Induction of Non-Targeted Stress Responses in Mammary Tissues by Heavy Ions

PloS One
Tony J C WangTom K Hei

Abstract

Side effects related to radiation exposures are based primarily on the assumption that the detrimental effects of radiation occur in directly irradiated cells. However, several studies have reported over the years of radiation-induced non-targeted/ abscopal effects in vivo that challenge this paradigm. There is evidence that Cyclooxygenase-2 (COX2) plays an important role in modulating non-targeted effects, including DNA damages in vitro and mutagenesis in vivo. While most reports on radiation-induced non-targeted response utilize x-rays, there is little information available for heavy ions. Adult female transgenic gpt delta mice were exposed to an equitoxic dose of either carbon or argon particles using the Heavy Ion Medical Accelerator in Chiba (HIMAC) at the National Institute of Radiological Sciences (NIRS) in Japan. The mice were stratified into 4 groups of 5 animals each: Control; animals irradiated under full shielding (Sham-irradiated); animals receiving whole body irradiation (WBIR); and animals receiving partial body irradiation (PBIR) to the lower abdomen with a 1 x 1 cm2 field. The doses used in the carbon ion group (4.5 Gy) and in argon particle group (1.5 Gy) have a relative biological effectiveness equivalent to ...Continue Reading

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Citations

Mar 6, 2018·International Journal of Radiation Biology·Masoud NajafiHamid Abdollahi
Oct 5, 2017·Physics in Medicine and Biology·Christian P Karger, Peter Peschke
Nov 30, 2018·International Journal of Radiation Biology·Sharmi Mukherjee, Anindita Chakraborty
Jul 1, 2018·International Journal of Particle Therapy·Christine E HellwegChrista Baumstark-Khan
Apr 23, 2020·Breast Cancer Research and Treatment·Timothy D MalouffLaura A Vallow

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Methods Mentioned

BETA
transgenic

Software Mentioned

HIMAC
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