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In vitro venous valve formation by extracting and reconstructing the mechanical cues involved in the valve development

Research Project

Project/Area Number 19H04440
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 90110:Biomedical engineering-related
Research InstitutionThe University of Tokyo

Principal Investigator

Miura Shigenori  東京大学, 生産技術研究所, 特任講師 (70511244)

Co-Investigator(Kenkyū-buntansha) 尾上 弘晃  慶應義塾大学, 理工学部(矢上), 教授 (30548681)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2021: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2020: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2019: ¥6,890,000 (Direct Cost: ¥5,300,000、Indirect Cost: ¥1,590,000)
Keywords静脈弁 / 下肢静脈瘤 / メカニカルストレス / BioMEMS / マイクロ流体デバイス / 血管網 / 再生医療 / 創薬 / 3次元血管網 / 流体シェアストレス / 伸展刺激 / 力学刺激 / Prox1 / MEMS / 血管ネットワーク / 3次元血管モデル / 力学場再構成 / 管腔構造 / 脈動流 / 流体せん断力
Outline of Research at the Start

手足の静脈に存在する弁は,血液の逆流を防ぎ心臓に血液を送り返す「静脈還流」において重要な役割を果たしている.日常的によく見られる「下肢静脈瘤」は,この弁の機能が損なわれることで生じる疾患で,国内だけでも女性を中心に1000万人を超える患者がいると言われているが,再生を伴う抜本的な治療法はない.本研究では,マイクロ流体デバイス内に形成された3次元血管内皮管腔ネットワークを利用して,静脈弁形成関連遺伝子の発現と力学刺激との関連性を明らかにするとともに,適切な力学場を再構成することで,静脈弁のin vitro誘導を試みる

Outline of Final Research Achievements

We have developed a stretching and perfusion culture system of vascular constructs lined with the human saphenous vein endothelial cells, aiming at the in vitro induction of venous valve. The following two types of vascular model have been successfully constructed: (i) a three-dimensional (3D) vascular model formed through the cellular processes of self-tissue organization and (ii) ECM microchannel-based artificial vascular model with branching structure. With the model (i), we constructed a millimeter-sized perfusable 3D blood vessel network utilizing the microfluidic channels guided by the microposts. With model (ii), pulsatile flow can be generated by optimizing the stretching and perfusion conditions, which resulted in the upregulation of CD31 in the cells located at the branching points. These models are expected to be useful to understand the mechanical cues underlying the venous valve formation.

Academic Significance and Societal Importance of the Research Achievements

「下肢静脈瘤」は、静脈弁が破壊されたことにより発症する典型的な静脈疾患で、国内だけでも女性を中心に1000万人を越える患者がいると言われている。現在、ヒトの生体外静脈弁モデルは知られておらず、マウスなどの四足動物では下肢静脈瘤モデルの作製は困難であると考えられる。本研究により得られた知見とヒト血管モデルに対する力学刺激負荷システムは、生体外で弁組織を誘導するための新たな研究基盤として有用であるとともに、創薬研究の進展に貢献するものと期待される。

Report

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

    (13 results)

All 2022 2021 2020 2019

All Journal Article (2 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 2 results,  Open Access: 1 results) Presentation (10 results) (of which Int'l Joint Research: 8 results) Book (1 results)

  • [Journal Article] Microfluidic system for applying shear flow to endothelial cells on culture insert with collagen vitrigel membrane.2021

    • Author(s)
      Morimoto, Y., Nagata, S., Matsumoto, M., Sugawara, K., Miura, S., and Takeuchi
    • Journal Title

      Sensors and Actuators: B. Chemical

      Volume: 348 Pages: 130675-130675

    • DOI

      10.1016/j.snb.2021.130675

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] ECM-based microchannel for culturing in vitro vascular tissues with simultaneous perfusion and stretch.2020

    • Author(s)
      Shimizu, A., Goh,WH., Itai, S., Hashimoto, M., Miura, S. and Onoe, H.
    • Journal Title

      Lab on a chip

      Volume: 20 Issue: 11 Pages: 1917-1927

    • DOI

      10.1039/d0lc00254b

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Protein expression micro-scale mapping analysis of endothelial tissue in in vitro branched vascular model under mechanical stimuli.2022

    • Author(s)
      Muramatsu, J., Shimizu, A., Hashimoto, M., Miura, S., and Onoe, H.
    • Organizer
      MEMS2022
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Pulsatile flow analysis at branched point in ECM-based endothelial vascular model under mechanical stretch.2021

    • Author(s)
      Muramatsu, J., Hashimoto, M., Miura, S., and Onoe, H.
    • Organizer
      MicroTAS 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Real-time single-cell-resolution observation of three-dimensional skeletal muscle tissues under mechanical stimuli2021

    • Author(s)
      K. Kasahara, Y. Kurashina, S. Miura, S. Miyata, H. Onoe
    • Organizer
      MBI 3M satellite poster session in Japan
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Shape retaining and sacrificial molding fabrication method for ECM-based in vitro vascular model2021

    • Author(s)
      J. Muramatsu, W. H. Goh, M. Hashimoto, S. Miura, A. Shimizu, K. Hashimoto, and H. Onoe
    • Organizer
      MEMS2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Real time three-dimensional single cell-resolution monitoring system for observation of dynamic cell behavior under mechanical stimuli.2021

    • Author(s)
      K. Kasahara, Y. Kurashina, S. Miura, S. Miyata, and H. Onoe
    • Organizer
      MEMS2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Shape retaining and sacrificial molding fabrication method for ECM-based in vitro vascular model.2021

    • Author(s)
      J. Muramatsu, W. H. Goh, M. Hashimoto, S. Miura, A. Shimizu, K. Hashimoto, and H. Onoe
    • Organizer
      MEMS2021
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] in vitro 3次元組織培養のための伸展可能なECMマイクロ流体システム2019

    • Author(s)
      清水あずさ、Goh Wei Huang、橋本道尚、三浦重徳、尾上弘晃
    • Organizer
      第58回日本生体医工学会
    • Related Report
      2019 Annual Research Report
  • [Presentation] ECM-based Stretchable Microfluidic System for in vitro 3D Tissue Culture.2019

    • Author(s)
      A. Shimizu, J. Hashimoto, M. Hashimoto, S. Miura, H. Onoe
    • Organizer
      Transducers 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Stretching Motion-driven ECM-based Pulsatile Flow Generator for Mimicking Venous Blood Flow in vivo.2019

    • Author(s)
      Shimizu, A., Goh, Wei H., Itai, S., Hashimoto, M., Miura, S., Onoe, H.
    • Organizer
      MicroTAS 2019 Proceedings
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] In vitro血管モデルにおける力学刺激と細胞応答の可視化2019

    • Author(s)
      橋下健哉、清水あずさ、三浦重徳、尾上弘晃
    • Organizer
      第10回マイクロ・ナノ工学シンポジウム
    • Related Report
      2019 Annual Research Report
  • [Book] Drug Delivery System 第34巻4号2019

    • Author(s)
      三浦重德,竹内昌治
    • Total Pages
      7
    • Publisher
      じほうビジネスサービス
    • Related Report
      2019 Annual Research Report

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Published: 2019-04-18   Modified: 2023-01-30  

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