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Molecular mechanisms of the fetal left-right axis malformations induced by maternal hyperglycemia.

Research Project

Project/Area Number 18K07880
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 52050:Embryonic medicine and pediatrics-related
Research InstitutionKyushu University

Principal Investigator

Kitajima Keiko  九州大学, 医学研究院, 助教 (00332784)

Project Period (FY) 2018-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2018: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords糖尿病母体 / 左右軸 / 心臓発生 / 高血糖 / 左右軸形成 / 糖尿病 / 体軸形成 / Nodalシグナル / Wntシグナル / マウス初期胚 / マウス胚 / 原始結節
Outline of Final Research Achievements

The expression of Nodal and Cerl2 was decreased in the node of 8.0-day embryo exposed to high glucose concentration, and it was due to the reduction of active form of NOTCH (NICD) in the node. We focused on Wnt3a which is required for the expression of NOTCH around the node in 8.0-day embryo, and identified two enhancers, PSE1 and PSE2, for primitive streak specific expression of Wnt3a. We first introduced point mutation in Wnt3a PSE1 by CRISPR/Cas9 system, but there was no significant decrease in expression of Wnt3a in the pimitive streak, and the obtained homozygote pups were viable.

Academic Significance and Societal Importance of the Research Achievements

糖尿病は先天異常を引き起こすリスク要因であり、形態学的には妊娠7週までに糖尿病による先天異常が生じると考えられている。疫学調査によって糖尿病による胎児の左右形態異常が裏付けれており、実験的には糖尿病モデルマウスの胎児にヒトと同様の左右形態異常が発生することが報告されているが、その発生機序については未だ不明である。我々の研究成果は、妊娠糖尿病が左右軸関連の先天異常発生を引き起こす要因を特定することで、エビデンスに基づいた妊婦への血糖管理や栄養指導に役立てることが可能となる。

Report

(6 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (3 results)

All 2020 2019 Other

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

  • [Journal Article] Expression of leukotriene B4 receptor 1 defines functionally distinct DCs that control allergic skin inflammation.2020

    • Author(s)
      Tomoaki Koga, Fumiyuki Sasaki, Kazuko Saeki, Soken Tsuchiya, Toshiaki Okuno, Mai Ohba, Takako Ichiki, Satoshi Iwamoto, Hirotsugu Uzawa, Keiko Kitajima, Chikara Meno, Eri Nakamura, Norihiro Tada, Yoshinori Fukui, Junichi Kikuta, Masaru Ishii, Yukihiko Sugimoto, and Mitsuyoshi Nakao, Takehiko Yokomizo.
    • Journal Title

      Cellular & Molecular Immunology

      Volume: 8 Issue: 6 Pages: 1-13

    • DOI

      10.1038/s41423-020-00559-7

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Sox17 expression in the endocardium precursor cells regulates the mouse heart development2019

    • Author(s)
      Rie Saba, Keiko Kitajima, Yasuinori Shintani, Yoshiakira Kanai, Masami Kanai-Azuma, Chikara Meno, Rumiko Saga, Ken Suzuki, Shigeru Miyagawa, Yoshiki Sawa, Hideya Yamazaki, Kei Yamada, Kenta Yasuhiro
    • Organizer
      日本分子生物学会
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Remarks] 九州大学大学院医学研究院発生再生医学分野 ー研究内容ー

    • URL

      https://www.lab.med.kyushu-u.ac.jp/dev/research/

    • Related Report
      2020 Research-status Report

URL: 

Published: 2018-04-23   Modified: 2024-01-30  

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