ATAD3A overexpression was associated with a substantial decrease in cell proliferation and mammosphere formation not only in MDA-MB-468 cells (Fig. 5E, F) but also in BT549 cells (Figs. S5C and S5D) and delayed tumor growth without affecting mouse body weight (Figs. 5G–I, S5E). This evidence concerns the gene ATAD3A and neoplasm.