Morphometric analysis of immunohistochemical images showed that RLS40 tumor tissue without treatment (control) and tumors injected with control oligonucleotide μ-Scr-ON has 66 ± 6.1% and 56.2 ± 8.3% of PCNA-positive cells, respectively (Figure 7c,e). This evidence concerns the gene PCNA and neoplasm.