HIF1A and breast cancer: Pearson correlation analyses of ZEB1, MYC, and HIF1A gene expression in BC tissues demonstrated a negative correlation between miR‐561-3p expression and ZEB1 (Fig. 1C, r = −0.6335; P < 0.0001), MYC (Fig. 1D, r = −0.6021; P = 0.0003), and HIF1A mRNA levels(Fig. 1E, r = −0.8393; P < 0.0001).