[Multidrug resistance mediated by membrane P-glycoprotein in acute myeloid leukemia]

Li-Ping Su1

  • 1Department of Hematology, The Second Teaching Hospital, Shanxi Medical University, Taiyuan 030001, China. lpsu588@sohu.com

Insights

Drug resistance in acute leukemia is a major challenge. This review examines how intracellular drug transport, particularly the role of transporters like P-glycoprotein (P-gp), contributes to treatment failure in acute myeloid leukemia (AML).

Area of Science:

  • Oncology
  • Pharmacology
  • Molecular Biology

Background:

  • Chemotherapeutic drug resistance is a significant obstacle in treating acute leukemia.
  • Mechanisms include impaired apoptosis and reduced intracellular drug efficacy.
  • This review specifically addresses intracellular drug transport resistance.

Purpose of the Study:

  • To review the mechanisms of intracellular drug transport resistance in acute leukemia.
  • To discuss the role of specific ATP-binding cassette (ABC) transporters in multidrug resistance.
  • To explore the correlation between transporter expression and patient outcomes in acute myeloid leukemia (AML).

Main Methods:

  • Literature review focusing on intracellular drug transport mechanisms.
  • Analysis of studies investigating ATP-binding cassette (ABC) transporters, including P-glycoprotein (P-gp), multidrug resistance protein (MRP), and lung resistance protein (LRP).
  • Examination of correlations between transporter expression and clinical outcomes in acute myeloid leukemia (AML).

Main Results:

  • Expression of P-glycoprotein (P-gp) is generally linked to poorer prognosis in AML.
  • Expression of multidrug resistance-associated protein (MRP) and lung resistance protein (LRP) also shows a correlation with AML outcomes, though this is more debated.
  • Intracellular drug transport mechanisms are critical factors in chemotherapy resistance.

Conclusions:

  • Intracellular drug transport, mediated by transporters like P-gp, MRP, and LRP, plays a crucial role in acute leukemia treatment failure.
  • Understanding these mechanisms is vital for developing strategies to overcome drug resistance in AML.
  • Targeting these transporters may offer new therapeutic avenues for improving patient outcomes.

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