To this end, five different lengths of hTERT (− 205/+ 55, − 27/+ 55 [28], − 279/+ 5 [29], − 408/+ 5 [29], and − 408/+ 55) and one hTERT/CMV enhancer fusion promoter (hTC) [30] were cloned and tested in three ovarian cancer cell lines (Skov3, p53 null; Ovcar3, p53 R248Q DN; Kuramochi, p53 D281Y DN) and one normal cell line (BJ, p53 wt). Here, TP53 is linked to ovarian cancer.