[Heterogeneity of a peripheral blood lymphocyte population stimulated by phytohemagglutinin]

Lymphocytes of human peripheral blood treated with PHA in short-living cultures can be divided into two subpopulations of cells according to their capacity to bind acridine orange. Cells of the first subpopulation are similar to unincubated ones, whereas the second subpopulation contains cells with higher dye-binding properties.