TP53 and breast carcinoma: We thus measured Δ133p53 mRNA expression by RT-qPCR (Taqman) and found it significantly higher in the invasive cell lines whether they express WT or mutant TP53 gene, i.e. LoVo, SW620 and CoLo205, as compared with HCT116 and SW480 cell lines (Figure 4C), in agreement with the results obtained in the breast cancer cell lines.