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2019 Fiscal Year Annual Research Report

Novel molecular basis underlying lethal arrhythmic syndrome due to mutations in cardiac Na/Ca exchanger gene

Research Project

Project/Area Number 18H02808
Research InstitutionNational Cardiovascular Center Research Institute

Principal Investigator

蒔田 直昌  国立研究開発法人国立循環器病研究センター, 研究所, 副所長 (00312356)

Co-Investigator(Kenkyū-buntansha) 牧山 武  京都大学, 医学研究科, 特定講師 (30528302)
Project Period (FY) 2018-04-01 – 2021-03-31
Keywords致死性不整脈 / Na-Ca交換体 / 早期再分極症候群 / QT短縮症候群 / ゲノム編集 / ノックインマウス / パッチクランプ / コンピュータシミュレーション
Outline of Annual Research Achievements

本研究は、心筋イオン輸送体に焦点を当てて致死性不整脈の新たな病因を探求することである。致死性不整脈の原因究明はQT延長症候群以外では十分に進んでおらず、イオンチャネルを候補遺伝子とする従来の手法で新たな病因を見出すのは困難である。申請者は最近、心電図QT時間の短縮と早期再分極(J波)を特徴とする致死性不整脈の蘇生症例において網羅的遺伝子解析を行い、心筋Na-Ca交換体(NCX)遺伝子の変異を同定した。フランスとの共同研究で、同様の臨床像を有し同一遺伝子上の変異を有する家系をさらに4家系同定した。最大の家系において全ゲノムシークエンスを行い、他の疾患遺伝子の関与が除外された。in vitro機能解析手法でNCXの機能低下を認め、活動電位のコンピュータシミュレーションではQT短縮が再現された。さらに、in vivoで機能異常を解明するために、ゲノム編集で変異導入マウスモデルを作成し、胚を前任地の長崎から国立循環器病研究センター(国循)に移転した。しかし国循の全施設移転に伴い、動物実験は7か月間研究が中断され、R2年2月から個体復元を再開した。これまで得られた研究成果をもとに、NCX変異による細胞内Ca制御異常という新たな疾患概念を確立し、心臓突然死の予知予防に応用する。

Current Status of Research Progress
Current Status of Research Progress

3: Progress in research has been slightly delayed.

Reason

国循の全館移転に伴う7カ月の動物実験中断によって、動物実験が予定よりも遅れている。その他のin vitor実験や遺伝学的研究は順調である。

Strategy for Future Research Activity

ノックインマウスの繁殖がR2年2月から可能となったので、頭数を増やしてin vivoの電気生理学的解析や心筋細胞の活動電位測定などの解析を集中的に進める。

  • Research Products

    (37 results)

All 2020 2019 Other

All Journal Article (15 results) (of which Int'l Joint Research: 6 results,  Peer Reviewed: 12 results,  Open Access: 6 results) Presentation (20 results) (of which Int'l Joint Research: 10 results,  Invited: 3 results) Book (1 results) Remarks (1 results)

  • [Journal Article] Enhancing rare variant interpretation in inherited arrhythmias through quantitative analysis of consortium disease cohorts and population controls2020

    • Author(s)
      Walsh R, Lahrouchi N, Ishikawa T, Makita N, Bezzina C. R et al.
    • Journal Title

      Genetics in Medicine

      Volume: 23 Pages: 47~58

    • DOI

      10.1038/s41436-020-00946-5

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] SCN5A Mutation Type and a Genetic Risk Score Associate Variably With Brugada Syndrome Phenotype in SCN5A Families2020

    • Author(s)
      Wijeyeratne Y. D, Ishikawa T, Makita, N, Aiba, T, Behr ER et al.
    • Journal Title

      Circulation: Genomic and Precision Medicine

      Volume: 13 Pages: e002911

    • DOI

      10.1161/CIRCGEN.120.002911

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Cardiac Emerinopathy: A Nonsyndromic Nuclear Envelopathy With Increased Risk of Thromboembolic Stroke Due to Progressive Atrial Standstill and Left Ventricular Noncompaction2020

    • Author(s)
      Ishikawa T, Mishima H, Barc J, Yoshiura KI, Schott JJ, Makita N et al.
    • Journal Title

      Circulation: Arrhythmia and Electrophysiology

      Volume: 13 Pages: e008712

    • DOI

      10.1161/CIRCEP.120.008712

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Transethnic Genome-Wide Association Study Provides Insights in the Genetic Architecture and Heritability of Long QT Syndrome2020

    • Author(s)
      Lahrouchi, N, Ishikawa T, Makita N, Bezzina CR et al.
    • Journal Title

      Circulation

      Volume: 142 Pages: 324~338

    • DOI

      10.1161/CIRCULATIONAHA.120.045956

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] TBX5 R264K acts as a modifier to develop dilated cardiomyopathy in mice independently of T-box pathway2020

    • Author(s)
      Miyao N, Hata Y, Izumi H, Nagaoka R, Oku Y, Takasaki I, Ishikawa T, Takarada S, Okabe M, Nakaoka H, Ibuki K, Ozawa S, Yoshida T, Hasegawa H, Makita N, Nishida N, Mori H, Ichida F, Hirono K.
    • Journal Title

      PLOS ONE

      Volume: 15 Pages: 0227393~0227393

    • DOI

      10.1371/journal.pone.0227393

    • Peer Reviewed / Open Access
  • [Journal Article] Desmin‐related myopathy characterized by non‐compaction cardiomyopathy, cardiac conduction defect, and coronary artery dissection2020

    • Author(s)
      Tamiya R, Saito Y, Fukamachi D, Nagashima K, Aizawa Y, Ohkubo K, Hatta T, Sezai A, Tanaka M, Ishikawa T, Makita N, Sumitomo N, Okumura Y.
    • Journal Title

      ESC Heart Failure

      Volume: 7 Pages: 1338~1343

    • DOI

      10.1002/ehf2.12667

    • Peer Reviewed / Open Access
  • [Journal Article] Identification of transmembrane protein 168 mutation in familial Brugada syndrome2020

    • Author(s)
      Shimizu A, Zankov DP, Sato A, Komeno M, Toyoda F, Yamazaki S, Makita T, Noda T, Ikawa M, Asano Y, Miyashita Y, Takashima S, Morita H, Ishikawa T, Makita N, Hitosugi M, Matsuura H, Ohno S, Horie M, Ogita H.
    • Journal Title

      The FASEB Journal

      Volume: 34 Pages: 6399~6417

    • DOI

      10.1096/fj.201902991R

    • Peer Reviewed
  • [Journal Article] 遺伝性不整脈のPrecision medicine2020

    • Author(s)
      石川泰輔, 蒔田直昌
    • Journal Title

      週間 医学のあゆみ

      Volume: - Pages: 1279~1283

  • [Journal Article] Brugada症候群の遺伝的背景2020

    • Author(s)
      石川泰輔, 蒔田直昌
    • Journal Title

      別冊・医学のあゆみ 遺伝性心血管疾患のすべて

      Volume: - Pages: 87~90

  • [Journal Article] Calmodulin mutations and life-threatening cardiac arrhythmias: insights from the International Calmodulinopathy Registry2019

    • Author(s)
      Crotti L, Spazzolini C, Makita N, Schwartz PJ et al.
    • Journal Title

      European Heart Journal

      Volume: 40 Pages: 2964~2975

    • DOI

      10.1093/eurheartj/ehz311

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] 遺伝性不整脈の遺伝子診断:有効性と限界2019

    • Author(s)
      石川泰輔, 蒔田直昌
    • Journal Title

      循環器病研究の進歩 Recent Advances in Cadiovascular Disease

      Volume: 40 Pages: 58~66

  • [Journal Article] Optical Recording of Action Potentials in Human Induced Pluripotent Stem Cell-Derived Cardiac Single Cells and Monolayers Generated from Long QT Syndrome Type 1 Patients2019

    • Author(s)
      Takaki T, Inagaki A, Chonabayashi K, Inoue K, Miki K, Ohno S, Makiyama T, Horie M, Yoshida Y.
    • Journal Title

      Stem Cells International

      Volume: 2019 Pages: 1~12

    • DOI

      10.1155/2019/7532657

    • Peer Reviewed
  • [Journal Article] Mutant KCNJ3 and KCNJ5 Potassium Channels as Novel Molecular Targets in Bradyarrhythmias and Atrial Fibrillation2019

    • Author(s)
      Yamada N, Asano Y, Fujita M,Yamazaki S, Inanobe A, Matsuura N, Kobayashi H, Makiyama T, Takashima S et al.
    • Journal Title

      Circulation

      Volume: 139 Pages: 2157~2169

    • DOI

      10.1161/CIRCULATIONAHA.118.036761

    • Peer Reviewed
  • [Journal Article] Phenotype-Based High-Throughput Classification of Long QT Syndrome Subtypes Using Human Induced Pluripotent Stem Cells2019

    • Author(s)
      Yoshinaga D, Baba S, Makiyama T, Shibata H, Hirata T, Akagi K, Matsuda K, Kohjitani H, Wuriyanghai Y, Umeda K, Yamamoto Y, Conklin BR, Horie M, Takita J, Heike T.
    • Journal Title

      Stem Cell Reports

      Volume: 13 Pages: 394~404

    • DOI

      10.1016/j.stemcr.2019.06.007

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A de novo gain-of-function KCND3 mutation in early repolarization syndrome2019

    • Author(s)
      Takayama K, Ohno S, Ding W-G, Ashihara T, Fukumoto D, Wada Y, Makiyama T, Kise H, Hoshiai M, Matsuura H, Horie M.
    • Journal Title

      Heart Rhythm

      Volume: 16 Pages: 1698~1706

    • DOI

      10.1016/j.hrthm.2019.05.033

    • Peer Reviewed
  • [Presentation] Genetic Risks of Sudden Death in Brugada Syndrome2020

    • Author(s)
      Makita N.
    • Organizer
      第84回日本循環器学会学術集会
    • Int'l Joint Research / Invited
  • [Presentation] Cardiac Emerinopathy, Novel Non-syndromic X-linked Left Ventricular Noncompaction Associated with Progressive Atrial Conduction Disturbance2020

    • Author(s)
      Ishikawa T, Aiba T, Ohno S, Yoshiura K, Makita N et al.
    • Organizer
      第84回日本循環器学会学術集会
    • Int'l Joint Research
  • [Presentation] 患者由来iPS 細胞モデルを用いたCav 1.2イオン選択性を障害するCACNA1C-E1115K変異がQT 延長症候群、Brugada 症候群を発症するメカニズムの解析2020

    • Author(s)
      柏麻美, 牧山武, 糀谷泰, マウリッセン トーマス, ウリヤンハイ イミン, 山本雄大, ガオ ジンシャン, ファン ハイ, 今村知彦, 相澤卓範, 石川泰輔, 大野聖子, 豊田太, 佐藤誠一, 高橋一浩, ウォルツェン クヌート, 堀江稔, 蒔田直昌, 木村剛
    • Organizer
      第97回日本生理学会大会
  • [Presentation] 進行性心臓伝導障害患者の網羅的遺伝子解析とin vitro 機能解析系を用いて明らかになった心臓コネキシン病の分子病態2020

    • Author(s)
      石川泰輔, 関明子, 蒔田直昌
    • Organizer
      第97回日本生理学会大会
  • [Presentation] Single Cell Electrophysiological Analysis of iPS Cell-Derived Cardiomyocytes Generated from Long-QT Syndrome Patients Carrying a CALM2 Mutation Using a Membrane Potential Imaging System2019

    • Author(s)
      Yamamoto Y, Makiyama T, Wuriyanghai Y, Kohjitani H, Hirose S, Gao J, Kashiwa A, Huang H, Ishikawa T, Ohno S, Chonabayashi K, Suda K, Yoshida Y, Horie M, Makita N, Kimura T.
    • Organizer
      第66回日本不整脈心電学会
  • [Presentation] Genetic of cardiac conduction disturbance2019

    • Author(s)
      Makita N.
    • Organizer
      12th Asia Pacific heart Rhythm Society Scientific Session
    • Int'l Joint Research / Invited
  • [Presentation] A case report of juvenile onset familial atrial fibrillation due to genetic defect2019

    • Author(s)
      Kumanomidou J, Makita N.
    • Organizer
      12th Asia Pacific Heart Rhythm Society Scientific Session
    • Int'l Joint Research
  • [Presentation] Modeling Overlap Syndrome of Long QT and Brugada Syndrome Associated with Induced Pluripotent Stem Cells2019

    • Author(s)
      Kashiwa A, Makiyama T, Kohjitani H, Wuriyanghai Y, Yamamoto Y, Jungshan G, Huang H, Ishikawa T, Ohno S, Toyoda F, Sato S, Horie M, Makita N, Kimura T.
    • Organizer
      The 40th Heart Rhythm Society Scientific Sessions
    • Int'l Joint Research
  • [Presentation] Novel common genetic predispositions to sudden death in Brugada syndrome distinct from those to diagnostic Brugada-ECG pattern2019

    • Author(s)
      Ishikawa T.
    • Organizer
      第3回日本循環器病学会基礎研究フォーラム
    • Invited
  • [Presentation] Modeling Overlapping Phenotypes of Long-QT and Brugada Syndrome with CACNA1C-E1115K that Alters Ion Selectivity of the Cardiac L-Type Calcium Channel Using Induced Pluripotent Stem Cells2019

    • Author(s)
      Kashiwa A, Makiyama T, Kohjitani H, Hirose S, Gao J, Kashiwa A, Huang H, Ishikawa T, Ohno S, Chonabayashi K, Suda K, Yoshida Y, Horie M, Makita N, Kimura T.
    • Organizer
      第66回日本不整脈心電学会
  • [Presentation] Automatic Computational Action Potential Analyzing System Enables Accurate Drug Response Interpretation and Prediction in Human Induced Pluripotent Stem Cell-derived Cardiomyocytes2019

    • Author(s)
      Ishikawa T, Makita N.
    • Organizer
      第66回日本不整脈心電学会
  • [Presentation] 40th Heart Rhythm Scientific Sessions2019

    • Author(s)
      Kohitani H, Kouda S, Himeno Y, Makiyama T, Kashiwa A, Wuriyanghai Y, Ymamaoto Y, Hiroe M, Kimura T, Noma A, Amano A.
    • Organizer
      40th Heart Rhythm Scientific Sessions
    • Int'l Joint Research
  • [Presentation] Cardiac Emerinopathy, Novel Nonsyndromic Xlinked Left Ventricular Noncompaction Associated With Progressive Atrial Conduction Disturbance2019

    • Author(s)
      Ishikawa T, Barc J, Mishima H, Hirono K, Terada S, Kowase S, Sato T, Mukai Y, Yui Y, Ohkubo K, Kimoto H, Hata Y, Aiba T, Ohno S, Chishaki A, Shimizu W, Horie M, Ichida F, Nogami A, Yoshiura K, Schott JJ, Makita N.
    • Organizer
      The 40th Heart Rhythm Society Scientific Sessions
    • Int'l Joint Research
  • [Presentation] Brugada症候群の予後予測に対する分子生理学的アプローチ2019

    • Author(s)
      石川泰輔, 蒔田直昌
    • Organizer
      第67回日本心臓病学会学術集会
  • [Presentation] 発症前診断を行ったQT延長症候群の姉妹2019

    • Author(s)
      松下悠紀, 永田弾尺, 小川昌宣, 鹿田佐和子, 石川泰輔, 蒔田直昌
    • Organizer
      日本人類遺伝学会第64回大会
  • [Presentation] 次世代シーケンス解析による特発性心室細動の遺伝背景の解明2019

    • Author(s)
      謝颯琴, 高橋篤, 大野聖子, 鎌倉令, 石川泰輔, 植田初江, 斯波真理子, 南野直人, 林研至, 八木原伸江, 中野由紀子, 伊藤英樹, 宮本恵宏, 田中敏博, 蒔田直昌, 堀江稔, 清水渉, 草野研吾, 安田聡, 相庭武司
    • Organizer
      日本人類遺伝学会第64回大会
  • [Presentation] 若年発症の家族性心房細動症例で遺伝子異常を認めた1例2019

    • Author(s)
      岩橋英明, 熊埜御堂淳, 高橋淳彌, 大渕綾, 本多亮博, 平方佐季, 大塚昌紀, 大江征嗣, 蒔田直昌, 福本義弘
    • Organizer
      日本内科学会 第326回九州地方会
  • [Presentation] Structural Insights into Catecholaminergic Polymorphic Ventricular Tachycardia-associated RyR2 Mutant Channels using a Three-dimensional In Silico Model2019

    • Author(s)
      Gao J, Makiyama T, Ohno S, Yamamoto Y, Wuriyanghai Y, Kohjitani H, Kashiwa A, Huang H, Katou K, Horie M, Kimura T.
    • Organizer
      European Society of Cardiology Congress 2019
    • Int'l Joint Research
  • [Presentation] KCNQ1 Channel Dysfunction in human induced pluripotent stem cell-derived cardiomyocytes carrying a CALM2-N98S mutation associated with long QT syndrome2019

    • Author(s)
      Yamamoto Y, Makiyama T, Ishiakawa T, Makita N, Kimura T et al.
    • Organizer
      American Heart Association Scientific Sessions 2019
    • Int'l Joint Research
  • [Presentation] Morphological and electrophysiological characterization of homozygous lamin A/C knockout human induced-pluripotent stem cell-derived cardiomyocytes. American Heart Association Scientific Sessions 20192019

    • Author(s)
      Wuriyanghai Y, Makiyama T, Yamamoto Y, Horie M, Kimura T.
    • Organizer
      American Heart Association Scientific Sessions 2019
    • Int'l Joint Research
  • [Book] ゼロから学ぶ Burugada症候群2020

    • Author(s)
      石川泰輔, 蒔田直昌
    • Total Pages
      133(86-107)
    • Publisher
      大道学館出版部
  • [Remarks] 国立循環器病研究センター 創薬オミックス解析センター 研究プロジェクト

    • URL

      http://www.ncvc.go.jp/omics/research/project03.html

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Published: 2021-12-27  

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