To date, considerable evidence has shown that BRD7 is commonly downregulated in many malignancies, such as nasopharyngeal carcinoma, epithelial ovarian cancer, and breast cancer, and BRD7 functions as a tumor suppressor (Park Y. A. et al., 2014; Liu et al., 2018; Ma et al., 2019). This evidence concerns the gene BRD7 and breast carcinoma.