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Molecular pathological analysis of autism spectrum disorder caused by haploinsufficiency of a gene encoding histone methyltransferase

Research Project

Project/Area Number 21K15752
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 52030:Psychiatry-related
Research InstitutionInstitute of Physical and Chemical Research

Principal Investigator

Nakamura Takumi  国立研究開発法人理化学研究所, 脳神経科学研究センター, 研究員 (40881123)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2023: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2022: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2021: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords自閉スペクトラム症 / KMT2C / トランスクリプトーム解析 / LSD1阻害剤 / ヒストンメチル化 / 遺伝子改変マウス / iPS細胞 / 精神神経疾患
Outline of Research at the Start

本研究は、ヒストンメチル化に関わる自閉スペクトラム症関連遺伝子のヘテロ欠損により生じる自閉症特徴の発症機序を、遺伝子改変マウスおよびiPS細胞を用いて、ゲノム科学・神経生物学的観点から明らかにすることを目的としている。変異マウスの脳組織を用いた細胞形態解析や、患者から樹立したiPS細胞を使用し、変異マウスで確認された変化がヒト細胞でも再現されるかを検証することにより、ヒストンメチル化異常による自閉症発症機序を明らかにする。

Outline of Final Research Achievements

In this study, we analyzed the molecular pathology of autism spectrum disorder (ASD) caused by haploinsufficiency of the KMT2C gene. We performed transcriptomic analyses using mouse brains derived from Kmt2c heterozygous mutant mice. Our results demonstrated that known ASD genetic risks were enriched among differentially associated genes (DEGs) in the Kmt2c mutant mice. Additionally, we found that the number of DEGs and the enrichment of ASD genetic risks were significantly higher in cells at early stages of neural differentiation. Furthermore, we showed that treatment with an LSD1 inhibitor rescued social deficits and transcriptomic dysregulation in the Kmt2c mutant mice.

Academic Significance and Societal Importance of the Research Achievements

本研究は、ASDおよびヒストンメチル化パスウェイの研究に寄与する新たなモデルマウスを提供するとともに、ヒストン修飾や転写異常が原因の精神神経疾患の大人の患者に対しての治療介入の可能性を示すものである。ASDは、近年のアメリカでの疫学調査によると8歳の子どもの2.8%程度がASDと診断されると報告されているなど、有病率の高い疾患であるため、その治療方法の発展は社会的な意義が大きいと考えられる。

Report

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

    (10 results)

All 2024 2023 2022 2021 Other

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

  • [Journal Article] Transcriptomic dysregulation and autistic-like behaviors in Kmt2c haploinsufficient mice rescued by an LSD1 inhibitor2024

    • Author(s)
      Nakamura Takumi、Yoshihara Toru、Tanegashima Chiharu、Kadota Mitsutaka、Kobayashi Yuki、Honda Kurara、Ishiwata Mizuho、Ueda Junko、Hara Tomonori、Nakanishi Moe、Takumi Toru、Itohara Shigeyoshi、Kuraku Shigehiro、Asano Masahide、Kasahara Takaoki、Nakajima Kazuo、Tsuboi Takashi、Takata Atsushi、Kato Tadafumi
    • Journal Title

      Molecular Psychiatry

      Volume: 29 Issue: 9 Pages: 2888

    • DOI

      10.1038/s41380-024-02479-8

    • URL

      https://localhost/en/publications/0fc5ec78-42d0-4aa0-9f03-8d267d764e27

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Topologically associating domains define the impact of de novo promoter variants on autism spectrum disorder risk2024

    • Author(s)
      Nakamura Takumi、Ueda Junko、Mizuno Shota、Honda Kurara、Kazuno An-a、Yamamoto Hirona、Hara Tomonori、Takata Atsushi
    • Journal Title

      Cell Genomics

      Volume: 4 Issue: 2 Pages: 100488-100488

    • DOI

      10.1016/j.xgen.2024.100488

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] The molecular pathology of schizophrenia: an overview of existing knowledge and new directions for future research2023

    • Author(s)
      Nakamura Takumi、Takata Atsushi
    • Journal Title

      Molecular Psychiatry

      Volume: N/A Issue: 5 Pages: 1868-1889

    • DOI

      10.1038/s41380-023-02005-2

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Functional and behavioral effects of de novo mutations in calcium-related genes in patients with bipolar disorder2021

    • Author(s)
      Nakamura T, Nakajima K, Kobayashi Y, Itohara S, Kasahara T, Tsuboi T, Kato T.
    • Journal Title

      Human Molecular Genetics

      Volume: 30 Issue: 19 Pages: 1851

    • DOI

      10.1093/hmg/ddab152

    • URL

      https://pure.teikyo.jp/en/publications/e3d9f066-a169-4965-83b5-efd1f80e861d

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Manifestation and treatment of autistic-like phenotypes in the heterozygous mutant mice of a histone methyltransferase2023

    • Author(s)
      Nakamura Takumi, Tsuboi Takashi, Takata Atsushi, and Kato Tadafumi.
    • Organizer
      第46回 日本神経科学会年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Transcriptomic dysregulation and autistic-like behaviors in haploinsufficient mice of a histone methyltransferase rescued by a drug treatment2023

    • Author(s)
      Nakamura Takumi, Nakajima Kazuo, Yoshihara Toru, Tanegashima Chiharu, Kadota Mitsutaka, Toyoshima Manabu, Kobayashi Yuki, Honda Kurara, Ueda Junko, Hara Tomonori, Itohara Shigeyoshi, Yoshikawa Takeo, Kuraku Shigehiro, Asano Masahide, Kasahara Takaoki, Tsuboi Takashi, Takata Atsushi, and Kato Tadafumi
    • Organizer
      第45回 日本生物学的精神医学会年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Functional analyses of a histone methyltransferase related to neurodevelopmental disorders2022

    • Author(s)
      Nakamura T, Nakajima K, Yoshihara Y, Takano K, Tanegashima C, Kadota M, Toyoshima M, Kobayashi Y, Ueda J, Itohara S, Yoshikawa T, Kuraku S, Asano S, Kasahara T, Tsuboi T, Takata A, and Kato T.
    • Organizer
      第43回日本神経科学会大会(NEURO2022)
    • Related Report
      2022 Research-status Report
  • [Presentation] 神経発達障害に関連するヒストンメチル化酵素KMT2Cの分子・行動学的解析2021

    • Author(s)
      1.Nakamura T. Nakajima K. Yoshihara T. Tanegashima C. Kadota M. Toyoshima M. Kobayashi Y. Itohara S. Yoshikawa T. Kuraku S. Asano M. Kasahara T. Takata A. Tsuboi T. and Kato T.
    • Organizer
      日本生物学的精神医学会
    • Related Report
      2021 Research-status Report
  • [Remarks] 自閉スペクトラム症の新たなモデルマウスを開発

    • URL

      https://www.riken.jp/press/2024/20240326_1/index.html

    • Related Report
      2023 Annual Research Report
  • [Remarks] ゲノム変異における「バタフライエフェクト」

    • URL

      https://www.riken.jp/press/2024/20240127_1/index.html

    • Related Report
      2023 Annual Research Report

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

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