%0 Journal Article %T Letter to the Editor Re: Ogawa, Y. Cancers 2016, 8, 28 %A Cameron J. Koch %J Archive of "Cancers". %D 2016 %R 10.3390/cancers8060053 %X We read with interest the recently published paper by Dr. Ogawa ¡°Paradigm Shift in Radiation Biology/Radiation Oncology¡ªExploitation of the H2O2 Effect¡± for Radiotherapy Using Low-LET (Linear Energy Transfer) Radiation such as X-rays and High-Energy Electrons¡±. This paper suggests the use of hydrogen peroxide to convert the phenotype of solid tumors from radiation-resistant to radiation-sensitive. This novel approach could have wide application if the distribution of peroxide could be made sufficiently uniform to re-oxygenate cells that were resistant due to hypoxia and Dr. Ogawa additionally suggests that inactivation of peroxidases (e.g., glutathione peroxidase and catalase) by the hydrogen peroxide will itself cause sensitization [1] %K IR direct effect %K IR indirect effect %K oxygen effect %K radiation sensitizers %K radiation protectors %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4931618/