期刊
PROSTAGLANDINS & OTHER LIPID MEDIATORS
卷 96, 期 1-4, 页码 76-83出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.prostaglandins.2011.08.001
关键词
Epoxygenated fatty acids; Nociception; Hyperalgesia; Allodynia; Arachidonic acid; Epoxyeicosatrienoic acid; CNS; Opioid; Cannabinoid
资金
- National Institute of Environmental Health Sciences (NIEHS) [R01 ES002710]
- NIEHS [P42 ES004699, T32ES007059]
The soluble epoxide hydrolase (sEH) enzyme regulates the levels of endogenous epoxygenated fatty acid (EFA) lipid metabolites by rapidly degrading these molecules. The EFAs have pleiotropic biological activities including the modulation of nociceptive signaling. Recent findings indicate that the EFAs, in particular the arachidonic acid (AA) derived epoxyeicosatrienoic acids (EETs), the docosahexaenoic acid (DHA) derived epoxydocosapentaenoic acids (EpDPEs) and eicosapentaenoic acid (EPA) derived epoxyeicosatetraenoic acids (EpETEs) are natural signaling molecules. The tight regulation of these metabolites speaks to their importance in regulating biological functions. In the past several years work on EFAs in regard to their activities in the nervous system evolved to demonstrate that these molecules are anti-inflammatory and anti-nociceptive. Here we focus on the recent advances in understanding the effects of sEH inhibition and increased EFAs on the nociceptive system and their ability to reduce pain. Evidence of their role in modulating pain signaling is given by their direct application and by inhibiting their degradation in various models of pain. Moreover, there is mounting evidence of EFAs role in the crosstalk between major nociceptive and anti-nociceptive systems which is reviewed herein. Overall the fundamental knowledge generated within the past decade indicates that orally bioavailable small molecule inhibitors of sEH may find a place in the treatment of a number of diverse painful conditions including inflammatory and neuropathic pain. (C) 2011 Elsevier Inc. All rights reserved.
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