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Published on: July 17, 2016
The activation of NG2 expressing cells is downstream to microglial reaction and mediated by the transforming growth
Ping Xiang1, Lie Zhu2, Hua Jiang2
1Department of Anatomy, Yong Loo Lin School of Medicine, National University of Singapore, Singapore.
Abstract:
In the present study, we investigated the mechanism of activation of NG2 expressing cells. Application of microglial inhibitors not only attenuated morphological changes but also significantly retarded increase in the number of NG2 expressing cells. Intracerebral injection of TGF-β1 led to a profound activation of NG2 glia as well as an earlier accumulation of NG2(+)-microglia, whilst inhibition of TGF-β1 Smad2/3 signalling pathway eventually attenuated their active responses. We conclude that the activation of NG2 expressing cells is an event downstream to microglial reaction and TGF-β1 secreted from microglia might play an important role in modulation of the function of NG2 expressing cells.
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