The authors studied P-glycoprotein (P-gp) expression in three patients affected by myeloid blast crisis of chronic myeloid leukemia undergoing chemotherapy with plicamycin + hydroxyurea. P-gp is the molecular marker of multidrug resistance (MDR), and is able to promote the efflux of various drugs (including plicamycin) from the neoplastic cell. When resistance towards plicamycin and hydroxyurea association was observed, the blasts obtained from the three patients were found to express P-gp. Although P-gp may be not the unique mechanism responsible for resistance towards plicamycin and hydroxyurea association, the MDR phenotype may play an important role in the resistance towards this treatment protocol in the blast crisis of chronic myeloid leukemia.

P-glycoprotein and treatment with plicamycin + hydroxyurea in myeloid blastic crisis of chronic myeloid leukemia

CARULLI, GIOVANNI;
1989

Abstract

The authors studied P-glycoprotein (P-gp) expression in three patients affected by myeloid blast crisis of chronic myeloid leukemia undergoing chemotherapy with plicamycin + hydroxyurea. P-gp is the molecular marker of multidrug resistance (MDR), and is able to promote the efflux of various drugs (including plicamycin) from the neoplastic cell. When resistance towards plicamycin and hydroxyurea association was observed, the blasts obtained from the three patients were found to express P-gp. Although P-gp may be not the unique mechanism responsible for resistance towards plicamycin and hydroxyurea association, the MDR phenotype may play an important role in the resistance towards this treatment protocol in the blast crisis of chronic myeloid leukemia.
Carulli, Giovanni; Marini, A; Caracciolo, F.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11568/10935
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