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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1992-7-20
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pubmed:abstractText |
Little is known about T cell antigens involved in immunity against Mycobacterium tuberculosis. Most model systems use in vitro culture of human T lymphocytes with bacterial lysates or secreted proteins as antigens. In this study, proteins from 3-week-old M. tuberculosis culture filtrates were separated by two-dimensional PAGE and subsequently transferred into soluble phase. The resulting 480 fractions were screened with T lymphocytes from tuberculosis patients and healthy contacts. T cells from all 9 patients and from 8 of 10 tuberculin-positive contacts preferentially responded to a cluster of acidic proteins (pI 4-5) with molecular masses of 30-100 kDa, although they also recognized a number of other fractions. In contrast, of 7 tuberculin-negative contacts, 4 were not and 3 were only weakly stimulated by this cluster region. Therefore, this distinct cluster of secreted proteins seems to comprise dominant T cell antigens of M. tuberculosis.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
AIM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Jul
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pubmed:issn |
0022-1899
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
166
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
186-90
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:1607694-Antigens, Bacterial,
pubmed-meshheading:1607694-Cells, Cultured,
pubmed-meshheading:1607694-Electrophoresis, Gel, Two-Dimensional,
pubmed-meshheading:1607694-Humans,
pubmed-meshheading:1607694-Immunoblotting,
pubmed-meshheading:1607694-Interleukin-2,
pubmed-meshheading:1607694-Isoelectric Focusing,
pubmed-meshheading:1607694-Mycobacterium tuberculosis,
pubmed-meshheading:1607694-Recombinant Proteins,
pubmed-meshheading:1607694-T-Lymphocytes,
pubmed-meshheading:1607694-Tuberculin Test
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pubmed:year |
1992
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pubmed:articleTitle |
Secreted antigens of Mycobacterium tuberculosis: characterization with T lymphocytes from patients and contacts after two-dimensional separation.
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pubmed:affiliation |
Department of Immunology, University of Ulm, Germany.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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