The immunoreactivity scores were also lower in CIS and SCC samples than in NC samples (Figure 1C, CIS vs. NC, P < 0.05; SCC vs. NC, p < 0.01), but there was no significant difference between the CIS and SCC samples (Figure 1C), suggesting that Slug is involved in the development of cervical carcinoma. Here, SNAI2 is linked to in situ carcinoma.