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Neuroscience letters · Dec 2013
ReviewThe known knowns of microglia-neuronal signalling in neuropathic pain.
- Simon Beggs and Michael W Salter.
- Program in Neurosciences & Mental Health, Hospital for Sick Children, Toronto, ON M5G 1X8, Canada. Electronic address: simon.beggs@gmail.com.
- Neurosci. Lett. 2013 Dec 17;557 Pt A:37-42.
AbstractMicroglia are key cellular mediators of plasticity in the spinal cord that drives the development and maintenance of pain hypersensitivity following peripheral nerve damage. An essential reactive microglial phenotype is characterized by induced expression of purinergic P2X4 receptors. Activation of these receptors initiates a core microglial-neuronal signalling pathway which through disinhibition transforms the output of dorsal horn neurons projecting to the brain pain networks. Here we describe recent advances in elucidating molecules that regulate key aspects of this core pathway, and opportunities for targeting critical signalling hubs to treat neuropathic pain.Copyright © 2013 Elsevier Ireland Ltd. All rights reserved.
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