• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Establishment of a research foundation to improve the prognosis of brain development in preterm and low birth weight infants

Research Project

Project/Area Number 21K19453
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 52:General internal medicine and related fields
Research InstitutionKumamoto University

Principal Investigator

Hatakeyama Jun  熊本大学, 発生医学研究所, 助教 (90404350)

Co-Investigator(Kenkyū-buntansha) 土屋 英明  滋賀医科大学, 動物生命科学研究センター, 技術専門職員 (10378440)
Project Period (FY) 2021-07-09 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2022: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2021: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Keywords脳発生 / グリア細胞 / 白質 / 早産児 / 低出生体重児 / 霊長類 / 脳脊髄液
Outline of Research at the Start

日本の出産における早産児の割合は約6%、低出生体重児は約10%も占め、将来的に発達障害の発症リスクが高い。本研究では、早産児、低出生体重児の脳発達の予後改善を目指し、霊長類の脳発達の研究基盤創出とその分子制御機構の解明を目的とする。カニクイザル胚を用いて、妊娠中期・後期の脳発達の現象理解とその発達を制御する因子の同定に挑む。また、カニクイザル早産児モデルの作出を試み、早産児の脳発達障害リスクを軽減する可能性のある因子を同定し、将来、臨床応用できる成果を目指す。

Outline of Final Research Achievements

In this project, we have worked to establish a basis for research on primate brain development and to understand it at the molecular level, aiming to improve the prognosis for brain development in preterm and low birth weight infants. For understand the brain development process during the period corresponding to the time when preterm birth occurs, the histological analysis and three-dimensional MRI images analysis of developing brain were performed in the middle and late gestation period of macaque monkey. Next, we focused on glial cell expansion, a feature of brain development in mid-and late pregnancy in primates including human. As a results, we found several factors potentially involved in glial cell expansion in primate and have shown that at least one of them contributes glial cells expansion. Moreover, a collaborative research system with obstetrics and pediatrics was established to search for factors necessary for human brain development, which is reduced in preterm infants.

Academic Significance and Societal Importance of the Research Achievements

霊長類の脳発生研究は、まだ学問として発展途上である。霊長類胚の試料は希少かつ高額で研究対象とするにはハードルが高く研究推進の壁となっている。本研究で得られたカニクイザル胚の脳発生過程の基礎データは近いうちに公のデータベース化することを目指しており、霊長類研究の推進に大きく寄与できる。また、グリア細胞の増大に関わる分子メカニズムを一部を明らかにしつつあり、ニューロンに比べて理解が遅れているグリア細胞の視点から霊長類の脳発生の理解が進むことも学問的に重要である。さらに、臨床との研究体制も整えており、脳発生の基礎研究が新生児医学に応用される架け橋となる研究と位置付けられる。

Report

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

    (3 results)

All 2021

All Presentation (3 results) (of which Int'l Joint Research: 1 results,  Invited: 2 results)

  • [Presentation] The cradle of cerebrospinal fluids nurturing embryonic neural stem cells2021

    • Author(s)
      Jun Hatakeyama, Haruka Sato, Sanka Yoshimochi, Rika Matsushita, Kenji Shimamura
    • Organizer
      International society for stem cell research ( ISSCR)
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] 霊長類の脳の巨大化の戦略2021

    • Author(s)
      畠山 淳
    • Organizer
      日本動物学会・日本植物学会・日本生態学会 三学会合同熊本例会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] Extrinsic factors promoting cortical expansion in primates2021

    • Author(s)
      Jun Hatakeyama, Haruka Sato, Kenji Shimamura
    • Organizer
      第44回日本分子生物学会
    • Related Report
      2021 Research-status Report
    • Invited

URL: 

Published: 2021-07-13   Modified: 2024-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi