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Principles and technical applications of odor-induced artificial hibernation

Research Project

Project/Area Number 20K20578
Research Category

Grant-in-Aid for Challenging Research (Pioneering)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 42:Veterinary medical science, animal science, and related fields
Research InstitutionKansai Medical University

Principal Investigator

KOBAYAKAWA Ko  関西医科大学, 医学部, 准教授 (60466802)

Project Period (FY) 2020-07-30 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥26,000,000 (Direct Cost: ¥20,000,000、Indirect Cost: ¥6,000,000)
Fiscal Year 2022: ¥7,800,000 (Direct Cost: ¥6,000,000、Indirect Cost: ¥1,800,000)
Fiscal Year 2021: ¥9,100,000 (Direct Cost: ¥7,000,000、Indirect Cost: ¥2,100,000)
Fiscal Year 2020: ¥9,100,000 (Direct Cost: ¥7,000,000、Indirect Cost: ¥2,100,000)
Keywords先天的恐怖 / 感覚刺激性冬眠 / 人工冬眠・生命保護状態 / 感覚創薬 / チアゾリン類恐怖臭 / TRPA1 / 虚血再灌流障害 / 敗血症 / 人工冬眠 / 生命保護作用 / 生命保護 / 人工冬眠・生命保護誘発臭 / 先天的恐怖情動
Outline of Research at the Start

人工冬眠技術の開発は、緊急患者の治療可能時間の確保、寿命の延長、宇宙開発などに利用可能であると考えられている。実際に、低体温療法には脳などの保護効果がある。しかし、非冬眠動物を効率的に冬眠状態に誘導する技術は未確立である。このような背景で私たちは、マウスを人工冬眠状態・生命保護作用に誘導する極めて強力な匂い分子群を発見した。本研究ではこの新たな生物学現象を司るメカニズムを解明し、実用化を進める。

Outline of Final Research Achievements

We found that thiazoline fear odor (tFO)-stimulation induces an artificial hibernation and life-protective state accompanied by hypothermia and hypometabolism and allows long-term survival in lethal hypoxic and inflammatory conditions. This effect was strongly suppressed in knockout mice of the tFO receptor TRPA1. TFO-stimulation induced protective effects via activation of the brainstem-midbrain pathway. Importantly, induction of protective effects required not only agonist of TRPA1, but also activation of the brainstem-midbrain pathway. Following this principle, we discovered a novel TRPA1 agonist odor molecule that induces extremely potent hypoxic resistance. Furthermore, we demonstrated the therapeutic effects of tFO-stimulation in models of ischemia-reperfusion injury and hypoxic injury.

Academic Significance and Societal Importance of the Research Achievements

本研究などで、先天的恐怖情動を誘導する活性を持つチアゾリン類恐怖臭刺激が、人工冬眠・生命保護状態と名付けた、低体温・低代謝を基盤とし、低酸素耐性や抗炎症作用を伴う、危機状態での生存確率を上昇させる特殊な生理状態を誘導するという予想外の新生命現象が発見された。さらに、この状態の誘導が三叉・迷走神経のTRPA1受容体が適切な種類のアゴニスト匂い分子により誘導されることを始めとした、分子や神経回路レベルでの作用機序も解明された。生物が持つ潜在的な保護能力を匂い分子刺激で誘導し疾患を治療する感覚創薬という革新的な医療技術への応用が切り開かれた。生存は生物の根源目的であり、それへ迫る新概念を確立した。

Report

(3 results)
  • 2022 Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (14 results)

All 2021 2020 Other

All Int'l Joint Research (3 results) Journal Article (5 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 4 results,  Open Access: 5 results) Presentation (5 results) (of which Int'l Joint Research: 3 results,  Invited: 4 results) Book (1 results)

  • [Int'l Joint Research] NIBS/Tsinghua University(中国)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] National Institutes of Health(米国)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] Center for Systems Biology Dresden(ドイツ)

    • Related Report
      2021 Research-status Report
  • [Journal Article] Thiazoline-related innate fear stimuli orchestrate hypothermia and anti-hypoxia via sensory TRPA1 activation2021

    • Author(s)
      Matsuo Tomohiko、Isosaka Tomoko、Hayashi Yuichiro、Tang Lijun、Doi Akihiro、Yasuda Aiko、Hayashi Mikio、Lee Chia-Ying、Cao Liqin、Kutsuna Natsumaro、Matsunaga Sachihiro、Matsuda Takeshi、Yao Ikuko、Setou Mitsuyoshi、Kanagawa Dai、Higasa Koichiro、Ikawa Masahito、Liu Qinghua、Kobayakawa Reiko、Kobayakawa Ko
    • Journal Title

      Nature Communications

      Volume: 12 Issue: 1 Pages: 2074-2074

    • DOI

      10.1038/s41467-021-22205-0

    • Related Report
      2021 Research-status Report 2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Posterior subthalamic nucleus (PSTh) mediates innate fear-associated hypothermia in mice2021

    • Author(s)
      Can Liu, Chia-Ying Lee, Greg Asher, Liqin Cao, Yuka Terakoshi, Peng Cao, Reiko Kobayakawa, Ko Kobayakawa, Katsuyasu Sakurai, Qinghua Liu
    • Journal Title

      Nature Communications

      Volume: 12 Issue: 1 Pages: 2648-2648

    • DOI

      10.1038/s41467-021-22914-6

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Energy‐sparing by 2‐methyl‐2‐thiazoline protects heart from ischaemia/reperfusion injury2021

    • Author(s)
      Nishi Masahiro、Ogata Takehiro、Kobayakawa Ko、Kobayakawa Reiko、Matsuo Tomohiko、Cannistraci Carlo Vittorio、Tomita Shinya、Taminishi Shunta、Suga Takaomi、Kitani Tomoya、Higuchi Yusuke、Sakamoto Akira、Tsuji Yumika、Soga Tomoyoshi、Matoba Satoaki
    • Journal Title

      ESC Heart Failure

      Volume: 9 Issue: 1 Pages: 428-441

    • DOI

      10.1002/ehf2.13732

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Artificial hibernation/life-protective state induced by thiazoline-related innate fear odors2021

    • Author(s)
      Matsuo Tomohiko、Isosaka Tomoko、Tang Lijun、Soga Tomoyoshi、Kobayakawa Reiko、Kobayakawa Ko
    • Journal Title

      Communications Biology

      Volume: 4 Issue: 1 Pages: 101-101

    • DOI

      10.1038/s42003-020-01629-2

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Large-scale calcium imaging with a head-mount axial scanning 3D fluorescence microscope2021

    • Author(s)
      Hayashi Yuichiro、Kobayakawa Ko、Kobayakawa Reiko
    • Journal Title

      bioRxiv

      Volume: -

    • DOI

      10.1101/2021.01.20.427512

    • Related Report
      2020 Research-status Report
    • Open Access
  • [Presentation] Artificial hibernation/life-protective state induced by thiazoline-related innate fear odors via sensory TRPA1 activation2021

    • Author(s)
      Ko Kobayakawa
    • Organizer
      第44回日本神経科学大会/CJK第1回国際会議
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Molecular and neural mechanism of life-protective effects induced by thiazoline-related innate fear odors in mice2021

    • Author(s)
      omohiko Matsuo, Tomoko Isosaka, Reiko Kobayakawa, Ko Kobayakawa
    • Organizer
      第44回日本神経科学大会/CJK第1回国際会議
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] 匂い分子による人工冬眠・生命保護状態の誘導2021

    • Author(s)
      小早川 高
    • Organizer
      低酸素研究会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] Artificial hibernation/life-protective state induced by thiazoline-related innate fear odors2021

    • Author(s)
      Ko Kobayakawa
    • Organizer
      日本味と匂学会第55回大会
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Crisis fate orchestration:先天的恐怖情動誘導性の生命保護作用2020

    • Author(s)
      小早川 高
    • Organizer
      情動研究会2020
    • Related Report
      2020 Research-status Report
    • Invited
  • [Book] 先天的恐怖臭による人工冬眠・生命保護作用の発見2021

    • Author(s)
      1.小早川高
    • Total Pages
      5
    • Publisher
      Clinical Neuroscience
    • Related Report
      2021 Research-status Report

URL: 

Published: 2020-08-03   Modified: 2024-12-25  

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