In addition, analysis of two publicly available datasets (GSE27562 and GSE65194) revealed that the expression levels of E‐cadherin and AXIN2 were significantly negatively correlated with CUL4B expression, whereas MTA1 was significantly positively correlated with CUL4B expression in breast cancer samples (Figure S3B, Supporting Information 1). Here, AXIN2 is linked to breast cancer.