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Modulation mechanism of transduction channels in the olfactory cilia

Research Project

Project/Area Number 26430016
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Neurophysiology / General neuroscience
Research InstitutionOsaka University

Principal Investigator

KURAHASHI Takashi  大阪大学, 生命機能研究科, 教授 (90225251)

Project Period (FY) 2014-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords情報伝達機構 / イオンチャネル / ナノスケール / 線毛 / パッチクランプ法 / 電流 / 嗅覚 / ナノバイオロジー / 電気生理学 / 嗅細胞 / 飲食品
Outline of Final Research Achievements

Olfaction starts from the olfactory cilia with nano-scale structure. It is difficult to apply to cell experiment because It involves distribution between air/water phases of molecules and molecular chain reaction within the cilia as nano-scale structure. In addition, many questions remain and we couldn't elucidate that system quantitatively. In this research, we developed new methods and used it for making clear the transduction system within the nano-scale structure cilia. For that, we needed to refine conventional patch clamp technique, nano-imaging technique, laser beams and combined photolysis of caged substances within tiny space. Furthermore, we combined a low noise current analysis of with high S/N ratio into new system. As a result, we could monitor its molecular dynamics in real time in the tiny living tissue and clarified the modification mechanism of olfactory transduction system using channels. We made a paper regarding this result and presented in the conference.

Academic Significance and Societal Importance of the Research Achievements

本研究成果により、感覚細胞における情報変換の分子機構を定量的に説明し、生体情報入力に関する分子動態的知見をもたらすことで、今後、ニューロンを含む生体細胞の微細構造部分(各種線毛、細胞小器官、デンドライトや軸索、シナプス、分泌顆粒)での分子機能研究に応用される進展が期待される。

Report

(6 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • 2015 Research-status Report
  • 2014 Research-status Report
  • Research Products

    (27 results)

All 2019 2018 2017 2016 2015 2014 Other

All Int'l Joint Research (4 results) Journal Article (3 results) (of which Peer Reviewed: 2 results,  Open Access: 1 results) Presentation (15 results) (of which Int'l Joint Research: 4 results,  Invited: 3 results) Book (4 results) Remarks (1 results)

  • [Int'l Joint Research] University of California, Davis(米国)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] National Taiwan University/National Yang Ming University(Taiwan)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] University of California, Davis(米国)

    • Related Report
      2016 Research-status Report
  • [Int'l Joint Research] University of California, Davis(米国)

    • Related Report
      2015 Research-status Report
  • [Journal Article] Electrical properties of cells from human olfactory epithelium.2019

    • Author(s)
      Tamari K, Takeuchi H, Kobayashi M, Takeuchi K, Kurahashi T, Yamamoto T.
    • Journal Title

      Auris Nasus Larynx

      Volume: 18 Pages: 30697-30697

    • NAID

      130007979788

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Second messenger molecules have a limited spread in olfactory cilia.2018

    • Author(s)
      Takeuchi H, Kurahashi T.
    • Journal Title

      J Gen Physiol.

      Volume: 150 Pages: 1647-1659

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 風味抑制因子2014

    • Author(s)
      倉橋 隆
    • Journal Title

      日本食品工学会誌

      Volume: 15 Pages: 203-205

    • NAID

      130004709584

    • Related Report
      2014 Research-status Report
  • [Presentation] 視細胞と嗅細胞のCl(Ca)2018

    • Author(s)
      倉橋隆・竹内裕子
    • Organizer
      日本生理学会 近畿生理談話会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Electrical properties of cells from human olfactory epithelium2018

    • Author(s)
      Kengo Tamari, Hiroko Takeuchi, Masayoshi Kobayashi, Kazuhiko Takeuchi, Takashi Kurahashi, Tetsuro Yamamoto.
    • Organizer
      日本生理学会
    • Related Report
      2017 Research-status Report
  • [Presentation] Molecula of the olfactory transduction channel by small molecules2017

    • Author(s)
      竹内裕子、倉橋隆
    • Organizer
      日本生理学会
    • Place of Presentation
      浜松アクトシティ(静岡県浜松市)
    • Year and Date
      2017-03-26
    • Related Report
      2016 Research-status Report
    • Invited
  • [Presentation] Ion channels mediating sense of smell.2017

    • Author(s)
      Kurahashi T, Takeuchi H.
    • Organizer
      Seminar of Neurobiology of Ion Channels Department of Neurosciences, University of Groningen, The Netherlands
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] Limited Spread of Second Messenger Molecules in the Olfactory Cilium2017

    • Author(s)
      Takashi Kurahashi
    • Organizer
      Osaka International Symposium
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Mechanism of flavor loss in foods and beverages2016

    • Author(s)
      Hiroko Takeuchi, Takashi Kurahashi.
    • Organizer
      Association for Chemoreception Sciences
    • Place of Presentation
      Hyatt Regency Coconut Point, FL, USA
    • Year and Date
      2016-04-20
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Modulation of CNG channel activity in olfactory cilia2016

    • Author(s)
      竹内裕子、倉橋隆
    • Organizer
      日本生理学会
    • Place of Presentation
      札幌コンベンションセンター(北海道)
    • Year and Date
      2016-03-22
    • Related Report
      2015 Research-status Report
  • [Presentation] Independent activation of the two subunits of the TMEM16 calcium-activated chloride channel2016

    • Author(s)
      Grace Jeng, 竹内裕子、倉橋隆、Tsung Yu Chen
    • Organizer
      日本生理学会
    • Place of Presentation
      札幌コンベンションセンター(北海道)
    • Year and Date
      2016-03-22
    • Related Report
      2015 Research-status Report
  • [Presentation] Modulation by off-flavors of CNG channels in olfactory cilia2016

    • Author(s)
      竹内裕子、倉橋隆
    • Organizer
      Biophysical Society(USA)
    • Place of Presentation
      ロサンゼルス(アメリカ)
    • Year and Date
      2016-02-27
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Presentation] 嗅覚情報変換チャネル抑制を引き起こすTCA以外の物質の可能性2015

    • Author(s)
      竹内裕子、倉橋隆
    • Organizer
      近畿生理学談話会
    • Place of Presentation
      近畿大学医学部(大阪)
    • Year and Date
      2015-10-24
    • Related Report
      2015 Research-status Report
  • [Presentation] Modulation of CNG channels activity in the olfactory cilia2015

    • Author(s)
      竹内裕子、倉橋隆
    • Organizer
      Physiological society(UK)
    • Place of Presentation
      カーディフ(イギリス)
    • Year and Date
      2015-07-06
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Presentation] High efficiency suppression of olfactory CNG channels may explain the olfactory masking and degradation of foods and beverages2014

    • Author(s)
      竹内裕子、倉橋隆
    • Organizer
      生理研国際シンポジウム
    • Place of Presentation
      生理学研究所
    • Year and Date
      2014-11-25 – 2014-11-28
    • Related Report
      2014 Research-status Report
  • [Presentation] Potent inhibition of olfactory transduction channel by natural compounds may degrade the quality of foods and beverages2014

    • Author(s)
      倉橋隆
    • Organizer
      生理研国際シンポジウム
    • Place of Presentation
      生理学研究所
    • Year and Date
      2014-11-25 – 2014-11-28
    • Related Report
      2014 Research-status Report
    • Invited
  • [Presentation] 風味阻害と嗅覚情報変換チャネル抑制との関係2014

    • Author(s)
      竹内裕子、加藤寛之、倉橋隆
    • Organizer
      近畿生理学談話会
    • Place of Presentation
      兵庫医科大学
    • Year and Date
      2014-10-24
    • Related Report
      2014 Research-status Report
  • [Presentation] 2,4,6-trichloroanisole suppress the channel activity in the olfactory transduction cascade2014

    • Author(s)
      Hiroko Takeuchi, Takashi Kurahashi
    • Organizer
      The Association for Chemoreception Sciences 36th Annual Meeting
    • Place of Presentation
      Bonita Springs, FL, USA
    • Year and Date
      2014-04-09 – 2014-04-12
    • Related Report
      2014 Research-status Report
  • [Book] Taste and Smell2017

    • Author(s)
      Hiroko Takeuchi, Takashi Kurahashi, Dietmar Krautwurst(Ed)
    • Total Pages
      199
    • Publisher
      Springer International Publishing
    • ISBN
      9783319489254
    • Related Report
      2017 Research-status Report
  • [Book] Topics in Medical Chemistry, Taste and Small2017

    • Author(s)
      Takashi Kurahashi, Hiroko Takeuchi, Maik Behrens, Simone Prandi, Wolfgang Meyerhof, Joshua Fletcher, Li Pan, Douglas Kinghon, Brett Boonen, Justyna Startek, Karel Talavera, Patrick Marcinek, Christiane Geithe, Stefano Espinoza, Raul Gainetdinov, Dietmar Krautwurst (Ed)
    • Total Pages
      199
    • Publisher
      Springer
    • Related Report
      2016 Research-status Report
  • [Book] トコトンやさしい人体のしくみの本2015

    • Author(s)
      倉橋隆
    • Total Pages
      159
    • Publisher
      日刊工業新聞社
    • Related Report
      2015 Research-status Report
  • [Book] リッピンコットシリーズ イラストレイテッド生理学  第2章 味覚と嗅覚 日本語訳2014

    • Author(s)
      Richard A. Harvey, Robin R. Preston, Thad E. Wilson 著
    • Total Pages
      640
    • Publisher
      丸善出版
    • Related Report
      2014 Research-status Report
  • [Remarks] 教授・研究室紹介

    • URL

      http://www.humanware.osaka-u.ac.jp/professor/kurahashi_takashi/

    • Related Report
      2015 Research-status Report

URL: 

Published: 2014-04-04   Modified: 2022-02-22  

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