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How platelet-activating factors and their regulatory systems are involved in the pathogenesis of chronic obstructive pulmonary disease

Research Project

Project/Area Number 22K08275
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 InstitutionYamagata University

Principal Investigator

Inoue Sumito  山形大学, 医学部, 講師 (70466621)

Project Period (FY) 2022-04-01 – 2025-03-31
Project Status Completed (Fiscal Year 2024)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2024: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2023: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2022: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Keywords慢性閉塞性肺疾患 / 血小板活性化因子 / LPLAT9 / 喫煙 / 肺胞マクロファージ / リゾホスファチジルコリンアシル転移酵素 / マクロファージ / 肺気腫 / リゾホスフ ァチジルコリンアシル転移酵素
Outline of Research at the Start

慢性閉塞性肺疾患(COPD)の発症には気管支喘息の関与が大きいとされているが、アレルギー性の炎症がCOPDの病態にどのように関わっているかは不明の点が多い。近年気管支喘息やアレルギー性鼻炎の病態に関わる生理活性物質である血小板活性化因子(PAF)の受容体が、COPDの病態に関与しているという報告があった。我々はPAFおよびその制御系がCOPDの発症や病態形成に重要な役割を演じているという仮説を立て、それを検証することを目的とした。将来的にPAF制御経路を標的とした薬物、遺伝子介入により、COPD発症や増悪の制御に関わる新たな治療法の開発を目指す。

Outline of Final Research Achievements

LPLAT9 was predominant and upregulated in AM, particularly monocyte-derived AM, in patients with COPD. We exposed cigarette smoke (CS) to systemic LPLAT9 knockout (LPALT9-/-) mice. CS increased the number of AM, especially monocyte-derived fraction, which secreted matrix metalloprotease 12 (MMP12). Also, CS augmented LPLAT9 phosphorylation/activation on macrophage and, subsequently, PAF synthesis in mice lung. LPLAT9-/- mice lung reduced PAF production after CS exposure. Intratracheal PAF administration accumulated AM by increasing monocyte chemoattractant protein-1 (MCP1). After CS exposure, AM accumulation and subsequent pulmonary emphysema, a primary pathologic change of COPD, were reduced in LPALT9-/- mice than in LPLAT9+/+ mice. These phenotypes got worsened again by LPLAT9+/+ bone marrow transplantation in LPALT9-/- mice. These results suggest that PAF synthesized by LPLAT9 has an important role in the pathogenesis of COPD.

Academic Significance and Societal Importance of the Research Achievements

本研究は、COPDの発症において血小板活性化因子(PAF)の合成酵素であるLPLAT9が重要な役割を果たすことを示した初の報告である。特に喫煙により誘導される単球由来マクロファージでLPLAT9が活性化し、PAFを介して炎症性細胞の集積とMMP12分泌を促進し、肺気腫進展に関与することを明らかにした。これにより、LPLAT9やPAF経路を標的とした新たなCOPD治療法の開発が期待され、社会的に深刻な慢性呼吸器疾患に対する革新的治療戦略への道を拓く意義がある。

Report

(4 results)
  • 2024 Annual Research Report   Final Research Report ( PDF )
  • 2023 Research-status Report
  • 2022 Research-status Report
  • Research Products

    (15 results)

All 2025 2024 2023 2022

All Journal Article (10 results) (of which Peer Reviewed: 10 results,  Open Access: 4 results) Presentation (5 results)

  • [Journal Article] Lower mean corpuscular hemoglobin levels as a predictive factor of future exacerbations in patients with chronic obstructive pulmonary disease.2025

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

      Respir Investig.

      Volume: 63 Issue: 1 Pages: 183-190

    • DOI

      10.1016/j.resinv.2024.12.008

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Antibiotic treatment for patients with exacerbation of chronic obstructive pulmonary disease: A systematic review and meta-analysis.2024

    • Author(s)
      Suzuki Y, Sato K, Sato S, Inoue S, Shibata Y.
    • Journal Title

      Respir Investig.

      Volume: 62 Issue: 4 Pages: 663-668

    • DOI

      10.1016/j.resinv.2024.05.007

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Clinical inertia in chronic obstructive pulmonary disease.2024

    • Author(s)
      Inoue S.
    • Journal Title

      Respir Investig.

      Volume: 62 Issue: 4 Pages: 608-609

    • DOI

      10.1016/j.resinv.2024.04.007

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Lysophospholipid Acyltransferase 9 Promotes Emphysema Formation via Platelet-activating Factor.2024

    • Author(s)
      Murano H, Inoue S, Hashidate-Yoshida T, Shindou H, Shimizu T, Otaki Y, Minegishi Y, Kitaoka T, Futakuchi M, Igarashi A, Nishiwaki M, Nemoto T, Sato M, Kobayashi M, Sato K, Hanawa T, Miyazaki O, Watanabe M.
    • Journal Title

      Am J Respir Cell Mol Biol.

      Volume: 70 Issue: 6 Pages: 482-492

    • DOI

      10.1165/rcmb.2023-0253oc

    • Related Report
      2024 Annual Research 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 Research-status Report
    • Peer Reviewed / Open Access
  • [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 Research-status Report 2022 Research-status 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
    • Peer Reviewed / Open Access
  • [Journal Article] Adverse reactions to BNT162b2 mRNA COVID-19 vaccine in medical staff with a history of allergy.2022

    • Author(s)
      Inoue S, Igarashi A, Morikane K, Hachiya O, Watanabe M, Kakehata S, Sato S, Ueno Y.
    • Journal Title

      Respiratory Investigation

      Volume: 60 Issue: 2 Pages: 248-255

    • DOI

      10.1016/j.resinv.2021.11.007

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Treatment efficacy of LAMA versus placebo for stable chronic obstructive pulmonary disease: A systematic review and meta-analysis.2022

    • Author(s)
      Suzuki Y, Sato S, Sato K, Inoue S, Shibata Y.
    • Journal Title

      Respiratory Investigation

      Volume: 60 Issue: 1 Pages: 108-118

    • DOI

      10.1016/j.resinv.2021.08.002

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Presentation] COPD患者におけるCONUTスコアと臨床経過についての検討2024

    • Author(s)
      峯岸幸博,名和祥江,宮崎収,古山広大,中野寛之,佐藤建人,小林真紀,佐藤正道,根本貴子,西脇道子,五十嵐朗,井上純人
    • Organizer
      第64回日本呼吸器学会学術講演会
    • Related Report
      2024 Annual Research Report
  • [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 Research-status Report
  • [Presentation] Lysophosphatidylcholine Acyltransferase 2 Promotes Cigarette Smoke Induced Emphysema Via Platelet-activating Factor2023

    • Author(s)
      H. Murano, S. Inoue, O. Miyazaki, T. Hanawa, Y. Minegishi, K. Sato, M. Kobayashi, M. Sato, T. Nemoto, M. Nishiwaki, A. Igarashi, T. Hashidate-Yoshida, H. Shindou, M. Watanabe, T. Shimizu
    • Organizer
      American Thoracic Socirty International Conference 2023
    • Related Report
      2023 Research-status 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

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Published: 2022-04-19   Modified: 2026-01-16  

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