Specifically, we quantified the effect of a ROCK inhibitor on the sensitivity to bacteria of cervical carcinoma M-HeLa cells, which normally do not synthesize E-cadherin [12], and adenocarcinoma alveolar basal epithelial A549 cells, which should synthesize the E-cadherin characteristic of epithelial cells [2]. The gene discussed is CDH1; the disease is cervical carcinoma.