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Abstract
Background: Wnt proteins as growth factor have multiple functions in neural development, and especially serve key roles in differentiation and development. Wnt-3a is an intercellular signaling molecule that is involved in a variety of morphogenetic events. The purpose of this study was to investigate the effects of Wnt-3a signal protein on proliferation and differentiation of neural stem cells derived from adult mouse spinal cord.
Methods: Adult mouse neural stem cells were cultured with serum free incubation. The recombined plasmid pSecTag2/Hygro B-Wnt3a for eukaryotic expression transfected adult neural stem cell, then the expression protein was detected by Western blot. The differentiation of adult neural stem cells was identified by the immunocytochemical technique.
Results: The inducing differentiated rates of neurons were improved greatly by Wnt-3a protein compared with control (p<0.05).
Conclusion: Wnt-3a has obvious influence on the neuronal differentiation of adult neural stem cell.