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PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
2011-5-30
pubmed:abstractText
Inflammation is an important homeostatic response, which is managed by a complex network of interrelated pathways that determine the level, intensity and localization of inflammation. We now know that purinergic signalling is one of the pathways influencing the initiation, progression and down-modulation of the inflammatory response. Here, we review recent evidence on the role in inflammation of the purinergic signalling system, which is comprised of extracellular ATP, P2 receptors and ecto-enzyme cascades. Recent animal studies with a newly developed bioluminescent ATP probe (pmeLUC), enabling measurement of pericellular ATP in situ, have provided proof that ATP is present in inflamed tissues in vivo at extracellular concentrations sufficient for P2 receptor activation. Increased extracellular ATP levels amplify inflammation in vivo by promoting leukocyte recruitment and NALP3-inflammasome activation via P2X7. Lowering extracellular ATP levels in inflamed tissues, for instance by stimulating its breakdown, inhibits the inflammatory response in vivo. In view of its important role in inflammation, the purinergic signalling system is bound to yield novel therapeutic opportunities for the treatment of inflammatory diseases.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
1945-0524
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
3
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1443-56
pubmed:meshHeading
pubmed:year
2011
pubmed:articleTitle
P2 receptors and extracellular ATP: a novel homeostatic pathway in inflammation.
pubmed:affiliation
Maastricht University, Department of Epidemiology, School for Public Health and Primary Care (CAPHRI), Maastricht, The Netherlands. M.Bours@maastrichtuniversity.nl
pubmed:publicationType
Journal Article, Review, Research Support, Non-U.S. Gov't