Total 12 microRNAs containing miR-29a-3p, miR-29b-3p, miR-143-3p, miR-149-5p, miR-29c-3p, miR-432-5p, miR-599, miR-653-5p, miR-760, miR-942-5p, miR-1251-5p, and miR-212-5p were predicted to target ACE2 and showed a significantly negative or positive correlation with ACE2 expression in 30 cancer types (-0.42 < Cor < 0.46; P < 0.05) (Figure 7A). Here, ACE2 is linked to cancer.