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Leveraging Polygenic Risk Score for Elucidating Novel Disease Mechanisms in Hypertrophic Cardiomyopathy

Research Project

Project/Area Number 20K17110
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 53020:Cardiology-related
Research InstitutionKanazawa University

Principal Investigator

Akihiro Nomura  金沢大学, 融合科学系, 准教授 (30707542)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2021: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2020: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Keywords肥大型心筋症 / 多遺伝子リスクスコア / バイオインフォマティクス / 次世代シークエンサー / 心エコー検査 / 心室中隔壁厚
Outline of Research at the Start

本研究は、従来からの単一遺伝子変異の検索では原因が同定されなかった肥大型心筋症(HCM)患者に対して、多数の遺伝子変異が組み合わさることで発症する”多因子遺伝形式タイプ(Polygenic HCM)”の探索と解明を目的とする。また、Polygenic HCMの疾患頻度、ならびに単一遺伝子変異を原因とする単一遺伝形式タイプ(Monogenic HCM)と比較して、どのような臨床的特徴を有するかを明らかにすることである。

Outline of Final Research Achievements

In this study, we conducted a research for hypertrophic cardiomyopathy (HCM) that could occur through the combination of multiple genetic variants using a polygenic risk score (PRS) for inter-ventricular septal thickness (PRS-IVS), especially targeting HCM patients in whom the cause could not be identified by conventional genetic screening for monogenic causal variants. Firstly, we established the method for calculating PRS-IVS. Secondly, we showed that both the HCM causal variant carrier group and the HCM causal variant non-carrier group had significantly higher PRS-IVS values compared to the control group. On the other hand, no significant difference in PRS-IVS was observed between causal variant carriers and non-carriers among patients with HCM. Furthermore, no correlation was found between PRS-IVS and the actual IVS values of each group.

Academic Significance and Societal Importance of the Research Achievements

今回の研究では、肥大型心筋症(HCM)の臨床的診断基準に用いられている心室中隔壁厚(IVS)に対する多遺伝子リスクスコア(PRS-IVS)を、日本人の公開ゲノム解析データ(BioBank Japan)を用いて計算する方法を確立した。また、非HCM患者(対照群)に対して、HCM群は原因遺伝子変異の有無に関わらずPRS-IVSが有意に高値であることを初めて明らかにした。今後も、多数の遺伝子が関与してHCMの形態学的特徴を呈しうる患者の同定、ならびにその疾患機序の解明に向け、さらなる研究が必要である。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (5 results)

All 2023 2022

All Journal Article (5 results) (of which Peer Reviewed: 5 results,  Open Access: 1 results)

  • [Journal Article] The utility of zebrafish cardiac arrhythmia model to predict the pathogenicity of KCNQ1 variants2023

    • Author(s)
      Cui Shihe、Hayashi Kenshi、Nomura Akihiro、et al.
    • Journal Title

      Journal of Molecular and Cellular Cardiology

      Volume: 177 Pages: 50-61

    • DOI

      10.1016/j.yjmcc.2023.03.001

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Whole Exome Sequencing Insufficient for a Definitive Diagnosis of a Patient with Compound Heterozygous Familial Hypercholesterolemia2022

    • Author(s)
      Okada Hirofumi、Tada Hayato、Nomura Akihiro、Nohara Atsushi、Okeie Kazuyasu、Nozue Tsuyoshi、Michishita Ichiro、Takamura Masayuki、Takemura Hirofumi、Kawashiri Masa-aki
    • Journal Title

      Internal Medicine

      Volume: 61 Issue: 19 Pages: 2883-2889

    • DOI

      10.2169/internalmedicine.8989-21

    • ISSN
      0918-2918, 1349-7235
    • Year and Date
      2022-10-01
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Clinical Characteristics, Outcomes, and Risk Factors for Adverse Events in Elderly and Non-Elderly Japanese Patients With Non-Valvular Atrial Fibrillation ― Competing Risk Analysis From the Hokuriku-Plus AF Registry ―2022

    • Author(s)
      Tsuda Toyonobu、Hayashi Kenshi、Kato Takeshi、Usuda Keisuke、Kusayama Takashi、Nomura Akihiro、Tada Hayato、Usui Soichiro、Sakata Kenji、Kawashiri Masa-aki、Fujino Noboru、Yamagishi Masakazu、Takamura Masayuki、for the Hokuriku-Plus AF Registry Investigators
    • Journal Title

      Circulation Reports

      Volume: 4 Issue: 7 Pages: 298-307

    • DOI

      10.1253/circrep.CR-22-0012

    • ISSN
      2434-0790
    • Year and Date
      2022-07-08
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effects of Different Types of Pathogenic Variants on Phenotypes of Familial Hypercholesterolemia2022

    • Author(s)
      Tada Hayato、Kojima Nobuko、Yamagami Kan、Nomura Akihiro、Nohara Atsushi、Usui Soichiro、Sakata Kenji、Fujino Noboru、Takamura Masayuki、Kawashiri Masa-Aki
    • Journal Title

      Frontiers in Genetics

      Volume: 13 Pages: 872056-872056

    • DOI

      10.3389/fgene.2022.872056

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Impact of variants of uncertain significance of LDL receptor on phenotypes of familial hypercholesterolemia2022

    • Author(s)
      Tada Hayato、Kojima Nobuko、Yamagami Kan、Nomura Akihiro、Nohara Atsushi、Usui Soichiro、Sakata Kenji、Hayashi Kenshi、Fujino Noboru、Takamura Masayuki、Kawashiri Masa-aki
    • Journal Title

      Journal of Clinical Lipidology

      Volume: 16 Issue: 6 Pages: 863-869

    • DOI

      10.1016/j.jacl.2022.09.007

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed

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Published: 2020-04-28   Modified: 2024-01-30  

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