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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1997-8-18
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pubmed:abstractText |
We investigated the contributions of lipoteichoic acid and M protein to reversible and irreversible adhesion of group A streptococci and the effects of such adhesion on release of interleukin-6. Streptococci in which lipoteichoic acid was masked by the hyaluronate capsule were readily washed from HEp-2 cells, indicating no attachment. Unencapsulated, M-negative streptococci in which lipoteichoic acid was exposed were removed more slowly, indicating loose attachment. Only unencapsulated streptococci that expressed both lipoteichoic acid and M protein remained stably adherent to HEp-2 cells throughout multiple washes. Streptococci expressing both M protein and lipoteichoic acid induced release of interleukin-6 from HEp-2 cells, whereas an isogenic, M-negative mutant failed to induce release of interleukin-6. These data suggest that lipoteichoic acid mediates reversible adhesion and that M protein is required for irreversible adhesion and for inducing release of interleukin-6 from HEp-2 cells.
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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/Bacterial Outer Membrane Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/Bacterial Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/Carrier Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/Interleukin-6,
http://linkedlifedata.com/resource/pubmed/chemical/streptococcal M protein
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pubmed:status |
MEDLINE
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pubmed:month |
Jun
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pubmed:issn |
0378-1097
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
1
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pubmed:volume |
151
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
65-70
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:9198283-Antigens, Bacterial,
pubmed-meshheading:9198283-Bacterial Adhesion,
pubmed-meshheading:9198283-Bacterial Outer Membrane Proteins,
pubmed-meshheading:9198283-Bacterial Proteins,
pubmed-meshheading:9198283-Carrier Proteins,
pubmed-meshheading:9198283-Cell Survival,
pubmed-meshheading:9198283-Cells, Cultured,
pubmed-meshheading:9198283-Enzyme-Linked Immunosorbent Assay,
pubmed-meshheading:9198283-Interleukin-6,
pubmed-meshheading:9198283-Liver,
pubmed-meshheading:9198283-Mutation,
pubmed-meshheading:9198283-Streptococcus pyogenes,
pubmed-meshheading:9198283-Time Factors
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pubmed:year |
1997
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pubmed:articleTitle |
M protein mediated adhesion of M type 24 Streptococcus pyogenes stimulates release of interleukin-6 by HEp-2 tissue culture cells.
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pubmed:affiliation |
Veterans Affairs Medical Center, University of Tennessee, Memphis, USA. hcourtney@utmem1.utmem.edu
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, Non-P.H.S.
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