Studies on the role of ATP receptor in taste transduction

• Project/Area Number: 24580181
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Food science
• Research Institution: Kyoto University
• Principal Investigator: HAYASHI Yukako 京都大学, (連合)農学研究科(研究院), 准教授 (60212156)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000); Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2013: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000); Fiscal Year 2012: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
• Keywords: 味覚 / 受容機構 / 味細胞 / マウス / 細胞タイプ / 味情報伝達 / 酸味受容 / ATP受容 / III型味細胞 / 味受容細胞 / 情報変換 / 細胞間情報伝達

Outline of Final Research Achievements

Type III taste cells play to receive sour taste and also to receive taste information from type II taste cells through ATP. It had been a great mystery whether a type III taste cell acts both roles or two kinds of type III taste cells share each role separately. Our previous paper suggested that there were the two separate subpopulations of type III taste cells. Here, we focus on sour and ATP receptors . We tried to reveal sour and ATP receptor distributions in taste buds. We also attempted revealing whether ATP-responding cells have a sour receptor or not.
This studiy revealed that there are the two separate subpopulations of type III taste cells (sour-responsive cell and ATP-responsive cell to receive intercellular messenger(ATP) from type II taste cells to type III taste cells).

Research Products

• [Journal Article] マウスⅢ型細胞の酸味およびATP受容解析 (2014)
  • Author(s): 清水英憲 北田亮 松村成暢 林由佳子
  • Journal Title: 日本味と匂学会誌 Volume: 21 Pages: 355-358
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] III型細胞の機能分化と味蕾でのATP受容体分布 (2013)
  • Author(s): 清水 英憲、 北田 亮、 松村成暢、 林 由佳子
  • Journal Title: 日本味と匂学会誌 Volume: 20 Pages: 325-328
  • Peer Reviewed
• [Presentation] The sour taste receptor is not coexpressed with ATP receptors in type III taste cells (2014)
  • Author(s): Hidenori Shimizu, Ryo Kitada, Shigenobu Matsumura, Yukako Hayashi
  • Organizer: 第12回 国際シンポジウム「味覚嗅覚の分子神経機構」
  • Place of Presentation: 福岡県、福岡市、九州大学馬出キャンパス
  • Year and Date: 2014-11-02 – 2014-11-03
• [Presentation] マウスⅢ型細胞の酸味およびATP受容解析 (2014)
  • Author(s): 清水英憲 北田亮 松村成暢 林由佳子
  • Organizer: 日本味と匂学会
  • Place of Presentation: 静岡県、清水市
  • Year and Date: 2014-10-02 – 2014-10-04
• [Presentation] Distributions of type III taste cell markers in taste buds (2013)
  • Author(s): Hidenori Shimizu, Ryo Kitada, Shigenobu Matsumura and Yukako Hayashi
  • Organizer: 第11回国際シンポジウム「味覚嗅覚の分子神経機構」
  • Place of Presentation: 九州大学馬出キャンパス