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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2011-1-10
pubmed:abstractText
In dorsal root ganglion sections numerous small-to medium-sized neurons were found to exhibit extensive colocalization of the bradykinin receptor 2, the interleukin-1 receptor 1 and G protein-coupled receptor kinase 2. Application of bradykinin to cultured DRG neurons caused substantial internalization of the bradykinin 2 receptor which significantly reduced the responsiveness of DRG neurons to a second application of bradykinin. Such an internalization was not observed in DRG neurons which were exposed to long-term pretreatment with interleukin-1?. The long-term incubation with interleukin-1? on its own did neither change the proportion of neurons which expressed the bradykinin 2 receptor in the cytoplasma nor the proportion of neurons expressing the bradykinin 2 receptor in the membrane but it reduced the proportion of neurons expressing G protein-coupled receptor kinase 2, an enzyme which facilitates the internalization of G protein-coupled receptors. These results show that interleukin-1? maintains the responsiveness of DRG neurons to bradykinin in the long-term range, and they suggest that the downregulation of G protein-coupled receptor kinase 2 could be a cellular mechanism involved in this interleukin-1? effect.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
1095-9327
pubmed:author
pubmed:copyrightInfo
Copyright © 2010 Elsevier Inc. All rights reserved.
pubmed:issnType
Electronic
pubmed:volume
46
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
262-71
pubmed:meshHeading
pubmed:year
2011
pubmed:articleTitle
Molecular effects of interleukin-1? on dorsal root ganglion neurons: prevention of ligand-induced internalization of the bradykinin 2 receptor and downregulation of G protein-coupled receptor kinase 2.
pubmed:affiliation
Jena University Hospital - Friedrich Schiller University Jena, Institute of Physiology ?, Teichgraben 8, D-07743 Jena, Germany. gban@mti.uni-jena.de
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't