• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

2019 Fiscal Year Annual Research Report

Elucidation of transcriptional and epigenomic regulation for maintaining normal cardiac function

Research Project

Project/Area Number 17H04174
Research InstitutionShinshu University

Principal Investigator

桑原 宏一郎  信州大学, 学術研究院医学系, 教授 (30402887)

Co-Investigator(Kenkyū-buntansha) 木下 秀之  京都大学, 医学研究科, 特定准教授 (30467477)
中川 靖章  京都大学, 医学研究科, 助教 (70452357)
Project Period (FY) 2017-04-01 – 2020-03-31
Keywords心不全 / 転写因子 / エピゲノム / 遺伝子
Outline of Annual Research Achievements

本年度は以下の研究を行った。1), 転写抑制因子NRSFによる心機能維持機構におけるGNAO1の意義の解明。昨年度までの研究において、心筋特異的NRSFノックアウトマウスおよび優性抑制変異NRSF心筋特異的過剰発現マウス(dnNRSF-Tg)の心機能低下にGaphaOタンパクをコードするGNAO1遺伝子の発現亢進の関与を見出した。本年度はその分子機序を詳細に検討し、GalphaOの発現亢進がT管以外の細胞膜表面からのCaイオン流入増加をきたし、それがCaMKを活性化することでSRたんぱく質の機能異常を引き起こすことが、心機能低下につながる機序であることを見出した。また心筋特異的GNAO1過剰発現マウスを作成し、その表現型解析より心機能低下をきたすことを見出し、GalphaO発現亢進が心機能低下に十分条件であることを確認した。2)心筋特異的HDAC1/2コンディショナルノックアウトマウス(CKO)の解析。昨年度までに心筋特異的HDAC1/2ダブルCKOは心機能低下を示すことを見出した。また遺伝子発現解析の結果、心筋特異的HDAC1/2ダブルCKOの心室ではNRSFにより制御される心筋胎児型遺伝子に加え、Notchシグナルの下流働く転写抑制因子であるHrt2で制御される心房特異的遺伝子も心室で発現していることを見出し、HDAC1/2が心室筋において遺伝子発現を時間的、空間的に制御していることを見出した。3)LSD1 CKOおよびG9a CKOの解析を継続した。4)の解析を継続した。5)Rho依存性転写活性化因子MRTF-Aの新規心不全治療標的としての意義の解明。MRTF-Aノックアウトマウスを心筋症・心不全モデル(dnNRSF-Tgマウス、Galpa q過剰発現マウス、トロポニンT変異マウス)と交配し、その表現型と分子機序の解析を継続した

Research Progress Status

令和元年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

令和元年度が最終年度であるため、記入しない。

  • Research Products

    (26 results)

All 2020 2019 Other

All Int'l Joint Research (1 results) Journal Article (11 results) (of which Peer Reviewed: 11 results,  Open Access: 8 results) Presentation (12 results) (of which Int'l Joint Research: 8 results,  Invited: 2 results) Book (1 results) Remarks (1 results)

  • [Int'l Joint Research] Texas Southwestern Medical Center/Michigan State University/UCSF(米国)

    • Country Name
      U.S.A.
    • Counterpart Institution
      Texas Southwestern Medical Center/Michigan State University/UCSF
  • [Journal Article] Atrial and brain natriuretic peptides: Hormones secreted from the heart.2019

    • Author(s)
      Nakagawa Y, Nishikimi T, Kuwahara K
    • Journal Title

      Peptides

      Volume: 111 Pages: 18-25

    • DOI

      10.1016/j.peptides.2018.05.012.

    • Peer Reviewed / Open Access
  • [Journal Article] Comparison of leg loader and treadmill exercise for evaluating patients with peripheral artery disease2019

    • Author(s)
      Ueki Y, Miura T, Mochidome T, Senda K, Ebisawa S, Saigusa T, Motoki H, Okada A, Koyama J, Kuwahara K.
    • Journal Title

      Heart Vessels

      Volume: 34 Pages: 590-596

    • DOI

      10.1007/s00380-018-1274-6.

    • Peer Reviewed / Open Access
  • [Journal Article] Establishment of a Healthcare System for Patients With Adult Congenital Heart Disease in Collaboration With Children's Hospital - The Nagano Model.2019

    • Author(s)
      Motoki H, Yasukochi S, Takigiku K, Takei K, Okamura T, Kimura K, Minamisawa M, Okada A, Saigusa T, Ebisawa S, Seto T, Shoda M, Okada K, Kuwahara K
    • Journal Title

      Circ J

      Volume: 83 Pages: 424-431

    • DOI

      10.1253/circj.CJ-18-0705.

    • Peer Reviewed / Open Access
  • [Journal Article] Utility of copeptin for predicting long-term clinical outcomes in patients with heart failure2019

    • Author(s)
      Yoshikawa Y, Shiomi H, Kuwahara K, Sowa N, Yaku H, Yamashita Y, Tazaki J, Imai M, Kato T, Saito N, Shizuta S, Ono K, Kimura T.
    • Journal Title

      J Cardiol

      Volume: 73 Pages: 379-385

    • DOI

      10.1016/j.jjcc.2018.11.008

    • Peer Reviewed
  • [Journal Article] Impact of Therapeutic Angiogenesis Using Autologous Bone Marrow-Derived Mononuclear Cells Implantation in Critical Limb Ischemia With Scleroderma - Subanalysis of the Long-Term Clinical Outcomes Survey2019

    • Author(s)
      Shoji K, Yanishi K, Yoshimi R, Hamada N, Kondo K, Fujimoto K, Nakajima H, Kuwahara K, Higashi Y, Fukumoto Y, Murohara T, Matoba S; TACT Follow up Study Investigators
    • Journal Title

      Circ J

      Volume: 83 Pages: 662-671

    • DOI

      10.1253/circj.CJ-18-1044.

    • Peer Reviewed / Open Access
  • [Journal Article] Role of echocardiography in assessing cardiac amyloidoses: a systematic review.2019

    • Author(s)
      Koyama J, Minamisawa M, Sekijima Y, Kuwahara K, Katsuyama T, Maruyama K.
    • Journal Title

      J Echocardiogr

      Volume: 17 Pages: 64-75

    • DOI

      10.1007/s12574-019-00420-5.

    • Peer Reviewed / Open Access
  • [Journal Article] Overexpression of the HCN2 channel increases the arrhythmogenicity induced by hypokalemia2019

    • Author(s)
      Oshita K, Kozasa Y, Nakagawa Y, Kuwabara Y, Kuwahara K, Nakagawa T, Nakashima N, Hiraki T, Takano M.
    • Journal Title

      J Physiol Sci.

      Volume: 69 Pages: 653-660

    • DOI

      10.1007/s12576-019-00684-7

    • Peer Reviewed / Open Access
  • [Journal Article] MRTF-A regulates proliferation and survival properties of pro-atherogenic macrophages.2019

    • Author(s)
      An J, Naruse TK, Hinohara K, Soejima Y, Sawabe M, Nakagawa Y, Kuwahara K, Kimura A.
    • Journal Title

      J Mol Cell Cardiol

      Volume: 133 Pages: 26-35

    • DOI

      10.1016/j.yjmcc.2019.05.015

    • Peer Reviewed
  • [Journal Article] Association of Mineralocorticoid Receptor Antagonist Use With All-Cause Mortality and Hospital Readmission in Older Adults With Acute Decompensated Heart Failure.2019

    • Author(s)
      Yaku H, Kato T, Morimoto T, Inuzuka Y, Tamaki Y, Ozasa N, Yamamoto E, Yoshikawa Y, Kitai T, Taniguchi R, Iguchi M, Kato M, et al.
    • Journal Title

      JAMA Netw Open

      Volume: 2 Pages: e195892.

    • DOI

      10.1001/jamanetworkopen.2019.5892.

    • Peer Reviewed / Open Access
  • [Journal Article] Impact of inpatient cardiac rehabilitation on Barthel Index score and prognosis in patients with acute decompensated heart failure.2019

    • Author(s)
      Motoki H, Nishimura M, Kanai M, Kimura K, Minamisawa M, Yamamoto S, Saigusa T, Ebisawa S, Okada A, Kuwahara K.
    • Journal Title

      Int J Cardiol.

      Volume: 293 Pages: 125-130

    • DOI

      10.1016/j.ijcard.2019.06.071.

    • Peer Reviewed
  • [Journal Article] Association between reactive hyperemia peripheral arterial tonometry index and atrial fibrillation recurrence after catheter ablation.2019

    • Author(s)
      Kobayashi H, Okada A, Tabata H, Shoin W, Okano T, Yoshie K, Oguchi Y, Kato K, Shoda M, Kuwahara K
    • Journal Title

      Int J Cardiol Heart Vasc

      Volume: 24 Pages: 100385

    • DOI

      10.1016/j.ijcha.2019.100385.

    • Peer Reviewed / Open Access
  • [Presentation] Impact of electrical reverse remodeling by cardiac resynchronization therapy on adverse cardiac events in patients of heart failure with reduced ejection fraction.2020

    • Author(s)
      Kobayashi H, Okada A, Tabata H, Shoin W, Okano T, Yoshie K, Shoda M, Kuwahara K.
    • Organizer
      uropean Heart Rhythm Association Congress (EHRA) 2020
    • Int'l Joint Research
  • [Presentation] The impact of residual SYNTAX score after endovascular treatment peripheral artery disease2020

    • Author(s)
      Kato T, Miura T, ,Motoki H, Kuwahara K, et al.
    • Organizer
      The Leipzig Interventional Course(LINC)2020
    • Int'l Joint Research
  • [Presentation] Increased Gao expression underlies cardiac dysfunction and lethal arrhythmias accompanied with abnormal Ca2+ handling2019

    • Author(s)
      Inazumi H, Kuwahara K, Kuwabara Y, Nakagawa Y, Kinoshita H, Moriuchi K, Yanagisawa H, Nishikimi T, Oya M, Yamada M, Kashihara T, Kurebayashi N, Sugihara M, Nakao K, Kimura T.
    • Organizer
      ESC Congress 2019
    • Int'l Joint Research
  • [Presentation] 抑制性G蛋白サブユニットGαoの発現亢進はCa2+ handlingの異常を介して心不全進展にかかわる2019

    • Author(s)
      稲住英明 桑原宏一郎 桒原佳宏 中川靖章 木下秀之 森内健史 柳澤洋 錦見俊雄 大矢未来 山田充彦 柏原俊英 呉林なごみ 中尾一和 木村剛
    • Organizer
      第56回日本臨床分子医学会学術集会
  • [Presentation] athological roles of TRP channels in heart failure2019

    • Author(s)
      Kuwahara K
    • Organizer
      ISHR World Congress 2019
    • Int'l Joint Research / Invited
  • [Presentation] Clinical Characteristics of Late Catch-up Phenomenon after Implantation of 2nd Generation Drug Eluting Stent from SHINANO 5years Registry.2019

    • Author(s)
      Saigusa T, Miura T, Taki M, Kobayashi M, Kanai M, Okuma Y, Yanagisawa T, Hashizume N, Otagiri K, Shoin K, Nagae A, Sakai T, Senda K, Kato T, Ebisawa S, Miyashita Y, Motoki H, Kuwahara K.
    • Organizer
      ESC Congress 2019
    • Int'l Joint Research
  • [Presentation] Impact of Left Ventricular Ejection Fraction in Patients with Peripheral Artery Disease : From I-PAD Registry2019

    • Author(s)
      Fujimori K, Nagae A, Kuwahara K, et al.
    • Organizer
      ESC Congress 2019
    • Int'l Joint Research
  • [Presentation] Arrest of progression of cardiac amyloidosis after chemotherapy predicts favorable outcome in patients with light-chain amyloidosis2019

    • Author(s)
      Koyama J, Minamisawa M, Kuwahara K
    • Organizer
      ESC Asia with APSC&AFC
    • Int'l Joint Research
  • [Presentation] Increased Gαo expression plays a pivotal role in the progression of heart failure by impairing Ca2+ handling2019

    • Author(s)
      Hideaki Inazumi, Koichiro Kuwahara, Yoshihiro Kuwabara, Yasuaki Nakagawa, Hideyuki Kinoshita、Kenji Moriuchi, Hiromu Yanagisawa, Toshio Nishikimi,Kazuwa Nakao, Takeshi Kimura
    • Organizer
      BCVS2019
    • Int'l Joint Research
  • [Presentation] 機械弁症例の周産期管理2019

    • Author(s)
      元木博彦
    • Organizer
      日本心エコー図学会第30回学術集会
  • [Presentation] 成人フォンタン患者の心エコーの役割.2019

    • Author(s)
      元木博彦
    • Organizer
      日本心エコー図学会第30回学術集会
    • Invited
  • [Presentation] Increased expression of Gαo plays a pivotal role in the progression of heart failure by impairing Ca2+ homeostasis2019

    • Author(s)
      H Inazumi, K Kuwahara, Y Kuwabara, Y Nakagawa, H Kinoshita, K Moriuchi, H Yanagisawa , T Nishikimi , M Oya, M Yamada, T Kashihara, N Kurebayashi, M Sugihara, K Nakao, T Kimura
    • Organizer
      第36回国際心臓研究学会日本部会
  • [Book] 循環器疾患の最新医療2019

    • Author(s)
      永井良三、他
    • Total Pages
      512
    • Publisher
      先端利用技術研究所
    • ISBN
      978-4-925089-62-3
  • [Remarks] 信州大学医学部循環器内科

    • URL

      http://www.shinshu-u.ac.jp/faculty/medicine/department/doctor/zouki/i-oreg/cardiovascular/

URL: 

Published: 2021-01-27  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi