期刊
CURRENT OPINION IN PHARMACOLOGY
卷 12, 期 1, 页码 62-66出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.coph.2011.10.023
关键词
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资金
- Italian Ministry of University and Scientific Research
- Sapienza University of Rome
Mammalian Bv8 (also called prokineticin 2) is a secreted protein that regulates diverse biological processes including pain perception. It belongs to a new family of chemokines, which activate two G-protein linked receptors (prokineticin receptor 1 and 2, PKR1 and PKR2) expressed in regions of the nervous system associated with pain and in cells participating to immuno-inflammatory responses. Primary sensitive neurons co-express PKRs and the transient potential receptor vanilloid 1, cooperating in nociceptor sensitization. Bv8, strongly upregulated in neutrophils and other inflammatory cells, is a main pronociceptive mediator in inflamed tissues, where it sensitizes peripheral nociceptors, stimulates neutrophil chemotaxis and modulates the release of inflammatory and pronociceptive cytokines. Availability of a nonpeptide PKR antagonist, leading to blockade of the Bv8/PKR system, ameliorates pain arising from tissue injury and reduces the time required for recovery from injury.
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