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Identification of master regulator of osteoblast differentiation in valve calcification

Research Project

Project/Area Number 19H03740
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 55030:Cardiovascular surgery-related
Research InstitutionEhime University

Principal Investigator

Izutani Hironori  愛媛大学, 医学系研究科, 教授 (90419200)

Co-Investigator(Kenkyū-buntansha) 坂上 倫久  愛媛大学, 医学系研究科, 講師(特定教員) (20709266)
Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥17,160,000 (Direct Cost: ¥13,200,000、Indirect Cost: ¥3,960,000)
Fiscal Year 2022: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2021: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2020: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2019: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Keywords大動脈弁狭窄症 / 石灰化 / 骨芽細胞 / 弁膜症 / AS / 弁間質細胞 / 大動脈弁 / 間質細胞 / トランスレーショナルリサーチ / 心血管
Outline of Research at the Start

これまで我々は、網羅的遺伝子発現解析により石灰化大動脈弁由来の間質細胞に、特異的に高発現する遺伝子群を同定している。これらの遺伝子群は、弁間葉系幹細胞を骨芽細胞に分化させた際にも発現上昇することから、骨芽細胞への分化に必須である可能性が高い。本研究では、これらの遺伝子群を対象に、in vivoおよびin vitroでの機能解析を実施する。また、その分子機能阻害剤を探索することにより、新規大動脈弁狭窄症治療薬としてのリード化合物の導出を目指す。

Outline of Final Research Achievements

There is currently no pharmacological treatment for aortic valve stenosis (AS), and the molecular mechanisms underlying calcification of the aortic valve remain unknown. In this study, we aimed to identify the differentiation mechanism from undifferentiated interstitial cells to osteoblasts and focus on tissue calcification in the pathogenesis of AS. We also aimed to identify proteins that regulate aortic valve calcification and develop inhibitors for their function. We successfully identified 12 master regulatory genes involved in osteoblast differentiation, including Notch signaling ligands. Additionally, we discovered secreted proteins that are downregulated in the vicinity of calcified tissues during the progression of AS, raising expectations for the development of novel preventive and therapeutic drugs for AS.

Academic Significance and Societal Importance of the Research Achievements

本邦における弁膜症の罹患率は年々増加傾向にあり、外科的治療法の発展のみならず新たな薬物治療法の開発は急務である。本研究は大動脈弁狭窄症の中でも特にその重症度と関連する大動脈弁石灰化の分子メカニズム解明に焦点を当てたものである。試験管内で実施した石灰化アッセイを用いて特定した12種類の大動脈弁石灰化関連分子は、今後大動脈弁石灰化を予防または治療する薬剤の開発に応用できる可能性がある。

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (18 results)

All 2023 2022 2021 2020 2019 Other

All Journal Article (5 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 5 results,  Open Access: 2 results) Presentation (9 results) (of which Int'l Joint Research: 2 results,  Invited: 1 results) Remarks (4 results)

  • [Journal Article] Hypoxic Culture Maintains Cell Growth of the Primary Human Valve Interstitial Cells with Stemness2021

    • Author(s)
      Kanno Kaho、Sakaue Tomohisa、Hamaguchi Mika、Namiguchi Kenji、Nanba Daisuke、Aono Jun、Kurata Mie、Masumoto Junya、Higashiyama Shigeki、Izutani Hironori
    • Journal Title

      International Journal of Molecular Sciences

      Volume: 22 Issue: 19 Pages: 10534-10534

    • DOI

      10.3390/ijms221910534

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Pathological Evidence of Native Aortic Valve Injury After Impella Support2021

    • Author(s)
      Higashi Haruhiko、Nishimura Takashi、Aono Jun、Sakaue Tomohisa、Kurata Mie、Izutani Hironori、Yamaguchi Osamu
    • Journal Title

      Circulation: Heart Failure

      Volume: 14 Issue: 2

    • DOI

      10.1161/circheartfailure.120.007571

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Active aneurysm thrombosis after Kawasaki disease in an adult: Insight into anticoagulation therapy2021

    • Author(s)
      Akazawa Yusuke、Inaba Shinji、Sakaue Tomohisa、Kurata Mie、Aono Jun、Yasugi Takumi、Moritani Tomozo、Nishiyama Hikaru、Higaki Takashi、Eguchi Mariko、Yamaguchi Osamu
    • Journal Title

      Journal of Cardiology Cases

      Volume: 23 Issue: 5 Pages: 206-209

    • DOI

      10.1016/j.jccase.2020.11.005

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Valve Interstitial Cell-Specific Cyclooxygenase-1 Associated With Calcification of Aortic Valves.2019

    • Author(s)
      Sakaue T, Hamaguchi M, Aono J, Nakashiro KI, Shikata F, Kawakami N, Oshima Y, Kurata M,?Nanba D, Masumoto J, Yamaguchi O, Higashiyama S, Izutani H.
    • Journal Title

      Ann Thorac Surg

      Volume: S0003-4975 Issue: 1 Pages: 31717-5

    • DOI

      10.1016/j.athoracsur.2019.09.085

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Valve Interstitial Cell-Specific Cyclooxygenase-1 Associated With Calcification of Aortic Valves.2019

    • Author(s)
      Sakaue T, Hamaguchi M, Aono J, Nakashiro KI, Shikata F, Kawakami N, Oshima Y, Kurata M, Nanba D, Masumoto J, Yamaguchi O, Higashiyama S, Izutani H.
    • Journal Title

      Ann Thorac Surg.

      Volume: 19 Pages: 31717-5

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Presentation] 大動脈弁石灰化におけるvalve interstitial cellsの役割2023

    • Author(s)
      坂上倫久、菅野果歩、浪口謙治、黒部裕嗣、福西琢磨、薦田宗則、西村隆、泉谷裕則
    • Organizer
      第53回日本心臓血管外科学会学術総会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 大動脈弁石灰化に寄与する弁間質細胞の特性解析2022

    • Author(s)
      坂上倫久、菅野 果歩, 濱口 美香, 浪口 謙治, 青野 潤, 倉田 美恵, 増本 純也, 東山 繁樹, 泉谷 裕則
    • Organizer
      第51回日本心脈管作動物質学会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Valve interstitial cells-specific inhibins are novel regulator of osteoblast differentia tion in aortic valve2022

    • Author(s)
      Tomohisa Sakaue, Kenji Namiguchi, Jun Aono, Hironori Izutani
    • Organizer
      STS 2022
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 石灰化大動脈弁におけるシクロオキシゲナーゼ陽性細胞の局在解析2021

    • Author(s)
      坂上倫久、濱口美香、浪口謙治、倉田美恵、青野潤、山口修、泉谷裕則
    • Organizer
      第74回日本胸部外科学会定期学術集会
    • Related Report
      2021 Annual Research Report
  • [Presentation] トランスレーショナルリサーチによる循環器疾患発症メカニズムの解明2021

    • Author(s)
      坂上倫久
    • Organizer
      第94回日本生化学会大会 シンポジウム
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Cathepsin-positive macrophages promote stuctural deterioration with calcification2020

    • Author(s)
      Tomohisa Sakaue
    • Organizer
      European Association for Cardio-Thoracic Surgery 2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Identification of the Master Regulators of Aortic Valve Calcification2020

    • Author(s)
      Tomohisa Sakaue
    • Organizer
      The 21st international Vascular Biology Meeting
    • Related Report
      2020 Annual Research Report
  • [Presentation] 大動脈弁狭窄症におけるリソソーム酵素の解析2020

    • Author(s)
      坂上倫久、濱口美香、青野潤、中城公一、倉田美恵、浪口謙治、鹿田文昭、増本純也、山口修、泉谷裕則
    • Organizer
      第73回日本胸部外科学会定期学術集会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 大動脈弁異所性石灰化の分子メカニズムの解明2019

    • Author(s)
      坂上倫久、濱口美香、青野潤、中城公一、倉田美恵、大嶋佑介、東山繁樹、泉谷裕則
    • Organizer
      第4回黒潮カンファレンス
    • Related Report
      2019 Annual Research Report
  • [Remarks] 愛媛大学 医学部 心臓血管・呼吸器外科学HP

    • URL

      https://www.m.ehime-u.ac.jp/school/surgery2/

    • Related Report
      2022 Annual Research Report
  • [Remarks] 愛媛大学 医学部 心臓血管・呼吸器外科学HP

    • URL

      https://www.m.ehime-u.ac.jp/school/surgery2/staff/

    • Related Report
      2021 Annual Research Report
  • [Remarks] 愛媛大学大学院医学系研究科 心臓血管・呼吸器外科学ホームページ

    • URL

      https://www.m.ehime-u.ac.jp/school/surgery2/

    • Related Report
      2020 Annual Research Report
  • [Remarks] 愛媛大学医学部心臓血管・呼吸器外科学HP

    • URL

      https://www.m.ehime-u.ac.jp/school/surgery2/

    • Related Report
      2019 Annual Research Report

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Published: 2019-04-18   Modified: 2024-01-30  

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