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Elucidation of interaction among shear stress, endothelial cells, and neural stem cells in vascular niche using perfusable microfluidic device

Research Project

Project/Area Number 18K18360
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 90110:Biomedical engineering-related
Research InstitutionThe University of Tokyo

Principal Investigator

Nagata Shogo  東京大学, 生産技術研究所, 特任研究員 (40751441)

Project Period (FY) 2018-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2019: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2018: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywords神経幹細胞 / 血管性ニッチ / シェアストレス / マイクロ流体デバイス / 臓器チップ / 血管内皮細胞 / Organ-on-a-chip / マイクロデバイス
Outline of Final Research Achievements

In brain, vascular structure consisting of endothelial cells (ECs) and extracellular matrix functions as neural stem cell (NSC) niche. The ECs that are stimulated by the blood flow regulate the NSC characteristic including the stemness and differentiation potential. In this study, we constructed an NSC niche model consisting of NSCs derived from human pluripotent stem cells, human ECs, and extracellular matrix on a culture insert, and developed a microfluidic device that can apply shear stress to the ECs. We showed that the shear stress could induce not only the effects of ECs on cell function, but also the enhancement of stemness of the NSCs and suppression of differentiation into glial linage. By using microfabrication technology, we were able to reconstruct a highly biomimetic NSC niche model, and clarify some of the interrelationships between ECs, blood flow, and NSCs.

Academic Significance and Societal Importance of the Research Achievements

神経幹細胞(NSCs)は、血管内皮細胞(ECs)から成るNSCニッチに存在し、中枢神経系(CNS)の維持や組織障害後の再生を担っている。本研究では、これまでほとんど調べられてこなかったECsを介した血流刺激によるNSC制御機構を評価可能な培養システムを構築することに成功し、血流を模した流れ刺激は、ECsの代謝機能活性化を伴い、NSCsの幹細胞マーカーの発現上昇、およびグリア細胞マーカーの抑制を誘導することを見出した。これは、CNS恒常性維持や発生機構の解明のみならず、神経再生や神経疾患の病態機構の解明に寄与することが期待されている。また、神経再生誘導を目的とした創薬分野への貢献も期待できる。

Report

(3 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • Research Products

    (4 results)

All 2019 2018

All Presentation (4 results) (of which Int'l Joint Research: 3 results)

  • [Presentation] Fibrous neural organoid using cell encapsulation technique2019

    • Author(s)
      長田翔伍
    • Organizer
      ISSCR's International Symposia -Stem Cells & Organoids in Development & Disease-
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Organoid engineering: Fibrous neural organoid formation using microfluidic device2019

    • Author(s)
      長田翔伍
    • Organizer
      4th Africa International Biotechnology and Biomedical Conference
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Enhancement of iPSC-derived hepatocyte function through 3D culture using cell fiber technique2018

    • Author(s)
      長田翔伍
    • Organizer
      MicroTAS2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] 細胞ファイバ技術を用いたiPS細胞由来肝細胞の3次元培養法の開発2018

    • Author(s)
      長田翔伍
    • Organizer
      第38回 化学とマイクロ・ナノシステム学会
    • Related Report
      2018 Research-status Report

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Published: 2018-04-23   Modified: 2021-02-19  

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