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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4 Pt 2
pubmed:dateCreated
1986-4-23
pubmed:abstractText
In vitro maturation was induced with 12-O-tetradecanoylphorbol-13-acetate in leukemic cell samples from patients with chronic lymphocytic leukemia (n = 10) and prolymphocytic leukemia (n = 4). The cells were studied for morphology, for immunological markers using the fluorescence activated cell sorter, and for acid phosphatase isoenzymes using both cytochemistry and isoelectrofocusing. Morphologically the induced changes included appearance of cells with an excentric nucleus and basophilic cytoplasm and eventually of cells with many fine cytoplasmic projections ("hairs"). Analysis of immunological markers by flow cytometry revealed that the monoclonal antibody defined cell surface molecule HD6 (CD22), which is strongly expressed on hairy cell leukemia (HCL) but absent from plasmacytoma and plasma cells, can be induced or enhanced in the leukemic samples. In the study of acid phosphatase isoenzymes using cytochemistry we observed the induction of the tartrate resistant isoenzyme. Further, using isoelectrofocusing we could demonstrate the induction of the same band of tartrate resistant acid phosphatase with an isoelectric point of 9.0-9.7 as detected also in HCL. This particular isoenzyme is considered characteristic of HCL but is absent in plasmacytoma. Our data demonstrate that chronic lymphocytic leukemia and prolymphocytic leukemia cells can be induced to realize a common genetic program which bears characteristics of HCL, indicating that these three entities are much more closely related than previously thought.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0008-5472
pubmed:author
pubmed:issnType
Print
pubmed:volume
46
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2172-8
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1986
pubmed:articleTitle
Induction of features characteristic of hairy cell leukemia in chronic lymphocytic leukemia and prolymphocytic leukemia cells.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't