Involvement of store-operated calcium entry in ischemia/reperfusion injury in the heart
Project/Area Number |
25460287
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
General physiology
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Research Institution | Shiga University of Medical Science |
Principal Investigator |
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Co-Investigator(Kenkyū-buntansha) |
KOJIMA Akiko 滋賀医科大学, 医学部, 助教 (50447877)
TOYODA Futoshi 滋賀医科大学, 医学部, 助教 (90324574)
|
Project Period (FY) |
2013-04-01 – 2016-03-31
|
Project Status |
Completed (Fiscal Year 2015)
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Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2013: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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Keywords | 虚血再灌流傷害 / 容量性カルシウム流入機構 / Ca2+過負荷 / 筋小胞体 / リアノジン受容体 / 2-APB / フレカイニド / ランゲンドルフ灌漑 / 心肥大モデルマウス / TAC手術 / 心室筋細胞 / Ca2+/カルモジュリン依存性タンパクキナーゼ / 筋小胞体リアンジン受容体 / カルシウムリーク / C57BL/6Jマウス / 大動脈狭窄 / 細胞拘縮 / 筋小胞体リアノジン受容体 / RyR2 / 容量性(ストア調節性)Ca2+流入機構 / SOCE / マウス摘出灌流心 / 左心室機能 / LaCl3 / TRPC |
Outline of Final Research Achievements |
The present investigation provides experimental evidence to support that the store-operated Ca2+ entry (SOCE) is involved in ischemia/reperfusion injury in the heart. For example, in Langendorff-perfused mouse heart model, reperfusion following 30 min of global ischemia was associated with contractile dysfunction such as elevation of left ventricular end-diastolic pressure and reduction of left ventricular developed pressure. These dysfunctions were partially but significantly attenuated by the SOCE blockers 2-aminoethoxydiphenyl borate (2-APB) and LaCl3. In addition, flecainide, which blocks Ca2+ leak through type2 ryanodine receptor and thereby preserves Ca+ content in SR, was also effective in preventing the contractile dysfunction associated with ischemia/reperfusion injury in the heart. These observations suggest that the drugs that block Ca2+ leak from SR have protective effects against ischemia/reperfusion injury in the heart.
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Report
(4 results)
Research Products
(51 results)
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[Journal Article] Gain-of-function KCNH2 mutations in patients with Brugada syndrome.2014
Author(s)
Wang Q, Ohno S, Ding WG, Fukuyama M, Miyamoto A, Itoh H, Makiyama T, Wu J, Bai J, Hasegawa K, Shinohara T, Takahashi N, Shimizu A, Matsuura H, Horie M.
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Journal Title
J Cardiovasc Electrophysiol.
Volume: 25
Issue: 5
Pages: 522533-522533
DOI
Related Report
Peer Reviewed / Open Access / Acknowledgement Compliant
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[Journal Article] A novel HCN4 mutation, G1097W, is associated with atrioventricular block.2014
Author(s)
Zhou J, Ding WG, Makiyama T, Miyamoto A, Matsumoto Y, Kimura H, Tarutani Y, Zhao J, Wu J, Zang WJ, Matsuura H, Horie M.
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Journal Title
Circ J
Volume: 78(4)
Pages: 2014-2014
NAID
Related Report
Peer Reviewed / Open Access
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[Journal Article] Long QT Syndrome Type8: Novel CACNA1C Mutations Causing QT Prolongation and Variant Phenotypes.2014
Author(s)
Fukuyama M, Wang Q, Kato K, Ohno S, Ding WG, Toyoda F, Itoh H, Kimura H, Makiyama T, Ito M, Matsuura H, Horie M.
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Journal Title
Europace.
Volume: in press
Issue: 12
Pages: 1828-37
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] A novel KCNQ1 missense mutation identified in a patient with juvenile-onset atrial fibrillation causes constitutively open IKs channels.2014
Author(s)
Hasegawa K, Ohno S, Ashihara T, Itoh H, Ding WG, Toyoda F, Makiyama T, Aoki H, Nakamura Y, Delisle BP, Matsuura H, Horie M.
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Journal Title
Heart Rhythm
Volume: 11
Issue: 1
Pages: 67-75
DOI
Related Report
Peer Reviewed
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[Journal Article] Cardiac channelopathies associated with infantile fatal ventricular arrhythmias: from the cradle to the bench.2014
Author(s)
Kato K, Makiyama T, Wu J, Ding WG, Kimura H, Naiki N, Ohno S, Itoh H, Nakanishi T, Matsuura H, Horie M.
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Journal Title
J Cardiovasc Electrophysiol
Volume: 25
Issue: 1
Pages: 66-73
DOI
Related Report
Peer Reviewed
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[Journal Article] A rare KCNE1 polymorphism, D85N, as a genetic modifier of long QT syndrome2014
Author(s)
Hasegawa K, Ohno S, Itoh H, Makiyama T, Aiba T, Nakano Y, Shimizu W, Matsuura H, Makita N, Horie M
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Journal Title
J Arrhythmia
Volume: in press
Issue: 3
Pages: 161-166
DOI
Related Report
Peer Reviewed
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[Journal Article] Genetically encoded fluorescent thermosensors visualize subcellular thermoregulation in living cells2013
Author(s)
Shigeki Kiyonaka, Taketoshi Kajimoto, Reiko Sakaguchi, Daisuke Shinmi, Mariko Omatsu-Kanbe, Hiroshi Matsuura, Hiromi Imamura, Takenao Yoshizaki, Itaru Hamachi, Takashi Morii, Yasuo Mori
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Journal Title
Nature Methods
Volume: 10
Issue: 12
Pages: 1232-1238
DOI
Related Report
Peer Reviewed
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