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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:dateCreated |
1983-8-26
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pubmed:abstractText |
Does LPS activate lymphocytes by binding to a specific cell-surface receptor or by nonspecific hydrophobic interaction with the plasma membrane? We examined this question by detecting cell-bound LPS using immunofluorescence microscopy and radiobinding techniques. LPS binding to splenic lymphocytes from C3H/St mice has characteristics of specific binding: saturability with respect to dose and time, selectivity for a subclass of B-cells, and a correlation between binding and mitogenesis. 125I-labeled LPS bound to cells and analyzed quantitatively by SDS-PAGE separated into 3 major components: peaks 1, 2, and 3 (1 equals the fastest moving). Lymphocytes preferentially bound peak 1, murine RBC peaks 1 and 2, and macrophages peak 2. In contrast, specific antibody preferred peaks 2 and 3. Differential staining of gels suggested that peak 3 is carbohydrate-rich and peak 1 is lipid-rich. LPS was released from these cells at different rates. We conclude that selectivity of LPS binding may be reflected in preferential binding of LPS subunits of different size and/or composition, as well as differential retention of bound LPS.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Antigens, Bacterial,
http://linkedlifedata.com/resource/pubmed/chemical/Epitopes,
http://linkedlifedata.com/resource/pubmed/chemical/Lipopolysaccharides,
http://linkedlifedata.com/resource/pubmed/chemical/O Antigens,
http://linkedlifedata.com/resource/pubmed/chemical/Receptors, Antigen, B-Cell
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pubmed:status |
MEDLINE
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pubmed:month |
Jun
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pubmed:issn |
0077-8923
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
30
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pubmed:volume |
409
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
72-81
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:6191617-Animals,
pubmed-meshheading:6191617-Antigens, Bacterial,
pubmed-meshheading:6191617-B-Lymphocytes,
pubmed-meshheading:6191617-Binding Sites,
pubmed-meshheading:6191617-Electrophoresis, Polyacrylamide Gel,
pubmed-meshheading:6191617-Epitopes,
pubmed-meshheading:6191617-Escherichia coli,
pubmed-meshheading:6191617-Fluorescent Antibody Technique,
pubmed-meshheading:6191617-Lipopolysaccharides,
pubmed-meshheading:6191617-Mice,
pubmed-meshheading:6191617-Mice, Inbred C3H,
pubmed-meshheading:6191617-O Antigens,
pubmed-meshheading:6191617-Radioligand Assay,
pubmed-meshheading:6191617-Receptors, Antigen, B-Cell
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pubmed:year |
1983
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pubmed:articleTitle |
Binding of bacterial lipopolysaccharide to murine lymphocytes.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Review
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