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The elucidation of complicated genetic backgrounds and pathogenicity in patients with inherited primary arrhythmia syndromes caused by unknown etiology

Research Project

Project/Area Number 21H02888
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 52050:Embryonic medicine and pediatrics-related
Research InstitutionNational Cardiovascular Center Research Institute

Principal Investigator

Ohno Seiko  国立研究開発法人国立循環器病研究センター, オープンイノベーションセンター, 部長 (20610025)

Co-Investigator(Kenkyū-buntansha) ZANKOV DimitarP  国立研究開発法人国立循環器病研究センター, オープンイノベーションセンター, 室長 (20631295)
牧山 武  京都大学, 医学研究科, 講師 (30528302)
相庭 武司  国立研究開発法人国立循環器病研究センター, 病院, 部長 (40574348)
福山 恵  滋賀医科大学, 医学部, 助教 (60625771)
加藤 浩一  滋賀医科大学, 医学部, 助教 (70736983)
園田 桂子  国立研究開発法人国立循環器病研究センター, オープンイノベーションセンター, 上級研究員 (90824417)
高山 幸一郎  国立研究開発法人国立循環器病研究センター, 研究所, リサーチフェロー (20816988)
Wang Qi  国立研究開発法人国立循環器病研究センター, 研究所, リサーチフェロー (70756767)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2024)
Budget Amount *help
¥17,810,000 (Direct Cost: ¥13,700,000、Indirect Cost: ¥4,110,000)
Fiscal Year 2023: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2022: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2021: ¥10,270,000 (Direct Cost: ¥7,900,000、Indirect Cost: ¥2,370,000)
Keywordsゲノム構造多型 / ロングリードシークエンサー / RYR2 / 遺伝性不整脈 / ゲノムDNA構造異常 / long read sequencer / DNA構造異常 / DNA構造多型
Outline of Research at the Start

遺伝性不整脈は若年者突然死の原因となる疾患であり、これまでの研究で疾患の原因となる遺伝子および遺伝子変異が同定されてきた。しかし未だ変異が同定されていない症例がある。その原因として、これまでのシークエンサーでは同定困難な変異、つまりDNA構造多型が考えられている。本研究では、DNA構造多型の検出可能なシークエンサーを用い、遺伝性不整脈患者に対するスクリーニングを実施する。さらにiPS由来心筋細胞を用い、同定された構造多型がどのように疾患発症に関与しているのか、研究を行う。

Outline of Final Research Achievements

In this study, we aim to elucidate the genetic background of hereditary cardiovascular diseases and analyze their functions. First, we extracted patients with suspected structural variants (SV) using a short-read sequencer. We also performed LRS analysis on patients in which the insertion sites were difficult to identify due to duplication. As a result, tandem repeats were identified in two families. Using probe capture methods, we established a targeted sequencing method to capture and analyze the entire RYR2 region by LRS. In addition, we determined the zygosity of variants in ARVC caused by multiple variants of DSG2 by using LRS.

Academic Significance and Societal Importance of the Research Achievements

未だ遺伝的背景が解明されていない遺伝性疾患の原因の1つにゲノム構造異常 (structural variant, SV) が挙げられる。SVの同定にはロングリードシークエンサー (LRS) が有用であり、我々はその活用法につき検討してきた。LRSはSVの同定のみならず、compound heteroにおけるzygosity (どちらのアレルにvariantがあるか) の確定にも有用であった。今後LRSを用いた、さらなる遺伝性疾患の病態解明が進み、有効な治療法の開発に結びつくことが期待される。

Report

(4 results)
  • 2024 Final Research Report ( PDF )
  • 2023 Annual Research Report
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • Research Products

    (43 results)

All 2025 2024 2023 2022 2021 2020 Other

All Int'l Joint Research (3 results) Journal Article (18 results) (of which Int'l Joint Research: 10 results,  Peer Reviewed: 16 results,  Open Access: 12 results) Presentation (22 results) (of which Int'l Joint Research: 13 results,  Invited: 11 results)

  • [Int'l Joint Research] Vanderbilt University/Victor Chang Cardiac Research Institute(米国)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] Amsterdam UMC, University of Amsterdam(オランダ)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] Istituto Auxologico Italiano,(イタリア)

    • Related Report
      2023 Annual Research Report
  • [Journal Article] Clinical Impact of Genetic Testing for Long QT Syndrome ― Evidence From a Nationwide LQTS Registry in Japan ―2025

    • Author(s)
      Aiba Takeshi、Ohno Seiko、Kusano Kengo, et al.
    • Journal Title

      Circulation Journal

      Volume: 89 Issue: 6 Pages: 835-844

    • DOI

      10.1253/circj.CJ-25-0105

    • ISSN
      1346-9843, 1347-4820
    • Year and Date
      2025-05-23
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] TAD boundary deletion causes PITX2-related cardiac electrical and structural defects2024

    • Author(s)
      Baudic M, Murata H, Bosada FM, Ohno S, et al.
    • Journal Title

      Nature Communications

      Volume: 15 Issue: 1 Pages: 3380-3380

    • DOI

      10.1038/s41467-024-47739-x

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Brugada syndrome in Japan and Europe: a genome-wide association study reveals shared genetic architecture and new risk loci2024

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

      European Heart Journal

      Volume: in press Issue: 26 Pages: 2320-2332

    • DOI

      10.1093/eurheartj/ehae251

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] An international multicenter cohort study on implantable cardioverter-defibrillators for the treatment of symptomatic children with catecholaminergic polymorphic ventricular tachycardia2024

    • Author(s)
      Lamba A, Roston TM, Peltenburg PJ, Ohno S, et al.
    • Journal Title

      Heart Rhythm

      Volume: 21 Issue: 10 Pages: 1767-1776

    • DOI

      10.1016/j.hrthm.2024.04.006

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Multiplexed Assays of Variant Effect and Automated Patch Clamping Improve <i>KCNH2</i> -LQTS Variant Classification and Cardiac Event Risk Stratification2024

    • Author(s)
      O'Neill MJ, Ng CA, Aizawa T, Ohno S, et al.
    • Journal Title

      Circulation

      Volume: 150 Issue: 23 Pages: 1869-1881

    • DOI

      10.1161/circulationaha.124.069828

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Clinical Features, Long-Term Prognosis, and Clinical Management of Genotype-Negative Long QT Syndrome Patients2024

    • Author(s)
      Shimamoto Keiko、Dagradi Federica、Ohno Seiko、Spazzolini Carla、Crotti Lia、Giovenzana Fulvio L.F.、Musu Giulia、Pedrazzini Matteo、Kusano Kengo、Takegami Misa、Nishimura Kunihiro、Horie Minoru、Aiba Takeshi、Schwartz Peter J.
    • Journal Title

      JACC: Clinical Electrophysiology

      Volume: 10 Issue: 12 Pages: 2584-2596

    • DOI

      10.1016/j.jacep.2024.07.022

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Novel Compound Heterozygous Variants in Trans-2,3-Enoyl-Coenzyme A Reductase-Like Gene Associated With Catecholaminergic Polymorphic Ventricular Tachycardia2024

    • Author(s)
      Shimamoto Keiko、Sumitomo Naokata、Nabeshima Taisuke、Ohno Seiko、Shimizu Wataru、Kusano Kengo、Aiba Takeshi
    • Journal Title

      JACC: Case Reports

      Volume: 29 Issue: 11 Pages: 102364-102364

    • DOI

      10.1016/j.jaccas.2024.102364

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Non-missense variants of <i>KCNH2</i> show better outcomes in type 2 long QT syndrome2023

    • Author(s)
      Aizawa Takanori、Wada Yuko、Hasegawa Kanae、Huang Hai、Imamura Tomohiko、Gao Jingshan、Kashiwa Asami、Kohjitani Hirohiko、Fukuyama Megumi、Kato Koichi、Kato Eri Toda、Hisamatsu Takashi、Ohno Seiko、Makiyama Takeru、Kimura Takeshi、Horie Minoru
    • Journal Title

      EP Europace

      Volume: 25 Issue: 4 Pages: 1491-1499

    • DOI

      10.1093/europace/euac269

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Continuous Bayesian variant interpretation accounts for incomplete penetrance among Mendelian cardiac channelopathies2023

    • Author(s)
      O’Neill Matthew J.、Sala Luca、Denjoy Isabelle、Wada Yuko、Kozek Krystian、Crotti Lia、Dagradi Federica、Kotta Maria-Christina、Spazzolini Carla、Leenhardt Antoine、Salem Joe-Elie、Kashiwa Asami、Ohno Seiko、Tao Ran、Roden Dan M.、Horie Minoru、Extramiana Fabrice、Schwartz Peter J.、Kroncke Brett M.
    • Journal Title

      Genetics in Medicine

      Volume: 25 Issue: 3 Pages: 100355-100355

    • DOI

      10.1016/j.gim.2022.12.002

    • Related Report
      2022 Annual Research Report
  • [Journal Article] School-based routine screenings of electrocardiograms for the diagnosis of long QT syndrome2022

    • Author(s)
      Fukuyama Megumi、Horie Minoru、Aoki Hisaaki、Ozawa Junichi、Kato Koichi、Sawayama Yuichi、Tanaka-Mizuno Sachiko、Makiyama Takeru、Yoshinaga Masao、Nakagawa Yoshihisa、Ohno Seiko
    • Journal Title

      EP Europace

      Volume: - Issue: 9 Pages: 1496-1503

    • DOI

      10.1093/europace/euab320

    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Increased CaV1.2 late current by a CACNA1C p.R412M variant causes an atypical Timothy syndrome without syndactyly.2022

    • Author(s)
      Ozawa J, Ohno S, Melgari D, Wang Q, Fukuyama M, Toyoda F, Makiyama T, Yoshinaga M, Suzuki H, Saitoh A, Ai T, Horie M.
    • Journal Title

      Sci Rep

      Volume: 12 Issue: 1 Pages: 18984-18984

    • DOI

      10.1038/s41598-022-23512-2

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Association Between Deleterious SCN5A Variants and Ventricular Septal Defect in Young Patients With Brugada Syndrome2022

    • Author(s)
      Suzuki Keisuke、Sonoda Keiko、Aoki Hisaaki、Nakamura Yuko、Watanabe Seiichi、Yoshida Yoko、Hoshino Kenji、Ozawa Junichi、Imamura Tomohiko、Aiba Takeshi、Kato Koichi、Makiyama Takeru、Kusano Kengo、Horie Minoru、Ohno Seiko
    • Journal Title

      JACC: Clinical Electrophysiology

      Volume: 8 Issue: 3 Pages: 297-305

    • DOI

      10.1016/j.jacep.2022.01.007

    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Impact of cascade screening for catecholaminergic polymorphic ventricular tachycardia type 12022

    • Author(s)
      Shimamoto K, Ohno S, Kato K, Takayama K, Sonoda K, Fukuyama M, Makiyama T, Okamura S, Asakura K, Imanishi N, Kato Y, Sakaguchi H, Kamakura T, Wada M, Yamagata K, Ishibashi K, Inoue Y, Miyamoto K, Nagase S, Kusano K, Horie M, Aiba T.
    • Journal Title

      Heart

      Volume: - Issue: 11 Pages: 2021-320220

    • DOI

      10.1136/heartjnl-2021-320220

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] An International Multicenter Cohort Study on β-Blockers for the Treatment of Symptomatic Children With Catecholaminergic Polymorphic Ventricular Tachycardia2022

    • Author(s)
      Peltenburg, P. J. Kallas, D. Bos, J. M. Lieve, K. V. V. Franciosi, S. Roston, T. M. Denjoy, I. Sorensen, K. B. Ohno, S. Shimizu, W. Horie, M. Leenhardt, A. Ackerman, M. J. Sanatani, S. van der Werf, C. Wilde, A. A. M.
    • Journal Title

      Circulation

      Volume: 145 Issue: 5 Pages: 333-344

    • DOI

      10.1161/circulationaha.121.056018

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Loss-of-function mutations in cardiac ryanodine receptor channel cause various types of arrhythmias including long QT syndrome2021

    • Author(s)
      Hirose Sayako、Murayama Takashi、Tetsuo Naoyuki、Hoshiai Minako、Kise Hiroaki、Yoshinaga Masao、Aoki Hisaaki、Fukuyama Megumi、Wuriyanghai Yimin、Wada Yuko、Kato Koichi、Makiyama Takeru、Kimura Takeshi、Sakurai Takashi、Horie Minoru、Kurebayashi Nagomi、Ohno Seiko
    • Journal Title

      EP Europace

      Volume: 24 Issue: 3 Pages: 497-510

    • DOI

      10.1093/europace/euab250

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Long-Read Sequence Confirmed a Large Deletion Including <i>MYH6</i> and <i>MYH7</i> in an Infant of Atrial Septal Defect and Atrial Arrhythmias2021

    • Author(s)
      Sonoda Keiko、Ishihara Haruko、Sakazaki Hisanori、Suzuki Tsugutoshi、Horie Minoru、Ohno Seiko
    • Journal Title

      Circulation: Genomic and Precision Medicine

      Volume: 14 Issue: 4

    • DOI

      10.1161/circgen.120.003223

    • NAID

      120007146546

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Estimating the Posttest Probability of Long QT Syndrome Diagnosis for Rare <i>KCNH2</i> Variants2021

    • Author(s)
      Kozek K, Wada Y, Makita N, Ishikawa T, Crotti L, Kroncke BM, et al.
    • Journal Title

      Circulation: Genomic and Precision Medicine

      Volume: 14 Issue: 4

    • DOI

      10.1161/circgen.120.003289

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Enhancing rare variant interpretation in inherited arrhythmias through quantitative analysis of consortium disease cohorts and population controls2020

    • Author(s)
      2.Walsh R, Lahrouchi N, Tadros R, Kyndt F, Glinge C, Postema PG, et al.
    • Journal Title

      Genetics in Medicine

      Volume: 23 Issue: 1 Pages: 47-58

    • DOI

      10.1038/s41436-020-00946-5

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] A large RYR2 duplication detected in a patient with fetal atrio-ventricular block by various detection methods2024

    • Author(s)
      Keiko Sonoda, Junichi Ozawa, Megumi Fukuyama and Seiko Ohno
    • Organizer
      日本人類遺伝学会第69回大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] The interplay of genetics, environment and lifestyle in contribution to young SCD2024

    • Author(s)
      Seiko Ohno
    • Organizer
      APHRS2024
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] CPVT2024

    • Author(s)
      Seiko Ohno, Takeru Makiyama
    • Organizer
      第70回日本不整脈心電学会学術集会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Amplicon-based long-read sequencing is useful for confi rming zygosityof DSG2 variants associated with Japanese ARVC2024

    • Author(s)
      Keiko Sonoda, Minoru Horie, Seiko Ohno
    • Organizer
      ESC2024
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Calmodulinopathy in Japanese Children - Their Cardiac Phenotypes Are Severe and Show Early Onset in Fetal Life and Infancy2024

    • Author(s)
      Seiko Ohno, Megumi Fukuyama, Minoru Horie
    • Organizer
      JCK Asian Pacific Heart Forum 2024
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Global Expert Consensus Statement on State of Genetic Testing for Inherited Cardiac Diseases2022

    • Author(s)
      Seiko Ohno
    • Organizer
      HeartRhythm2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] ARVC2022

    • Author(s)
      Seiko Ohno
    • Organizer
      KHRS2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Different prognosis of ARVC patients between DSG2 and PKP2 variant carriers2022

    • Author(s)
      Sonoda K, Nagase S, Aiba T, Kato K, Shiga T, Kusano K, Horie M, Ohno S.
    • Organizer
      ESC Congress 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Desmoglein 2 mutant mice reproduce arrhythmogenic right ventricular2022

    • Author(s)
      Zankov D, Ohno S.
    • Organizer
      ESC Congress 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Calmodulinopathy is a common cause of critical cardiac phenotypes in2022

    • Author(s)
      Fukuyama M, Horie M, Kato K, Ozawa T, Fujii Y, Okuyama Y, Makiyama T, Ohno S, Nakagawa Y.
    • Organizer
      ESC Congress 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Genomic autopsy to determine the preventable cause of sudden cardiac arrest and save relatives2022

    • Author(s)
      Ohno S
    • Organizer
      ReSS2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] How to stratify the risk of ventricular arrhythmia and heart failure in arrhythmogenic right ventricular2022

    • Author(s)
      Ohno S
    • Organizer
      第68回日本不整脈心電学会学術大会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] デスモゾーム関連遺伝子変異キャリアの小児期の特徴2022

    • Author(s)
      大野 聖子, 園田 桂子, 加藤 浩一, 堀江 稔
    • Organizer
      第58回日本小児循環器学会総会・学術集会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 先天性QT延長症候群が疑われた症例に同定されたTBX5_TBX3 欠損2022

    • Author(s)
      Seiko Ohno, Masao Yoshinaga
    • Organizer
      日本人類遺伝学会第67回大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Arrhythmogenic Right Ventricular Cardiomyopathy2021

    • Author(s)
      Ohno S
    • Organizer
      European Heart Rhythm Association Meeting 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] An Update on the Diagnosis and Management of Catecholaminergic Polymorphic Ventricular Tachycardia2021

    • Author(s)
      Ohno S
    • Organizer
      Korean Heart Rhythm Society Meeting 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Human-specific desmoglein 2 mutations in mice models of arrythmogenic right ventricular cardiomyopathy reproduce patients' phenotype2021

    • Author(s)
      Zankov DP, Ohno S
    • Organizer
      European Heart Rhythm Association Meeting 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Early onset of heart failure in Japanese ARVC patients with pathogenic desmosomal gene variants2021

    • Author(s)
      Sonoda K, Nagase S, Aiba T, Fukuyama M, Kato K, Kusano K, Horie M, Ohno S
    • Organizer
      European Society of Cardiology
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] How to Utilize the Genetic Information in Arrhythmogenic Right Ventricular Cardiomyopathy2021

    • Author(s)
      Ohno S
    • Organizer
      第85回日本循環器学会学術集会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 特発性心筋症の遺伝学的検査に基づいた治療戦略2021

    • Author(s)
      大野聖子
    • Organizer
      第25回日本心不全学会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 日本人カテコラミン誘発多形性心室頻拍患者における遺伝子変異頻度とその特徴2021

    • Author(s)
      大野 聖子、園田 桂子、福山 恵、加藤 浩一、堀江 稔.
    • Organizer
      日本人類遺伝学会第66回大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 小児不整脈原性右室心筋症患者をいかに早期に診断するか2021

    • Author(s)
      大野聖子、園田桂子
    • Organizer
      第25回小児心電学会
    • Related Report
      2021 Annual Research Report

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Published: 2021-04-28   Modified: 2026-01-16  

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