Figure 5.

The expression levels of delta‐like 3 (DLL3) in gastrointestinal‐neuroendocrine carcinoma ECC cell lines. A, DLL3 mRNA expression in ECC cell lines, compared with that in other cancer cell lines (hepatocellular carcinoma cells, HepG2; and colon cancer cells, DLD‐1). The ratio of DLL3 expression to that of HepG2 was calculated, and the values are shown with HepG2 normalized to 1.0. Results are presented as the mean ± SD; ***P < 0.001. B, The protein expression level of DLL3 in these cells