title: dl-alpha-Tocopheryl succinate enhances the effect of gamma-irradiation on neuroblastoma cells in culture.
abstract: The effect of dl-alpha-tocopheryl (vitamin E) succinate in modifying the radiation response of mouse neuroblastoma (NBP2) and mouse fibroblast (L-cells) cells in culture was studied on the criterion of growth inhibition (due to cell death and inhibition of cell division). Results show that vitamin E succinate markedly enhanced the effect of 60CO-gamma-irradiation on NB cells, but it did not significantly modify the effect of irradiation on mouse fibroblasts. Sodium succinate plus ethanol (0.25% final concentration) did not modify the radiation response of NB cells or fibroblasts. Butylated hydroxyanisole, a lipid soluble antioxidant, also enhanced the effect of irradiation on NB cells, indicating that the effect of vitamin E in modifying the radiation response may be mediated, in part, by antioxidation mechanisms.
mesh_terms: D000818:Animals; D002083:Butylated Hydroxyanisole / Q000494:pharmacology; D002470:Cell Survival / Q000187:drug effects* / Q000528:radiation effects; D002478:Cells, Cultured; D004305:Dose-Response Relationship, Drug; D004307:Dose-Response Relationship, Radiation; D005720:Gamma Rays; D007739:L Cells; D051379:Mice; D009447:Neuroblastoma; D011838:Radiation-Sensitizing Agents; D024505:Tocopherols; D014810:Vitamin E / Q000031:analogs & derivatives* / Q000494:pharmacology
chemical_list: D011838:Radiation-Sensitizing Agents; D014810:Vitamin E; D002083:Butylated Hydroxyanisole; D024505:Tocopherols