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Elucidation of the mechanism of increased risk of adult onset cardiovascular disease in low birth weight infants focusing on DNA methylation

Research Project

Project/Area Number 19K08520
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 53020:Cardiology-related
Research InstitutionKumamoto University

Principal Investigator

Arima Yuichiro  熊本大学, 国際先端医学研究機構, 特任准教授 (60706414)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2020: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2019: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywordsケトン体代謝 / ケトン体 / ヒストン修飾 / DNAメチル化 / Hmgcs2 / アセチル化 / HDAC / 出生時低体重 / DOHaD / 低出生体重児
Outline of Research at the Start

低出生体重児として生まれた場合、成人後に循環器疾患を含めた生活習慣病リスクが上昇することが知られている。日本で生まれる子供の約10%が低出生体重児であり、将来的に循環器疾患発症のハイリスク群となることが予想されるが、リスク上昇の機序を明らかにした報告はない。申請者は“周産期の環境ストレスに伴う変化はどのような形で保存され、成人後のリスク上昇に寄与するのか?”、という問いに対して、特にDNAメチル化状態の変化に注目することで、表現型の変化を説明しうる分子実態を同定することを目指す。

Outline of Final Research Achievements

As a result of studies using a low birth weight mouse model, we clarified that ketone body synthesis was enhanced throughout the body during the neonatal period. While ketone bodies are known as an energy source during starvation, recent report reveals its impacts to the epigenetic modifications. Therefore, considering the possibility that ketone body metabolism is involved in epigenome changes such as DNA methylation, we proceeded with the creation of knockout mice for HMG-CoA synthase 2 (Hmgcs2), which is a rate-determining step enzyme for ketone body synthesis. Although the Hmgcs2 KO mouse did not show a lethal phenotype, it was revealed that fatty liver was exacerbated and that ketone body synthesis had a mitochondrial protective effect.

Academic Significance and Societal Importance of the Research Achievements

本研究を通じて、偶然にもケトン体代謝の新たな機能を知ることができた(Arima Y, Nature Metabolism 2021)。現在このモデルを用いてDNAメチル化やヒストン修飾の変化を解析中である。今後ケトン体代謝によるエピゲノム制御機構が明らかになることで、周産期環境ストレスがどのように遺伝子発現に影響し、将来の表現型に変化を加えるのか、明確な分枝基盤に基づいて説明することが可能となる。またケトン体代謝については健康や老化の観点からも注目されており、これらの健康長寿研究にたいしても、新たな解析ツールとして有用である。

Report

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

    (10 results)

All 2022 2021 2020 Other

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

  • [Journal Article] Impact of cerebrovascular comorbidity on prognosis in Japanese patients undergoing PCI: 1-year data from Japanese multicenter registry (KICS).2022

    • Author(s)
      Ahmed K., Arima Y., et. al.
    • Journal Title

      Heart and Vessels

      Volume: in press Issue: 6 Pages: 911-918

    • DOI

      10.1007/s00380-021-01997-7

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] East Asian variant aldehyde dehydrogenase type 2 genotype exacerbates ischemia/reperfusion injury with ST-elevation myocardial infarction in men: possible sex differences2022

    • Author(s)
      Ishida T, Arima Y, Mizuno Y, Harada E, Yamashita T, Sueta D, Sakamoto K, Suzuki S, Kaikita K, Yamada Y, Shimomura H, Oniki K, Saruwatari J, Hokimoto S, Yasue H, Tsujita K.
    • Journal Title

      Heart and Vessels

      Volume: 37 Issue: 2 Pages: 184-193

    • DOI

      10.1007/s00380-021-01907-x

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Murine neonatal ketogenesis preserves mitochondrial energetics by preventing protein hyperacetylation2021

    • Author(s)
      Arima Yuichiro、Nakagawa Yoshiko、Takeo Toru、Ishida Toshifumi、Yamada Toshihiro、et al.
    • Journal Title

      Nature Metabolism

      Volume: 3 Issue: 2 Pages: 196-210

    • DOI

      10.1038/s42255-021-00342-6

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Developmental origins of health and disease theory in cardiology2020

    • Author(s)
      Arima Yuichiro、Fukuoka Hideoki
    • Journal Title

      Journal of Cardiology

      Volume: 20 Issue: 1 Pages: 1-4

    • DOI

      10.1016/j.jjcc.2020.02.003

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] DOHaD学説と心血管疾患 (The concept of DOHaD hypothesis in the cardiovascular field.)2021

    • Author(s)
      有馬勇一郎
    • Organizer
      第124回日本小児科学会学術集会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Ketone body metabolism in health and diseases.2021

    • Author(s)
      Yuichiro Arima
    • Organizer
      “Korean society for vascular biology and medicine, annual meeting 2021”
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Morphogenesis of blood vessels.2021

    • Author(s)
      Yuichiro Arima
    • Organizer
      “ASIA-AUSTRALIA VASCULAR BIOLOGY MEETING 2022”
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 新生児期におけるケトン体合成の意義2021

    • Author(s)
      有馬勇一郎
    • Organizer
      第24・25回 日本病態栄養学会年次集会
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Remarks] ケトン体合成の新たな作用を発見―ケトン体合成によるミトコンドリア保護―

    • URL

      https://www.amed.go.jp/news/release_20210219.html

    • Related Report
      2020 Research-status Report
  • [Remarks] ケトン体合成の新たな作用を発見~ケトン体合成によるミトコンドリア保護~

    • URL

      https://www.kumamoto-u.ac.jp/whatsnew/seimei/20210219

    • Related Report
      2020 Research-status Report

URL: 

Published: 2019-04-18   Modified: 2023-01-30  

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