We analyzed the protein or phosphorylation levels of AR and CIP2A in an immortalized prostate cell line PZ-HPV-7 (PZ), an androgen-sensitive LNCaP C-33 (C-33), and two androgen-independent PCa cell lines, i.e., LNCaP C-81 (C-81) and 22Rv1 [12, 17]. Here, CIP2A is linked to posterior cortical atrophy.