Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1992-7-20
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.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0022-1899
pubmed:author
pubmed:issnType
Print
pubmed:volume
166
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
186-90
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
Secreted antigens of Mycobacterium tuberculosis: characterization with T lymphocytes from patients and contacts after two-dimensional separation.
pubmed:affiliation
Department of Immunology, University of Ulm, Germany.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't