Towards a receptor for nocistatin?
- PMID: 17618302
- PMCID: PMC2050824
- DOI: 10.1038/sj.bjp.0707384
Towards a receptor for nocistatin?
Abstract
Nocistatin is a peptide derived from the pronociceptin precursor, the source of nociceptin, the endogenous ligand for the nociceptin (NOP or ORL1). Despite nocistatin showing activity in a wide range of assays for nociception and other CNS activities, there is a dearth of information regarding the cellular actions of this peptide in the brain, and no receptor for nocistatin has been identified. In a study published in this issue of the British Journal of Pharmacology, Fantin and colleagues demonstrate that nocistatin inhibits 5-HT release from cortical synaptosomes in a concentration-dependent and Pertussis toxin-sensitive manner. The actions of nocistatin are independent of activity at NOP receptors. This study represents the first unambiguous demonstration of nocistatin agonist actions in brain and, taken together with previous work in the spinal cord, provides strong evidence that there is an as yet unidentified G protein-coupled receptor for nocistatin.
Comment on
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Nocistatin inhibits 5-hydroxytryptamine release in the mouse neocortex via presynaptic Gi/o protein linked pathways.Br J Pharmacol. 2007 Oct;152(4):549-55. doi: 10.1038/sj.bjp.0707377. Epub 2007 Jul 9. Br J Pharmacol. 2007. PMID: 17618307 Free PMC article.
References
-
- Ahmadi S, Kotalla C, Guhring H, Takeshima H, Pahl A, Zeilhofer HU. Modulation of synaptic transmission by nociceptin/orphanin FQ and nocistatin in the spinal cord dorsal horn of mutant mice lacking the nociceptin/orphanin FQ receptor. Mol Pharmacol. 2001;59:612–618. - PubMed
-
- Ahmadi S, Muth-Selbach U, Lauterbach A, Lipfert P, Neuhuber WL, Zeilhofer HU. Facilitation of spinal NMDA receptor currents by spillover of synaptically released glycine. Science. 2003;300:2094–2097. - PubMed
-
- Kazi JA, Liu EH, Lee TL, Tachibana S. Localization of nocistatin-binding sites in mice brain and spinal cord using a biotinylated nocistatin probe. NeuroReport. 2007;18:767–770. - PubMed
-
- Lee T-L, Fung FMY, Chen F-G, Chou N, Okuda-Ashitaka E, Ito S, et al. Identification of human, rat and mouse nocistatin in brain and human cerebrospinal fluid. NeuroReport. 1999;10:1537–1541. - PubMed
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