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Exploring novel genes causing epilepsy by next-generation sequencing analysis

Research Project

Project/Area Number 19K17307
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 52050:Embryonic medicine and pediatrics-related
Research InstitutionAichi Medical University (2020-2023)
Yokohama City University (2019)

Principal Investigator

Azuma Yoshiteru  愛知医科大学, 医学部, 講師 (60628593)

Project Period (FY) 2019-04-01 – 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 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords次世代シークエンス解析 / てんかん / てんかん症候群
Outline of Research at the Start

小児期発症のてんかんでは年齢依存性に発症する一連のてんかん症候群が知られている。治療抵抗性の発作と精神運動発達遅滞を合併するてんかん性脳症について、遺伝学的な検索が現在も行われているが、既報遺伝子の検索では変異を同定できない症例も多く、未知の遺伝子を病因とする発症メカニズムの存在が推測される。当研究では、次世代シークエンサーなどの先進的な手法で新規てんかん遺伝子を探索することを目的とする。候補遺伝子については分子生物学的手法を用いた実験を行い、病原性の証明および発症メカニズムを明らかにすることで、難治とされるてんかん症候群において、新規の治療法につながる結果を得ることを目指している。

Outline of Final Research Achievements

The objective of this study was to search for novel epilepsy genes using advanced methods such as next-generation sequencers. During the period, I have been charge of 76 cases of epilepsy and other neurological diseases using next-generation sequencing analysis. Of these, mutations were identified in the responsible genes previously reported in 26 cases, and copy number variations that were considered pathogenic were identified in 2 cases. The case with de novo missense mutation in a gene that have not been reported previously were registered in an international database for possible new responsible genes, and are being prepared for reporting together with cases from other institutions.

Academic Significance and Societal Importance of the Research Achievements

次世代シークエンサーを用いた遺伝学的解析を用いて、既報の遺伝子において過去に報告のない変異を含む病原性変異を同定し、さらに過去に病原性の報告のない遺伝子にde novo変異およびbi-allelicのrare variantのデータを蓄積することができた。また、これらの新たな知見の一部を報告し、学術的および社会的な意義をもたらすことができた。

Report

(6 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (8 results)

All 2024 2023 2022 2020 2019

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 1 results) Presentation (4 results) Book (1 results)

  • [Journal Article] A Novel Mutation of VPS13D-related Disorders with Parkinsonism2024

    • Author(s)
      Harada S, Azuma Y, Misumi Y, Hayashi H, Matsubara S, Nakahara K, Miyatake S, Matsumoto N, Ueda M.
    • Journal Title

      Internal Medicine

      Volume: 63 Issue: 18 Pages: 2551-2553

    • DOI

      10.2169/internalmedicine.3101-23

    • ISSN
      0918-2918, 1349-7235
    • Year and Date
      2024-09-15
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Subcortical infarction in a young adult with Hunter syndrome2022

    • Author(s)
      Kimura M, Azuma Y, Taguchi S, Takagi M, Mori H, Shimomura Y, Niwa JI, Doyu M, Okumura A.
    • Journal Title

      Brain Dev

      Volume: 44(5) Issue: 5 Pages: 343-346

    • DOI

      10.1016/j.braindev.2022.01.003

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Hemizygous FLNA variant in West syndrome without periventricular nodular heterotopia2020

    • Author(s)
      Hiromoto Y, Azuma Y, Suzuki Y, Hoshina M, Uchiyama Y, Mitsuhashi S, Miyatake S, Mizuguchi T, Takata A, Miyake N, Kato M, Matsumoto N.
    • Journal Title

      Hum Genome Var

      Volume: 7 Issue: 1 Pages: 43-43

    • DOI

      10.1038/s41439-020-00131-9

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Review of results of SCN1A genetic testing after insurance coverage.2023

    • Author(s)
      東 慶輝, 高木 みずき, 沼本 真吾, 倉橋 宏和, 奥村 彰久
    • Organizer
      第56回 日本てんかん学会学術集会
    • Related Report
      2023 Annual Research Report
  • [Presentation] ケトン食療法が著効したSTXBP1 変異の1例2023

    • Author(s)
      東 慶輝, 高木 みずき, 佐田 淳, 沼本 真吾, 倉橋 宏和, 奥村 彰久
    • Organizer
      第15回 日本てんかん学会東海北陸地方会学術集会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 全エクソーム解析でIRF2BPL遺伝子変異を同定したWest症候群の一例2023

    • Author(s)
      東 慶輝, 吉田 登, 高木 みずき, 沼本 真吾, 倉橋 宏和, 奥村 彰久
    • Organizer
      第65回 日本小児神経学会学術集会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 一卵性双生児の発症者と非発症者ともに病的モザイク変異を認めたSETX-ALS4症例2019

    • Author(s)
      東 慶輝、宮武 聡子、塚本-宮城 愛、瓦井 俊孝、内山 由理、水口 剛、三橋 里美、高田 篤、三宅 紀子、松本 直通
    • Organizer
      日本人類遺伝学会第64回大会
    • Related Report
      2019 Research-status Report
  • [Book] Epilepsy: A Comprehensive Textbook Edition: 3, Chapter 20 How to Interpret and Act on Clinical Exomes in Epilepsy:2023

    • Author(s)
      Yoshiteru Azuma, Naomichi Matsumoto
    • Total Pages
      6
    • Publisher
      LWW
    • ISBN
      9781975105525
    • Related Report
      2023 Annual Research Report

URL: 

Published: 2019-04-18   Modified: 2025-01-30  

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