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[Genetic polymorphisms on drug metabolizing enzymes in relation to anti-cancer drug effectiveness]

Shogo Ozawa1

  • 1Division of Pharmacology, National Institute of Health Sciences, Setagaya-ku, Tokyo 158-8501.

Rinsho Byori. the Japanese Journal of Clinical Pathology
|April 15, 2003
PubMed

Insights

Genetic variations in drug metabolizing enzymes and transporters significantly impact how patients respond to common anti-cancer drugs like irinotecan, taxol, and 5-fluorouracil, potentially causing adverse effects.

Area of Science:

  • Pharmacogenomics
  • Drug Metabolism
  • Molecular Biology

Context:

  • Inter-individual variability in drug metabolizing enzymes (DMEs) and drug transporters is well-established.
  • Single nucleotide polymorphisms (SNPs) in genes encoding DMEs and transporters can lead to enzyme or transporter deficiency.
  • Deficiency in a key DME for a therapeutic drug can result in serious adverse effects.

Purpose:

  • To investigate the influence of genetic polymorphisms on the metabolism and disposition of key anti-cancer drugs.
  • To explore how variations in DMEs and transporters affect the efficacy of irinotecan, taxol, and 5-fluorouracil.
  • To provide insights into the pharmacogenetic basis of anti-cancer drug response.

Summary:

  • Genetic polymorphisms in drug metabolizing enzymes and transporters are linked to varying drug efficacy and potential adverse events.
  • The effectiveness of irinotecan, taxol, and 5-fluorouracil is likely influenced by the functional status of specific DMEs and transporters.
  • This study examines the impact of genetic variations on the metabolic pathways and pharmacokinetic profiles of these critical anti-cancer agents.

Impact:

  • Understanding these genetic influences can personalize anti-cancer therapy, optimizing treatment outcomes.
  • Identifying patients at risk for adverse drug reactions due to genetic deficiencies can improve patient safety.
  • This research contributes to the field of pharmacogenomics, guiding the development of targeted cancer treatments.

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