HIF1A and breast cancer: Similarly, circ_0003575, circ_0003204, circ_002136, and circ-001971/miR-29c-3p plays an important role in angiogenesis (71–73),circ_001621/miR-578 regulates VEGF/HIF-1α axis controlling breast cancer angiogenesis (74), circ_0007059/miR-378 regulates EMT transition in lung cancer cells (75).