title: Rejoining of double strand breaks in normal human and ataxia-telangiectasia fibroblasts after exposure to 60Co gamma-rays, 241Am alpha-particles or bleomycin.
abstract: The rejoining of DNA double strand breaks (dsb) induced by 60Co gamma-rays, 241Am alpha-particles or bleomycin was measured by neutral filter elution. In agreement with their colony-forming ability, ataxia-telangiectasia cells (AT2BE) and normal fibroblasts exhibited similar dsb rejoining capacity following alpha-irradiation, but showed marked differences in the rejoining kinetics of dsb induced by gamma-rays or bleomycin.
mesh_terms: D000512:Alpha Particles; D001260:Ataxia Telangiectasia / Q000235:genetics*; D001761:Bleomycin / Q000633:toxicity*; D002455:Cell Division / Q000187:drug effects / Q000528:radiation effects; D002478:Cells, Cultured; D004247:DNA / Q000528:radiation effects; D004249:DNA Damage; D004260:DNA Repair; D004305:Dose-Response Relationship, Drug; D004307:Dose-Response Relationship, Radiation; D005720:Gamma Rays; D006801:Humans; D007700:Kinetics
chemical_list: D001761:Bleomycin; D004247:DNA