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Determination of the molecular mechanisms underlying heart development based on genome-wide analysis for congenital heart disease

Research Project

Project/Area Number 16K10059
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Pediatrics
Research InstitutionThe University of Tokyo

Principal Investigator

Inuzuka Ryo  東京大学, 医学部附属病院, 講師 (00597560)

Co-Investigator(Kenkyū-buntansha) 平田 陽一郎  東京大学, 医学部附属病院, 講師 (40447397)
Research Collaborator Nakagama Yu  
Nakanishi Toshio  
Takeuchi Jun  
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2018: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords先天性心疾患 / RAS/MAPK症候群関連心臓病 / 心臓発生 / ゼブラフィッシュ / マウス / 遺伝子改変疾患動物モデリング / RAS/MAP症候群関連心臓病 / 網羅的遺伝子解析 / 発生 / 心筋症 / 内臓錯位 / 線毛機能 / 内臓錯位症候群 / 左右軸 / 心房心室不一致 / 遺伝子改変ノックアウト変異体 / ゲノム編集 / 機能解析
Outline of Final Research Achievements

Based on genome-wide analysis and bioinformatic analysis, LZTR1 was selected as a candidate gene for a pedigree with conotruncal anomaly and hypertrophic cardiomyopathy. We performed in-vivo functional analysis for LZTR1 based on zebra fish model using the CRISPR-Cas9 system. A chimeric F0 mutant harboring a 7bp deletion germline allele was identified and backcrossed to wild-type fish to obtain F1 heterozygotes (lztr1del/+). F1 heterozygotes were crossed to generate F2 homozygous mutants (lztr1del/del), which recapitulated hypertrophic cardiomyopathy. Further, immunohistochemical analysis using anti-phospho-ERK antibody indicated active RAS/MAPK signaling, the deleterious signature of NS-associated hypertrophic cardiomyopathy.

Academic Significance and Societal Importance of the Research Achievements

本研究では、RAS/MAPK症候群関連心臓病におけるLZTR1の重要性が明らかになった。本研究で作出された、疾患モデルゼブラフィッシュは今後RAS/MAPK症候群関連心臓病の病態生理の解明に役立つことが期待される。特に、ゼブラフィッシュから得られる単離心筋細胞は、哺乳動物のそれと異なり、中長期培養、薬剤刺激、RNA阻害実験に適しており、RAS/MAPK症候群関連心臓病の細胞レベルの病態生理を解析する上で、最適なプラットフォームを提供してくれると考えられる。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (17 results)

All 2018 2017

All Journal Article (5 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 5 results,  Open Access: 1 results) Presentation (12 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] Early-onset Marfan Syndrome Caused by a Splicing Mutation of <i>FBN1</i> Exon 29: A Case Report2018

    • Author(s)
      Ogawa Yosuke、Nakano Katsutoshi、Shindo Takahiro、Hirata Yoichiro、Inuzuka Ryo、Fujita Daishi、Takeda Norifumi、Taniguchi Yuki、Oka Akira
    • Journal Title

      Pediatric Cardiology and Cardiac Surgery

      Volume: 34 Issue: 2 Pages: 77-83

    • DOI

      10.9794/jspccs.34.77

    • NAID

      130007384661

    • ISSN
      0911-1794, 2187-2988
    • Year and Date
      2018-03-01
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Accelerated Cardiomyocyte Proliferation in the Heart of a Neonate With LEOPARD Syndrome-Associated Fatal Cardiomyopathy.2018

    • Author(s)
      Nakagama Y, Inuzuka R, Ichimura K, Hinata M, Takehara H, Takeda N, Kakiuchi S, Shiraga K, Asakai H, Shindo T, Hirata Y, Saitoh M, Oka A.
    • Journal Title

      Circulation: Heart Failure

      Volume: 11(4) Issue: 4

    • DOI

      10.1161/circheartfailure.117.004660

    • Related Report
      2018 Annual Research Report 2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Identification of a Novel Titin Variant Underlying Myocardial Involvement in Neurofibromatosis Type 12018

    • Author(s)
      Kizawa Mami、Nakagama Yu、Shindo Takahiro、Ogawa Seishi、Inuzuka Ryo
    • Journal Title

      Canadian Journal of Cardiology

      Volume: 34 Issue: 10 Pages: 1369.e5-1369.e7

    • DOI

      10.1016/j.cjca.2018.07.473

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Impact of Pathogenic FBN1 Variant Types on the Progression of Aortic Disease in Patients With Marfan Syndrome2018

    • Author(s)
      Takeda N, Inuzuka R, Maemura S, Morita H, Nawata K, Fujita D, Taniguchi Y, Yamauchi H, Yagi H, Kato M, Nishimura H, Hirata Y, Ikeda Y, Kumagai H, Amiya E, Hara H, Fujiwara T, Akazawa H, Suzuki JI, Imai Y, Nagai R, Takamoto S, Hirata Y, Ono M, Komuro I.
    • Journal Title

      Circulation: Genomic and Precision Medicine

      Volume: 11 Issue: 6

    • DOI

      10.1161/circgen.117.002058

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Distinct variants affecting differential splicing of TGFBR1 exon 5 cause either Loeys?Dietz syndrome or multiple self-healing squamous epithelioma2018

    • Author(s)
      Fujiwara Takayuki、Takeda Norifumi、Hara Hironori、Morita Hiroyuki、Kishihara Jun、Inuzuka Ryo、Yagi Hiroki、Maemura Sonoko、Toko Haruhiro、Harada Mutsuo、Ikeda Yuichi、Kumagai Hidetoshi、Nomura Seitaro、Takimoto Eiki、Akazawa Hiroshi、Ako Junya、Komuro Issei
    • Journal Title

      European Journal of Human Genetics

      Volume: 26 Issue: 8 Pages: 1151-1158

    • DOI

      10.1038/s41431-018-0127-1

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] 乳児期発症ミオパチーに合併した心筋緻密化異常の病像2018

    • Author(s)
      物井 綾香、中釜 悠、浦田 晋、中野 克俊、中川 良、朝海 廣子、平田 陽一郎、犬塚 亮、岡 明
    • Organizer
      第40回心筋生検研究会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Whole-exome sequencing identifies novel MYL2 mutations in a rare autosomal recessive myosinopathy2018

    • Author(s)
      Ogawa Y, Shindo T, Nakagama Y, Shimoda K, Shiraga K, Asakai H, Hirata Y, Ogawa S, Inuzuka R, Oka A
    • Organizer
      Weinstein 2018 Cardiovascular Development and Regeneration Conference
    • Related Report
      2018 Annual Research Report
  • [Presentation] The role of a TTN mutation in the pathogenesis of restrictive cardiomyopathy in a patient with Neurofibromatosis-12018

    • Author(s)
      Kizawa M, Nakagama Y, Shindo T, Asakai H, Hirata Y, Ogawa S, Inuzuka R
    • Organizer
      Weinstein 2018 Cardiovascular Development and Regeneration Conference
    • Related Report
      2018 Annual Research Report
  • [Presentation] Cardiomyopathy of dysregulated cardiomyocyte proliferation2018

    • Author(s)
      Nakagama Y, Takehara H, Shiraga K, Kakiuchi S, Asakai H, Shindo T, Hirata Y, Inuzuka R
    • Organizer
      Weinstein 2018 Cardiovascular Development and Regeneration Conference
    • Related Report
      2018 Annual Research Report
  • [Presentation] BMPR2遺伝子に新生突然変異を有した肺動脈性肺高血圧症の孤発例2018

    • Author(s)
      巻和佳奈, 白神一博, 中釜悠, 浦田晋, 朝海廣子, 進藤考洋, 平田陽一郎, 犬塚亮, 岡明
    • Organizer
      第54回日本小児循環器学会総会・学術集会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Impact of FBN1 gene mutation types on the progression of aortic disease in patients with Marfan syndrome2018

    • Author(s)
      犬塚 亮, 武田 憲文, 前村 園子, 森田 啓行, 縄田 寛, 藤田 大司, 谷口 優樹, 山内 治雄, 八木 宏樹, 平田 陽一郎
    • Organizer
      第54回日本小児循環器学会総会・学術集会
    • Related Report
      2018 Annual Research Report
  • [Presentation] AV-discordance (ccTGA)の原因としてDNAH5遺伝子変異を同定した一例2017

    • Author(s)
      中釜 悠, 犬塚 亮, 田中 優, 白神 一博, 朝海 廣子, 進藤 考洋, 平田 陽一郎, 滝田 順子, 岡 明
    • Organizer
      日本小児科学会
    • Place of Presentation
      東京
    • Year and Date
      2017-04-14
    • Related Report
      2016 Research-status Report
  • [Presentation] AV discordance(ccTGA)の原因として,DNAH5遺伝子変異を同定した一例2017

    • Author(s)
      中釜 悠, 犬塚 亮, 田中 優, 白神 一博, 朝海 廣子, 進藤 考洋, 平田 陽一郎, 滝田 順子, 岡 明
    • Organizer
      第120回日本小児科学会学術集会
    • Related Report
      2017 Research-status Report
  • [Presentation] V-, VA-discordanceを合併した原発性線毛機能不全症の2例が示唆する、heterotaxyスペクトラムとしての大血管転位症の発症機序.2017

    • Author(s)
      中釜 悠, 犬塚 亮, 田中 優, 白神 一博, 朝海 廣子, 進藤 考洋, 平田 陽一郎, 滝田 順子, 岡 明
    • Organizer
      第53回日本小児循環器学会総会・学術集会
    • Related Report
      2017 Research-status Report
  • [Presentation] 新規ELN遺伝子変異が同定されたエラスチン動脈症の一例.2017

    • Author(s)
      大森 紹玄, 中釜 悠, 田中 優, 白神 一博, 朝海 廣子, 進藤 考洋, 平田 陽一郎, 犬塚 亮, 岡 明
    • Organizer
      第53回日本小児循環器学会総会・学術集会
    • Related Report
      2017 Research-status Report
  • [Presentation] 二つのサルコメア遺伝子に変異を認め、孤立性右室流出路狭窄を呈した肥大型心筋症の一例.2017

    • Author(s)
      小川 陽介, 中釜 悠, 朝海 廣子, 進藤 考洋, 平田 陽一郎, 犬塚 亮, 岡 明
    • Organizer
      第53回日本小児循環器学会総会・学術集会
    • Related Report
      2017 Research-status Report
  • [Presentation] The role of next-generation sequencing in elucidating the pathogenesis of congenital heart disease.2017

    • Author(s)
      Yu Nakagama, Ryo Inuzuka
    • Organizer
      The 8th TAKAO International Symposium on Molecular Mechanism of Cardiopulmonary Disease
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research

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Published: 2016-04-21   Modified: 2020-03-30  

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