Figure 4. Evaluation of ZFAS1 in three GC cell lines compared to a normal gastric cell line GES-1. The expression level of ZFAS1 in gastric cancer cell lines (AGS, SGC-7901, and BGC-823) were higher than that in human gastric epithelial cell line GES-1, *, P < 0.05. The relative expression level was calculated using 2-ΔΔCt method.