To examine the suppressing effect of LOX on the propagation of breast cancer cells other than the basal B type MM231 cells, we further performed cell proliferation assays using MM468, T47D, BT474, and SKBR3 cells of the basal A, luminal A, luminal B, and HER2-overexpressing breast cancer types on Matrigel. The gene discussed is ERBB2; the disease is breast carcinoma.