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1994 Fiscal Year Final Research Report Summary

Gene expression of neuro-specific genes and their regulation by drugs-identification of transcriptional factors which are involved in neral differentiation and memory.

Research Project

Project/Area Number 05670089
Research Category

Grant-in-Aid for General Scientific Research (C)

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

Principal Investigator

HIGUCHI Hiroshi  Osaka University School of Medicine, Department of Pharmacology I,Associate professor, 医学部, 助教授 (30150337)

Project Period (FY) 1993 – 1994
KeywordsNeuropeptide Y / enkepalin A / gene expression / transcription / transcriptiona factor / cis-element / neural differentiation / depolarization
Research Abstract

The aim of this project is to elucidate the transcriptional regulation of neuron-specific genes by drugs and identification of transcriptional factors which are involved in the regulation. For this purpose, we used the cloned neuropeptide Y and enkephalin A genes by molecular biologial techniques. The results are as follows ;
(1) The positive regulation of NPY gene by membrane depolarization occurs at the transcriptional level.
(2) Three enhancer elements such as NGF responsive element, depolarization responsive element, and glucocorticoide responsive element are identified in the promoter regon of NPY gene.
(3) Several DNA-binding factors are found to bind to NGF responsive element.
(4) One of these factors, NDF1 was increased in binding activity with NGF treatment.
(5) The future goal is to clarify whether these transcriptional factors are important for gene regulation by drugs and neural differentiation, and the coning study is now going on.

  • Research Products

    (12 results)

All Other

All Publications (12 results)

  • [Publications] Higuche,H.et al.: "Decrease in prepro-neuropeptide Y gene expression in the adrenal gland and cerebral cortex of spontaneously hypertensive rats." Neuropeptides. 25. 343-349 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Kamegai,J,et al.: "Growth hormone induces expression of the C-fos gene on hypothalamic neuropeptide Y and scmatostatin neurons in hypophysectomized rats." Endocrinology. 135. 2765-2771 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Nakano,K.et al.: "Tyrosine phospholyration of a 58kDa-protein induced by morphine in SK-N-SH cells." Biochem,Biophys,Res,Commun.200. 789-796 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Higuchi,H.et al.: "High levels of expression of neuropeptide Y m RNA in human pheochromocytomas." Clin.Exp.Pharmacol.Physiol.21. 359-365 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 樋口 宗史: "分子生物学的手法による神経特異遺伝子の発現調節の解析" 脳と精神の医学. 4. 111-117 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 樋口 宗史: "チロシンキナーゼの細胞内情報伝達" Molecular Medicin. 30. 1482-1484 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 樋口 宗史: "「結合実験」レセプター -基礎と臨床- 分担" 朝倉書店, 250-258(9) (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 樋口 宗史: "「分子生物学的接近」生物学的精神医学シリーズ「薬物依存と脳障害」" 学会出版センター(印刷中), (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Higuchi, H., Nakano, K.and Iwasa, A.: "Decrease in prepro-neuropeptide Y gene expression in the adrenal gland and cerebral cortex of spontaneously hypertensive rats." Neuropeptides. 25. 343-349 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kamegai, J., Minami, S., Sugihara, H., Higuchi, H.and Wakabayashi, I.: "Growth hormone induces expression of the c-fos gene on hypothalamic neuropeptide Y and somatostatin neurons in hypophysectomized rats." Endocrinology. 135. 2765-2771 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Nakano, K., Osugi, T., Kuo, C.-H., Higuchi, H.and Miki, N.: "Tyrosine phospholyration of a 58kDa-protein induced by morphine in SK-N-SH cells." Biochem.Biophys.Res.Commun.200. 789-796 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Higuchi, H., Iwasa, A.and Yokokawa, K.: "High levels of expression of neuropeptide Y mRNA in human pheochromocytomas." Clin.Exp.Pharmacol.Physiol.21. 359-365 (1994)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1996-04-15  

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