Comparable cytotoxic activities of NAP-6 and the AhR agonist 10-chloro-7H-benzo[de]benzo[4,5]imidazo[2,1-a]isoquinolin-7-one (10-Cl-BBQ) have been reported in MDA-MB-468, T47D, ZR-75-1 and SKBR3 breast cancer cell lines [101]. Here, AHR is linked to breast cancer.