Influence of the glutathione s-transferase gene polymorphisms on the susceptibility to basal cell skin carcinoma.

نویسندگان

  • Janaína L Leite
  • Elaine C Morari
  • Fabiana Granja
  • Gabriela M Campos
  • Ana C T Guilhen
  • Laura S Ward
چکیده

BACKGROUND The identification of groups at high risk is fundamental to determine preventive strategies for skin cancer. Destructive reactive oxygen species produced by UVA or chemical carcinogens are metabolized by a series of enzymes. Polymorphisms of genes encoding for these enzymes may produce defective proteins with a diminished ability to detoxify a wide range of carcinogens. AIMS To ascertain the influence and potential interactions of several polymorphisms of genes encoding four important antioxidant GST enzymes in the susceptibility to cancer among Brazilians. MATERIAL AND METHODS We compared the genotypes of Glutathione S-Transferase mu, theta, pi and omega (GSTM1, GSTT1, GSTP1 and GSTO2) in a group of 102 patients with skin lesions and 124 controls. RESULTS Patients with Basal Cell Skin Carcinoma (BCC) presented the combined GSTM1-GSTT1+ genotype more frequently (49.1%) than controls (29.8%) (Fisher test; p=0.04), conferring a 2.273 (Odds Ratio; 95% CI=1.199-4.308) higher risk for BCC. We were not able to find any other association between genotypes or between any genotype and the patients' clinical features. CONCLUSIONS The GST profile may help identify Brazilian individuals at higher risk for BCC.

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عنوان ژورنال:
  • Revista medica de Chile

دوره 135 3  شماره 

صفحات  -

تاریخ انتشار 2007