In contrast, Nar differentially upregulated the expression of p18, p19, and p21 in both human colorectal cancer cell lines, SW11116 (Figure 5Ac) and SW837 (Figure 5Ad), and breast cancer cell lines, HTB26 (Figure 5Bc) and HTB132 (Figure 5Bd). Here, CPSF4 is linked to breast carcinoma.