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Establishment of a new therapeutic approach focusing on iron metabolism in COPD

Research Project

Project/Area Number 21K16133
Research Category

Grant-in-Aid for Early-Career Scientists

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

Principal Investigator

Sato Masamichi  山形大学, 医学部, 助教 (90613050)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2023: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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)
Keywords慢性閉塞性肺疾患 / 鉄代謝 / アミノレブリン酸合成酵素 / 遺伝子改変マウス / ヘム蛋白合成 / ALAS-1 / COPD
Outline of Research at the Start

我々は今までのコホート研究、動物実験の結果から『血清鉄の低値はヘム蛋白合成低下が喫煙曝露への炎症応答を増悪させ、COPDの増悪因子となる』と仮説を立てた。本研究では、ヘム蛋白合成経路のアミノレブリン酸合成酵素(Aminolevulinic acid synthase; ALAS)遺伝子改変マウスを用いて、この仮説を検討する。将来的には疾患進行抑制の観点から新たな治療法を確立することを目標とする。

Outline of Final Research Achievements

Based on the background that iron deficiency enhanced smoking-induced inflammation in lung tissue and exacerbated pulmonary function and emphysema, the main pathology of chronic obstructive pulmonary disease, we focused on the heme protein synthesis pathway involved in iron metabolism.
Mice heterozygous null for aminolevulinic acid synthase (ALAS)-1 (A1+/-s), a heme protein synthesis pathway enzyme, were exposed to smoking. After 6 month with smoking exposure, the degree of emphysema was not different from that in the control group. JC-1 staining of alveolar epithelial cell lines after treatment with an ALAS-1 inhibitor showed an increase in mitochondrial membrane potential, indicating inhibition of heme synthesis in mitochondria, but no difference in the degree of apoptosis induced by tobacco extract.

Academic Significance and Societal Importance of the Research Achievements

我々のこれまでの研究では、鉄欠乏状態が肺内の炎症に関わっていることを示してきたが、貧血はそのリスクとはなっていなかったことから、本研究では、鉄欠乏が貧血とは別のメカニズムで肺の炎症と関連している可能性を検討した。結果ヘム蛋白合成経路は喫煙刺激による肺細胞のアポトーシスや肺組織の破壊による肺気腫の形成に関与していない可能性が示唆された。本研究結果よりヘム蛋白の代謝系ではなく、純粋に鉄欠乏状態が喫煙刺激による肺組織の炎症や破壊に関連していることが推察された。慢性閉塞性肺疾患の全身併存症の一つに挙げられる貧血は本疾患の病態の理解、疾患管理に重要な役割を持つことが再認識された。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (12 results)

All 2024 2023 2022 2021

All Journal Article (7 results) (of which Peer Reviewed: 7 results,  Open Access: 4 results) Presentation (5 results)

  • [Journal Article] Participant Selection from the General Japanese Population for Pulmonary Function Tests Using a Questionnaire on Symptoms and Smoking Habits during Annual Health Checkups: The Yamagata-Takahata Study2024

    • Author(s)
      Inoue S, Shibata Y, Miyazaki O, Hanawa T, Minegishi Y, Murano H, Sato K, Kobayashi M, Sato M, Nemoto T, Nishiwaki M, Igarashi A, Ichikawa K, Watanabe T, Watanabe M.
    • Journal Title

      Internal Medicine

      Volume: 63 Issue: 8 Pages: 1053-1059

    • DOI

      10.2169/internalmedicine.1807-23

    • ISSN
      0918-2918, 1349-7235
    • Year and Date
      2024-04-15
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Secretoglobin 3A2 protects lung from developing cigarette smoke-induced pulmonary emphysema2023

    • Author(s)
      Kurotani Reiko、Ono Sotaro、Miyano Yuki、Nakayama Shun、Liu Huaitian、Aibara Daisuke、Sakahara Satoshi、Sato Masamichi、Sato Kento、Inoue Sumito、Shibata Yoko、Lee Maxwell P.、Abe Hiroyuki、Kimura Shioko
    • Journal Title

      The International Journal of Biochemistry & Cell Biology

      Volume: 157 Pages: 106390-106390

    • DOI

      10.1016/j.biocel.2023.106390

    • Related Report
      2023 Annual Research Report 2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] The effect of lifestyle on the mortality associated with respiratory diseases in the general population.2023

    • Author(s)
      Murano H, Inoue S, Sato K, Sato M, Igarashi A, Fujimoto S, Iseki K, Moriyama T, Shibagaki Y, Kasahara M, Narita I, Yamagata K, Tsuruya K, Kondo M, Asahi K, Watanabe T, Konta T, and Watanabe M.
    • Journal Title

      Scientific Reports.

      Volume: 13 Issue: 1 Pages: 8272-8272

    • DOI

      10.1038/s41598-023-34929-8

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effect of hyperhomocysteinemia on a murine model of smoke-induced pulmonary emphysema.2022

    • Author(s)
      Nakano H, Inoue S, Minegishi Y, Igarashi A, Tokairin Y, Yamauchi K, Kimura T, Nishiwaki M, Nemoto T, Otaki Y, Sato M, Sato K, Machida H, Yang S, Murano H, Watanabe M, and Shibata Y.
    • Journal Title

      Scientific Reports

      Volume: 12 Issue: 1 Pages: 12968-12968

    • DOI

      10.1038/s41598-022-16767-2

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Role of CC Chemokine Ligand 17 in Mouse Models of Chronic Obstructive Pulmonary Disease2022

    • Author(s)
      Machida Hiroyoshi、Inoue Sumito、Igarashi Akira、Saitoh Shinichi、Yamauchi Keiko、Nishiwaki Michiko、Nemoto Takako、Otaki Yoichiro、Sato Masamichi、Sato Kento、Nakano Hiroshi、Yang Sujeong、Furuyama Kodai、Murano Hiroaki、Ishibashi Yu、Ota Takahito、Nakayama Takashi、Shibata Yoko、Watanabe Masafumi
    • Journal Title

      American Journal of Respiratory Cell and Molecular Biology

      Volume: 66 Issue: 4 Pages: 428-438

    • DOI

      10.1165/rcmb.2021-0069oc

    • Related Report
      2022 Research-status Report 2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] The Incidence and Risk Analysis of Lung Cancer Development in Patients with Chronic Obstructive Pulmonary Disease: Possible Effectiveness of Annual CT-Screening.2021

    • Author(s)
      Machida H, Inoue S, Shibata Y, Kimura T, Ota T, Ishibashi Y, Murano H, Furuyama K, Yang S, Nakano H, Sato K, Sato M, Nemoto T, Nishiwaki M, Yamauchi K, Igarashi A, Watanabe M.
    • Journal Title

      Int J Chron Obstruct Pulmon Dis.

      Volume: 16 Pages: 739-749

    • DOI

      10.2147/copd.s287492

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Association between low mean corpuscular hemoglobin and prognosis in patients with exacerbation of chronic obstructive pulmonary disease.2021

    • Author(s)
      Sato K, Inoue S, Ishibashi Y, Ota T, Murano H, Furuyama K, Yang S, Machida H, Nakano H, Sato M, Nemoto T, Nishiwaki M, Yamauchi K, Igarashi A, Watanabe M.
    • Journal Title

      Respir Investig.

      Volume: 59 Issue: 4 Pages: 498-504

    • DOI

      10.1016/j.resinv.2021.01.006

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Presentation] COPD患者におけるMCHC値と臨床経過についての検討2023

    • Author(s)
      峯岸幸博、佐藤建人、花輪翁有、宮崎収、邨野浩義、小林真紀、佐藤正道、根本貴子、佐藤千紗、西脇道子、五十嵐朗、井上純人、渡辺昌文
    • Organizer
      第63回日本呼吸器学会学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 血清CCL17/TARCが肺癌薬物治療後の薬剤性肺障害発症の予測因子となりうるか? Can serum CCL17/TARC be a predictor of the development of drug-induced lung injury after drug treatment for lung cancer?2022

    • Author(s)
      宮崎収,佐藤正道,花輪翁有,石橋悠,邨野浩義,峯岸幸博,佐藤建人,根本貴子,西脇道子,山内啓子,五十嵐朗,井上純人,渡辺昌文
    • Organizer
      第62回日本呼吸器学会学術講演会
    • Related Report
      2022 Research-status Report
  • [Presentation] 気管支鏡検査の硫酸アトロピンによる前処置と心拍数,血圧の関連 Relationship between pretreatment of bronchoscopy with atropine sulfate and heart rate and blood pressure2022

    • Author(s)
      花輪翁有,五十嵐朗,宮崎収,石橋悠,邨野浩義,峯岸幸博,佐藤建人,佐藤正道,根本貴子,西脇道子,山内啓子,井上純人,渡辺昌文
    • Organizer
      第62回日本呼吸器学会学術講演会
    • Related Report
      2022 Research-status Report
  • [Presentation] Thymus and activation-regulated chemokine(TARC)KOマウスを用いたCOPDの病態についての検討 Examination of the pathophysiology of COPD using Thymus and activation-regulated chemokine(TARC)KO mouse2021

    • Author(s)
      町田浩祥,太田隆仁,石橋 悠,邨野浩義,古山広大,梁 秀鼎,中野寛之,佐藤建人,根本貴子,西脇道子,山内啓子,佐藤正道,五十嵐朗,井上純人,渡辺昌文
    • Organizer
      第61回日本呼吸器学会学術講演会
    • Related Report
      2021 Research-status Report
  • [Presentation] 肺気腫形成にホモシステインが及ぼす影響の検討 Effects of homocysteine on emphysema formation.2021

    • Author(s)
      邨野浩義,町田浩祥,中野寛之,佐藤建人,佐藤正道,五十嵐朗,井上純人,柴田陽光
    • Organizer
      第61回日本呼吸器学会学術講演会
    • Related Report
      2021 Research-status Report

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Published: 2021-04-28   Modified: 2025-01-30  

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