Abstract
Objectives
As activin/nodal signaling plays a key role in definitive endoderm (DE) differentiation, we have explored activin A-induced differentiation of DE from human parthenogenetic embryonic stem cells (hPESCs).
Results
Administration of 5 ng activin A/ml had no effect on the expression of markers of DE differentiation. However, higher concentrations of activin A (50 and 100 ng/ml) upregulated Sox17 and Cxcr4, as well upregulating the mesendodermal precursor marker, Brachyury.
Conclusions
These findings demonstrate that low dose activin A can maintain the undifferentiated potency of hPESCs, whereas higher doses induce DE differentiation; 50 ng/ml is the optimal concentration for inducing DE from hPESCs.
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Acknowledgments
This study was supported by Grants from the Applied Basic Research Project of Yunnan Province (2013FZ179, 2014FB040).
Supporting information
Supplementary Table 1—Primer sequences and annealing temperatures.
Supplementary Fig. 1—Histological analysis of teratomas formed from injected hPESCs maintained in culture using an hFF feeder layer.
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Wang, Z., Li, W., Chen, T. et al. Activin A can induce definitive endoderm differentiation from human parthenogenetic embryonic stem cells. Biotechnol Lett 37, 1711–1717 (2015). https://doi.org/10.1007/s10529-015-1829-x
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DOI: https://doi.org/10.1007/s10529-015-1829-x