FZD4 and breast cancer: In addition, several studies have shown that the inactivation of miR-493 has led to the overproduction of oncogenic RhoC and FZD4 that promotes cell migration and invasion in bladder cancer [13]; IGF1R that promotes colon cancer cells metastasis to liver [12]; and FUT4 that enhances the invasiveness and tumorigenicity in human breast cancer [14].