Polish journal of pathology : official journal of the Polish Society of Pathologists · 1995
The expression of multidrug resistance (MDR) molecule in acute leukemia and lymphoma.
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Pituch-Noworolska A, Gawlicka M, Balwierz W
Аннотация
Multidrug resistance (MDR) is associated with expression of P-glycoprotein in the malignant cells as the one of known mechanisms for this phenomenon. The isolated blast cells of 60 patients with acute leukemia and non-Hodgkin's lymphoma (NHL) were assayed for the expression of P-glycoprotein (P-170) with MRK16 antibody. The frequency of P-170 expression was studied in the different subtypes of leukemia and NHL based on blasts phenotype. In acute leukemia and lymphoma with B cell lineage of blast cells the percentage of P-170 positive samples was 41.3%, in the non-lymphoblastic leukemia--35.3% and the T cell lineage--75% of P-170 positive samples. The expression of P-170 molecule was associated with: 1. T cell origin of blasts, 2. lymphoma form of proliferation. The P-170 assay selects the group of patients with higher risk of drug resistance for modified therapy.