Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2007-8-16
pubmed:abstractText
Heat and cold hyperalgesia is a common feature of inflammatory pain. To investigate whether activation of extracellular signal-regulated protein kinase 5 (ERK5), also known as big mitogen-activated protein kinase 1, in primary sensory neurons participates in inflammatory pain, we examined the phosphorylation of ERK5 in the dorsal root ganglion (DRG) after peripheral inflammation. Inflammation induced by complete Freund's adjuvant produced heat and cold hyperalgesia on the ipsilateral hind paw and induced an increase in the phosphorylation of ERK5, mainly in tyrosine kinase A-expressing small- and medium-size neurons. In contrast, there was no change in ERK5 phosphorylation in the spinal dorsal horn. ERK5 antisense, but not mismatch, oligodeoxynucleotide decreased the activation of ERK5 and suppressed inflammation-induced heat and cold hyperalgesia. Furthermore, the inhibition of ERK5 blocked the induction of transient receptor potential channel TRPV1 and TRPA1 expression in DRG neurons after peripheral inflammation. Our results show that ERK5 activated in DRG neurons contribute to the development of inflammatory pain. Thus, blocking ERK5 signaling in sensory neurons that has the potential for preventing pain after inflammation.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0022-3042
pubmed:author
pubmed:issnType
Print
pubmed:volume
102
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1614-24
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed-meshheading:17573825-Animals, pubmed-meshheading:17573825-Behavior, Animal, pubmed-meshheading:17573825-Enzyme Activation, pubmed-meshheading:17573825-Freund's Adjuvant, pubmed-meshheading:17573825-Ganglia, Spinal, pubmed-meshheading:17573825-Hyperalgesia, pubmed-meshheading:17573825-Inflammation, pubmed-meshheading:17573825-Male, pubmed-meshheading:17573825-Mitogen-Activated Protein Kinase 7, pubmed-meshheading:17573825-Neurofilament Proteins, pubmed-meshheading:17573825-Neurons, Afferent, pubmed-meshheading:17573825-Oligonucleotides, Antisense, pubmed-meshheading:17573825-Pain Measurement, pubmed-meshheading:17573825-Rats, pubmed-meshheading:17573825-Rats, Sprague-Dawley, pubmed-meshheading:17573825-Receptor, trkA, pubmed-meshheading:17573825-TRPV Cation Channels, pubmed-meshheading:17573825-Time Factors
pubmed:year
2007
pubmed:articleTitle
Activation of extracellular signal-regulated protein kinases 5 in primary afferent neurons contributes to heat and cold hyperalgesia after inflammation.
pubmed:affiliation
Department of Anatomy and Neuroscience, Hyogo College of Medicine, Mukogawa-cho, Nishinomiya, Hyogo, Japan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't