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Identifying molecular mechanisms and peripheral biomarkers of cognitive impairment in offspring from diabetic mother (ODM)

Research Project

Project/Area Number 19K24039
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund
Review Section 0906:Surgery related to the biological and sensory functions and related fields
Research InstitutionTokyo Medical University

Principal Investigator

SASAKI Toru  東京医科大学, 医学部, 講師 (30421001)

Project Period (FY) 2019-08-30 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords母体耐糖能異常 / 認知機能障害 / 末梢血中バイオマーカー / トランスクリプトーム解析 / GLP-1受容体
Outline of Research at the Start

妊娠中の母体耐糖能異常は児(Offspring from Diabetic Mother : ODM)に認知機能障害をもたらすことが知られているが、その分子生物学的機序は明らかでなく、早期医学的介入を可能とするバイオマーカーも同定されていない。
本研究ではODMの学習障害に対する出生早期からの医学的介入を可能とする新規バイオマーカーを同定すべく、末梢血中の白血球に対しトランスクリプトーム解析を行う。またGLP-1受容体アゴニストがODMの学習障害に対する新規治療薬となり得るかの検証を行う。

Outline of Final Research Achievements

We created a mouse model of STZ-induced diabetes mellitus complicated pregnancy and identified learning disabilities in its offspring (ODM). Furthermore, we confirmed that there is specific expression of GLP-1 receptors in the prefrontal cortex, which is involved in cognitive function, that there is expression of GLP-1 receptors in parts of the placenta, and that maternal administration of GLP-1 receptor agonists improves cognitive dysfunction in ODMs. In addition, transcriptome analysis of peripheral blood leukocytes was performed to identify novel biomarkers for learning disabilities in ODM. The correlation between the differential expressed genes and the motor learning index obtained from the accelerated rotarod test was evaluated using ensemble machine learning, and an AI-based prediction model for learning disabilities was also constructed.

Academic Significance and Societal Importance of the Research Achievements

妊娠中の母体耐糖能異常は児(ODM)に認知機能障害をもたらすことが知られているが、その分子生物学的機序は明らかでなく、早期医学的介入を可能とするバイオマーカーも同定されていない。
本研究ではマウスODMにおける認知機能障害の分子生物学的機序の一端を明らかとし、母体へのGLP-1受容体アゴニスト投与がODMの認知機能障害を改善することを確認した。また、ODMの認知機能障害に対して出生早期から医学的介入を可能とし得る新規バイオマーカーの予測モデルを構築した。本研究で得られた新たな知見は、マウスのみならずヒトへの臨床応用の可能性を十分に有しており、その学術的、社会的意義は非常に高いものと思われる。

Report

(6 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (5 results)

All 2023 Other

All Int'l Joint Research (4 results) Journal Article (1 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 1 results,  Open Access: 1 results)

  • [Int'l Joint Research] Children's National Medical Center(米国)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] Children’s National Medical Center(米国)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] Children’s National Medical Center(米国)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] Children's National Medical Center(米国)

    • Related Report
      2019 Research-status Report
  • [Journal Article] Alternative splicing events as peripheral biomarkers for motor learning deficit caused by adverse prenatal environments2023

    • Author(s)
      Dutta Dipankar J.、Sasaki Junko、Bansal Ankush、Sugai Keiji、Yamashita Satoshi、Li Guojiao、Lazarski Christopher、Wang Li、Sasaki Toru、Yamashita Chiho、Carryl Heather、Suzuki Ryo、Odawara Masato、Imamura Kawasawa Yuka、Rakic Pasko、Torii Masaaki、Hashimoto-Torii Kazue
    • Journal Title

      Proceedings of the National Academy of Sciences

      Volume: 120 Issue: 50

    • DOI

      10.1073/pnas.2304074120

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research

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Published: 2019-09-03   Modified: 2025-01-30  

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