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Cytometry. 1990;11(5):610-6.

Flow cytometric assay for the measurement of human bone marrow phenotype, function and cell cycle.

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Department of Pathology, Gade Institute, Bergen, Norway.


A flow cytometric assay for the measurement of human bone marrow and blood leukocyte antigen expression, phagocytosis, and proliferation is described. Subpopulations of leukocytes were identified by their light scatter characteristics, and the expression of a myeloid differentiation antigen (designated CDw65) determined following incubation with CDw65 specific fluorescein-isothiocyanate (FITC) conjugated monoclonal antibodies (VIM2). Incubation of leukocytes with ethidium monoazide (EMA) labeled Candida albicans followed by staining with FITC conjugated VIM2 allowed the combined determination of cellular CDw65 expression and phagocytic capacity. In addition, immunostained leukocytes were fixed, and their DNA labeled with propidium iodide (PI), before CDw65 expression was measured for cells in different phases of the cell cycle. The method allows evaluation of phenotypic and functional heterogeneity, as well as cell cycle parameters, within subpopulations of cells during hematopoietic differentiation.

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