To explain in‐depth the mechanisms of SIX‐1‐induced EMT in BC metastases, we performed PCR array assay in the SIX‐1 Sh‐1 group and NC group in MDA‐MB‐231 cells or SIX‐1 OE group and vector group in MCF‐7 cells. Here, SIX1 is linked to breast cancer.