SLC2A1 and neoplasm: Consistent with the glucose metabolic patterns in different cell populations in vitro, immunofluorescence imaging and quantitative data by flow cytometry on 4T1 tumors extracted from Balb/c mouse models indicated that tumor-infiltrating CD45+ lymphocytes were generally associated with higher GLUT3 expression levels, while tumor cells tended to express high levels of GLUT1 for glucose uptake (Fig. 3j, k and Supplementary Fig. 15).