Abstract
Various radiosensitizers are being developed to increase the radiation sensitivity of hypoxic cancer cells, which show resistance to radiation. Previously, we demonstrated that an acetyl glucose-modified nitroimidazole derivative showed a high radiosensitizing effect by inhibiting glucose uptake and glycolysis. Based on this finding, we designed and synthesized novel sugar hybrid radiosensitizers, wherein acetyl glucose was introduced into gefitinib. Among them, UTX-114 had higher autophosphorylation and radiosensitizing activity than gefitinib and inhibited glucose uptake. This result supports our hypothesis that an acetyl glucose moiety improves the radiosensitizing effect of the drug, and UTX-114 can be expected to be a leading compound with a radiosensitizing effect.
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