HIF1A and neoplasm: These results provided evidence that HIF-1α and GLUT-1 may be promising targets for increasing tumor radiosensitivity, however, the interplay among radioresistance, HIF-1 and GLUT-1 expression warrants further investigation.GLUT1 and HIF-1α mRNA, and protein levels showed significant linear correlations, however, neither GLUT1 nor HIF-1α expression was correlated significantly with SUVmaxT/N.