Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2007-3-12
pubmed:abstractText
Peripheral inflammation induces reactions within the CNS such as central sensitization, which is involved in the mechanism of inflammatory hyperalgesia. However, the precise mechanism of inflammatory signal transmission from the peripheral inflammatory site to the CNS is not clear. We studied the role of circulating interleukin (IL)-6 as a messenger of inflammatory information from the periphery to the CNS. In the rat model of inflammatory hyperalgesia induced by carrageenan, levels of IL-6 but not IL-1beta or tumor necrosis factor alpha (TNFalpha) were significantly elevated in the circulating blood 3 h after an injection of carrageenan. In addition, injecting carrageenan into the hind paw evoked thermal hyperalgesia and the release of prostaglandin E(2) (PGE(2)) from isolated blood vessels of the CNS ex vivo, as well as the induction of cyclooxygenase (COX)-2 and microsomal prostaglandin E synthase (mPGES)-1 and nuclear translocation of signal transducer and activator of transcription 3 (STAT3) in vascular endothelial cells of the CNS. A prior i.p. injection of IL-6 antiserum (IL-6AS) abolished or attenuated these responses. The present results suggested that circulating IL-6 could act as a messenger of inflammatory information from peripheral inflammatory sites to the CNS and as the afferent circulating signal to the CNS to produce prostaglandins in the vascular endothelial cells of the CNS through a COX-2 dependent pathway.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0306-4522
pubmed:author
pubmed:issnType
Print
pubmed:day
16
pubmed:volume
145
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
530-8
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed-meshheading:17303338-Afferent Pathways, pubmed-meshheading:17303338-Animals, pubmed-meshheading:17303338-Antibodies, pubmed-meshheading:17303338-Central Nervous System, pubmed-meshheading:17303338-Cyclooxygenase 2, pubmed-meshheading:17303338-Dinoprostone, pubmed-meshheading:17303338-Endothelial Cells, pubmed-meshheading:17303338-Foot, pubmed-meshheading:17303338-Hyperalgesia, pubmed-meshheading:17303338-Inflammation, pubmed-meshheading:17303338-Inflammation Mediators, pubmed-meshheading:17303338-Interleukin-6, pubmed-meshheading:17303338-Male, pubmed-meshheading:17303338-Peripheral Nerves, pubmed-meshheading:17303338-Prostaglandin-Endoperoxide Synthases, pubmed-meshheading:17303338-Rats, pubmed-meshheading:17303338-Rats, Sprague-Dawley, pubmed-meshheading:17303338-STAT3 Transcription Factor, pubmed-meshheading:17303338-Sensory Receptor Cells, pubmed-meshheading:17303338-Signal Transduction, pubmed-meshheading:17303338-Up-Regulation
pubmed:year
2007
pubmed:articleTitle
Interleukin-6 is a candidate molecule that transmits inflammatory information to the CNS.
pubmed:affiliation
Department of Anesthesiology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kamigyo-ku, Kyoto 602-8566, Japan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't