Published online Mar 26, 2015. doi: 10.4252/wjsc.v7.i2.437
Peer-review started: July 18, 2014
First decision: August 28, 2014
Revised: September 12, 2014
Accepted: December 16, 2014
Article in press: December 16, 2014
Published online: March 26, 2015
Processing time: 245 Days and 17.7 Hours
Core tip: Neurons are derived from embryonic stem cells (ESCs) and have been a focus of research recently, particularly because of their application in regenerative medicine. Here we review and summarize the signaling pathways that have been reported to be involved in neuronal differentiation of ESCs, mainly in vitro. The inducers and pathways explored include retinoic acid, Wnt/β-catenin, transforming growth factor/bone morphogenetic protein, Notch, fibroblast growth factor, cytokine, Hedgehog, c-Jun N-terminal kinase/mitogen-activated protein kinase and others. Some miscellaneous factors are also explored. Elucidating these signals in detail should make a significant contribution to future progress in stem cell biology and should also accelerate the application of stem cells in translational medicine.
