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. 2015 Dec 21;15(3):337–344. doi: 10.1080/15384101.2015.1127477

Figure 1.

Figure 1.

Single-stranded DNA break-inducing agents stimulate cellular senescence-like growth arrest in early S-phase cells. The mechanism of this arrest includes the generation of single-stranded DNA breaks (SSBs), the collision of replication forks with these breaks and the formation of difficult-to-repair double-stranded DNA breaks (DSBs). CPT, camptothecin, H2O2, hydrogen peroxide.