Fig. 1.

Efficiency of DLL4 knockdown in cervical cancer cells. a Western blot analysis and b real-time PCR analyses of the DLL4 expression levels in SiHa, Me180, C33A, and Caski CC cells at mRNA and protein levels. c Real‑time PCR and Western blot analyses was performed to detect the silencing efficiency of the two siRNA sequences, expression level of DLL4 was significantly downregulated in the DLL4 siRNA groups compared with the control group at both the mRNA and protein levels in Caski and SiHa cells. **P < 0.01, ***P < 0.001