Functional multidrug resistance phenotype associated with combined overexpression of Pgp/MDR1 and MRP together with 1-beta-D-arabinofuranosylcytosine sensitivity may predict clinical response in acute myeloid leukemia.

Abstract excerpt

Overexpression of P-glycoprotein (Pgp) or MDR1 mRNA has been shown to be a negative prognostic factor for clinical outcome in acute myeloid leukemia (AML). However, resistance to chemotherapy also occurs in the absence of Pgp overexpression. Therefore, besides Pgp expression, we have assessed the expression of MRP, a novel drug transporter gene, along with the functional multidrug-resistant (MDR) phenotype of...

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