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  • Title: Leukemic cell differentiation in childhood leukemias. Analysis by enzyme markers.
    Author: Gaedicke G, Drexler HG.
    Journal: Eur J Pediatr; 1984 Aug; 142(3):157-64. PubMed ID: 6236088.
    Abstract:
    Enzyme marker analysis has become a valuable tool in leukemia research, especially as a part of the so-called multiple marker analysis which combines several disciplines for characterization of leukemia cells. In this study the qualitative activities of three enzyme markers were determined in leukemic cells from pediatric patients with acute leukemias: acid phosphatase (E.C. 3.1.3.2), carboxylic esterase (E.C. 3.1.1.1) and hexosaminidase (E.C. 3.2.1.30). The leukemia subtypes displayed different types of isoenzyme patterns. No additional isoenzyme was found that was not observed in normal blood cells, nor a single isoenzyme specific for a leukemia subtype. The biochemical profiles illustrated the existence of subsets in cALL, T-ALL and AML. The enzymologic polymorphism and the immunologic heterogeneity seen in leukemia subclasses have led together to an extended classification scheme of leukemias as well as to model schemes of normal hematopoietic cell differentiation. Despite former and constantly published assumptions there are still no specific markers of leukemia cells.
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