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Spacio-temporal analysis of the chemokine system during the course of aortic aneurysm formation

Research Project

Project/Area Number 21K06966
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 49030:Experimental pathology-related
Research InstitutionWakayama Medical University

Principal Investigator

Mukaidaq Naofumi  和歌山県立医科大学, 医学部, 博士研究員 (30182067)

Co-Investigator(Kenkyū-buntansha) 馬場 智久  金沢大学, がん進展制御研究所, 准教授 (00452095)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
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: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywordsケモカイン / 大動脈瘤 / マクロファージ / 動脈硬化 / マウス
Outline of Research at the Start

大動脈瘤の多くは動脈硬化を基盤として発生し、緩徐に進展・増大し、一定以上の大きさになると破裂し、突然死を始めとする重篤な病態を引き起こす。大動脈瘤の進展の抑制と破裂の予防のために、降圧剤・スタチンなどが投与されているが、その効果は限定的である。マクロファージ浸潤をともなう炎症反応を認められる動脈硬化が、大動脈瘤の発生から進行過程に深く関与していることから、本研究計画では、マクロファージの遊走・活性化に関与している種々のケモカインに焦点を当てて、大動脈瘤の進展過程の分子機構を解明し、大動脈瘤進展抑制の新たな治療戦略の開発の基盤形成を目指す。

Outline of Final Research Achievements

Widespread inflammation and subsequent abnormal tissue reorganization lead to aortic aneurysm development. Macrophages and their products, chemokines, have an essential role in abnormal tissue reorganization. Indeed, we previously revealed that CCL3, a chemokine produced by macrophages, acted on macrophages, to dampen aortic aneurysm formation. In this research project, we demonstrated that mice deficient in another macrophage-tropic chemokine receptor genes, CX3CR1 and CCR2, attenuated and promoted aneurysm formation, respectively. Thus, multiple macrophage-tropic chemokines can have differential effects on macrophages at aneurysm and can eventually contribute to aneurysm formation and progression.

Academic Significance and Societal Importance of the Research Achievements

マクロファージに発現しているケモカイン・レセプターのうち、CCR2・CCR5を介するシグナルが大動脈瘤発生に抑制的に作用するのに対して、CX3CR1を介するシグナルは大動脈瘤発生に促進的に作用することが示唆された。このような複数のケモカイン・レセプターによる、大動脈瘤発生過程でのマクロファージ機能の調節機構が明らかになることで、現在有効な治療・予防戦略のない大動脈瘤に対して、マクロファージに作用するケモカイン・システムを標的とした新たな治療戦略の基盤形成が期待されることより、学術的のみならず、医療面においても意義が大きいと考えれる。

Report

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

    (7 results)

All 2024 2023 2022 2021

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

  • [Journal Article] Autophagy Inhibition?induced Cytosolic DNA Sensing Combined with Differentiation Therapy Induces Irreversible Myeloid Differentiation in Leukemia Cells2024

    • Author(s)
      Baba Tomohisa、Tomaru Utano、Hirao Atsushi、Mukaida Naofumi、Johmura Yoshikazu
    • Journal Title

      Cancer Research Communications

      Volume: 4 Issue: 3 Pages: 849-860

    • DOI

      10.1158/2767-9764.crc-23-0507

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Essential Involvement of Neutrophil Elastase in Acute Acetaminophen Hepatotoxicity Using BALB/c Mice2023

    • Author(s)
      Ishida Y, Zhang S, Kuninaka Y, Ishigami A, Nosaka M, Harie I, Kimura A, Mukaida N, Kondo T
    • Journal Title

      Int J Mol Sci

      Volume: 24 Issue: 9 Pages: 7845-7845

    • DOI

      10.3390/ijms24097845

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Immune Mechanisms of Pulmonary Fibrosis with Bleomycin2023

    • Author(s)
      Ishida Yuko、Kuninaka Yumi、Mukaida Naofumi、Kondo Toshikazu
    • Journal Title

      International Journal of Molecular Sciences

      Volume: 24 Issue: 4 Pages: 3149-3149

    • DOI

      10.3390/ijms24043149

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] CX3CL1/CX3CR1 interaction protects against lipotoxicity-induced nonalcoholic steatohepatitis by regulating macrophage migration and M1/M2 status2022

    • Author(s)
      Ni Y, Zhuge F, Ni L, Nagata N, Yamashita T, Mukaida N, Kaneko S, Ota T, and Nagashimada M.
    • Journal Title

      Metabolism

      Volume: 136 Pages: 155272-155272

    • DOI

      10.1016/j.metabol.2022.155272

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] CCR2- and CCR5-mediated macrophage infiltration contributes to glomerular endocapillary hypercellularity in antibody-induced lupus nephritis2021

    • Author(s)
      Zoshima T, Baba T, Tanabe Y, Ishida Y, Nakatani K, Nagata M, Mukaida N, Kawano M.
    • Journal Title

      Rheumatology (Oxford)

      Volume: - Issue: 7 Pages: 3033-3048

    • DOI

      10.1093/rheumatology/keab825

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Presentation] Prevention of CaCl2-induced aortic inflammation and subsequent aneurysm formation by CCL32021

    • Author(s)
      Yuko Ishida
    • Organizer
      MMCB2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Prevention of CaCl2-induced aortic inflammation and subsequent aneurysm formation by CCL32021

    • Author(s)
      Yuko Ishida
    • Organizer
      Cytokines2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research

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

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