Letter to the editor: Hypoxia kinetics and histology in combined radiotherapy and oxidative phosphorylation inhibition effects on antitumor immunity.

J Immunother Cancer

Radiotherapy & OncoImmunology laboratory, Department of Radiation Oncology, Radboudumc, Nijmegen, The Netherlands.

Published: March 2021

In response to the recent paper by Chen investigating the triple combination of oxidative phosphorylation inhibition, immunotherapy and radiotherapy, we would like to stress that after irradiation, a strong reduction in hypoxia (within 24 hours) can be followed by a strong increase (several days). This is especially the case with larger fraction sizes of radiation therapy, which are often applied in combination with immunotherapy, and is likely to be tumor dependent. All together this may strongly affect the synergistic effect of such a triple combination therapy.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7957125PMC
http://dx.doi.org/10.1136/jitc-2020-001793DOI Listing

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