Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
12
pubmed:dateCreated
2008-10-15
pubmed:abstractText
The expression of CB2 cannabinoid receptors (CB2-Rs) in the brain and their neuronal function has now attracted research interest, since we and others have demonstrated the presence of CB2-Rs in neuronal and glial cells in the brain. In this study, we show the subcellular distribution of CB2-Rs in neuronal, glial, and endothelial cells in the rat hippocampus using immunohistochemical electron microscopy. Brain sections from the hippocampus were immunolabeled for CB2-R, visualized, and analyzed by electron microscopy. We found that in neurons, CB2-R immunoreactivity is present in the cell body as well as in large and medium-sized dendrites. In the soma, the CB2-R labeling is associated with the rough endoplasmic reticulum and Golgi apparatus demonstrating that CB2-Rs are synthesized by hippocampal neurons. CB2-R labeling in dendrites was observed in the cytoplasm and associated with the plasma membrane near the area of synaptic contact with axon terminals indicating a postsynaptic distribution of these receptors. In CB2-R immunoreactive glial and endothelial cells, the labeling was also found to be associated with the plasma membrane. These results provide the first ultrastructural evidence that CB2-Rs are mainly postsynaptic in the rat hippocampus.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
1098-2396
pubmed:author
pubmed:copyrightInfo
(c) 2008 Wiley-Liss, Inc.
pubmed:issnType
Electronic
pubmed:volume
62
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
944-9
pubmed:meshHeading
pubmed:year
2008
pubmed:articleTitle
Postsynaptic localization of CB2 cannabinoid receptors in the rat hippocampus.
pubmed:affiliation
Instituto de Biología Celular y Neurociencia, Facultad de Medicina, Universidad de Buenos Aires, Argentina.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't