Both glucose uptake and the expression of the glucose transporter Glut1 (Slc2a1), but not that of Glut2 (Slc2a2), Glut3 (Slc2a3), or Glut4 (Slc2a4), were elevated in Cpt1a-deficient ErbB2 tumor cells (Fig. 3a–c and Supplementary Fig. 3a, b). Here, SLC2A4 is linked to neoplasm.