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脳内神経系におけるc-erbB-2/neu遺伝子の役割

Research Project

Project/Area Number 11770049
Research Category

Grant-in-Aid for Encouragement of Young Scientists (A)

Allocation TypeSingle-year Grants
Research Field General pharmacology
Research InstitutionHyogo University

Principal Investigator

新郷 明子  兵庫大学, 附属研究所, 講師 (50309499)

Project Period (FY) 1999 – 2000
Project Status Completed (Fiscal Year 2000)
Budget Amount *help
¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 2000: ¥700,000 (Direct Cost: ¥700,000)
Keywordsestrogen / c-erbB-2 / neu遺伝子 / 分化 / p185^<erbB-2> / PC12細胞 / transfection / NIH3T3細胞
Research Abstract

c-erbB-2/neu遺伝子をtransfectionさせたPC12培養細胞は、NGFなしで分化するには至らなかった。そこで、transfection、させた細胞にNGFを添加し、neuron様に分化させ、培養液中に放出された蛋白質を濃縮した。
この濃縮した蛋白質をSDS-PAGEで展開してc-erbB-2/neu遺伝子をtransfectionさせなかった分化PC12培養細胞と比較したが、c-erbB-2/neu遺伝子由来の蛋白質を確認、他には目立った蛋白の新規発現は見つけられなかった。
PC12培養細胞膜上には僅かながらERが存在する。PC12培養細胞がneuron様に分化する際、ERを高発現させるので、培養液中にestradiolを添加しておいた場合のERの出現傾向を、NGFで分化させたc-erbB-2/neu遺伝子をtransfectionさせていないPC12培養細胞とtrancfectionさせたPC12培養細胞について、RNase protection assay、及び免疫化学的染色で解析した。その結果、ER mRNA発現は、c-erbB-2/neu遺伝子をtransfectionさせたPC12培養細胞の方がtransfectionさせなかった分化PC12培養細胞に比べ、著明であった。

Report

(2 results)
  • 2000 Annual Research Report
  • 1999 Annual Research Report
  • Research Products

    (12 results)

All Other

All Publications (12 results)

  • [Publications] Shingo,A.S.: "Nicotine inhibits estrogen response element binding in the rat brain."Journal of Neural Tranasmission. 107. 1491-1495 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 鬼頭昭三: "エストロゲンが老人性痴呆の発症を抑えるのはなぜか"医学のあゆみ. 195(6). 427-428 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 鬼頭昭三: "何故、nicotineは海馬neuronに対して有利に働くか?-in vitro実験的研究-"平成11年喫煙科学研究財団研究年報. 635-640 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Kito,S.: "Effects of nicotine on hippocampal neurons in relation with receptor subunits."30^<th> Annual Meeting Society for Neuroscience Abstracts. 25,part2. 1370 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Shingo,A.S.: "Mechanisms of estrogen-induced IGF-1 mRNA expression in hippocampal neurons."30^<th> Annual Meeting Society for Neuroscience Abstracts. 25,part2. 1914 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Shozo Kito: "Effects of nicotine on hippocampal neurons"The Japanese Journal of Pharmacology. 85,Supplement I. 231 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Akiko Shingo: "Mechanisms of estrogen-induced IGF-1 mRNA expression in hippocampal neurons."The Japanese Journal of Pharmacology. 85,Supplement I. 274 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Kito,S.: "Nicotine and estrogen crosstalk in yhe brain as to IGF-1 mRNA"Neurochemical Research. Vol24,No7. 923 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Shingo,A,S.: "Estrogen works sa a repair system in brain by inducing IGF-1 mRNA"Neurochemical Research. Vol24,No7. 948 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Kito,S.: "Nicotine-estrogen crosstalk in brain with regard to IGF-1 mRNA"Society for Neurosciense Abstracts. Vol25,part2. 2027 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Shingo,A,S.: "How does estrogen induce IGF-1 mRNA expression in neuron?"Society for Neurosciense Abstracts. Vol25,part2. 2027 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 鬼頭 昭三: "Neuronにおけるnicotine-estrogen機能相関に関する研究"平成10年度喫煙科学研究財団研究年報. 638-643 (1999)

    • Related Report
      1999 Annual Research Report

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Published: 2000-04-01   Modified: 2016-04-21  

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