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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
6
|
pubmed:dateCreated |
1983-3-24
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pubmed:abstractText |
The functional capacity of T lymphocytes from 28 cases of chronic T-cell leukaemia--T-CLL, T-PLL, T-LCL and Sézary syndrome--was evaluated in a T-colony forming system and in a PHA response assay. Reduced or absent T-colony growth was observed in 23 cases (82%) while in five the growth was normal. Although a good correlation was generally observed between colony formation and PHA transformation, in a few cases a low PHA response was accompanied by moderate colony growth and vice versa. Characterization of the leukaemic T lymphocytes using monoclonal antibodies (OKT series) indicates that cases with a helper/inducer phenotype (OKT4+) showed moderately reduced or near-normal T-colony numbers, whilst cases with a suppressor/cytotoxic phenotype (OKT8+)--confined to T-CLL in this study--had a very low or absent colony growth. The functional abnormalities reported here suggest that neoplastic T-cells with a helper/inducer phenotype show a low proliferative response in the assay systems used, although expressing mature T-cell characteristics. The low growth observed in T-CLL confirms that cells with a suppressor/cytotoxic phenotype form few T-cell colonies.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:issn |
0145-2126
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pubmed:author | |
pubmed:issnType |
Print
|
pubmed:volume |
6
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pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
809-14
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pubmed:dateRevised |
2007-11-15
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pubmed:meshHeading |
pubmed-meshheading:6984114-Cell Division,
pubmed-meshheading:6984114-Hematopoietic Stem Cells,
pubmed-meshheading:6984114-Humans,
pubmed-meshheading:6984114-Leukemia, Lymphoid,
pubmed-meshheading:6984114-Phenotype,
pubmed-meshheading:6984114-Phytohemagglutinins,
pubmed-meshheading:6984114-T-Lymphocytes
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pubmed:year |
1982
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pubmed:articleTitle |
Chronic T-cell leukaemias. III. T-colonies, PHA response and correlation with membrane phenotype.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
|