FOXO1 and breast cancer: Since our previous study confirm that the 3’UTR of transcription factor FOXO1 could repress the metastasis of breast cancer cells via regulating miR-9 activity, future work is required to explore whether a broader ceRNA network (ceRNET) involving FOXO1 and its targets exists to coordinate the STARD13 ceRNAs in inhibiting breast cancer metastasis.