SLC2A1 and breast cancer: Pereira et al. [19] demonstrated an enhanced therapeutic effect of the combination of chlorin and galactodendritic units (ChGal8) in UM-UC-3 and HT1376 BC cells after one and two cycles of irradiation, respectively; a second irradiation appeared to increase mithocondrial permeability to ChGal8 through GLUT-1 [19].