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Mechanistic insights into lactate-induced adaptation and potential applications

Research Project

Project/Area Number 20H04071
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 59020:Sports sciences-related
Research InstitutionThe University of Tokyo

Principal Investigator

Hatta Hideo  東京大学, 大学院総合文化研究科, 教授 (60208535)

Co-Investigator(Kenkyū-buntansha) 北岡 祐  神奈川大学, 人間科学部, 教授 (30726914)
星野 太佑  電気通信大学, 大学院情報理工学研究科, 准教授 (70612117)
Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2023: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2022: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2021: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥5,980,000 (Direct Cost: ¥4,600,000、Indirect Cost: ¥1,380,000)
Keywords乳酸 / ピルビン酸 / 高強度インターバル運動 / エストロゲン / アンドロゲン / 運動 / 骨格筋 / ミトコンドリア / PGC-1α
Outline of Research at the Start

これまでの研究によって乳酸のもつ多様な役割が明らかになりつつある一方で、乳酸のシグナル因子としての役割が体内でどのような代謝環境において選択されるのかは不明である。本研究では、動物実験とヒトを用いた実験を組み合わせ、体内の代謝環境を様々に変化させることで、1)細胞内の乳酸濃度、2)細胞外の乳酸濃度、3)細胞内における乳酸の産生量、のどれが最も細胞の代謝的適応に貢献するかを明らかにし、スポーツ現場での乳酸測定データを最大限に活かした運動トレーニングの提言を目指す。

Outline of Final Research Achievements

This study revealed that lactate enhances mitochondrial respiratory function, and also examined the effects of sex differences in lactate metabolism and sex hormone deficiency. Besides showing that inhibition of lactate transporters reduced locomotor performance in mice, a method was established to calculate lactate production during exercise from blood lactate concentrations. Furthermore, interval exercise experiments with different rest periods showed that even with identical exercises, differences in metabolite concentrations, particularly lactate, may lead to different exercise benefits.

Academic Significance and Societal Importance of the Research Achievements

疲労物質だと誤解されたきた乳酸が、運動パフォーマンスに関わるエネルギー基質であり、ミトコンドリアの質的な変化をもたらす物質であることを示したことの学術的な意義は大きいと考えられる。さらに、血中の乳酸濃度から筋での産生量を算出する方法を確立できたことで、乳酸測定を活かした効率的なトレーニングにつながる可能性を示すことができた。また、乳酸代謝の性差を明らかにすることができたことも社会的な意義に繋がる成果として挙げられる。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • Research Products

    (19 results)

All 2024 2023 2022 2021 2020

All Journal Article (8 results) (of which Peer Reviewed: 8 results,  Open Access: 8 results) Presentation (10 results) (of which Int'l Joint Research: 5 results,  Invited: 1 results) Book (1 results)

  • [Journal Article] Metabolomic responses to high-intensity interval exercise in equine skeletal muscle: effects of rest interval duration2024

    • Author(s)
      Kenya Takahashi, Kazutaka Mukai, Yuji Takahashi, Yusaku Ebisuda, Hideo Hatta, Yu Kitaoka
    • Journal Title

      Journal of Experimental Biology

      Volume: 227 Issue: 4

    • DOI

      10.1242/jeb.246896

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Cooling of male rat skeletal muscle during endurance‐like contraction attenuates contraction‐induced PGC‐1α mRNA expression2023

    • Author(s)
      Hoshino Daisuke、Wada Ryota、Mori Yutaro、Takeda Reo、Nonaka Yudai、Kano Ryotaro、Takagi Ryo、Kano Yutaka
    • Journal Title

      Physiological Reports

      Volume: 11 Issue: 21 Pages: 1-11

    • DOI

      10.14814/phy2.15867

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Sex-specific differences in the metabolic enzyme activity and transporter levels in mouse skeletal muscle during postnatal development2023

    • Author(s)
      Takahashi K, Kitaoka Y, Hatta H.
    • Journal Title

      Appl Physiol Nutr Metab

      Volume: - Issue: 5 Pages: 361-378

    • DOI

      10.1139/apnm-2022-0462

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effects of Endurance Training on Metabolic Enzyme Activity and Transporter Proteins in Skeletal Muscle of Ovariectomized Mice.2023

    • Author(s)
      Takahashi K, Kitaoka Y, Matsunaga Y, Hatta H.
    • Journal Title

      Med Sci Sports Exerc

      Volume: 55 Issue: 2 Pages: 186-198

    • DOI

      10.1249/mss.0000000000003045

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effects of endurance training on metabolic enzyme activity and transporter protein levels in the skeletal muscles of orchiectomized mice2022

    • Author(s)
      Takahashi K, Kitaoka Y, Hatta H.
    • Journal Title

      J Physiol Sci

      Volume: 72 Issue: 1 Pages: 14-14

    • DOI

      10.1186/s12576-022-00839-z

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effect of endurance training and PGC-1α overexpression on calculated lactate production volume during exercise based on blood lactate concentration2022

    • Author(s)
      Reo Takeda, Yudai Nonaka, Katsuyuki Kakinoki, Shinji Miura, Yutaka Kano, Daisuke Hoshino
    • Journal Title

      Scientific Reports

      Volume: 12 Issue: 1 Pages: 1635-1635

    • DOI

      10.1038/s41598-022-05593-1

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Lactate administration does not affect denervation-induced loss of mitochondrial content and muscle mass in mice2021

    • Author(s)
      Kenya Takahashi, Yu Kitaoka, Yutaka Matsunaga, Hideo Hatta
    • Journal Title

      FEBS Open Bio.

      Volume: 11 Issue: 10 Pages: 2836-2844

    • DOI

      10.1002/2211-5463.13293

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effect of post-exercise lactate administration on glycogen repletion and signaling activation in different types of mouse skeletal muscle2020

    • Author(s)
      Kenya Takahashi, Yu Kitaoka, Yutaka Matsunaga, Hideo Hatta
    • Journal Title

      Current Research in Physiology

      Volume: 3 Pages: 34-43

    • DOI

      10.1016/j.crphys.2020.07.002

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Effect of endurance training and PGC‐1α overexpression on calculated lactate production volume during exercise based on blood lactate concentration2023

    • Author(s)
      Reo Takeda
    • Organizer
      第31回日本運動生理学会
    • Related Report
      2023 Annual Research Report
  • [Presentation] ピルビン酸投与が骨格筋ミトコンドリア関連遺伝子のmRNA発現に与える影響2023

    • Author(s)
      安藤泰地, 竹田怜央, 狩野遼太郎, 狩野豊, 星野太佑
    • Organizer
      第31回日本運動生理学会
    • Related Report
      2023 Annual Research Report
  • [Presentation] A new paradigm for the role of lactate as an important metabolic signal regulating mitochondrial biogenesis2023

    • Author(s)
      Takahashi K, Hatta H.
    • Organizer
      The 10th Federation of the Asian and Oceanian Physiological Societies Congress
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Metabolomic analysis of equine skeletal muscle during high-intensity interval exercise: a comparison of two different rest intervals2023

    • Author(s)
      Takahashi K, Mukai K, Takahashi Y, Ebisuda Y, Hatta H, Kitaoka Y.
    • Organizer
      American Physiology Summit 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 持久的トレーニングおよび骨格筋特異的PGC1a過剰発現が乳酸産生に及ぼす影響2021

    • Author(s)
      竹田 怜央, 野中 雄大, 柿木 克之, 三浦 進司, 狩野 豊, 星野 太佑
    • Organizer
      第76回日本体力医学会大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] A method for calculating lactate production rate using blood lactate concentration during exercise in mice2021

    • Author(s)
      Reo Takeda, Yudai Nonaka, Katsuyuki Kakinoki, Yutaka Kano, Daisuke Hoshino
    • Organizer
      Experimental Biology
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Lactate is not the cause of fatigue2020

    • Author(s)
      Hideo Hatta
    • Organizer
      The 2020 Yokohama Sport Conference
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Lactate as a signaling molecule for adaptation2020

    • Author(s)
      Yu Kitaoka
    • Organizer
      The 2020 Yokohama Sport Conference
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] マウスにおける運動中の血中乳酸濃度を用いた乳酸産生量の算出方法を確立する2020

    • Author(s)
      竹田 怜央, 野中 雄大, 柿木 克之, 狩野 豊, 星野 太佑
    • Organizer
      第75回日本体力医学会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 適応をもたらすシグナル因子としての乳酸2020

    • Author(s)
      北岡 祐
    • Organizer
      第75回日本体力医学会
    • Related Report
      2020 Annual Research Report
  • [Book] ミトコンドリアトレーニング ―筋肉中心で考えるトレーニングサイエンス―2024

    • Author(s)
      八田秀雄
    • Total Pages
      190
    • Publisher
      市村出版
    • Related Report
      2023 Annual Research Report

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Published: 2020-04-28   Modified: 2025-01-30  

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