Linked Life Data

7689615

Source:http://linkedlifedata.com/resource/pubmed/id/7689615

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1993-9-28
pubmed:abstractText
A mutant cell line (J7.DEF.3) derived from murine macrophage-like J774.1 cells, was isolated on the basis of defective specific 125I-labeled LPS-binding in the presence of serum. Although J7.DEF.3 cells still respond to LPS in inducing TNF-alpha release and nitric oxide (NO) formation, these cells nevertheless showed significantly decreased responsiveness to LPS relative to the J774.1 parent. Under serum-free conditions, no differences between J774.1 and J7.DEF.3 cells in response to LPS were observed. The time kinetics of responsiveness to LPS also showed a delay in the onset of TNF-alpha release and NO formation in the mutant cells relative to parent cells. Importantly, this decrease in responsiveness to LPS relative to parental cells was dependent on the length of the polysaccharide portion of LPS. The defect in the mutant cells has been shown to be specific for LPS, in that these cells respond to heat-killed Listeria monocytogenes and to zymosan to a similar extent as do the parental cells. Collectively these results suggest that the defect in the J7.DEF.3 mutant cells may be related to a cellular LPS-binding molecule that, in turn, may depend upon an LPS-binding serum component.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0022-1767
pubmed:author
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
151
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2742-52
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1993
pubmed:articleTitle
Isolation of a macrophage-like cell line defective in binding of lipopolysaccharide. Influence of serum and lipopolysaccharide chain length on macrophage activation.
pubmed:affiliation
Cancer Center, University of Kansas Medical Center, Kansas City 66160.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't