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目的 :评价多二磷酸腺苷 (ADP)_核糖基化的反式显性抑制作用对辐射诱导DNA双链断裂 (DSB)的再结合动力学的影响。方法 :①COM3和COR3细胞均为SV40转化的仓鼠细胞系CO60的稳定转染子 ,前者含地塞米松(Dex)诱导的多ADP_核糖聚合酶 (PARP_
AIM: To evaluate the effect of trans-dominant inhibition of adenosine diphosphate (ADP) ribosylation on the re-binding kinetics of radiation-induced DNA double-strand break (DSB). METHODS: Both COM3 and COR3 cells were stable transfectants of hamster cell line CO60 transformed with SV40. The former contained dexamethasone (Dex) -induced poly ADP-ribose polymerase (PARP_