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呼吸器神経上皮体細胞のコリン作働性神経支配と神経伝達の機序

Research Project

Project/Area Number 02807004
Research Category

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

Allocation TypeSingle-year Grants
Research Field General anatomy (including Histology/Embryology)
Research InstitutionNagasaki University

Principal Investigator

松村 豪一  長崎大学, 医学部, 助教授 (40039871)

Co-Investigator(Kenkyū-buntansha) 川原 克信  長崎大学, 医学部, 講師 (80152990)
中根 一穂  長崎大学, 医学部, 教授 (60164240)
小路 武彦  長崎大学, 医学部, 講師 (30170179)
Project Period (FY) 1990 – 1991
Project Status Completed (Fiscal Year 1991)
Budget Amount *help
¥1,300,000 (Direct Cost: ¥1,300,000)
Fiscal Year 1991: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 1990: ¥900,000 (Direct Cost: ¥900,000)
Keywords肺 / 神経上皮体 / アセチルコリンレセプタ- / cDNAプロ-ブ / コリン作仂性神経支配 / In Situ hybridization / AchR αーsubunit mRNA / 神経伝達 / 呼吸器 / コリン作動性神経支配 / in situ hibridization / AchR alphaーsubunit mRNA
Research Abstract

本年度は「外気に直接触れる内分泌細胞の微絨毛部分が外気状態の変化を認識して、状況に応じて内分泌顆粒を放出する」との仮説の是非を平成2年度に引き続き検討するために研究を実施した。
1.平成2年度に光顕レベルで、新生児とadultマウスの肺凍結切片において、HRPー標識ーαーbungarotoxinを反応させた結果、アセチルコリンレセプタ-(AchR)の局在が神経上皮体細胞と神経終末との接着部に相当する部分に証明されたが、同じ肺の凍結切片を電顕下に観察した結果、電顕レベルでもAchRが同じ部位に局在していることを確認した。
2.マウス筋肉のAchRαーsubunitにおける核酸塩基配列ですべての種を越えてhomologyの高い部位を選び、核酸合成装置を駆使して、この部位の核酸を合成し、これに紫外線を照射してチミン2量体を作成したものをprobeとして用い、マウスや山椒魚の筋肉や肺の凍結切片で、in situ hybridization手法を実施した結果、マウスの神経筋接合部と肺における神経上皮体と神経終末の接着部にAchR αーsubunit mRNAの局在を証明し得た。
3.マウス筋肉のAchR βーsubunitとγーsubunitに関しても上記2と同様に核酸合成を行い、これに紫外線を照射してcDNAプロ-ブを作成した。
現在、これらのプロ-ブを用いて、マウスや山椒魚の筋肉と肺におけるAchR βーsubunitおよびγーsubunitのmRNAの局在と合成能について、分子生物学的に検索している。

Report

(2 results)
  • 1991 Annual Research Report
  • 1990 Annual Research Report
  • Research Products

    (12 results)

All Other

All Publications (12 results)

  • [Publications] H.Matsumura: "Electron microscopic studies of the lung of the salamander,Hynobius nebulosus.III.Neuroepithelial bodies." Okajimas Folia Anat.Jpn.62. 187-204 (1985)

    • Related Report
      1991 Annual Research Report
  • [Publications] H.Matsumura,T.Setoguti: "Correlatewd light microscopic and transmission and scanning electron microscopic studies of the laryngeal epithelium in salamanders,Hynobius nebulosus" J.Electron Microsc.35. 66-76 (1986)

    • Related Report
      1991 Annual Research Report
  • [Publications] H.Matsumura,T.Setoguti: "Ultrastructural and immunocytochemical studies of endocrine cells in the laryngotracheal and pulmonary epithelium of the salamander,Hynobius nebulosus" Proceedings of 8th Int.Congress of Endocrinology. 202 (1988)

    • Related Report
      1991 Annual Research Report
  • [Publications] H.Matsumura,P.K.Nakane: "Localization of acetylcholine receptor in pulmonary neuroepithelial bodies" J.Histochem.& Cytochem.38. 1019 (1990)

    • Related Report
      1991 Annual Research Report
  • [Publications] H.Matsumura,P.K.Nakane: "Ultrastructural and histochemical study of neuroepithelial bodies in the respiratory system,with special refence to the acetylcholine receptor" Proceedings of Int.Congress of Neuropathology. 216 (1990)

    • Related Report
      1991 Annual Research Report
  • [Publications] T.Koji,S.Izumi,H.Matsumura,P.K.Nakane: "The use of TーT dimerized oligonucleotide for electron microscopic localization of specific mRNA and for detction of specific DNA binding protein" 第15回日本比較内分泌学会・シンポジウム プロシ-ディング. (1990)

    • Related Report
      1991 Annual Research Report
  • [Publications] H.Matsumura: "Electron microscopic studies of the lung of the salamander,Hynobius nebulosus.III.Neuroepithelial bodies." Okajimas Folia Anat.Jpn.62. 187-204 (1985)

    • Related Report
      1990 Annual Research Report
  • [Publications] H.Matsumura,T.Setoguti: "Correlatewd light microscopic and transmission and scanning electron microscopic studies of the laryngeal epithelium in salamanders,Hynobius nebulosus" J.Electron Microsc.35. 66-76 (1986)

    • Related Report
      1990 Annual Research Report
  • [Publications] H.Matsumura,T.Setoguti: "Ultrastructural and immunocytochemical studies of endocrine cells in the laryngotracheal and pulmonary epithelium of the salamander,Hynobius nebulosus" Proceedings of 8th Int.Congress of Endocrinology. 202 (1988)

    • Related Report
      1990 Annual Research Report
  • [Publications] H.Matsumura,P.K.Nakane: "Localization of acetylcholine receptor in pulmonary neuroepithelial bodies" J.Histochem.& Cytochem.38. 1019 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] H.Matsumura,P.K.Nakane: "Ultrastructural and histochemical study of neuroepithelial bodies in the respiratory system,with special refence to the acetvlcholine receptor" Proceedings of Int.Congress of Neuropathology. 216 (190)

    • Related Report
      1990 Annual Research Report
  • [Publications] T.Koji,S.Izumi,H.Matsumura P.K.Nakane: "The use of TーT dimerized oligonucleotide for electron microscopic localization of specific mRNA and for detection of specific DNA binding protein" 第15回日本比較内分泌学会・シンポジウム プロシ-ディング. (1990)

    • Related Report
      1990 Annual Research Report

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Published: 1990-04-01   Modified: 2016-04-21  

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