BIRC5 and esophageal squamous cell carcinoma: The data showed that the application of survivin inhibitor YM155 impaired the abilities of DSE in proliferation inhibition (Figures 7A–D), migration or invasion inhibition (Figures 7E–L), angiogenesis inhibition (Figures 7M,N) and apoptosis induction (Figures 7O,P)in ESCC cells, which indicated that survivin plays a critical role in DSE against ESCC.