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Pharmacogenomics of ABC transporters and its role in cancer chemotherapy

Alex Sparreboom1, Romano Danesi, Yuichi Ando

  • 1Clinical Pharmacology Research Core, Center for Cancer Research, National Cancer Institute, Bethesda, MD 20892, USA.

Drug Resistance Updates : Reviews and Commentaries in Antimicrobial and Anticancer Chemotherapy
|May 6, 2003
PubMed

Insights

Genetic variants in ATP-binding cassette (ABC) transporters impact drug efficacy and side effects. Understanding these variations is key for personalized cancer chemotherapy and reducing adverse drug reactions.

Area of Science:

  • Pharmacogenomics
  • Molecular Biology
  • Oncology

Background:

  • ATP-binding cassette (ABC) transporters are crucial for drug disposition and resistance in cancer.
  • Key ABC transporters include ABCB1, ABCC1, ABCC2, and ABCG2, influencing drug absorption and cellular efflux.
  • Expression levels of these proteins affect patient susceptibility to drug side effects, interactions, and treatment outcomes.

Purpose of the Study:

  • To review recent advances in the pharmacogenomics of ABC transporters.
  • To discuss the implications of genetic variants in ABC transporters for cancer pharmacotherapy.

Main Methods:

  • Literature review of recent studies on ABC transporter pharmacogenomics.
  • Analysis of the functional impact of naturally occurring genetic variants in ABC transporter genes.

Main Results:

  • Genetic variations in ABC transporter genes can alter protein function and expression levels.
  • These alterations have significant consequences for drug efficacy and toxicity in cancer patients.
  • Specific variants may predispose individuals to certain drug-induced side effects or influence treatment response.

Conclusions:

  • Pharmacogenomic insights into ABC transporters are vital for optimizing cancer treatment.
  • Genetic testing for ABC transporter variants could enable personalized chemotherapy regimens.
  • Further research is needed to fully elucidate the clinical utility of targeting ABC transporter pharmacogenomics in oncology.

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