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Elucidation of the mechanism of cleft palate pathogenesis caused by abnormal epigenetic regulation

Research Project

Project/Area Number 19K10398
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 57070:Developmental dentistry-related
Research InstitutionTokyo Medical and Dental University

Principal Investigator

Higashihori Norihisa  東京医科歯科大学, 大学院医歯学総合研究科, 講師 (50585221)

Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords口蓋裂 / 先天異常 / エピジェネティック / ヒストンメチル化酵素 / 神経堤細胞 / 顎顔面発生
Outline of Research at the Start

口唇裂・口蓋裂は、600人に一人と高頻度に認められる先天異常疾患である。遺伝的要因と環境要因との相互作用によって発症する多因子疾患であるが、発症メカニズムは未だ不明な点が多い。本研究は、神経堤細胞という顎顔面の発生に重要な細胞のみにヒストンメチル化酵素Setdb1をノックアウトさせ、口蓋裂を発症させたマウスを実験モデルとして用い、口蓋におけるSetdb1を中心としたエピジェネティックな遺伝子制御メカニズムを解明し、口蓋裂の発症要因の解明、予防法の開発等の臨床応用への基盤となる研究を行うことを目的とする。

Outline of Final Research Achievements

Recently, it has been reported that epigenetic regulations are involved in the pathogenesis of congenital abnormalities, including cleft palate. The purpose of this study was to investigate how an abnormality in an enzyme involved in histone methylation (SETDB1), one of the epigenetic regulation mechanisms, affects the development of the palate.
When mice were analyzed in which Setdb1 was specifically deleted in cells derived from neural crest cells that differentiate into bone and cartilage in the maxillofacial region, all fetuses showed cleft palate. The reduced proliferative capacity of the cells and decreased expression of genes thought to be important in palatal development were suggested to be factors in the development of cleft palate, indicating that epigenetic regulations are important in palatal development.

Academic Significance and Societal Importance of the Research Achievements

口唇裂・口蓋裂は、高頻度(1/600人)にみられ、その治療には、矯正歯科医を始め、小児歯科医、口腔外科医、形成外科医、言語療法士など、様々な専門家による長期に渡る治療が必要であり、患者、またその両親の身体・精神・経済的負担は大きい。従って、分子生物学見地から口唇裂・口蓋裂の発生機序をより良く解明する事は、発症率および症状の軽減をはかり、患者の負担の軽減につながる。また、従来よりがんと先天異常は共通したシグナルを介することが多いとの報告からも、本研究から得られる知見は顎顔面領域の発生だけでなく、がん研究など他分野の研究にも応用が可能と考えられ、医学全体に多大な進歩をもたらすものと考える。

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

    (6 results)

All 2022 2021 2020

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (4 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] The role of the histone methyltransferase SET domain bifurcated 1 during palatal development2022

    • Author(s)
      Kano Sakurako、Higashihori Norihisa、Thiha Phyo、Takechi Masaki、Iseki Sachiko、Moriyama Keiji
    • Journal Title

      Biochemical and Biophysical Research Communications

      Volume: 598 Pages: 74-80

    • DOI

      10.1016/j.bbrc.2022.01.127

    • Related Report
      2022 Annual Research Report 2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Histone methyltransferase SET domain bifurcated 1 negatively regulates parathyroid hormone/parathyroid hormone-related peptide receptor to control chondrocyte proliferation in Meckel’s cartilage2021

    • Author(s)
      Thiha P, Higashihori N, KanoS, Moriyama K
    • Journal Title

      Archives of Oral Biology

      Volume: 131 Pages: 105251-105251

    • DOI

      10.1016/j.archoralbio.2021.105251

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Presentation] ヒストンメチル化酵素 SETDB1が口蓋発生に与える影響2022

    • Author(s)
      狩野桜子、東堀紀尚、森山啓司
    • Organizer
      第46回 日本口蓋裂学会総会・学術集会.
    • Related Report
      2022 Annual Research Report
  • [Presentation] ヒストンメチル化酵素 SETDB1が口蓋発生に与える影響2022

    • Author(s)
      狩野桜子、東堀紀尚、森山啓司
    • Organizer
      第46回 日本口蓋裂学会総会・学術集会
    • Related Report
      2021 Research-status Report
  • [Presentation] 口蓋の発生過程におけるヒストンメチル化酵素SETDB1の役割2021

    • Author(s)
      狩野桜子、東堀紀尚、ピョティハ、武智正樹、井関祥子、森山啓司
    • Organizer
      第80回日本矯正歯科学会学術大会&第5回国際会議
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Histone methyltransferase SETDB1 negatively regulates PTH/PTHrP receptor in chondrocytes2020

    • Author(s)
      Thiha P, Higashihori N, Kano S, Moriyama K
    • Organizer
      代68回国際歯科研究学会日本部会[JADR]総会・学術大会
    • Related Report
      2020 Research-status Report

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

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