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Microglia in neuropathic pain: involvement of ATP receptors Kazuhide Inoue 1 1Department of Molecular and System Pharmacology, Graduate School of Pharmaceutical Sciences, Kyushu University Keyword: 神経因性疼痛 , ミクログリア , ATP受容体 pp.921-928
Published Date 2006/12/10
DOI https://doi.org/10.11477/mf.1431100413
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 There is abundant evidence that extracellular ATP has an important role in pain signaling at both the periphery and in the CNS. The focus of attention now is on the possibility that ATP and its receptor system might play important roles in neuropathic pain. Neuropathic pain is often a consequence of nerve injury through surgery, bone compression, diabetes or infection. This type of pain can be so severe that even light touching can be intensely painful. Unfortunately, this state is generally resistant to currently available treatments. In this review, we summarize the role of ATP receptor P2X4 in spinal microglia in neuropathic pain. The activated microglia express P2X4 after nerve injury, which can be stimulated by endogenous ATP, resulting in the release of BDNF which is one of key molecules involving in neuropathic pain. Understanding the key roles of these ATP receptors in microglia may lead to new strategies for the management of intractable chronic pain


Copyright © 2006, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1243 印刷版ISSN 0001-8724 医学書院

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