qRT‐PCR results revealed that the mRNA expression of WDR41 was notably decreased in breast cancer cells compared to that in normal MCF‐10A cells, indicating lower WDR41 levels in cell lines with a high invasive capability (MDA‐MB‐231: a 50% fall, P = .003; SKBR3: a 75% fall, P = .0001) than those in MCF‐7 cells with a lower invasive capability (a 30% fall, P = .0473) (Figure 1B). This evidence concerns the gene WDR41 and breast cancer.