3-Methylindole metabolites induce lung CYP1A1 and CYP2F1 enzymes by AhR and non-AhR mechanisms, respectively.

@article{Weems20103MethylindoleMI,
  title={3-Methylindole metabolites induce lung CYP1A1 and CYP2F1 enzymes by AhR and non-AhR mechanisms, respectively.},
  author={Jessica M Weems and Garold S. Yost},
  journal={Chemical research in toxicology},
  year={2010},
  volume={23 3},
  pages={696-704}
}
3-Methylindole (3MI) is a highly selective pneumotoxicant that is present in abundant amounts (as high as 1.4 mug/cigarette) in cigarette smoke. Several human cytochrome P450 enzymes that are expressed in lung, such as CYP1A1, CYP2F1, CYP2A13, and CYP4B1, catalyze the dehydrogenation of 3MI to the reactive intermediate 3-methyleneindolenine, which alkylates DNA and induces cell death through apoptosis. In addition, 3MI potently damages DNA at low concentrations (observable at 0.1 muM). However… CONTINUE READING

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