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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
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pubmed:dateCreated |
1992-5-18
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pubmed:abstractText |
Striking numerical and structural chromosome abnormalities (-Y, +8, i(7q), del (10)(q24), and del (11)(q21)) were detected by cytogenetic analysis in a patient's bone marrow with morphological features of both acute lymphoblastic leukemia and myelodysplastic disorder. Surface marker analysis characterized blast cells to be CD2+ CD7+ CD3+ CD4- CD8- expressing gamma/delta-T-cell receptor antigen and coexpressing CD11b and CD16. Exhibiting an identical phenotype as the leukemic cells, a prominent gamma/delta-TCR+ lymphocyte population was found in the bone marrow as well as in the peripheral blood. Cells of the latter compartment coexpressed CD56 and HLA-DR antigens and exhibited nonspecific cytotoxic activity. In the bone marrow cells NSCA could be induced after stimulation with interleukin 2 in vitro. Morphological, immunological, and cytogenetic findings suggest that gamma/delta-T-ALL emerged from a myelodysplastic disorder after sequential steps of malignant transformation. Leukemic cells with "mixed lineage" character may provide evidence for a common progenitor cell in the bone marrow. Assuming that the leukemic cells represent the malignant counterpart of normal CD3+ gamma/delta-TCR+ cells the results may contribute to our understanding of the origin and differentiation as well as the possible steps of malignant transformation of a gamma/delta-TCR+ lymphocyte population.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
|
pubmed:issn |
0145-2126
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pubmed:author | |
pubmed:issnType |
Print
|
pubmed:volume |
16
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
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pubmed:pagination |
379-84
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pubmed:dateRevised |
2007-11-15
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pubmed:meshHeading |
pubmed-meshheading:1373459-Anemia, Sideroblastic,
pubmed-meshheading:1373459-Antigens, CD,
pubmed-meshheading:1373459-Antigens, CD56,
pubmed-meshheading:1373459-Antigens, Differentiation, T-Lymphocyte,
pubmed-meshheading:1373459-Bone Marrow,
pubmed-meshheading:1373459-Cell Transformation, Neoplastic,
pubmed-meshheading:1373459-Chromosome Aberrations,
pubmed-meshheading:1373459-Humans,
pubmed-meshheading:1373459-Immunophenotyping,
pubmed-meshheading:1373459-Killer Cells, Natural,
pubmed-meshheading:1373459-Male,
pubmed-meshheading:1373459-Middle Aged,
pubmed-meshheading:1373459-Precursor Cell Lymphoblastic Leukemia-Lymphoma,
pubmed-meshheading:1373459-Receptors, Antigen, T-Cell, gamma-delta
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pubmed:year |
1992
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pubmed:articleTitle |
T-cell receptor gamma/delta expressing acute leukemia emerging from sideroblastic anemia: morphological, immunological, and cytogenetic features.
|
pubmed:affiliation |
Department of Internal Medicine, Heinrich-Heine University, Düsseldorf, Germany.
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pubmed:publicationType |
Journal Article,
Case Reports
|