Linked Life Data

2443047

Source:http://linkedlifedata.com/resource/pubmed/id/2443047

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1987-10-13
pubmed:abstractText
Patients with tuberculous pleural effusions may show cutaneous anergy to tuberculin purified-protein derivative (PPD). This phenomenon has been attributed either to preferential sequestration of antigen-specific T-lymphocytes to the pleural space or to the presence of suppressor monocytes in the blood. In 2 patients with primary tuberculous infection involving the pleura and with skin anergy to PPD, the in vitro proliferation of pleural and peripheral blood T-cells to PPD was evaluated. Although peripheral blood T-cells were not reactive, pleural T-cells showed a marked proliferative response to PPD. At least in the first patient, the lack of proliferation of circulating T-cells could not be related to the presence of suppressor monocytes. Interestingly, after 4 to 8 wk of specific chemotherapy, PPD skin test became positive and the blood T-lymphocytes responded in vitro to the same antigen. Pleural T-lymphocytes were used to generate long-term, PPD-specific T-cell lines and could be maintained in vitro for more than 3 months with repeated cycles of stimulation. The pleural and the blood T-lymphocytes and the T-cell lines were also characterized phenotypically: although the majority of the T-lymphocytes present in the pleural space after Mycobacterium tuberculosis infection were Leu-3-positive (helper T-cells), T-cell lines proliferating in response to PPD included high numbers of Leu-2-positive cells (suppressor/cytotoxic T-cells). These data suggest that early skin anergy in tuberculous pleurisy may be associated with sequestration of PPD-reactive T-lymphocytes in the pleural spaces involving both Leu-2-and Leu-3-positive T-cells.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0003-0805
pubmed:author
pubmed:issnType
Print
pubmed:volume
136
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
575-9
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1987
pubmed:articleTitle
Tuberculous pleural effusions. Evidence for selective presence of PPD-specific T-lymphocytes at site of inflammation in the early phase of the infection.
pubmed:publicationType
Journal Article, Case Reports, Research Support, Non-U.S. Gov't