The results in Fig. 7 disclosed the most vital KEGG pathways of the hub genes regulated by miR-155 associated with BC including pathways in cancer, proteoglycans in cancer, Jak-STAT signaling pathway, PI3K-Akt signaling pathway, microRNAs in cancer, MAPK signaling pathway, and FoxO signaling pathway. This evidence concerns the gene SOAT1 and breast cancer.