By regulating the G1/S phase, cyclin‐dependent kinase 4 (CDK4) and CDK6 may participate in breast cancer cell metastasis,6 high Cyclin D1/CDK4 complex levels increase glioblastoma cell metastasis,7 and RUNX2 promotes PCa cell bone metastases and tissue invasion of C4‐2B and LNCap PCa cells.8 This evidence concerns the gene CCND1 and breast carcinoma.