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Elucidating the genetic factors of psychiatric disorders focusing on non-coding regions and intermediate-sized variants

Research Project

Project/Area Number 21K07543
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 52030:Psychiatry-related
Research InstitutionNagoya University

Principal Investigator

Kushima Itaru  名古屋大学, 医学部附属病院, 病院講師 (00732645)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2023: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2022: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2021: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords双極性障害 / 自閉スペクトラム症 / 統合失調症 / CNV / ノンコーディング領域 / ゲノムコピー数バリアント / 構造変異 / 精神疾患
Outline of Research at the Start

自閉スペクトラム症、統合失調症、双極性障害の発症には遺伝要因が強く関与するが、発症に強く影響する変異が同定される患者は少数である。その要因には、1)ヒトゲノムの98%を占めるノンコーディング領域の変異の評価が困難であること、2)従来の方法では中間サイズ(1-50 kb)の構造変異の検出が困難であることが挙げられる。本研究では、ゲノム機能情報やロングリード・シーケンサー技術を用いることで、発症リスクと関連するノンコーディング領域や中間サイズの変異を同定する。さらに同定した変異のin silico解析による病態パスウェイの探索や患者の臨床表現型解析を行い、精神疾患の病態解明や診断法の開発に繋げる。

Outline of Final Research Achievements

We investigated the involvement of genomic copy number variants (CNVs) in three disorders: bipolar disorder, schizophrenia, and autism spectrum disorder. Our results revealed that CNVs known to be associated with neurodevelopmental disorders contribute to the risk of developing all three disorders. Furthermore, our findings suggest that CNVs in non-coding regions, which do not encode proteins, may be involved in the development of schizophrenia and autism spectrum disorder by regulating gene expression in the brain.

Academic Significance and Societal Importance of the Research Achievements

本研究では、CNVが双極性障害、統合失調症、自閉スペクトラム症の発症に関与することを明らかにした。特に、神経発達症と関連するCNVがこれら3疾患で高い頻度で見られることを見出し、精神疾患の遺伝的基盤の理解に大きく貢献した。さらに、ノンコーディング領域のCNVが脳の遺伝子発現を調節することで、統合失調症と自閉スペクトラム症の発症に関与している可能性を示したことは、精神疾患の分子メカニズムに新たな視点をもたらす重要な知見である。本研究の成果は、精神疾患の遺伝的リスクの同定とその機能解明を進め、将来的には、個別化医療の実現や新規治療法の開発につながることが期待される。

Report

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

    (21 results)

All 2024 2023 2022 2021 Other

All Int'l Joint Research (7 results) Journal Article (10 results) (of which Int'l Joint Research: 5 results,  Peer Reviewed: 10 results,  Open Access: 8 results) Presentation (4 results)

  • [Int'l Joint Research] Radboudumc, Department of Human Genetics/University Medical Center Utrecht/University Medical Center Groningen(オランダ)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] Dalhousie University/University of Calgary/University of Toronto(カナダ)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] University of Manchester/Manchester Centre for Genomic Medicine/Queen Elizabeth University Hospital(英国)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] Hospital Universitari Vall D'Hebron/Hospital Universitario Donostia(スペイン)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] Greenwood Genetic Center/Baylor College of Medicine/Dayton Children's Hospital(米国)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research]

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] Chang Gung Memorial Hospital/Chang Gung University/Taipei Veterans General Hospital(その他の国・地域 台湾)

    • Related Report
      2021 Research-status Report
  • [Journal Article] Association between copy number variations in parkin (PRKN) and schizophrenia and autism spectrum disorder: A case-control study2024

    • Author(s)
      Lo T, Yamamoto M(34人中10番目)
    • Journal Title

      Neuropsychopharmacology Reports

      Volume: 44(1) Issue: 1 Pages: 42-50

    • DOI

      10.1002/npr2.12370

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The clinical and molecular spectrum of the KDM6B-related neurodevelopmental disorder2023

    • Author(s)
      Rots Dmitrijs、Jakub Taryn E.、Keung Crystal、Jackson Adam、Banka Siddharth、Pfundt Rolph、de Vries Bert B.A、Kushima Itaru et al.
    • Journal Title

      The American Journal of Human Genetics

      Volume: 110 Issue: 6 Pages: 963-978

    • DOI

      10.1016/j.ajhg.2023.04.008

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Clinical characterization of patients with schizophrenia and 16p13.11 duplication: A case series2023

    • Author(s)
      Kimura Hiroki、Kushima Itaru、Banno Masahiro、Inada Toshiya、Yoshimi Akira、Aleksic Branko、Ozaki Norio
    • Journal Title

      Neuropsychopharmacology Reports

      Volume: - Issue: 2 Pages: 267-271

    • DOI

      10.1002/npr2.12334

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Cross-disorder analysis of genetic and regulatory copy number variations in bipolar disorder, schizophrenia, and autism spectrum disorder2022

    • Author(s)
      Kushima Itaru、Nakatochi Masahiro、Aleksic Branko、Okada Takashi、(中略)、Ozaki Norio
    • Journal Title

      Biological Psychiatry

      Volume: - Issue: 5 Pages: 362-374

    • DOI

      10.1016/j.biopsych.2022.04.003

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Contribution of copy number variations to the risk of severe eating disorders2022

    • Author(s)
      Kushima Itaru、Imaeda Miho、Tanaka Satoshi、Kato Hidekazu、Oya‐Ito Tomoko、Nakatochi Masahiro、Aleksic Branko、Ozaki Norio
    • Journal Title

      Psychiatry and Clinical Neurosciences

      Volume: 76 Issue: 9 Pages: 423-428

    • DOI

      10.1111/pcn.13430

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Treatment‐resistant schizophrenia in patients with 3q29 deletion: A case series of four patients2022

    • Author(s)
      Nawa Yoshihiro、Kushima Itaru、Aleksic Branko、Yamamoto Maeri、Kimura Hiroyuki、Banno Masahiro、Hashimoto Ryota、Ozaki Norio
    • Journal Title

      Psychiatry and Clinical Neurosciences

      Volume: - Issue: 7 Pages: 338-339

    • DOI

      10.1111/pcn.13361

    • Related Report
      2022 Research-status Report 2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Psychiatric patients with a de novo 17q12 deletion: Two case reports2022

    • Author(s)
      Kushima Itaru、Uematsu Mariko、Ishizuka Kanako、Aleksic Branko、Ozaki Norio
    • Journal Title

      Psychiatry and Clinical Neurosciences

      Volume: 76 Issue: 7 Pages: 345-347

    • DOI

      10.1111/pcn.13367

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] X chromosome aneuploidies and schizophrenia: association analysis and phenotypic characterization2022

    • Author(s)
      Kushima Itaru、Aleksic Branko、Kimura Hiroki、Nakatochi Masahiro、Lo Tzuyao、Ikeda Masashi、Arai Makoto、Hashimoto Ryota、Numata Shusuke、Okamura Yasunobu、Obara Taku、Inada Toshiya、Ozaki Norio
    • Journal Title

      Psychiatry and Clinical Neurosciences

      Volume: 76 Issue: 12 Pages: 667-673

    • DOI

      10.1111/pcn.13474

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Identification of rare mutations of the vasoactive intestinal peptide receptor 2 gene in schizophrenia2022

    • Author(s)
      Chen Chia-Hsiang、Cheng Min-Chih、Hu Tsung-Ming、Ping Lieh-Yung、Kushima Itaru、Aleksic Branko
    • Journal Title

      Psychiatric Genetics

      Volume: - Issue: 3 Pages: 125-130

    • DOI

      10.1097/ypg.0000000000000313

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Variable psychiatric manifestations in patients with 16p11.2 duplication: a case series of 4 patients2022

    • Author(s)
      Hayashi Yu、Kushima Itaru、Aleksic Branko、Senaha Tetsu、Ozaki Norio
    • Journal Title

      Psychiatry and Clinical Neurosciences

      Volume: 76 Issue: 3 Pages: 86-88

    • DOI

      10.1111/pcn.13324

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 統合失調症(SCZ)への新視角:最新のゲノム解析技術による洞察2023

    • Author(s)
      久島周
    • Organizer
      第53回日本神経精神薬理学会年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 精神疾患のゲノム解析結果の患者・家族への還元2023

    • Author(s)
      久島周
    • Organizer
      第119回日本精神神経学会学術総会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 頻度の稀なバリアントに基づいた精神疾患の診断~統合失調症(SCZ)患者で見逃されている可能性がある遺伝性疾患~2022

    • Author(s)
      久島周
    • Organizer
      BPCNPNPPP4学会合同年会
    • Related Report
      2022 Research-status Report
  • [Presentation] 統合失調症のゲノム解析と診断法・治療薬開発への展開2021

    • Author(s)
      久島周
    • Organizer
      第43回日本生物学的精神医学会
    • Related Report
      2021 Research-status Report

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

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