Biochemical and biological characterization of lymphocyte regulatory molecules. V. Identification of an interleukin 2-producing human leukemia T cell line.

Therefore, it is probable that the cell lines identified as negative for IL-2 production (using the concentrations oflectin indicated) do not yield negative values because of an alteration in production kinetics. The amount of IL-2 activity produced by PHA-stimulated Jurkat-FHCRC cells was quite significant especially in comparison to more conventional sources of human conditioned medium.

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