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Elucidation of hemodynamic factors resulting in chronic inflammation and degenerative changes in the wall of intracranial aneurysms

Research Project

Project/Area Number 20K09367
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 56010:Neurosurgery-related
Research InstitutionNational Cardiovascular Center Research Institute

Principal Investigator

Kataoka Hiroharu  国立研究開発法人国立循環器病研究センター, 病院, 部長 (40359815)

Co-Investigator(Kenkyū-buntansha) 八木 高伸  早稲田大学, 理工学術院, 主任研究員(研究院准教授) (00468852)
中村 匡徳  名古屋工業大学, 工学(系)研究科(研究院), 教授 (20448046)
Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2021: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2020: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords脳動脈瘤 / 血行力学的負荷 / 慢性炎症 / 血行力学的変化 / コラーゲン / 微量元素
Outline of Research at the Start

本研究では、血管壁の脆弱性に寄与する血管壁のコラーゲン生合成低下と微量元素に着目
して脳動脈瘤の増大・破裂のメカニズムを解明する。まず、ラット実験的脳動脈瘤モデルを用いて、電顕などで平滑筋細胞とコラーゲン繊維の変化を経時的に観察し、Computational Fluid Dynamics(CFD)の結果と対照させて、血行力学的因子とコラーゲン生合成低下や重合不全の因果関係を明らかにする。さらに、(1) 微量元素である亜鉛、鉄、(2) 血管の石灰化や炎症を制御するosteopretegerin(OPG)に注目し、それぞれが脳動脈瘤増大や動脈瘤壁の退行性変化に及ぼす影響を解析する。

Outline of Final Research Achievements

In this study, we revealed no particular pattern of wall shear stress at the prospective site of intracranial aneurysms (IAs) using a rat induced IA model. At the IA prospective site, the disruption of internal elastic lamina and the phenotypic change of smooth muscle cells were observed in the ealry phase of IA induction. Using a rat model in which an aneurym is induced in the cervical carotid artery, we demonstrated hemodynamic factors related to IA growth and their links to the accumuation of macrophages. In a rat model in which induced IAs rupture, we revealed the development of vasa vasorum around the rupture site and one of their molecular mechanisms. In a multicenterd case-control study of human IAs, we demonstrated that the bifurcation angle of intracranial arteries and the blood flow volume into IAs were associated with IA growth.

Academic Significance and Societal Importance of the Research Achievements

くも膜下出血は最も予後不良の疾患であり、その主たる原因疾患である脳動脈瘤の発生・増大・破裂のメカニズムの解明は喫緊の課題である。これまで脳動脈瘤壁にマクロファージが集積し慢性炎症が継続することにより、血管壁が菲薄・脆弱化するような退行性変化をおこすこと、血行力学的ストレスが脳動脈瘤の発生・増大・破裂を促進する因子であることは知られていたが、その両者のクロストークを含めた本質的なメカニズムについては明らかでなかった。本研究によりその一端が解明されたことにより、将来的に脳動脈瘤の新規治療法の開発やくも膜下出血の予後の改善につな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

    (25 results)

All 2023 2022 2021 2020

All Journal Article (12 results) (of which Peer Reviewed: 12 results,  Open Access: 5 results) Presentation (13 results) (of which Invited: 8 results)

  • [Journal Article] Hypoxic microenvironment as a crucial factor triggering events leading to rupture of intracranial aneurysm2023

    • Author(s)
      Ono Isao、Kayahara Tomomichi、Kawashima Akitsugu、Okada Akihiro、Miyamoto Susumu、Kataoka Hiroharu、Kurita Hiroki、Ishii Akira、Aoki Tomohiro
    • Journal Title

      Scientific Reports

      Volume: 13 Issue: 1 Pages: 5545-5545

    • DOI

      10.1038/s41598-023-32001-z

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] The bifurcation angle is associated with the progression of saccular aneurysms2022

    • Author(s)
      Shimizu Kampei、Kataoka Hiroharu、Imai Hirohiko、Miyata Takeshi、Okada Akihiro、Sakai Nobuyuki、Chin Masaki、Iwasaki Koichi、Hatano Taketo、Imamura Hirotoshi、Ishibashi Ryota、Goto Masanori、Koyanagi Masaomi、Aoki Tomohiro、Miyamoto Susumu
    • Journal Title

      Scientific Reports

      Volume: 12 Issue: 1 Pages: 7409-7409

    • DOI

      10.1038/s41598-022-11160-5

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Predicting the growth of middle cerebral artery bifurcation aneurysms using differences in the bifurcation angle and inflow coefficient2022

    • Author(s)
      Miyata Takeshi、Kataoka Hiroharu、Shimizu Kampei、Okada Akihiro、Yagi Takanobu、Imamura Hirotoshi、Koyanagi Masaomi、Ishibashi Ryota、Goto Masanori、Sakai Nobuyuki、Hatano Taketo、Chin Masaki、Iwasaki Koichi、Miyamoto Susumu
    • Journal Title

      Journal of Neurosurgery

      Volume: Online ahead of print Issue: 5 Pages: 1-9

    • DOI

      10.3171/2022.8.jns22597

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Identification of The Unique Subtype of Macrophages in Aneurysm Lesions at the Growth Phase2022

    • Author(s)
      Okada Akihiro、Koseki Hirokazu、Ono Isao、Kayahara Tomomichi、Kurita Hiroki、Miyamoto Susumu、Kataoka Hiroharu、Aoki Tomohiro
    • Journal Title

      Journal of Stroke and Cerebrovascular Diseases

      Volume: 31 Issue: 12 Pages: 106848-106848

    • DOI

      10.1016/j.jstrokecerebrovasdis.2022.106848

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Endothelial cell malfunction in unruptured intracranial aneurysm lesions revealed using a 3D-casted mold2022

    • Author(s)
      Ono Isao、Abekura Yu、Kawashima Akitsugu、Oka Mieko、Okada Akihiro、Hara Shintaro、Miyamoto Susumu、Kataoka Hiroharu、Ishii Akira、Yamamoto Kimiko、Aoki Tomohiro
    • Journal Title

      Journal of Neuropathology and Experimental Neurology

      Volume: 82 Issue: 1 Pages: 49-56

    • DOI

      10.1093/jnen/nlac104

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Induction of CCN1 in Growing Saccular Aneurysms: A Potential Marker Predicting Unstable Lesions2021

    • Author(s)
      Shimizu Kampei、Imai Hirohiko、Kawashima Akitsugu、Okada Akihiro、Ono Isao、Miyamoto Susumu、Kataoka Hiroharu、Aoki Tomohiro
    • Journal Title

      Journal of Neuropathology & Experimental Neurology

      Volume: 80 Issue: 7 Pages: 695-704

    • DOI

      10.1093/jnen/nlab037

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Candidate drugs for preventive treatment of unruptured intracranial aneurysms: A cross-sectional study2021

    • Author(s)
      Shimizu Kampei、Imamura Hirotoshi、Tani Shoichi、Adachi Hidemitsu、Sakai Chiaki、Ishii Akira、Kataoka Hiroharu、Miyamoto Susumu、Aoki Tomohiro、Sakai Nobuyuki
    • Journal Title

      PLOS ONE

      Volume: 16 Issue: 2 Pages: e0246865-e0246865

    • DOI

      10.1371/journal.pone.0246865

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Association of zinc administration with growth suppression of intracranial aneurysms via induction of A202021

    • Author(s)
      Hayashi Kosuke、Kataoka Hiroharu、Minami Manabu、Ikedo Taichi、Miyata Takeshi、Shimizu Kampei、Nagata Manabu、Yang Tao、Yamamoto Yu、Yokode Masayuki、Miyamoto Susumu
    • Journal Title

      Journal of Neurosurgery

      Volume: 134 Issue: 3 Pages: 992-998

    • DOI

      10.3171/2020.1.jns192047

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Osteoprotegerin Prevents Intracranial Aneurysm Progression by Promoting Collagen Biosynthesis and Vascular Smooth Muscle Cell Proliferation2020

    • Author(s)
      Miyata Takeshi、Minami Manabu、Kataoka Hiroharu、Hayashi Kosuke、Ikedo Taichi、Yang Tao、Yamamoto Yu、Yokode Masayuki、Miyamoto Susumu
    • Journal Title

      Journal of the American Heart Association

      Volume: 9 Issue: 17

    • DOI

      10.1161/jaha.119.015731

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Hemodynamic Force as a Potential Regulator of Inflammation-Mediated Focal Growth of Saccular Aneurysms in a Rat Model2020

    • Author(s)
      Shimizu Kampei、Kataoka Hiroharu、Imai Hirohiko、Yamamoto Yuto、Yamada Tomohiro、Miyata Haruka、Koseki Hirokazu、Abekura Yu、Oka Mieko、Kushamae Mika、Ono Isao、Miyamoto Susumu、Nakamura Masanori、Aoki Tomohiro
    • Journal Title

      Journal of Neuropathology & Experimental Neurology

      Volume: 80 Issue: 1 Pages: 79-88

    • DOI

      10.1093/jnen/nlaa131

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Hemodynamic and Histopathological Changes in the Early Phase of the Development of an Intracranial Aneurysm2020

    • Author(s)
      KATAOKA Hiroharu、YAGI Takanobu、IKEDO Taichi、IMAI Hirohiko、KAWAMURA Koichi、YOSHIDA Kazumichi、NAKAMURA Masanori、AOKI Tomohiro、MIYAMOTO Susumu
    • Journal Title

      Neurologia medico-chirurgica

      Volume: 60 Issue: 7 Pages: 319-328

    • DOI

      10.2176/nmc.st.2020-0072

    • NAID

      130007873264

    • ISSN
      0470-8105, 1349-8029
    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Eicosapentaenoic acid prevents the progression of intracranial aneurysms in rats2020

    • Author(s)
      Abekura Yu、Ono Isao、Kawashima Akitsugu、Takizawa Katsumi、Koseki Hirokazu、Miyata Haruka、Shimizu Kampei、Oka Mieko、Kushamae Mika、Miyamoto Susumu、Kataoka Hiroharu、Ishii Akira、Aoki Tomohiro
    • Journal Title

      Journal of Neuroinflammation

      Volume: 17 Issue: 1 Pages: 129-129

    • DOI

      10.1186/s12974-020-01802-8

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 脳動脈瘤のBiologyを考慮したSurgical Nuance2023

    • Author(s)
      片岡大治
    • Organizer
      STROKE2023
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 薬剤介入とくも膜下出血発症の関連から示唆される脳動脈瘤の病態と予防的薬物治療の可能性2023

    • Author(s)
      清水寬平
    • Organizer
      STROKE2023
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 脳動脈瘤のエビデンスと実践知2022

    • Author(s)
      片岡大治
    • Organizer
      第42回日本脳神経外科コングレス総会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 薬物治療と脳動脈破裂によるくも膜下出血の発症の関連についてのメタ解析2022

    • Author(s)
      清水寬平
    • Organizer
      STROKE2022
    • Related Report
      2021 Research-status Report
  • [Presentation] 脳動脈瘤の病態と自然歴2021

    • Author(s)
      片岡大治
    • Organizer
      第41回日本脳神経外科コングレス総会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] 脳動脈瘤破裂のメカニズムはどこまでわかっているか2021

    • Author(s)
      片岡大治
    • Organizer
      第30回日本脳ドック学会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] 脳動脈瘤の発生と破裂の分子学的機序2021

    • Author(s)
      片岡大治
    • Organizer
      第80回日本脳神経外科学会総会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] 母血管血流量に対する瘤内血流量の比は小型中大脳動脈瘤の増大破裂に関連する2021

    • Author(s)
      宮田武
    • Organizer
      STROKE2021
    • Related Report
      2020 Research-status Report
  • [Presentation] OsteopotegerinはTGF-β1-Smad2/3経路を介して脳動脈瘤の増大を抑制する2020

    • Author(s)
      宮田武
    • Organizer
      STROKE2020
    • Related Report
      2020 Research-status Report
  • [Presentation] 血管壁からみた脳動脈瘤の病態と治療2020

    • Author(s)
      片岡大治
    • Organizer
      第40回日本脳神経外科コングレス総会
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] 脳動脈瘤の病態と治療 -血行力学的因子と炎症に注目したアプローチ-2020

    • Author(s)
      片岡大治
    • Organizer
      第29回日本脳ドック学会総会
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] 母血管血流量に対する瘤内血流量の比は中大脳動脈瘤の増大破裂に関連する2020

    • Author(s)
      宮田武
    • Organizer
      日本脳神経外科学会第79回学術総会
    • Related Report
      2020 Research-status Report
  • [Presentation] 炎症依存的な動脈瘤増大を制御する因子としての血行力学的負荷:ラット脳動脈瘤における検証2020

    • Author(s)
      清水寬平
    • Organizer
      日本脳神経外科学会第79回学術総会
    • Related Report
      2020 Research-status Report

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

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