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Drug transport by breast cancer resistance protein

Maren Poguntke1, Eszter Hazai, Martin F Fromm

  • 1University of Erlangen-Nuremberg, Institute of Experimental and Clinical Pharmacology and Toxicology, Fahrstr. 17, 91054 Erlangen, Germany.

Expert Opinion on Drug Metabolism & Toxicology
|September 30, 2010
PubMed
Abstract

Insights

The ATP-binding cassette transporter ABCG2 impacts drug pharmacokinetics, safety, and efficacy. Understanding ABCG2 drug interactions is crucial for effective cancer drug development and personalized medicine.

Area of Science:

  • Pharmacology
  • Molecular Biology
  • Drug Development

Background:

  • The ATP-binding cassette transporter ABCG2 is a key factor in cancer multi-drug resistance.
  • ABCG2 significantly influences drug pharmacokinetics, safety, and efficacy.
  • Recent studies highlight ABCG2's role beyond resistance, impacting drug profiles.

Purpose of the Study:

  • To review clinical evidence on ABCG2's role in pharmacokinetics and pharmacodynamics.
  • To address preclinical drug evaluation questions regarding ABCG2.
  • To provide an update on ABCG2's importance in drug disposition and development.

Main Methods:

  • Review of clinical evidence on ABCG2's role.
  • Discussion of ABCG2 structure and drug-transporter interactions.
  • Exploration of ABCG2 polyspecificity mechanisms.
  • Evaluation of in vitro and in silico methods for studying ABCG2 interactions.

Main Results:

  • ABCG2 is critical in drug disposition, particularly in drug development.
  • Current knowledge emphasizes ABCG2's influence on drug safety and efficacy.
  • The review provides an update on ABCG2's role in drug development.

Conclusions:

  • Drug-ABCG2 interactions are advancing into clinical practice.
  • Structural understanding of ABCG2 binding and transport remains incomplete.
  • Novel concepts like electrostatic funneling may explain ABCG2 multispecificity and aid in silico predictions.

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