Abstract
Src-suppressed protein kinase C substrate (SSeCKS) plays an important role in the differentiation process. In regeneration of sciatic nerve injury, expression of SSeCKS decreases, mainly in Schwann cells. However, the function of SSeCKS in Schwann cells differentiation remains unclear. We observed that SSeCKS was decreased in differentiated Schwann cells. In long-term SSeCKS-reduced Schwann cells, cell morphology changed and myelin gene expression induced by cAMP was accelerated. Myelination was also enhanced in SSeCKS-suppressed Schwann cells co-culture with dorsal root ganglion (DRG). In addition, we found suppression of SSeCKS expression promoted Akt serine 473 phosphorylation in cAMP-treated Schwann cells. In summary, our data indicated that SSeCKS was a negative regulator of myelinating glia differentiation.
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