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Analysis for interaction between sweet receptor and taste modifiers

Research Project

Project/Area Number 23792128
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Functional basic dentistry
Research InstitutionKyushu University

Principal Investigator

SANEMATSU Keisuke  九州大学, 歯学研究院, 助教 (70567502)

Project Period (FY) 2011 – 2012
Project Status Completed (Fiscal Year 2012)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2012: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2011: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords味覚 / 甘味受容体 / 味覚修飾物質 / グルマリン / ギムネマ酸 / ミラクリン
Research Abstract

Gymnemic acid (GA) and gurmarin (Gur) are known as selective inhibitors for sweet taste responses in mammals. To clarify the mechanisms of sweet-suppressing effects, we examined potential effects of these inhibitors on HEK293 cell responses heterologously expressed T1r2+T1r3. The results showed that similar to previous studies in humans and mice, GA and Gur inhibited the [Ca2+]i responses of HEK293 cells expressing human and mouse T1r2+T1r3 to various sweeteners and these effects were inhibited by γ- and β-CD, respectevely. We examined the responses of mouse/human chimeras of T1r2 and T1r3 to identify the interaction sites for GA and Gur. Our results suggest that the main target for GA’s action is transmembrane region of human T1r3 and Gur interacts with amino terminal region of mouse T1r3. Our mutation analysis indicate that the molecular basis for strain-specific sensitivity to Gur depends on a site within amino terminal region of mouse T1r2. In our models, GA is predicted to dock to a binding pocket within the transmembrane region of human T1r3 and Gur docks with amino terminal regions of mouse T1r2 and T1r3

Report

(3 results)
  • 2012 Annual Research Report   Final Research Report ( PDF )
  • 2011 Research-status Report
  • Research Products

    (21 results)

All 2013 2012 2011 Other

All Journal Article (3 results) (of which Peer Reviewed: 3 results) Presentation (13 results) (of which Invited: 1 results) Book (4 results) Remarks (1 results)

  • [Journal Article] Angiotensin II modulates salty and sweet taste sensitivities2013

    • Author(s)
      N Shigemura, S Iwata, K Yasumatsu, T Ohkuri, N Horio, et al
    • Journal Title

      Journal of Neuroscience

      Volume: 33(15) Issue: 15 Pages: 6263-6277

    • DOI

      10.1523/jneurosci.5599-12.2013

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Modulation of sweet responses of taste receptor cells2013

    • Author(s)
      Yoshida R, Niki M, Jyotaki M, Sanematsu K, Shigemura N, Ninomiya Y
    • Journal Title

      Semin Cell Dev Biol

      Volume: 24 Issue: 3 Pages: 226-31

    • DOI

      10.1016/j.semcdb.2012.08.004

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Nordihydroguaiaretic acid inhibition of NFATc1 suppresses osteoclastogenesis and arthritis bone destruction in rats.2012

    • Author(s)
      Li YJ, Kukita A, Watanabe T, Takano T, Qu P, Sanematsu K, Ninomiya Y, Kukita T.
    • Journal Title

      Lab Invest.

      Volume: 92 Issue: 12 Pages: 1777-1787

    • DOI

      10.1038/labinvest.2012.134

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Presentation] 甘味受容細胞の感受性抑制機構2012

    • Author(s)
      實松敬介、二ノ宮裕三
    • Organizer
      病態生理学会
    • Place of Presentation
      大分(招待講演)
    • Year and Date
      2012-08-03
    • Related Report
      2012 Final Research Report
  • [Presentation] 肥満者におけるレプチンおよび味覚日内変動の検索2012

    • Author(s)
      實松 敬介、北川 昌幸、中村 由紀、野村 政壽、重村 憲徳、二ノ宮 裕三
    • Organizer
      味と匂学会第46回大会
    • Place of Presentation
      大阪
    • Related Report
      2012 Annual Research Report 2012 Final Research Report
  • [Presentation] 腸管内分泌細胞の味覚感受性に対するカンナビノイドの効果2012

    • Author(s)
      上瀧 将史、實松 敬介、重村 憲徳、二ノ宮 裕三
    • Organizer
      味と匂学会第46回大会
    • Place of Presentation
      大阪
    • Related Report
      2012 Annual Research Report 2012 Final Research Report
  • [Presentation] Lack of diurnal variation of sweet recognition thresholds in over-weight and obese humans2012

    • Author(s)
      Sanematsu K, Kitagawa M, Nakamura Y, Nomura M, Shigemura N, Ninomiya Y
    • Organizer
      ISOT XVI
    • Place of Presentation
      Stockholm, Sweden
    • Related Report
      2012 Annual Research Report 2012 Final Research Report
  • [Presentation] Diurnal variation of plasma leptin levels and taste recognition thresholds in over-weight and obese subjects.2012

    • Author(s)
      Sanematsu K, Kitagawa M, Nakamura Y, Nomura M, Shigemura N, Ninomiya Y .
    • Organizer
      AChemS 2012
    • Place of Presentation
      Huntington Beach, USA
    • Related Report
      2012 Final Research Report
  • [Presentation] Diurnal variation of plasma leptin levels and taste recognition thresholds in over-weight and obese subjects2012

    • Author(s)
      Sanematsu K, Kitagawa M, Nakamura Y, Nomura M, Shigemura N, Ninomiya Y
    • Organizer
      AChemS 2012
    • Place of Presentation
      Huntington Beach, USA
    • Related Report
      2012 Annual Research Report
  • [Presentation] Molecular mechanisms for sweet-suppressing effects of gymnemic acid and gurmarin2011

    • Author(s)
      實松 敬介、二ノ宮 裕三
    • Organizer
      日本味と匂学会第45回大会
    • Place of Presentation
      金沢
    • Year and Date
      2011-10-01
    • Related Report
      2012 Final Research Report
  • [Presentation] 甘味受容体 T1r2/T1r3 に対する味覚修飾物質の相互作用部位の解析2011

    • Author(s)
      實松 敬介、二ノ宮 裕三
    • Organizer
      第53回歯科基礎医学会学術大会・総会
    • Place of Presentation
      岐阜
    • Year and Date
      2011-09-30
    • Related Report
      2012 Final Research Report
  • [Presentation] 甘味抑制物質グルマリンの分子メカニズム2011

    • Author(s)
      實松 敬介、二ノ宮 裕三
    • Organizer
      第34回日本神経科学大会
    • Place of Presentation
      横浜
    • Year and Date
      2011-09-01
    • Related Report
      2012 Final Research Report
  • [Presentation] Molecular mechanisms for sweet-suppressing effects of gymnemic acid and gurmarin2011

    • Author(s)
      實松 敬介、二ノ宮 裕三
    • Organizer
      日本味と匂学会第45回大会(招待講演)
    • Place of Presentation
      金沢
    • Related Report
      2011 Research-status Report
  • [Presentation] 甘味受容体T1R2/T1R3に対する味覚修飾物質の相互作用部位の解析2011

    • Author(s)
      實松 敬介、二ノ宮 裕三
    • Organizer
      第53回歯科基礎医学会学術大会・総会(招待講演)
    • Place of Presentation
      岐阜
    • Related Report
      2011 Research-status Report
  • [Presentation] 甘味抑制物質グルマリンの分子メカニズム2011

    • Author(s)
      實松 敬介、二ノ宮 裕三
    • Organizer
      第34回日本神経科学大会(招待講演)
    • Place of Presentation
      横浜
    • Related Report
      2011 Research-status Report
  • [Presentation] 甘味受容細胞の感受性抑制機構

    • Author(s)
      實松敬介、二ノ宮裕三
    • Organizer
      病態生理学会
    • Place of Presentation
      大分
    • Related Report
      2012 Annual Research Report
    • Invited
  • [Book] 化学受容の科学「味覚受容体」2012

    • Author(s)
      實松 敬介、重村 憲徳、二ノ宮 裕三
    • Publisher
      化学同人
    • Related Report
      2012 Final Research Report
  • [Book] 化学受容の科学:味覚受容体2012

    • Author(s)
      實松 敬介、重村 憲徳、二ノ宮 裕三
    • Publisher
      化学同人
    • Related Report
      2011 Research-status Report
  • [Book] 疾患モデルマウス表現型解析指南「味覚」2011

    • Author(s)
      實松 敬介、二ノ宮 裕三
    • Publisher
      中山書店
    • Related Report
      2012 Final Research Report
  • [Book] 中山書店2011

    • Author(s)
      實松 敬介、二ノ宮 裕三
    • Publisher
      疾患モデルマウス表現型解析指南:味覚
    • Related Report
      2011 Research-status Report
  • [Remarks]

    • URL

      http://www.dent.kyushu-u.ac.jp/sosiki/a06/index.html

    • Related Report
      2012 Final Research Report

URL: 

Published: 2011-08-05   Modified: 2019-07-29  

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