In addition, the expression of various miRNAs, including miR-33a [69], miR-494 [55], miR-145 [56], miR-191 [57], miR-27a [58], miR-424 [59], miR-205 [70], miR-21 [60], miR-185 [61], miR-101 [71], miR-210-3p [62], miR-224-3p [72], miR-15a [73], miR-21 [63], and miR-107 [64], has been proven to be HIF-1α-dependent in the progression of various cancers. This evidence concerns the gene HIF1A and cancer.