AHR and breast cancer: Since AhR is required for UroA mediated activities, we analyzed existing AhR-ligand Chip analysis using ChIP-Atlas (http://chip-atlas.org/target_genes) that were performed on breast cancer cell line MCF-7 (http://dbarchive.biosciencedbc.jp/kyushu-u/hg19/target/AHR.1.html).