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Elucidation of dynamics in fatty acid composition and serpin A1 expression in the liver associated with deficiency of Elovl6.

Research Project

Project/Area Number 20K08512
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 53030:Respiratory medicine-related
Research InstitutionGunma University

Principal Investigator

Yokoyama Tomoyuki  群馬大学, 大学院保健学研究科, 教授 (70312890)

Co-Investigator(Kenkyū-buntansha) 前野 敏孝  群馬大学, 大学院医学系研究科, 准教授 (00436297)
須永 浩章  足利大学, 工学部, 講師 (10760077)
松井 弘樹  群馬大学, 大学院保健学研究科, 准教授 (20431710)
Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2022: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords遊離脂肪酸 / α1-アンチトリプシン / 肝臓 / 肺気腫 / Elovl6 / αアンチトリプシン / 脂肪酸 / アンチトリプシン
Outline of Research at the Start

申請者らはElovl6欠損マウスにおいて喫煙による気腫化が増悪すること、このマウスではα1-アンチトリプシンの肝臓における発現と血中濃度が著明に低下することを見出した。本研究では、Elovl6による脂肪酸組成バランス変化が肝臓でのα1-アンチトリプシン産生と肺での作用に与える影響を検討することで、肝臓を標的とした新たな肺気腫の病態メカニズムを解明し新規の予防・治療戦略を構築する。

Outline of Final Research Achievements

We investigated whether changes in fatty acid composition associated with deletion of Elongation of long chain fatty acid member 6 (Elovl6) affect the protein dynamics of α1-antitrypsin and the serpinA1 gene expression in the liver.
Consequently, knockdown of Elovl6 into hepatocytes and changes in fatty acid composition affect gene expression and extracellular secretion of α1-antitrypsin, leading to reduced blood levels in systemic and liver-specific Elovl6-deficient mice. was suggested.

Academic Significance and Societal Importance of the Research Achievements

本研究では、Elovl6の欠損に伴う脂肪酸組成の変化が、肝臓でのserpinA1遺伝子、α1-アンチトリプシンタンパクの動態にどのように影響するかを検討した。その結果、肝細胞へのElovl6のノックダウンおよび脂肪酸組成の変化がα1-アンチトリプシンの遺伝子発現および細胞外分泌に影響し、これにより全身および肝臓特異的Elovl6欠損マウスにおける血中濃度の低下を引き起こす可能性が示唆された。したがって、肝臓での脂肪酸バランス変化が血中のα1-アンチトリプシン活性を制御することで肺疾患の発症・進展に起因することが示唆され、肺気腫の新たな治療法の開発に繋がることが期待される。

Report

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

    (11 results)

All 2023 2022 2021 2020

All Journal Article (4 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 4 results,  Open Access: 4 results) Presentation (7 results) (of which Int'l Joint Research: 5 results)

  • [Journal Article] Ketone body and FGF21 coordinately regulate fastibg-induced oxidative stress response in the heart2022

    • Author(s)
      Ryo Kawakami, Hiroaki Sunaga, Tatsuya Iso, Ryosuke Kaneko, Norimichi Koitabashi, Masaru Obokata, Tomonari Harada, Hiroki Matsui, Tomoyuki Yokoyama, Masahiko KUrabayashi
    • Journal Title

      Scientific Reports

      Volume: 12 Issue: 1 Pages: 7338-7338

    • DOI

      10.1038/s41598-022-10993-4

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] FABP5 Is a Sensitive Marker for Lipid-Rich Macrophages in the Luminal Side of Atherosclerotic Lesions2021

    • Author(s)
      Umbarawan Yogi、Enoura Aiko、Ogura Harumi、Sato Tomohito、Horikawa Makoto、Ishii Tomoaki、Sunaga Hiroaki、Matsui Hiroki、Yokoyama Tomoyuki、Kawakami Ryo、Maeno Toshitaka、Setou Mitsutoshi、Kurabayashi Masahiko、Iso Tatsuya
    • Journal Title

      International Heart Journal

      Volume: 62 Issue: 3 Pages: 666-676

    • DOI

      10.1536/ihj.20-676

    • NAID

      130008045574

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] DPP-4 inhibitor induces FGF21 expression via sirtuin 1 signaling and improves myocardial energy metabolism2020

    • Author(s)
      Furukawa Nozomi、Koitabashi Norimichi、Matsui Hiroki、Sunaga Hiroaki、Umbarawan Yogi、Syamsunarno Mas Rizky A. A.、Yamaguchi Aiko、Obokata Masaru、Hanaoka Hirofumi、Yokoyama Tomoyuki、Kurabayashi Masahiko
    • Journal Title

      Heart and Vessels

      Volume: 36 Issue: 1 Pages: 136-146

    • DOI

      10.1007/s00380-020-01711-z

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Reduced fatty acid uptake aggravates cardiac contractile dysfunction in streptozotocin-induced diabetic cardiomyopathy2020

    • Author(s)
      Umbarawan Yogi、Kawakami Ryo、Syamsunarno Mas Rizky A. A.、Koitabashi Norimichi、Obinata Hideru、Yamaguchi Aiko、Hanaoka Hirofumi、Hishiki Takako、Hayakawa Noriyo、Sunaga Hiroaki、Matsui Hiroki、Kurabayashi Masahiko、Iso Tatsuya
    • Journal Title

      Scientific Reports

      Volume: 10(1) Issue: 1 Pages: 20809-20809

    • DOI

      10.1038/s41598-020-77895-1

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Comparison between urinary fatty acid binding protein 1 and neutrophil gelatinase-associated lipocalin in acetaminophen-induced acute kidney injury in mice.2023

    • Author(s)
      Rina Tanabe, Hiroki Matsui, Ryo Kawakami, Tomoyuki Yokoyama, Masahiko Kurabayashi, Hideki Ishii, Tatsuya Iso.
    • Organizer
      第87回日本循環器学会学術集会
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Deletion of fatty acid synthase in vascular smooth muscle cells attenuates neointima formation after vascular injury in mice.2023

    • Author(s)
      Yuki Satoh, Hiroki Matsui, Hiroaki Sunaga, Ryo Kawakami, Tatsuya Iso, Hiedeki Ishi, Tomoyuki Yokoyama, Masahiko Kurabayashi.
    • Organizer
      第87回日本循環器学会学術集会
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Inflammatory cytokine production by visceral fat in heart failure with preserved ejection fraction.2023

    • Author(s)
      Reika Nagata, Masaru Obokata, Hiroki Matsui, Hiroaki Sunaga, Ryo Kawakami, Tomonari Harada, Tatsuya Iso, Tomoyuki Yokoyama, Hideki Ishii
    • Organizer
      第87回日本循環器学会学術集会
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Genetic deletion of Elovl6 in cardiac fibroblast attenuates fibrotic response during pressure overload in mice.2023

    • Author(s)
      Hiroaki Sunaga, Hiroki Matsui, Sayaka Tadaki, Yogi Umbarawan, Nozomi Furukawa, Ryo Kawakami, Tatsuya Iso, Norimichi Koitabashi, Takashi Matsuzaka, Hitoshi Shimano, Tomoyuki Yokoyama, Hideki Ishii, Masahiko Kurabayashi.
    • Organizer
      第87回日本循環器学会学術集会
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 慢性閉塞性肺疾患および特発性肺線維症患者における血中脂肪酸組成の解析.2020

    • Author(s)
      松井 弘樹, 桑原 夏海, 前野 敏孝, 須永 浩章, 倉林 正彦, 横山 知行.
    • Organizer
      第27回日本未病学会学術総会
    • Related Report
      2020 Research-status Report
  • [Presentation] 急性心臓イベントにおける線維芽細胞増殖因子21(FGF21)の有用性に関する検討2020

    • Author(s)
      須永 浩章、松井 弘樹、横山 知行、倉林 正彦
    • Organizer
      第69回日本医学検査学会
    • Related Report
      2020 Research-status Report
  • [Presentation] Deranged fatty acid composition by Elovl6-knockout induces cardioprotective mechanism during pressure overload: a Potential New Therapeutic Target for Heart Failure.2020

    • Author(s)
      忠木 沙耶香, 松井 弘樹, 須永 浩章, 古川 希, 川上 亮, 磯 達也, 小板橋 紀通, 松坂 賢, 島野 仁, 横山 知行, 倉林 正彦
    • Organizer
      第84回日本循環器学会総会・学術集会
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research

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Published: 2020-04-28   Modified: 2024-01-30  

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