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  • Title: Correlated analysis of cellular DNA, membrane antigens and light scatter of human lymphoid cells.
    Author: Braylan RC, Benson NA, Nourse V, Kruth HS.
    Journal: Cytometry; 1982 Mar; 2(5):337-43. PubMed ID: 6176404.
    Abstract:
    Flow cytometric correlated analysis of membrane antigens, DNA, and light scatter was performed on human lymphoid cells using fluorescein (FITC)-conjugated antibodies to label B- and T-cell antigens and propidium iodide (PI) to stain DNA after ethanol fixation and RNase treatment. A FACS II flow cytometer was modified to obtain digitized measurements of two color fluorescence and light scatter emissions, simultaneously. Software was written to allow single parameter analysis or correlated analysis of any two of the three parameters acquired. Ethanol fixation preserved FITC surface labeling for at least 15 weeks, but produced marked changes in light scatter. No changes in FITC distributions were observed after RNase treatment and PI staining, and the presence of FITC labeling did not affect DNA distributions. Within heterogeneous cell populations, the DNA distribution of cell subpopulations identified by a membrane antigen was clearly demonstrated.
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