SLC2A1 and cancer: Expression of metabolism- and autophagy-related proteins such as GLUT-1, MCT-4, ATP synthase, LC-3I and LC-3II, along with chemo-resistance and cancer relapse were noted the highest in TNBC, showing Warburg’s and mixed type of glycolysis, and the lowest in luminal A and B cancers, displaying reverse Warburg’s and null type of glycolysis.