SLC2A5 and breast carcinoma: Furthermore, inhibitor effect on GLUT5 fructose transport in the hxt0 strain, as indicated by inhibitor IC50 value, is similar to that determined for GLUT5 inhibition in the human breast cancer cells MCF-7 (in the case of MSNBA) and in GLUT5-expressing Xenopus laevis oocytes (in the case of ECG).