SLC2A1 and neoplasm: All GLUT1-T, TFAM-T, and GLUT1/TFAM-T cells demonstrated significantly increased gene expression by 4.1-fold, 2.2-fold, and 6.5-fold, respectively (Figure 3B), of IL-2, a key cytokine known to promote T cell proliferation by preventing their exhaustion and overcoming tumor immunosuppressors [50,51].