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Development of bioimaging technique for temperature measurement in skeletal muscle myofibers

Research Project

Project/Area Number 19K22800
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 59:Sports sciences, physical education, health sciences, and related fields
Research InstitutionThe University of Electro-Communications

Principal Investigator

Kano Yutaka  電気通信大学, 大学院情報理工学研究科, 教授 (90293133)

Project Period (FY) 2019-06-28 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2020: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2019: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Keywords骨格筋 / 筋細胞 / 細胞内温度 / カルシウムイオン / 筋収縮 / 筋小胞体
Outline of Research at the Start

恒温動物のシステムは厳密にコントロールされた温度下において成立する.わずか1度の温度変動も生体においては大きな影響をもたらす.そのため生体内の温度をできるだけ精密に,素早く評価できる測定モデルの開発が望まれている.本研究は,生きたままの筋細胞の温度変化をリアルタイムに測定する方法の開発を,温度感受性蛍光プローブならびにフォトサーマル(光熱変換)イメージングという2つの異なるモデルからアプローチする.

Outline of Final Research Achievements

Real-time analysis of intracellular temperature distribution leads to the elucidation of various cellular functions. This study was conducted to establish a technique to image temperature distribution in the in vivo environment without removing skeletal muscle from live animals. In the experiment, temperature-sensitive fluorescent probes were loaded into rat muscle cells. A model was constructed to observe the contraction-relaxation cycle by direct calcium ion injection into the cells, and temperature changes were observed in real time. This experimental model revealed that the sarcoplasmic reticulum, a cell organelle that regulates calcium ion in the cytoplasm, plays an important role in the muscle temperature changes during the contraction-relaxation cycle.

Academic Significance and Societal Importance of the Research Achievements

筋細胞内の温度分布がin vivo環境下において画像化できる技術の確立は,わずかな温度変動でも影響される筋代謝,DNAやタンパク質構造の変化との関係性を追求できるモデルを提唱する.そのため,本研究による in vivo温度イメージングモデルの確立は,生理学分野の基礎研究や理学療法への応用などの点で,学術的,臨床的にも利用価値の高いことが予想される.

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (7 results)

All 2021 2020 2019 Other

All Journal Article (4 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 4 results,  Open Access: 3 results) Presentation (1 results) Remarks (2 results)

  • [Journal Article] In vivo Ca2+ dynamics during cooling after eccentric contractions in rat skeletal muscle.2021

    • Author(s)
      Takagi R, Tabuchi A, Asamura T, Hirayama S, Ikegami R, Tanaka Y, Hoshino D, Poole DC, Kano Y.
    • Journal Title

      Am J Physiol Regul Integr Comp Physiol.

      Volume: 320(2) Issue: 2 Pages: R129-R137

    • DOI

      10.1152/ajpregu.00253.2020

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] August Krogh: Muscle capillary function and oxygen delivery2021

    • Author(s)
      Poole David C.、Kano Yutaka、Koga Shunsaku、Musch Timothy I.
    • Journal Title

      Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology

      Volume: 253 Pages: 110852-110852

    • DOI

      10.1016/j.cbpa.2020.110852

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Effects of electrical stimulation‐induced resistance exercise training on white and brown adipose tissues and plasma meteorin‐like concentration in rats2020

    • Author(s)
      Amano Yuhei、Nonaka Yudai、Takeda Reo、Kano Yutaka、Hoshino Daisuke
    • Journal Title

      Physiological Reports

      Volume: 8 Issue: 16

    • DOI

      10.14814/phy2.14540

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Systemic NOS inhibition reduces contracting muscle oxygenation more in intact female than male rats2020

    • Author(s)
      Tabuchi Ayaka、Craig Jesse C.、Hirai Daniel M.、Colburn Trenton D.、Kano Yutaka、Poole David C.、Musch Timothy I.
    • Journal Title

      Nitric Oxide

      Volume: 100-101 Pages: 38-44

    • DOI

      10.1016/j.niox.2020.04.006

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] フォトサーマル顕微鏡を用いた骨格筋線維タイプ別のミトコンドリア形態の評価2019

    • Author(s)
      田中宏樹,中田和明,渡邊大輝,小林孝嘉,狩野豊.
    • Organizer
      第74回日本体力医学会
    • Related Report
      2019 Research-status Report
  • [Remarks] 電気通信大学 基盤理工学専攻 化学生命工学プログラム 狩野研究室

    • URL

      http://www.ecc.es.uec.ac.jp/index.html

    • Related Report
      2021 Annual Research Report 2020 Research-status Report
  • [Remarks] 電気通信大学 基盤理工学専攻 化学生命工学プログラム 狩野研究室

    • URL

      http://www.ecc.es.uec.ac.jp/index.html

    • Related Report
      2019 Research-status Report

URL: 

Published: 2019-07-04   Modified: 2023-01-30  

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