rdf:type |
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lifeskim:mentions |
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pubmed:issue |
7-8
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pubmed:dateCreated |
2009-6-1
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pubmed:abstractText |
Valnemulin is a pleuromutilin antibiotic used in clinics for the treatment of various infections. We studied the in vitro anti-inflammatory effects of valnemulin and associated signal transduction mechanisms in lipopolysaccharide (LPS)-stimulated RAW 264.7 macrophages. We found that valnemulin inhibited nitric oxide (NO), prostaglandin E2 (PGE2), tumour necrosis factor-alpha (TNF-alpha) and interleukin-6 (IL-6), and increased interleukin-10 (IL-10) production. Inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) protein expression were also inhibited by valnemulin. We further observed that valnemulin prevented the LPS-induced NF-kappaB translocation from the cytoplasm into the nucleus. Valnemulin also blocked phosphorylation of three mitogen-activated protein kinases (MAPKs): extracellular signal receptor-activated kinase (ERK) 1/2, p38, and c-Jun N-terminal kinase (JNK). Our data indicate that valnemulin may have therapeutic anti-inflammatory effects independent of its antibacterial activity.
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pubmed:language |
eng
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pubmed:journal |
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pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Anti-Bacterial Agents,
http://linkedlifedata.com/resource/pubmed/chemical/Cyclooxygenase 2,
http://linkedlifedata.com/resource/pubmed/chemical/Cytokines,
http://linkedlifedata.com/resource/pubmed/chemical/Dinoprostone,
http://linkedlifedata.com/resource/pubmed/chemical/Diterpenes,
http://linkedlifedata.com/resource/pubmed/chemical/Extracellular Signal-Regulated MAP...,
http://linkedlifedata.com/resource/pubmed/chemical/Lipopolysaccharides,
http://linkedlifedata.com/resource/pubmed/chemical/NF-kappa B,
http://linkedlifedata.com/resource/pubmed/chemical/Nitric Oxide,
http://linkedlifedata.com/resource/pubmed/chemical/Nitric Oxide Synthase Type II,
http://linkedlifedata.com/resource/pubmed/chemical/valnemulin
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pubmed:status |
MEDLINE
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pubmed:month |
Jul
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pubmed:issn |
1878-1705
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pubmed:author |
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pubmed:issnType |
Electronic
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pubmed:volume |
9
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
810-6
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pubmed:dateRevised |
2009-11-19
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pubmed:meshHeading |
pubmed-meshheading:19293003-Animals,
pubmed-meshheading:19293003-Anti-Bacterial Agents,
pubmed-meshheading:19293003-Cell Line,
pubmed-meshheading:19293003-Cyclooxygenase 2,
pubmed-meshheading:19293003-Cytokines,
pubmed-meshheading:19293003-Dinoprostone,
pubmed-meshheading:19293003-Diterpenes,
pubmed-meshheading:19293003-Down-Regulation,
pubmed-meshheading:19293003-Extracellular Signal-Regulated MAP Kinases,
pubmed-meshheading:19293003-Lipopolysaccharides,
pubmed-meshheading:19293003-Macrophages,
pubmed-meshheading:19293003-Mice,
pubmed-meshheading:19293003-NF-kappa B,
pubmed-meshheading:19293003-Nitric Oxide,
pubmed-meshheading:19293003-Nitric Oxide Synthase Type II
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pubmed:year |
2009
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pubmed:articleTitle |
Valnemulin downregulates nitric oxide, prostaglandin E2, and cytokine production via inhibition of NF-kappaB and MAPK activity.
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pubmed:affiliation |
Institute of Zoonoses, College of Animal Science and Veterinary Medicine, Jilin University, Changchun, Jilin 130062, China.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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