T-cell growth factor (Interleukin 2) and terminal transferase activity in human leukemias and lymphoblastic cell lines

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Abstract
Mononuclear blood cells from patients with different types of leukemia, and from controls as well as cells from established lymphoblastic cell lines were analyzed with respect to terminal transferase (TdT) activity and T-cell growth factor (TCGF; Interleukin 2, IL-2), to determine the significance of TCGF production and response as functional markers for human leukemias. The data obtained so far suggest that the aberrant proliferation and lack of maturation observed in these leukemias may be associated with or be the result of a break-down in cellular-mediated control of proliferation.