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Research on neurodegenerative disorders

Research Project

Project/Area Number 23K27514
Project/Area Number (Other) 23H02823 (2023)
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeMulti-year Fund (2024)
Single-year Grants (2023)
Section一般
Review Section Basic Section 52020:Neurology-related
Research InstitutionOkayama University

Principal Investigator

石浦 浩之  岡山大学, 医歯薬学域, 教授 (40632849)

Co-Investigator(Kenkyū-buntansha) 角元 利行  東京大学, 医学部附属病院, 助教 (90876814)
Project Period (FY) 2023-04-01 – 2027-03-31
Project Status Granted (Fiscal Year 2024)
Budget Amount *help
¥18,460,000 (Direct Cost: ¥14,200,000、Indirect Cost: ¥4,260,000)
Fiscal Year 2026: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2025: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2024: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2023: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Keywordsリピート伸長病 / リピート伸長変異 / 良性成人型家族性ミオクローヌスてんかん / 神経核内封入体病 / 全ゲノム配列解析 / 細胞モデル
Outline of Research at the Start

申請者はこれまで、6疾患において新規のリピート伸長変異を同定し、同じリピートモチーフの伸長により同様の疾患がもたらされるというリピートモチーフ・表現型関連の概念を提唱した。この現象は、リピート伸長変異そのものの病態への関与を示唆するものであり、今後、リピート伸長変異を直接標的とする治療法が望まれる。本研究では、リピート伸長病のモデル細胞、モデルマウス作成による病態解明、治療法開発を目的とする。また、疾患遺伝子未同定症例のゲノム解析を行い、リピート伸長変異も含めて検討を行うことにより、新規遺伝子同定を目指す。

Outline of Annual Research Achievements

中四国で遺伝子解析研究を行うための研究体制を現所属先で構築し、共同研究施設よりDNAやリンパ芽球様細胞を収集できる体制を構築し、実際に検体の収集を開始した。神経核内封入体病、眼咽頭遠位型ミオパチー、CANVAS (cerebellar ataxia, neuropathy, and vestibular areflexia syndrome)などリピート伸長疾患の診断を行う系を再構築した。神経核内封入体病の患者由来線維芽細胞を樹立した。エクソーム解析、全ゲノム配列解析を行う体制も構築し、ExpansionHunterDeNovoを用いてリピート伸長変異を検出することも可能となった。また、家系解析を進める上でのツールとして、エクソーム解析、全ゲノム配列解析データを用いて連鎖解析を行う系と、トリオ検体を用いて新生突然変異を検出するパイプラインも構築した。この系を用いて、CANVASの1家系を用いてLOD score=3.0となる領域を原因遺伝子RFC1を含む領域に同定できることを確認した。また、既知の新生突然変異を有する家系を用いて新生突然変異の検出が可能であることを確認した。最後に、神経核内封入体病に類似した白質脳症を呈した家系のトリオ解析を行った。本家系では既知の遺伝子の病原性バリアントは検出されず、新規のCGGリピート伸長変異や病原性と思われる新生突然変異についても検出することができず、引き続き構造変異やミトコンドリア遺伝子なども含めて検討が必要であることが判明した。

Current Status of Research Progress
Current Status of Research Progress

2: Research has progressed on the whole more than it was originally planned.

Reason

遺伝子解析研究体制を順調に構築している。

Strategy for Future Research Activity

本年は良性成人型家族性ミオクローヌスてんかんの診断を行う系を再構築するとともに、髄液バイオマーカー用の検体を採取していく。リピート病の細胞モデル構築に向け、さらに検討を行う。

Report

(1 results)
  • 2023 Annual Research Report
  • Research Products

    (32 results)

All 2024 2023 2022 Other

All Journal Article (25 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 17 results,  Open Access: 7 results) Presentation (6 results) (of which Int'l Joint Research: 2 results,  Invited: 4 results) Remarks (1 results)

  • [Journal Article] Intraventricular Cerliponase Alfa Treatment in a Patient with Advanced Neuronal Ceroid Lipofuscinosis Type 22024

    • Author(s)
      Nakashima Saki、Hamada Masashi、Kimura Tomohiko、Tanifuji Shuichi、Takahashi Akiko、Yashita Daiki、Kakimoto Yu、Matsukawa Takashi、Ishiura Hiroyuki、Toda Tatsushi
    • Journal Title

      Internal Medicine

      Volume: 63 Issue: 12 Pages: 1807-1812

    • DOI

      10.2169/internalmedicine.2563-23

    • ISSN
      0918-2918, 1349-7235
    • Year and Date
      2024-06-15
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Adrenomyeloneuropathy with Later Development of Cerebral Form Caused by a Hemizygous Splice-site Variant in <i>ABCD1</i>2024

    • Author(s)
      Takegami N, Matsukawa T, Hamada M, Tanifuji S, Tamura T, Yamaguchi-Takegami N, Ishiura H, Mitsui J, Sakuishi K, Tsuji S, Toda T.
    • Journal Title

      Internal Medicine

      Volume: 63 Issue: 7 Pages: 999-1004

    • DOI

      10.2169/internalmedicine.2240-23

    • ISSN
      0918-2918, 1349-7235
    • URL

      https://pure.teikyo.jp/en/publications/d1d3cb0d-0a30-47f6-b6e9-dbf058732058

    • Year and Date
      2024-04-01
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Late-onset Myoclonic Seizure in a 78-year-old Woman with Gaucher Disease2024

    • Author(s)
      Yamaguchi-Takegami Nanaka、Takahashi Akiko、Mitsui Jun、Sugiyama Yusuke、Chikada Ayaka、Porto Kristine Joyce L、Takegami Naoki、Sakuishi Kaori、Ishiura Hiroyuki、Yamada Kaoru、Shimizu Jun、Tsuji Shoji、Toda Tatsushi
    • Journal Title

      Internal Medicine

      Volume: 63 Issue: 6 Pages: 861-865

    • DOI

      10.2169/internalmedicine.1699-23

    • ISSN
      0918-2918, 1349-7235
    • Year and Date
      2024-03-15
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Recovery after Prolonged Disturbance of Consciousness and Repeated Cerebral Perfusion Changes in Neuronal Intranuclear Inclusion Disease2024

    • Author(s)
      Uchigami H, Hamada M, Maekawa H, Ishiura H, Kodama S, Shirota Y, Takahashi M, Momose T, Toda T.
    • Journal Title

      Internal Medicine

      Volume: 63 Issue: 2 Pages: 333-336

    • DOI

      10.2169/internalmedicine.1015-22

    • ISSN
      0918-2918, 1349-7235
    • Year and Date
      2024-01-15
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] RFC1-related disorder presenting recurrent syncope2024

    • Author(s)
      Tsuboyama Yoko、Takahashi Akiko、Furukawa Sawako、Almansour Asem、Hamada Masashi、Kubota Akatsuki、Shimizu Jun、Kinoshita Makoto、Fujimoto Chisato、Mitsui Jun、Matsukawa Takashi、Naruse Hiroya、Ishiura Hiroyuki、Tsuji Shoji、Toda Tatsushi
    • Journal Title

      Journal of Neurology

      Volume: - Issue: 7 Pages: 4635-4638

    • DOI

      10.1007/s00415-024-12231-5

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Proximal sensory neuropathy and cerebellar ataxia as presenting symptoms of NOTCH2NLC-related neuronal intranuclear inclusion disease2024

    • Author(s)
      Funakawa Kai、Kurihara Masanori、Takahashi Kensuke、Higashihara Mana、Hara Manato、Mitsutake Akihiko、Ishiura Hiroyuki、Tokumaru Aya Midori、Sonoo Masahiro、Murayama Shigeo、Saito Yuko、Iwata Atsushi
    • Journal Title

      Journal of the Neurological Sciences

      Volume: 458 Pages: 122915-122915

    • DOI

      10.1016/j.jns.2024.122915

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] <scp><i>SPTLC2</i></scp> variants are associated with early‐onset <scp>ALS</scp> and <scp>FTD</scp> due to aberrant sphingolipid synthesis2024

    • Author(s)
      Naruse H、Ishiura H、Takiyama Y、Morishita S、Tsuji S、Toda T, et al.
    • Journal Title

      Annals of Clinical and Translational Neurology

      Volume: - Issue: 4 Pages: 946-957

    • DOI

      10.1002/acn3.52013

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] CGG repeat expansion in LOC642361/NUTM2B-AS1 typically presents as oculopharyngodistal myopathy2024

    • Author(s)
      Shi Yan、Cao Chunyan、Zeng Yiheng、Ding Yuanliang、Chen Long、Zheng Fuze、Chen Xuejiao、Zhou Fanggui、Yang Xiefeng、Li Jinjing、Xu Liuqing、Xu Guorong、Lin Minting、Ishiura Hiroyuki、Tsuji Shoji、Wang Ning、Wang Zhiqiang、Chen Wan-Jin、Yang Kang
    • Journal Title

      Journal of Genetics and Genomics

      Volume: 51 Issue: 2 Pages: 184-196

    • DOI

      10.1016/j.jgg.2023.12.009

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] The Myocardial Accumulation of Aggregated Desmin Protein in a Case of Desminopathy with a <i>de novo DES</i> p.R406W Mutation2023

    • Author(s)
      Takegami N, Mitsutake A, Mano T, Shintani-Domoto Y, Unuma A, Yamaguchi-Takegami N, Ishiura H, Sakuishi K, Ando M, Yamauchi H, Ono M, Morishita S, Mitsui J, Shimizu J, Tsuji S, Toda T.
    • Journal Title

      Internal Medicine

      Volume: 62 Issue: 19 Pages: 2883-2887

    • DOI

      10.2169/internalmedicine.0992-22

    • ISSN
      0918-2918, 1349-7235
    • URL

      https://pure.teikyo.jp/en/publications/67aa222b-f930-4057-b8c8-adbc4034cad0

    • Year and Date
      2023-10-01
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A Japanese family with idiopathic basal ganglia calcification carrying a novel XPR1 variant2023

    • Author(s)
      Orimo Kenta、Kakumoto Toshiyuki、Hara Ryo、Goto Ryoji、Ishiura Hiroyuki、Mitsui Jun、Yoshida Chiharu、Uesaka Yoshikazu、Suzuki Yuta、Morishita Shinichi、Satake Wataru、Tsuji Shoji、Toda Tatsushi
    • Journal Title

      Journal of the Neurological Sciences

      Volume: 451 Pages: 120732-120732

    • DOI

      10.1016/j.jns.2023.120732

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Nine Hereditary Movement Disorders First Described in Asia: Their History and Evolution2023

    • Author(s)
      Jagota P, Ugawa Y, Aldaajani Z, Ibrahim NM, Ishiura H, Nomura Y, Tsuji S, Diesta C, Hattori N, Onodera O, S, Bohlega, AlDin ASN, LIM S-Y, Lee J-Y, Jeon B, Pal PK, Shang H, Fujioka S, Kukkle PL, Phokaewvarangkul O, Lin C-H,
    • Journal Title

      Journal of Movement Disorders

      Volume: 16 Issue: 3 Pages: 231-247

    • DOI

      10.14802/jmd.23065

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Clinical features of a family with late‐onset distal hereditary motor neuropathy harboring p.Pro39Leu variant of HSPB12023

    • Author(s)
      Naruse Hiroya、Okubo So、Sudo Atsushi、Mitsui Jun、Mikata Takashi、Ishiura Hiroyuki、Morishita Shinichi、Tsuji Shoji、Toda Tatsushi
    • Journal Title

      Journal of the Peripheral Nervous System

      Volume: 28 Issue: 3 Pages: 518-521

    • DOI

      10.1111/jns.12567

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Noncanonical splice‐site variant in peripheral myelin protein 22 gene (PMP22) in a patient with hereditary neuropathy with liability to pressure palsies2023

    • Author(s)
      Kawamoto Norifumi、Hamada Yuichi、Kobayashi Shunsuke、Naruse Hiroya、Ishiura Hiroyuki、Matsukawa Takashi、Mitsui Jun、Tsuji Shoji、Sonoo Masahiro、Toda Tatsushi
    • Journal Title

      Journal of the Peripheral Nervous System

      Volume: 28 Issue: 3 Pages: 513-517

    • DOI

      10.1111/jns.12558

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Favorable outcome of hematopoietic stem cell transplantation in late-onset Krabbe disease2023

    • Author(s)
      Mitsutake Akihiko、Matsukawa Takashi、Iwata Atsushi、Ishiura Hiroyuki、Mitsui Jun、Mori Harushi、Toya Takashi、Honda Akira、Kurokawa Mineo、Sakai Norio、Tsuji Shoji、Toda Tatsushi
    • Journal Title

      Brain and Development

      Volume: 45 Issue: 7 Pages: 408-412

    • DOI

      10.1016/j.braindev.2023.04.001

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Recent advances in CGG repeat diseases and a proposal of fragile X-associated tremor/ataxia syndrome, neuronal intranuclear inclusion disease, and oculophryngodistal myopathy (FNOP) spectrum disorder.2023

    • Author(s)
      Ishiura H, Tsuji S, Toda T.
    • Journal Title

      J Hum Genet

      Volume: 68 Issue: 3 Pages: 169-174

    • DOI

      10.1038/s10038-022-01116-y

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Insights into familial adult myoclonus epilepsy pathogenesis: How the same repeat expansion in six unrelated genes may lead to cortical excitability2023

    • Author(s)
      Depienne Christel、van den Maagdenberg Arn M. J. M.、K?hnel Theresa、Ishiura Hiroyuki、Corbett Mark A.、Tsuji Shoji
    • Journal Title

      Epilepsia

      Volume: - Issue: S1

    • DOI

      10.1111/epi.17504

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] 神経筋疾患の遺伝子診断・遺伝子治療2023

    • Author(s)
      石浦浩之、戸田達史
    • Journal Title

      最新ガイドラインに基づく神経疾患 治療指針 2023-’24

      Volume: - Pages: 563-567

    • Related Report
      2023 Annual Research Report
  • [Journal Article] リピート病の新展開2023

    • Author(s)
      石浦浩之
    • Journal Title

      脳神経疾患最新の治療 2024-2026

      Volume: - Pages: 27-30

    • Related Report
      2023 Annual Research Report
  • [Journal Article] 新しいリピート伸長病とロングリードシーケンシング2023

    • Author(s)
      石浦浩之
    • Journal Title

      Dementia Japan

      Volume: 37 Pages: 82-86

    • Related Report
      2023 Annual Research Report
  • [Journal Article] リピート病とプロテイノパチー2023

    • Author(s)
      石浦浩之
    • Journal Title

      BIO Clinica

      Volume: 38 Pages: 219-223

    • Related Report
      2023 Annual Research Report
  • [Journal Article] BAFME―原因究明の歴史2023

    • Author(s)
      石浦浩之
    • Journal Title

      Clinical Neuroscience

      Volume: 41 Pages: 65-67

    • Related Report
      2023 Annual Research Report
  • [Journal Article] OPDM―原因究明の歴史2023

    • Author(s)
      石浦浩之
    • Journal Title

      Clinical Neuroscience

      Volume: 41 Pages: 101-102

    • Related Report
      2023 Annual Research Report
  • [Journal Article] ノンコーディングリピート伸長病の発見とリピートモチーフ・表現型関連2023

    • Author(s)
      石浦浩之
    • Journal Title

      岡山医学会雑誌

      Volume: 135 Pages: 72-77

    • Related Report
      2023 Annual Research Report
  • [Journal Article] 神経難病の全ゲノム解析2023

    • Author(s)
      辻省次、三井純、石浦浩之.
    • Journal Title

      医学のあゆみ

      Volume: 285 Pages: 47-50

    • Related Report
      2023 Annual Research Report
  • [Journal Article] Recent advances in benign adult familial myoclonus epilepsy2022

    • Author(s)
      Matsukawa Miho Kawabe、Ishiura Hiroyuki、Tsuji Shoji、Toda Tatsushi
    • Journal Title

      Neurology and Clinical Neuroscience

      Volume: 00 Issue: 1 Pages: 1-8

    • DOI

      10.1111/ncn3.12685

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Recent advances in repeat expansion disorders.2023

    • Author(s)
      Ishiura H.
    • Organizer
      The 15th Biennial Convention of the ASEAN Neurological Association 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Recent advances in repeat expansion diseases and the future potential of gene therapy.2023

    • Author(s)
      Ishiura H.
    • Organizer
      日本人類遺伝学会第68回大会・Human Genetics Asia.
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 遺伝性神経筋疾患の最近の進歩2023

    • Author(s)
      石浦浩之
    • Organizer
      第65回日本小児神経学会学術集会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 遺伝性神経筋疾患の診療の仕方と病態機序2023

    • Author(s)
      石浦浩之
    • Organizer
      日本神経学会中四国地方会第31回生涯教育講演会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Variants in SPTAN1 in patients with hereditary spastic paraplegia2023

    • Author(s)
      Ishiura H, Mano T, Sudo A, Koh K, Takiyama Y, JASPAC, Matsukawa T, Mitsui J, Nakayama T, Tsuji S, Toda T
    • Organizer
      第64回日本神経学会学術大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] FLVCR1遺伝子の新規複合ヘテロ接合性変異によるposterior column ataxia with retinitis pigmentosaの一例2023

    • Author(s)
      中野由美子、出口健太郎、福井裕介、松岡千加、河野智仁、平佑貴、 小坂田陽介、佐々木諒、野村恵美、柚木太淳、武本麻美、森原隆太、山下徹、石浦浩之
    • Organizer
      第114回日本神経学会中国四国地方会
    • Related Report
      2023 Annual Research Report
  • [Remarks] 岡山大学 脳神経内科学講座

    • URL

      https://www.okayama-u.ac.jp/user/shinnai/

    • Related Report
      2023 Annual Research Report

URL: 

Published: 2023-04-18   Modified: 2024-12-25  

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