Home Blog of Signal Transduction Stem Cells & Wnt TGF-beta/Smad Embryonic stem cells differentiated into neuron-like cells using SB431542 small molecule on nanofibrous PLA/CS/Wax scaffold

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Embryonic stem cells differentiated into neuron-like cells using SB431542 small molecule on nanofibrous PLA/CS/Wax scaffold

Electrospun nanofibrous scaffolds show huge potential to improve the neurological outcome in central nervous system disorders. In this study, we cultured mouse embryonic stem cells (mESCs) on an electrospun nanofibrous polylactic acid/Chitosan/Wax (PLA/CS/Wax) scaffold and surveyed the attachment, behavior, and differentiation of mESCs into neural cells. Differentiation in neural-like cells (NLCs) was investigated with a medium containing SB431542 as a small molecule and conjugated linolenic acid after 20 days. We used Immunocytochemistry and quantitative real-time polymerase chain reaction (RT-PCR) techniques to assess neural marker expression in differentiated cells. SEM imaging demonstrated that mESCs could strongly attach, stretch, and differentiate on PLA/CS/Wax scaffolds. MESCs that were cultured on PLA/CS/Wax scaffolds showed enhanced numbers of neural structures and neural markers including Nestin, NF-H, Tuj-1, and Map2 in neural induction medium compared to the control sample. These results revealed that electrospun PLA/CS/Wax scaffolds associated with the induction medium can assemble proper conditions for stem cell differentiation into NLCs. We hope that the development of new technologies in neural tissue engineering may pave a new avenue for neural tissue regeneration.

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S1067 SB431542 SB431542 is a potent and selective inhibitor of ALK5 with IC50 of 94 nM in a cell-free assay, 100-fold more selective for ALK5 than p38 MAPK and other kinases.

Related Targets

TGF-beta/Smad