Schwann cell proliferation and differentiation that is induced by ferulic acid through MEK1/ERK1/2 signalling promotes peripheral nerve remyelination following crush injury in rats

Zhu,Xiaoyan; Li,Kun; Guo,Xin; Wang,Jian; Xiang,Yang

doi:10.3892/etm.2016.3525

Schwann cell proliferation and differentiation that is induced by ferulic acid through MEK1/ERK1/2 signalling promotes peripheral nerve remyelination following crush injury in rats

Authors:
- Xiaoyan Zhu
- Kun Li
- Xin Guo
- Jian Wang
- Yang Xiang
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Affiliations: Center of Laboratory Medicine, Chengdu Military General Hospital, Chengdu, Sichuan 610083, P.R. China, Department of Neurology, Chengdu Military General Hospital, Chengdu, Sichuan 610083, P.R. China
Published online on: July 14, 2016 https://doi.org/10.3892/etm.2016.3525
Pages: 1915-1921

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Abstract

Schwann cell proliferation and differentiation is critical for the remyelination of injured peripheral nerves. Ferulic acid (FA) is a widely used antioxidant agent with neuroprotective properties. However, the potentially beneficial effects of FA on Schwann cells are unknown. Therefore, the present study was designed to examine the effects of FA on Schwann cell proliferation and differentiation. By using the cultured primary Schwann cells and proliferation assay, the results identified that FA was capable of increasing Schwann cell proliferation and expression of myelin‑associated glycoprotein (MAG) and myelin basic protein (MBP) in vitro. It was also observed that the beneficial effect of FA treatment on Schwann cells was mainly dependent on the activation of MEK1/ERK1/2 signalling. Furthermore, FA was intraperitoneally administered to rats with sciatic nerve crush injury, and the results revealed an increase in Schwann cell proliferation and differentiation, while the MAG and MBP expression levels in sciatic nerves were markedly upregulated following FA administration. In conclusion, the current results demonstrate that Schwann cell proliferation and differentiation is induced by FA through MEK1/ERK1/2 signalling and that FA may accelerate injured peripheral nerve remyelination.

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