MCTP1 and in situ carcinoma: We observed a statistically significant decrease in MCTP1 transcript levels in the W1CR cell line (p < 0.001) (Figure 1A) and in both A2780 CIS-resistant cell lines (p < 0.01 in the A2780CR1 cell line and p < 0.001 in the A2780CR2 cell line) (Figure 1B).