Source:http://linkedlifedata.com/resource/pubmed/id/10692238
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3
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pubmed:dateCreated |
2000-4-7
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pubmed:abstractText |
Neutralization of TNF or disruption of TNF-R1 leads to fatal Mycobacterium bovis BCG infection. Here we used TNF-LT-alpha-deficient mice to test whether a complete disruption of TNF and LT-alpha reduces further host resistance to BCG infection. The bacterial burden especially in the lungs of TNF-LT-alpha-deficient mice was significantly increased and the mice succumbed to infection between 8 and 10 weeks. In the absence of TNF-LT-alpha the granulomatous response was severely impaired and delayed. The cells in the granulomas of TNF-LT-alpha-deficient mice expressed low levels of MHC class II and ICAM-1. They contained a few T cells and F4/80-positive macrophages expressing little iNOS and acid phosphatase activity. By contrast, the lethal action of endotoxin was dramatically reduced in BCG-infected TNF-LT-alpha-deficient mice. In summary, in the absence of TNF-LT-alpha the recruitment and activation of mononuclear cells in response to BCG infection were significantly delayed and reduced resulting in immature granulomas allowing uncontrolled fatal infection.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Mar
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pubmed:issn |
1521-6616
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pubmed:author | |
pubmed:copyrightInfo |
Copyright 2000 Academic Press.
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pubmed:issnType |
Print
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pubmed:volume |
94
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
192-9
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:10692238-Animals,
pubmed-meshheading:10692238-Endotoxins,
pubmed-meshheading:10692238-Granuloma,
pubmed-meshheading:10692238-Hypersensitivity, Delayed,
pubmed-meshheading:10692238-Lymphotoxin-alpha,
pubmed-meshheading:10692238-Mice,
pubmed-meshheading:10692238-Mice, Inbred C57BL,
pubmed-meshheading:10692238-Mice, Mutant Strains,
pubmed-meshheading:10692238-Mycobacterium bovis,
pubmed-meshheading:10692238-Tuberculoma,
pubmed-meshheading:10692238-Tuberculosis,
pubmed-meshheading:10692238-Tuberculosis, Hepatic,
pubmed-meshheading:10692238-Tumor Necrosis Factor-alpha
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pubmed:year |
2000
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pubmed:articleTitle |
Fatal Mycobacterium bovis BCG infection in TNF-LT-alpha-deficient mice.
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pubmed:affiliation |
Department of Immunology, University of Cape Town, Cape Town, South Africa.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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