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Astrocytic modulation of tauopathy

Research Project

Project/Area Number 17K16133
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Neurology
Research InstitutionNational Institute for Physiological Sciences

Principal Investigator

Takeda Ikuko  生理学研究所, 基盤神経科学研究領域, 特別協力研究員 (30746300)

Project Period (FY) 2017-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2018: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2017: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Keywordsアストロサイト / DREADDシステム / 経頭蓋直流電気刺激 / DREADD system / アミロイドβ / タウオパチー
Outline of Final Research Achievements

This study is to find a new tool to specifically activate astrocytes for a novel therapeutic target of tauopathy. To induce astrocyte activation, I used hM3Dq(Gq)-DREADD under GFAP promter. Astrocytes exprssed hM3Dq(Gq)-DREADD showed the increase of long-term Ca2+ transients via G protein signaling following CNO intraperitoneal injection. Activated astrocytes increased spine turnover rates in long-term spine imaging during CNO injection, possibly rewiring neural circuits.

Academic Significance and Societal Importance of the Research Achievements

これまで神経疾患に対する治療ターゲットの多くは神経細胞であった。しかし今回私はアストロサイトを新たにターゲットとなり得るかどうかについて検討を行っている。アストロサイトを活性化させることにより特に神経回路への影響を示しており、神経疾患だけでなく異常形態シナプスの多い他の中枢神経系への新たなアプローチ方法にもなりえると考えられる。

Report

(3 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • Research Products

    (2 results)

All 2019

All Presentation (2 results) (of which Int'l Joint Research: 2 results)

  • [Presentation] Astrocytes are a novel target for treatment of the chronic pain2019

    • Author(s)
      Ikuko Takeda
    • Organizer
      FAOPS2019
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] The Roles of Cortical Astrocytes in Neuropathic Pain2019

    • Author(s)
      Ikuko Takeda
    • Organizer
      第9回新潟大学脳研究所共同研究拠点国際シンポジウム
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research

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Published: 2017-04-28   Modified: 2021-12-27  

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