To investigate the effect of SCD1 on the tumorigenesis of gastric cancer cells in vivo, the xenograft mice model was constructed and relevant results revealed that SCD1 promoted tumor formation (MKN45-Vector: 779.9 ± 73.670 mm3, MKN45-SCD1: 1444 ± 117.300 mm3; P <0.01, Figure 5A, 5B). The gene discussed is SCD; the disease is gastric cancer.