Abstract
The study consists of 6 CLL patients with leukemic blood lymphocytes lacking T-cell characteristics and with smIg on only a very small fraction of the cells detected by microscopy or FACS analysis after direct immunofluorescence (IFL) staining. Using B-cell specific monoclonal antibodies all leukemias were found to be of the B-cell type. SmIg, mainly of IgD-class and the monotypic light chain, was detected on a large number of cells in all cases when using direct IFL. No lymphocyte clone was judged to be of the pre-B-cell type or represented fully differentiated terminal B-cells. CLL cells from the individual cases probably represent intermediate B-cell maturation steps. The results lend no support to the suggestion that this subtype of CLL necessarily belongs to an early stage of differentiation just beyond the pre-B-cell level.
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Kimby, E., Axelsson, B., Björkholm, M. et al. Characterization of chronic lymphocytic leukemia (CLL) cells with low density of surface membrane bound immunoglobulins (smIg). Med. Oncol. & Tumor Pharmacother. 2, 261–267 (1985). https://doi.org/10.1007/BF02934912
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DOI: https://doi.org/10.1007/BF02934912