SLC2A1 and neoplasm: Azad et al. found that the expression of GLUT-1 in oral squamous cell carcinoma was also closely related to smoking history (P<0.001), Bryne grade (P<0.001), tumor size (P=0.001), lymph node metastasis (P=0.022), and clinical stage (P<0.001).GLUT-1 also shows a progressive switch from membranous to cytoplasmic to a combined location and is correlated with histopathologic grade and pTNM stage.