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Role of BMPR2 mutation in Pulmonary Hypertension in Rats

Research Project

Project/Area Number 17K10140
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Pediatrics
Research InstitutionMie University

Principal Investigator

Sawada Hirofumi  三重大学, 医学系研究科, 講師 (30362354)

Co-Investigator(Kenkyū-buntansha) 丸山 一男  三重大学, 医学系研究科, 教授 (20181828)
三谷 義英  三重大学, 医学部附属病院, 准教授 (60273380)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2017: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords肺高血圧 / 動物モデル / 遺伝子変異 / 肺動脈性肺高血圧 / ゲノム編集 / ラット / ラットモデル / 遺伝子改変動物
Outline of Final Research Achievements

Mutations in bone morphogenetic protein receptor type-2(BMPR2) are the main genetic risk factor for developing pulmonary arterial hypertension (PAH). Recent studies have shown that PAH patients with BMPR2 mutation present earlier with severe hemodynamic compromise and worse transplant-free survival than those without mutations. The mechanisms underlying the difference in clinical phenotype in BMPR2 mutation carriers remain unclear. We tested the hypothesis that rats with a CRISPR/Cas9-mediated monoallelic BMPR2 mutation develop more severe pulmonary hypertension (PH) leading to poor survival than those without the mutation. For the first time using CRISPR/Cas9, this study demonstrates that rats with BMPR2 mutation develop MCT-PH similarly to wildtype until day21 but had poor survival thereafter and warrants further studies into underlying mechanism directing towards precision medicine in PAH targeted therapy for patients with BMPR2 mutations.

Academic Significance and Societal Importance of the Research Achievements

肺動脈性高血圧は予後不良疾患であり、小児においても主な死亡の原因である。原因としてBMPR2遺伝子の変異があげられ、同遺伝子変異保有患者は、重症となるとされる。しかし、肺動脈性高血圧における、BMPR2の意義は完全には理解されておらず、BMPR2変異保有患者が、より重症のPAHに進展する機序は不明である。BMPR2変異マウスを用いた研究では、ヒトと同様の病変や進行性の病態を評価することは困難であったが、最近、ゲノム編集技術の開発により、BMPR2変異ラットを用いた研究が可能となり、本研究では、最新のゲノム編集技術であるCRISPR/Cas9による変異導入ラットを用いた世界初の知見を得た。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (16 results)

All 2019 2018

All Journal Article (8 results) (of which Peer Reviewed: 8 results,  Open Access: 2 results) Presentation (8 results) (of which Int'l Joint Research: 5 results,  Invited: 3 results)

  • [Journal Article] Detection of Pediatric Pulmonary Arterial Hypertension by School Electrocardiography Mass Screening2019

    • Author(s)
      Sawada H, Mitani Y, Nakayama T, Fukushima H, Kogaki S, Igarashi T, Ichida F, Ono Y, Nakanishi T, Doi S, Ishikawa S, Matsushima M, Yamada O, Saji T
    • Journal Title

      Am J Respir Crit Care Med

      Volume: 199 Pages: 1397-1406

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Emergence and Characterization of Acute Coronary Syndrome in Adults After Confirmed or Missed History of Kawasaki Disease in Japan: A Japanese Nationwide Survey.2019

    • Author(s)
      Mitani Y, Tsuda E, Kato H, Higaki T, Fujiwara M, Ogawa S, Satoh F, Nakamura Y, Takahashi K, Ayusawa M,Kobayashi T, Ichida F, Matsushima M, Kamada M, Suda K,Ohashi H, Sawada H, Komatsu T, Waki K, Shinoda M, Tsunoda R, Yokoi H, Hamaoka K.
    • Journal Title

      Front Pediatr.

      Volume: 7 Pages: 275-275

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The ALK-1/SMAD/ATOH8 axis protects against hypoxia and development of pulmonary arterial hypertension2019

    • Author(s)
      Morikawa M, Mitani Y, Holmborn K, Kato T, Koinuma D, Maruyama J, Vasilaki E, Sawada H, Kobayashi M, Ozawa T, Morishita T, Bessho Y, Maeda S, Ledin J, Aburatani H, Kageyama R, Maruyama K, Heldin C-H, and Miyazono K.
    • Journal Title

      Science Signaling

      Volume: 12

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 総説 肺高血圧の基礎研究:小児肺高血圧に関連の深い実験モデル: -肺動脈性肺高血圧・気管支肺異形成・先天性横隔膜ヘルニア2019

    • Author(s)
      澤田博文
    • Journal Title

      小児循環器学会雑誌

      Volume: 35 Pages: 99-111

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Endogenous and Inhaled Nitric Oxide for the Treatment of Pulmonary Hypertension2019

    • Author(s)
      Maruyama Kazuo、Maruyama Junko、Sawada Hirofumi
    • Journal Title

      IntechOpen

      Volume: 1 Pages: 89381-89381

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 肺高血圧の基礎研究:小児肺高血圧に関連の深い実験モデル: -肺動脈性肺高血圧・気管支肺異形成・先天性横隔膜ヘルニア -2019

    • Author(s)
      澤田 博文
    • Journal Title

      日本小児循環器学会雑誌

      Volume: 印刷中

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Guidelines for Heart Disease Screening in Schools (JCS 2016/JSPCCS 2016) ― Digest Version ―2018

    • Author(s)
      umitomo N, Baba R, Doi S, Higaki T, Horie M, Nagashima M, Niwa K, Ogawa S, Okumura K, Tsutsui H (et al. )
    • Journal Title

      Circulation Journal

      Volume: 82 Issue: 9 Pages: 2385-2444

    • DOI

      10.1253/circj.CJ-66-0153

    • NAID

      130007438850

    • ISSN
      1346-9843, 1347-4820
    • Year and Date
      2018-08-24
    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Detection of Pediatric Pulmonary Arterial Hypertension by School Electrocardiography Mass Screening2018

    • Author(s)
      Sawada Hirofumi、Mitani Yoshihide、Nakayama Tomotaka、Fukushima Hiroyuki、Kogaki Shigetoyo、Igarashi Takehiro、Ichida Fukiko、Ono Yasuo、Nakanishi Toshio、Doi Shozaburo、Ishikawa Shiro、Matsushima Masaki、Yamada Osamu、Saji Tsutomu
    • Journal Title

      American Journal of Respiratory and Critical Care Medicine

      Volume: 印刷中 Issue: 11 Pages: 1397-1406

    • DOI

      10.1164/rccm.201802-0375oc

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Inhaled Iloprost Added-On to Nitric Oxide Rescues a Neonate with Severe Congenital Diaphragmatic Hernia without Using Extracorporeal Membrane Oxygenation2019

    • Author(s)
      Kitamura S, Sawada H, Mitani Y, Ohashi H, Yodoya N, Ooya K, Matsushita K, Koike Y, Otake K, Inoue M, Uchida K, Maruyama K and Hirayama M
    • Organizer
      American Thoracic Society International Conference
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Role of BMPR2 Mutation in Monocrotaline-induced Pulmonary Hypertension: Analysis Using Rats with a Crispr/Cas9-induced Truncating BMPR2 mutation.2019

    • Author(s)
      Kabwe JC, Sawada H, Mitani Y, Oshita H, Zhang E, Maruyama J, Hirayama M, Maruyama K
    • Organizer
      Japanese Circulation Society
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] erinatal Hypoxia Aggravates Occlusive Pulmonary Vasculopathy in the Adolescent Rats: Establishment of a Fatal Sugen/hypoxia Model and Its Molecular Basis2019

    • Author(s)
      Hironori Oshita,Hirofumi Sawada,Yoshihide Mitani,Jane Kabwe,Noriko Yodoya,Naoki Tsuboya,Kazunobu Ohya,Hiroyuki Ohashi,Kazuo Maruyama,Masahiro Hirayama.
    • Organizer
      American Heart Association
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Quantitative Analysis of Chest X-Ray Using Deep Learning to Predict Pulmonary to Systemic Flow Ratio in Patients With Congenital Heart Disease2019

    • Author(s)
      Shuhei Toba,Yoshihide Mitani,Hiroyuki Ohashi,Hirofumi Sawada,Noriko Yodoya,Hidetoshi Hayakawa,Masahiro Hirayama,Ayano Futsuki,Naok iYamamoto,Hisato Ito,Takeshi Konuma,Hideto Shimpo,Motoshi Takao
    • Organizer
      American Heart Association
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 周産期・新生児期の病態に起因する肺高血圧へのアプローチ -多領域連携の重要性・必要性-2019

    • Author(s)
      澤田博文、三谷義英、淀谷典子、大橋啓之、大矢和伸、坪谷尚季、北村創矢、早川豪俊、丸山一男、平山雅浩
    • Organizer
      第55回日本小児循環器学会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] 閉塞性肺血管病変の退縮に向けた実験的アプローチ2019

    • Author(s)
      澤田博文
    • Organizer
      1st Japan PAH Frontier Summit
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Role of BMPR2 Mutation in Monocrotaline-induced Pulmonary Hypertension: Analysis Using Rats with a Crispr/Cas9-induced Truncating BMPR2 mutation2019

    • Author(s)
      Jane Kabwe, Hirofumi Sawada, Yoshihide Mitani, Hironori Oshita, Erquan Zhang, Junko Maruyama, Masahiro Hirayama, Kazuo Maruyama
    • Organizer
      Japanese Circulation Society
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] 新規PAH治療標的開発に向けた肺トランスクリプトーム解析の利用2018

    • Author(s)
      澤田博文、三谷義英、大下裕法、篠原務、Jane C. Kabwe、淀谷典子、大橋啓之、西村有平、丸山一男、平山雅浩
    • Organizer
      日本小児循環器学会・学術集会
    • Related Report
      2018 Research-status Report
    • Invited

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Published: 2017-04-28   Modified: 2021-02-19  

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