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Part 3: Pharmacogenetic variability in phase II anticancer drug metabolism

Maarten J Deenen1, Annemieke Cats, Jos H Beijnen

  • 1The Netherlands Cancer Institute, Department of Medical Oncology, Amsterdam, The Netherlands.

The Oncologist
|June 11, 2011
PubMed

Insights

Genetic variations in phase II drug-metabolizing enzymes significantly impact anticancer drug efficacy. Understanding this pharmacogenetic variability can personalize cancer therapy for better patient outcomes.

Area of Science:

  • Pharmacogenetics
  • Oncology
  • Drug Metabolism

Background:

  • Interpatient variability in anticancer drug response is significant.
  • Nongenetic factors explain only part of this variability.
  • Genetic differences are crucial for drug response variations.

Purpose of the Study:

  • To review genetic variability in phase II drug-metabolizing enzymes.
  • To discuss the impact of genetic polymorphisms on anticancer therapy.
  • To propose opportunities for personalized anticancer therapy.

Main Methods:

  • Literature review on pharmacogenetic variability.
  • Focus on phase II drug-metabolizing enzymes: GSTs, UGTs, methyltransferases, SULTs, NATs.
  • Analysis of genetic polymorphism effects on anticancer drug outcomes.

Main Results:

  • Genetic polymorphisms in phase II enzymes influence drug metabolism and transport.
  • These variations affect the efficacy and toxicity of anticancer drugs.
  • Specific enzyme families (e.g., GSTs, UGTs) show significant polymorphic impact.

Conclusions:

  • Pharmacogenetic variability in phase II enzymes is a key factor in anticancer therapy.
  • Tailoring therapy based on genetic profiles can optimize treatment.
  • Further research can lead to more precise, individualized cancer treatments.

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