Additionally, FSTL1 in BC cells can activate the Wnt/β-catenin signaling pathway via integrin β3, and miR-137 can downregulate FSTL1 mRNA and protein levels to form a miR-137/FSTL1/integrin β3/Wnt/β-catenin signaling axis, regulating BC stemness and chemoresistance [84]. This evidence concerns the gene FSTL1 and breast cancer.