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Characteristic DNA methylation profles of chorionic villi in recurrent miscarriage

Research Project

Project/Area Number 19K18701
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 56040:Obstetrics and gynecology-related
Research InstitutionNagoya City University

Principal Investigator

MATSUMOTO YOSUKE  名古屋市立大学, 医薬学総合研究院(医学), 助教 (90791294)

Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywords習慣流産 / 絨毛 / 脱落膜 / エピゲノム / 不育症 / エピジェネティクス
Outline of Research at the Start

習慣流産の25%が原因不明とされており、胚発生、分化に重要な役割を持つとされるエピジェネティック機構の異常が流産にどの程度関与しているかを明らかにすることを目的として、不育症患者の流産時の絨毛・脱落膜の網羅的なエピゲノム解析を着想した。本研究では、胎児要因である絨毛と母体要因である脱落膜の双方向から、マイクロアレイを用いた網羅的解析により、流産絨毛と脱落膜のメチル化プロファイル、遺伝子発現プロファイルを作成する。流産群とコントロール群でDNAメチル化に差のある遺伝子群を抽出し、次回妊娠帰結と結び付けることで次回妊娠時の流産リスクを推定することを試みる。

Outline of Final Research Achievements

The cause of recurrent miscarriage remains unknown in approximately 25% of cases. We performed a comprehensive DNA methylation analysis of chorionic villi (fetal origin) and decidua (maternal origin) collected at the time of miscarriage from patients with unexplained recurrent miscarriage and found that the DNA methylation profiles of chorionic villi, but not decidua, were different between the recurrent miscarriage group and normal pregnancy group. We identified SPATS2L as a representative gene that differs in DNA methylation between the recurrent miscarriage group and the normal pregnancy group, and found that SPATS2L protein expression was decreased in the trophoblastic cells in the recurrent miscarriage group. Knockdown of SPATS2L also reduced the invasive and migratory ability of trophoblast cells, suggesting that the normal development of embryos is inhibited.

Academic Significance and Societal Importance of the Research Achievements

習慣流産の原因となりうる一つの因子として、絨毛のエピゲノム異常が示唆されました。従来原因不明と説明していた患者に、研究的にはエピゲノム異常による流産が存在し、研究対象の習慣流産患者5人全員がその後生児獲得できていることから、その場合は次回妊娠での生児獲得の期待値が高いと説明できます。

Report

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

    (5 results)

All 2022 2021 2019

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

  • [Journal Article] Characteristic DNA methylation profiles of chorionic villi in recurrent miscarriage2022

    • Author(s)
      Matsumoto Y, Shinjo K, Mase S, Fukuyo M, Aoki K, Ozawa F, Yoshihara H, Goto S, Kitaori T, Ozaki Y, Takahashi S, Kaneda A, Sugiura-Ogasawara M, Kondo Y.
    • Journal Title

      Scientific Reports

      Volume: 12 Issue: 1 Pages: 11673-11673

    • DOI

      10.1038/s41598-022-15656-y

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] 原因不明習慣流産患者における流産時の絨毛と脱落膜の網羅的DNAメチル化解析2022

    • Author(s)
      松本洋介
    • Organizer
      第4回日本不育症学会学術集会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 習慣流産患者における流産時の絨毛と脱落膜の網羅的 DNA メチル化解析2021

    • Author(s)
      松本 洋介
    • Organizer
      第66回日本生殖医学会学術講演会
    • Related Report
      2021 Research-status Report
  • [Presentation] Genome-wide DNA methylation analysis of chorionic villi and decidua in patients with recurrent miscarriage.2019

    • Author(s)
      松本 洋介
    • Organizer
      第71回日本産科婦人科学会学術講演会
    • Related Report
      2019 Research-status Report
  • [Presentation] Genome-wide DNA methylation profiles of chorionic villi and decidua in patients with unexplained recurrent miscarriage.2019

    • Author(s)
      Yosuke Matsumoto
    • Organizer
      ESHRE 35th Annual meeting
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research

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Published: 2019-04-18   Modified: 2024-01-30  

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