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Diagnosis of haematological disease using anti-i. II. Distinction between acute myeloblastic and acute lymphoblastic
Leukaemic blast cells were obtained from the blood of six patients with acute lymphoblastic leukaemia (ALL) and 15 patients with acute myeloblastic leukaemia (AML). The blasts were compared with lymphocytes from normal subjects in cytotoxicity and 125I-labelled antibody binding tests using several examples of anti-i. As much i antigen was detected on ALL blasts as on normal lymphocytes; much less i antigen was detected on AML blasts. Studies of three patients with morphologically undifferentiated acute leukaemia suggest that, in tests with anti-i, blasts from such patients react either like lymphoblasts or myeloblasts despite the absence of the corresponding morphological features.
Leukaemic blast cells were obtained from the blood of six patients with acute lymphoblastic leukaemia (ALL) and 15 patients with acute myeloblastic leukaemia (AML). The blasts were compared with lymphocytes from normal subjects in cytotoxicity and 125I-labelled antibody binding tests using several examples of anti-i. As much i antigen was detected on ALL blasts as on normal lymphocytes; much less i antigen was detected on AML blasts. Studies of three patients with morphologically undifferentiated acute leukaemia suggest that, in tests with anti-i, blasts from such patients react either like lymphoblasts or myeloblasts despite the absence of the corresponding morphological features.
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