Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
7-8
pubmed:dateCreated
2009-6-1
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.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
1878-1705
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
9
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
810-6
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
Valnemulin downregulates nitric oxide, prostaglandin E2, and cytokine production via inhibition of NF-kappaB and MAPK activity.
pubmed:affiliation
Institute of Zoonoses, College of Animal Science and Veterinary Medicine, Jilin University, Changchun, Jilin 130062, China.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't