SHP-2 Promotes the Maturation of Oligodendrocyte Precursor Cells Through Akt and ERK1/2 Signaling in Vitro

Overview

Journal PLoS One

Specialties General Medicine
Science

Date 2011 Jun 25

PMID 21701583

Citations 16

Authors

Xiujie Liu

Yuanyuan Li

Yong Zhang

Yan Lu

Wei Guo

Peng Liu

Jiazhen Zhou

Zhenghua Xiang

Cheng He

Affiliations

Soon will be listed here.

Abstract

Background: Oligodendrocyte precursor cells (OPCs) differentiate into oligodendrocytes (OLs), which are responsible for myelination. Myelin is essential for saltatory nerve conduction in the vertebrate nervous system. However, the molecular mechanisms of maturation and myelination by oligodendrocytes remain elusive.

Methods And Findings: In the present study, we showed that maturation of oligodendrocytes was attenuated by sodium orthovanadate (a comprehensive inhibitor of tyrosine phosphatases) and PTPi IV (a specific inhibitor of SHP-2). It is also found that SHP-2 was persistently expressed during maturation process of OPCs. Down-regulation of endogenous SHP-2 led to impairment of oligodendrocytes maturation and this effect was triiodo-L-thyronine (T3) dependent. Furthermore, over-expression of SHP-2 was shown to promote maturation of oligodendrocytes. Finally, it has been identified that SHP-2 was involved in activation of Akt and extracellular-regulated kinases 1 and 2 (ERK1/2) induced by T3 in oligodendrocytes.

Conclusions: SHP-2 promotes oligodendrocytes maturation via Akt and ERK1/2 signaling in vitro.

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