987)

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      1991 Annual Research Report
  • [Publications] Sakakibara,Y.: "Development of thermotolerance in hsp70 induction-defective mutant of NRK cells." Int.J.Hyperthermia. 8. (1992)

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      1991 Annual Research Report
  • [Publications] Masuda,A.: "Signal transduction cascade shared by epidermal growth factor and platelet-derived growth factor is a major pathway for oncogenic transformation in NRK cells." New Biologist. (1992)

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      1991 Annual Research Report
  • [Publications] Masuda,A.: "Abnormal increase in multi-nuclear macrophages in primary cultures of BUF/Mna rat thymomas." Virch.Arch.B. (1992)

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      1991 Annual Research Report
  • [Publications] Obata,Y.: "Abnormal thymic development,impaired immune function and γ δ T cell lymphomas in a TL transgenic mouse strain." J.Exp.Med.174. 351-362 (1991)

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      1991 Annual Research Report
  • [Publications] 増田 彰: "実技11.6増殖シグナルに応答しない異変株の分離.蛋白質・核酸・酵素 臨時増刊 分子細胞遺伝学実験法" 共立出版, 3 (1991)

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      1991 Annual Research Report
  • [Publications] 増田 彰: "増殖因子による癌化形質表現変異株.生物薬科学実験講座" 広川書店, (1992)

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      1991 Annual Research Report

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Published: 1991-04-01   Modified: 2016-04-21  

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