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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3
|
pubmed:dateCreated |
1990-9-12
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pubmed:abstractText |
Naturally-occurring Streptococcus suis type 2 meningitis affects pigs and man; experimental models of the disease have also been established in pigs and mice. A sustained, high-level bacteraemia is an important phase preceding the development of S. suis type 2 meningitis. The main cellular clearance mechanism for circulating bacteria is the resident hepatic and splenic macrophages. The interaction between various isolates of S. suis type 2 and murine macrophages was investigated to determine whether there were differences in the outcome of the interaction that would reflect observed differences in pathogenicity. Phagocytosed non-pathogenic isolates were killed whereas intracellular pathogenic organisms survived and replicated within phagosomes in the absence of anti-S. suis type 2 antibody and complement. The addition of anti-S. suis type 2 antibody and complement to macrophages containing ingested pathogenic organisms resulted in inactivation of the intracellular bacteria. Thus whilst the pathogenicity of S. suis type 2 isolates may be related to an ability to survive within macrophages, immunity to S. suis type 2 meningitis may result from anti-S. suis type 2 antibody preventing pathogenic organisms surviving within macrophages.
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pubmed:language |
eng
|
pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
|
pubmed:month |
Mar
|
pubmed:issn |
0882-4010
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pubmed:author | |
pubmed:issnType |
Print
|
pubmed:volume |
8
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
189-96
|
pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:2199755-Acridine Orange,
pubmed-meshheading:2199755-Animals,
pubmed-meshheading:2199755-Antibodies, Bacterial,
pubmed-meshheading:2199755-Cell Survival,
pubmed-meshheading:2199755-Colony Count, Microbial,
pubmed-meshheading:2199755-Humans,
pubmed-meshheading:2199755-Immune Sera,
pubmed-meshheading:2199755-Macrophages,
pubmed-meshheading:2199755-Meningitis,
pubmed-meshheading:2199755-Peritoneal Cavity,
pubmed-meshheading:2199755-Phagocytosis,
pubmed-meshheading:2199755-Rabbits,
pubmed-meshheading:2199755-Sensitivity and Specificity,
pubmed-meshheading:2199755-Streptococcus,
pubmed-meshheading:2199755-Swine
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pubmed:year |
1990
|
pubmed:articleTitle |
Relationship between intracellular survival in macrophages and pathogenicity of Streptococcus suis type 2 isolates.
|
pubmed:affiliation |
Department of Clinical Veterinary Medicine, University of Cambridge, U.K.
|
pubmed:publicationType |
Journal Article,
In Vitro,
Research Support, Non-U.S. Gov't
|