Reducing radiation-induced gastrointestinal toxicity -The role of the PHD/HIF axis

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Abstract

Radiotherapy is an effective treatment strategy for cancer, but a significant proportion of patients experience radiationinduced toxicity due to damage to normal tissue in the irradiation field. The use of chemical or biological approaches aimed at reducing or preventing normal tissue toxicity induced by radiotherapy is a long-held goal. Hypoxia-inducible factors (HIFs) regulate the production of factors that may protect several cellular compartments affected by radiation-induced toxicity. Pharmacological inhibitors of prolyl hydroxylase domain-containing enzymes (PHDs), which result in stabilization of HIFs, have recently been proposed as a new class of radioprotectors. In this review, radiation-induced toxicity in the gastrointestinal (GI) tract and the main cellular compartments studied in this context will be discussed. The effects of PHD inhibition on GI radioprotection will be described in detail.

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Olcina, M. M., & Giaccia, A. J. (2016, October 3). Reducing radiation-induced gastrointestinal toxicity -The role of the PHD/HIF axis. Journal of Clinical Investigation. American Society for Clinical Investigation. https://doi.org/10.1172/JCI84432

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