Source:http://linkedlifedata.com/resource/pubmed/id/20414744
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3
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pubmed:dateCreated |
2010-10-15
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pubmed:abstractText |
Pituitary adenylate cyclase-activating polypeptide (PACAP) is present in capsaicin-sensitive sensory neurons and inflammatory/immune cells, therefore it is suggested to play a role in neuro-immune interactions. Our aim was to investigate the role of PACAP in oxazolone-induced delayed-type hypersensitivity reaction in the skin using deficient mice (PACAP(-/-)). Sensitization was induced by 2% oxazolone application on the shaved abdomen on two consecutive days; inflammation was elicited by oxazolone smearing on the ears 6 days later. Ear thickness was measured by micrometry. Histological examination, cytokine profile [IL-2, IL-4, IL-5, and monocyte chemoattractant protein-1: MCP-1, IFN-?, tumor necrosis factor alpha (TNF-?)] and myeloperoxidase activity correlating with the number of neutrophils/macrophages were determined 24 and 48 h later. Oxazolone induced a 110-130% swelling after 24-48 h in wild-type mice, which was significantly greater in PACAP-deficient mice. Histological analysis confirmed markedly increased edema in PACAP(-/-) mice, but the moderately enhanced inflammatory cell accumulation was not statistically significant compared with the wild-types. There was no difference in myeloperoxidase activity of the ear homogenates. Elevation of MCP-1, but not the levels of the other cytokines, was significantly higher in the samples of the PACAP-deficient mice. These results suggest that PACAP exerts anti-inflammatory, particularly edema-inhibiting effects in allergic contact dermatitis.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Nov
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pubmed:issn |
1559-1166
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pubmed:author | |
pubmed:issnType |
Electronic
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pubmed:volume |
42
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
443-9
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pubmed:meshHeading |
pubmed-meshheading:20414744-Animals,
pubmed-meshheading:20414744-Dermatitis, Allergic Contact,
pubmed-meshheading:20414744-Mice,
pubmed-meshheading:20414744-Mice, Knockout,
pubmed-meshheading:20414744-Oxazolone,
pubmed-meshheading:20414744-Pituitary Adenylate Cyclase-Activating Polypeptide,
pubmed-meshheading:20414744-Skin
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pubmed:year |
2010
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pubmed:articleTitle |
Pituitary adenylate cyclase-activating polypeptide deficiency enhances oxazolone-induced allergic contact dermatitis in mice.
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pubmed:affiliation |
Department of Pharmacology and Pharmacotherapy, University of Pécs, Pécs, Hungary.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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