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Elucidation of pathology of inherited cardiac disease caused by mutations in ryanodine receptor gene

Research Project

Project/Area Number 19K08555
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 53020:Cardiology-related
Research InstitutionShiga University of Medical Science

Principal Investigator

Fukuyama Megumi  滋賀医科大学, 医学部, 助教 (60625771)

Co-Investigator(Kenkyū-buntansha) 大野 聖子  国立研究開発法人国立循環器病研究センター, 研究所, 部長 (20610025)
堀江 稔  滋賀医科大学, 医学部, 非常勤講師 (90183938)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywordsリアノジン受容体遺伝子異常 / QT延長症候群 / カテコラミン誘発多型性心室頻拍 / リアノジン受容体遺伝子 / カテコラミン誘発性多型性心室頻拍 / リアノジン受容体 / 遺伝性心疾患
Outline of Research at the Start

遺伝性心臓疾患は、遺伝性不整脈症候群(IPAS)と心筋症とに大きく二分され、若年期から重篤な臨床像を呈する疾患である。我々のグループは2000年代よりカテコラミン誘発性多型性心室頻拍(CPVT)に対するリアノジン受容体遺伝子(RYR2)変異の検索をおこなってきたが、近年次世代シーケンサーを用いた解析を開始して以来、その他のIPASや心筋症においてもRYR2遺伝子変異が多数同定されるようになった。我々は本研究を通し、RYR2遺伝子変異と遺伝性心臓疾患の関連を明らかにし、心筋症と不整脈両方の治療に貢献することを目的とする。

Outline of Final Research Achievements

In a cohort of about 6,000 of inherited cardiac disease patients which we collected, we extracted 680 patients who were identified no mutation genes while exhibiting phenotypes of inherited cardiac disease, and screened for RYR2 gene variants. As the result, RYR2 variants were identified in 138 probands. As a result of analyzing the clinical and electrocardiographic characteristics in these RYR2 variant carriers, they were classified into 3 groups; 86 CPVT, 27 LQTS, and 8 IVF. 86% of them were symptomatic, overall, 52% of them experienced lethal arrhythmic events. These differences of phenotypes depend on protein function: gain-of-function in CPVT and loss-of-function in LQTS, and they seems to be related the position of variants in ryanodine receptor protein.

Academic Significance and Societal Importance of the Research Achievements

リアノジン受容体は巨大蛋白であるため、心臓機能において重要な役割を果たすにもかかわらず遺伝子解析が煩雑なものであった。本研究ではRYR2遺伝子の大規模な解析により、本遺伝子異常がもたらす臨床像は致死的不整脈を含む重篤なものが多く、早期診断と初期からの治療介入の重要性を示すものであった。また、バリアントの部位や蛋白機能変化により臨床像が異なることを明らかにしたことで、バリアントから患者の表現型や不整脈リスクを予測することができ、治療や安全管理の上で非常に役立つと考えられる。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (19 results)

All 2022 2021 2020 2019

All Journal Article (7 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 7 results,  Open Access: 6 results) Presentation (12 results) (of which Int'l Joint Research: 3 results)

  • [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
      2021 Annual Research Report
    • Peer Reviewed
  • [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] 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] Comparison Between Clopidogrel and Prasugrel Associated With <i>CYP2C19</i> Genotypes in Patients Receiving Percutaneous Coronary Intervention in a Japanese Population2020

    • Author(s)
      Yuichi Sawayama, Takashi Yamamoto, Yukinori Tomita, Kohei Asada, Noriaki Yagi, Megumi Fukuyama, Akashi Miyamoto, Hiroshi Sakai, Tomoya Ozawa, Tetsuichiro Isono, Daiki Hira, Tomohiro Terada, Minoru Horie, Yoshihisa Nakagawa
    • Journal Title

      Circulation Journal

      Volume: 84 Issue: 9 Pages: 1575-1581

    • DOI

      10.1253/circj.CJ-20-0254

    • NAID

      130007890783

    • ISSN
      1346-9843, 1347-4820
    • Year and Date
      2020-08-25
    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] High Prevalence of Late-Appearing T-Wave in Patients With Long QT Syndrome Type 82020

    • Author(s)
      Fukuyama M, Ohno S,Ozawa J, Kato K, Makiyama T, Nakagawa Y, Horie M.
    • Journal Title

      Circulation Journal

      Volume: 84 Issue: 4 Pages: 559-568

    • DOI

      10.1253/circj.CJ-19-1101

    • NAID

      130007815680

    • ISSN
      1346-9843, 1347-4820
    • Year and Date
      2020-03-25
    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] An NGS-based genotyping in LQTS; minor genes are no longer minor2020

    • Author(s)
      Ohno Seiko、Ozawa Junichi、Fukuyama Megumi、Makiyama Takeru、Horie Minoru
    • Journal Title

      Journal of Human Genetics

      Volume: 65 Issue: 12 Pages: 1083-1091

    • DOI

      10.1038/s10038-020-0805-z

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] LMNA Missense Mutation Causes Nonsense-Mediated mRNA Decay and Severe Dilated Cardiomyopathy2020

    • Author(s)
      Kato Koichi、Ohno Seiko、Sonoda Keiko、Fukuyama Megumi、Makiyama Takeru、Ozawa Tomoya、Horie Minoru
    • Journal Title

      Circulation: Genomic and Precision Medicine

      Volume: 13 Issue: 5 Pages: 435-443

    • DOI

      10.1161/circgen.119.002853

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Calmodulinopathy is a Common Cause of Critical Cardiac Phenotypes in Fetus and Infancy2022

    • Author(s)
      Megumi Fukuyama, Minoru Horie, Koichi Kato1, Takeru Makiyama, Seiko Ohno, Yoshihisa Nakagawa
    • Organizer
      第85回日本循環器学会学術集会.
    • Related Report
      2021 Annual Research Report
  • [Presentation] Contribution of Genetic Screening for Arrhythmogenic Cardiomyopathy2021

    • Author(s)
      Fukuyama M, Ohno S, Kato K, Ozawa T, Makiyama T, Nakagawa Y, Horie M.
    • Organizer
      第67回日本不整脈心電学会学術集会.
    • Related Report
      2021 Annual Research Report
  • [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
      ESC Congress 2021
    • Related Report
      2021 Annual Research Report
  • [Presentation] Contribution of Genetic Screening for Arrhythmogenic Cardiomyopathy2021

    • Author(s)
      Megumi Fukuyama, Seiko Ohno, Koichi Kato, Tomoya Ozawa, Yuichi Sawayama, Yosuke Higo, Yusuke Okuyama, Kohei Asada, Yusuke Fujii, Noriaki Yagi, Akashi Miyamoto, Hiroshi Sakai, Takashi Yamamoto, Takeru Makiyama, Minoru Horie, Yoshihisa Nakagawa
    • Organizer
      第85回日本循環器学会学術集会総会 with WCC2021
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] A Synonymous SCN5A Variant p.E446E Causing Brugada Syndrome via Cryptic Donor Site Splicing2021

    • Author(s)
      Yuichi Sawayama, Koichi Kato, Masahiko Ajiro, Ryo Kurosawa, Megumi Fukuyama, Seiko Ohno, Yoshihisa Nakagawa, Minoru Horie
    • Organizer
      第85回日本循環器学会学術集会総会 with WCC2021
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Association between CYP2C19 Polymorphism and High Bleeding Risk in Patients Received Percutaneous Coronary Intervention2021

    • Author(s)
      Yuichi Sawayama, Takashi Yamamoto, Yousuke Higo, Kohei Asada, Noriaki Yagi, Megumi Fukuyama, Akashi Miyamoto, Yoshihisa Nakagawa
    • Organizer
      第85回日本循環器学会学術集会総会 with WCC2021
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] High Prevalence of Late Appearance T Wave in Patients with Long QT Syndrome Type 82019

    • Author(s)
      Fukuyama M, Ohno S,Ozawa J,Kato K, Takayama K, Makiyama T, Horie M
    • Organizer
      第 66 回日本不整脈 心電学会学術集会
    • Related Report
      2019 Research-status Report
  • [Presentation] Calmodulin Mutations in Japanese Children with Long QT Syndrome2019

    • Author(s)
      Fukuyama M, Ohno S,Ozawa J, Horie M
    • Organizer
      第 66 回日本不整脈心電学会学術集会
    • Related Report
      2019 Research-status Report
  • [Presentation] A severely calcified coronary lesion that a burr cannot penetrate2019

    • Author(s)
      Asada K, Sawayama Y, Yagi N, Fukuyama M, Sakai H, Yamamoto T, Nakagawa Y.
    • Organizer
      CCT2019
    • Related Report
      2019 Research-status Report
  • [Presentation] A case of successful recanalization of thrombotic occlusion of the external iliac artery2019

    • Author(s)
      澤山裕一 浅田紘平, 八木典章, 福山 恵, 宮本 証, 酒井 宏, 山本 孝, 中川義久
    • Organizer
      CCT2019
    • Related Report
      2019 Research-status Report
  • [Presentation] DCB versus DES in STEMI.2019

    • Author(s)
      浅田紘平, 澤山裕一, 八木典章, 福山 恵, 宮本 証, 酒井 宏, 山本 孝, 中川義久
    • Organizer
      PAC19
    • Related Report
      2019 Research-status Report
  • [Presentation] 常染色体優性多発性嚢胞腎に合併した重 症心不全の 1 例2019

    • Author(s)
      植村裕樹, 福山 恵, 酒井 宏, 山本 孝, 中川義久
    • Organizer
      日本内科学会第 226 回近畿地方会
    • Related Report
      2019 Research-status Report

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Published: 2019-04-18   Modified: 2023-01-30  

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