In the current study, our results demonstrate that the p53 gene region is more rapidly repaired than the hTERT gene region in the bladder cancer cell lines RT4 and RT112 (Figure 3a & 3b), which expands on our previous observations that the p53 gene region is repaired more rapidly than the overall genome following DNA damage [21], [22]. This evidence concerns the gene TP53 and urinary bladder carcinoma.