Pathways of heterocyclic amine activation in the breast: DNA adducts of 2-amino-3-methylimidazo[4,5-f]quinoline (IQ) formed by peroxidases and in human mammary epithelial cells and fibroblasts.

Abstract excerpt

Most human mammary carcinomas originate in the epithelial cells of the breast ducts. A potential role of heterocyclic amines (HAs) in the aetiology of this disease has led us to investigate peroxidase-catalysed and stromal (non-epithelial) activation of the HA 2-amino-3-methylimidazo[4,5-f]quinoline (IQ), which may subsequently lead to DNA damage in the adjacent human mammary epithelial cells (HMECs). HAs are...

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