Human B cell, T cell and null cell leukaemic cell lines derived from acute lymphoblastic leukaemias

CONTINUOUS culture of human leukaemic cells is still a difficult task, although several leukaemic cell lines have been derived from patients with acute and chronic myelogenous leukaemia1,2 and acute lymphoblastic leukaemia (ALL) (refs 3–6). We describe here B-cell, T-cell and null-cell leukaemic cell lines newly established from three patients with ALL.