HIF1A and cancer: The vascular endothelial growth factor (VEGF) has been reported to be modulated by miR-20b via the hypoxia-inducible factor 1-alpha (HIF1α) in response to hypoxia [87], whereas FoxO1 was regulated by miR-27a in cancer cells [88], and SIRT-1 by miR-9 in stem cells [89].