In order to figure out whether FZU-00,003 could suppress survival of breast cancer cells other than HCC1937 and SUM149PT cell lines, we also treated 5 other breast cancer cell lines (including another TNBC cell line HCC1806, two luminal breast cancer cell lines MCF7 and T47D, and two HER2+ cell lines SKBR3 and BT474) with FZU-00,003. Here, ERBB2 is linked to breast carcinoma.