2016 Fiscal Year Annual Research Report
Elucidation of novel pathophysiology underlysing lethal arrhythmia due to mutations in cardiac ion transporters
Project/Area Number |
15H04823
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Research Institution | Nagasaki University |
Principal Investigator |
蒔田 直昌 長崎大学, 医歯薬学総合研究科(医学系), 教授 (00312356)
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Co-Investigator(Kenkyū-buntansha) |
吉浦 孝一郎 長崎大学, 原爆後障害医療研究所, 教授 (00304931)
牧山 武 京都大学, 医学研究科, 助教 (30528302)
渡邊 泰秀 浜松医科大学, 医学部, 教授 (50305380)
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Project Period (FY) |
2015-04-01 – 2018-03-31
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Keywords | Na/Ca交換体 / 心室細動 / カルモジュリン |
Outline of Annual Research Achievements |
原因不明の致死性不整脈の病態として、細胞内Ca制御に係わるイオン輸送体に着目し、網羅的遺伝子解析と変異イオン輸送体機能解析を通じて、心臓突然死の予知予防への応用を目指す。初年度、致死性不整脈蘇生例15人に対して行った全エクソン解析・ターゲットエクソン解析から種々の遺伝子変異を同定したが、本年度は、カルモジュリン(CALM2)とNa-Ca交換体(NCX1;SLC8A1)に着目し機能解析を行った。 CALM2-N98Sは12歳のQT延長症候群患者に認められたde novo変異だが、患者末梢血からiPS心筋細胞を作成し、活動電位の延長を認め、その原因がCalmodulinの変異がL型CaチャネルのCa誘発性不活性化を傷害することであることを明らかにした。さらにCRISPR/cas9ゲノム編集技術でiPSの変異アレルを特異的に破壊することで活動電位持続時間が回復することを明らかにした(Yamamoto, Makita et al, Hum Mol Genet, 2017)。 特発性心室細動の遺伝子解析についてフランスINSERMと共同研究を行い、7個のSLC8A1(NCX1)変異を同定した。これらの変異は、細胞発現系を用いた解析で、45Ca取り込み能とNa/Ca交換電流の低下を認めた。さらに、O’Hara-Rudyヒト心室筋モデルと姫野らのヒト心室筋モデル(HuVEC)という2種類のモデルを用いてシミュレーションを行ったところ、活動電位の短縮と細胞内Ca濃度の上昇を認めた。
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Current Status of Research Progress |
Current Status of Research Progress
2: Research has progressed on the whole more than it was originally planned.
Reason
CALM2の論文は、CRISPR/Cas9を用いた新たな遺伝子治療に結び付く極めてimpactの高い研究である(Yamamoto, Makita et al , Hum Mol Genet, 2017)。NCX1に関する研究はほぼデータがそろっているが、現在変異タンパクの細胞内局在を示すin vitro実験を行っている。
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Strategy for Future Research Activity |
今後NCX1の細胞外ドメインを認識する抗体を用いて、変異NCX1タンパクの細胞内発現部位を、生きた細胞で映像化し、さらに電気生理学特性をパッチクランプで解析し論文化する予定である
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Research Products
(52 results)
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[Journal Article] Allele-specific ablation rescues electrophysiological abnormalities in a human iPS cell model of long-QT syndrome with a CALM2 mutation2017
Author(s)
Yamamoto Y, Makiyama T, Harita T, Sasaki K, Wuriyanghai Y, Hayano M, Nishiuchi S, Kohjitani H, Hirose S, Chen J, Yokoi F, Ishikawa T, Ohno S, Chonabayashi K, Motomura H, Yoshida Y, Horie M, Makita N, Kimura T
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Journal Title
Hum Mol Genet
Volume: 26
Pages: 1670-1677.
DOI
Peer Reviewed / Int'l Joint Research
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[Journal Article] Genotype-Phenotype Correlation of SCN5A Mutation for the Clinical and Electrocardiographic Characteristics of Probands With Brugada Syndrome: A Japanese Multicenter Registry2017
Author(s)
Yamagata K, Horie M, Aiba T, Ogawa S, Aizawa Y, Ohe T, Yamagishi M, Makita N, Sakurada H, Tanaka T, Shimizu A, Hagiwara N, Kishi R, Nakano Y, Takagi M, Makiyama T, Ohno S, Fukuda K, Watanabe H, Morita H, Hayashi K, Kusano K, Kamakura S, Yasuda S, Ogawa H, Miyamoto Y, Kapplinger JD, Ackerman MJ, Shimizu W
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Journal Title
Circulation
Volume: 135
Pages: 2255-2270.
DOI
Peer Reviewed / Int'l Joint Research
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[Journal Article] Progressive atrial conduction system defects associated with bone malformation caused by a connexin45 mutation2017
Author(s)
Seki A, Ishikawa T, Daumy X, Mishima H, Barc J, Sasaki R, Nishii K, Saito K, Urano M, Ohno S, Otsuki S, Kimoto H, Baruteau A, Thollet A, Fouchard S, Bonnaud S, Parent P, Shibata Y, Perrin JP, Le Marec H, Hagiwara N, Mercier S, Horie M, Probst V, Yoshiura KI, Redon R, Schott JJ, Makita N
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Journal Title
J Am Coll Cardiol
Volume: 70
Pages: 58-70.
DOI
Peer Reviewed / Int'l Joint Research
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[Journal Article] Postmortem genetic analysis of sudden unexpected death in infancy: neonatal genetic screening may enable the prevention of sudden infant death2017
Author(s)
Oshima Y, Yamamoto T, Ishikawa T, Mishima H, Matsusue A, Umehara T, Murase T, Abe Y, Kubo SI, Yoshiura KI, Makita N, Ikematsu K
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Journal Title
J Hum Genet
Volume: 62
Pages: 989-995.
DOI
Peer Reviewed
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[Journal Article] Flecainide ameliorates arrhythmogenicity through NCX flux in Andersen-Tawil syndrome-iPS cell-derived cardiomyocytes2017
Author(s)
Kuroda Y, Yuasa S, Watanabe Y, Ito S, Egashira T, Seki T, Hattori T, Ohno S, Kodaira M, Suzuki T, Hashimoto H, Okata S, Tanaka A, Aizawa Y, Murata M, Aiba T, Makita N, Furukawa T, Shimizu W, Kodama I, Ogawa S, Kokubun N, Horigome H, Horie M, Kamiya K, Fukuda K
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Journal Title
Biochemistry and Biophysics Reports
Volume: 9
Pages: 245-256.
DOI
Peer Reviewed / Open Access
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[Journal Article] Sick sinus syndrome with HCN4 mutations shows early onset and frequent association with atrial fibrillation and left ventricular noncompaction2017
Author(s)
Ishikawa T, Ohno S, Murakami T, Yoshida K, Mishima H, Fukuoka T, Kimoto H, Sakamoto R, Ohkusa T, Aiba T, Nogami A, Sumitomo N, Shimizu W, Yoshiura KI, Horigome H, Horie M, Makita N
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Journal Title
Heart Rhythm
Volume: 14
Pages: 717-724.
DOI
Peer Reviewed
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[Journal Article] The Phenotypic Spectrum of a Mutation?Hotspot Responsible for the?Short QT Syndrome2017
Author(s)
Hu D, Li Y, Zhang J, Pfeiffer R, Gollob MH, Healey J, Harrell DT, Makita N, Abe H, Sun Y, Guo J, Zhang L, Yan G, Mah D, Walsh EP, Leopold HB, Giustetto C, Gaita F, Zienciuk-Krajka A, Mazzanti A, Priori SG, Antzelevitch C, Barajas-Martinez H
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Journal Title
JACC: Clinical Electrophysiology
Volume: 3
Pages: 727-743.
DOI
Peer Reviewed / Int'l Joint Research
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[Journal Article] Embryonic type Na+ channel beta-subunit, SCN3B masks the disease phenotype of Brugada syndrome2016
Author(s)
Okata S, Yuasa S, Suzuki T, Ito S, Makita N, Yoshida T, Li M, Kurokawa J, Seki T, Egashira T, Aizawa Y, Kodaira M, Motoda C, Yozu G, Shimojima M, Hayashiji N, Hashimoto H, Kuroda Y, Tanaka A, Murata M, Aiba T, Shimizu W, Horie M, Kamiya K, Furukawa T, Fukuda K
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Journal Title
Sci Rep
Volume: 6
Pages: 34198.
DOI
Peer Reviewed
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[Journal Article] Reply: Search for Evidence-Based Medicine for Brugada Syndrome: The Complex Network of the Brugada Syndrome2016
Author(s)
Nademanee K, Raju H, De Noronha S, Papadakis M, Robinson L, Rothery S, Makita N, Kowase S, Boonmee N, Vitayakritsirikul V, Ratanarapee S, Sharma S, van der Wal AC, Christiansen M, Tan HL, Wilde AA, Nogami A, Sheppard MN, Veerakul G, Behr ER
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Journal Title
J Am Coll Cardiol
Volume: 67
Pages: 1658-1659.
DOI
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Targeted resequencing identifies TRPM4 as a major gene predisposing to progressive familial heart block type I2016
Author(s)
Daumy X, Amarouch MY, Lindenbaum P, Bonnaud S, Charpentier E, Bianchi B, Nafzger S, Baron E, Fouchard S, Thollet A, Kyndt F, Barc J, Le Scouarnec S, Makita N, Le Marec H, Dina C, Gourraud JB, Probst V, Abriel H, Redon R, Schott JJ
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Journal Title
Int J Cardiol
Volume: 207
Pages: 349-358.
DOI
Peer Reviewed / Int'l Joint Research
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[Presentation] lL-cis-Diltiazem Ameliorates Impaired Calcium Channel Inactivation in a Patient-Specific Stem Cell Model of Long-QT Syndrome with a Calmodulin Mutation2017
Author(s)
Yokoi F, Makiyama T, Harita T, Yamamoto Y, Hayano M, Nishiuchi S, Kohjitani H, Wuriyanghai Y, Hirose S, Toyoda F, Yoshida Y, Makita N, Horie M, Kimura T.
Organizer
The 10th Asia Pacific Heart Rhythm Society Scientific Session
Int'l Joint Research
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[Presentation] Allele-specific ablation rescues electrophysiological abnormalities in a human iPS cell model of long-QT syndrome with a CALM2 mutation2017
Author(s)
Yamamoto Y, Makiyama T, Harita T, Sasaki K, Wuriyanghai Y, Nishiuchi S, Kohjitani H, Hirose S, Ishikawa T, Motomura H, Ohno S, Yoshida Y, Horie M, Makita N, Kimura T.
Organizer
第81回日本循環器学会学術集会
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[Presentation] CALM2-D134H Mutation Associated With Long-QT Syndrome Delayed Inactivation of L-type Ca2+ Currents in Human iPS Cells Derived Cardiomyocytes.2017
Author(s)
Yamamoto Y, Makiyama T, Harita T, Hayano M, Nishiuchi S, Wuriyanghai Y, Kohjitani H, Hirose S, Yokoi F, Ishikawa T, Ohno S, Chonabayashi K, Suda K, Yoshida Y, Horie M, Makita N, Kimura T.
Organizer
American Heart Association Annual Scientific Session 2017
Int'l Joint Research
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[Presentation] CALM2-D134H Mutation Associated with Long-QT Syndrome Prevents Inactivation of L-type Ca2+ Currents in Human iPS Cell Derived Cardiomyocytes.2017
Author(s)
Yamamoto Y, Makiyama T, Harita T, Hayano M, Nishiuchi S, Wuriyanghai Y, Kohjitani H, Hirose S, Yokoi F, Ishikawa T, Ohno S, Chinabayashi K, Suda K, Yoshida Y, Horie M, Makita N, Kimura T.
Organizer
The 10th Asia Pacific Heart Rhythm Society Scientific Session
Int'l Joint Research
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[Presentation] Genotype-Phenotype Correlation of SCN5A Mutations for the Clinical and Electrocardiographic Characteristics of Probands with Brugada Syndrome: A Japanese Multicenter Registry2017
Author(s)
Yamagata K, Horie M, Aiba T, Ogawa S, Aizawa Y, Ohe T, Yamagishi M, Makita N, Sakurada H, Tanaka T, Shimizu A, Hagiwara N, Kishi R, Nakano Y, Takagi M, Makiyama T, Ohno S, Fukuda K, Watanabe H, Morita H, Hayashi K, Fukushima-Kusano K, Kamakura S, Yasuda S, Ogawa H, Y. M, Kapplinger J, Ackerman M, Shimizu W.
Organizer
第81回日本循環器学会学術集会
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[Presentation] Gene-Based Risk Stratification for Cardiac Disorders in LMNA Mutation Carriers2017
Author(s)
Nishiuchi S, Makiyama T, Aiba T, Nakajima K, Ishikawa T, Murakoshi N, Watanabe H, Ohno S, Doi T, Shizuta S, Minamino T, Saito Y, Oginosawa Y, Nogami A, Aonuma K, Kusano K, Makita N, Shimizu W, Horie M, Kimura T.
Organizer
The 10th Asia Pacific Heart Rhythm Sosiety Scientific Session
Int'l Joint Research
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[Presentation] Genetic-based risk stratification for cardiac disorders in LMNA mutation carriers2017
Author(s)
Nishiuchi S, Aiba T, Nakajima K, Hirose S, Kohjitani H, Yamamoto Y, Harita T, Hayano M, Sasaki K, Ishikawa T, Onoue K, Saito Y, Kusano K, Makita N, Shimizu W, Horie M, Kimura T.
Organizer
第81回日本循環器学会学術集会
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[Presentation] Gene-Based Risk Stratification for Cardiac Disorders in LMNA Mutation Carriers in Japan2017
Author(s)
Nishiuchi S, Aiba T, Makiyama T, Nakajima K, Yagihara N, Ishikawa T, Onoue K, Murakoshi N, Watanabe I, Ohkubo K, Watanabe H, Ohno S, Doi T, Shizuta S, Minamino T, Saito Y, Oginosawa Y, Nogami A, Aonuma K, Kusano K, Makita N, Shimizu W, Horie M, Kimura T.
Organizer
American Heart Association Annual Scientific Session 2017
Int'l Joint Research
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[Presentation] De novo and Familial Connexin45 Mutant R75H Causes Progressive Atrioventricular Block Associated with Craniofacial and Dentodigital Dysmorphisms2017
Author(s)
Makita N, Seki A, Ishikawa T, Dawmy X, Mishima H, Barc J, Sasaki R, Nishii K, Saito K, Urano M, Ohno S, Otsuki S, Kimoto H, Baruteau A, Aurelie T, Swanny F, St?phanie B, Parent P, Shibata Y, Perrin JJ, Le Marec H, Hagiwara N, Mercier S, Horie M, Probst V, Yoshiura K, Redon R, Schott J, J.
Organizer
Printemps de la Cardiologie Recherche Fondamentale et Clinique
Int'l Joint Research / Invited
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[Presentation] Sick sinus syndrome caused by HCN4 mutations shows early onset and frequent association with atrial fibrillation and left ventricular non-compaction2017
Author(s)
Ishikawa T, Ohno S, Murakami T, Yoshida K, Fukuoka T, Mishima H, Kimoto H, Aiba T, Nogami A, Sumitomo N, Shimizu W, Horigome H, Yoshiura KI, Horie M, Makita N.
Organizer
Heart Rhythm Society Scientific Sessions
Int'l Joint Research
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[Presentation] Mutation Spot-sensitive Clinical Features and Risk of Life-threatening Arrhythmia in Long QT Syndrome Type 1 in Japan2017
Author(s)
Aiba T, Makimoto H, Yagihara N, Watanabe H, Ohno S, Hayashi K, Sumitomo N, Yoshinaga M, Morita H, Miyamoto Y, Makita N, Horie M, Yasuda S, Kusano K, Shimizu W.
Organizer
第81回日本循環器学会学術集会
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[Presentation] 心臓刺激伝導系と心室の電気的興奮現象のマルチスケールシミュレーション研究2016
Author(s)
稲田慎, ハーレルダニエル, 原口亮, 芦原貴司, 相庭武司, 山下富義, 柴田仁太郎, 池田隆徳, 三井和幸, 蒔田直昌, 本荘晴朗, ボエットマーク, 中沢一雄.
Organizer
第93回日本生理学会大会
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[Presentation] ECG Screening of 1-month-old Infants May Prevent Out-of-hospital Cardiac Arrest in Infancy2016
Author(s)
Yoshinaga M, Ohno S, Ushinohama H, Sato S, Miyamoto T, Tauchi N, Horigome H, Sumitomo N, Shiraishi H, Ichida F, Hata T, Nomura Y, Horie M, Makita N, Nagashima M.
Organizer
American Heat Association Scientific Meeting 2016
Int'l Joint Research
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[Presentation] Modeling of long-QT syndrome associated with a calmodulin mutation using human induced pluripotent stem cells2016
Author(s)
Yamamoto Y, Makiyama T, Harita T, Sasaki K, Hayano M, Nishiuchi S, Wuriyanghai Y, Kohjitani H, Hirose S, Cheng J, Ishikawa T, Ohno S, Yoshida Y, Horie M, Makita N, Kimura T.
Organizer
第63回日本不整脈心電学会学術大会
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[Presentation] Conditional knockout mice recapitulated two families with congenital AV block and sick sinus syndrome with a novel connexin 45 mutation.2016
Author(s)
Nishii A, Ishikawa T, Daumy X, Urano M, Saito K, Baruteau A, Nishii K, Shibata Y, Kobayashi Y, Redon R, Schott JJ, Probst V, Hagiwara N, Makita N.
Organizer
第80回日本循環器学会学術集会
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[Presentation] Catheter Ablation of Brugada Syndrome:Further Evidence of Conduction Delay in the Right Ventricular Subepicardium as Mechanism of Brugada ECG and Ventricular Fibrillation2016
Author(s)
Nakagawa H, Sakamoto Y, Yamashiro K, Takagi M, Kusano K, Noda T, Yamazaki M, Honjo H, Makita N, Tsuchiya T, Hoogeudiik MG, Nademanee K.
Organizer
第63回日本不整脈心電学会学術大会
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[Presentation] Common genetic variants at SCN5A, SCN10A, and HEY2 are associated with cardiac conduction disturbance in patients with Brugada syndrome2016
Author(s)
Murakoshi N, Xu D, Nogami A, Makita N, Sekiguchi Y, Kurosaki K, Kowase S, Naruse Y, Aonuma K.
Organizer
第63回日本不整脈心電学会学術大会
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