Authors
Damián Hernández, Rodney Millard, Priyadharshini Sivakumaran, Raymond CB Wong, Duncan E Crombie, Alex W Hewitt, Helena Liang, Sandy SC Hung, Alice Pébay, Robert K Shepherd, Gregory J Dusting, Shiang Y Lim
Publication date
2016
Journal
Stem cells international
Volume
2016
Issue
1
Pages
1718041
Publisher
Hindawi Publishing Corporation
Description
Background. Human induced pluripotent stem cells (iPSCs) are an attractive source of cardiomyocytes for cardiac repair and regeneration. In this study, we aim to determine whether acute electrical stimulation of human iPSCs can promote their differentiation to cardiomyocytes. Methods. Human iPSCs were differentiated to cardiac cells by forming embryoid bodies (EBs) for 5 days. EBs were then subjected to brief electrical stimulation and plated down for 14 days. Results. In iPS(Foreskin)‐2 cell line, brief electrical stimulation at 65 mV/mm or 200 mV/mm for 5 min significantly increased the percentage of beating EBs present by day 14 after plating. Acute electrical stimulation also significantly increased the cardiac gene expression of ACTC1, TNNT2, MYH7, and MYL7. However, the cardiogenic effect of electrical stimulation was not reproducible in another iPS cell line, CERA007c6. Beating EBs from control and …
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