SLC2A5 and Hypoglycemia: Such limitations on the current study indicate the demands on further investigations that more patient samples are required to confirm the relationship between cancer driver genes and GLUT5 abundance; moreover, besides of cancer driver genes, extracellular-microenvironment conditions including hypoxia, hypoglycemia, and cytokines are not to be omitted when interpreting the in vivo regulatory effects on GLUT5.