Document Detail


Lipopolysaccharide-stimulated interleukin-10 release from neonatal spinal cord microglia is potentiated by glutamate.
MedLine Citation:
PMID:  21081156     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Interleukin-10 (IL-10) is a cytokine with important endogenous and therapeutic anti-inflammatory effects. Given this, it is of interest to investigate factors that modulate IL-10 levels in the central nervous system. IL-10 is released after lipopolysaccharide (LPS) stimulation of microglia. Microglia also express functional glutamate receptors and in inflammatory conditions are exposed to increased levels of glutamate. The aim of this research, then, is to investigate whether glutamate can modulate lipopolysaccharide stimulation of IL-10 release from neonatal rat spinal cord microglia. Enzyme-linked immunosorbent assays (ELISAs) were used to quantify IL-10 release from cultured neonatal spinal cord microglia and reverse transcriptase-polymerase chain reaction (RT-PCR) was used to measure IL-10 mRNA expression. Glutamate (1 mM) significantly increased LPS (1 μg/ml)-stimulated IL-10 release from microglia by 172% (EC(50) of 103 μM) and significantly upregulated IL-10 mRNA levels. Glutamate potentiated LPS-stimulated IL-10 release by binding all subtypes of glutamate receptor. These results show that glutamate substantially increases the release of an anti-inflammatory cytokine from neonatal spinal cord microglia activated by a high concentration of LPS.
Authors:
E L Werry; G J Liu; M D Lovelace; R Nagarajah; I B Hickie; M R Bennett
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Publication Detail:
Type:  Journal Article     Date:  2010-11-21
Journal Detail:
Title:  Neuroscience     Volume:  175     ISSN:  1873-7544     ISO Abbreviation:  Neuroscience     Publication Date:  2011 Feb 
Date Detail:
Created Date:  2011-01-26     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7605074     Medline TA:  Neuroscience     Country:  United States    
Other Details:
Languages:  eng     Pagination:  93-103     Citation Subset:  IM    
Copyright Information:
Copyright © 2011 IBRO. Published by Elsevier Ltd. All rights reserved.
Affiliation:
Brain and Mind Research Institute and Bosch Institute, The University of Sydney, NSW, 2006, Australia.
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