Current Oncology Reports

, Volume 2, Issue 3, pp 251–256 | Cite as

Genetic polymorphism and cancer risk

  • Margie L. Clapper


Inter-individual variability in carcinogen metabolism has been attributed in part to the polymorphic expression of several phase I and II detoxification enzymes. The role of these genetic polymorphisms in cancer susceptibility has been most extensively evaluated for isozymes of cytochrome P450 (CYP1A1, CYP2D6, and CYP2E1), N-acetyltransferase (NAT1 and NAT2), glutathione S-transferase (GSTM1, GSTT1, and GSTP1), microsomal epoxide hydrolase, and NAD(P)H:quinone oxidoreductase. Our understanding of the genetic basis of cancer risk has been enhanced most recently by establishment of genotype-phenotype correlations in humans and identification of numerous diverse factors, both genetic and environmental, that can modify risk.


Cancer Risk Breast Cancer Risk Cancer Susceptibility Oral Squamous Cell Carcinoma Lung Cancer Risk 
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Copyright information

© Current Science Inc 2000

Authors and Affiliations

  • Margie L. Clapper
    • 1
  1. 1.Fox Chase Cancer CenterPhiladelphiaUSA

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