Fludarabine-based induction therapy does not overcome the negative effect of ABCG2 (BCRP) over-expression in adult acute myeloid leukemia patients

Leuk Res. 2010 Jul;34(7):942-5. doi: 10.1016/j.leukres.2010.01.008. Epub 2010 Jan 31.

Abstract

Over-expression of multidrug resistance (MDR) proteins PGP and BCRP has a negative prognostic impact in acute myeloid leukemia (AML) patients. Inclusion of fludarabine in induction chemotherapy increases remission rate in PGP over-expressing cases. We investigated the role of BCRP in 138 adult AML patients receiving induction therapy with fludarabine. None of the MDR-related proteins influenced complete remission attainment. Conversely, high levels of BCRP significantly affected disease-free survival, as higher relapse rates (48.5% vs 28.5%) and earlier relapse occurred in BCRP+ patients. Also overall survival was affected by BCRP positivity, and survival significantly worsened in case of concomitant PGP and BCRP over-expression.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • ATP Binding Cassette Transporter, Subfamily B, Member 1 / physiology
  • ATP Binding Cassette Transporter, Subfamily G, Member 2
  • ATP-Binding Cassette Transporters / biosynthesis
  • ATP-Binding Cassette Transporters / genetics
  • ATP-Binding Cassette Transporters / physiology*
  • Acute Disease
  • Adolescent
  • Adult
  • Aged
  • Aged, 80 and over
  • Antineoplastic Combined Chemotherapy Protocols / therapeutic use*
  • Disease-Free Survival
  • Drug Resistance, Neoplasm / drug effects*
  • Drug Resistance, Neoplasm / genetics
  • Female
  • Gene Expression Regulation, Leukemic*
  • Humans
  • Leukemia, Myeloid / drug therapy*
  • Leukemia, Myeloid / metabolism
  • Male
  • Middle Aged
  • Multidrug Resistance-Associated Proteins / physiology
  • Neoplasm Proteins / biosynthesis
  • Neoplasm Proteins / genetics
  • Neoplasm Proteins / physiology*
  • Remission Induction
  • Vidarabine / administration & dosage
  • Vidarabine / analogs & derivatives*
  • Vidarabine / pharmacology
  • Young Adult

Substances

  • ABCG2 protein, human
  • ATP Binding Cassette Transporter, Subfamily B, Member 1
  • ATP Binding Cassette Transporter, Subfamily G, Member 2
  • ATP-Binding Cassette Transporters
  • Multidrug Resistance-Associated Proteins
  • Neoplasm Proteins
  • Vidarabine
  • fludarabine
  • multidrug resistance-associated protein 1