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Elucidation of the mechanism of sleep masticatory muscle activity using iPS cell-derived 5-HT receptor-expressing neurons.

Research Project

Project/Area Number 17K17191
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Prosthodontics/ Dental materials science and
Research InstitutionShowa University

Principal Investigator

Tozawa Yurie  昭和大学, 歯学部, 兼任講師 (70783356)

Project Period (FY) 2017-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2017: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords睡眠時ブラキシズム / ヒトiPS細胞 / セロトニン2A受容体 / rs6313 / レポーターレンチウイルス / ホールセルパッチクランプ解析 / 一塩基多型 / 疾患特異的iPS細胞 / SNP / iPS細胞 / 5-HT2A受容体 / 遺伝子多型
Outline of Final Research Achievements

The pathogenic mechanism of SB (sleep bruxism) is still unclear. Our previous studies have clarified the relationship between SB and the single nucleotide polymorphism (SNP) of the serotonin 2A receptor gene (HTR2A). In this study, we successfully constructed a functional analysis system specific to human iPS cell-derived HTR2A-positive neurons in order to perform neurophysiological analysis. In the future, if this analysis system can be applied to detect SB-specific electrophysiological parameters, it is expected to lead to the elucidation of the pathogenic mechanism and the development of therapeutic agents.

Academic Significance and Societal Importance of the Research Achievements

睡眠時ブラキシズム(SB)は睡眠関連運動障害の一種であり, その過大な咬合力は患者のQOLを著しく損なう可能性があり, 歯科治療の予後を考える上でSBのマネジメントは非常に重要であると言える.本研究にて構築された解析システムは,ヒトiPS細胞の技術を応用することで.これまで直接的な検証は困難とされていた,脳内に存在するターゲットに対してのアプローチを可能とした.また, 研究のターゲットとしているセロトニン2A受容体は様々な神経系疾患との関連も報告されていることから, 本研究成果は歯科領域のみならず, 医科領域への波及効果も大きいと考えられる.

Report

(6 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (9 results)

All 2021 2019 2018 2017

All Journal Article (2 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 2 results,  Open Access: 1 results) Presentation (7 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] In vitro monitoring of HTR2A-positive neurons derived from human-induced pluripotent stem cells2021

    • Author(s)
      Nakai Kento、Shiga Takahiro、Yasuhara Rika、Sarkar Avijite Kumer、Abe Yuka、Nakamura Shiro、Hoashi Yurie、Kotani Keisuke、Tatsumoto Shoji、Ishikawa Hiroe、Go Yasuhiro、Inoue Tomio、Mishima Kenji、Akamatsu Wado、Baba Kazuyoshi
    • Journal Title

      Scientific Reports

      Volume: 11 Issue: 1 Pages: 15437-15437

    • DOI

      10.1038/s41598-021-95041-3

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Generation of neural cells using iPSCs from sleep bruxism patients with 5-HT2A polymorphism2017

    • Author(s)
      Hoashi Y, Okamoto S, Abe Y, Matsumoto T, Tanaka J, Yoshida Y, Imaizumi K, Mishima K, Akamatsu W, Okano H, Baba K
    • Journal Title

      Journal of Prosthodontic Research

      Volume: 61 Issue: 3 Pages: 242-250

    • DOI

      10.1016/j.jpor.2016.11.003

    • NAID

      130006076280

    • ISSN
      1883-1958, 1883-9207
    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Presentation] 睡眠時ブラキシズム特異的iPS細胞由来GABA作動性神経細胞の電気生理学的評価2019

    • Author(s)
      中井健人, 安部友佳, 帆足有理恵, Avijite Kumer Sarkar, 小溪啓介, 松本貴志, 安原理佳, 美島健二, 中村史朗, 井上富雄, 志賀孝宏, 赤松和土, 馬場一美
    • Organizer
      日本補綴歯科学会 第128回学術大会
    • Related Report
      2019 Research-status Report
  • [Presentation] Patch-clamp recordings of neurons induced from sleep bruxism patient-specific iPSCs2019

    • Author(s)
      Nakai K, Abe Y, Hoashi Y, Nakamura S, Shiga T, Avijite K S, Yasuhara R, Matsumoto T, Kotani K, Inoue T, Mishima K, Akamatsu W, Baba K
    • Organizer
      97th General Session & Exhibition of the IADR
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] ELECTROPHYSIOLOGICAL RECORDINGS OF NEURONS DERIVED FROM SLEEP BRUXISM PATIENT-SPECIFIC IPSCS2019

    • Author(s)
      Nakai K, Abe Y, Shiga T, Hoashi Y, Nakamura S, Avijite K S, Yasuhara R, Matsumoto T, Kotani K, Inoue T, Mishima K, Akamatsu W, Baba K
    • Organizer
      ISSCR 2019 Annual Meeting
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] iPS細胞を用いた睡眠時ブラキシズム病態解析モデルの確立2019

    • Author(s)
      中井健人, 安部友佳, 帆足有理恵, 小溪啓介, 松本貴志, 安原理佳, 美島健二, 中村史朗, 井上富雄, 馬場一美
    • Organizer
      第66回昭和大学学士会総会
    • Related Report
      2019 Research-status Report
  • [Presentation] iPS細胞を用いた睡眠時ブラキシズムの病態解明と創薬に向けて2019

    • Author(s)
      中井健人
    • Organizer
      第8回 補綴若手研究会
    • Related Report
      2018 Research-status Report
  • [Presentation] In vitro disease modeling for sleep bruxism using induced pluripotent stem cells2018

    • Author(s)
      Tozawa Y, Nakai K, Yoneima K, Tanaka J, Matsumoto T, Abe Y, Imaizumi K, Mishima K, AKamatsu W, Okano H, Baba K
    • Organizer
      The 65 th Annual Meeting of Japanese Association for Dental Research
    • Related Report
      2017 Research-status Report
  • [Presentation] iPS細胞研究は歯科補綴学にどのようにいかされるのか?2017

    • Author(s)
      帆足有理恵
    • Organizer
      第126回日本補綴歯科学会
    • Related Report
      2017 Research-status Report

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Published: 2017-04-28   Modified: 2023-01-30  

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