Checkpoint-arrested cells resume cell-cycle progression once damage has been repaired, whereas cells with unrepairable DNA lesions undergo permanent cell-cycle arrest or apoptosis.

• 一旦损伤被修复，被阻滞的检测点细胞恢复一系列的细胞周期，而没有被修复的DNA损伤细胞经历永久的细胞周期阻滞或是细胞凋亡。