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Epigenomic variation in the placenta of SGA infants and the generation of SGA-specific placental models

Research Project

Project/Area Number 21K16782
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 56040:Obstetrics and gynecology-related
Research InstitutionKumamoto University (2023)
Tohoku University (2021-2022)

Principal Investigator

Oike Akira  熊本大学, 発生医学研究所, 助教 (90884552)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2023: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2022: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2021: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords低出生体重児(SGA) / ヒト栄養膜幹細胞 / 三次元ヒト胎盤モデル / 栄養膜幹細胞 / 三次元胎盤モデル / 低出生体重児 (SGA) / 胎盤オルガノイド / ヒト胚着床 / 胎盤栄養膜幹(TS)細胞 / 低出生体重児 / ゲノムインプリンティング
Outline of Research at the Start

近年、低出生体重児(SGA)の発症頻度は増加傾向にある。その病因や病態には、胎盤のエピゲノムの変異の関与が指摘されている。しかし、これまでは適切なヒト胎盤モデルの欠如により、疾患の詳細については不明であった。一方、当研究室ではヒト胎盤栄養膜幹(TS)細胞の樹立に世界で初めて成功した。本研究では、SGA胎盤の病態メカニズムを明らかにするため、SGA胎盤の構成細胞のエピゲノム変異の特徴、特にインプリンティング遺伝子のDNAメチル化の特徴について検討する。次に、SGA胎盤の疾患TS細胞モデルを作製し、その細胞特性について明らかにする。さらに、病態を再現する疾患TS細胞の三次元培養の創出に挑戦する。

Outline of Final Research Achievements

In this study, to elucidate the pathological mechanisms of small for gestational age (SGA) placentas, we first purify the constitutive cells of SGA placentas and analyze the epigenomic mutational features of these placental cells, particularly the DNA methylation of genomic imprinting genes. Next, SGA-specific TS cell models derived from SGA placentas are generated and their cellular characteristics are elucidated. Furthermore, we tried to establish the three-dimensional culture of SGA-specific TS cells that recapitulate the pathological conditions of SGA placenta.

Academic Significance and Societal Importance of the Research Achievements

妊娠初期におこる低出生体重児(SGA)胎盤の病因メカニズムをSGA疾患特異的な栄養膜幹(TS)細胞を作製し、分子レベルで解明した。特に、満期胎盤からのTS細胞の樹立はSGAのみならず、妊娠高血圧腎症などのさまざまな周産期疾患の病態を試験管内で再現することができると期待でき、それら疾患の分子メカニズムの解明に大いに役立てることができる。また、疾患特異的なTS細胞は、胎盤の発生不全を原因とするさまざまな周産期疾患の新たな創薬ターゲットの探索や新規治療法の開発に役立つと期待できる。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (8 results)

All 2024 2023 2022 2021

All Journal Article (4 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 4 results,  Open Access: 4 results) Presentation (3 results) (of which Int'l Joint Research: 1 results) Book (1 results)

  • [Journal Article] Modeling embryo-endometrial interface recapitulating human embryo implantation2024

    • Author(s)
      Shibata Shun、Endo Shun、Nagai Luis A. E.、H. Kobayashi Eri、Oike Akira、Kobayashi Norio、Kitamura Akane、Hori Takeshi、Nashimoto Yuji、Nakato Ryuichiro、Hamada Hirotaka、Kaji Hirokazu、Kikutake Chie、Suyama Mikita、Saito Masatoshi、Yaegashi Nobuo、Okae Hiroaki、Arima Takahiro
    • Journal Title

      Science Advances

      Volume: 10 Issue: 8

    • DOI

      10.1126/sciadv.adi4819

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Trophoblast stem cell-based organoid models of the human placental barrier2024

    • Author(s)
      Hori Takeshi、Okae Hiroaki、Shibata Shun、Kobayashi Norio、Kobayashi Eri H.、Oike Akira、Sekiya Asato、Arima Takahiro、Kaji Hirokazu
    • Journal Title

      Nature Communications

      Volume: 15 Issue: 1 Pages: 1-1

    • DOI

      10.1038/s41467-024-45279-y

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] CRISPR screening in human trophoblast stem cells reveals both shared and distinct aspects of human and mouse placental development2023

    • Author(s)
      Takanori Shimizu*, Akira Oike*, Eri H. Kobayashi*, Asato Sekiya, Norio Kobayashi, Shun Shibata, Hirotaka Hamada, Masatoshi Saito, Nobuo Yaegashi, Mikita Suyama, Takahiro Arima, and Hiroaki Okae. *T.S., A.O., and E.H.K. contributed equally to this work.
    • Journal Title

      Proceedings of the National Academy of Sciences

      Volume: 120 Issue: 51

    • DOI

      10.1073/pnas.2311372120

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The microRNA cluster C19MC confers differentiation potential into trophoblast lineages upon human pluripotent stem cells2022

    • Author(s)
      Kobayashi Norio、Okae Hiroaki、Hiura Hitoshi、Kubota Naoto、Kobayashi Eri H.、Shibata Shun、Oike Akira、Hori Takeshi、Kikutake Chie、Hamada Hirotaka、Kaji Hirokazu、Suyama Mikita、Bortolin-Cavaill? Marie-Line、Cavaill? J?r?me、Arima Takahiro
    • Journal Title

      Nature Communications

      Volume: 13 Issue: 1 Pages: 3071-3071

    • DOI

      10.1038/s41467-022-30775-w

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] CRISPRスクリーニングによるヒト栄養膜細胞分化機構の解析2023

    • Author(s)
      大池 輝
    • Organizer
      新学術領域「全能性プログラム」若手勉強会 2023
    • Related Report
      2023 Annual Research Report
  • [Presentation] ヒト栄養膜細胞を用いたシンシチンの研究2022

    • Author(s)
      大池 輝
    • Organizer
      第3回「全能性プログラム」若手勉強会
    • Related Report
      2022 Research-status Report
  • [Presentation] Distinct functions of human Syncytins at the maternal-fetal interface Ape-specific endogenous retrovirus Syncytin-1 mediates cell fusion at the maternal-fetal interface2022

    • Author(s)
      Oike Akira
    • Organizer
      The International Symposium "Totipotency and Germ Cell Development"
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Book] ヒトTS細胞を用いた胎盤疾患モデルの構築2021

    • Author(s)
      大池 輝, 小林 枝里, 小林 記緒, 柴田 峻, 岡江 寛明, 北村 茜, 宮内 尚子, 有馬 隆博
    • Total Pages
      5
    • Publisher
      北隆館/ニューサイエンス社
    • Related Report
      2021 Research-status Report

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Published: 2021-04-28   Modified: 2025-01-30  

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