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[Acute lymphoblastic leukemia in children. The use of antisera specific for lymphocyte populations in a
Mononuclear cells from 14 children with acute lymphoblastic leukaemia (ALL) were studied using several lymphocyte membrane markers: E-rosettes, "active" E-rosettes, surface immunoglobulins, EA-rosettes. The use of these techniques and of three specific heterologous antisera directed against T and B cell antigens enabled the discrimination of three different ALL types according to the stage of cell maturation at which it is likely that neoplastic differention occured: T-cell ALL, pre-thymic cell ALL, and "non-T non-B" cell ALL showing only HLA-DR antigens.
Mononuclear cells from 14 children with acute lymphoblastic leukaemia (ALL) were studied using several lymphocyte membrane markers: E-rosettes, "active" E-rosettes, surface immunoglobulins, EA-rosettes. The use of these techniques and of three specific heterologous antisera directed against T and B cell antigens enabled the discrimination of three different ALL types according to the stage of cell maturation at which it is likely that neoplastic differention occured: T-cell ALL, pre-thymic cell ALL, and "non-T non-B" cell ALL showing only HLA-DR antigens.