Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1994-1-27
pubmed:abstractText
Bacterial lipopolysaccharide and some cytokines can activate macrophages to secrete nitric oxide. Macrophage-derived nitric oxide is a key cytotoxic factor for microbicidal and tumoricidal processes. We report here that a monoclonal antibody specific for beta interferon inhibited lipopolysaccharide-induced nitric oxide production in thioglycolate-elicited C3HeB/FeJ peritoneal macrophages and macrophage-like cell line RAW 264.7. In addition, exogenous added beta interferon enabled lipopolysaccharide-hyporesponsive thioglycolate-elicited C3H/HeJ peritoneal macrophages to produce nitric oxide in response to lipopolysaccharide. These data support the concept that beta interferon provides an essential signal(s) for lipopolysaccharide-triggered nitric oxide production by mouse macrophages. Heat-killed Staphylococcus aureus, a gram-positive bacterium which was unable to initiate nitric oxide production in thioglycolate-elicited C3HeB/FeJ peritoneal macrophages in vitro, promoted nitric oxide formation in the presence of beta interferon, suggesting that beta interferon may be a general cofactor necessary for bacterium-derived stimulus-induced nitric oxide production in these macrophages. However, neither beta interferon nor tumor necrosis factor alpha, alone or in combination, triggered nitric oxide production in thioglycolate-elicited mouse peritoneal macrophages, demonstrating that these macrophage-derived cytokines, while necessary, were not sufficient by themselves for the induction of nitric oxide production in these cells. On the other hand, gamma interferon and tumor necrosis factor alpha acted together to induce nitric oxide production in vitro in the absence of lipopolysaccharide in thioglycolate-elicited mouse peritoneal macrophages, indicating that these two types of interferons provided different signals during the activation of these macrophages.
pubmed:grant
pubmed:commentsCorrections
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pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0019-9567
pubmed:author
pubmed:issnType
Print
pubmed:volume
62
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
33-40
pubmed:dateRevised
2009-11-18
pubmed:meshHeading
pubmed:year
1994
pubmed:articleTitle
Necessity and sufficiency of beta interferon for nitric oxide production in mouse peritoneal macrophages.
pubmed:affiliation
Department of Microbiology, Molecular Genetics and Immunology, University of Kansas Medical Center, Kansas City 66160.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.