Effects of autologous stem cell transplantation on ventricular electrophysiology in doxorubicin-induced heart failure
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作者:
Chen, Mao
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Sichuan Univ, W China Hosp, Dept Cardiol, Chengdu 610041, Sichuan, Peoples R ChinaSichuan Univ, W China Hosp, Dept Cardiol, Chengdu 610041, Sichuan, Peoples R China
Chen, Mao
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Fan, Zhong-Cai
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机构:Sichuan Univ, W China Hosp, Dept Cardiol, Chengdu 610041, Sichuan, Peoples R China
Fan, Zhong-Cai
Liu, Xiao-Jing
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机构:Sichuan Univ, W China Hosp, Dept Cardiol, Chengdu 610041, Sichuan, Peoples R China
Liu, Xiao-Jing
Deng, Jue-Lin
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机构:Sichuan Univ, W China Hosp, Dept Cardiol, Chengdu 610041, Sichuan, Peoples R China
Deng, Jue-Lin
Zhang, Li
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机构:Sichuan Univ, W China Hosp, Dept Cardiol, Chengdu 610041, Sichuan, Peoples R China
Zhang, Li
Rao, Li
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机构:Sichuan Univ, W China Hosp, Dept Cardiol, Chengdu 610041, Sichuan, Peoples R China
Rao, Li
Yang, Qing
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机构:Sichuan Univ, W China Hosp, Dept Cardiol, Chengdu 610041, Sichuan, Peoples R China
Yang, Qing
Huang, De-Jia
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机构:Sichuan Univ, W China Hosp, Dept Cardiol, Chengdu 610041, Sichuan, Peoples R China
Huang, De-Jia
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[1] Sichuan Univ, W China Hosp, Dept Cardiol, Chengdu 610041, Sichuan, Peoples R China
[2] Sichuan Univ, W China Hosp, Cardiovasc Res Lab, Chengdu 610041, Sichuan, Peoples R China
To investigate whether stem cell transplantation affects ventricular electrophysiology in vivo, either autologous bone marrow mesenchymal stem cells or skeletal myoblast cells were transplanted via a catheter into a doxorubicin-treated failing heart. Four weeks after transplantation, electrophysiological investigation showed that transplantation of either cell type prolonged the local activation time and increased the activation time dispersion. In the stem cell transplantation groups, a positive correlation was demonstrated between activation time dispersion and the number of stem cell-derived cells in the pacing site. It is concluded that transplantation of either mesenchymal stem cells or skeletal myoblast cells might exacerbate abnormalities of local ventricular conduction in the doxorubicin-treated failing heart. (c) 2006 International Federation for Cell Biology. Published by Elsevier Ltd. All rights reserved.