DNA as an important target in radiation-induced apoptosis of MYC and MYC plus RAS transfected rat embryo fibroblasts.
PURPOSE: This study uses a radiation chemistry approach to determine if DNA is an important target for radiation-induced apoptosis of myc (MR4) and myc plus ras (3.7) transfected rat embryo fibroblast cell lines. MATERIALS AND METHODS: The radiation protection efficiency of four thiols was compared with net molecular charge ranging from -1 to +2: mercaptopropionic acid (Z= -1), mercaptoethanol (Z=0), cysteamine (Z= +1), N(2-mercaptoethyl)-1,3-diaminopropane (Z= +2). Protection factors were de...Expand abstract
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