27 showed that TCDD exerts cell‐dependent AR facilitating activity in short poly‐Q expressing cells. Sanada et al. 28 also found that androgen represses AhR‐induced transcriptional activation in human prostate and breast cancer cell lines. Krüger et al. 29 reported plastic components activation of AhR and AR in vitro. The gene discussed is AHR; the disease is breast carcinoma.